Tunnel anti-deformation emergency support device

Abstract

The application discloses a tunnel anti-deformation emergency supporting device and belongs to the technical field of tunnel construction. The tunnel anti-deformation emergency supporting device comprises a support assembly. The support assembly comprises symmetrically arranged side plates. One end of the side plate away from the ground is connected through a connecting box. A supporting arc plate is arranged above the connecting box. A first guide rod penetrating through the connecting box and connected with the supporting arc plate is arranged in the middle of the connecting box. Second guide rods connected with the supporting arc plate are symmetrically and slidingly arranged at the two ends of the connecting box. First springs are connected between the second guide rods and the connecting box. A buffer assembly is arranged between the connecting box and the supporting arc plate. Support assemblies are arranged between the first guide rod and the side plate and between the second guide rod and the side plate. The tunnel anti-deformation emergency supporting device has the advantages of multiple buffering, stable support, meeting the tunnel supporting requirements of different widths, simple operation and reliable practicability.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, specifically to an emergency support device for tunnel deformation resistance. Background Technology

[0002] Currently, in shield tunnel engineering, the deformation and stress field changes of the surrounding soil layers or soil body caused by construction, as well as the squeezing, stirring and vibration of construction machinery, will all lead to the stress imbalance of the existing tunnel structure, causing the tunnel structure to undergo various deformations such as local horizontal displacement, settlement, tension or compression. Once the above deformations exceed the bearing capacity of the tunnel structure, the tunnel deformation will inevitably continue to develop, leading to the destruction of the tunnel structure. Therefore, special support devices are needed to support the tunnel.

[0003] Most existing tunnel deformation-resistant emergency support devices support the tunnel roof using hydraulic cylinders and curved plates. The tunnel sidewalls do not have effective contact with the support device, and the support relies on the structure of the device itself to support the tunnel roof, which increases the wear and tear of the device. At the same time, the fixed structure makes it difficult to buffer falling objects from the roof, and the device is easily damaged by hard impacts, reducing its service life.

[0004] Therefore, there is a need to provide an emergency support device for tunnel deformation resistance, which aims to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a tunnel deformation-resistant emergency support device to solve the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An emergency support device for tunnel deformation resistance includes a support assembly. The support assembly includes symmetrically arranged side plates. The ends of the side plates away from the ground are connected via a connecting box. A supporting arc plate is provided above the connecting box. A first guide rod connected to the supporting arc plate passes through the middle of the connecting box. Second guide rods connected to the supporting arc plate are symmetrically and slidably arranged at both ends of the connecting box. A first spring connects the second guide rods and the connecting box. A buffer assembly is provided between the connecting box and the supporting arc plate. Support assemblies are provided between the first guide rods and the side plates, and between the second guide rods and the side plates. The support assembly includes a connecting plate connected to the ends of the first and second guide rods away from the supporting arc plate. An installation cylinder is provided on one side of the side plates, close to each other. A lifting rod is slidably arranged inside the installation cylinder. The system comprises several sliding columns, and several crossbars slidingly mounted on the side plate. A movable plate is installed at the end of each crossbar near the connecting box, and the movable plate has an inclined groove that slides with the sliding columns. An abutment plate is installed at the end of each crossbar away from the connecting box. Adjustment boxes are installed on both ends of the connecting plate near the ground. A lifting rack connected to a lifting rod slides inside the adjustment box. A rotating rod rotates inside the adjustment box, and an adjusting gear meshes with the lifting rack on the rotating rod. One end of the rotating rod passes through the adjustment box and connects to a limiting gear movably mounted outside the adjustment box. A crank is mounted at the outer end of the limiting gear. An adjusting rod slides on the adjustment box, and a limiting rack movably meshes with the limiting gear on the adjusting rod. A fourth spring connects the adjusting rod and the adjustment box.

[0008] As a further aspect of the present invention, the buffer component includes:

[0009] A sliding rod is symmetrically arranged on both sides of a first guide rod and connected to a connecting cylinder that is slidably arranged on the first guide rod. A sliding cylinder is slidably provided on the sliding rod, and a second spring is connected between the sliding cylinder and the connecting cylinder.

[0010] The first hinge rod has one end hinged to the supporting arc plate and the other end hinged to the slide cylinder.

[0011] A rotating seat is symmetrically arranged on the connecting box, and a transmission gear is rotatably mounted on the rotating seat;

[0012] The second hinge rod has one end connected to the transmission gear and the other end hinged to the slide cylinder;

[0013] A buffer module is provided, which is located inside the connecting box and engages with the transmission gear.

[0014] As a further embodiment of the present invention, the buffer module includes:

[0015] A chute, wherein the chute is disposed within the connecting box;

[0016] A sealing slide plate is slidably disposed inside a slide groove, and a movable rod is installed on one side of the sealing slide plate;

[0017] A transmission rack, which is mounted on a movable rod and meshes with a transmission gear;

[0018] A guide cylinder, wherein the guide cylinder is disposed in a sliding groove and slidably connected to a moving rod;

[0019] A third spring, which is connected between the slide and the moving rod;

[0020] An air outlet is located at the end of the slide groove away from the sealing slide plate.

[0021] As a further embodiment of the present invention, the bottom of the side plate is also provided with a positioning component for support.

[0022] As a further aspect of the present invention, the positioning component includes:

[0023] A support cylinder is inclinedly disposed between the side plates and connected to the side plates via a mounting seat;

[0024] An adjusting plate is slidably disposed inside a support cylinder. One end of the adjusting plate is connected to a base plate that movably abuts against the ground. A through groove is provided inside the adjusting plate.

[0025] A positioning rack, wherein the positioning rack is disposed on one side of the through groove;

[0026] A positioning gear is rotatably disposed inside a support cylinder and meshes with a positioning rack. The positioning gear is connected to a positioning motor mounted on the support cylinder.

[0027] As a further aspect of the present invention, the closest distance from the limiting rack to the adjusting box is greater than the width of the limiting rack.

[0028] As a further embodiment of the present invention, the end of the inclined groove near the side plate is close to the regulating box.

[0029] As a further embodiment of the present invention, the slide cylinder is located between the rotating seat and the first guide rod.

[0030] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0031] In this invention, the supporting arc plate moves downward under force, which in turn drives the connecting plate downward by moving the first and second guide rods downward. The connecting plate drives the adjusting box downward. The limiting rack fixes the adjusting gear by meshing with the limiting gear. The adjusting gear pushes the lifting rod downward by meshing with the lifting rack. The lifting rod drives the moving plates away from each other through the sliding cooperation between the sliding column and the inclined groove. The moving plates push the abutment plate away from the side plate through the crossbar. The abutment plate supports the supporting arc plate by abutting against the tunnel side wall. Through the cooperation of the lifting rack, adjusting gear, rotating rod, limiting gear, and limiting rack, the distance between the abutment plate and the side plate can be adjusted to meet the support requirements of tunnels of different widths. Through the buffer component, the downward movement of the supporting arc plate can be buffered in multiple ways, improving the support effect of the device. It has the effects of multiple buffers, stable support, meeting the support requirements of tunnels of different widths, simple operation, and reliable practicality.

[0032] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of an embodiment of the invention.

[0034] Figure 2 for Figure 1 A magnified view of A in the middle.

[0035] Figure 3 for Figure 1 A magnified view of B in the middle.

[0036] Figure 4 for Figure 1 A magnified view of C.

[0037] Figure 5 This is a schematic diagram of the slide in an embodiment of the invention.

[0038] Reference numerals: 1-Support assembly, 101-Side plate, 102-Connecting box, 103-Supporting arc plate, 104-First guide rod, 105-Second guide rod, 106-First spring, 2-Buffer assembly, 201-First hinge rod, 202-Slide rod, 203-Slide cylinder, 204-Second spring, 205-Second hinge rod, 206-Transmission gear, 207-Rotating seat, 208-Transmission rack, 209-Slide groove, 210-Sealing slide plate, 211-Moving rod, 212-Air outlet, 213-Guide cylinder, 214-Third spring, 215-Connecting cylinder, 3-Support assembly, 30 1-Connecting plate, 302-Lifting rod, 303-Mounting cylinder, 304-Moving plate, 305-Inclined groove, 306-Sliding column, 307-Horizontal bar, 308-Abutting plate, 309-Lifting rack, 310-Adjusting gear, 311-Rotating rod, 312-Limiting gear, 313-Handle, 314-Limiting rack, 315-Adjusting rod, 316-Fourth spring, 317-Adjusting box, 4-Positioning assembly, 401-Mounting base, 402-Supporting cylinder, 403-Adjusting plate, 404-Base plate, 405-Through groove, 406-Positioning rack, 407-Positioning gear, 408-Positioning motor. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0041] In one embodiment of the present invention, see Figure 1 and Figure 3The tunnel deformation-resistant emergency support device includes a support assembly 1. The support assembly 1 includes symmetrically arranged side plates 101. The ends of the side plates 101 away from the ground are connected via a connecting box 102. A supporting arc plate 103 is provided above the connecting box 102. A first guide rod 104, connected to the supporting arc plate 103, passes through the middle of the connecting box 102. Second guide rods 105, symmetrically arranged at both ends of the connecting box 102 and slidably connected to the supporting arc plate 103, are connected to the connecting box 102. A first spring 106 is provided. A buffer assembly 2 is provided between the connecting box 102 and the supporting arc plate 103. A support assembly 3 is provided between the first guide rod 104 and the side plate 101 and between the second guide rod 105 and the side plate 101. The support assembly 3 includes a connecting plate 301 connected to the end of the first guide rod 104 and the second guide rod 105 away from the supporting arc plate 103. An mounting cylinder 303 is provided on one side of the side plates 101 close to each other. A lifting rod 302 is slidably provided in the mounting cylinder 303. A plurality of sliding joints are distributed on the lifting rod 302. The column 306 has several crossbars 307 slidably mounted on the side plate 101. A movable plate 304 is installed at the end of each crossbar 307 near the connecting box 102. The movable plate 304 has an inclined groove 305 that slidably engages with the sliding column 306. An abutment plate 308 is installed at the end of each crossbar 307 away from the connecting box 102. Adjustment boxes 317 are installed on both ends of the connecting plate 301 near the ground. A lifting rack 309 connected to the lifting rod 302 is slidably mounted inside the adjustment box 317. A rotating mechanism is rotatably mounted inside the adjustment box 317. A lever 311 is provided with an adjusting gear 310 that meshes with a lifting rack 309. One end of the lever 311 passes through an adjusting box 317 and is connected to a limiting gear 312 that is movably disposed on the outside of the adjusting box 317. A rocker handle 313 is provided at the outer end of the limiting gear 312. An adjusting rod 315 is slidably disposed on the adjusting box 317. A limiting rack 314 that meshes with the limiting gear 312 is provided on the adjusting rod 315. A fourth spring 316 is connected between the adjusting rod 315 and the adjusting box 317.

[0042] In this embodiment, the supporting arc plate 103 is forced to move downward, which in turn drives the connecting plate 301 to move downward by moving the first guide rod 104 and the second guide rod 105 downward. The connecting plate 301 drives the adjusting box 317 to move downward. The limiting rack 314 fixes the adjusting gear 310 by meshing with the limiting gear 312. The adjusting gear 310 pushes the lifting rod 302 downward by meshing with the lifting rack 309. The lifting rod 302 drives the moving plate 304 to move away from each other through the sliding cooperation between the sliding column 306 and the inclined groove 305. The moving plate 304 pushes the abutment plate 308 away from the side plate 101 through the crossbar 307. The abutment plate 308 supports the supporting arc plate 103 by abutting against the tunnel sidewall. The lifting rack 309, adjusting gear 310, rotating rod 311, limiting gear 312 and limiting rack 314 are all connected to the supporting arc plate 103. The combination of 4 allows for adjustment of the distance between the abutment plate 308 and the side plate 101, thereby meeting the support requirements of tunnels of different widths. Through the buffer component, the downward movement of the support arc plate 103 can be buffered in multiple ways, improving the support effect of the device. It has the effects of multiple buffering, stable support, meeting the support requirements of tunnels of different widths, simple operation, and reliable practicality. Among them, the closest distance from the limiting rack 314 to the adjusting box 317 is greater than the width of the limiting rack 314, ensuring the meshing and disengagement between the limiting rack 314 and the limiting gear 312, which facilitates the movement and positioning of the adjusting gear 310. The end of the inclined groove 305 near the side plate 101 is close to the adjusting box 317, ensuring that the abutment plate 308 moves away from the side plate 101 when the lifting rod 302 moves down, thereby achieving the abutment effect between the abutment plate 308 and the tunnel sidewall.

[0043] In one embodiment of the present invention, see Figure 1 , Figure 2 and Figure 5 The buffer assembly 2 includes a slide rod 202, which is symmetrically arranged on both sides of the first guide rod 104 and connected to a connecting cylinder 215 slidably arranged on the first guide rod 104. A sliding cylinder 203 is slidably arranged on the slide rod 202, and a second spring 204 is connected between the sliding cylinder 203 and the connecting cylinder 215; a first hinge rod 201, one end of which is hinged to the supporting arc plate 103, and the other end of which is hinged to the sliding cylinder 203; a rotating seat 207, which is symmetrically arranged on the connecting box 102, and a transmission gear 206 is rotatably arranged on the rotating seat 207; a second hinge rod 205, one end of which is connected to the transmission gear 206, and the other end of which is hinged to the sliding cylinder 203; and a buffer module, which is disposed in the connecting box 102 and cooperates with the transmission gear 206.

[0044] The buffer module includes a slide groove 209 disposed within the connecting box 102; a sealing slide plate 210 slidably disposed within the slide groove 209, with a moving rod 211 mounted on one side of the sealing slide plate 210; a transmission rack 208 mounted on the moving rod 211 and meshing with a transmission gear 206; a guide cylinder 213 disposed within the slide groove 209 and slidably connected to the moving rod 211; a third spring 214 connected between the slide groove 209 and the moving rod 211; and an air outlet 212 disposed at the end of the slide groove 209 away from the sealing slide plate 210.

[0045] In this embodiment, initially, the angle between the first hinge rod 201 and the second hinge rod 205 is an obtuse angle. The second spring 204 and the third spring 214 are at their original lengths. The side of the sealing slide plate 210 away from the air outlet 212 forms a sealed cavity with the slide groove 209. When the supporting arc plate 103 is moved downward under force, the supporting arc plate 103 pushes the slide cylinder 203 closer to the first guide rod 104 through the first hinge rod 201. Since the length of the first hinge rod 201 is fixed, the slide cylinder 203 drives the connecting cylinder 215 to slide down along the first guide rod 104 through the slide rod 202. The second hinge rod 205 rotates synchronously, and the second hinge rod 205 drives the transmission gear 206 to rotate clockwise. The transmission gear 206 drives the moving rod by meshing with the transmission rack 208. 211 moves away from the first guide rod 104. The moving rod 211 drives the sealing slide plate 210 to move synchronously, which increases the space of the sealing cavity, reduces the air pressure inside the sealing cavity, and increases the pressure difference between the inside and outside of the sealing cavity, thereby buffering the movement of the sealing slide plate 210. At the same time, the third spring 214 is stressed and contracts, thereby providing multiple buffers for the downward movement of the supporting arc plate 103 and improving the support effect of the device. Through the air outlet 212, the air pressure balance in the sliding groove of the sealing slide plate 210 near the transmission rack 208 can be maintained. The sliding cylinder 203 is located between the rotating seat 207 and the first guide rod 104, which can ensure that when the supporting arc plate 103 moves downward, the sliding cylinder 203 is close to the first guide rod 104, thereby increasing the space of the sealing cavity.

[0046] In one embodiment of the present invention, see Figure 1 and Figure 4 The bottom of the side plate 101 is also provided with a positioning component 4 for support.

[0047] The positioning component 4 includes a support cylinder 402, which is inclinedly disposed between side plates 101 and connected to the side plates 101 via a mounting base 401; an adjusting plate 403, which is slidably disposed within the support cylinder 402, with one end of the adjusting plate 403 connected to a base plate 404 that movably abuts against the ground, and a through groove 405 disposed inside the adjusting plate 403; a positioning rack 406, which is disposed on one side of the through groove 405; and a positioning gear 407, which is rotatably disposed within the support cylinder 402 and meshes with the positioning rack 406, and is connected to a positioning motor 408 mounted on the support cylinder 402.

[0048] In this embodiment, in the initial state, there is a gap between the base plate 404 and the ground, and the adjusting plate 403 is located at the highest point. When it is necessary to fix and support the position of the side plate 101, the positioning motor 408 drives the positioning gear 407 to rotate clockwise. The positioning gear 407 drives the adjusting plate 403 to move down along the support cylinder 402 by meshing with the positioning rack 406. The adjusting plate 403 positions and supports the side plate 101 by driving the base plate 404 to contact the ground, thereby improving the stability of the device.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tunnel anti-deformation emergency support device comprising a support assembly, the support assembly comprising symmetrically arranged side plates, one end of the side plates away from the ground being connected through a connecting box, characterized in that, The connecting box is provided with a support arc plate above, a first guide rod penetrating through the middle of the connecting box and connected with the support arc plate, a second guide rod symmetrically and slidingly arranged at both ends of the connecting box and connected with the support arc plate, a first spring connected between the second guide rod and the connecting box, a buffer assembly arranged between the connecting box and the support arc plate, a support assembly arranged between the first guide rod and the side plate and between the second guide rod and the side plate, the support assembly comprising a connecting plate connected to the first guide rod and the second guide rod away from one end of the support arc plate, the side plate being provided with a mounting cylinder on the side close to each other, a lifting rod slidingly arranged in the mounting cylinder, a plurality of sliding columns distributed on the lifting rod, a plurality of horizontal rods slidingly arranged on the side plate, a moving plate mounted on one end of the horizontal rod close to the connecting box, an inclined groove provided on the moving plate and slidingly matched with the sliding column, an abutting plate mounted on one end of the horizontal rod away from the connecting box, an adjusting box mounted on one side of both ends of the connecting plate close to the ground, the inclined groove being close to the adjusting box on one end close to the side plate, and the abutting plate being away from the side plate when the lifting rod is lowered; a lifting rack slidingly arranged in the adjusting box and connected with the lifting rod, a rotating rod rotatably arranged in the adjusting box, an adjusting gear arranged on the rotating rod and meshingly connected with the lifting rack, one end of the rotating rod penetrating through the adjusting box and connected with a limiting gear movably arranged outside the adjusting box, a crank handle arranged on the outer end of the limiting gear, an adjusting rod slidingly arranged on the adjusting box, a limiting rack arranged on the adjusting rod and movably meshed with the limiting gear, the closest distance from the limiting rack to the adjusting box being greater than the width of the limiting rack, so as to ensure the meshing and separation between the limiting rack and the limiting gear; a fourth spring connected between the adjusting rod and the adjusting box, the support arc plate being forced to be lowered and pushing the connecting plate to be lowered by driving the first guide rod and the second guide rod to be lowered, the connecting plate driving the adjusting box to be lowered, the limiting rack fixing the adjusting gear by meshing with the limiting gear, the adjusting gear driving the lifting rod to be lowered by meshing with the lifting rack, the lifting rod driving the moving plate to be away from each other by the sliding cooperation between the sliding column and the inclined groove, the moving plate driving the abutting plate to be away from the side plate by the horizontal rod, and the abutting plate supporting the support arc plate by abutting with the side wall of the tunnel.

2. The tunnel anti-deformation emergency support device according to claim 1, characterized in that, The buffer assembly comprises: a sliding rod symmetrically arranged on both sides of the first guide rod and connected with a connecting cylinder slidingly arranged on the first guide rod, a sliding cylinder slidingly arranged on the sliding rod and connected with a second spring between the sliding cylinder and the connecting cylinder; a first hinge rod hingedly connected with the support arc plate on one end and hingedly connected with the sliding cylinder on the other end; a rotating seat symmetrically arranged on the connecting box and rotatably provided with a transmission gear; a second hinge rod hingedly connected with the transmission gear on one end and hingedly connected with the sliding cylinder on the other end; a buffer module arranged in the connecting box and matched with the transmission gear.

3. The tunnel anti-deformation emergency support device according to claim 2, characterized in that, The buffer module comprises: a sliding groove arranged in the connecting box; a sealing sliding plate slidingly arranged in the sliding groove, and a moving rod mounted on one side of the sealing sliding plate. A transmission rack is mounted on the moving rod and is in meshing connection with the transmission gear; A guide cylinder is arranged in the sliding groove and is in sliding connection with the moving rod; A third spring is connected between the sliding groove and the moving rod; An air outlet is arranged at the end of the sliding groove away from the sealing sliding plate.

4. The tunnel anti-deformation emergency support device according to claim 1, characterized in that, The bottom of the side plate is also provided with a positioning assembly for support.

5. The tunnel anti-deformation emergency support device according to claim 4, characterized in that, The positioning assembly comprises: A support cylinder is obliquely arranged between the side plates and is connected with the side plates through the mounting seat; An adjusting plate is slidingly arranged in the support cylinder, one end of the adjusting plate is connected with a bottom plate which is in movable abutment with the ground, and a through slot is arranged in the adjusting plate; A positioning rack is arranged on one side of the through slot; A positioning gear is rotatably arranged in the support cylinder and is in meshing connection with the positioning rack, and the positioning gear is connected with a positioning motor mounted on the support cylinder.

6. The tunnel anti-deformation emergency support device according to claim 2, characterized in that, The sliding cylinder is located between the rotating seat and the first guide rod.

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