Height-adjustable well lid leveling gasket

Abstract

The utility model relates to the field of road repair, and discloses a height-adjustable well lid leveling pad which comprises a supporting pad, a bottom pad and a square pad. The supporting pad is matched with one or more bottom pads and connected to the edge of the well lid, the side back portion of the supporting pad is connected with one or more square pads, and the upper portions of the bottom pads are detachably connected to the bottom of the supporting pad. Compared with the prior art, the supporting pad is arranged on the edge of the well lid in advance and is also used for positioning the bottom pad, so that the leveling pad is more convenient to install. In addition, the leveling pad can adjust the vertical height difference between the well lid and the well seat by adjusting the number or the thickness of the bottom pads. The horizontal gap between the well lid and the well seat can be adjusted by adjusting the number and the thickness of the square pads. The leveling pad provided by the utility model not only plays a role in leveling, but also plays a role in damping, thereby reducing the vicious cycle damage of the whole inspection well or the well lid or the well seat and the surrounding road surface caused by vehicle bumping.

Description

Technical Field

[0001] The utility model belongs to the field of road repair, in particular to a height-adjustable manhole cover leveling pad. Background Art

[0002] The manhole cover (including the manhole cover seat) of the inspection well is an important supporting facility of the underground pipe network system. It can play a certain protective role for underground pipelines and pipe wells, and provide convenience for the maintenance of underground pipelines and pipe wells. After the manhole cover is installed on the manhole seat fixed on the road surface, it needs to continuously bear the vehicle load. In the long run, the manhole cover and the manhole seat will become loose and worn, resulting in vertical settlement and horizontal dislocation, and the manhole cover and the manhole seat will be damaged or deformed. When the vehicle runs over, the vehicle jumps and causes continuous damage to the surrounding road surface, which in turn causes the overall or partial damage or deformation of the inspection well; the vehicle jump phenomenon will also cause certain traffic noise and even traffic accidents, seriously affecting the city's image and vehicle driving safety.

[0003] In order to overcome the above problems, shock-absorbing pads are generally added to the manhole covers. The existing shock-absorbing pads are generally rubber rings or rubber gaskets. These two types of shock-absorbing pads have the following defects:

[0004] 1. The existing shock-absorbing pads have a certain shock-absorbing effect, but they cannot adjust the vertical height difference and horizontal gap between the manhole cover and the manhole seat, especially the uneven vertical height difference between the manhole cover and the manhole seat. 2. The materials used in the existing shock-absorbing pads are not wear-resistant and durable, and the hardness is not enough. The adaptability to the stress state of the manhole cover and the manhole seat is poor, and the shock-absorbing effect is limited. 3. Continuous dynamic pressure can easily cause the existing shock-absorbing pads to tilt and shift, making installation difficult, maintenance frequent and costly.

[0005] In summary, the existing shock-absorbing pads mainly have the defects of poor material adaptability, difficulty in installation and maintenance, and non-adjustable height. Utility Model Content

[0006] The utility model provides a height-adjustable manhole cover leveling pad, which is used to solve the problems existing in the prior art.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A height-adjustable manhole cover leveling pad comprises a supporting pad, a bottom pad and a square pad. The supporting pad is matched with one or more bottom pads, the supporting pad is connected to the edge of the manhole cover, the side back of the supporting pad is connected to one or more square pads, and the upper part of the bottom pad is detachably connected to the bottom of the supporting pad.

[0009] Through the above technical solution, the support pad, bottom pad and square pad together play a role in leveling the manhole cover and the manhole seat. Compared with the existing technology, the installation of the leveling pad of the utility model is more convenient. In addition, the leveling pad of the utility model can adjust the vertical height difference between the manhole cover and the manhole seat by adjusting the number or thickness of the bottom pads; the horizontal gap between the manhole cover and the manhole seat can be adjusted by adjusting the number or thickness of the square pads. The leveling pad of the utility model has both a leveling effect and a shock-absorbing effect, thereby reducing the occurrence of vicious cycle damage to the inspection well as a manhole cover or a manhole seat and the surrounding road surface caused by vehicle jumping.

[0010] Preferably, the support pad includes an upper section, a middle section and a lower section, the upper section, the middle section and the lower section are a whole, the upper section and the lower section are parallel, the outward slope of the middle section and the lower section is 1 / 10, and the inner side of the support pad is adhered to the edge of the manhole cover by double-sided tape or adhesive backing.

[0011] Preferably, the square pad is adhered to the outer side of the middle section of the support pad by double-sided adhesive or adhesive backing.

[0012] Preferably, a plurality of first mortise and tenons are provided on the bottom side of the lower section of the support pad, a plurality of convex tenons corresponding to the first mortise and tenons are provided on the top side of the bottom pad, and the mortise and tenon of the bottom pad are connected to the bottom side of the lower section of the support pad.

[0013] Preferably, a second concave mortise corresponding to the convex tenon is provided on the bottom side of the base pad, and a plurality of base pads are vertically stacked, and two adjacent base pads are connected by mortise and tenon.

[0014] Preferably, the top view projection of the supporting pad and the bottom pad is rectangular.

[0015] Preferably, the top view projection of the supporting pad and the bottom pad is fan-shaped.

[0016] Preferably, the materials of the support pad, the bottom pad and the square pad include but are not limited to EPDM rubber.

[0017] The beneficial effects of the utility model are:

[0018] 1. The vertical height difference between the manhole cover and the manhole seat can be adjusted by adjusting the number or thickness of the bottom pads.

[0019] 2. The horizontal gap between the manhole cover and the manhole seat can be adjusted by adjusting the number or thickness of the square pads.

[0020] 3. The support pad and the bottom pad or the bottom pad are connected by a mortise and tenon structure, so that the bottom pad can be more firmly connected to the bottom of the support pad or another bottom pad, reducing misalignment and movement.

[0021] 4. Compared with the prior art, the leveling pad of the utility model is more convenient to install, and has both a leveling effect and a shock-absorbing effect, thereby reducing the occurrence of vicious cycle damage to the inspection well as a whole, the well cover, the well seat and the surrounding road surface caused by vehicle jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the height-adjustable manhole cover leveling pad in the first embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a height-adjustable manhole cover leveling pad in Embodiment 1 of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the support pad in the first embodiment of the utility model;

[0025] Figure 4 It is an oblique view of the bottom pad in the first embodiment of the utility model;

[0026] Figure 5 This is a bottom view of the bottom pad in the first embodiment of the utility model;

[0027] Figure 6 This is a layout and installation diagram of a height-adjustable manhole cover leveling pad in Embodiment 2 of the present utility model applied to a circular manhole;

[0028] Figure 7 This is the layout and installation diagram of the height-adjustable manhole cover leveling pad in Embodiment 3 of the utility model applied to a rectangular manhole.

[0029] Description of reference numerals:

[0030] 1. Upper section; 2. Middle section; 3. Lower section; 4. Bottom pad; 5. Square pad; 6. Adhesive backing; 7. First mortise and tenon; 8. Tenon; 9. Second mortise and tenon. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] This embodiment discloses a height-adjustable manhole cover leveling pad, which is used to solve the problems existing in the prior art.

[0033] Embodiment 1

[0034] Reference Figure 1 and Figure 2 The height-adjustable manhole cover leveling pad of this embodiment includes a supporting pad, a bottom pad 4 and a square pad 5. The supporting pad is equipped with one or more bottom pads 4, the bottom pad 4 is mortise and tenon connected to the bottom of the supporting pad, and the supporting pad is equipped with one or more square pads 5, which are connected to the outside of the supporting pad.

[0035] Through the above technical solution, the support pad, the bottom pad 4, and the square pad 5 together play a role in leveling the manhole cover and the manhole seat. Compared with the prior art, the installation of the leveling pad of the utility model is more convenient. In addition, the leveling pad of the utility model can adjust the vertical height difference between the manhole cover and the manhole seat by adjusting the number or thickness of the bottom pad 4; and can adjust the horizontal gap between the manhole cover and the manhole seat by adjusting the number or thickness of the square pad 5.

[0036] It needs to be explained that the support pad includes an upper section 1, a middle section 2 and a lower section 3, the upper section 1, the middle section 2 and the lower section 3 are a whole, the upper section 1 and the lower section 3 are parallel, and the outward slope of the middle section 2 and the lower section 3 is 1 / 10.

[0037] It should be explained that when installing the above-mentioned support pad, it is necessary to tear off the double-sided adhesive or the adhesive backing 6 and stick the U-shaped support pad to the edge of the manhole cover, so as to realize the convenient installation of the manhole cover leveling pad of the utility model.

[0038] Compared with the prior art, the angle between the middle section 2 of the support pad and the lower section 3 of the support pad is slightly greater than 90°, which can help lower the manhole cover. The middle section 2 of the support pad and the square pad 5 can effectively reduce the collision between the manhole cover and the side of the manhole seat, and reduce the vibration and noise generated when a vehicle passes through a loose manhole cover.

[0039] Among them, Figure 3 and Figure 4 As shown, a plurality of first mortises 7 arranged in an array are provided on the bottom side of the lower section 3 of the support pad. In the present embodiment, the first mortises 7 are circular, and a plurality of tenons 8 corresponding to the first mortises 7 are provided on the top side of the bottom pad 4. The bottom pad 4 is connected to the bottom side of the support pad by mortise and tenon.

[0040] Through the above technical solution, the bottom pad 4 and the supporting pad are fixed by a mortise and tenon structure. After adopting this structure, the connection between the bottom pad 4 and the supporting pad is more firm, and the mutual displacement movement between the two can be effectively reduced.

[0041] like Figure 4 and Figure 5 As shown, the bottom side of the base pad 4 is provided with a second recessed mortise 9 corresponding to the convex tenon 8. If multiple base pads 4 are required, the multiple base pads 4 need to be stacked vertically, and two adjacent base pads 4 are connected by mortise and tenon.

[0042] Through the above technical solution, the overall height of the leveling pad of the utility model can be flexibly adjusted. At the same time, the second concave mortise 7 arranged on the bottom side of the bottom pad 4 enhances the roughness and friction of the contact surface with the well seat, making the entire leveling pad structure more firm and stable.

[0043] The specific method of use of the embodiment of the utility model is:

[0044] Observe the manhole cover in detail to find out the cause of the problem, so as to determine whether the height of the leveling pad of the utility model needs to be adjusted. If the horizontal gap between the manhole cover and the manhole seat cannot be tightly filled with the middle section of the support pad, it is necessary to add a square pad appropriately; if the vertical height difference between the manhole cover and the manhole seat is large, it is necessary to add a bottom pad 4 appropriately.

[0045] The operating specifications that require attention are as follows:

[0046] (1) After opening the manhole cover, it is advisable to clean the dust, rust, oil stains and water marks on the manhole cover and the manhole seat, otherwise it may affect the use effect of the leveling pad of the utility model.

[0047] (2) When installing the support pad, tear off the double-sided adhesive tape or adhesive tape 6 on the inner side of the support pad and stick the support pad to the edge of the manhole cover. It is appropriate to arrange 4 to 8 support pads around the perimeter depending on the situation.

[0048] (3) When installing the square pad, tear off the double-sided adhesive tape or adhesive backing 6 of the square pad and stick the square pad to the outer side of the middle section of the support pad.

[0049] (4) After lifting the manhole cover, you can first arrange the leveling pads on one half of the manhole cover, and then arrange the leveling pads on the other side depending on the situation.

[0050] (5) After adjusting the vertical height difference and horizontal gap between the manhole cover and the well seat by adding or removing bottom pads and square pads, the mortise and tenon joints can be fastened with dry glue, and the entire manhole cover can be placed into the well seat.

[0051] In summary, the utility model has the following advantages:

[0052] 1. Easy to install, no need to drill holes or take other measures to damage or change the original structure of the manhole cover.

[0053] 2. The height difference between the manhole cover and the manhole seat can be adjusted by increasing or decreasing the number or thickness of the bottom pads 4.

[0054] 3. The horizontal gap between the manhole cover and the manhole seat can be adjusted by increasing or decreasing the number or thickness of the square pads 5.

[0055] 4. High applicability, it can be used for manhole covers with different diameters, shapes, height differences and horizontal gaps.

[0056] 5. The structure is firm and stable, and the installation and maintenance are quick and low-cost.

[0057] Embodiment 2

[0058] Based on the first embodiment, Figure 6 As shown, if the leveling pad of the utility model is applied to a circular well, the top view projection of the supporting pad and the bottom pad 4 is fan-shaped, and multiple leveling pads are distributed in ring-shaped sections.

[0059] Through the above technical solution, the leveling pad has a slight curvature as a whole. With this structure, the leveling pad can be suitable for well seats of various diameters. When installing, tear off the double-sided adhesive or back adhesive 6, stick the support pad to the edge of the well cover, and fix the installation more conveniently.

[0060] Embodiment 3

[0061] Based on the first embodiment, Figure 7 As shown, if the leveling pad of the utility model is applied to a rectangular well, the top view projection of the support pad and the bottom pad 4 is rectangular. A plurality of leveling pads are centrally arranged at the corners of the rectangular well. Through the above technical solution, the leveling pad of the utility model is also applicable to rectangular wells of various sizes.

[0062] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A height-adjustable manhole cover leveling pad, characterized in that: The invention comprises a supporting pad, a bottom pad (4) and a square pad (5), wherein the supporting pad is matched with one or more bottom pads (4), the bottom pad (4) is detachably connected to the bottom of the supporting pad, and the supporting pad is fitted with one or more square pads (5) on the outer side.

2. The height-adjustable manhole cover leveling pad according to claim 1, characterized in that: The support pad comprises an upper section (1), a middle section (2) and a lower section (3); the upper section (1), the middle section (2) and the lower section (3) are an integral whole; the upper section (1) and the lower section (3) are parallel; the outward slope of the middle section (2) and the lower section (3) is 1 / 10; the inner sides of the upper section (1), the middle section (2) and the lower section (3) of the support pad are adhered to the edge of the manhole cover by double-sided adhesive or adhesive backing (6).

3. The height-adjustable manhole cover leveling pad according to claim 1, characterized in that: The square pad (5) is adhered to the outer side of the middle section (2) of the support pad by means of double-sided adhesive or back adhesive (6).

4. The height-adjustable manhole cover leveling pad according to claim 1, characterized in that: The bottom side of the lower section (3) of the support pad is provided with a plurality of first recessed mortises (7), the top side of the base pad (4) is provided with a plurality of convex tenons (8) corresponding to the first recessed mortises (7), and the base pad (4) is mortised and tenoned to the bottom side of the lower section (3) of the support pad.

5. The height-adjustable manhole cover leveling pad according to claim 4, characterized in that: A second concave mortise (9) corresponding to the convex tenon (8) is arranged on the bottom side of the base pad (4); a plurality of base pads (4) are vertically stacked, and two adjacent base pads (4) are connected by mortise and tenon.

6. The height-adjustable manhole cover leveling pad according to claim 1, characterized in that: The top view projection of the support pad and the base pad (4) is rectangular.

7. The height-adjustable manhole cover leveling pad according to claim 1, characterized in that: The top view projection of the supporting pad and the bottom pad (4) is in the shape of a fan ring.

8. The height-adjustable manhole cover leveling pad according to claim 1, characterized in that: The material of the supporting pad, the bottom pad (4) and the square pad (5) includes EPDM rubber.

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