diff --git a/internal/app/app.go b/internal/app/app.go
index d3e5708..0adb4ae 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -30,9 +30,9 @@ type App struct {
 	groupManager      *services.GroupManager
 	logCleanupService *services.LogCleanupService
 	requestLogService *services.RequestLogService
-	keyCronService    *services.KeyCronService
+	cronChecker       *keypool.CronChecker
 	keyPoolProvider   *keypool.KeyProvider
-	leaderService     *services.LeaderService
+	leaderLock        *store.LeaderLock
 	proxyServer       *proxy.ProxyServer
 	storage           store.Store
 	db                *gorm.DB
@@ -48,9 +48,9 @@ type AppParams struct {
 	GroupManager      *services.GroupManager
 	LogCleanupService *services.LogCleanupService
 	RequestLogService *services.RequestLogService
-	KeyCronService    *services.KeyCronService
+	CronChecker       *keypool.CronChecker
 	KeyPoolProvider   *keypool.KeyProvider
-	LeaderService     *services.LeaderService
+	LeaderLock        *store.LeaderLock
 	ProxyServer       *proxy.ProxyServer
 	Storage           store.Store
 	DB                *gorm.DB
@@ -65,9 +65,9 @@ func NewApp(params AppParams) *App {
 		groupManager:      params.GroupManager,
 		logCleanupService: params.LogCleanupService,
 		requestLogService: params.RequestLogService,
-		keyCronService:    params.KeyCronService,
+		cronChecker:       params.CronChecker,
 		keyPoolProvider:   params.KeyPoolProvider,
-		leaderService:     params.LeaderService,
+		leaderLock:        params.LeaderLock,
 		proxyServer:       params.ProxyServer,
 		storage:           params.Storage,
 		db:                params.DB,
@@ -77,25 +77,25 @@ func NewApp(params AppParams) *App {
 // Start runs the application, it is a non-blocking call.
 func (a *App) Start() error {
 
-	// 启动 Leader Service 并等待选举结果
-	if err := a.leaderService.Start(); err != nil {
+	// 启动 Leader Lock 服务并等待选举结果
+	if err := a.leaderLock.Start(); err != nil {
 		return fmt.Errorf("leader service failed to start: %w", err)
 	}
 
 	// Leader 节点执行初始化，Follower 节点等待
-	if a.leaderService.IsLeader() {
+	if a.leaderLock.IsLeader() {
 		logrus.Info("Leader mode. Performing initial one-time tasks...")
-		acquired, err := a.leaderService.AcquireInitializingLock()
+		acquired, err := a.leaderLock.AcquireInitializingLock()
 		if err != nil {
 			return fmt.Errorf("failed to acquire initializing lock: %w", err)
 		}
 		if !acquired {
 			logrus.Warn("Could not acquire initializing lock, another leader might be active. Switching to follower mode for initialization.")
-			if err := a.leaderService.WaitForInitializationToComplete(); err != nil {
+			if err := a.leaderLock.WaitForInitializationToComplete(); err != nil {
 				return fmt.Errorf("failed to wait for initialization as a fallback follower: %w", err)
 			}
 		} else {
-			defer a.leaderService.ReleaseInitializingLock()
+			defer a.leaderLock.ReleaseInitializingLock()
 
 			// 数据库迁移
 			if err := a.db.AutoMigrate(
@@ -115,7 +115,7 @@ func (a *App) Start() error {
 			}
 			logrus.Info("System settings initialized in DB.")
 
-			a.settingsManager.Initialize(a.storage, a.groupManager, a.leaderService)
+			a.settingsManager.Initialize(a.storage, a.groupManager, a.leaderLock)
 
 			// 从数据库加载密钥到 Redis
 			if err := a.keyPoolProvider.LoadKeysFromDB(); err != nil {
@@ -125,10 +125,10 @@ func (a *App) Start() error {
 		}
 	} else {
 		logrus.Info("Follower Mode. Waiting for leader to complete initialization.")
-		if err := a.leaderService.WaitForInitializationToComplete(); err != nil {
+		if err := a.leaderLock.WaitForInitializationToComplete(); err != nil {
 			return fmt.Errorf("follower failed to start: %w", err)
 		}
-		a.settingsManager.Initialize(a.storage, a.groupManager, a.leaderService)
+		a.settingsManager.Initialize(a.storage, a.groupManager, a.leaderLock)
 	}
 
 	// 显示配置并启动所有后台服务
@@ -138,7 +138,7 @@ func (a *App) Start() error {
 
 	a.requestLogService.Start()
 	a.logCleanupService.Start()
-	a.keyCronService.Start()
+	a.cronChecker.Start()
 
 	// Create HTTP server
 	serverConfig := a.configManager.GetEffectiveServerConfig()
@@ -174,8 +174,8 @@ func (a *App) Stop(ctx context.Context) {
 	}
 
 	// Stop background services
-	a.keyCronService.Stop()
-	a.leaderService.Stop()
+	a.cronChecker.Stop()
+	a.leaderLock.Stop()
 	a.logCleanupService.Stop()
 	a.requestLogService.Stop()
 	a.groupManager.Stop()
diff --git a/internal/config/system_settings.go b/internal/config/system_settings.go
index b8853ec..34307a4 100644
--- a/internal/config/system_settings.go
+++ b/internal/config/system_settings.go
@@ -35,12 +35,12 @@ type groupManager interface {
 	Invalidate() error
 }
 
-type leaderService interface {
+type leaderLock interface {
 	IsLeader() bool
 }
 
 // Initialize initializes the SystemSettingsManager with database and store dependencies.
-func (sm *SystemSettingsManager) Initialize(store store.Store, gm groupManager, leader leaderService) error {
+func (sm *SystemSettingsManager) Initialize(store store.Store, gm groupManager, leaderLock leaderLock) error {
 	settingsLoader := func() (types.SystemSettings, error) {
 		var dbSettings []models.SystemSetting
 		if err := db.DB.Find(&dbSettings).Error; err != nil {
@@ -82,7 +82,7 @@ func (sm *SystemSettingsManager) Initialize(store store.Store, gm groupManager,
 	}
 
 	afterLoader := func(newData types.SystemSettings) {
-		if !leader.IsLeader() {
+		if !leaderLock.IsLeader() {
 			return
 		}
 		if err := gm.Invalidate(); err != nil {
diff --git a/internal/container/container.go b/internal/container/container.go
index a976be1..f8d2567 100644
--- a/internal/container/container.go
+++ b/internal/container/container.go
@@ -25,9 +25,6 @@ func BuildContainer() (*dig.Container, error) {
 	if err := container.Provide(config.NewManager); err != nil {
 		return nil, err
 	}
-	if err := container.Provide(services.NewLeaderService); err != nil {
-		return nil, err
-	}
 	if err := container.Provide(db.NewDB); err != nil {
 		return nil, err
 	}
@@ -37,6 +34,9 @@ func BuildContainer() (*dig.Container, error) {
 	if err := container.Provide(store.NewStore); err != nil {
 		return nil, err
 	}
+	if err := container.Provide(store.NewLeaderLock); err != nil {
+		return nil, err
+	}
 	if err := container.Provide(httpclient.NewHTTPClientManager); err != nil {
 		return nil, err
 	}
@@ -51,9 +51,6 @@ func BuildContainer() (*dig.Container, error) {
 	if err := container.Provide(services.NewKeyManualValidationService); err != nil {
 		return nil, err
 	}
-	if err := container.Provide(services.NewKeyCronService); err != nil {
-		return nil, err
-	}
 	if err := container.Provide(services.NewKeyService); err != nil {
 		return nil, err
 	}
@@ -72,6 +69,9 @@ func BuildContainer() (*dig.Container, error) {
 	if err := container.Provide(keypool.NewKeyValidator); err != nil {
 		return nil, err
 	}
+	if err := container.Provide(keypool.NewCronChecker); err != nil {
+		return nil, err
+	}
 
 	// Handlers
 	if err := container.Provide(handler.NewServer); err != nil {
diff --git a/internal/services/key_cron_service.go b/internal/keypool/cron_checker.go
similarity index 59%
rename from internal/services/key_cron_service.go
rename to internal/keypool/cron_checker.go
index 786f9d7..735601f 100644
--- a/internal/services/key_cron_service.go
+++ b/internal/keypool/cron_checker.go
@@ -1,9 +1,9 @@
-package services
+package keypool
 
 import (
 	"gpt-load/internal/config"
-	"gpt-load/internal/keypool"
 	"gpt-load/internal/models"
+	"gpt-load/internal/store"
 	"sync"
 	"time"
 
@@ -11,51 +11,51 @@ import (
 	"gorm.io/gorm"
 )
 
-// KeyCronService is responsible for periodically validating invalid keys.
-type KeyCronService struct {
+// NewCronChecker is responsible for periodically validating invalid keys.
+type CronChecker struct {
 	DB              *gorm.DB
 	SettingsManager *config.SystemSettingsManager
-	Validator       *keypool.KeyValidator
-	LeaderService   *LeaderService
+	Validator       *KeyValidator
+	LeaderLock      *store.LeaderLock
 	stopChan        chan struct{}
 	wg              sync.WaitGroup
 }
 
-// NewKeyCronService creates a new KeyCronService.
-func NewKeyCronService(
+// NewCronChecker creates a new CronChecker.
+func NewCronChecker(
 	db *gorm.DB,
 	settingsManager *config.SystemSettingsManager,
-	validator *keypool.KeyValidator,
-	leaderService *LeaderService,
-) *KeyCronService {
-	return &KeyCronService{
+	validator *KeyValidator,
+	leaderLock *store.LeaderLock,
+) *CronChecker {
+	return &CronChecker{
 		DB:              db,
 		SettingsManager: settingsManager,
 		Validator:       validator,
-		LeaderService:   leaderService,
+		LeaderLock:      leaderLock,
 		stopChan:        make(chan struct{}),
 	}
 }
 
 // Start begins the cron job execution.
-func (s *KeyCronService) Start() {
-	logrus.Debug("Starting KeyCronService...")
+func (s *CronChecker) Start() {
+	logrus.Debug("Starting CronChecker...")
 	s.wg.Add(1)
 	go s.runLoop()
 }
 
 // Stop stops the cron job.
-func (s *KeyCronService) Stop() {
-	logrus.Info("Stopping KeyCronService...")
+func (s *CronChecker) Stop() {
+	logrus.Info("Stopping CronChecker...")
 	close(s.stopChan)
 	s.wg.Wait()
-	logrus.Info("KeyCronService stopped.")
+	logrus.Info("CronChecker stopped.")
 }
 
-func (s *KeyCronService) runLoop() {
+func (s *CronChecker) runLoop() {
 	defer s.wg.Done()
 
-	if s.LeaderService.IsLeader() {
+	if s.LeaderLock.IsLeader() {
 		s.submitValidationJobs()
 	}
 
@@ -65,11 +65,11 @@ func (s *KeyCronService) runLoop() {
 	for {
 		select {
 		case <-ticker.C:
-			if s.LeaderService.IsLeader() {
-				logrus.Debug("KeyCronService: Running as leader, submitting validation jobs.")
+			if s.LeaderLock.IsLeader() {
+				logrus.Debug("CronChecker: Running as leader, submitting validation jobs.")
 				s.submitValidationJobs()
 			} else {
-				logrus.Debug("KeyCronService: Not the leader. Standing by.")
+				logrus.Debug("CronChecker: Not the leader. Standing by.")
 			}
 		case <-s.stopChan:
 			return
@@ -78,10 +78,10 @@ func (s *KeyCronService) runLoop() {
 }
 
 // submitValidationJobs finds groups whose keys need validation and validates them.
-func (s *KeyCronService) submitValidationJobs() {
+func (s *CronChecker) submitValidationJobs() {
 	var groups []models.Group
 	if err := s.DB.Find(&groups).Error; err != nil {
-		logrus.Errorf("KeyCronService: Failed to get groups: %v", err)
+		logrus.Errorf("CronChecker: Failed to get groups: %v", err)
 		return
 	}
 
@@ -97,14 +97,14 @@ func (s *KeyCronService) submitValidationJobs() {
 			var invalidKeys []models.APIKey
 			err := s.DB.Where("group_id = ? AND status = ?", group.ID, models.KeyStatusInvalid).Find(&invalidKeys).Error
 			if err != nil {
-				logrus.Errorf("KeyCronService: Failed to get invalid keys for group %s: %v", group.Name, err)
+				logrus.Errorf("CronChecker: Failed to get invalid keys for group %s: %v", group.Name, err)
 				continue
 			}
 
 			validatedCount := len(invalidKeys)
 			becameValidCount := 0
 			if validatedCount > 0 {
-				logrus.Debugf("KeyCronService: Found %d invalid keys to validate for group %s.", validatedCount, group.Name)
+				logrus.Debugf("CronChecker: Found %d invalid keys to validate for group %s.", validatedCount, group.Name)
 				for j := range invalidKeys {
 					key := &invalidKeys[j]
 					isValid, _ := s.Validator.ValidateSingleKey(key, group)
@@ -116,12 +116,12 @@ func (s *KeyCronService) submitValidationJobs() {
 			}
 
 			if err := s.DB.Model(group).Update("last_validated_at", time.Now()).Error; err != nil {
-				logrus.Errorf("KeyCronService: Failed to update last_validated_at for group %s: %v", group.Name, err)
+				logrus.Errorf("CronChecker: Failed to update last_validated_at for group %s: %v", group.Name, err)
 			}
 
 			duration := time.Since(groupProcessStart)
 			logrus.Infof(
-				"KeyCronService: Group '%s' validation finished. Total checked: %d, became valid: %d. Duration: %s.",
+				"CronChecker: Group '%s' validation finished. Total checked: %d, became valid: %d. Duration: %s.",
 				group.Name,
 				validatedCount,
 				becameValidCount,
diff --git a/internal/services/log_cleanup.go b/internal/services/log_cleanup_service.go
similarity index 92%
rename from internal/services/log_cleanup.go
rename to internal/services/log_cleanup_service.go
index 1bf7776..6c0bb6c 100644
--- a/internal/services/log_cleanup.go
+++ b/internal/services/log_cleanup_service.go
@@ -3,6 +3,7 @@ package services
 import (
 	"gpt-load/internal/config"
 	"gpt-load/internal/models"
+	"gpt-load/internal/store"
 	"time"
 
 	"github.com/sirupsen/logrus"
@@ -13,16 +14,16 @@ import (
 type LogCleanupService struct {
 	db              *gorm.DB
 	settingsManager *config.SystemSettingsManager
-	leaderService   *LeaderService
+	leaderLock      *store.LeaderLock
 	stopCh          chan struct{}
 }
 
 // NewLogCleanupService 创建新的日志清理服务
-func NewLogCleanupService(db *gorm.DB, settingsManager *config.SystemSettingsManager, leaderService *LeaderService) *LogCleanupService {
+func NewLogCleanupService(db *gorm.DB, settingsManager *config.SystemSettingsManager, leaderLock *store.LeaderLock) *LogCleanupService {
 	return &LogCleanupService{
 		db:              db,
 		settingsManager: settingsManager,
-		leaderService:   leaderService,
+		leaderLock:      leaderLock,
 		stopCh:          make(chan struct{}),
 	}
 }
@@ -59,7 +60,7 @@ func (s *LogCleanupService) run() {
 
 // cleanupExpiredLogs 清理过期的请求日志
 func (s *LogCleanupService) cleanupExpiredLogs() {
-	if !s.leaderService.IsLeader() {
+	if !s.leaderLock.IsLeader() {
 		logrus.Debug("Not the leader, skipping log cleanup.")
 		return
 	}
diff --git a/internal/services/request_log_service.go b/internal/services/request_log_service.go
index a26d965..a026372 100644
--- a/internal/services/request_log_service.go
+++ b/internal/services/request_log_service.go
@@ -27,20 +27,20 @@ type RequestLogService struct {
 	db              *gorm.DB
 	store           store.Store
 	settingsManager *config.SystemSettingsManager
-	leaderService   *LeaderService
+	leaderLock      *store.LeaderLock
 	ctx             context.Context
 	cancel          context.CancelFunc
 	ticker          *time.Ticker
 }
 
 // NewRequestLogService creates a new RequestLogService instance
-func NewRequestLogService(db *gorm.DB, store store.Store, sm *config.SystemSettingsManager, ls *LeaderService) *RequestLogService {
+func NewRequestLogService(db *gorm.DB, store store.Store, sm *config.SystemSettingsManager, ls *store.LeaderLock) *RequestLogService {
 	ctx, cancel := context.WithCancel(context.Background())
 	return &RequestLogService{
 		db:              db,
 		store:           store,
 		settingsManager: sm,
-		leaderService:   ls,
+		leaderLock:      ls,
 		ctx:             ctx,
 		cancel:          cancel,
 	}
@@ -116,7 +116,7 @@ func (s *RequestLogService) flush() {
 		return
 	}
 
-	if !s.leaderService.IsLeader() {
+	if !s.leaderLock.IsLeader() {
 		logrus.Debug("Not a leader, skipping log flush.")
 		return
 	}
diff --git a/internal/services/leader_service.go b/internal/store/leader_lock.go
similarity index 84%
rename from internal/services/leader_service.go
rename to internal/store/leader_lock.go
index 28b1d9a..f98d120 100644
--- a/internal/services/leader_service.go
+++ b/internal/store/leader_lock.go
@@ -1,4 +1,4 @@
-package services
+package store
 
 import (
 	"context"
@@ -9,8 +9,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"gpt-load/internal/store"
-
 	"github.com/sirupsen/logrus"
 )
 
@@ -36,9 +34,9 @@ else
     return 0
 end`
 
-// LeaderService provides a mechanism for electing a single leader in a cluster.
-type LeaderService struct {
-	store        store.Store
+// LeaderLock provides a mechanism for electing a single leader in a cluster.
+type LeaderLock struct {
+	store        Store
 	nodeID       string
 	isLeader     atomic.Bool
 	stopChan     chan struct{}
@@ -46,10 +44,10 @@ type LeaderService struct {
 	isSingleNode bool
 }
 
-// NewLeaderService creates a new LeaderService.
-func NewLeaderService(s store.Store) *LeaderService {
-	_, isDistributed := s.(store.LuaScripter)
-	service := &LeaderService{
+// NewLeaderLock creates a new LeaderLock.
+func NewLeaderLock(s Store) *LeaderLock {
+	_, isDistributed := s.(LuaScripter)
+	service := &LeaderLock{
 		store:        s,
 		nodeID:       generateNodeID(),
 		stopChan:     make(chan struct{}),
@@ -65,7 +63,7 @@ func NewLeaderService(s store.Store) *LeaderService {
 }
 
 // Start performs an initial leader election and starts the background leadership maintenance loop.
-func (s *LeaderService) Start() error {
+func (s *LeaderLock) Start() error {
 	if s.isSingleNode {
 		return nil
 	}
@@ -81,7 +79,7 @@ func (s *LeaderService) Start() error {
 }
 
 // Stop gracefully stops the leadership maintenance process.
-func (s *LeaderService) Stop() {
+func (s *LeaderLock) Stop() {
 	if s.isSingleNode {
 		return
 	}
@@ -96,12 +94,12 @@ func (s *LeaderService) Stop() {
 }
 
 // IsLeader returns true if the current node is the leader.
-func (s *LeaderService) IsLeader() bool {
+func (s *LeaderLock) IsLeader() bool {
 	return s.isLeader.Load()
 }
 
 // AcquireInitializingLock sets a temporary lock to indicate that initialization is in progress.
-func (s *LeaderService) AcquireInitializingLock() (bool, error) {
+func (s *LeaderLock) AcquireInitializingLock() (bool, error) {
 	if !s.IsLeader() {
 		return false, nil
 	}
@@ -110,7 +108,7 @@ func (s *LeaderService) AcquireInitializingLock() (bool, error) {
 }
 
 // ReleaseInitializingLock removes the initialization lock.
-func (s *LeaderService) ReleaseInitializingLock() {
+func (s *LeaderLock) ReleaseInitializingLock() {
 	if !s.IsLeader() {
 		return
 	}
@@ -121,7 +119,7 @@ func (s *LeaderService) ReleaseInitializingLock() {
 }
 
 // WaitForInitializationToComplete waits until the initialization lock is released.
-func (s *LeaderService) WaitForInitializationToComplete() error {
+func (s *LeaderLock) WaitForInitializationToComplete() error {
 	if s.isSingleNode || s.IsLeader() {
 		return nil
 	}
@@ -165,7 +163,7 @@ func (s *LeaderService) WaitForInitializationToComplete() error {
 }
 
 // maintainLeadershipLoop is the background process that keeps trying to acquire or renew the lock.
-func (s *LeaderService) maintainLeadershipLoop() {
+func (s *LeaderLock) maintainLeadershipLoop() {
 	defer s.wg.Done()
 	ticker := time.NewTicker(leaderRenewalInterval)
 	defer ticker.Stop()
@@ -185,7 +183,7 @@ func (s *LeaderService) maintainLeadershipLoop() {
 }
 
 // tryToBeLeader is an idempotent function that attempts to acquire or renew the lock.
-func (s *LeaderService) tryToBeLeader() error {
+func (s *LeaderLock) tryToBeLeader() error {
 	if s.isLeader.Load() {
 		err := s.renewLock()
 		if err != nil {
@@ -206,12 +204,12 @@ func (s *LeaderService) tryToBeLeader() error {
 	return nil
 }
 
-func (s *LeaderService) acquireLock() (bool, error) {
+func (s *LeaderLock) acquireLock() (bool, error) {
 	return s.store.SetNX(leaderLockKey, []byte(s.nodeID), leaderLockTTL)
 }
 
-func (s *LeaderService) renewLock() error {
-	luaStore := s.store.(store.LuaScripter)
+func (s *LeaderLock) renewLock() error {
+	luaStore := s.store.(LuaScripter)
 	ttlSeconds := int(leaderLockTTL.Seconds())
 	res, err := luaStore.Eval(renewLockScript, []string{leaderLockKey}, s.nodeID, ttlSeconds)
 	if err != nil {
@@ -223,8 +221,8 @@ func (s *LeaderService) renewLock() error {
 	return nil
 }
 
-func (s *LeaderService) releaseLock() {
-	luaStore := s.store.(store.LuaScripter)
+func (s *LeaderLock) releaseLock() {
+	luaStore := s.store.(LuaScripter)
 	if _, err := luaStore.Eval(releaseLockScript, []string{leaderLockKey}, s.nodeID); err != nil {
 		logrus.WithError(err).Error("Failed to release leader lock on shutdown.")
 	} else {