Municipal well lid anti-theft structure with adjustable height

Abstract

The utility model discloses a height-adjustable municipal well lid anti-theft structure, which belongs to the field of well lid components and comprises a well seat body, a middle hole is formed in the surface of the well seat body, a supporting cylinder is arranged on the upper surface of the well seat body, and the height of the well lid can be adjusted through the arrangement of the supporting cylinder, a threaded groove, a threaded cylinder, the well lid body and other structures. When the well lid body sinks, a worker rotates the well lid body to drive the threaded barrel to rotate synchronously, and the threaded barrel rotates on the outer surface of the threaded groove, so that the well lid body slides upwards and is flush with the ground, and it is guaranteed that pedestrians or vehicles can pass normally; the anti-theft part on the lower surface of the well lid body is clamped into the surface of the limiting cylinder, so that the situation that the well lid body is taken up at will and stolen is avoided, the stealing difficulty is greatly increased, the stealing time is greatly shortened, the stolen well lid is found more easily, and then the tragedies causing personal injuries are reduced.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover component technology, specifically an adjustable height municipal manhole cover anti-theft structure. Background Technology

[0002] There are various types of protective manhole covers on the market. These protective manhole covers are mostly composed of a base and a cover. When the cover is damaged or stolen, pedestrians may accidentally fall into it, causing a safety accident.

[0003] Existing municipal manhole covers are not easy to adjust in height. As roads are constantly being repaired, the height of the manhole surface will change. If the height of the manhole opening is lower than the height of the road surface, the height of the top surface of the manhole cover will be lower than the road surface, which can easily cause pedestrians or vehicles to fall, which is not conducive to the normal operation of the road. In addition, existing manhole covers are easy to be stolen, and their safety hazards may persist for several months. It is difficult to increase the anti-theft performance of manhole covers, increase the difficulty and time of theft, and make it easier to detect theft of manhole covers.

[0004] Therefore, this utility model provides an adjustable-height anti-theft structure for municipal manhole covers to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides an adjustable height anti-theft structure for municipal manhole covers, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] The well cover includes a base body with a central hole on its surface. A support cylinder is provided on the upper surface of the base body, and a threaded groove is provided on the outer surface of the support cylinder. A matching threaded cylinder is threadedly connected to the outer surface of the threaded groove. A well cover body is fixedly installed on the top of the inner wall of the threaded cylinder. An annular groove is provided on the inner wall of the support cylinder, and a limiting cylinder is slidably connected inside the annular groove. A first sliding groove is provided on the lower surface of the well cover body, and a bidirectional lead screw is rotatably connected inside the first sliding groove. Anti-theft components are threadedly connected to both sides of the outer surface of the bidirectional lead screw, and the anti-theft components are slidably connected to the two sides of the limiting cylinder.

[0010] As a preferred technical solution of this application, a connecting cylinder is fixedly installed on the lower surface of the manhole cover body, and an annular connecting groove is opened on the surface of the supporting cylinder, and the connecting cylinder is slidably connected inside the annular connecting groove.

[0011] As a preferred technical solution of this application, a driven bevel gear is fixedly installed in the middle of the outer surface of the bidirectional lead screw, and a driving bevel gear is meshed above the driven bevel gear. A telescopic column is fixedly installed inside the driving bevel gear.

[0012] As a preferred technical solution of this application, a connecting spring is fixedly installed inside the telescopic column, a driving component is fixedly installed on the top of the telescopic column, a snap-fit ​​groove is opened on the surface of the driving component, and the material of the driving component is a permanent magnet.

[0013] As a preferred technical solution of this application, the inner and outer columns of the telescopic column are fixedly installed with connecting rings, and a number of transmission telescopic components are arranged between the connecting rings on the upper and lower sides.

[0014] As a preferred technical solution of this application, an installation ring is fixedly installed on the inner sidewall of the central hole, a snap-in hole is opened on the surface of the installation ring, a limiting arc groove is opened at the bottom of the snap-in hole, a fixing member is slidably connected inside the limiting arc groove, a filter plate is fixedly installed on the outer surface of the fixing member, and limiting bolts are threaded through the two sides of the surface of the installation ring, and the limiting bolts are threaded through the surface of the fixing member.

[0015] (III) Beneficial Effects

[0016] By incorporating a support cylinder, threaded groove, threaded cylinder, and manhole cover body, when the manhole cover body sinks, workers rotate the manhole cover body to drive the threaded cylinder to rotate synchronously. The threaded cylinder rotates on the outer surface of the threaded groove, causing the manhole cover body to slide upwards and level with the ground, ensuring that pedestrians or vehicles can pass normally. The anti-theft component on the lower surface of the manhole cover body is engaged with the surface of the limiting cylinder, thereby preventing the manhole cover body from being picked up and stolen at will. This greatly increases the difficulty and time required for theft, making it easier for manhole covers to be stolen, and thus reducing the occurrence of tragedies that cause personal injury. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an adjustable-height anti-theft structure for municipal manhole covers;

[0018] Figure 2 This is a frontal cross-sectional view of an adjustable-height municipal manhole cover anti-theft structure.

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of the threaded cylinder and the manhole cover body in an adjustable-height municipal manhole cover anti-theft structure.

[0021] Figure 5 A schematic diagram of the driven bevel gear and the driving bevel gear structure in an adjustable-height municipal manhole cover anti-theft structure;

[0022] Figure 6 for Figure 5 A magnified structural diagram at point B in the middle.

[0023] In the picture:

[0024] 1. Well base body; 2. Support cylinder; 3. Threaded groove; 4. Threaded cylinder; 5. Well cover body; 6. Annular groove; 7. Limiting cylinder; 8. Two-way lead screw; 9. Anti-theft component; 10. Driven bevel gear; 11. Driving bevel gear; 12. Telescopic column; 13. Connecting cylinder; 14. Driving component; 15. Transmission telescopic component; 16. Mounting ring; 17. Filter plate; 18. Connecting spring. Detailed Implementation

[0025] 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.

[0026] This utility model provides an adjustable-height anti-theft structure for municipal manhole covers, such as... Figures 1 to 6 As shown, the well base body 1 includes a central hole on its surface. A support cylinder 2 is provided on the upper surface of the well base body 1. A threaded groove 3 is provided on the outer surface of the support cylinder 2. A matching threaded cylinder 4 is threadedly connected to the outer surface of the threaded groove 3. A well cover body 5 is fixedly installed on the top of the inner wall of the threaded cylinder 4. An annular groove 6 is provided on the inner wall of the support cylinder 2. A limiting cylinder 7 is slidably connected inside the annular groove 6. A first sliding groove is provided on the lower surface of the well cover body 5. A bidirectional screw 8 is rotatably connected inside the first sliding groove. Anti-theft parts 9 are threadedly connected to both sides of the outer surface of the bidirectional screw 8. The anti-theft parts 9 are slidably connected to the two sides of the limiting cylinder 7.

[0027] A connecting cylinder 13 is fixedly installed on the lower surface of the manhole cover body 5, and an annular connecting groove is opened on the surface of the support cylinder 2, and the connecting cylinder 13 is slidably connected inside the annular connecting groove.

[0028] A driven bevel gear 10 is fixedly installed in the middle of the outer surface of the bidirectional lead screw 8. A driving bevel gear 11 is meshed above the driven bevel gear 10. A telescopic column 12 is fixedly installed inside the driving bevel gear 11.

[0029] A connecting spring 18 is fixedly installed inside the telescopic column 12, and a driving component 14 is fixedly installed on the top of the telescopic column 12. The surface of the driving component 14 is provided with a snap-fit ​​groove, and the material of the driving component 14 is a permanent magnet.

[0030] The inner and outer surfaces of the telescopic column 12 are fixedly equipped with connecting rings, and several transmission telescopic components 15 are provided between the upper and lower connecting rings.

[0031] An installation ring 16 is fixedly installed on the inner wall of the central hole. The surface of the installation ring 16 has a snap-in hole. A limiting arc groove is opened at the bottom of the snap-in hole. A fixing component is slidably connected inside the limiting arc groove. A filter plate 17 is fixedly installed on the outer surface of the fixing component. Limiting bolts are threaded through the two sides of the surface of the installation ring 16. The limiting bolts are threaded through the surface of the fixing component.

[0032] Working principle: When the manhole cover body 5 sinks, the staff can rotate the manhole cover body 5 to drive the threaded cylinder 4 on the outer surface to rotate synchronously. The threaded cylinder 4 moves upward under the threaded connection of the threaded groove 3, thereby driving the top manhole cover body 5 to slide upward. The manhole cover body 5 is locked into the inside of the limiting cylinder 7 by the anti-theft part 9 on the lower surface, and the bottom of the limiting cylinder 7 can only slide inside the annular groove 6. The manhole cover body 5 can only slide inside the limiting cylinder 7 by the anti-theft part 9 below. Thieves cannot quickly and easily steal the manhole cover body 5, thereby avoiding the situation where the manhole cover body 5 is picked up and stolen at will. This greatly increases the difficulty and time of theft, making it easier to detect the theft of manhole covers, thereby reducing the occurrence of tragedies that cause personal injury.

[0033] When the manhole cover body 5 needs to be disassembled, the operator needs to use a magnetic tool to attract and connect the drive component 14. Then, the drive component 14 drives the telescopic column 12 to pull outward, causing the connecting spring 18 to deform. The inner column of the telescopic column 12 extends outward and slides, driving the connecting ring to move synchronously. The connecting ring drives the outer column of the telescopic column 12 to rotate synchronously through the transmission telescopic component 15 below. The outer column of the telescopic column 12 drives the active bevel gear 11 to rotate. The active bevel gear 11 drives the driven bevel gear 10 below to rotate. The driven bevel gear 10 drives the internal double-acting screw 8 to rotate. The rotation of the double-acting screw 8 causes the anti-theft components 9 on both sides to disengage from the surface of the limiting cylinder 7. Then, the manhole cover body 5 drives the threaded cylinder 4 on the outer surface to rotate and disengage from the surface of the support cylinder 2, thus completing the disassembly operation of the manhole cover body 5.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable height anti-theft structure of a municipal manhole cover, comprising a well seat body (1), characterized in that: The surface of the well seat body (1) is provided with a hole, the upper surface of the well seat body (1) is provided with a supporting cylinder (2), the outer surface of the supporting cylinder (2) is provided with a threaded groove (3), the outer surface of the threaded groove (3) is threadedly connected with a matched threaded cylinder (4), the inner side wall of the threaded cylinder (4) is fixedly installed with a well lid body (5) at the top, the inner side wall of the supporting cylinder (2) is provided with an annular groove (6), the inside of the annular groove (6) is slidably connected with a limiting cylinder (7), the lower surface of the well lid body (5) is provided with a first sliding groove, the inside of the first sliding groove is rotatably connected with a bidirectional screw rod (8), the outer surface of the bidirectional screw rod (8) is threadedly connected with an anti-theft piece (9) on both sides, and both sides of the anti-theft piece (9) are slidably connected to the surfaces of the limiting cylinder (7) on both sides.

2. The height-adjustable anti-theft structure of a municipal manhole cover according to claim 1, characterized in that: The lower surface of the well lid body (5) is fixedly installed with a connecting cylinder (13), the surface of the supporting cylinder (2) is provided with an annular connecting groove, and the inside of the annular connecting groove is slidably connected with the connecting cylinder (13).

3. The height-adjustable anti-theft structure of a municipal manhole cover according to claim 1, characterized in that: The outer surface of the bidirectional screw rod (8) is fixedly installed with a driven bevel gear (10) in the middle, the upper side of the driven bevel gear (10) is engagedly connected with a driving bevel gear (11), and the inside of the driving bevel gear (11) is fixedly installed with a telescopic column (12).

4. The adjustable-height anti-theft structure for municipal manhole covers according to claim 3, characterized in that: The inside of the telescopic column (12) is fixedly installed with a connecting spring (18), the top of the telescopic column (12) is fixedly installed with a driving piece (14), the surface of the driving piece (14) is provided with a clamping groove, and the material of the driving piece (14) is a permanent magnet.

5. The adjustable-height anti-theft structure for municipal manhole covers according to claim 4, characterized in that: The surfaces of the inner column and the outer column of the telescopic column (12) are fixedly installed with connecting rings, and a plurality of transmission telescopic pieces (15) are arranged between the connecting rings on the upper side and the lower side.

6. The adjustable-height anti-theft structure for municipal manhole covers according to claim 1, characterized in that: The inner side wall of the hole is fixedly installed with a mounting ring (16), the surface of the mounting ring (16) is provided with a clamping hole, the bottom of the clamping hole is provided with a limiting arc groove, the inside of the limiting arc groove is slidably connected with a fixing piece, the outer surface of the fixing piece is fixedly installed with a filter plate (17), and the surfaces of the mounting ring (16) are threadedly connected with limiting bolts on both sides. The surfaces of the inner column and the outer column of the telescopic column (12) are fixedly installed with connecting rings, and a plurality of transmission telescopic pieces (15) are arranged between the connecting rings on the upper side and the lower side.

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