Well lid capable of being lifted and leveled

Abstract

The utility model relates to a well lid capable of being lifted and leveled, which comprises a back shore component, and the back shore component is sleeved on the outer side of a well lid base and supported below the outer edge of a flange of the well lid base. The jacking component comprises lifting adjusting assemblies and a positioning ring, the multiple lifting adjusting assemblies are fixedly arranged on the positioning ring in a circumferential array mode, the positioning ring is arranged on the outer side of the well lid base in a sleeving mode, and the lifting adjusting assemblies are supported below the outer edge of a flange of the well lid base and used for adjusting the height of the well lid base. The lifting adjusting assembly comprises a fixing seat, an adjusting sleeve and a lifting screw rod which are coaxially arranged from outside to inside, the adjusting sleeve is fixedly connected with the fixing seat through a fixing pin, a plurality of fixing holes penetrating through the center hole are formed in the periphery of the fixing seat, and the fixing pin enables the adjusting sleeve and the fixing seat to be fixedly connected in a positioning mode through one fixing hole; the other fixing holes are used as grouting holes in construction, so that the firmness of the fixing seat and the surrounding road surface is enhanced; the manhole cover is reasonable in structure, convenient to use and adjust, capable of integrally adjusting the height of the manhole cover, high in road surface combination degree, resistant to impact and not prone to displacement.

Description

Technical Field

[0001] This utility model relates to the field of municipal road construction technology, and in particular to a liftable and levelable manhole cover. Background Technology

[0002] With economic development and the improvement of people's living standards, there are more and more manholes on the road for various paving facilities. The manhole cover area is often lower than the road surface, forming a pit. With the increasing number of motor vehicles, vehicles will experience bumps when driving over such roads with manhole covers, which seriously affects people's driving experience and may even cause vehicle damage. The main reason is that the position and height of the manhole cover are not scientifically adjusted during installation, resulting in a height difference. When vehicles drive over this point, they impact the manhole cover, thereby damaging the surrounding road surface.

[0003] Chinese patent CN115522571A discloses an adjustable manhole cover assembly, including a manhole base and a manhole cover. The manhole base includes a first manhole base and a second manhole base. A sunken annular support platform is provided at the center of the first manhole base, and the second manhole base is installed on the annular support platform. The manhole cover is overlapped and installed on the second manhole base. A lifting and adjusting locking mechanism is provided between the second manhole base and the annular support platform. The above patent adjusts the lifting and adjusting locking mechanism to make the manhole cover level with the road surface, but the problem of leveling the first manhole base with the road surface still exists. When the road surface has a slope, adjusting the lifting and adjusting locking mechanism alone to make the manhole cover level with the road surface will cause jamming and height difference between the manhole cover and the first manhole base. Therefore, this application proposes an adjustable manhole cover with an overall height that can be adjusted. Utility Model Content

[0004] The purpose of this utility model is to provide a liftable and levelable manhole cover 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 liftable and leveling manhole cover includes a top support component, which is sleeved on the outside of the manhole cover base and supported below the outer edge of its flange. The top support component includes a lifting adjustment assembly and a positioning ring. A plurality of the lifting adjustment assemblies are fixedly arranged in a circumferential array on the positioning ring, which is sleeved on the outside of the manhole cover base. The lifting adjustment assembly is supported below the outer edge of the manhole cover base flange. The lifting adjustment assembly includes a fixed seat, an adjusting sleeve, and a lifting screw arranged coaxially from the outside to the inside. The adjusting sleeve is fixedly connected to the fixed seat by a fixing pin, and the lifting screw can rise and fall along the axis within the adjusting sleeve.

[0007] The aforementioned adjustable manhole cover has a fixed base with a central hole extending to both ends, and multiple fixed holes extending to the central hole on its outer periphery. The adjusting sleeve is disposed within the central hole, and the adjusting sleeve and the fixed base are positioned and fixedly connected by a fixing pin through one of the fixed holes.

[0008] The aforementioned adjustable manhole cover has a fixed base that is cylindrical or prismatic in shape.

[0009] The aforementioned adjustable manhole cover has multiple fixing holes arranged in a spaced array along the axis on the fixing base.

[0010] The aforementioned adjustable manhole cover has a threaded blind hole at the center of the adjusting sleeve, and a connecting hole on its outer circumference that matches the fixing pin. The lifting screw is located inside the threaded blind hole, and the fixing pin passes through the connecting hole and the corresponding fixing hole.

[0011] The aforementioned adjustable manhole cover has a double-headed stud with one end mounted on the adjusting sleeve and the other end fixed with a support pad by a thread.

[0012] The aforementioned adjustable manhole cover has a support block comprising a connecting block and a self-lubricating pad. The connecting block is fixed on the lifting screw, and the self-lubricating pad is located at the center of the connecting block and can rotate around an axis.

[0013] The lifting screw of the aforementioned adjustable manhole cover is larger than M8.

[0014] The aforementioned adjustable manhole cover has at least four lifting and leveling components.

[0015] The aforementioned adjustable manhole cover has a positioning ring made of annular steel plate with a thickness greater than 5mm and a ring width greater than 50mm.

[0016] The beneficial effects of adopting the above technical solution are:

[0017] The adjustable manhole cover provided by this utility model, by setting a top support component sleeved on the outside of the manhole cover base, allows for overall adjustment of the manhole cover base, enabling it to be level with the road surface. The top support component includes multiple lifting and adjusting components fixedly arranged in a circumferential array on a positioning ring. The positioning ring, sleeved on the outside of the manhole cover base, allows for quick positioning of the top support component. The multiple lifting and adjusting components are supported below the outer edge of the manhole cover base flange for adjusting its height, ensuring that its circumference can be raised and lowered to be level with the road surface. The lifting and adjusting components include a fixed base, an adjusting sleeve, and a lifting screw arranged coaxially from the outside to the inside. The adjusting sleeve is fixed... The pin is fixedly connected to the fixed seat. The fixed seat has multiple fixing holes extending to the center hole on its outer periphery. The fixing pin positions and fixes the adjusting sleeve and the fixed seat through one of the fixing holes. The remaining fixing holes serve as grouting holes during construction, which can strengthen the firmness between the fixed seat and the surrounding road surface and improve the overall impact resistance. The lifting and adjusting component is equipped with an adjusting sleeve for initial height adjustment, which can quickly raise it to approximately the height of the road surface. The lifting screw is used for pressure-bearing lifting and adjustment. This application has a reasonable structure, is easy to use and adjust, can adjust the height of the manhole cover as a whole, and has a high degree of integration with the road surface, making it impact-resistant and not easily displaced. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0020] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a three-dimensional structural diagram of the top support component of this utility model;

[0022] Figure 5 This is a three-dimensional view of the overall structure of this utility model.

[0023] In the diagram: 1. Top support component; 11. Lifting and adjusting assembly; 11-1. Fixed base; 11-1-1. Center hole; 11-1-2. Fixed hole; 11-2. Adjusting sleeve; 11-2-1. Threaded blind hole; 11-3. Lifting screw; 11-4. Fixed pin; 11-5. Support pad; 12. Positioning ring; 2. Manhole cover base. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0025] like Figures 1 to 5The illustrated adjustable manhole cover includes a top support component 1, which is fitted onto the outside of a manhole cover base 2 and supported below its flange outer edge. This component is used to level the manhole cover base 2 with the surrounding road surface to prevent potholes. The top support component 1 includes a lifting adjustment assembly 11 and a positioning ring 12. Multiple lifting adjustment assemblies 11 are arranged in a circumferential array and fixedly mounted on the positioning ring 12. The positioning ring 12 is fitted onto the outside of the manhole cover base 2. The lifting adjustment assemblies 11 are supported below the flange outer edge of the manhole cover base 2, allowing for vertical adjustment of the height of the manhole cover base 2. The lifting adjustment assembly 11 includes a fixed seat 11-1, an adjusting sleeve 11-2, and a lifting screw 11-3, coaxially arranged from the outside to the inside. The adjusting sleeve 11-2 is fixedly connected to the fixed seat 11-1 via a fixing pin 11-4. The lifting screw 11-3 can move up and down along its axis within the adjusting sleeve 11-2. In this embodiment, the positioning ring 12 is a ring-shaped steel plate with a thickness greater than 5mm and a ring width greater than 50mm. At least four lifting adjustment assemblies 11 are arranged around the circumference.

[0026] like Figures 2 to 4 As shown, the fixed base 11-1 has a central hole 11-1-1 extending to both end faces, and multiple fixing holes 11-1-2 extending to the central hole 11-1-1 are provided on its outer periphery. The adjusting sleeve 11-2 is disposed in the central hole 11-1-1. The multiple fixing holes 11-1-2 are arranged in a spaced array along the axis on the fixed base 11-1. The adjusting sleeve 11-2 and the fixed base 11-1 are positioned and fixedly connected by a fixing pin 11-4 through one of the fixing holes 11-1-2. The adjusting sleeve 11-2 can slide up and down. After reaching the appropriate height, rotate to select the appropriate fixing hole 11-1-2 for positioning. The fixing pin 11-4 can be set on any fixing hole 11-1-2. The remaining fixing holes 11-1-2 are used as grouting holes during construction. The filler enters the center hole and fixing holes of the fixing seat, solidifying the fixing seat 11-1 and the adjusting sleeve 11-2 together within the filler. After grouting, the fixing seat 11-1 is firmly connected to the surrounding filler, making it less prone to cracking. It is more pressure-resistant and impact-resistant during use, and has a longer service life. The fixing seat 11-1 can be cylindrical or prismatic, such as a square prism, hexagonal prism, or octagonal prism. Prismatic shapes are less prone to rotation during initial positioning during construction and are easy to observe for displacement or rotation.

[0027] The adjusting sleeve 11-2 has a threaded blind hole 11-2-1 at its center to prevent the filler material from damaging the threads during grouting. The outer circumference of the adjusting sleeve 11-2 has a connecting hole that matches the fixing pin 11-4. The connecting hole is not connected to the threaded blind hole 11-2-1. The lifting screw 11-3 is set inside the threaded blind hole 11-2-1. The fixing pin 11-4 is set through the connecting hole and the corresponding fixing hole 11-1-2. After the fixing pin 11-4 fixes the adjusting sleeve 11-2 and the fixing seat 11-1, the lifting screw 11-3 can be rotated to initially adjust the height of the manhole cover base 2. The lifting screw 11-3 is a double-ended stud, with one end threaded onto the adjusting sleeve 11-2 and the other end threadedly fixed to a support pad 11-5. The support pad 11-5 includes a connecting block and a self-lubricating gasket. The connecting block is fixed to the lifting screw 11-3, and the self-lubricating gasket is located at the center of the connecting block and can rotate around an axis. After the lifting screw 11-3 abuts against the flange of the manhole cover base 2, the self-lubricating gasket fits against the flange, and the double-ended stud and the support pad 11-5 rotate around the axis, raising or lowering the flange. In this embodiment, the lifting screw 11-3 is selected with a specification larger than M8.

[0028] Workflow: Place the top support component onto the outside of the manhole cover base cylinder, ensuring the lifting screw of the adjusting assembly rests against the flange of the manhole cover base. Place the manhole cover base and top support component together on the manhole opening. The fixed seat and the cylinder of the manhole cover base support the manhole opening. If the difference between the manhole cover and the surrounding road surface is large, pull the adjusting sleeve upwards to make the lifting screw rest against the flange of the manhole cover base. Then, fix the adjusting sleeve to the fixed seat with the fixing pin. If the difference between the manhole cover and the surrounding road surface is small, the height of the adjusting sleeve does not need to be adjusted. After completing the initial positioning of the top support component and the manhole cover base, measure the horizontal height difference between the manhole cover base and the surrounding road surface. Based on the measurement results, adjust the lifting screw of the adjusting assembly sequentially until the manhole cover is level with the road surface. Finally, use the pouring filler to cast the top support component and the outside of the manhole cover base into one piece.

[0029] This article uses specific embodiments to illustrate the principles and implementation methods of this utility model in detail. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. Those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A height-adjustable and leveling manhole cover, characterized in that: The system includes a top support component (1), which is sleeved on the outside of the manhole cover base (2) and supported below the outer edge of its flange. The top support component (1) includes a lifting adjustment assembly (11) and a positioning ring (12). Multiple lifting adjustment assemblies (11) are fixedly arranged in a circumferential array on the positioning ring (12). The positioning ring (12) is sleeved on the outside of the manhole cover base (2). The lifting adjustment assembly (11) is supported below the outer edge of the flange of the manhole cover base (2). The lifting adjustment assembly (11) includes a fixed seat (11-1), an adjustment sleeve (11-2), and a lifting screw (11-3) arranged coaxially from the outside to the inside. The adjustment sleeve (11-2) is fixedly connected to the fixed seat (11-1) by a fixing pin (11-4). The lifting screw (11-3) can rise and fall along the axis inside the adjustment sleeve (11-2).

2. The adjustable manhole cover according to claim 1, characterized in that: The fixing base (11-1) is provided with a central hole (11-1-1) extending through both end faces, and a plurality of fixing holes (11-1-2) extending through the central hole (11-1-1) are provided on the outer periphery. The adjusting sleeve (11-2) is disposed in the central hole (11-1-1). The adjusting sleeve (11-2) and the fixing base (11-1) are positioned and fixedly connected by the fixing pin (11-4) through one of the fixing holes (11-1-2).

3. The adjustable manhole cover according to claim 2, characterized in that: The fixed base (11-1) is cylindrical or prismatic in shape.

4. The adjustable manhole cover according to claim 2, characterized in that: Multiple fixing holes (11-1-2) are arranged in a spaced array along the axis on the fixing base (11-1).

5. The adjustable manhole cover according to claim 2, characterized in that: The adjusting sleeve (11-2) has a threaded blind hole (11-2-1) at its center and a connecting hole that matches the fixing pin (11-4) on its outer circumference. The lifting screw (11-3) is located in the threaded blind hole (11-2-1), and the fixing pin (11-4) passes through the connecting hole and the corresponding fixing hole (11-1-2).

6. The adjustable manhole cover according to claim 5, characterized in that: The lifting screw (11-3) is a double-ended stud, with one end set on the adjusting sleeve (11-2) and the other end fixed with a support pad (11-5) by a thread.

7. A height-adjustable and leveling manhole cover according to claim 6, characterized in that: The support pad (11-5) includes a connecting block and a self-lubricating pad. The connecting block is fixed on the lifting screw (11-3), and the self-lubricating pad is located at the center of the connecting block and can rotate around the axis.

8. A height-adjustable and leveling manhole cover according to claim 7, characterized in that: The lifting screw (11-3) is selected with a specification greater than M8.

9. A height-adjustable and leveling manhole cover according to claim 1, characterized in that: There are no fewer than four lifting adjustment components (11).

10. A height-adjustable and leveling manhole cover according to claim 9, characterized in that: The positioning ring (12) is an annular steel plate with a thickness greater than 5 mm and a ring width greater than 50 mm.

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