Durable pressure-resistant inspection well cover
By designing a split-type replacement and elastic buffer structure for manhole covers, the problems of deformation and high replacement costs of plastic manhole covers under long-term pressure have been solved, achieving both durability and economical replacement of manhole covers.
Patent Information
- Application Number
- CN202421044277.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Plastic manhole covers are prone to deformation under prolonged and strong pressure, have poor pressure resistance, and are costly to replace.
A durable and pressure-resistant manhole cover was designed, which adopts a split replacement structure and an elastic buffer structure. It includes a pressure-resistant cover body, a manhole cover seat, a telescopic slide bar, a buffer groove, a buffer pad, a support slide arm, a support slider, and a buffer spring. The combination of the buffer pad and the buffer spring provides elastic buffering and reduces the downward displacement of the manhole cover seat.
It improves the hidden danger of manhole covers deforming under long-term pressure, reduces the risk of manhole covers falling into the manhole, simplifies the replacement process, and reduces replacement costs.
Smart Images
Figure CN222314074U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of manhole covers, and in particular relates to a durable and pressure-resistant manhole cover. Background Art
[0002] There will be many underground pipelines in urban construction, such as sewers, underground gas pipelines, tap water pipelines, power pipelines, communication pipelines, national defense pipelines, etc. These pipelines must have an exit to the ground at every section. The section from the pipeline to the ground is called a manhole. The manhole mouth needs a lid to cover the manhole, called a manhole cover. Manhole covers are usually made of reinforced cement, metal, plastic and other materials, and the shapes are mainly round and square. On the manhole cover, the purpose of the underground pipeline, the maintenance unit, telephone number and other information are generally indicated. Due to the defects of heavy weight, difficulty in engraving information and high cost investment of cement and metal manhole covers, many places will use plastic manhole covers.
[0003] At present, plastic manhole covers are prone to deformation when subjected to long-term and continuous strong pressure, and the poor compressive resistance of plastic manhole covers in buffering pressure can easily aggravate deformation. If the deformation is too large, there is a risk of sinking into or even falling into the manhole. In addition, when the surface of the plastic manhole cover is worn or the retained information is changed, it needs to be replaced as a whole. This type of overall replacement without affecting the performance has the disadvantage of high replacement cost.
[0004] Therefore, there is a need for a durable, pressure-resistant manhole cover to solve the problems in the prior art of poor pressure resistance of plastic manhole covers that easily aggravate deformation and have high overall replacement costs. Utility Model Content
[0005] The purpose of the utility model is to provide a durable and pressure-resistant manhole cover to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a durable pressure-resistant manhole cover, comprising a pressure-resistant cover body, a split replacement structure is arranged below the pressure-resistant cover body, the split replacement structure comprises a manhole cover seat, a telescopic slide rod and a buffer circular groove, the buffer circular groove is opened at the upper end surface of the manhole cover seat, the manhole cover seat is arranged in the buffer circular groove of the manhole cover seat of the pressure-resistant cover body, the telescopic slide rod is adhesively fixed at the center of the lower end surface of the pressure-resistant cover body, an elastic buffer structure is arranged below the pressure-resistant cover body, the elastic buffer structure comprises a buffer rubber pad, a support slide arm, a support slider and a buffer spring, the buffer rubber pad is arranged in the buffer circular groove of the manhole cover seat, the support slide arm is adhesively fixed on the lower end surface of the pressure-resistant cover body, the support slider is fixed on the side surface of the support slide arm, and the buffer spring is sleeved on the outside of the telescopic slide rod.
[0007] It should be noted in the solution that an assembly groove is provided inside the manhole cover seat, the assembly groove is communicated with the buffer circular groove, and a clearance opening is provided at the center of the upper surface of the buffer rubber pad.
[0008] It is further worth mentioning that a guide slot is provided on the wall of the manhole cover seat where the assembly slot is located, and the support sliding block is slidably connected in the guide slot.
[0009] It should be further explained that the buffer rubber pad is arranged between the pressure-resistant cover body and the inner bottom wall where the buffer circular groove is located, and the buffer rubber pad is glued and fixed to the lower end surface of the pressure-resistant cover body.
[0010] As a preferred embodiment, a telescopic center hole is opened at the center of the lower end surface of the cellar manhole cover seat, a guide positioning hole is opened at the lower end surface of the cellar manhole cover seat, the telescopic slide rod is slidably connected to the telescopic center hole of the cellar manhole cover seat, and the supporting slide arm is slidably connected to the guide positioning hole of the cellar manhole cover seat.
[0011] As a preferred embodiment, the lower ends of the supporting slide arm and the telescopic slide rod are fixed with a combined fixing seat, and the buffer spring is arranged between the pressure-resistant cover body and the inner bottom wall of the pit cover seat.
[0012] Compared with the prior art, the durable pressure-resistant manhole cover provided by the utility model has at least the following beneficial effects:
[0013] ⑴ Through the setting of the split replacement structure, the manhole cover structure formed by the manhole cover seat and the pressure-resistant cover body is mainly composed of the pressure-resistant cover body exposed on the road surface over a large area, thereby improving the hidden danger of the traditional manhole cover being deformed under large-area pressure and easily falling into the manhole, and the split gluing and fixing method of the pressure-resistant cover body and the manhole cover seat is suitable for application scenarios where appearance problems such as surface scratches can be easily replaced with cost-saving measures.
[0014] ⑵ Through the setting of the elastic buffer structure, after the pressure-resistant cover body is subjected to pressure, the buffering cooperation of the buffer rubber pad, the supporting slider and the buffer spring can reduce the downward movement amplitude of the pressure-resistant cover body on the manhole cover seat while providing the buffering effect of the pressure-resistant cover body, thereby providing the pressure-resistant cover body with elastic buffering performance, which can further enhance the pressure resistance of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;
[0016] Figure 2 This is a three-dimensional diagram of the cross-sectional structure of the pit cover seat of the utility model;
[0017] Figure 3 This is a three-dimensional diagram of the buffer circular groove structure of the utility model;
[0018] Figure 4 It is a three-dimensional diagram of the pressure-resistant cover structure of the utility model.
[0019] In the figure: 1. manhole cover seat; 2. pressure-resistant cover body; 3. buffer circular groove; 4. buffer rubber pad; 5. clearance opening; 6. supporting sliding arm; 7. supporting sliding block; 8. telescopic sliding rod; 9. buffer spring; 10. combined fixing seat; 11. assembly groove; 12. guide sliding groove; 13. telescopic center hole; 14. guide positioning hole. DETAILED DESCRIPTION
[0020] The present invention will be further described below in conjunction with the embodiments.
[0021] See also Figure 1-4 The utility model provides a durable pressure-resistant manhole cover, including a pressure-resistant cover body 2, a split replacement structure is arranged below the pressure-resistant cover body 2, the split replacement structure includes a manhole cover seat 1, a telescopic slide rod 8 and a buffer circular groove 3, the buffer circular groove 3 is opened at the upper end surface of the manhole cover seat 1, the manhole cover seat 1 is arranged in the buffer circular groove 3 of the manhole cover seat 1 of the pressure-resistant cover body 2, the telescopic slide rod 8 is glued and fixed at the center of the lower end surface of the pressure-resistant cover body 2, and an elastic buffer structure is arranged below the pressure-resistant cover body 2, the elastic buffer structure includes a buffer rubber pad 4, a support slide arm 6, a support slider 7 and a buffer spring 9, the buffer rubber pad 4 is arranged in the buffer circular groove 3 of the manhole cover seat 1, the support slide arm 6 is glued and fixed on the lower end surface of the pressure-resistant cover body 2, the support slider 7 is fixed on the side surface of the support slide arm 6, and the buffer spring 9 is sleeved on the outside of the telescopic slide rod 8.
[0022] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that an assembly groove 11 is opened inside the pit cover seat 1, the assembly groove 11 is connected with the buffer circular groove 3, and a clearance opening 5 is opened at the center of the upper surface of the buffer rubber pad 4.
[0023] Further as Figure 3 As shown, it is worth explaining in detail that a guide slot 12 is provided on the wall of the manhole cover seat 1 where the assembly slot 11 is located, and the support sliding block 7 is slidably connected in the guide slot 12 .
[0024] This solution has the following working process: before use, the pressure-resistant cover body 2 with the buffer rubber pad 4 is glued to the upper ends of the supporting sliding arm 6 and the telescopic sliding rod 8 by glue, and then the combination of the pressure-resistant cover body 2 and the pit cover seat 1 is placed at the pit mouth. When in use, the pit cover structure formed by the pit cover seat 1 and the pressure-resistant cover body 2 is mainly composed of the pressure-resistant cover body 2 exposed to the road surface over a large area, thereby improving the hidden danger of traditional pit covers being easily fallen into the pit due to large-area compression deformation, and the split-type gluing and fixing method of the pressure-resistant cover body 2 and the pit cover seat 1 is suitable for application scenarios in which appearance problems such as surface scratches can be easily replaced with cost-saving methods.
[0025] According to the above working process, it can be known that the manhole cover structure formed by the manhole cover seat 1 and the pressure-resistant cover body 2 is mainly composed of the pressure-resistant cover body 2 exposed on the road surface with a large area, thereby improving the hidden danger of traditional manhole covers being deformed under large-area pressure and easily falling into the manhole, and the split-type gluing and fixing method of the pressure-resistant cover body 2 and the manhole cover seat 1 is suitable for application scenarios where appearance problems such as surface scratches can be easily and cost-effectively replaced.
[0026] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth explaining in detail that the buffer rubber pad 4 is arranged between the pressure-resistant cover body 2 and the inner bottom wall where the buffer circular groove 3 is located, and the buffer rubber pad 4 is glued and fixed on the lower end surface of the pressure-resistant cover body 2.
[0027] Further as Figure 4 As shown, it is worth explaining in detail that a telescopic center hole 13 is provided at the center of the lower end surface of the pit cover seat 1, and a guide positioning hole 14 is provided at the lower end surface of the pit cover seat 1. The telescopic slide rod 8 is slidably connected to the telescopic center hole 13 of the pit cover seat 1, and the supporting slide arm 6 is slidably connected to the guide positioning hole 14 of the pit cover seat 1. During use, after the pressure-resistant cover body 2 is subjected to pressure, it will squeeze the elastic buffer rubber pad 4 to pre-buffer the pressure. In the process that the telescopic slide rod 8 and the supporting slide arm 6 move downward with the pressure-resistant cover body 2, the supporting slider 7 slides along the guide slide groove 12 to extend the buffering pressure and guide the buffering direction, and the elastic force of the buffer spring 9 acting on the pressure-resistant cover body 2 further buffers the downward pressure of the pressure-resistant cover body 2. Through the buffering cooperation of the buffer rubber pad 4, the support slider 7 and the buffer spring 9, the downward movement amplitude of the pressure-resistant cover body 2 on the pit cover seat 1 can be reduced while providing the buffering effect of the pressure-resistant cover body 2. Providing elastic buffering performance to the pressure-resistant cover body 2 can further enhance the pressure resistance of the pit cover.
[0028] Further as Figure 1 As shown, it is worth explaining in detail that the lower ends of the supporting slide arm 6 and the telescopic slide rod 8 are fixed with a combined fixing seat 10, and the buffer spring 9 is arranged between the pressure-resistant cover body 2 and the inner bottom wall of the pit cover seat 1.
[0029] In summary: the manhole cover structure formed by the manhole cover seat 1 and the pressure-resistant cover body 2 is mainly composed of the pressure-resistant cover body 2 exposed on the road surface with a large area, thereby improving the hidden danger of traditional manhole covers being deformed under large-area pressure and easily falling into the manhole, and the split-type gluing and fixing method of the pressure-resistant cover body 2 and the manhole cover seat 1 is suitable for application scenarios where appearance problems such as surface scratches can be easily and cost-effectively replaced; after the pressure-resistant cover body 2 is subjected to pressure, the buffering cooperation of the buffering rubber pad 4, the supporting slider 7 and the buffering spring 9 can reduce the downward movement amplitude of the pressure-resistant cover body 2 on the manhole cover seat 1 while providing the buffering effect of the pressure-resistant cover body 2, and providing the pressure-resistant cover body 2 with elastic buffering performance can further enhance the pressure resistance of the manhole cover.
[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A durable pressure-resistant manhole cover, comprising a pressure-resistant cover body (2), characterized in that: A split replacement structure is arranged below the pressure-resistant cover body (2), and the split replacement structure comprises a pit cover seat (1), a telescopic slide rod (8) and a buffer circular groove (3), wherein the buffer circular groove (3) is arranged at the upper end surface of the pit cover seat (1), and the pit cover seat (1) is arranged in the buffer circular groove (3) of the pit cover seat (1) of the pressure-resistant cover body (2), and the telescopic slide rod (8) is glued and fixed at the center of the lower end surface of the pressure-resistant cover body (2). An elastic buffer structure is arranged at the bottom, and the elastic buffer structure comprises a buffer rubber pad (4), a support slide arm (6), a support slider (7) and a buffer spring (9). The buffer rubber pad (4) is arranged in the buffer circular groove (3) of the pit cover seat (1), the support slide arm (6) is glued and fixed on the lower end surface of the pressure-resistant cover body (2), the support slider (7) is fixed on the side surface of the support slide arm (6), and the buffer spring (9) is sleeved on the outside of the telescopic slide rod (8).
2. The durable pressure-resistant manhole cover according to claim 1, characterized in that: The interior of the pit cover seat (1) is provided with an assembly groove (11), the assembly groove (11) is connected with the buffer circular groove (3), and a clearance opening (5) is provided at the center of the upper surface of the buffer rubber pad (4).
3. The durable pressure-resistant manhole cover according to claim 2, characterized in that: The cellar manhole cover seat (1) is provided with a guide slide groove (12) on the wall where the assembly groove (11) is located, and the support sliding block (7) is slidably connected in the guide slide groove (12).
4. The durable pressure-resistant manhole cover according to claim 3, characterized in that: The buffer rubber pad (4) is arranged between the pressure-resistant cover body (2) and the inner bottom wall where the buffer circular groove (3) is located, and the buffer rubber pad (4) is glued and fixed to the lower end surface of the pressure-resistant cover body (2).
5. The durable pressure-resistant manhole cover according to claim 4, characterized in that: A telescopic center hole (13) is provided at the center of the lower end surface of the cellar cover seat (1), a guide positioning hole (14) is provided at the lower end surface of the cellar cover seat (1), the telescopic slide rod (8) is slidably connected to the telescopic center hole (13) of the cellar cover seat (1), and the supporting slide arm (6) is slidably connected to the guide positioning hole (14) of the cellar cover seat (1).
6. The durable pressure-resistant manhole cover according to claim 5, characterized in that: The lower ends of the supporting sliding arm (6) and the telescopic sliding rod (8) are both fixed with a combined fixing seat (10), and the buffer spring (9) is arranged between the pressure-resistant cover body (2) and the inner bottom wall of the pit cover seat (1).