Tunnel anti-deformation emergency supporting device

Abstract

The tunnel anti-deformation emergency supporting device comprises a supporting rod, a supporting plate, a bottom plate, a movable plate and a collecting net, the supporting rod is vertically arranged, the length of the supporting rod can be adjusted, and the supporting plate and the bottom plate are fixed to the top end and the bottom end of the supporting rod respectively. The multiple movable plates are installed on the edge of the supporting plate through movable connecting shafts, collecting openings are formed in the movable plates, and collecting nets are arranged at the collecting openings. The supporting plate abuts against the top of a tunnel through cooperation of the supporting rod and the adjusting ring, meanwhile, the movable plate is tightly attached to the top of the tunnel through cooperation of the adjusting assembly, the effective stress area of the top of the tunnel is enlarged, the top of the tunnel is effectively supported, and tunnel deformation is prevented; and the collecting net is arranged on the movable plate, the guiding effect on the broken stones at the top of the tunnel can be achieved, the broken stones are poured into the collecting net, and workers are prevented from being injured by the broken stones.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel support, in particular to a tunnel anti-deformation emergency support device. Background Art

[0002] At present, in shield tunnel projects, the deformation and stress field changes of the surrounding soil layers or soil bodies caused by construction, as well as the squeezing, stirring, vibration, etc. of construction machinery, will lead to the force imbalance of the existing subway tunnel structure, causing the tunnel structure to undergo local horizontal displacement, settlement, stretching, compression and many other deformations. Once the above deformation exceeds the bearing capacity of the tunnel structure, the tunnel deformation will inevitably continue to develop, and then lead to the destruction of the tunnel structure. Therefore, a support device that can cope with the above-mentioned emergencies is needed to prevent the above-mentioned conditions from further deteriorating, or to avoid them completely.

[0003] However, the existing supporting device structure is too simple and can only play a simple supporting role. It can support larger block structures, but some small gravel cannot be blocked. Gravel often falls and injures construction workers. Summary of the invention

[0004] In view of the shortcomings of the prior art, the utility model provides a tunnel anti-deformation emergency support device to solve the problem that the existing support device has a too simple structure and can only play a simple supporting role. It can support larger block structures, but some small gravel cannot be blocked, and gravel often falls and injures construction workers.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a tunnel anti-deformation emergency support device, comprising a support rod, a support plate, a bottom plate, a movable plate and a collecting net, the support rod being vertically arranged and having an adjustable length, the support plate and the bottom plate being respectively fixed at the top and bottom ends of the support rod, there are several movable plates, which are respectively mounted on the edges of the support plates through movable connecting shafts, a collecting port being provided on the movable plate, a collecting net being provided at the collecting port, an adjusting component being provided between the support rod and the movable plate, one end of the adjusting component being connected to the upper part of the support rod, and the other end being connected to the movable plate.

[0006] Preferably, the support rod comprises an outer tube fixedly connected to the base plate, and an inner rod fixedly connected to the support plate, and the inner rod is provided with an adjustment thread.

[0007] Preferably, an adjusting ring is provided on the support rod, a connecting groove is provided in the adjusting ring, a connecting bearing movably connected to the outer wall of the outer tube is provided in the connecting groove, and a rotating thread corresponding to the adjusting thread is provided on the inner wall of the adjusting ring; with such a configuration, under the action of the connecting bearing, the inner rod can be raised and lowered in the outer tube through the cooperation of the rotating thread and the adjusting thread, thereby being able to flexibly adjust the length of the support rod, thereby facilitating the support rod to support the top of the tunnel.

[0008] Preferably, a positioning bolt is provided on the adjusting ring, one end of the positioning bolt passes through the adjusting ring, and the other end is provided with a nut, and the positioning bolt abuts and corresponds to the outer tube.

[0009] Preferably, an auxiliary block is provided on the outer wall of the adjustment ring; by providing the auxiliary block, in cooperation with an external rotating handle, the auxiliary block is inserted into the end of the rotating handle, and the adjusting ring is driven to rotate through the rotating handle, and then the heavy object on the top of the tunnel is lifted using the support rod.

[0010] Preferably, the adjustment assembly includes an adjusting rod, an adjusting outer tube, and an adjusting rod adjustment ring. The outer wall of the adjusting rod is provided with an external thread. The two ends of the adjusting rod and the adjusting outer tube are respectively movably connected to the movable plate and the support rod through a movable connecting shaft assembly. A groove is provided in the adjusting rod adjustment ring. An adjustment bearing movably connected to the outer wall of the adjusting outer tube is provided on the inner wall of the groove. An opening is provided at the center of the top end of the adjusting rod adjustment ring. The adjusting rod passes through the top end opening of the adjusting rod adjustment ring, and an internal thread meshing with the thread of the adjusting rod is provided on the inner wall of the adjusting ring.

[0011] Preferably, an adjusting bolt is provided outside the adjusting ring of the adjusting rod.

[0012] Preferably, an adjusting rod auxiliary block is fixedly provided on the outer wall of the adjusting rod adjusting ring.

[0013] Preferably, a T-shaped mounting groove is provided at the lower edge of the collecting port, an opening is provided at one end of the mounting groove, a positioning frame 10 is slidably connected to the mounting groove 9, and a collecting net is provided on the positioning frame.

[0014] Preferably, the movable plate is recessed from both sides toward the center to form a guide groove, and the end of the guide groove is connected to the collecting port. By setting the guide groove, it is convenient to limit and guide the fallen stones so that the broken stones can fall into the collecting net.

[0015] The utility model provides a tunnel anti-deformation emergency support device, which has the following beneficial effects:

[0016] The utility model uses the cooperation of the support rod and the adjustment ring to make the support plate support the top of the tunnel. At the same time, the cooperation of the adjustment rod makes the movable plate close to the top of the tunnel, thereby expanding the effective force-bearing area of ​​the top of the tunnel, effectively supporting the top of the tunnel and preventing the tunnel from deforming.

[0017] The utility model arranges a collection net on the movable plate, and the movable plate can guide the gravel on the top of the tunnel, pour the gravel into the collection net, and use the collection net to collect the gravel, so as to prevent the gravel from hitting the workers.

[0018] The utility model controls the lifting and lowering of the support plate and the movable plate by extending and retracting the support rod and the adjusting assembly. In an emergency, the support rod and the adjusting assembly are extended to lift the support plate and the movable plate to support the tunnel. In idle time, the support rod adjusting assembly retracts to lift the support plate and the movable plate and retracts them, thus saving space and facilitating storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is a bottom view of the utility model;

[0022] Figure 4 This is a schematic diagram of the main internal structure of the utility model;

[0023] Figure 5 for Figure 4 A partial enlarged schematic diagram of area A;

[0024] Figure 6 for Figure 4 A partial enlarged schematic diagram of area B.

[0025] In the figure: 1. support rod; 101. outer tube; 102. inner rod; 103. adjusting thread; 2. adjusting ring; 201. connecting groove; 202. connecting bearing; 203. auxiliary block; 204. positioning bolt; 3. adjusting rod; 301. adjusting outer tube; 302. adjusting bearing; 303. adjusting ring of adjusting rod; 304. adjusting bolt; 305. auxiliary block of adjusting rod; 4. support plate; 5. bottom plate; 6. movable plate; 601. guide groove; 7. collecting port; 8. collecting net; 9. mounting groove; 10. positioning frame. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 4 As shown, the utility model provides a technical solution: a tunnel anti-deformation emergency support device, comprising a support rod 1, a support plate 4, a bottom plate 5, a movable plate 6 and a collecting net 8, the support rod 1 is vertically arranged, and the length is adjustable, the support plate 4 and the bottom plate 5 are respectively fixed at the top and bottom ends of the support rod 1, there are several movable plates 6, and they are respectively installed on the edges of the support plate 4 through movable connecting shafts, a collecting port 7 is opened on the movable plate 6, and a collecting net 8 is arranged at the collecting port 7 for collecting fallen gravel; an adjusting component is arranged between the support rod 1 and the movable plate 6, one end of the adjusting component is connected to the upper part of the support rod 1, and the other end is connected to the movable plate 6, the adjusting component is used to support the movable plate 6, the support plate 4 and the movable plate 6 are not limited in shape, and can be trapezoidal, circular, polygonal, etc.

[0028] In this embodiment, the support rod 1 includes an outer tube 101 fixedly connected to the base plate 5 and an inner rod 102 fixedly connected to the support plate 4. The inner rod 102 can be retracted into the hollow cavity of the outer tube 101, and an adjustment thread 103 is provided on the inner rod 102.

[0029] like Figure 4 , Figure 5 As shown, in this embodiment, an adjusting ring 2 is provided on the support rod 1, a connecting groove 201 is provided in the adjusting ring 2, a connecting bearing 202 movably connected to the outer wall of the outer tube 101 is provided on the inner wall of the connecting groove 201, an opening is provided at the top center of the adjusting ring 2, an adjusting thread 103 passes through the top opening of the adjusting ring 2, and a rotating thread meshing with the adjusting thread 103 is provided on the inner wall of the adjusting ring 2; in this way, under the action of the connecting bearing 202, the adjusting ring 2 is rotated, and the inner rod 102 can be raised and lowered in the outer tube 101 through the cooperation of the rotating thread and the adjusting thread 103, so that the length of the support rod 1 can be flexibly adjusted, which is convenient for the support rod 1 to support the top of the tunnel.

[0030] Furthermore, a positioning bolt 204 is provided on the adjusting ring 2, one end of the positioning bolt 204 passes through the adjusting ring 2, and the other end is provided with a nut. The positioning bolt 204 abuts and corresponds with the outer tube 101. The positioning bolt 204 can be used to limit and fix the adjusting ring 2 to prevent the limiting ring from reversing under the pressure of the tunnel top, causing the support rod 1 to lose its supporting function.

[0031] Furthermore, an auxiliary block 203 is fixedly provided on the outer wall of the adjusting ring 2; the auxiliary block 203 cooperates with an external rotating handle, the rotating handle is inserted into the auxiliary block 203, and the adjusting ring 2 is rotated by the rotating handle, making the rotating of the adjusting ring 2 more labor-saving.

[0032] like Figure 4 , Figure 6 The cam 303 is a substantially parallelogram of the cam 304, and the cam 304 is a substantially parallelogram of the cam 304. The cam 303 is a substantially parallelogram of the cam 304, and the cam 304 is a substantially parallelogram of the cam 304. The cam 303 is a substantially parallelogram of the cam 304, and the cam 304 is a substantially parallelogram of the cam 304.

[0033] Furthermore, an adjusting bolt 304 is provided outside the adjusting ring 303 of the adjusting rod, and the adjusting bolt 304 corresponds to the adjusting outer tube 301. The adjusting bolt 304 can limit and fix the adjusting ring 303 of the adjusting rod to prevent the limiting ring from reversing under the pressure of the movable plate 6, which causes the adjusting rod 3 to shrink and lose its supporting effect; the extension and retraction of the adjusting rod 3 can adjust the position of the movable plate 6, and at the same time make the movable connecting shaft assembly connecting the movable plate 6 and the support plate 4 rotate around the movable connecting shaft; when the adjusting rod 3 is extended, the movable plate 6 can be made as close to the top of the tunnel as possible to facilitate the support of the tunnel.

[0034] Furthermore, an adjusting rod auxiliary block 305 is fixedly provided on the outer wall of the adjusting rod adjusting ring 303; by providing the adjusting rod auxiliary block 305, in conjunction with an external rotating handle, the rotating handle is inserted into the adjusting rod auxiliary block 305, and the adjusting rod adjusting ring 303 is driven to rotate by the rotating handle.

[0035] Furthermore, a T-shaped mounting groove 9 is provided at the lower edge of the collecting port 7, an opening is provided at one end of the mounting groove 9, a positioning frame 10 is provided in a sliding connection with the mounting groove 9, and a collecting net 8 is provided on the positioning frame 10; through the cooperation of the positioning frame 10 and the mounting groove 9, the collecting net 8 can be conveniently installed under the collecting port 7, and when a large amount of gravel is collected in the collecting net 8, the positioning frame 10 can be removed at any time to replace the collecting net 8.

[0036] Furthermore, the movable plate 6 is recessed from both sides toward the center to form a guide groove 601, and the end of the guide groove 601 is connected to the collecting port 7. By setting the guide groove 601, it is convenient to limit and guide the fallen stones so that the broken stones can fall into the collecting net 8.

[0037] Working principle:

[0038] When in use, place the device in a suitable position, turn the auxiliary block 203 to rotate the adjusting ring 2, and use the cooperation of the rotating thread and the adjusting thread 103 to gradually extend the inner rod 102 out of the outer tube 101 until the support plate 4 is against the top position of the tunnel. If there is a certain collapse at the top of the tunnel and it is necessary to push up the collapsed part of the top, insert the rotating handle on the auxiliary block 203, and use the rotating handle to further drive the adjusting ring 2 to rotate, so that the inner rod 102 continues to extend upward to overcome the gravity of the collapsed part, until the collapsed part is pushed to a suitable position, and the adjusting ring 2 is limited and fixed by the positioning bolt 204 to prevent the limiting ring from reversing under the pressure of the tunnel top, which causes the support rod 1 to shrink and lose its support. Supporting role; at the same time, rotate the adjusting rod auxiliary block 305 to rotate the adjusting rod adjusting ring 303, and use the cooperation of the internal thread and the external thread of the adjusting rod 3 to make the adjusting rod 3 gradually extend out of the adjusting outer tube 301 until the movable plate 6 is against the top position of the tunnel. On the one hand, the movable plate 6 is used to expand the effective force-bearing area of ​​the tunnel top, effectively support the tunnel top and prevent tunnel deformation. On the other hand, the movable plate 6 can guide the gravel on the tunnel top, roll the gravel into the collecting net 8, and use the collecting net 8 to collect the gravel to avoid the gravel from hitting the staff; when the device is idle, retract the support rod 1 and the adjustment component, so that the support plate 4 and the movable plate 6 are retracted to save space for convenient storage.

[0039] The movable connecting shaft and the movable connecting shaft assembly mentioned in this specification are common technologies in the prior art.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel anti-deformation emergency support device, characterized in that: The invention comprises a support rod (1), a support plate (4), a bottom plate (5), a movable plate (6) and a collecting net (8), wherein the support rod (1) is arranged vertically and has an adjustable length, the support plate (4) and the bottom plate (5) are respectively fixed at the top end and the bottom end of the support rod (1), there are a plurality of movable plates (6), which are respectively mounted on the edge of the support plate (4) through movable connecting shafts, the movable plate (6) is provided with a collecting port (7), and the collecting net (8) is arranged at the collecting port (7), and an adjusting component is arranged between the support rod (1) and the movable plate (6), one end of the adjusting component is connected to the upper part of the support rod (1), and the other end is connected to the movable plate (6).

2. The tunnel anti-deformation emergency support device according to claim 1, characterized in that: The support rod (1) comprises an outer tube (101) fixedly connected to the base plate (5), and an inner rod (102) fixedly connected to the support plate (4), wherein the inner rod (102) is provided with an adjustment thread (103).

3. The tunnel anti-deformation emergency support device according to claim 2, characterized in that: The support rod (1) is provided with an adjustment ring (2), a connection groove (201) is provided in the adjustment ring (2), a connection bearing (202) movably connected to the outer wall of the outer tube (101) is provided in the connection groove (201), and a rotating thread corresponding to the adjustment thread (103) is provided on the inner wall of the adjustment ring (2).

4. The tunnel anti-deformation emergency support device according to claim 3, characterized in that: The adjusting ring (2) is provided with a positioning bolt (204), one end of the positioning bolt (204) passes through the adjusting ring (2), and the other end is provided with a nut, and the positioning bolt (204) abuts and corresponds to the outer tube (101).

5. The tunnel anti-deformation emergency support device according to claim 4, characterized in that: An auxiliary block (203) is fixedly arranged on the outer wall of the adjustment ring (2).

6. The tunnel anti-deformation emergency support device according to claim 1, characterized in that: The adjustment assembly comprises an adjustment rod (3), an adjustment outer tube (301), and an adjustment rod adjustment ring (303); an outer wall of the adjustment rod (3) is provided with an external thread; two ends of the adjustment rod (3) and the adjustment outer tube (301) are movably connected to the movable plate (6) and the support rod (1) via a movable connecting shaft assembly; a groove is provided in the adjustment rod adjustment ring (303); an adjustment bearing (302) movably connected to the outer wall of the adjustment outer tube (301) is provided on the inner wall of the groove; an opening is provided at the center of the top end of the adjustment rod adjustment ring (303); the adjustment rod (3) passes through the top end opening of the adjustment rod adjustment ring (303); and an inner wall of the adjustment rod adjustment ring (303) is provided with an internal thread meshing with the external thread of the adjustment rod (3).

7. The tunnel anti-deformation emergency support device according to claim 6, characterized in that An adjusting bolt (304) is disposed outside the adjusting rod adjusting ring (303).

8. The tunnel anti-deformation emergency support device according to claim 7, characterized in that An adjusting rod auxiliary block (305) is fixedly provided on the outer wall of the adjusting rod adjusting ring (303).

9. The tunnel anti-deformation emergency support device according to claim 1, characterized in that: A T-shaped mounting groove (9) is provided at the lower edge of the collecting port (7), one end of the mounting groove (9) is provided with an opening, a positioning frame (10) is slidably connected to the mounting groove (9), and a collecting net (8) is provided on the positioning frame (10).

10. The tunnel anti-deformation emergency support device according to claim 1, characterized in that: The movable plate (6) is recessed from both sides toward the center to form a guide groove (601), and the end of the guide groove (601) is connected to the collection port (7).

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