diff --git a/chassis/db_model.py b/chassis/db_model.py
index 2cda20f..a03294a 100644
--- a/chassis/db_model.py
+++ b/chassis/db_model.py
@@ -1,4 +1,5 @@
 from sqlalchemy import Column, DateTime, Boolean, func
+from sqlalchemy.orm import Query
 from sqlalchemy.ext.declarative import declarative_base
 from datetime import datetime
 
@@ -23,6 +24,13 @@ class BaseCrud(BaseModel):
             return session.query(cls).filter().filter_by(**kwargs).first()
         return session.query(cls).filter().filter_by(**kwargs).offset(start).limit(count).all()
 
+    @classmethod
+    def filtered_query(cls, session, filter_args=None, filter_kwargs=None) -> Query:
+        if filter_args:
+            return session.query(cls).filter(*filter_args).filter_by(**filter_kwargs)
+        else:
+            return session.query(cls).filter().filter_by(**filter_kwargs)
+
     # 增
     @classmethod
     def create(cls, session, **kwargs):
@@ -45,10 +53,10 @@ class BaseCrud(BaseModel):
         return self
 
 
-# 提供软删除，及创建时间，更新时间信息的crud model
-
-
 class InfoCrud(BaseModel):
+    """
+    提供软删除，及创建时间，更新时间信息的crud model
+    """
 
     __abstract__ = True
 
@@ -80,6 +88,13 @@ class InfoCrud(BaseModel):
             return session.query(cls).filter().filter_by(**kwargs).first()
         return session.query(cls).filter().filter_by(**kwargs).offset(start).limit(count).all()
 
+    @classmethod
+    def filtered_query(cls, session, filter_args=None, filter_kwargs=None) -> Query:
+        if filter_args:
+            return session.query(cls).filter(*filter_args).filter_by(**filter_kwargs)
+        else:
+            return session.query(cls).filter().filter_by(**filter_kwargs)
+
     # 增
     @classmethod
     def create(cls, session, **kwargs):