A detection and alarm device for smart manhole covers

Abstract

This utility model relates to the field of manhole cover monitoring technology, specifically a detection and alarm device for smart manhole covers. It includes an installation mechanism detachably connected to the bottom surface of the manhole cover, and a manhole cover movement sensor body detachably attached to the bottom surface of the installation mechanism. Two sleeves are provided on the outer side of the manhole cover movement sensor body. A fixing mechanism is located on the bottom surface of the installation mechanism, capable of clamping and fixing the manhole cover movement sensor body. The fixing mechanism includes two sets of symmetrical rectangular frames fixedly connected to the installation mechanism. In this utility model, by fixing the installation mechanism to the bottom surface of the manhole cover and then sliding the two V-shaped shells between the two rectangular frames at corresponding positions, manhole cover movement sensor bodies of different sizes can be fixed without re-drilling holes in the manhole cover, thus avoiding excessive strength loss of the manhole cover. Furthermore, the installation of the manhole cover movement sensor body is quick and convenient.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover monitoring technology, specifically a detection and alarm device for smart manhole covers. Background Technology

[0002] With the acceleration of urbanization, the construction of municipal public facilities has developed rapidly. Cables of power, communications and other departments are mostly buried underground and maintained through manhole covers. Due to the lack of effective real-time monitoring and management, crimes such as prying open manhole covers to steal cables and stealing manhole covers occur frequently. This not only affects the normal operation of related equipment, but also poses a great danger to vehicles and pedestrians on the road. At present, manhole cover movement sensors are usually installed on the back of the manhole cover to detect the status of the manhole cover (deformation, detachment, tilting, etc.).

[0003] Currently, existing manhole cover movement sensors are typically fixed to the back of the manhole cover with bolts. This requires drilling holes or welding internally threaded tubes to the back of the manhole cover for bolt tightening. However, the location of the drilled holes or the fixed internally threaded tubes is fixed. This means that when replacing manhole cover movement sensors with different models later, it is necessary to re-drill holes or re-weld internally threaded tubes (if the original manhole cover movement sensor model is insufficient, other models of manhole cover movement sensors will be selected, and the size may vary between models). Drilling too many holes will affect the strength of the manhole cover, and welding too many internally threaded tubes will affect the installation of the manhole cover movement sensor. Utility Model Content

[0004] The purpose of this invention is to provide a detection and alarm device for smart manhole covers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A detection and alarm device for smart manhole covers includes:

[0007] The mounting mechanism is detachably connected to the bottom surface of the manhole cover;

[0008] The manhole cover motion sensor body is detachable from the bottom surface of the mounting mechanism, and two protective sleeves are provided on the outside of the manhole cover motion sensor body;

[0009] A fixing mechanism is set on the bottom surface of the installation mechanism to clamp and fix the manhole cover movement sensor body. The fixing mechanism includes two sets of symmetrical rectangular frames that are fixedly connected to the installation mechanism. The two rectangular frames located on the same side of the installation mechanism are fixedly connected. Two symmetrical V-shaped shells that are engaged with two sleeves are slidably connected between the two rectangular frames.

[0010] Furthermore, a lead screw is rotatably connected between the two ends of the inner side of the rectangular frame, and a connecting plate is fixedly connected to both sides of the V-shaped shell. A slider that is screwed through and engaged with the lead screw at the corresponding position is fixedly connected to one end of the bottom surface of the connecting plate. The lead screws in the two rectangular frames that are fixed to each other are fixedly connected. One end of one of the lead screws passes through the rectangular frame at the corresponding position and is fixedly connected to a synchronous pulley. The two synchronous pulleys are connected by a synchronous belt drive.

[0011] Furthermore, both ends of the top of the rectangular frame are fixedly connected to a blocking block, and both ends of the opposite sides of the rectangular frame are fixedly connected to a cover. A scroll that slides through the rectangular frame at the corresponding position is rotatably connected between the two covers at the opposite position. A waterproof cloth that is fixedly connected to the slider at the corresponding position is wrapped around the outer wall of the scroll. A spring is provided between the cover and the scroll at the corresponding position.

[0012] Furthermore, a support spring is fixedly connected between the slider and the rectangular frame at the corresponding position.

[0013] Furthermore, silicone pads are fixedly connected to both the inner top and inner bottom surfaces of the V-shaped shell.

[0014] Furthermore, the mounting mechanism includes a fixing plate, a base plate fixedly connected to four rectangular frames is provided below the fixing plate, mounting feet are fixedly connected to both ends of the top surface of the fixing plate, sleeves are fixedly connected to the four corners of the bottom surface of the fixing plate, sleeve rods fixedly connected to the base plate are slidably sleeved inside the sleeves, and support springs are fixedly connected between the sleeves and the sleeve rods at corresponding positions, and silicone sleeves are fixedly connected to the four corners between the base plate and the fixing plate and outside the sleeves.

[0015] Furthermore, the package consists of a retaining ring and a retaining sleeve, the retaining ring being fixedly connected to the retaining sleeve at a corresponding position, and the retaining sleeve being made of silicone.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By fixing the mounting mechanism to the bottom of the manhole cover and then sliding the two V-shaped shells between the two rectangular frames at the corresponding positions, the manhole cover motion sensor body of different models and sizes can be fixed without re-drilling holes in the manhole cover, thus avoiding excessive loss of strength of the manhole cover. Moreover, the installation of the manhole cover motion sensor body is quick and convenient.

[0018] 2. By always covering the opening of the rectangular frame at the corresponding position with waterproof cloth, the amount of water vapor in the well entering the rectangular frame can be reduced, thus extending the time before the screw rod rusts and extending its service life.

[0019] 3. The second support spring between the sleeve and the corresponding sleeve rod can buffer the vibration of the fixed manhole cover movement sensor body, prevent the wires inside the manhole cover movement sensor body from being shaken off, and enable the manhole cover movement sensor body to be used for a longer time.

[0020] 4. The manhole cover motion sensor body is secured by two silicone fixing sleeves and two fixing rings are fixed with bolts. Then, the two fixing rings are locked in place by two V-shaped shells. This can fix the manhole cover motion sensor body, and the silicone fixing sleeves can increase the sealing of the manhole cover motion sensor body. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram showing the positions of the fixing mechanism and the manhole cover movement sensor body in this utility model;

[0023] Figure 3 This is a schematic diagram of the installation mechanism structure in this utility model;

[0024] Figure 4 This is a schematic diagram of the manhole cover movement sensor body in this utility model;

[0025] Figure 5 This is a schematic diagram of the fixing mechanism in this utility model;

[0026] Figure 6 This is a schematic diagram of the V-shaped shell in this utility model.

[0027] In the diagram: 1. Installation mechanism; 11. Fixing plate; 12. Base plate; 13. Mounting foot; 14. Sleeve; 15. Sleeve rod; 16. Silicone sleeve; 2. Manhole cover movement sensor body; 21. Fixing ring; 22. Fixing sleeve; 3. Fixing mechanism; 31. Rectangular frame; 311. Blocking block; 32. V-shaped shell; 33. Connecting plate; 34. Slider; 35. Cover; 36. Roller; 37. Waterproof cloth; 38. Synchronous pulley; 39. Support spring one. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1- Figure 6 In this embodiment of the present invention, a detection and alarm device for a smart manhole cover includes an installation mechanism 1, a manhole cover motion sensor body 2, and a fixing mechanism 3. The installation mechanism 1 is detachably connected to the bottom surface of the manhole cover, and the manhole cover motion sensor body 2 is detachably connected to the bottom surface of the installation mechanism 1. Two covers are provided on the outer side of the manhole cover motion sensor body 2. The fixing mechanism 3 is provided on the bottom surface of the installation mechanism 1 and can clamp and fix the manhole cover motion sensor body 2. The fixing mechanism 3 includes two sets of symmetrical rectangular frames 31 that are fixedly connected to the installation mechanism 1. The two rectangular frames 31 located on the same side of the installation mechanism 1 are fixedly connected, and two symmetrical V-shaped shells 32 that are engaged with the two covers are slidably connected between the two rectangular frames 31.

[0030] Specifically, firstly, the mounting mechanism 1 is fixed to the bottom surface of the manhole cover using bolts. Then, the manhole cover motion sensor body 2 is wrapped between two sleeves and clamped and fixed with two V-shaped shells 32, thereby fixing the manhole cover motion sensor body 2. Since the two V-shaped shells 32 slide between the two rectangular frames 31 at corresponding positions, manhole cover motion sensor bodies 2 of different sizes can be fixed without re-drilling holes in the manhole cover, thus avoiding excessive loss of strength of the manhole cover. Moreover, the installation of the manhole cover motion sensor body 2 is relatively quick and convenient.

[0031] Example 1

[0032] like Figure 5 and Figure 6 As shown, in this embodiment, a lead screw is rotatably connected between the two ends of the inner side of the rectangular frame 31. Connecting plates 33 are fixedly connected to both sides of the V-shaped shell 32. A slider 34, which is screwed through and engaged with the lead screw at the corresponding position, is fixedly connected to one end of the bottom surface of the connecting plate 33. The lead screws inside the two mutually fixed rectangular frames 31 are fixedly connected. One end of one of the lead screws passes through the rectangular frame 31 at the corresponding position and is fixedly connected to a synchronous pulley 38. The two synchronous pulleys 38 are connected by a synchronous belt drive. The slider 34 is fixedly connected to the rectangular frame 31 at the corresponding position. A supporting spring 39 is provided. Silicone pads are fixedly connected to the inner top and bottom surfaces of the V-shaped shell 32. A blocking block 311 is fixedly connected to both ends of the inner top of the rectangular frame 31. A cover 35 is fixedly connected to both ends of the two opposite sides of the rectangular frame 31. A scroll 36 that slides through the rectangular frame 31 at the corresponding position is rotatably connected between the two covers 35 at the opposite position. A waterproof cloth 37 that is fixedly connected to the slider 34 at the corresponding position is wrapped around the outer wall of the scroll 36. A spring is provided between the cover 35 and the scroll 36 at the corresponding position.

[0033] In this embodiment, by turning the screw threads in the two mutually fixed rectangular frames 31 in opposite directions, the simultaneous rotation of the four screws can bring the two V-shaped shells 32 closer together or further apart, thereby fixing the manhole cover movement sensor body 2 of different sizes. Moreover, during the movement of the V-shaped shells 32, the waterproof cloth 37 always blocks the opening of the rectangular frame 31 at the corresponding position, which can reduce the water vapor in the well from entering the rectangular frame 31, thus extending the time before the screws rust and extending the service life of the screws.

[0034] Example 2

[0035] like Figure 3 As shown, in this embodiment, the installation mechanism 1 includes a fixing plate 11. A base plate 12 is provided below the fixing plate 11 and is fixedly connected to four rectangular frames 31. Mounting feet 13 are fixedly connected to both ends of the top surface of the fixing plate 11. Sleeves 14 are fixedly connected to the four corners of the bottom surface of the fixing plate 11. A sleeve rod 15 fixedly connected to the base plate 12 is slidably sleeved inside the sleeve 14. A support spring 2 is fixedly connected between the sleeve 14 and the sleeve rod 15 at the corresponding position. Silicone sleeves 16 are fixedly connected to the four corners between the base plate 12 and the fixing plate 11 and outside the sleeve 14.

[0036] In this embodiment, by using bolts to fix the two mounting feet 13 to the bottom surface of the manhole cover, the entire device can be fixed to the bottom surface of the manhole cover. The support spring 2 between the sleeve 14 and the corresponding sleeve rod 15 can buffer the vibration of the fixed manhole cover motion sensor body 2 (for example, the manhole cover in the city will be vibrated after a car drives by), preventing the wires inside the manhole cover motion sensor body 2 from being shaken off, so that the manhole cover motion sensor body 2 can be used for a longer time. The silicone sleeve 16 can prevent a large amount of water vapor from entering the sleeve 14, which would cause the support spring 2 to rust too quickly.

[0037] Example 3

[0038] like Figure 4 As shown, in this embodiment, the package consists of a fixing ring 21 and a fixing sleeve 22. The fixing ring 21 is fixedly connected to the fixing sleeve 22 at the corresponding position, and the fixing sleeve 22 is made of silicone.

[0039] In this embodiment, the manhole cover motion sensor body 2 is held by two silicone fixing sleeves 22, and the two fixing rings 21 are fixed by bolts. Then, the two fixing rings 21 are locked by two V-shaped shells 32, which can fix the manhole cover motion sensor body 2. Moreover, the silicone fixing sleeves 22 can increase the sealing of the inside of the manhole cover motion sensor body 2.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detection and alarm device for smart manhole covers, characterized in that, include: Installation mechanism (1), which is detachably connected to the bottom surface of the manhole cover; The manhole cover motion sensor body (2) is detachable from the bottom surface of the mounting mechanism (1), and two wrapping sleeves are provided on the outside of the manhole cover motion sensor body (2); The fixing mechanism (3) is set on the bottom surface of the installation mechanism (1) and can clamp and fix the manhole cover movement sensor body (2). The fixing mechanism (3) includes two sets of symmetrical rectangular frames (31) that are fixedly connected to the installation mechanism (1). The two rectangular frames (31) located on the same side of the installation mechanism (1) are fixedly connected. There are two symmetrical V-shaped shells (32) that are snapped into two covers between the two rectangular frames (31).

2. The detection and alarm device for smart manhole covers according to claim 1, characterized in that, A lead screw is rotatably connected between the two ends of the rectangular frame (31). A connecting plate (33) is fixedly connected to both sides of the V-shaped shell (32). A slider (34) is fixedly connected to one end of the bottom surface of the connecting plate (33) and is screwed through the lead screw at the corresponding position. The lead screws in the two rectangular frames (31) are fixedly connected. One end of one of the lead screws passes through the rectangular frame (31) at the corresponding position and is fixedly connected to a synchronous pulley (38). The two synchronous pulleys (38) are connected by a synchronous belt drive.

3. The detection and alarm device for smart manhole covers according to claim 2, characterized in that, The top two ends of the rectangular frame (31) are fixedly connected to a blocking block (311). The two ends of the opposite sides of the rectangular frame (31) are fixedly connected to a cover (35). The two covers (35) at opposite positions are rotatably connected to a scroll (36) that slides through the rectangular frame (31) at the corresponding position. The outer wall of the scroll (36) is wrapped with a waterproof cloth (37) that is fixedly connected to the slider (34) at the corresponding position. A spring is provided between the cover (35) and the scroll (36) at the corresponding position.

4. The detection and alarm device for smart manhole covers according to claim 3, characterized in that, A support spring (39) is fixedly connected between the slider (34) and the rectangular frame (31) at the corresponding position.

5. The detection and alarm device for smart manhole covers according to claim 4, characterized in that, Silicone pads are fixedly connected to the inner top and bottom surfaces of the V-shaped shell (32).

6. The detection and alarm device for smart manhole covers according to claim 5, characterized in that, The mounting mechanism (1) includes a fixing plate (11). A base plate (12) is fixedly connected to four rectangular frames (31) below the fixing plate (11). Mounting feet (13) are fixedly connected to both ends of the top surface of the fixing plate (11). Sleeves (14) are fixedly connected to the four corners of the bottom surface of the fixing plate (11). A sleeve rod (15) fixedly connected to the base plate (12) is slidably sleeved inside the sleeve (14). A support spring is fixedly connected between the sleeve (14) and the sleeve rod (15) at the corresponding position. A silicone sleeve (16) is fixedly connected to the four corners between the base plate (12) and the fixing plate (11) and located outside the sleeve (14).

7. The detection and alarm device for smart manhole covers according to claim 6, characterized in that, The package consists of a retaining ring (21) and a retaining sleeve (22). The retaining ring (21) is fixedly connected to the retaining sleeve (22) at the corresponding position. The retaining sleeve (22) is made of silicone.

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