diff --git a/diagramUtils/include/dataBase.h b/diagramUtils/include/dataBase.h
index 8286f53..77b1f8c 100644
--- a/diagramUtils/include/dataBase.h
+++ b/diagramUtils/include/dataBase.h
@@ -29,7 +29,7 @@ public:
     QSqlQuery executeBatchSQL(const QStringList& sqlStatements, bool createOrDrop = false,
                               const QList<QVariantList>& paramsList = QList<QVariantList>(), bool useTranscation = false);
     static DataBase* GetInstance();
-
+    QSqlDatabase getDB();   // ✅ 线程安全入口
 public:
     bool insertPage(QString tag,QString name,QJsonObject label,QJsonObject context,QString description,int op);
     bool insertStation(int zoneId,QString name,QString description,bool isLocal,int op);
@@ -183,17 +183,13 @@ private:
     QMap<int,ComponentTypeInfo>   _componentType;       //存储系统支持的类型列表
 private:
     void initial();
-    //bool createProjectDB();
-    //void initialProjectDB();
+    bool isDbValid(QSqlDatabase& db);
     void readXML();
     static DataBase* dbInstance;
     static int      _id;
-    QSqlDatabase     db;
-    //QSqlDatabase     prodb;
     QString          m_sFileName;
     QString         _DataBaseType;
     QString         _DataBaseName;
-    //QString         _ProjectDB;             //工程模数据库名
     QString         _HostName;
     int             _Port;
     QString         _UserName;
diff --git a/diagramUtils/source/dataBase.cpp b/diagramUtils/source/dataBase.cpp
index 3f0edd0..0cda63b 100644
--- a/diagramUtils/source/dataBase.cpp
+++ b/diagramUtils/source/dataBase.cpp
@@ -10,17 +10,26 @@
 #include <QSqlDriver>
 #include <QJsonDocument>
 #include <QJsonArray>
+#include <QMutex>
+#include <QThread>
 
 DataBase* DataBase::dbInstance = nullptr;
 int DataBase::_id = 0;
 
 DataBase::DataBase()
 {
-    m_sFileName = QString("setting.xml");
+    m_sFileName = "setting.xml";
+    readXML();   // 读数据库配置
+
+    QSqlDatabase db = getDB();
+
+    if (!db.isOpen()) {
+        LOG_ERROR("DB", "Database not available");
+        return;
+    }
+
+    // ✅ 全局只执行一次的业务初始化
     initial();
-    //createProjectDB();
-    //initialProjectDB();
-    createProjectManager();
 }
 
 DataBase::~DataBase()
@@ -31,26 +40,6 @@ DataBase::~DataBase()
 
 void DataBase::initial()
 {
-    readXML();
-    if (QSqlDatabase::contains(_DataBaseName))
-        db = QSqlDatabase::database(_DataBaseName);
-    else
-        db = QSqlDatabase::addDatabase(_DataBaseType,_DataBaseName);
-
-    db.setDatabaseName(_DataBaseName);
-    db.setHostName(_HostName);
-    db.setPort(_Port);
-    // 需要改成自己的用户名和密码
-    db.setUserName(_UserName);
-    db.setPassword(_PassWord);
-
-    if (db.open()) {
-        qDebug()<<"baseDB success";
-    } else {
-        LOG_ERROR("DB", QString("Database not open"));
-    }
-    //元模
-
     getAttributeGroup();           //获取属性组信息
     getDataType();                 //获取数据类型信息
     getModelType();            //获取模型类型
@@ -59,20 +48,71 @@ void DataBase::initial()
     getModelAttribute();
     getModelAttributePublic();  //获取公共属性组
     getModelConnectivity();    //获取连接性
+
+    createProjectManager();
+}
+
+QSqlDatabase DataBase::getDB()
+{
+    QString connName =
+        QString("db_%1").arg((quintptr)QThread::currentThreadId());
+
+    QSqlDatabase db;
+
+    if (QSqlDatabase::contains(connName)) {
+        db = QSqlDatabase::database(connName);
+    } else {
+        db = QSqlDatabase::addDatabase(_DataBaseType, connName);
+        db.setDatabaseName(_DataBaseName);
+        db.setHostName(_HostName);
+        db.setPort(_Port);
+        db.setUserName(_UserName);
+        db.setPassword(_PassWord);
+    }
+
+    // ✅ 只重连，不删
+    if (!isDbValid(db)) {
+        if (db.isOpen())
+            db.close();
+
+        if (!db.open()) {
+            LOG_ERROR("DB", db.lastError().text());
+        }
+    }
+
+    return db;
+}
+
+bool DataBase::isDbValid(QSqlDatabase& db)
+{
+    if (!db.isOpen())
+        return false;
+
+    QSqlQuery query(db);
+    return query.exec("SELECT 1");
 }
 
 DataBase* DataBase::GetInstance()
 {
-    if(dbInstance == nullptr)
-    {
-        dbInstance = new DataBase();
+    static QMutex mutex;
+    static DataBase* instance = nullptr;
+
+    if (!instance) {
+        QMutexLocker locker(&mutex);
+        if (!instance) {
+            instance = new DataBase();
+        }
     }
-    return dbInstance;
+    // ✅ 在这里触发一次数据库连接检查
+    instance->getDB();
+
+    return instance;
 }
 
 QSqlQuery DataBase::executeSQL(const QString& strSQL,bool isDDL,const QVariantList& params, bool useTranscation)
 {
     //事务
+    QSqlDatabase db = getDB();
     bool transactionStarted = false;
     if(useTranscation)
     {
@@ -144,6 +184,7 @@ QSqlQuery DataBase::executeSQL(const QString& strSQL,bool isDDL,const QVariantLi
 QSqlQuery DataBase::executeBatchSQL(const QStringList& sqlStatements, bool createOrDrop,const QList<QVariantList>& paramsList, bool useTranscation)
 {
 
+    QSqlDatabase db = getDB();
     //参数数量校验
     if(!paramsList.isEmpty() && sqlStatements.size() != paramsList.size())
     {
@@ -229,6 +270,7 @@ QSqlQuery DataBase::executeBatchSQL(const QStringList& sqlStatements, bool creat
 
 bool DataBase::insertComponent(QUuid uuid,QString modelName,QString nspath,QString tag,QString name,QString description,QString grid,QString zone,QString station,int type,bool inService,int state,int status,QJsonObject connected_bus,QJsonObject label,QJsonObject context,int op)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -270,6 +312,7 @@ bool DataBase::insertComponent(QUuid uuid,QString modelName,QString nspath,QStri
 
 bool DataBase::updateComponent(QUuid uuid,QString tag,QString name,QJsonObject context,bool inService,int state,int status)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -373,6 +416,7 @@ bool DataBase::updateDynamicProperty(QUuid uuid,GroupStateValue groupValue)
 
 bool DataBase::insertPage(QString tag,QString name,QJsonObject label,QJsonObject context,QString description,int op)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -406,6 +450,7 @@ bool DataBase::insertPage(QString tag,QString name,QJsonObject label,QJsonObject
 
 bool DataBase::insertStation(int zoneId,QString name,QString description,bool isLocal,int op)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -433,6 +478,7 @@ bool DataBase::insertStation(int zoneId,QString name,QString description,bool is
 
 bool DataBase::insertGrid(QString name,QString description,int op)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -456,6 +502,7 @@ bool DataBase::insertGrid(QString name,QString description,int op)
 
 bool DataBase::insertZone(int grid_id,QString name,QString description,int op)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -480,6 +527,7 @@ bool DataBase::insertZone(int grid_id,QString name,QString description,int op)
 
 bool DataBase::insertTopologic(QUuid uuid_from,QUuid uuid_to,QJsonObject context,int flag,QString description,int op)
 {
+    QSqlDatabase db = getDB();
     QJsonDocument contextDoc(context);
     QString strContext = contextDoc.toJson(QJsonDocument::Compact);
 
@@ -761,6 +809,7 @@ bool DataBase::deleteTopologic(QUuid fromPin,QUuid toPin)
 /************************************************************/
 ComponentInfo DataBase::getComponentInfoByUuid(QString uuid)
 {
+    QSqlDatabase db = getDB();
     ComponentInfo inf;
     if(db.open())
     {
@@ -804,6 +853,7 @@ ComponentInfo DataBase::getComponentInfoByUuid(QString uuid)
 
 QList<ComponentInfo>  DataBase::getAllComponents()
 {
+    QSqlDatabase db = getDB();
     QList<ComponentInfo> lst;
     if(db.open())
     {
@@ -847,6 +897,7 @@ QList<ComponentInfo>  DataBase::getAllComponents()
 
 bool  DataBase::componentExist(QString uuid)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -874,6 +925,7 @@ bool  DataBase::componentExist(QString uuid)
 
 bool DataBase::deleteComponent(QString uuid)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -894,6 +946,7 @@ bool DataBase::deleteComponent(QString uuid)
 
 QMap<int,ComponentTypeInfo> DataBase::getAllComponentType()
 {
+    QSqlDatabase db = getDB();
     if(_componentType.empty())
     {
         QMap<int,ComponentTypeInfo> map;
@@ -932,6 +985,7 @@ QMap<int,ComponentTypeInfo> DataBase::getAllComponentType()
 
 bool DataBase::updatePage(QString tag,QString name,QJsonObject context)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -962,6 +1016,7 @@ bool DataBase::updatePage(QString tag,QString name,QJsonObject context)
 
 int  DataBase::getPageIdByName(QString name)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -993,6 +1048,7 @@ int  DataBase::getPageIdByName(QString name)
 
 QJsonObject DataBase::getPageContextByName(QString name)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -1058,6 +1114,7 @@ QList<PageInfo> DataBase::getAllPage()
 
 bool DataBase::deleteComponentById(int id)
 {
+    QSqlDatabase db = getDB();
     if(db.open())
     {
         QSqlQuery qry(db);
@@ -2561,6 +2618,7 @@ bool DataBase::deleteProjectSetting(const QString& baseModel,const QString& mode
 
 bool DataBase::createProjectManager()
 {
+    QSqlDatabase db = getDB();
     QString strSQL = R"(
             CREATE TABLE IF NOT EXISTS project_manager (
                 id SERIAL NOT NULL PRIMARY KEY,
@@ -3284,6 +3342,7 @@ bool DataBase::createDynamicTable(const QString &tableName, const QStringList &f
 
 bool DataBase::deleteProjectModel(const QString& sProject)
 {
+    QSqlDatabase db = getDB();
     QStringList lstTable;
     QString strSQL = "SELECT name FROM project_manager WHERE tag = ?";
     QVariantList params;
@@ -3459,6 +3518,7 @@ bool DataBase::deleteRecordFromManager(const QString& sProject,const QString& sG
 
 bool DataBase::modifyProjectTable(QString sTable,QMap<QString,QString> mOld,QMap<QString,QString> mNew)
 {
+    QSqlDatabase db = getDB();
     QStringList sqlStatements;
     for (auto &col : mOld.keys()) {
         if (!mNew.contains(col)) {
diff --git a/source/mainwindow.cpp b/source/mainwindow.cpp
index cbc8921..34516a2 100644
--- a/source/mainwindow.cpp
+++ b/source/mainwindow.cpp
@@ -62,7 +62,11 @@ CMainWindow::~CMainWindow()
     //if(m_pElectricElementsBox)
         //delete m_pElectricElementsBox;
     if(m_pPropertiesEditorView){
-
+        auto pView = m_pPropertiesEditorView->getQuickDetailsView();
+        if(pView){
+            pView->disconnect();
+            delete pView;
+        }
         m_pPropertiesEditorView->deleteLater();
     }
 }