A support device for road collapse

Abstract

The present invention provides a support device for road collapse, which belongs to the field of support machinery and is used to support the pit wall of a collapsed pit to facilitate repair work. When a road collapses, it is often accompanied by damage to pipelines. Rashly entering the collapsed pit poses a safety hazard, and conventional repair methods will result in long-term interruption of the road surface. The device includes a top plate, a center support platform, a peripheral side support platform, a first support member, and a support plate group. The peripheral side support platforms are distributed around the center support platform. The peripheral side support platforms include side support plates, a top support plate, and a second support member. The side support plates are vertically arranged, and the top support plates are rotatably connected to the top of the side support plates. The second support member is connected between the side support plates and the top support plate. The bottom surface of the center support platform is suspended and connected to the peripheral side support platforms through the first support member. When in use, the top plate covers the collapsed pit, and the load of the top plate acts on the top support plate and the center support platform, and then acts on the pit wall. The device can not only ensure the safety of workers, but also facilitate the passage of vehicles and pedestrians, reducing traffic blockage.

Description

Technical Field

[0001] The invention belongs to the field of supporting machinery, and in particular relates to a supporting device for road collapse. Background Art

[0002] Urban pavement collapse refers to ground subsidence or subsidence on and near urban roads caused by disturbances caused by human engineering activities or karstification. With the development of urban underground spaces, the increasing intensity of human engineering activities, the frequent occurrence of extreme rainfall events, and the end of life or damage of previously laid underground pipelines, urban pavement collapse is becoming increasingly frequent.

[0003] Urban road collapses are primarily single-point, with clusters of collapses being rare. Collapse pits are primarily circular, elliptical, or irregular in shape, with altar-shaped and funnel-shaped cross-sections. Pits typically range in width from 0.6 to 15 meters. Urban road collapses can be divided into four categories based on their triggering factors: pipeline-type collapses, underground construction-type collapses, karst-type collapses, and air-raid shelter-type collapses. Pipeline-type collapses and underground construction-type collapses are the most common.

[0004] In the related art, when carrying out emergency repairs for collapses, it is necessary to close the road section, clean the collapsed area, uncover the broken asphalt pavement, and completely expose the cavity so that the collapsed part of the cavity can be treated to prevent secondary falls. Since water pipelines, heating pipelines, rainwater and sewage pipelines, etc. are laid under the road surface, road collapse is often accompanied by pipe cracking and damage, and the water in the pipeline is collected in the collapse pit. If it is not repaired quickly, it will not only affect the daily life of the surrounding residents, but also may cause the collapse area to further expand due to soaking. However, the collapse pit has not been reinforced yet, and it is dangerous to rashly enter the pit to repair the pipeline. Moreover, the traffic and pedestrian flow on urban roads are dense, and the collapse repair cycle is long, which will seriously affect the travel of surrounding residents and bring inconvenience to their daily work and life. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a support device for road collapse, which is used to solve the problem in the prior art that road collapse is often accompanied by pipeline damage, and pipeline repair has a high priority, but rashly entering the repair pipeline before reinforcing the collapsed area poses a great safety problem.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides a road collapse support device for supporting the pit wall of a collapsed pit, comprising:

[0007] Top plate, central platform, peripheral platform, first support member and support plate group;

[0008] At least two of the circumferential side bearing platforms are evenly distributed around the circumference of the central bearing platform, and the circumferential side bearing platforms include side support plates, top support plates, and a second support member. The side support plates are vertically arranged, one end of the top support plate is rotatably connected to the top of the side support plate, and the second support member is connected between the side support plates and the top support plate.

[0009] The top surface of the central support platform is flush with the top surface of the top support plate, and the bottom surface of the central support platform is suspended in the air. The central support platform is connected to each of the peripheral side support platforms via a first support member, and both ends are rotatably connected;

[0010] The top plate is fixedly arranged on the top of the central support platform and the peripheral side support platforms, and the top plate covers the collapse pit;

[0011] The support plate group is installed on the outer side of the peripheral support platform and supports the pit wall of the collapse pit.

[0012] Optionally, the central support includes a connecting ring, a lower connecting seat, an upper connecting seat and a central seat;

[0013] The connecting ring is annular and has a notch. The lower connecting seat and the upper connecting seat are also annular. The upper end of the upper connecting seat is provided with a first annular step. The lower connecting seat and the first annular step are both provided with clamping steps and match each other. The clamping steps are provided with clamping holes.

[0014] The outer side of the tail end of the first support member is a first arcuate surface, and the connection between the upper connecting seat body and the first annular step is provided with a second arcuate surface. The tail end of the first support member is mounted on the connecting ring and can rotate and slide along the axis of the connecting ring. After the connecting ring is installed in the clamping hole, the first arcuate surface contacts the second arcuate surface.

[0015] A second annular step is provided at the upper end of the center seat, and the top surface of the first annular step contacts and limits the bottom surface of the second annular step.

[0016] Optionally, a vibration-damping structure is provided at the bottom of the top plate.

[0017] Optionally, the vibration reduction structure includes a vibration reduction box, a transverse frame, a longitudinal frame and filler;

[0018] The upper portion of the vibration damping box is open, and the bottom is fixedly connected to the central support and the peripheral support;

[0019] A plurality of transverse frames are fixed at intervals in the vibration damping box, and the thickness of the transverse frames is smaller than the depth of the vibration damping box;

[0020] A plurality of longitudinal frames are fixed at intervals on the bottom of the top plate, the direction of the longitudinal frames is perpendicular to the direction of the transverse frames, the outer edges of the two outermost longitudinal frames are aligned with the inner side surfaces of the side walls of the vibration damping box, and the top plate and the vibration damping box are limited by the longitudinal frames;

[0021] The vibration-damping box is filled with a filler capable of reducing vibration and absorbing energy. In an initial state, the bottom surface of the top plate is higher than the top surface of the vibration-damping box.

[0022] Optionally, the filler is a mixture of rubber particles and sand particles.

[0023] Optionally, an air bag is provided between the support plate assembly and the pit wall of the collapse pit.

[0024] Optionally, the support plate assembly includes a main plate component and a connecting plate component;

[0025] The inner side of the main plate is connected to the side support plate, and the outer side of the main plate supports the pit wall of the collapsed pit;

[0026] The connecting plate is connected between the two main plate components.

[0027] Optionally, holes are provided on the connecting plate.

[0028] Optionally, rubber pads are provided at both ends of the top plate.

[0029] Optionally, the first support member and the second support member are hydraulic cylinders and / or pneumatic cylinders.

[0030] As described above, the road collapse support device of the present invention has at least the following beneficial effects:

[0031] It can be used to repair collapsed pits on the road surface where pipelines are laid, quickly restore traffic on the collapsed road surface, improve the efficiency of emergency repairs of pipelines in collapsed areas, and increase the safety of pipeline repair operations under the road surface. Specifically, the device includes a top plate, a central support, a circumferential support, a first support member, and a support plate group. The circumferential support is distributed around the central support, and the circumferential support includes side support plates, a top support plate, and a second support member. The side support plates are vertically arranged, and the top support plates are rotatably connected to the tops of the side support plates. The second support member is connected between the side support plates and the top support plates. The top surfaces of the central support and the top support plate are flush, and the bottom surface of the central support is suspended in the air. The central support is connected to each circumferential support via a first support member. When in use, the top plate is fixed on the top of the central pedestal and the peripheral side pedestals, and covers the collapse pit. The load of the top plate acts on the top support plate and the central pedestal, and then acts on the side support plates through two support members. The support plate group is installed on the outside of the side support plates and supports the pit wall of the collapse pit. The bottom surface of the central pedestal is suspended in the air and does not need to be supported by the ground. Instead, the pit wall is supported laterally by the load on the top of the device. It is suitable for situations where there are complex pipelines in the pit that are inconvenient to support the bottom, and it can also improve the stability of the support to ensure the safety of operators. The top plate can also facilitate the passage of vehicles and pedestrians without affecting road traffic. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Shown is a three-dimensional schematic diagram of the present invention.

[0033] Figure 2 Shown is a schematic diagram of the present invention without a top plate and installed in a collapse pit.

[0034] Figure 3 Shown is a schematic diagram of the connection relationship between the central bearing platform and the peripheral bearing platforms of the present invention.

[0035] Figure 4 Shown is a schematic diagram of the present invention installed on the road surface after a collapsed pit.

[0036] Figure 5 The diagram shows a perspective view of the present invention without a top plate.

[0037] Figure 6 Shown is a schematic diagram of the vibration reduction structure of the present invention.

[0038] Figure 7 Shown is a schematic diagram of the center support of the present invention.

[0039] Figure 8 Shown is a schematic cross-sectional view of the center support of the present invention.

[0040] Among them: top plate 1, center support platform 2, connecting ring 20, lower connecting seat 21, upper connecting seat 22, first annular step 221, second curved surface 222, clamping step 23, center seat 24, second annular step 241, peripheral side support platform 3, side support plate 30, top support plate 31, second support member 32, first support member 4, first curved surface 40, support plate group 5, main board member 50, connecting plate member 51, hole 511, vibration reduction structure 6, vibration reduction box 60, transverse frame 61, longitudinal frame 62, collapse pit 9. DETAILED DESCRIPTION

[0041] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0042] See also Figures 1 to 8 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0043] The following embodiments are for illustration only and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0044] For this example, please refer to Figure 1-5The present invention provides an embodiment of a support device for road collapse, which is used to support the pit wall of a collapsed pit 9, and includes a top plate 1, a central support platform 2, a circumferential support platform 3, a first support member 4, and a support plate group 5. At least two circumferential support platforms 3 are evenly distributed around the central support platform 2. The circumferential support platform 3 includes a side support plate 30, a top support plate 31, and a second support member 32. The side support plate 30 is vertically arranged, and one end of the top support plate 31 is rotatably connected to the top of the side support plate 30. The second support member 32 is connected between the side support plate 30 and the top support plate 31. During the initial assembly, the top surface of the central support platform 2 can be slightly higher than the top surface of the top support plate 31. When the top plate 1 is installed, under the action of pressure, the top surface of the central support platform 2 is flush with the top surface of the top support plate 31. This ensures that the top load acts more on the central support platform 2 and is converted into lateral support force. The bottom surface of the central platform 2 is suspended in the air. It is connected to each of the peripheral platforms 3 via a first support member 4, with both ends pivotally connected. A top plate 1 is fixed atop the central platform 2 and the peripheral platforms 3, covering the collapsed pit 9. A support plate assembly 5 is mounted on the outside of the peripheral platforms 3 and supports the walls of the collapsed pit 9.

[0045] In the above embodiment, the central support 2 is suspended on the top of the center of multiple side supports 3, and multiple first support members 4 are correspondingly connected between the side supports 3 and the central support 2 to form a mutual force. In order to ensure the stability of the central support 2, there must be at least two side supports 3. When there are two, they need to be set at an angle of 180° to each other. When the number of side supports 3 is greater, the side supports 3 can be set at an equal angle difference between each other, so that the stability of the central support 2 is also increased accordingly. The principle of the above embodiment is that when a collapsed pit 9 appears on the road surface, the pit, the pit wall, and the pit mouth edge are first simply processed to expose the underground facilities to be repaired, such as cables, pipes, etc. in the pit, and the broken and unstable parts of the pit edge are destroyed and cleaned. Then the main part of the device, including the support plate group 5, the central support 2, the side supports 3 and the first support member 4, are placed in the pit and assembled. During assembly, the outer edge of the support plate group 5 is allowed to contact the pit wall. Please refer to Figure 2state, if the pit wall of the collapsed pit 9 is relatively regular, the support plate group 5 can directly contact the pit wall to form support; if the pit wall of the collapsed pit 9 is irregular, it can be cleaned first, or fillers such as air bags or stones can be used between the support plate group 5 and the pit wall of the collapsed pit 9, so as to transfer the supporting force from the support plate group 5 to the pit wall to form support. After the main part of the device is installed, the collapsed pit 9 is covered with the top plate 1, and the top plate 1 can be fixed together with the central support platform 2 and the peripheral support platforms 3. The four sides of the top plate 1 are in contact with the road surface and supported by the road surface. The internal area of ​​the top plate 1 is supported by the central support platform 2 and the peripheral support platforms 3. Vehicles and pedestrians can pass on the top plate 1. The weight of the top plate 1 and the load acting on the top plate 1 will be transferred laterally to the support plate group 5. The support plate group 5 supports the pit wall to prevent the pit wall from further collapse. During specific implementation, in order to facilitate the operation of the workers, the top plate 1 can also only cover part of the collapsed pit 9, such as the part of the pit mouth close to the sidewalk, and maintain the pit mouth, so as to facilitate the entry and exit of the workers, while ensuring the needs of the collapse repair work, reducing the impact on traffic.

[0046] The advantages of this embodiment are: First, it can quickly restore traffic. In existing technologies, once a road collapse occurs, the entire road is often closed for construction, which can last for months. However, in this embodiment, once the device is deployed, the roof 1 quickly restores traffic, allowing workers to repair the cables and pipes below. Overall, traffic is only interrupted briefly during the device deployment and removal to restore the road surface. Second, it improves the efficiency of collapse repairs and makes repairs safer. In existing technologies, it is generally necessary to repair the collapsed pipelines and cables before repairing the road surface. Before entering the pit to repair the pipelines and cables, the pit must be treated to identify and remove unstable areas at the edge of the collapsed pit, and then perform preliminary reinforcement. This entire process is time-consuming. However, once the device of this embodiment is installed in the collapsed pit, it can reinforce the pit walls and use the weight of the top, such as passing vehicles and the roof 1, as lateral support to prevent further collapse of the pit walls. This improves repair efficiency while ensuring safety. Furthermore, the suspended configuration of the central support 2 significantly enhances the adaptability of the device. In related art, urban road collapses can be categorized into four types based on inducing factors: pipeline collapse, underground construction collapse, karst collapse, and air-raid shelter collapse. Of these, pipeline collapse and underground construction collapse are the most common. According to statistics, the vast majority of road collapses are caused by defects in drainage or water supply pipes, accounting for approximately 70%. This is caused by pipeline damage and leakage, which leads to erosion of the backfill soil beneath the road, forming cavities and settling along the pipeline backfill, resulting in road collapse. In other words, the vast majority of collapses occur beneath pipelines, and the collapse area is generally centered around the location of the pipeline defect. The bottom of the collapsed area suffers from soil erosion and unstable soil, making conventional support methods difficult to implement. First, the bottom of the collapse pit is a pipeline, making it difficult to set support points, and the supporting force acting on the pipeline is obviously unreasonable. Second, even if support points are available, the soil beneath the surface is eroded and has poor anti-settling properties, making it unsuitable for use as a support surface. In this embodiment, the central support 2 is suspended so that the bottom can be used for the pipeline to pass normally, and the operator can carry out repair work on the pipeline, thereby improving the applicability of the device; secondly, the first support member 4 converts the top load into a lateral load to achieve support for the side wall of the collapse pit. Compared with support from the lower surface, it has better stability and is more convenient to implement. When the collapse pit is deep, it can also support the hole of the collapse pit.

[0047] For this example, please refer to Figure 7 and Figure 8The center support 2 includes a connecting ring 20, a lower connecting seat 21, an upper connecting seat 22, and a center seat 24. The connecting ring 20 is annular and has a notch. The lower connecting seat 21 and the upper connecting seat 22 are also annular. The upper end of the upper connecting seat 22 is provided with a first annular step 221. The lower connecting seat 21 and the first annular step 221 are both provided with a clamping step 23 and match each other. The clamping step 23 is provided with a clamping hole. The outer side of the tail end of the first support member 4 is a first curved surface 40. The connection between the upper connecting seat 22 body and the first annular step 221 is provided with a second curved surface 222. The tail end of the first support member 4 is mounted on the connecting ring 20 and can rotate and slide along the axis of the connecting ring 20. After the connecting ring 20 is installed in the clamping hole, the first curved surface 40 contacts the second curved surface 222. A second annular step 241 is provided at the upper end of the center seat 24 . After the body of the center seat 24 is inserted into the connecting seat, the top surface of the first annular step 221 contacts and limits the bottom surface of the second annular step 241 .

[0048] In the above embodiment, the lower connecting seat 21 and the upper connecting seat 22 are two separate components. The connecting ring 20 is provided with a notch. The tail end of the first support member 4 can be inserted into the connecting ring 20 through the notch and can slide along the axis of the connecting ring 20 to adjust the angular position. The lower connecting seat 21 and the upper connecting seat 22 then clamp the connecting ring 20, thereby connecting them together as a single unit. Multiple first support members 4 support the central support 2 from different directions on all sides, allowing it to remain stable and suspended. When the central support 2 is subjected to a downward pressure load, it can transmit the load to the surrounding area, forming a supporting force for the sidewalls of the collapse pit. The center seat 24 can be pre-installed on the bottom of the top plate 1. After the support device body is installed in the pit, the top plate 1 is placed from top to bottom. The center seat 24 and the inner hole of the annular connecting seat can be used to achieve a good installation and positioning. Subsequent disassembly is also more convenient, thereby simplifying the implementation process. In specific implementation, the center seat 24 and the annular connecting seat can use a cylindrical or prismatic mating structure. When a prismatic mating structure is used, once the center seat 24 is inserted into the annular connecting seat, the center seat 24's rotational and sliding freedoms are completely restricted under the weight of the top plate 1 and the vehicles passing above it. The top plate 1, which is fixedly connected to the center seat 24, also loses these degrees of freedom accordingly. When a vehicle passes over it, creating a dynamic load, the top plate 1 does not move, resulting in greater overall stability. The first curved surface 40 contacts the second curved surface 222. When a load acts on the upper connecting seat 22, the mutual force can be directly transmitted from the contact surface. The gravity load of the top plate 1 and the vehicles above it is directly transmitted from the second curved surface 222 to the first support member 4, without having to be entirely transmitted through the connecting ring 20. This reduces the strength requirements for the connecting ring 20, prevents deformation of the connecting ring 20, and improves the circular precision of the connecting ring 20, facilitating the sliding of the first support member 4 and preventing it from getting stuck. This ensures ease of operation during installation, commissioning, and disassembly, while also improving the reliability and safety of the entire support system and the operating load range of the entire device.

[0049] For this example, please refer to Figure 1 and Figure 6A vibration damping structure 6 is provided at the bottom of the top plate 1. The vibration damping structure 6 includes a vibration damping box 60, a transverse frame 61, a longitudinal frame 62, and filler. The top of the vibration damping box 60 is open, and the bottom is fixedly connected to the central support 2 and the peripheral support 3. Multiple transverse frames 61 are fixed in the vibration damping box 60 at intervals, and the thickness of the transverse frames 61 is less than the depth of the vibration damping box 60. Multiple longitudinal frames 62 are fixed at intervals at the bottom of the top plate 1. The direction of the longitudinal frames 62 is perpendicular to the direction of the transverse frames 61. Among the longitudinal frames 62, the outer edges of the two outermost longitudinal frames 62 are aligned with the inner side surfaces of the side walls of the vibration damping box 60. The top plate 1 and the vibration damping box 60 are limited by the longitudinal frames 62 and can slide a small amount along the wall surface of the vibration damping box 60. The vibration damping box 60 is filled with filler that can reduce vibration and absorb energy. In the initial state, the bottom surface of the top plate 1 is higher than the top surface of the vibration damping box 60. When vehicles pass over roof panel 1, roof panel 1 compresses the filler material, causing it to deform and absorb energy, reducing the load transmitted from roof panel 1 to the underlying support structure. In particular, when vehicles enter and exit roof panel 1, they may experience significant transient impact loads. The provision of vibration-damping structure 6 effectively filters out these transient impact loads, retaining only the relatively stable gravity load. This, on the one hand, ensures the stability of the support structure and the safety of workers at the bottom. On the other hand, the vibration-damping structure 6 absorbs shock, reducing vibration and noise, thereby minimizing the impact on surrounding pedestrians and workers. Elastic pads, such as rubber pads, can also be provided at both ends of roof panel 1 to reduce the vibration and noise generated between roof panel 1 and the bottom surface when vehicles enter and exit. The combined action of the elastic pads and vibration-damping structure 6 ensures virtually no hard contact between roof panel 1 and the road surface or the support structure itself, resulting in relatively low noise levels and minimal impact on surrounding pedestrians and residents, particularly workers within the collapsed pit. Specifically, in this embodiment, the vibration-damping structure 6 utilizes a crisscross framework to enhance the smoothness of force transmission. The framework is typically constructed of wood, making it easy to install, disassemble, and transport. The framework ensures sufficient local strength. Furthermore, filler material is placed within the vibration-damping housing 60. The filler's elasticity and fluidity effectively absorb impact loads, trapping them within the vibration-damping structure 6 and absorbing them through deformation and fluidity, preventing them from being transmitted to the lower structure. Alternatively, elastic members such as springs could be used as the vibration-damping structure, but this approach is more complex, making the spring installation and securing difficult. Furthermore, it is difficult to achieve surface contact, requiring only point contact. In this embodiment, the filler material can be a mixture of rubber particles and sand, which combines fluidity and elasticity. Furthermore, it ensures a continuous energy-absorbing structure between the top plate 1 and the vibration-damping housing 60. This allows for stable gravity loads to be effectively transmitted to the lower portion as a supporting force, while providing a strong filtering capability for impact loads, preventing them from being transmitted to the lower portion. This results in a highly reliable and secure overall device.

[0050] For this example, please refer to Figure 1 and Figure 2 The support plate group 5 includes a main plate 50 and a connecting plate 51. The inner side of the main plate 50 is connected to the side support plate 30, and the outer side of the main plate 50 supports the pit wall of the collapsed pit 9. The connecting plate 51 is connected between the two main plate members 50. Figure 1 and Figure 2 In the embodiment, both the main plate 50 and the connecting plate 51 utilize curved panels. However, in actual scenarios, the shape of the collapsed area varies. According to statistics, the collapsed pit is mainly circular, elliptical, and irregular in shape, while the cross-section is mainly shaped like an altar or funnel. Therefore, in actual implementation, the support plate assembly 5 needs to be configured according to the shape of the collapsed pit. In most cases, for the convenience of storage and transportation, the unit plates of the support plate assembly 5 are all flat plates. In this embodiment, the support plate assembly 5 includes two types of main plate 50 and connecting plate 51. The main plate 50 is connected to the side support plate 30 and has strong support force, while the connecting plate 51 is connected between the two main plate 50. The connecting plate 51 can be made of a material with good plasticity or a shape changeable material. In actual implementation, the main plate 50 mainly plays a supporting role and is subject to greater forces, while the connecting plate 51 mainly acts as a retaining wall and is subject to less forces. In some scenarios, the connecting plate 51 may not even be provided, and the main plate 50 alone provides support, depending on the actual conditions of the collapsed pit wall. The number, spacing, and angle of the main plate members 50 can be adjusted based on the conditions of the collapse pit, taking into account the routing of cable pipes, thermal pipes, and water pipes within the pit, allowing these pipes to pass through the gaps between the main plate members 50. If connecting plates 51 are truly necessary, holes 511 can be provided in the connecting plates 51 for the pipes to pass through. Alternatively, a support plate assembly 5 with a height less than the depth of the collapse pit can be used, with the bottom of the support plate assembly 5 slightly higher than the top of the pipes within the collapse pit, thereby ensuring that the support plate assembly 5 will not become inoperable due to the pipes.

[0051] In this embodiment, the first support member 4 and the second support member 32 are hydraulic cylinders and / or pneumatic cylinders, and both ends are rotatably connected. Figure 3 and Figure 5 By setting the two ends of the support member to be rotatably connected, and the support member is a pneumatic or hydraulic cylinder, the adaptability of the device can be increased. Specifically, before the device is installed and fixed, the expansion degree of the main board member 50 can be controlled by adjusting the expansion amount of the first support member 4, thereby achieving adaptability to collapse pits of various cross-sections without replacing parts; after the device is installed and fixed, the supporting force can also be controlled by adjusting the expansion amount of the first support member 4, thereby adapting to various support scenarios. In addition, each first support member 4 can be controlled independently, which means that the expansion degree of each main board member 50 can also be different. Between the main board members 50, the connecting plate 51 can be set or not set as needed according to the scene, thereby achieving adaptability to collapse pits of various shapes.

[0052] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0053] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A road collapse support device for supporting the pit wall of a collapsed pit (9), characterized in that: It comprises a top plate (1), a central support platform (2), a peripheral support platform (3), a first support member (4) and a support plate group (5); At least two of the circumferential side supports (3) are evenly distributed around the central support (2), and the circumferential side supports (3) include side support plates (30), top support plates (31) and second support members (32), wherein the side support plates (30) are vertically arranged, one end of the top support plate (31) is rotatably connected to the top of the side support plate (30), and the second support member (32) is connected between the side support plates (30) and the top support plate (31); The top surface of the central support platform (2) is flush with the top surface of the top support plate (31), the bottom surface of the central support platform (2) is suspended in the air, and the central support platform (2) is connected to each of the peripheral support platforms (3) via a first support member (4), and both ends are rotatably connected; The top plate (1) is fixedly arranged on the top of the central support platform (2) and the peripheral support platform (3), and the top plate (1) covers the collapse pit (9); The support plate group (5) is installed on the outside of the peripheral support platform (3) and plays a supporting role on the pit wall of the collapse pit (9); The central support platform (2) comprises a connecting ring (20), a lower connecting seat (21), an upper connecting seat (22) and a central seat (24); The connecting ring (20) is annular and has a notch. The lower connecting seat (21) and the upper connecting seat (22) are also annular. The upper end of the upper connecting seat (22) is provided with a first annular step (221). The lower connecting seat (21) and the first annular step (221) are both provided with a clamping step (23) and match each other. The clamping step (23) is provided with a clamping hole. The outer side of the tail end of the first support member (4) is a first arcuate surface (40), and a second arcuate surface (222) is provided at the connection between the upper connecting seat (22) body and the first annular step (221). The tail end of the first support member (4) is mounted on the connecting ring (20) and can rotate and slide along the axis of the connecting ring (20). After the connecting ring (20) is installed in the clamping hole, the first arcuate surface (40) contacts the second arcuate surface (222); A second annular step (241) is provided at the upper end of the center seat (24), and the top surface of the first annular step (221) and the bottom surface of the second annular step (241) are in contact and limited position.

2. A road collapse support device according to claim 1, characterized in that: A vibration reduction structure (6) is provided at the bottom of the top plate (1).

3. The road collapse support device according to claim 2, characterized in that: The vibration damping structure (6) comprises a vibration damping box (60), a transverse frame (61), a longitudinal frame (62) and a filler; The upper portion of the vibration damping box (60) is open, and the bottom portion is fixedly connected to the central support platform (2) and the peripheral support platforms (3); A plurality of transverse frames (61) are fixed at intervals in the vibration damping box (60), and the thickness of the transverse frames (61) is less than the depth of the vibration damping box (60); A plurality of longitudinal frames (62) are fixed at intervals on the bottom of the top plate (1), the direction of the longitudinal frames (62) is perpendicular to the direction of the transverse frames (61), the outer edges of the two outermost longitudinal frames (62) of the longitudinal frames (62) are aligned with the inner side surfaces of the side walls of the vibration damping box (60), and the top plate (1) and the vibration damping box (60) are limited by the longitudinal frames (62); The vibration-damping box (60) is filled with a filler capable of reducing vibration and absorbing energy. In an initial state, the bottom surface of the top plate (1) is higher than the top surface of the vibration-damping box (60).

4. A road collapse support device as claimed in claim 3, characterized in that: The filler is a mixture of rubber particles and sand particles.

5. The supporting device for road collapse according to claim 1, characterized in that: An air bag is provided between the support plate group (5) and the pit wall of the collapse pit (9).

6. The road collapse support device according to claim 1, characterized in that: The support plate assembly (5) comprises a main plate component (50) and a connecting plate component (51); The main plate (50) is connected to the side support plate (30) on its inner side, and supports the pit wall of the collapse pit (9) on its outer side. The connecting plate component (51) is connected between the two main plate components (50).

7. A road collapse support device as claimed in claim 6, characterized in that: The connecting plate (51) is provided with a hole (511).

8. The supporting device for road collapse according to claim 1, characterized in that: Both ends of the top plate (1) are provided with rubber pads.

9. The supporting device for road collapse according to claim 1, characterized in that: The first support member (4) and the second support member (32) are hydraulic cylinders and / or pneumatic cylinders.

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