一种污水管网用高安全性窨井盖
By using the interlocking of the plug and the slot and the double fixing of the locking mechanism, the problem of easy displacement of traditional manhole covers is solved, the manhole cover is installed stably, safety hazards and maintenance costs are reduced, and the safety and functional stability of the sewage pipe network are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI SAIINS ADVANCED TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional manhole covers lack an effective fixing structure and are prone to displacement or detachment under external forces, leading to safety hazards and affecting the function of sewage pipe networks.
The manhole cover is securely installed by employing an interlocking structure of plug-in blocks and slots, combined with a double-fixing locking mechanism including a locking rod, spring, and lifting rod; and safety and functionality are improved through the design of sealing plugs and filter screens.
It effectively prevents manhole covers from being moved or opened at will, reduces the risk of safety accidents and theft, and at the same time reduces maintenance costs and ensures the normal operation of sewage pipe networks.
Smart Images
Figure CN224514278U_ABST
Abstract
Claims
1. A high safety manhole cover for sewer networks, comprising a manhole seat (1), characterized in that, Also includes: The bearing ring (2) is fixedly connected to the inner wall of the manhole seat (1); The manhole cover body (101) covers the manhole seat (1) and fits against the bearing ring (2); The bearing ring (2) is provided with a plug groove (201), and the well cover body (101) is fixedly connected with a plug block (202) corresponding to the plug groove (201). The plug block (202) is provided with a snap-fit groove (203), and the groove height of the snap-fit groove (203) is the same as the thickness of the bearing ring (2). A locking hole (204) is formed on the bearing ring (2); A locking mechanism is provided on the manhole cover body (101) and inserted into the locking hole (204).
2. A high safety well lid for sewage pipe network according to claim 1, characterized in that: The locking mechanism includes a locking rod (206) and a spring (208). A sliding groove (205) is provided inside the manhole cover body (101). The locking rod (206) is slidably connected in the sliding groove (205). The lower end of the locking rod (206) is inserted into the locking hole (204). The spring (208) is provided in the sliding groove (205). One end of the spring (208) is fixedly connected to the inner wall of the sliding groove (205), and the other end is fixedly connected to the upper end face of the locking rod (206). A lifting rod (207) is detachably connected to the locking rod (206). An opening communicating with the sliding groove (205) is provided on the upper end face of the manhole cover body (101). A handle is provided at one end of the lifting rod (207) extending out of the sliding groove (205) through the opening.
3. A high safety well lid for sewer pipe network according to claim 2, characterized in that: The upper end face of the locking rod (206) is fixedly connected to a threaded sleeve (209), and the outer wall of the lower end of the lifting rod (207) is threadedly connected to the inner wall of the threaded sleeve (209).
4. The high-safety inspection well cover for sewage pipe network according to claim 3, characterized in that: It also includes a sealing plug (210) that is inserted into an opening on the manhole cover body (101).
5. The high-safety inspection well cover for sewage pipe network according to claim 1, characterized in that: The lower end face of the manhole cover body (101) is fixedly connected to a connecting ring (3), and also includes a receiving cylinder (301). The inner wall of the receiving cylinder (301) is threadedly connected to the outer wall of the connecting ring (3). The manhole cover body (101) is provided with a drainage hole (102) that communicates with the receiving cylinder (301). A filter screen (302) is detachably connected inside the receiving cylinder (301).
6. A high safety well lid for sewer pipe network according to claim 5, characterized in that: The filter screen (302) is detachably connected to the receiving cylinder (301) by fixing bolts.