Fixing structure capable of preventing well lid from sliding

Abstract

The utility model relates to the technical field of well lids, and discloses a fixing structure capable of preventing a well lid from slipping, which comprises a well lid main body, a fixing mechanism is arranged in the well lid main body, and the fixing mechanism comprises a screw rod, two connecting rods, two sliding blocks, a fixing block, two rotating rods, two fixing rods, two limiting blocks, two connecting blocks and two pressure springs. A well base is arranged outside the well lid body, four adjusting mechanisms are arranged in the well lid body, and each adjusting mechanism comprises four rotating blocks, four springs and four through holes. According to the manhole cover, by rotating the threaded rod, the sliding block moves along the outer portion of the threaded rod, the connecting rod is driven to rotate, the limiting block can be firmly embedded into the manhole base, therefore, tight fixing between the manhole cover body and the manhole base is achieved, the manhole cover is prevented from sliding, and meanwhile the inner adjusting mechanism can relieve direct impact of rainwater on the manhole cover body, and the manhole cover is prevented from being damaged. And the rainwater drainage and dredging efficiency is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a fixing structure capable of preventing the manhole cover from sliding. Background Art

[0002] As a core component of the urban infrastructure system, manhole covers are crucial to maintaining public safety through proper maintenance and management. These indispensable facilities are widely used to cover the entry points of various underground network systems, such as sewage systems, water supply networks, power cable channels, and communication lines. They aim to ensure the safety of pedestrians and vehicles, effectively prevent accidental falls, and effectively protect underground facilities from external damage.

[0003] For cost considerations, most existing manhole covers use cast concrete structures. After being frequently and continuously crushed by cars, the surrounding area of ​​the manhole seat may be damaged, causing the manhole cover to loosen. When a large number of vehicles pass by, the manhole cover may be displaced. In addition, when encountering heavy rain, the large amount of accumulated rainwater forms a strong impact force, which may break open the manhole cover and cause it to shift.

[0004] Therefore, the utility model provides a fixing structure capable of preventing the manhole cover from slipping, so as to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a fixing structure that can prevent the manhole cover from slipping. The connection between the manhole cover and the manhole seat is achieved through a fixing mechanism inside the manhole cover body, which effectively prevents the manhole cover from slipping. The internal adjustment mechanism can not only reduce the impact of a large amount of rainwater, but also speed up the efficiency of rainwater discharge.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fixing structure capable of preventing a manhole cover from slipping comprises a manhole cover body, a fixing mechanism is arranged inside the manhole cover body, the fixing mechanism comprises a screw, two connecting rods, two sliding blocks, a fixing block, two rotating rods, two fixing rods, two limiting blocks, two connecting blocks and two compression springs, and a manhole seat is arranged outside the manhole cover body;

[0008] Four adjustment mechanisms are arranged inside the manhole cover body, and the four adjustment mechanisms include four rotating blocks, four springs and four through holes;

[0009] Through the above technical scheme, the screw in the fixing mechanism is rotated to drive the slider to slide and the connecting rod to rotate. At the same time, the rotating rod at the upper end of the fixing block is rotated, so that the limit block is clamped inside the well seat. When a large amount of rainwater accumulates on the upper end of the well cover body, the rotating block rotates inside the well cover body and squeezes the spring connected to it to shrink it. When there is less rainwater, the outer part of the rotating block fits with the well cover body, allowing rainwater to flow into the well through the through hole.

[0010] Furthermore, the screw rod is externally threadedly connected to the inside of the manhole cover body, the slider is internally threadedly connected to the screw rod, the two connecting rods are rotatably arranged on opposite sides of the slider, and the two connecting rods are rotatably arranged on opposite sides of the two limit blocks;

[0011] Through the above technical solution, when adjusting the screw rod, the slider can be driven to move synchronously, so that the connecting rod can be linked to the limit block, effectively improving the connection tightness between the manhole cover and the manhole seat, and preventing the manhole cover from slipping due to uneven force and vibration.

[0012] Further, both ends of the outer sides of the two fixed rods are fixedly arranged inside the limit blocks, the inner sides of the two connecting blocks are slidably arranged outside the fixed rods, the lower ends of the two compression springs are respectively fixedly arranged inside the two limit blocks near the lower ends, the upper ends of the two compression springs are respectively fixedly arranged at the lower ends of the two connecting blocks, the inner sides of the two compression springs are respectively sleeved outside the two fixed rods, the two connecting blocks are rotatably arranged on the opposite sides of the two rotating rods on the opposite sides of the two rotating rods on the opposite sides, the two rotating rods are rotatably arranged on both sides of the fixed blocks on the opposite sides, and the upper end of the fixed block is rotatably arranged at the lower end of the screw rod;

[0013] Through the above technical solution, when the screw rotates, it will drive the rotating rod to rotate, so that it pushes the limit block outward, and makes the connecting block connected to the rotating rod slide along the fixed rod inside the limit block, and squeeze the compression springs at the lower and upper ends of the connecting block, thereby achieving the fixation of the manhole cover body and the manhole seat to prevent deviation.

[0014] Further, the four rotating blocks are rotatably arranged on opposite sides of two by two inside the manhole cover body, the four springs are respectively fixedly arranged on opposite sides of two by two at the lower ends of the four rotating blocks, the four springs are respectively fixedly arranged on opposite sides of two by two at the lower ends of the manhole cover body, and the outsides of the four through holes are respectively opened inside the four rotating blocks;

[0015] Through the above technical solution, the rotating block in the adjustment mechanism can rotate inside the manhole cover body. The elastic action of the spring ensures that the rotating block can automatically adjust the angle according to the force conditions of the manhole cover. The through hole provides a good drainage function to prevent water accumulation from affecting the stability of the manhole cover, enabling the manhole cover to adapt to load changes and effectively prevent the manhole cover from slipping due to overloading and water accumulation.

[0016] Furthermore, a fixing ring is fixedly arranged on the outside of the manhole cover body, and four positioning columns are fixedly arranged on the upper end of the manhole seat;

[0017] Through the above technical solution, a fixing ring is fixed on the outside of the manhole cover body to reduce the manhole cover from being crushed by vehicles for a long time, provide protection for the manhole cover body, and the positioning column facilitates the installation of the manhole cover.

[0018] Furthermore, four positioning holes are provided inside the fixing ring, and the outsides of the four positioning posts are slidably arranged inside the four positioning holes respectively;

[0019] Through the above technical solution, the fixing ring on the outside of the manhole cover body is combined with the positioning column at the upper end of the well seat, and the positioning column is inserted into the positioning hole in the fixing ring, forming a precise positioning and locking mechanism, reducing the possibility of horizontal slippage of the manhole cover during normal use.

[0020] Furthermore, a protective net is fixedly arranged at the lower end of the well seat, and reinforcing ribs are fixedly arranged at the lower end of the well seat;

[0021] Through the above technical solution, the internal protective net can prevent large foreign objects from entering the well, and the reinforcing ribs increase the bearing capacity and compressive resistance of the well seat.

[0022] The utility model has the following beneficial effects:

[0023] 1. The utility model proposes a fixing structure that can prevent the manhole cover from slipping. When the manhole cover is fixed to the manhole seat, the screw inside the manhole cover body is rotated to drive the slider to move and the connecting rod to rotate. As the position of the slider changes, the limit block originally inside will expand and unfold outward, and at the same time, drive the rotating rod connected to the limit block to rotate with it. The connecting block slides on the surface of the fixed rod inside the limit block and squeezes the compression spring below, so that a stable and tight connection is formed between the manhole cover body and the manhole seat, thereby preventing the risk of sliding of the manhole cover when in use. The fixing ring outside the manhole cover can protect the manhole cover body and reduce the damage caused by long-term rolling of vehicles.

[0024] 2. The utility model proposes a fixed structure that can prevent the manhole cover from slipping. When a large amount of rainwater accumulates on the top of the manhole cover body, the pressure generated by the rainwater will directly act on the rotating block inside the manhole cover body, forcing the rotating block to rotate. At the same time, the spring connected to the rotating block is also compressed under the action of rainwater pressure. When the rainwater gradually subsides, the pressure on the spring also decreases. At this time, the spring can return to its initial state with the help of its own elastic force, and then drive the rotating block back to its original position, so that the manhole cover can automatically adjust according to the change of rainwater flow. It has a self-adaptive adjustment function, which can not only effectively reduce the slippage caused by direct impact of rainwater on the manhole cover body, but also improve the drainage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an axonometric schematic diagram of the utility model;

[0026] Figure 2 It is an axonometric schematic diagram of the utility model near the lower end of the well seat;

[0027] Figure 3 It is a front cross-sectional schematic diagram of the utility model;

[0028] Figure 4 For this utility model Figure 3 A is an enlarged schematic diagram;

[0029] Figure 5 For this utility model Figure 3 The enlarged schematic diagram of point B in FIG.

[0030] Legend:

[0031] 1. Manhole cover body; 2. Manhole seat; 3. Positioning hole; 4. Fixing ring; 5. Fixing mechanism; 6. Adjusting mechanism; 7. Reinforcing ribs; 8. Protective net; 9. Positioning column; 501. Screw; 502. Connecting rod; 503. Sliding block; 504. Fixed block; 505. Rotating rod; 506. Fixed rod; 507. Limiting block; 508. Connecting block; 509. Compression spring; 601. Rotating block; 602. Spring; 603. Through hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-5 , an embodiment provided by the utility model:

[0034] A fixing structure for preventing a manhole cover from slipping comprises a manhole cover body 1, a fixing mechanism 5 is arranged inside the manhole cover body 1, the fixing mechanism 5 comprises a screw 501, two connecting rods 502, two sliders 503, a fixing block 504, two rotating rods 505, two fixing rods 506, two limit blocks 507, two connecting blocks 508 and two compression springs 509, a manhole cover body 1 is provided with a well seat 2 outside, the screw 501 is externally threadedly connected to the inside of the manhole cover body 1, the slider 503 is internally threadedly connected to the screw 501 rod, the two connecting rods 502 are arranged on both sides of the slider 503 for rotation on opposite sides, and the two connecting rods 502 are arranged on two limit blocks for rotation on opposite sides On the opposite side of the block 507, both ends of the outer sides of the two fixed rods 506 are fixedly arranged inside the limit block 507, the inner sides of the two connecting blocks 508 are slidably arranged outside the fixed rod 506, the lower ends of the two compression springs 509 are respectively fixedly arranged inside the two limit blocks 507 near the lower ends, the upper ends of the two compression springs 509 are respectively fixedly arranged at the lower ends of the two connecting blocks 508, the inner sides of the two compression springs 509 are respectively sleeved on the outer sides of the two fixed rods 506, the two connecting blocks 508 are rotatably arranged on the opposite side of the two rotating rods 505 on the opposite side, the two rotating rods 505 are rotatably arranged on both sides of the fixed block 504 on the opposite side, and the upper end of the fixed block 504 is rotatably arranged at the lower end of the screw 501;

[0035] When installing the manhole cover body 1 on the upper end of the manhole seat 2, the staff will place the manhole cover body 1 on the top of the manhole seat 2, and use the positioning hole 3 on the fixing ring 4 outside the manhole cover body 1 to dock with the positioning column 9 at the upper end of the manhole seat 2. The two are tightly combined by sliding cooperation, which can prevent the manhole cover body 1 from unnecessary sliding during use. Subsequently, the operator rotates the screw 501 inside the manhole cover body 1, thereby driving the slider 503 outside the screw 501 to move, and causing the connecting rod 502 connected to the slider 503 to rotate accordingly. As the slider 503 moves, the two limit blocks 507 will be pushed to expand outward, and at the same time drive the rotating rod 505 connected thereto to rotate. At this time, the connecting block 508 will slide on the fixing rod 506 fixed inside the limit block 507, and produce an extrusion effect on the compression spring 509 below, thereby achieving a tight fixation between the manhole cover body 1 and the manhole seat 2 to prevent the risk of the manhole cover slipping.

[0036] Four adjustment mechanisms 6 are arranged inside the manhole cover body 1. The four adjustment mechanisms 6 include four rotating blocks 601, four springs 602 and four through holes 603. The four rotating blocks 601 are rotatably arranged on opposite sides of each other inside the manhole cover body 1. The four springs 602 are fixedly arranged on opposite sides of each other at the lower ends of the four rotating blocks 601. The four springs 602 are fixedly arranged on opposite sides of each other at the lower ends of the manhole cover body 1. The outsides of the four through holes 603 are respectively opened inside the four rotating blocks 601.

[0037] When a lot of rainwater accumulates above the manhole cover body 1, the pressure of the rainwater will act on the four rotating blocks 601 inside the manhole cover body 1, forcing it to rotate and compressing the spring 602 connected to it. When the rainwater gradually decreases and the pressure on the spring 602 is reduced, it will gradually return to its original state, thereby pushing the rotating block 601 to reset, so that it can be self-regulated according to the size of the rainwater flow rate and has adaptive regulation capabilities. It can not only reduce the impact of rainwater directly on the manhole cover body 1, but also play a certain drainage regulation role.

[0038] A fixing ring 4 is fixedly arranged on the outside of the manhole cover body 1, and the fixing ring 4 can effectively alleviate the impact and wear of the manhole cover when it is frequently rolled over by vehicles for a long time, and plays an important role in reinforcing and protecting the manhole cover body 1. Four positioning columns 9 are fixedly arranged on the upper end of the well seat 2, and four positioning holes 3 are opened inside the fixing ring 4. The outsides of the four positioning columns 9 are respectively slidably arranged inside the four positioning holes 3. When the manhole cover is installed, the positioning columns 9 and the positioning holes 3 ensure that the manhole cover can be accurately placed in place, so that the positioning columns 9 can be smoothly inserted into the corresponding positioning holes 3 inside the fixing ring 4, so that in actual application During use, the probability of the manhole cover slipping in the horizontal direction under normal load and traffic pressure is significantly reduced, ensuring that the manhole cover is stable and reliable, and effectively improving the public safety factor. A protective net 8 is fixedly arranged at the lower end of the well seat 2, and reinforcing ribs 7 are fixedly arranged at the lower end of the well seat 2. The protective net 8 arranged inside the well seat 2 can prevent large foreign objects from entering the well. At the same time, the reinforcing ribs 7 increase the bearing capacity and compressive resistance of the well seat 2. Under the double protection, even in extreme situations, it can effectively prevent the manhole cover from sliding out of the wellhead due to excessive force, ensuring the long-term and stable use of the manhole cover and the safety of pedestrians and vehicles.

[0039] Working principle: When the operator puts the manhole cover body 1 into the upper end of the manhole seat 2 during use, the positioning hole 3 opened in the fixing ring 4 is slid into the upper end of the manhole seat 2 through the positioning column 9 at the upper end of the manhole seat 2 to prevent the manhole cover body 1 from slipping. The operator rotates the screw 501 inside the manhole cover body 1 and drives the slider 503 outside it, thereby rotating the connecting rod 502 connected to the slider 503, so that the two limit blocks 507 move outward, and at the same time drives the rotating rod 505 to rotate, and the connecting block 508 is moved between the limit blocks 507. The internal fixing rod 506 slides outward to squeeze the compression spring 509 at the lower end of the connecting block 508, thereby realizing the connection between the manhole cover body 1 and the manhole seat 2 to prevent slippage. When there is too much rainwater on the upper end of the manhole cover body 1, the rainwater will squeeze the rotating block 601, causing it to rotate inside the manhole cover body 1, and squeeze the spring 602 to shrink. When the rainwater gradually becomes smaller, the force applied to the spring 602 becomes smaller, causing the rotating block 601 to slowly reset, thereby realizing automatic control of the flow rate and reducing the impact of rainwater on the manhole cover body 1.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixing structure capable of preventing a manhole cover from slipping, comprising a manhole cover body (1), Features: A fixing mechanism (5) is arranged inside the manhole cover body (1), and the fixing mechanism (5) comprises a screw rod (501), two connecting rods (502), two sliding blocks (503), a fixing block (504), two rotating rods (505), two fixing rods (506), two limiting blocks (507), two connecting blocks (508) and two compression springs (509); and a manhole seat (2) is arranged outside the manhole cover body (1); Four adjustment mechanisms (6) are arranged inside the manhole cover body (1), and the four adjustment mechanisms (6) include four rotating blocks (601), four springs (602) and four through holes (603).

2. A fixing structure capable of preventing a manhole cover from slipping according to claim 1, Features: The screw rod (501) is externally threadedly connected to the inside of the manhole cover body (1), the slider (503) is internally threadedly connected to the screw rod (501), the two connecting rods (502) are rotatably arranged on opposite sides of the slider (503), and the two connecting rods (502) are rotatably arranged on opposite sides of the two limit blocks (507).

3. A fixing structure capable of preventing a manhole cover from slipping according to claim 1, Features: Both ends of the exterior of the two fixed rods (506) are fixedly arranged inside the limit blocks (507), the interiors of the two connecting blocks (508) are slidably arranged outside the fixed rods (506), the lower ends of the two compression springs (509) are respectively fixedly arranged inside the two limit blocks (507) near the lower ends, the upper ends of the two compression springs (509) are respectively fixedly arranged at the lower ends of the two connecting blocks (508), the interiors of the two compression springs (509) are respectively sleeved on the exteriors of the two fixed rods (506), the two connecting blocks (508) are rotatably arranged on the opposite sides of the two rotating rods (505) on the opposite sides, the two rotating rods (505) are rotatably arranged on both sides of the fixed block (504), and the upper end of the fixed block (504) is rotatably arranged on the lower end of the screw rod (501).

4. A fixing structure capable of preventing a manhole cover from slipping according to claim 1, Features: The four rotating blocks (601) are rotatably arranged on opposite sides of each other in pairs inside the manhole cover body (1), the four springs (602) are fixedly arranged on opposite sides of each other in pairs at the lower ends of the four rotating blocks (601), the four springs (602) are fixedly arranged on opposite sides of each other in pairs at the lower ends of the manhole cover body (1), and the outsides of the four through holes (603) are respectively opened inside the four rotating blocks (601).

5. A fixing structure capable of preventing a manhole cover from slipping according to claim 1, Features: A fixing ring (4) is fixedly arranged on the outside of the manhole cover body (1), and four positioning columns (9) are fixedly arranged on the upper end of the manhole seat (2).

6. A fixing structure capable of preventing a manhole cover from slipping according to claim 5, Features: Four positioning holes (3) are provided inside the fixing ring (4), and the outsides of the four positioning posts (9) are respectively slidably arranged inside the four positioning holes (3).

7. A fixing structure capable of preventing a manhole cover from slipping according to claim 1, Features: A protective net (8) is fixedly arranged inside the well seat (2) near the lower end, and reinforcing ribs (7) are fixedly arranged at the lower end of the well seat (2).

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