Supporting device for underground excavation engineering

Abstract

A supporting device for underground excavation engineering comprises a fixing plate, a walking mechanism is installed on the bottom face of the fixing plate, a linear lifting device is installed on the upper portion of the fixing plate, and an angle adjusting device is installed at the top lifting end of the linear lifting device. The angle adjusting device comprises a working table, a telescopic rod, a supporting plate and an angle locking device, the working table is installed at the lifting end of the linear lifting device, the supporting plate is arranged above the working table, the positions, close to the four corners of the working table, of the top of the working table are each provided with a universal hinge joint, and the angle locking device is connected with the telescopic rod. The bottom of the supporting plate is provided with a hinge seat corresponding to the universal hinge joint, one end of the telescopic rod is hinged to the workbench through the universal hinge joint, the other end of the telescopic rod is hinged to the hinge seat at the bottom of the supporting plate, and the supporting plate is provided with an anchoring device used for fixing the supporting plate to the inner side of the cavern. Supporting, anchoring and angle adjusting functions are integrated, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground dark excavation engineering, and in particular relates to a supporting device for underground dark excavation engineering. Background Art

[0002] The shallow buried tunneling method is a method of conducting underground tunneling construction of various types of underground caverns close to the surface. In the soft surrounding rock strata in cities and towns, underground projects are built under shallow buried conditions. It is based on the transformation of geological conditions, focuses on controlling surface settlement, uses grids and sprayed anchors as initial support methods, and is constructed according to the eighteen-character principle. This is called the shallow buried tunneling method. During the construction process, it is usually necessary to set up pre-support devices inside the cavern, but the existing support devices can only fix the top or support the sides, and cannot adjust the support angle according to actual conditions, which can easily cause cavern collapse. Utility Model Content

[0003] The utility model solves the deficiencies of the prior art and provides a supporting device for underground tunneling engineering which integrates supporting, anchoring and angle adjustment functions and improves work efficiency.

[0004] To achieve the above-mentioned purpose, the utility model firstly proposes a supporting device for underground dark excavation engineering, comprising a fixed plate, a walking mechanism is installed on the bottom surface of the fixed plate, a linear lifting device is installed on the upper part of the fixed plate, and an angle adjustment device is installed on the top lifting end of the linear lifting device;

[0005] The angle adjustment device comprises a workbench, a telescopic rod, a support plate and an angle locking device. The workbench is installed on the lifting end of the linear lifting device, the support plate is arranged above the workbench, a universal hinge joint is respectively installed on the top of the workbench and near its four corners, a hinge seat corresponding to the universal hinge joint is arranged at the bottom of the support plate, one end of the telescopic rod is hinged to the workbench through the universal hinge joint, and the other end is hinged to the hinge seat at the bottom of the support plate, and an anchoring device for fixing the support plate to the inner side of the cavern is installed on the support plate;

[0006] The angle locking device includes a locking plate fixed to the middle of the top surface of the workbench, the locking plate is arranged vertically, a rotating shaft is fixed to the middle of one side of the locking plate, the rotating shaft and the locking plate are arranged perpendicularly, and a plurality of adjustment holes are evenly arranged on the locking plate with the rotating shaft as the center, one end of the rotating rod is rotatably connected to the rotating shaft, and an elastic locking tongue matching the adjusting hole is installed on the other end, the rotation angle of the rotating rod around the rotating shaft is locked by the elastic locking tongue inserted in the adjusting hole, a support rod is fixed to the rotating rod, the other end of the support rod is installed in the middle of the bottom surface of the support plate, and the support rod is arranged parallel to the rotating rod.

[0007] In this embodiment, the elastic locking tongue includes a sleeve fixed at the end of the rotating rod, a locking pin is inserted in the sleeve, the locking pin is arranged perpendicular to the locking plate and matches the size of the adjusting socket, a baffle larger than the inner diameter of the sleeve is fixed on one end of the locking pin, the other end of the locking pin is inserted in the sleeve, and a first spring is also mounted on the outside of the locking pin, one end of the first spring is fixed on the baffle, and the other end is fixed on the sleeve. In the initial state, the locking pin is inserted into the adjusting socket through the sleeve under the action of the first spring.

[0008] In this embodiment, the support plate is in an arc shape that matches the inner wall of the cave chamber.

[0009] In this embodiment, the linear lifting device is a scissor-type lifting mechanism.

[0010] In this embodiment, the telescopic rod is a telescopic rod that can lock the telescopic position.

[0011] In this embodiment, the anchoring device includes a piercing rod, an anchoring rod, a barbed plate and a second spring. A plurality of piercing rods arranged perpendicularly to the support plate are fixed to the top surface of the support plate. The piercing rod is a hollow tube with upper and lower openings. The piercing rod passes through the support plate. An anchoring rod matching the inner diameter of the piercing rod is installed in the piercing rod. The length of the anchoring rod is greater than that of the piercing rod. In the initial state, the tail end of the anchoring rod extends from the bottom surface of the support plate.

[0012] In this embodiment, a plurality of protective plates are hingedly connected to the outer side of the top opening of the anchor rod, and the plurality of protective plates are combined to form a cone shape on the outer side of the top opening of the anchor rod.

[0013] In this embodiment, a rubber ring protruding from the inner wall of the puncture rod is installed inside the inner wall, and the rubber ring is used to prevent the anchor rod inserted in the puncture rod from sliding down and falling.

[0014] In this embodiment, the top end of the anchor rod is a conical piercing end, and the tail end is provided with a striking plate whose outer diameter is larger than the outer diameter of the anchor rod, and the outer diameter of the striking plate is larger than the inner diameter of the puncturing rod.

[0015] In this embodiment, a plurality of axially arranged grooves are provided on the outer side wall of the tail end of the anchor rod extending out of the support plate. The plurality of grooves are symmetrically arranged with the anchor rod as the center. A barb plate matching the size of the groove is hinged in the groove. The top of the barb plate is hinged to the groove, and the middle part is connected to the groove through a second spring. In the initial state, the second spring props the bottom of the barb plate away from the groove, and the barb plate is in an expanded state.

[0016] With the above structure, the utility model has the following advantages:

[0017] 1. The device can adjust the angle of the top surface of the support plate through the angle adjustment device, so as to allow the support plate to adjust the angle according to the requirements of the side wall support in different directions of the cave to meet different support requirements; the support plate is fixed to the inner side of the cave through the anchor device to prevent the cave from collapsing;

[0018] 2. This device uses universal wheels as the walking mechanism, making it more convenient and flexible for the fixed plate to move in the cave.

[0019] 3. The linear lifting device of this device provides stable support, which helps to improve the safety of the project.

[0020] 4. The anchoring device of this device can ensure that the support plate is firmly fixed to the inner side of the cavern through the cooperation of the piercing rod and the anchoring rod, thereby enhancing the stability of the entire support device.

[0021] To sum up, the overall design of the device is compact, space-saving, and has integrated support, anchoring, and angle adjustment functions, which improves work efficiency. The detachable design of some components facilitates maintenance and replacement, improves the long-term performance of the equipment, and is suitable for limited space environments such as underground excavation projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 For this utility model Figure 1 Enlarged view at A in the middle;

[0024] Figure 3 For this utility model Figure 1 Enlarged view at B in the middle;

[0025] Figure 4 It is a side view of the utility model;

[0026] Figure 5 For this utility model Figure 4 Enlarged view at center C.

[0027] In the accompanying drawings: 1. fixed plate; 2. linear lifting device; 3. angle adjustment device; 301. workbench; 302. universal hinge joint; 303. telescopic rod; 304. support plate; 305. locking plate; 306. support rod; 307. rotating shaft; 308. rotating rod; 309. sleeve; 310. baffle; 311. locking pin; 312. first spring; 4. adjustment socket; 5. anchoring device; 51. piercing rod; 52. anchoring rod; 53. barbed plate; 54. second spring; 6. groove; 7. protective plate; 8. universal wheel. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] like Figures 1 to 5 As shown, the utility model is a support device for underground tunneling engineering, including a fixed plate 1, and a plurality of universal wheels 8 are connected to the lower side of the fixed plate 1 as a walking mechanism, so that the fixed plate 1 can move in the cave. The upper part of the fixed plate 1 is connected to a linear lifting device 2 for supporting. In this embodiment, the linear lifting device 2 adopts a scissor-type lifting mechanism, and an angle adjustment device 3 is installed on the top lifting end of the linear lifting device 2. A support plate 304 is installed on the angle adjustment end of the angle adjustment device 3, and an anchoring device 5 for fixing the support plate 304 to the inner side of the cave is installed on the support plate 304.

[0031] The angle adjustment device 3 includes a workbench 301, a telescopic rod 303, a support plate 304 and an angle locking device. The workbench 301 is installed on the lifting end of the linear lifting device 2, and the linear lifting device 2 is used to drive the workbench 301 to lift and lower. A universal hinge 302 is installed on the top of the workbench 301 and at least near its four corners. The bottom of the support plate 304 is provided with an articulated seat corresponding to the universal hinge 302. One end of the telescopic rod 303 is hinged to the workbench 301 through the universal hinge 302, and the other end is hinged to the articulated seat at the bottom of the support plate 304. The telescopic rod 303 and the articulated seat are detachably connected. Further, the telescopic rod 303 and the articulated seat can be connected by bolts or the like to achieve the purpose of detachable connection.

[0032] The angle locking device includes a locking plate 305 fixed to the middle of the top surface of the workbench 301, the locking plate 305 is arranged vertically, a rotating shaft 307 is fixed to the middle of one side of the locking plate 305, the rotating shaft 307 is arranged perpendicular to the locking plate 305, a plurality of adjustment sockets 4 are evenly arranged on the locking plate 305 with the rotating shaft 307 as the center, one end of a rotating rod 308 is rotatably connected to the rotating shaft 307, and an elastic locking tongue matching the adjusting socket 4 is installed on the other end, the rotation angle of the rotating rod 308 around the rotating shaft 307 is locked by the elastic locking tongue inserted in the adjusting socket 4, one end of a supporting rod 306 is fixed to the rotating rod 308, and the other end of the supporting rod 306 is detachably installed in the middle of the bottom surface of the supporting plate 304, and the supporting rod 306 is arranged parallel to the rotating rod 308;

[0033] Specifically, the elastic locking tongue includes a sleeve 309 fixed to the end of the rotating rod 308, a locking pin 311 is inserted in the sleeve 309, the locking pin 311 is arranged vertically on the locking plate 305 and matches the size of the adjusting socket 4, a baffle 310 larger than the inner diameter of the sleeve 309 is fixed on one end of the locking pin 311, the other end of the locking pin 311 is inserted in the sleeve 309, and a first spring 312 is also sleeved outside the locking pin 311, one end of the first spring 312 is fixed on the baffle 310, and the other end is fixed on the sleeve 309. In the initial state, the locking pin 311 is inserted into the adjusting socket 4 through the sleeve 309 under the action of the first spring 312;

[0034] like Figures 1 to 3 As shown, the anchoring device 5 includes a piercing rod 51, an anchoring rod 52, a barbed plate 53 and a second spring 54. A plurality of piercing rods 51 arranged perpendicularly to the support plate 304 are fixed to the top surface of the support plate 304, the piercing rods 51 pass through the support plate 304, and the piercing rods 51 are hollow tubes with upper and lower openings, and the piercing rods 51 are used to pierce into the soil layer. An anchor rod 52 is installed in the piercing rod 51, and the length of the anchor rod 52 is greater than that of the piercing rod 51. In the initial state, the tail end of the anchor rod 52 extends from the bottom surface of the support plate 304, and a plurality of protective plates 7 are hinged on the outer side of the top opening of the anchor rod 52. The plurality of protective plates 7 are combined into a cone shape on the outer side of the top opening of the anchor rod 52. The protective plates 7 prevent the soil from falling into the piercing rod 51 after the piercing rod 51 penetrates the soil layer. A rubber ring protruding from the inner wall of the piercing rod 51 is installed inside the inner wall of the piercing rod 51, and the rubber ring prevents the anchor rod 52 inserted in the piercing rod 51 from sliding down and falling.

[0035] The top end of the anchor rod 52 is a conical piercing end, and the tail end is provided with a striking plate with an outer diameter larger than the outer diameter of the anchor rod 52. The striking plate is convenient for a hammer to hit the anchor rod 52, and the outer diameter of the striking plate is larger than the inner diameter of the piercing rod 51. The outer side wall of the tail end of the anchor rod 52 extending out of the support plate 304 is provided with a plurality of axially arranged grooves 6, and the plurality of grooves 6 are symmetrically arranged with the anchor rod 52 as the center. A barb plate 53 matching the size of the groove 6 is hinged in the groove 6, and the top of the barb plate 53 is hinged to the groove 6, and the middle part is connected to the groove 6 through a second spring 54. In the initial state, the second spring 54 props up the bottom of the barb plate 53, so that the barb plate 53 is in an expanded state.

[0036] In this embodiment, the support plate 304 is a shape that matches the inner wall of the cave chamber. The linear lifting device 2 is driven by an electric telescopic rod or an oil cylinder or an air cylinder. The telescopic rod 306 is a telescopic rod with a lockable telescopic position. Of course, the telescopic rod 306 can also be an electric telescopic rod or an oil cylinder or an air cylinder.

[0037] The working process of the above scheme:

[0038] First, push the device into the cave, start the linear lifting device 2 to drive the workbench 301 to move upward, and when the piercing rod 51 contacts the soil layer, the linear lifting device 2 continues to drive the workbench 301 to move, so that the piercing rod 51 is completely inserted into the soil layer, and the support plate 304 fits the inner side of the cave. At this time, use a tool to drive the anchor rod 52 into the soil layer, and when the barb plate 53 contacts the inner wall of the piercing rod 51, the barb plate 53 is forced to rotate into the groove 6, and the barb plate 53 is used to prevent the anchor rod 52 from retreating. The piercing end of the anchor rod 52 slides in the piercing rod 51 and inserts into the soil layer, further fixing the support plate 304 to the inner side of the cave.

[0039] When it is necessary to support the side walls in different directions of the cave, the baffle plate 310 is pulled backward to disengage the locking pin 311 from the adjusting socket 4. At this time, the rotating rod 308 is rotated to make the support rod 306 drive the support plate 304 to rotate accordingly. The telescopic rod 306 adjusts the length of the telescopic rod 306 adaptively with the different angles of the support plate 304. When the support plate 304 rotates to a suitable angle, it stops rotating, the baffle plate 310 is released, the first spring 312 drives the locking pin 311 to rebound, and the locking pin 311 is inserted into the adjusting socket 4 to fix the rotation angle of the support rod 306. At this time, the angle of the support plate 304 is fixed, and the linear lifting device 2 is started again to drive the workbench 301 and other components to move upward so that the support plate 304 contacts the inner side of the cave.

[0040] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A supporting device for underground tunneling engineering, characterized in that: It comprises a fixed plate, a walking mechanism is installed on the bottom surface of the fixed plate, a linear lifting device is installed on the upper part of the fixed plate, and an angle adjustment device is installed on the top lifting end of the linear lifting device; The angle adjustment device comprises a workbench, a telescopic rod, a support plate and an angle locking device. The workbench is installed on the lifting end of the linear lifting device, the support plate is arranged above the workbench, a universal hinge joint is respectively installed on the top of the workbench and near its four corners, a hinge seat corresponding to the universal hinge joint is arranged at the bottom of the support plate, one end of the telescopic rod is hinged to the workbench through the universal hinge joint, and the other end is hinged to the hinge seat at the bottom of the support plate, and an anchoring device for fixing the support plate to the inner side of the cavern is installed on the support plate; The angle locking device includes a locking plate fixed to the middle of the top surface of the workbench, the locking plate is arranged vertically, a rotating shaft is fixed to the middle of one side of the locking plate, the rotating shaft and the locking plate are arranged perpendicularly, and a plurality of adjustment holes are evenly arranged on the locking plate with the rotating shaft as the center, one end of the rotating rod is rotatably connected to the rotating shaft, and an elastic locking tongue matching the adjusting hole is installed on the other end, the rotation angle of the rotating rod around the rotating shaft is locked by the elastic locking tongue inserted in the adjusting hole, a support rod is fixed to the rotating rod, the other end of the support rod is installed in the middle of the bottom surface of the support plate, and the support rod is arranged parallel to the rotating rod.

2. A supporting device for underground tunneling engineering according to claim 1, characterized in that: The elastic locking tongue includes a sleeve fixed at the end of the rotating rod, a locking pin is inserted in the sleeve, the locking pin is arranged perpendicular to the locking plate and matches the size of the adjusting socket, a baffle larger than the inner diameter of the sleeve is fixed on one end of the locking pin, the other end of the locking pin is inserted in the sleeve, and a first spring is also mounted on the outside of the locking pin, one end of the first spring is fixed on the baffle, and the other end is fixed on the sleeve. In the initial state, the locking pin is inserted into the adjusting socket through the sleeve under the action of the first spring.

3. The supporting device for underground tunneling engineering according to claim 1, characterized in that: The support plate is in an arc shape that matches the inner wall of the cave.

4. The supporting device for underground tunneling engineering according to claim 1, characterized in that: The linear lifting device is a scissor-type lifting mechanism.

5. The supporting device for underground tunneling engineering according to claim 1, characterized in that: The telescopic rod is a telescopic rod whose telescopic position can be locked.

6. A supporting device for underground tunneling engineering according to any one of claims 1 to 5, characterized in that: The anchoring device includes a puncturing rod, an anchoring rod, a barbed plate and a second spring. A plurality of puncturing rods arranged perpendicularly to the support plate are fixed to the top surface of the support plate. The puncturing rod is a hollow tube with upper and lower openings. The puncturing rod passes through the support plate. An anchoring rod matching the inner diameter of the puncturing rod is installed in the puncturing rod. The length of the anchoring rod is greater than that of the puncturing rod. In the initial state, the tail end of the anchoring rod extends from the bottom surface of the support plate.

7. A supporting device for underground tunneling engineering according to claim 6, characterized in that: A plurality of protective plates are hingedly connected to the outer side of the top opening of the anchor rod, and the plurality of protective plates are combined to form a cone shape on the outer side of the top opening of the anchor rod.

8. The supporting device for underground tunneling engineering according to claim 6, characterized in that: A rubber ring protruding from the inner wall of the puncture rod is installed inside the inner wall.

9. The supporting device for underground tunneling engineering according to claim 6, characterized in that: The top end of the anchor rod is a conical piercing end, and the tail end is provided with a striking plate whose outer diameter is larger than the outer diameter of the anchor rod, and the outer diameter of the striking plate is larger than the inner diameter of the puncturing rod.

10. The supporting device for underground tunneling engineering according to claim 6, characterized in that: A plurality of axially arranged grooves are provided on the outer side wall of the tail end of the anchor rod extending out of the support plate. The plurality of grooves are symmetrically arranged with the anchor rod as the center. A barb plate matching the size of the groove is hinged in the groove. The top of the barb plate is hinged to the groove, and the middle part is connected to the groove through a second spring. In the initial state, the second spring props up the bottom of the barb plate away from the groove, and the barb plate is in an expanded state.

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