Protection mechanism of pit inspection cover

Abstract

The utility model discloses a protection mechanism of a pit inspection cover, and relates to the technical field of pit inspection covers, the protection mechanism comprises a pit inspection cover body, a pit frame and a protection mechanism, the outer side face of the pit inspection cover body is fixedly connected with a lap joint plate, the inner side wall of the pit frame is fixedly connected with a stress plate, and the lower surface of the lap joint plate is attached to the upper surface of the stress plate; a water flowing through hole is formed in the corner of the upper surface of the pit inspection cover body, a groove is formed in the upper surface, close to the water flowing through hole, of the pit inspection cover body, and a threaded through hole is formed in the inner bottom surface of the groove; the protection mechanism comprises a rotating block, the rotating block is arranged in the groove, the lower surface of the rotating block is fixedly connected with a threaded column, and the end, away from the rotating block, of the threaded column penetrates through the threaded through hole and then is fixedly connected with a clamping rod. Through the matching of the structure, the pit inspection cover body can be prevented from being upwards burst open by the pressure generated by water blocked in a sewer line to generate displacement, and the protection effect on the pit inspection cover body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of a manhole inspection cover, in particular to a protection mechanism for a manhole inspection cover. Background Art

[0002] A manhole inspection cover, also commonly known as a manhole cover or inspection manhole cover, is a cover used to close underground roads, drainage systems and other manholes. It is made of a variety of materials such as metal, concrete, and composite materials to protect the manhole from external damage, prevent people and vehicles from falling into the well, and prevent foreign objects from entering the drainage system.

[0003] Manhole covers are widely used in public places such as urban roads, sidewalks, and parking lots, and play an important role in safety protection. According to their uses, manhole covers can be divided into drainage inspection wells, water supply inspection wells, garden inspection wells, natural gas inspection wells, tap water inspection wells, and communication inspection wells. In addition, they can be further classified according to their appearance and material. For example, the shapes include round, square, rectangular, etc.; the materials include cast iron, steel, composite materials, cement, plastic, and stone.

[0004] The utility model with announcement number CN217710860U discloses a manhole cover with an inspection cover, including a main cover, the main cover body including a first well ring and a main cover body, the first well ring is made of metal material, the main cover body is formed by casting concrete and is arranged in the first well ring; a sub-cover, the sub-cover includes a second well ring and a sub-cover body, the second well ring is made of metal material, the second well ring and the main cover body are cast as one body, the sub-cover body is die-casted by mixing resin and steel fiber, and the sub-cover body is rotatably connected in the second well ring.

[0005] In the process of implementing this application, it was found that the technology has the following problems: the manhole cover in the above patent document does not have a corresponding fixed structure, and is simply pressed near the manhole opening by its own weight. When encountering heavy rain, if the sewer pipe is blocked, a large amount of rainwater will gather and generate huge pressure. This pressure may break the manhole cover and cause it to move. Pedestrians and vehicles may fall into it, and the protection effect on the manhole cover is poor.

[0006] For this reason, a protective mechanism for a shaft inspection cover is proposed. Utility Model Content

[0007] The purpose of the utility model is to prevent the main body of the manhole inspection cover from being blocked by the pressure generated by water in the sewer pipe and being displaced upward, thereby improving the protection effect of the main body of the manhole inspection cover. The present application provides a protection mechanism for the manhole inspection cover.

[0008] The technical solution adopted by the utility model is as follows:

[0009] A protection mechanism for a manhole inspection cover, comprising a manhole inspection cover body, a manhole frame and a protection mechanism, wherein a lap plate is fixedly connected to the outer side of the manhole inspection cover body, a force-bearing plate is fixedly connected to the inner side wall of the manhole frame, the lower surface of the lap plate is in contact with the upper surface of the force-bearing plate, a water-passing through hole is provided at a corner of the upper surface of the manhole inspection cover body, a groove is provided on the upper surface of the manhole inspection cover body near the water-passing through hole, and a threaded through hole is provided on the inner bottom surface of the groove;

[0010] The protection mechanism includes a rotating block, which is arranged inside the groove. A threaded column is fixedly connected to the lower surface of the rotating block, and an end of the threaded column away from the rotating block passes through the threaded through hole and is fixedly connected to a clamping rod.

[0011] Furthermore, a through groove is provided in the middle of the upper surface of the manhole inspection cover body.

[0012] Furthermore, a fixing plate is fixedly connected to the lower surface of the manhole inspection cover body close to the through groove.

[0013] Furthermore, the outer surface of the rotating block is rotatably connected to the inner surface of the groove, and the outer surface of the threaded column is threadedly connected to the inner surface of the threaded through hole.

[0014] Furthermore, one end of the clamping rod away from the threaded column extends to just below the force-bearing plate.

[0015] Furthermore, a plum blossom groove is provided on the upper surface of the rotating block.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] In the utility model, when installing the main body of the manhole inspection cover, the manhole frame can be first fixed on the manhole opening, and then the rotating block can be rotated to make the threaded column drive the clamping rod to rotate, until the end of the clamping rod away from the threaded column rotates to a position close to the center of the main body of the manhole inspection cover, and then the lap plate of the main body of the manhole inspection cover is placed along the inner wall of the manhole frame until the lower surface of the lap plate abuts against the upper surface of the force-bearing plate, and then the rotating block is continued to be rotated to make the threaded column drive the clamping rod to rotate, until the end of the clamping rod away from the threaded column rotates to just below the force-bearing plate, at which time the force-bearing plate can be clamped by the force-bearing plate from below; through the cooperation of the above structure, the main body of the manhole inspection cover can be prevented from being blocked by the pressure generated by the water in the sewer pipe and being pushed upward and displaced, thereby improving the protection effect of the main body of the manhole inspection cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the well frame in the utility model;

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] Figure 4 It is a cross-sectional view of the main body of the yin manhole inspection cover in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the protection mechanism in the utility model.

[0023] Markings in the figure: 1-main body of the well inspection cover, 2-well frame, 3-protection mechanism, 11-lap plate, 12-water through hole, 13-through groove, 14-fixed plate, 15-groove, 16-threaded through hole, 21-force plate, 31-rotating block, 32-threaded column, 33-clamp rod, 34-plum blossom groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0025] Reference Figure 1-Figure 5 A protective mechanism for a shaft inspection cover includes a shaft inspection cover body 1, a shaft frame 2 and a protective mechanism 3. The outer side surface of the shaft inspection cover body 1 is fixedly connected with a lap plate 11, and the inner side wall of the shaft frame 2 is fixedly connected with a force-bearing plate 21. The lower surface of the lap plate 11 is in contact with the upper surface of the force-bearing plate 21. Specifically, when installing the shaft inspection cover body 1, the shaft frame 2 can be fixedly installed on the shaft opening first.

[0026] Reference Figure 1-Figure 5A water through hole 12 is provided at the corner of the upper surface of the vagina inspection cover body 1, a groove 15 is provided on the upper surface of the vagina inspection cover body 1 near the water through hole 12, and a threaded through hole 16 is provided on the inner bottom surface of the groove 15; the protection mechanism 3 includes a rotating block 31, the rotating block 31 is arranged inside the groove 15, and a threaded column 32 is fixedly connected to the lower surface of the rotating block 31, and the end of the threaded column 32 away from the rotating block 31 passes through the threaded through hole 16 and is fixedly connected to a clamping rod 33, and the end of the clamping rod 33 away from the threaded column 32 extends to the bottom of the force plate 21, and the outer surface of the rotating block 31 is rotatably connected to the inner surface of the groove 15, and the outer surface of the threaded column 32 is threadedly connected to the inner surface of the threaded through hole 16; specifically, the rotating block 31 is then rotated to make The threaded column 32 drives the clamping rod 33 to rotate until the end of the clamping rod 33 away from the threaded column 32 rotates to a position close to the center of the manhole inspection cover body 1, and then the lap plate 11 of the manhole inspection cover body 1 is placed along the inner wall of the manhole frame 2 until the lower surface of the lap plate 11 abuts against the upper surface of the force-bearing plate 21, and then the rotating block 31 continues to be rotated to make the threaded column 32 drive the clamping rod 33 to rotate until the end of the clamping rod 33 away from the threaded column 32 rotates to directly below the force-bearing plate 21, at this time the force-bearing plate 21 can be clamped by the force-bearing plate 21 from below; through the cooperation of the above structure, the manhole inspection cover body 1 can be prevented from being blocked in the sewer pipe and being displaced by the pressure generated by the water upward, thereby improving the protection effect of the manhole inspection cover body 1.

[0027] Reference Figure 1-Figure 5 A through groove 13 is provided in the middle of the upper surface of the main body 1 of the manhole inspection cover, and a fixing plate 14 is fixedly connected to the lower surface of the main body 1 of the manhole inspection cover near the through groove 13, and a plum blossom groove 34 is provided on the upper surface of the rotating block 31; specifically, when the staff needs to open the main body 1 of the manhole inspection cover, a screwdriver can be inserted into the plum blossom groove 34 to drive the rotating block 31 to rotate, and the rotating block 31 will drive the clamping rod 33 to rotate through the threaded column 32, so that the end of the clamping rod 33 away from the threaded column 32 is rotated to a position close to the center of the main body 1 of the manhole inspection cover, and then the staff can use the manhole cover hook to pass through the through groove 13 and rotate the hook to make the hook hook the fixing plate 14, so as to hook up the main body 1 of the manhole inspection cover, and the staff can inspect or operate inside the manhole.

[0028] The implementation principle of the protection mechanism embodiment of the manhole inspection cover of the present application is:

[0029] When installing the manhole inspection cover body 1, you can first fix the manhole frame 2 on the manhole opening, then rotate the rotating block 31 to make the threaded column 32 drive the clamping rod 33 to rotate, until the end of the clamping rod 33 away from the threaded column 32 rotates to a position close to the center of the manhole inspection cover body 1, and then place the lap plate 11 of the manhole inspection cover body 1 along the inner wall of the manhole frame 2 until the lower surface of the lap plate 11 abuts against the upper surface of the force-bearing plate 21, and then continue to rotate the rotating block 31 to make the threaded column 32 drive the clamping rod 33 to rotate, until the end of the clamping rod 33 away from the threaded column 32 rotates to directly below the force-bearing plate 21, at this time the force-bearing plate 21 can be clamped by the force-bearing plate 21 from below; through the cooperation of the above structure, the manhole inspection cover body 1 can be prevented from being blocked in the sewer pipe and being displaced by the pressure generated by the water upward, thereby improving the protection effect of the manhole inspection cover body 1.

[0030] On the other hand, when the staff needs to open the manhole inspection cover body 1, they can insert a screwdriver into the hexagonal slot 34 to drive the rotating block 31 to rotate. The rotating block 31 will drive the clamping rod 33 to rotate through the threaded column 32, so that the end of the clamping rod 33 away from the threaded column 32 is rotated to a position close to the center of the manhole inspection cover body 1. Then the staff can use the manhole cover hook to pass through the through slot 13 and rotate the hook to hook the fixing plate 14, so as to hook up the manhole inspection cover body 1, and the staff can inspect or operate inside the manhole.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A protection mechanism for a manhole inspection cover, comprising a manhole inspection cover body (1), a manhole frame (2) and a protection mechanism (3), characterized in that: The outer side surface of the inner well inspection cover body (1) is fixedly connected to a lap plate (11), the inner side wall of the well frame (2) is fixedly connected to a force-bearing plate (21), the lower surface of the lap plate (11) is in contact with the upper surface of the force-bearing plate (21), a water-passing through hole (12) is provided at a corner of the upper surface of the inner well inspection cover body (1), a groove (15) is provided on the upper surface of the inner well inspection cover body (1) near the water-passing through hole (12), and a threaded through hole (16) is provided on the inner bottom surface of the groove (15); The protection mechanism (3) comprises a rotating block (31), the rotating block (31) being arranged inside the groove (15), a threaded column (32) being fixedly connected to the lower surface of the rotating block (31), and an end of the threaded column (32) away from the rotating block (31) passing through the threaded through hole (16) and then fixedly connected to a clamping rod (33).

2. A protective mechanism for a manhole inspection cover as claimed in claim 1, characterized in that: A through groove (13) is provided in the middle of the upper surface of the manhole inspection cover body (1).

3. A protective mechanism for a manhole inspection cover as claimed in claim 2, characterized in that: A fixing plate (14) is fixedly connected to the lower surface of the manhole inspection cover body (1) close to the through groove (13).

4. The protective mechanism for a manhole inspection cover according to claim 1, characterized in that: The outer surface of the rotating block (31) is rotatably connected to the inner surface of the groove (15), and the outer surface of the threaded column (32) is threadably connected to the inner surface of the threaded through hole (16).

5. The protective mechanism for a manhole inspection cover according to claim 1, characterized in that: One end of the clamping rod (33) away from the threaded column (32) extends to just below the force-bearing plate (21).

6. The protective mechanism for a manhole inspection cover according to claim 1, characterized in that: A plum blossom groove (34) is provided on the upper surface of the rotating block (31).

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