Manhole
By setting sliding strips and hooks on the manhole cover and body, the existing manhole anti-fall net fixing method causes the hook to protrude and increase personal safety risks, and the safety concealment of the hook and the correct installation of the fall net are achieved.
Patent Information
- Application Number
- CN202421526339.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-29
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-29
AI Technical Summary
The anti-fall net fixing method of the existing manhole entrance causes the hook to protrude, increasing the risk of people being scratched when entering the manhole.
A manhole is designed, and its manhole cover and manhole body combine the structure of sliding strips and hooks. The movement of the sliding strips controls the exposure and concealment of the hooks, ensuring that the hooks are exposed when needed to install anti-fall nets, and the hooks are hidden when not needed to avoid contact with people.
It effectively avoids the risk of people being scratched by hooks when entering the manhole, improves safety, and ensures the correct installation of the anti-fall net.
Smart Images
Figure CN222745116U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of municipal road construction, and more specifically, to a manhole. Background Art
[0002] Manholes are an indispensable part of the city's underground pipeline system. They are used to transfer and control various underground pipelines, such as public water supply, sewage channels, telephone lines, fiber optic networks, etc. The cross-sectional shapes of existing manhole openings are also different, some are rectangular and some are circular.
[0003] In order to prevent people from falling into the manhole, construction workers will install a fall-proof net at the manhole mouth to ensure people's safety. The existing anti-fall net is fixed by fixing a number of hooks on the inner wall of the manhole, and the hooks are arranged close to the wellhead, and then the anti-fall net is hung on each hook. However, the hooks protrude from the inner wall of the manhole and the number of hooks arranged is large, which leads to a greater risk of people being scratched by the hooks when they need to enter the manhole.
[0004] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a manhole.
[0006] The above technical purpose of the utility model is achieved through the following technical scheme: a manhole, including a manhole body and a manhole cover, a manhole groove is arranged on the manhole body, a rectangular groove connected to the manhole groove is opened on the top surface of the manhole body, and the rectangular groove is used to be embedded in the manhole cover, and sliding grooves are opened on the four inner walls of the manhole groove, and a sliding bar is slidably connected in the sliding groove, and a plurality of hooks are fixedly connected to one side of the sliding bar, and the plurality of hooks can all completely enter the sliding groove.
[0007] The utility model is further configured as follows: a shifting groove connected to the sliding groove is provided on the bottom of the rectangular groove, and a shifting block fixedly connected to the top surface of the sliding bar is provided in the shifting groove.
[0008] The utility model is further configured as follows: four card slots 1 are opened on one side of the manhole cover, and when the four shifting blocks are all inserted into the card slots 1, all the hooks are exposed outside the sliding slots.
[0009] The utility model is further configured as follows: the manhole cover includes an outer frame and a rectangular block located in the center of the outer frame, the four card slots 1 are all located on the outer frame, four card slots 2 are opened on the side of the outer frame facing away from the card slots 1, and when the four shift blocks are all inserted into the card slots 2, all the hooks are located in the sliding grooves.
[0010] The utility model is further configured as follows: an inner edge frame is arranged on the inner peripheral wall of the outer frame, one side of the inner edge frame is flush with the side of the outer frame where the card slot is arranged, and the inner edge frame is used to support the rectangular block.
[0011] The utility model is further configured as follows: the inner peripheral wall of the outer frame is flush with the inner peripheral wall of the manhole groove.
[0012] The utility model is further configured as follows: a plurality of through holes are provided on the rectangular block.
[0013] To sum up, the utility model has the following beneficial effects: when people need to install the anti-fall net, they slide the four sliding bars toward the rectangular groove to the limit position, so that the hooks on the four sliding bars are exposed outside the sliding groove, and then hang the outer edge of the anti-fall net on each hook; when people need to enter the manhole groove, they slide the four sliding bars back to the manhole groove, so that all the hooks are located in the sliding groove. This arrangement makes it difficult for the hooks to contact people when people enter the manhole groove, thereby ensuring people's safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the manhole body in the utility model;
[0015] Figure 2 A partial cross-sectional view of the utility model Figure 1 ;
[0016] Figure 3 A partial cross-sectional view of the utility model Figure 2 .
[0017] In the figure: 1, manhole groove; 2, rectangular groove; 3, sliding groove; 4, sliding bar; 5, hook; 6, pull groove; 7, pull block; 8, card slot one; 9, outer frame; 10, rectangular block; 11, card slot two; 12, inner edge frame; 13, through hole. DETAILED DESCRIPTION
[0018] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.
[0019] Manholes, such as Figure 1 and Figure 2As shown, the manhole body and the manhole cover are provided with a manhole groove 1, and a rectangular groove 2 connected to the manhole groove 1 is provided on the top surface of the manhole body. The rectangular groove 2 is used to be embedded in the manhole cover, and sliding grooves 3 are provided on the four inner walls of the manhole groove 1. A sliding bar 4 is slidably connected in the sliding groove 3. A plurality of hooks 5 are fixedly connected to the side of the sliding bar 4 facing the manhole groove 1. The plurality of hooks 5 are arranged in a linear array along the length direction of the sliding bar 4. The plurality of hooks 5 can fully enter the sliding groove 3. When the anti-fall net needs to be installed, people slide the four sliding bars 4 toward the rectangular groove 2 to the limit position, so that the hooks 5 on the four sliding bars 4 are exposed outside the sliding groove 3, and then the outer edge of the anti-fall net is hung on each hook 5. When people need to enter the manhole groove 1, people slide the four sliding bars 4 back to the manhole groove 1, so that all the hooks 5 are located in the sliding groove 3. This arrangement makes it difficult for the hooks 5 to contact people when people enter the manhole groove 1, thereby ensuring people's safety.
[0020] like Figure 2 When the lever 5 is in the locking position, the lever 5 is in the locking position, and the locking cam 5 is in the locking position, so that the lever 5 can be locked in the locking position, and the locking cam 5 can be locked ...
[0021] like Figure 2 and Figure 3As shown, the manhole cover includes an outer frame 9 and a rectangular block 10 located at the center of the outer frame 9, four card slots 1 8 are all located on the outer frame 9, and four card slots 2 11 are opened on the side of the outer frame 9 facing away from the card slot 1 8. When the four shifting blocks 7 are all inserted into the card slots 2 11, all the hooks 5 are located in the sliding grooves 3. After people slide the four sliding bars 4 away from the manhole groove 1 to the limited position, people can insert the outer frame 9 into the rectangular groove 2. At this time, the card slot 2 11 on the outer frame 9 is embedded by the shifting block 7, so that the shifting block 7 is not easily touched by mistake, ensuring that a number of hooks 5 can remain in the state of being located in the sliding groove 3. An inner edge frame 12 is provided on the inner peripheral wall of the outer frame 9, and one side of the inner edge frame 12 is flush with the side of the outer frame 9 where the card slot 1 8 is provided. The inner edge frame 12 is used to support the rectangular block 10. When installing the manhole cover, people first move the outer frame 9 is inserted into the rectangular groove 2, and then the rectangular block 10 is inserted into the center of the outer frame 9. The inner edge frame 12 supports the rectangular block 10 so that the rectangular block 10 will not fall. This arrangement makes it easy for people to disassemble the outer frame 9 and the rectangular block 10. The inner circumferential wall of the outer frame 9 is flush with the inner circumferential wall of the manhole groove 1. This arrangement makes the inner edge frame 12 protrude outside the inner wall of the manhole groove 1, so that people can pull the outer frame 9 out of the rectangular groove 2 by holding the inner edge frame 12 with their hands. The inner edge frame 12 provides a fulcrum for people to exert force. A number of through holes 13 are opened on the rectangular block 10. The setting of the through holes 13 makes it possible for people to pull out the rectangular block 10 through the through holes 13, which is convenient for the rectangular block 10 to be separated from the outer frame 9. The manhole cover is made of cast iron. The high strength and long life of cast iron ensure the overall life of the manhole cover.
[0022] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A manhole, characterized in that: The invention comprises a manhole body and a manhole cover, wherein the manhole body is provided with a manhole groove (1), the top surface of the manhole body is provided with a rectangular groove (2) connected with the manhole groove (1), the rectangular groove (2) is used to be embedded in the manhole cover, and sliding grooves (3) are provided on the four inner walls of the manhole groove (1), a sliding bar (4) is slidably connected in the sliding groove (3), and a plurality of hooks (5) are fixedly connected to one side of the sliding bar (4), and the plurality of hooks (5) can completely enter the sliding groove (3).
2. The manhole according to claim 1, characterized in that: A shifting groove (6) communicating with the sliding groove (3) is provided on the bottom of the rectangular groove (2), and a shifting block (7) fixedly connected to the top surface of the sliding bar (4) is provided in the shifting groove (6).
3. The manhole according to claim 2, characterized in that: Four locking grooves (8) are provided on one side of the manhole cover. When the four shifting blocks (7) are all inserted into the locking grooves (8), all the hooks (5) are exposed outside the sliding grooves (3).
4. The manhole according to claim 3, characterized in that: The manhole cover comprises an outer frame (9) and a rectangular block (10) located at the center of the outer frame (9); the four first card slots (8) are all located on the outer frame (9); four second card slots (11) are opened on the side of the outer frame (9) facing away from the first card slot (8); when the four shifting blocks (7) are all inserted into the second card slots (11), all the hooks (5) are located in the sliding slots (3).
5. The manhole according to claim 4, characterized in that: An inner edge frame (12) is arranged on the inner peripheral wall of the outer frame (9), one side of the inner edge frame (12) is flush with the side of the outer frame (9) where the first card slot (8) is arranged, and the inner edge frame (12) is used to support the rectangular block (10).
6. The manhole according to claim 5, characterized in that: The inner peripheral wall of the outer frame (9) is flush with the inner peripheral wall of the manhole groove (1).
7. The manhole according to claim 6, characterized in that: The rectangular block (10) is provided with a plurality of through holes (13).