Circumferential positioning sewage treatment inspection well cover
By designing a circumferentially positioned sewage treatment manhole cover, and using a positioning plate and rib plate structure to stably connect with the top of the manhole, the problems of easy rotation of the manhole cover and prevention of backflow odor are solved, achieving stable positioning and safe drainage.
Patent Information
- Application Number
- CN202520151763.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing manhole covers are prone to rotation due to being stepped on and run over during use, resulting in poor sealing and lack of anti-odor function. In summer, rainwater can wash the manhole covers open, affecting safety.
A circumferentially positioned sewage treatment manhole cover is designed, which uses multiple positioning plates and stiffeners to stably connect with the top edge of the manhole. Combined with a tension spring and connecting rod structure, it ensures that the cover is not easy to rotate. Water passage holes and rubber pads are set on the cover to prevent gas from escaping.
It achieves stable positioning of the manhole cover, prevents impurities from entering the manhole, avoids the manhole cover being washed away, ensures safety and extends service life, and also has an anti-odor function.
Smart Images

Figure CN223738619U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of manhole cover technology, specifically relating to a circumferentially positioned sewage treatment manhole cover. Background Technology
[0002] Manholes are mainly used for municipal drainage and sewage disposal. Manhole covers are used to cover deep wells to prevent people or objects from falling in. Manhole covers have a wide range of applications, such as in green belts, sidewalks, motor vehicle lanes, docks, and alleys.
[0003] Existing manhole covers have several drawbacks in use, such as: 1. Manhole covers installed on sidewalks or motor vehicle lanes are subject to constant foot traffic and vehicle pressure, making them prone to rotation. This can lead to poor sealing at the junction of the cover and the manhole, which not only affects the lifespan of the cover but also increases the risk of various dangers. 2. Traditional manhole covers lack anti-odor features, and discarded cigarette butts can easily fall into the manhole through the opening, potentially causing an explosion. 3. In rainy summer weather, traditional manhole covers are easily washed away by water from the sewers, seriously affecting pedestrian safety.
[0004] Therefore, a manhole cover needs to be designed to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a circumferentially positioned sewage treatment manhole cover, the specific solution of which is as follows:
[0006] A circumferentially positioned sewage treatment manhole cover includes a manhole base. Multiple positioning plates are arranged circumferentially around the periphery of the manhole base. An annular positioning plate is provided on the inner wall of the manhole base. A grate is provided on the annular positioning plate. Multiple connecting rods are threaded at the top and fixed at the bottom of the connecting rods. A baffle for sealing the bottom of the manhole base is slidably provided on the multiple connecting rods. A tension spring is sleeved on the connecting rod, and both ends of the tension spring are connected to the annular positioning plate and the baffle, respectively. A cover plate is provided on the manhole base. The cover plate has multiple water passage holes and multiple stepped holes corresponding to the multiple connecting rods. The threaded sections of the connecting rods extend into the stepped holes. A connector is provided in the stepped holes and threaded to the connecting rods. The connector includes a cylindrical body threaded to the connecting rod and an internal hexagonal force-applying head fixed to the cylindrical body.
[0007] Based on the above, a stiffening plate is provided between the positioning plate and the well base.
[0008] Based on the above, the cover plate is provided with a countersunk hole, and a lifting lug is fixed inside the countersunk hole.
[0009] Based on the above, the cover plate is provided with an annular limiting groove for the well seat, and a rubber pad is arranged in the limiting groove.
[0010] The utility model discloses relative prior art has substantial characteristics and progress, specifically speaking, the utility model has the following advantages:
[0011] 1、 The structure design of the inspection well cover can ensure that sewage is normally discharged into the cellar, can also prevent impurities from entering the cellar, and can prevent gas in the cellar from overflowing when not draining.
[0012] 2、 The circumferential positioning sewage treatment inspection well cover can be stably combined with the concrete structure at the top edge of the cellar, thereby preventing the inspection well cover from rotating during use and ensuring the service life. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is the overall structure schematic diagram of the utility model.
[0014] In the drawing: 1. Well seat; 2. Positioning plate; 3. Rib plate; 4. Cover plate; 4-1. Step hole; 4-2. Water passage hole; 4-4. Counterbore; 4-5. Lifting lug; 5. Annular positioning plate; 6. Grating plate; 7. Connecting rod; 7-1. Limiting head; 8. Connecting head; 9. Baffle; 10. Tension spring; 11. Rubber pad. DETAILED DESCRIPTION
[0015] The technical scheme of the utility model will be further described in detail below through specific embodiments.
[0016] EMBODIMENT
[0017] As Figure 1As shown, the utility model provides a kind of circumferential positioning sewage treatment inspection well lid, including well seat 1, the periphery of well seat 1 is equipped with multiple positioning plate 2 along circumferential, and well seat 1 inner wall is equipped with annular positioning plate 2, be equipped with grating plate 6 on the annular positioning plate 2, and multiple connecting rods 7 are fixedly equipped with on the annular positioning plate 2, and the top end of connecting rod 7 is equipped with threaded section, and the bottom end of connecting rod 7 is equipped with limit head 7-1;Multiple connecting rods 7 are equipped with baffle 9 for plugging the bottom of well seat 1 on sliding, and tension spring 10 is equipped with on connecting rod 7, and the both ends of tension spring 10 are connected with annular positioning plate 2 and baffle 9 respectively;Well seat 1 is equipped with cover plate 4, and multiple water passing holes 4-2 are equipped on cover plate 4, and multiple step holes 4-1 corresponding to multiple connecting rods 7 are also equipped on cover plate 4, and the threaded section of connecting rod 7 extends into step hole 4-1, and connecting head 8 is equipped in step hole 4-1 and is screwed with connecting rod 7, and connecting head 8 includes the cylinder body that is screwed with connecting rod 7 and inner hexagonal force head that is fixed together with the cylinder body.
[0018] The above-mentioned baffle 9 adopts light plate, when not draining, baffle 9 is attached to the bottom of well seat 1 under the action of tension spring 10, when draining, baffle 9 is pressed down by the gravity of water flow, and water flow enters cellar.
[0019] To ensure the structural stability between positioning plate 2 and well seat 1, rib plate 3 is arranged between the above-mentioned positioning plate 2 and well seat 1.
[0020] When it is needed to clean the impurities on grating plate 6, for the convenience of lifting cover plate 4, the above-mentioned cover plate 4 is equipped with counterbore 4-4, and lug 4-5 is fixedly arranged in counterbore 4-4.
[0021] To ensure the stable cooperation between well seat 1 and cover plate 4, the above-mentioned cover plate 4 is equipped with annular limiting groove for well seat 1, and rubber pad 11 is arranged in the limiting groove.
[0022] Finally, it should be explained that: the above examples are only used to illustrate the technical scheme of the utility model, but not limit it;Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the specific implementation of the utility model can still be modified or some technical features can be replaced equivalently;Without departing from the spirit of the technical scheme of the utility model, it should be covered in the technical scheme range of the utility model claimed in the utility model.
Claims
1. A circumferentially positioned sewage treatment manhole cover characterised in that: The utility model provides a well seat (1), the periphery of well seat (1) is equipped with a plurality of positioning plate (2) along the circumference, and the inner wall of well seat (1) is equipped with annular positioning plate (5), is equipped with grating (6) on annular positioning plate (5), and a plurality of connecting rods (7) are fixedly arranged on annular positioning plate (5) and penetrate through, the top end of connecting rod (7) is equipped with threaded section, and the bottom end of connecting rod (7) is equipped with limit head (7-1), a plurality of connecting rods (7) are equipped with baffle (9) for plugging the bottom of well seat (1) and are slid on the connecting rod (7), tension spring (10) is sleeved on connecting rod (7), and both ends of tension spring (10) are connected with annular positioning plate (5) and baffle (9) respectively, cover plate (4) is equipped on well seat (1), a plurality of water passing holes (4-2) are equipped on cover plate (4), a plurality of step holes (4-1) corresponding to a plurality of connecting rods (7) are further equipped on cover plate (4), the threaded section of connecting rod (7) extends into step hole (4-1), and connecting head (8) is arranged in step hole (4-1) and is screwed with connecting rod (7), and the connecting head (8) includes the cylinder body that is screwed with connecting rod (7) and the internal hexagonal force head that is fixed together with the cylinder body.
2. The circumferentially positioned sewage treatment manhole cover of claim 1, wherein: The positioning plate (2) and the well seat (1) are provided with a rib plate (3) therebetween.
3. The circumferentially positioned sewage treatment manhole cover of claim 1, wherein: The cover plate (4) is provided with a counterbore (4-4), and a lifting lug (4-5) is fixedly arranged in the counterbore (4-4).
4. The circumferentially positioned sewage treatment manhole cover of claim 1, wherein: The cover plate (4) is provided with an annular limiting groove for the well seat (1), and a rubber pad (11) is arranged in the limiting groove.