diff --git a/jikimo_purchase_request_tier_validation/models/models.py b/jikimo_purchase_request_tier_validation/models/models.py
index 4d8e9b3d..0070a4c7 100644
--- a/jikimo_purchase_request_tier_validation/models/models.py
+++ b/jikimo_purchase_request_tier_validation/models/models.py
@@ -5,12 +5,12 @@ import logging
 _logger = logging.getLogger(__name__)
 
 
-class PurchaseRequestTierValidation(models.Model):
-    _name = 'purchase.request.tier.validation'
+class PurchaseRequest(models.Model):
+    _inherit = 'purchase.request'
     
 
     def _validate_tier(self, tiers=False):
-        res = super(PurchaseRequestTierValidation, self)._validate_tier(tiers)
+        res = super(PurchaseRequest, self)._validate_tier(tiers)
 
         # 检查是否所有审批都已通过
         all_approved = all(
diff --git a/jikimo_purchase_tier_validation/__manifest__.py b/jikimo_purchase_tier_validation/__manifest__.py
index 4d676d8f..ed0cecb7 100644
--- a/jikimo_purchase_tier_validation/__manifest__.py
+++ b/jikimo_purchase_tier_validation/__manifest__.py
@@ -1,14 +1,12 @@
 # -*- coding: utf-8 -*-
 {
-    'name': "机企猫 采购审批流程",
+    'name': "机企猫 采购申请审批流程",
 
     'summary': """
-        Short (1 phrase/line) summary of the module's purpose, used as
-        subtitle on modules listing or apps.openerp.com""",
+        采购申请审批流程""",
 
     'description': """
-        Long description of module's purpose
-    """,
+        采购申请审批流程""",
 
     'author': "My Company",
     'website': "https://www.yourcompany.com",