Anti-theft inspection well cover

Abstract

The utility model belongs to the technical field of inspection well covers, and discloses an anti-theft inspection well cover which comprises a well base, a mounting groove is formed in the upper surface of the well base, a well cover body used for sealing the well base is arranged in the mounting groove, a limiting groove is formed in the side wall of the well cover body, and a limiting rod is slidably arranged in the limiting groove; fixing springs are fixed to the side walls, close to the axis of the well lid, of the limiting rods, the other ends of the fixing springs are fixed to the inner walls, close to the axis of the well lid, of the limiting grooves, and a driving assembly used for driving the limiting rods is arranged on the well lid body. The manhole cover has the effect of reducing the difficulty of opening the manhole cover by workers.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, and particularly relates to an anti-theft manhole cover. Background Art

[0002] A manhole is a vertical passage from the ground into various public pipe networks underground. A manhole cover is provided above to block the upper opening of the manhole, preventing sundries, people, and vehicles from falling, while also maintaining the integrity of the road surface. The accumulated water on the road surface can flow down through the water inlet holes of the manhole cover into the manhole and then be discharged into the municipal pipe network. The most common setting of existing municipal manhole covers is to directly cover a manhole cover on the reserved manhole opening.

[0003] In a Chinese utility model patent with the publication number CN213597046U, an anti-theft manhole cover is disclosed, which is characterized in that it includes a manhole seat, a manhole cover, and several clamping blocks. A manhole cover connection stop is provided at the upper end of the through hole of the manhole seat, and several outward-expanding locking notches one are evenly distributed on the inner wall of the manhole cover connection stop. A screw hole is provided at the bottom of the locking notch one.

[0004] Regarding the above-related technology, the inventor believes that there are the following defects: The above device fixes the manhole cover through several locking screws connected to the screw holes. When the staff needs to open the manhole cover for maintenance, the staff needs to completely remove several locking screws to open the manhole cover, and the operation is relatively complex. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides an anti-theft manhole cover.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: An anti-theft manhole cover includes a manhole seat. An installation groove is opened on the upper surface of the manhole seat. A manhole cover body for closing the manhole seat is arranged in the installation groove. A limiting groove is opened on the side wall of the manhole cover body. A limiting rod is slidably arranged in the limiting groove. A fixing spring is fixed on the side wall of the limiting rod close to the axis of the manhole cover, and the other end of the fixing spring is fixed on the inner wall of the limiting groove close to the axis of the manhole cover. A driving component for driving the limiting rod is arranged on the manhole cover body.

[0007] By adopting the above technical solutions, when the staff needs to close the manhole seat, the staff needs to completely move the limiting rod into the limiting groove and connect the manhole cover body with the installation groove, so that the limiting rod can be connected with the limiting hole under the action of the fixing spring, and then the manhole cover body can be kept stable. Subsequently, when the staff needs to open the manhole cover body, the staff needs to connect the switch rod with the rotating groove, thereby starting the driving component, and then separating the driving rod from the limiting hole. In this process, the staff needs to use a special switch rod to start the driving component, thereby reducing the probability of the manhole cover body being lost.

[0008] Furthermore, a rotating groove is formed on the upper surface of the manhole cover body, and an annular groove is formed on the inner wall of the rotating groove. The driving assembly includes an arc-shaped block rotatably arranged in the annular groove, a connecting rope with one end fixed to the side wall of the limiting rod close to the axis of the manhole cover, and a switch rod slidably arranged in the rotating groove. The other end of the connecting rope extends into the annular groove and is fixed to the arc-shaped block.

[0009] Furthermore, the switch rod includes a rotating rod slidably arranged in the rotating groove and a mounting rod fixed to the rotating rod. A first sliding groove is formed at the upper end of the inner wall of the rotating groove, and a second sliding groove is formed at the bottom surface of the arc-shaped block.

[0010] Furthermore, the mounting rod includes a first mounting rod fixed to the rotating rod and a second mounting rod fixed to the upper surface of the first mounting rod. The first mounting rod is matched with the first sliding groove, and the second mounting rod is matched with the second sliding groove.

[0011] By adopting the above technical solution, when the staff needs to open the manhole cover body, the staff needs to connect the rotating rod with the rotating groove and connect the first mounting rod with the first sliding groove, so that the rotating rod can slide up and down. At this time, the staff needs to slide down to separate the first mounting rod from the first sliding groove. Subsequently, the staff needs to rotate the rotating rod to align the second mounting rod with the second sliding groove and connect the second mounting rod with the second sliding groove, so that the second mounting rod is connected with the arc-shaped block. At this time, the staff only needs to rotate the rotating rod to make the arc-shaped block rotate with the rotating rod, so that the connecting rope is gradually wound around the side wall of the arc-shaped block, and then the limiting rod is separated from the limiting hole.

[0012] Furthermore, the upper surface area of the first mounting rod is larger than the upper surface area of the second mounting rod.

[0013] By adopting the above technical solution, when the second mounting rod is connected with the second sliding groove, the probability that the first mounting rod moves into the second sliding groove is reduced, thereby increasing the complexity of the switch rod and further reducing the probability of the loss of the manhole cover body.

[0014] Furthermore, a limiting hole matching the limiting groove is formed on the inner wall of the mounting groove.

[0015] Furthermore, a handle for reducing the difficulty of the staff in sliding the rotating rod is fixed on the upper surface of the rotating rod.

[0016] By adopting the above technical solution, the probability of the staff slipping when rotating the rotating rod is reduced, thereby improving the use experience of the staff.

[0017] Furthermore, the included angle between the first sliding groove and the second sliding groove is 180 degrees.

[0018] By adopting the above technical solution, the difficulty for the staff to judge the position of the second placement rod is reduced, thereby reducing the operation difficulty of the staff.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1. In this application, when the staff needs to close the well seat, the staff needs to move the limiting rod completely into the limiting groove and connect the manhole cover body with the installation groove, so that the limiting rod can be connected with the limiting hole under the action of the fixed spring, and then the manhole cover body can be kept stable. Subsequently, when the staff needs to open the manhole cover body, the staff needs to connect the switch rod with the rotating groove, thereby starting the driving component, and then separating the driving rod from the limiting hole. In this process, the staff needs to use a special switch rod to start the driving component, thereby reducing the probability of the manhole cover body being lost;

[0021] 2. In this application, when the staff needs to open the manhole cover body, the staff needs to connect the rotating rod with the rotating groove and connect the first placement rod with the first sliding groove, so that the rotating rod can slide up and down. At this time, the staff needs to slide down to separate the first placement rod from the first sliding groove. Subsequently, the staff needs to rotate the rotating rod to align the second placement rod with the second sliding groove and connect the second placement rod with the second sliding groove, so that the second placement rod is connected with the arc-shaped block. At this time, the staff only needs to rotate the rotating rod, and the arc-shaped block can follow the rotating rod to rotate, so that the connecting rope is gradually wound around the side wall of the arc-shaped block, and then the limiting rod is separated from the limiting hole;

[0022] 3. In this application, the probability that the first placement rod moves into the second sliding groove when the second placement rod is connected with the second sliding groove is reduced, thereby increasing the complexity of the switch rod, and further reducing the probability of the manhole cover body being lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structural schematic diagram of the embodiment of the utility model;

[0024] Figure 2 is the schematic diagram of the structure of the embodiment of the utility model and its connection;

[0025] Figure 3 is the schematic diagram of the limiting groove of the embodiment of the utility model and its connection structure;

[0026] Figure 4 is the enlarged structural schematic diagram of A in the embodiment of the utility model;

[0027] Figure 5 is the schematic diagram of the arc-shaped block of the embodiment of the utility model and its connection structure;

[0028] Figure 6 It is a schematic diagram of the switch rod and its connection structure according to an embodiment of the present utility model.

[0029] In the figure: 1, well seat; 11, installation groove; 2, manhole cover body; 21, limit groove; 3, limit rod; 31, fixed spring; 32, rotation groove; 33, annular groove; 4, drive assembly; 41, arc-shaped block; 42, connecting rope; 5, switch rod; 51, rotating rod; 52, installation rod; 521, first installation rod; 522, second installation rod; 6, first chute; 61, second chute; 7, limit hole; 8, grip. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] As Figure 1-6 shown, an anti-theft manhole cover disclosed in an embodiment of the present application includes a well seat 1, a manhole cover body 2, a limit rod 3, a fixed spring 31, and a drive assembly 4. An installation groove 11 is provided on the upper surface of the well seat 1. The manhole cover body 2 is in a circular plate structure and is arranged in the installation groove 11 for closing the well seat 1. A limit groove 21 is provided on the side wall of the manhole cover body 2, and a limit hole 7 matching the limit groove 21 is provided on the inner wall of the installation groove 11. The limit rod 3 is in a rectangular rod structure and is slidably arranged in the limit groove 21. One end of the fixed spring 31 is fixed on the side wall of the limit rod 3 close to the axis of the manhole cover, and the other end of the fixed spring 31 is fixed on the inner wall of the limit groove 21 close to the axis of the manhole cover.

[0032] A rotation groove 32 is provided on the upper surface of the manhole cover body 2, and an annular groove 33 is provided on the inner wall of the rotation groove 32. The drive assembly 4 is arranged on the manhole cover body 2 for driving the limit rod 3. The drive assembly 4 includes an arc-shaped block 41, a connecting rope 42, and a switch rod 5. The arc-shaped block 41 is in a block structure with a circular arc cross-section and is rotatably arranged in the annular groove 33. One end of the connecting rope 42 is fixed on the side wall of the limit rod 3 close to the axis of the manhole cover, and the other end of the connecting rope 42 extends into the annular groove 33 and is fixed to the arc-shaped block 41.

[0033] The switch rod 5 is slidably arranged in the rotating groove 32. The switch rod 5 includes a rotating rod 51 and a mounting rod 52. The rotating rod 51 is in a round rod shape and is slidably arranged in the rotating groove 32. A first sliding groove 6 is formed at the upper end of the inner wall of the rotating groove 32, and a second sliding groove 61 is formed at the bottom surface of the arc-shaped block 41. The mounting rod 52 is fixed on the rotating rod 51. The mounting rod 52 includes a first mounting rod 521 and a second mounting rod 522. The first mounting rod 521 is in a rod shape, the first mounting rod 521 is fixedly connected to the rotating rod 51, and the first mounting rod 521 is matched with the first sliding groove 6. The second mounting rod 522 is in a rod shape, the second mounting rod 522 is fixedly connected to the upper surface of the first mounting rod 521, and the second mounting rod 522 is matched with the second sliding groove 61.

[0034] When the staff needs to open the manhole cover body 2, the staff needs to connect the rotating rod 51 with the rotating groove 32 and connect the first mounting rod 521 with the first sliding groove 6, so that the rotating rod 51 can slide up and down. At this time, the staff needs to slide downwards so that the first mounting rod 521 is separated from the first sliding groove 6. Subsequently, the staff needs to rotate the rotating rod 51 to align the second mounting rod 522 with the second sliding groove 61 and connect the second mounting rod 522 with the second sliding groove 61, so that the second mounting rod 522 is connected with the arc-shaped block 41. At this time, the staff only needs to rotate the rotating rod 51, and the arc-shaped block 41 can follow the rotation of the rotating rod 51, so that the connecting rope 42 is gradually wound around the side wall of the arc-shaped block 41, and further the limiting rod 3 is separated from the limiting hole 7.

[0035] In order to reduce the probability of the manhole cover body being lost, the upper surface area of the first mounting rod 521 is larger than the upper surface area of the second mounting rod 522. Such a setting reduces the probability that the first mounting rod 521 moves into the second sliding groove 61 when the second mounting rod 522 is connected with the second sliding groove 61, thereby increasing the complexity of the switch rod 5 and further reducing the probability of the manhole cover body being lost.

[0036] In order to reduce the probability of the staff slipping when rotating the rotating rod 51 and thus improve the use experience of the staff, a grip 8 for reducing the difficulty of the staff sliding the rotating rod 51 is fixed on the upper surface of the rotating rod 51.

[0037] In order to reduce the difficulty for the staff to judge the position of the second mounting rod 522 and thus reduce the operation difficulty of the staff, the included angle between the first sliding groove 6 and the second sliding groove 61 is 180 degrees.

[0038] In this embodiment, the working principle of an anti-theft manhole cover is as follows: When the staff needs to close the manhole seat 1, the staff needs to move the limiting rod 3 completely into the limiting groove 21, and connect the manhole cover body 2 with the installation groove 11, so that the limiting rod 3 can be connected with the limiting hole 7 under the action of the fixed spring 31, and then keep the manhole cover body 2 stable. Subsequently, when the staff needs to open the manhole cover body 2, the staff needs to connect the switch rod 5 with the rotating groove 32, thereby starting the driving component 4, and then separating the driving rod from the limiting hole 7. During this process, the staff needs to use a special switch rod 5 to start the driving component 4, thereby reducing the probability of the manhole cover body 2 being lost.

[0039] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A theft-proof manhole cover, comprising a manhole seat (1), characterized in that: The upper surface of the well seat (1) is provided with an installation groove (11), a well cover body (2) for closing the well seat (1) is arranged in the installation groove (11), a limiting groove (21) is arranged on the side wall of the well cover body (2), a limiting rod (3) is slidably arranged in the limiting groove (21), a fixing spring (31) is fixed on the side wall of the limiting rod (3) close to the axis of the well cover, the other end of the fixing spring (31) is fixed on the inner wall of the limiting groove (21) close to the axis of the well cover, and a driving component (4) for driving the limiting rod (3) is arranged on the well cover body (2).

2. The anti-theft manhole cover according to claim 1 is characterized in that: The upper surface of the manhole cover body (2) is provided with a rotation groove (32), the inner wall of the rotation groove (32) is provided with an annular groove (33), the driving assembly (4) comprises an arc block (41) rotatably arranged in the annular groove (33), a connecting rope (42) with one end fixed on the limit rod (3) close to the side wall of the manhole cover axis, and a switch rod (5) slidably arranged in the rotation groove (32), the other end of the connecting rope (42) extends into the annular groove (33) and is fixed to the arc block (41).

3. The anti-theft manhole cover according to claim 2 is characterized in that: The switch rod (5) comprises a rotating rod (51) slidably arranged in the rotating groove (32) and a mounting rod (52) fixed on the rotating rod (51); a first sliding groove (6) is provided at the upper end of the inner wall of the rotating groove (32); and a second sliding groove (61) is provided on the bottom surface of the arc block (41).

4. The anti-theft manhole cover according to claim 3 is characterized in that: The mounting rod (52) comprises a first mounting rod (521) fixed to the rotating rod (51) and a second mounting rod (522) fixed to the upper surface of the first mounting rod (521), the first mounting rod (521) matching with the first sliding groove (6), and the second mounting rod (522) matching with the second sliding groove (61).

5. The anti-theft manhole cover according to claim 4 is characterized in that: The upper surface area of ​​the first placement rod (521) is greater than the upper surface area of ​​the second placement rod (522).

6. The anti-theft manhole cover according to claim 1 is characterized in that: A limiting hole (7) matching the limiting groove (21) is provided on the inner wall of the installation groove (11).

7. The anti-theft manhole cover according to claim 5 is characterized in that: A handle (8) is fixed on the upper surface of the rotating rod (51) to reduce the difficulty for a worker to slide the rotating rod (51).

8. The anti-theft manhole cover according to claim 7 is characterized in that: The included angle between the first sliding groove (6) and the second sliding groove (61) is 180 degrees.

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