Safety inspection well cover

Abstract

The utility model belongs to the technical field of well lids, and discloses a safety inspection well lid which comprises a lid body, a plurality of arc-shaped drainage openings are formed in the top of the lid body and evenly distributed about the axis of the lid body, and the extending direction of the arc-shaped drainage openings is in an arc shape. The distance between a top opening of the arc-shaped water outlet and the axis of the cover body is smaller than that between a bottom opening of the arc-shaped water outlet and the axis of the cover body, an annular groove body is formed in the position, corresponding to the bottom opening of the arc-shaped water outlet, of the bottom of the cover body, and the annular groove body is detachably connected with the bottom of the cover body. The structure of the inspection well cover is changed, after a mobile phone, a watch and other large objects fall into the arc-shaped water outlet, the large objects are easily clamped in the arc-shaped water outlet, so that a loser directly takes out small objects such as a ring and falls into the annular groove body from the arc-shaped water outlet, the loser opens the inspection well cover and disassembles the annular groove body after finding a worker who manages the inspection well cover, and the labor intensity of the loser is reduced. Therefore, the difficulty that the worker takes out the lost finance of the loser is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a safety manhole cover. Background Art

[0002] There are many underground pipelines in urban construction, such as sewers, underground gas pipelines, water pipelines, power pipelines, communication pipelines, national defense pipelines, etc. These pipelines must have an outlet to the ground at intervals. The section from the pipeline to the ground is called a manhole. The manhole opening is usually flush with the ground, so a cover is needed. The cover used to cover the manhole is called a manhole cover. Manhole covers are usually made of reinforced cement, metal, reinforced plastic and other materials, and are mainly round and square in shape.

[0003] A Chinese utility model patent with publication number CN212896475U discloses a manhole cover that is easy to drain, including a ring frame seat, a cover body is placed on the surface of the ring frame seat, the ring frame seat adopts a concave ring structure, and a ring groove is arranged on its surface, a water guide hole is arranged on the inner surface of the ring frame seat, and a water guide port is arranged on the outer surface of the cover body. The water guide hole on the ring frame seat cooperates with the water guide port on the edge of the cover body, and an opening is arranged on the surface of the cover body.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: a water inlet and an opening are provided on the cover body, and valuable items such as mobile phones, watches, and rings can easily fall into the manhole from the water inlet and the opening. Even if the owner opens the manhole cover with the help of the manhole cover manager, he still has to go down into the manhole to look for the lost items. The manhole is usually deep and the situation inside the manhole is relatively complicated, which increases the difficulty of finding the lost items. Therefore, it is necessary to improve the manhole cover in the related technology. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a safe manhole cover.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a safe manhole cover, including a cover body, a plurality of arc-shaped drain outlets are opened on the top of the cover body, and the plurality of arc-shaped drain outlets are evenly distributed about the axis of the cover body. The extension direction of the arc-shaped drain outlet is arc-shaped, and the distance between the top opening of the arc-shaped drain outlet and the axis of the cover body is smaller than the distance between the bottom opening of the arc-shaped drain outlet and the axis of the cover body, and an annular groove body is provided at a position of the bottom of the cover body corresponding to the bottom opening of the arc-shaped drain outlet, and the annular groove body is detachably connected to the bottom of the cover body.

[0007] By adopting the above technical solution, a plurality of arc-shaped drain ports extending in an arc-shaped direction are evenly arranged on the periphery of the cover body, and the distance between the top opening of the arc-shaped drain port and the axis of the cover body is smaller than the distance between the bottom opening of the arc-shaped drain port and the axis of the cover body. When large valuables such as watches and mobile phones fall into the arc-shaped drain port, they are easily stuck behind the arc-shaped drain port, so that it is convenient for the owner to directly take out the lost items from the arc-shaped drain port. When small valuables such as rings fall into the arc-shaped drain port, they eventually fall into the annular groove body. After the owner finds the staff who manages the manhole cover, he can open the cover body and disassemble the annular groove body to take out the lost items, which reduces the property loss of the owner and reduces the difficulty for the staff to take out the lost property of the owner.

[0008] Furthermore, a fixing assembly for fixing the annular groove body is provided at the bottom of the cover body, and the fixing assembly includes an arc-shaped mounting plate, a support plate fixed to the arc-shaped mounting plate, and a bolt penetrating the arc-shaped mounting plate and loosely matched with the arc-shaped mounting plate. The upper end of the bolt is threadedly connected to the bottom of the cover body, and the support plate is provided with multiple ones. The top of the support plate is provided with an arc-shaped groove that is snap-fitted with the bottom of the annular groove body.

[0009] By adopting the above technical solution, after the staff removes the bolts, the arc-shaped mounting plate and the support plate can be disassembled, so that the staff can remove the annular groove body from the arc-shaped groove to take out small valuables in the arc-shaped groove.

[0010] Furthermore, the top of the support plate is fitted with the bottom surface of the cover body, and the surface of the support plate on the side away from the axis of the cover body is an arc-shaped surface that matches the inner wall of the manhole.

[0011] By adopting the above technical solution, after the cover body is closed, the surface of the support plate away from the axis of the cover body is in close contact with the inner wall of the manhole, so that the support plate cooperates with the manhole and provides good support and reinforcement for the cover body, thereby enhancing the structural strength of the manhole cover and improving the safety of the manhole cover.

[0012] Furthermore, the height of the annular groove body at a side away from the axis of the cover body is greater than the height of the annular groove body at a side close to the axis of the cover body, and a plurality of first water seepage holes are formed through the bottom of the annular groove body.

[0013] Furthermore, a plurality of second water seepage holes are evenly formed on one side of the annular groove body close to the axis of the cover body, and the diameter of the second water seepage holes is greater than the diameter of the first water seepage holes.

[0014] By adopting the above technical solution, multiple first seepage holes and multiple second seepage holes cooperate to achieve good drainage, so that rainwater entering the annular groove body is discharged into the underground drainage system. The aperture of the second seepage hole is smaller than the diameter of the ring, which reduces the probability of small valuables falling into the deep manhole, and at the same time enables the manhole cover to maintain good drainage performance. In addition, the staff needs to open the cover body regularly and clean up the debris in the annular groove body to ensure the smooth drainage work.

[0015] Furthermore, a connecting block is integrally formed on one side of the cover body and is rotatably connected to the inner wall of the manhole near the top of the manhole.

[0016] Furthermore, the plurality of support plates are concentratedly distributed at the bottom of the cover body on one side close to the connection block.

[0017] By adopting the above technical solution, the situation that the opening and closing of the cover body are affected by the support plate being distributed on the side of the cover body away from the connecting block is avoided.

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1. This application changes the structure of the manhole cover. When large items such as mobile phones and watches fall into the arc-shaped drain port, they are easily stuck in the arc-shaped drain port, so that the owner can directly take them out. When small items such as rings fall into the annular groove from the arc-shaped drain port, the owner can find the staff who manages the manhole cover, open the cover and disassemble the annular groove to take out the lost items, which reduces the property loss of the owner and reduces the difficulty for the staff to take out the lost property of the owner;

[0020] 2. In the present application, after the cover is closed, the surface of the support plate away from the axis of the cover is in close contact with the inner wall of the manhole, so that the support plate cooperates with the manhole and provides good support and reinforcement for the cover, thereby enhancing the structural strength of the manhole cover and improving the safety of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 , Figure 2 All of them are schematic diagrams of the overall structure of the utility model;

[0022] Figure 3 , Figure 4 All of them are structural schematic diagrams of the utility model for highlighting the arc-shaped groove.

[0023] In the figure: 1, cover body; 11, connecting block; 12, arc-shaped drain port; 2, annular groove body; 21, first water seepage hole; 22, second water seepage hole; 3, fixing assembly; 31, arc-shaped mounting plate; 32, support plate; 321, arc-shaped groove; 33, bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0025] Example 1

[0026] like Figure 1-4 As shown, the embodiment of the present application discloses a safety manhole cover, including a cover body 1, an annular groove body 2 and a fixing assembly 3. The cross section of the cover body 1 is circular, and the cover body 1 cooperates with the stepped groove at the top of the manhole. A connecting block 11 is integrally formed on one side of the cover body 1 and is rotatably connected to the inner wall of the manhole near the top of the manhole. A plurality of arc-shaped drain ports 12 are opened on the top of the cover body 1, and the plurality of arc-shaped drain ports 12 are evenly distributed about the axis of the cover body 1. The extension direction of the arc-shaped drain ports 12 is arc-shaped, and the distance between the top opening of the arc-shaped drain port 12 and the axis of the cover body 1 is smaller than the distance between the bottom opening of the arc-shaped drain port 12 and the axis of the cover body 1.

[0027] The annular groove body 2 is arranged at a position corresponding to the bottom opening of the arc-shaped drain port 12 at the bottom of the cover body 1. The annular groove body 2 is detachably connected to the bottom of the cover body 1. A plurality of arc-shaped drain ports 12 extending in an arc-shaped direction are evenly arranged on the periphery of the cover body 1. The distance between the top opening of the arc-shaped drain port 12 and the axis of the cover body 1 is smaller than the distance between the bottom opening of the arc-shaped drain port 12 and the axis of the cover body 1. When large valuables such as watches and mobile phones fall into the arc-shaped drain port 12, they are easily stuck behind the arc-shaped drain port 12, so that the owner can directly take out the lost items from the arc-shaped drain port 12. When small valuables such as rings fall into the arc-shaped drain port 12, they eventually fall into the annular groove body 2. After the owner finds the staff who manages the manhole cover, he can open the cover body 1 and disassemble the annular groove body 2 to take out the lost items, which reduces the property loss of the owner and reduces the difficulty for the staff to take out the lost property of the owner.

[0028] The fixing assembly 3 is arranged at the bottom of the cover body 1 and is used to fix the annular trough body 2. The fixing assembly 3 includes an arc-shaped mounting plate 31, a support plate 32 and a bolt 33. The arc-shaped mounting plate 31 is a plate-like structure extending in an arc shape. There are multiple support plates 32, which are concentrated and evenly distributed at the bottom of the cover body 1 near the connecting block 11. The multiple support plates 32 are fixed to the arc-shaped mounting plate 31, and the top of the support plate 32 is provided with an arc-shaped groove 321 that is snap-fitted with the bottom of the annular trough body 2. The bolt 33 is arranged on the arc-shaped mounting plate 31 and is gap-fitted with the arc-shaped mounting plate 31. The upper end of the bolt 33 is threadedly connected to the bottom of the cover body 1. After the staff removes the bolt 33, the arc-shaped mounting plate 31 and the support plate 32 can be disassembled, so that the staff can remove the annular trough body 2 from the arc-shaped groove 321 to take out small valuables in the arc-shaped groove 321. In addition, the staff needs to open the cover body 1 regularly and clean up the debris in the annular groove body 2 to ensure the smooth progress of the drainage work.

[0029] In this embodiment, the height of the annular groove body 2 away from the axis of the cover body 1 is greater than the height of the annular groove body 2 close to the axis of the cover body 1. A plurality of first seepage holes 21 are provided through the bottom of the annular groove body 2. A plurality of second seepage holes 22 are evenly provided on the side of the annular groove body 2 close to the axis of the cover body 1. The diameter of the second seepage holes 22 is greater than the diameter of the first seepage holes 21. The cooperation of the plurality of first seepage holes 21 and the plurality of second seepage holes 22 plays a good drainage role, so that the rainwater entering the annular groove body 2 is discharged into the underground drainage system. The aperture of the second seepage hole 22 is smaller than the diameter of the ring, which reduces the probability of small valuables falling into the deep of the manhole, and at the same time enables the manhole cover to maintain good drainage performance. In addition, the staff needs to open the cover body 1 regularly and clean up the debris in the annular groove body 2 to ensure the smooth drainage work.

[0030] The use principle of a safety manhole cover in this embodiment is as follows: when large valuables such as watches and mobile phones fall into the arc-shaped drain port 12, they are easily stuck behind the arc-shaped drain port 12, so that the owner can directly take out the lost items from the arc-shaped drain port 12. When small valuables such as rings fall into the arc-shaped drain port 12, they eventually fall into the annular groove 2. After the owner finds the staff who manages the manhole cover, he can open the cover 1 and disassemble the annular groove 2 to take out the lost items, which reduces the property loss of the owner and reduces the difficulty for the staff to take out the lost property of the owner.

[0031] Example 2

[0032] like Figure 3As shown, the only difference between this embodiment and embodiment 1 is that the top of the support plate 32 fits with the bottom surface of the cover body 1, and the surface of the support plate 32 away from the axis of the cover body 1 is an arc-shaped surface that matches the inner wall of the manhole. After the cover body 1 is closed, the surface of the support plate 32 away from the axis of the cover body 1 is in close contact with the inner wall of the manhole, so that the support plate 32 matches with the manhole and plays a good supporting and reinforcing role for the cover body 1, thereby enhancing the structural strength of the manhole cover and improving the safety of the manhole cover. Multiple support plates 32 are concentrated on the side of the cover body 1 close to the connecting block 11, avoiding the situation where the support plates 32 are distributed on the side of the cover body 1 away from the connecting block 11, which affects the opening and closing of the cover body 1.

[0033] 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 safety manhole cover, comprising a cover body (1), characterized in that: The top of the cover body (1) is provided with a plurality of arc-shaped drain openings (12), the plurality of arc-shaped drain openings (12) are evenly distributed about the axis of the cover body (1), the extension direction of the arc-shaped drain openings (12) is arc-shaped, the distance between the top opening of the arc-shaped drain opening (12) and the axis of the cover body (1) is smaller than the distance between the bottom opening of the arc-shaped drain opening (12) and the axis of the cover body (1), and an annular groove body (2) is provided at a position of the bottom of the cover body (1) corresponding to the bottom opening of the arc-shaped drain opening (12), and the annular groove body (2) is detachably connected to the bottom of the cover body (1).

2. A safety manhole cover according to claim 1, characterized in that: A fixing assembly (3) for fixing the annular groove body (2) is arranged at the bottom of the cover body (1), and the fixing assembly (3) comprises an arc-shaped mounting plate (31), a support plate (32) fixed to the arc-shaped mounting plate (31), and a bolt (33) penetrating the arc-shaped mounting plate (31) and loosely matched with the arc-shaped mounting plate (31), the upper end of the bolt (33) being threadedly connected to the bottom of the cover body (1), a plurality of support plates (32) are provided, and an arc-shaped groove (321) is provided at the top of the support plate (32) for clamping and matching with the bottom of the annular groove body (2).

3. A safety manhole cover according to claim 2, characterized in that: The top of the support plate (32) is in contact with the bottom surface of the cover body (1), and the surface of the support plate (32) on the side away from the axis of the cover body (1) is an arc-shaped surface that matches the inner wall of the manhole.

4. A safety manhole cover according to claim 3, characterized in that: The height of the annular groove body (2) on the side away from the axis of the cover body (1) is greater than the height of the annular groove body (2) on the side close to the axis of the cover body (1), and a plurality of first water seepage holes (21) are formed through the bottom of the annular groove body (2).

5. A safety manhole cover according to claim 4, characterized in that: A plurality of second water seepage holes (22) are evenly arranged on one side of the annular groove body (2) close to the axis of the cover body (1), and the diameter of the second water seepage holes (22) is greater than the diameter of the first water seepage holes (21).

6. A safety manhole cover according to claim 4, characterized in that: A connecting block (11) is integrally formed on one side of the cover body (1) and is rotatably connected to the inner wall of the manhole near the top of the manhole.

7. A safety manhole cover according to claim 6, characterized in that: The plurality of support plates (32) are concentratedly distributed at the bottom of the cover body (1) on one side close to the connection block (11).

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