Tunnel waterstop installation auxiliary tool

Abstract

The application belongs to the technical field of tunnel construction and processing, in particular to a tunnel water stop belt installation auxiliary tool, which comprises a cloth hanging trolley and a clamping device; a steel arch is fixedly installed between the cloth hanging trolley and a tunnel rock surface, and the steel arch is fixed through a connecting plate and bolts; a plurality of reinforcing steel pipes are fixedly installed between the steel arch and the cloth hanging trolley; the plurality of reinforcing steel pipes are arranged in a circumferential array on the annular surface of the steel arch; a winch is started to slowly pull the water stop belt along the preset track of the steel arch, i.e. along the supporting roller to rise, and finally to be fully laid on the outer surface of the steel arch; it should be noted that the speed should not be too fast during the pulling process to prevent the water stop belt from being excessively rubbed with the cloth hanging trolley or a component of the trolley from being hung on the water stop belt, which results in the water stop belt being unable to move and being pulled and damaged; the auxiliary tool can install the water stop belt with an ultra-large weight on the rock surface, and improves the safety of the tunnel during the excavation process.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction and processing, in particular to an auxiliary tool for installing a tunnel waterstop. Background Art

[0002] An excavation trolley is a type of tunnel construction machinery used for secondary concrete lining construction in tunnels. Tunnel excavation and secondary concrete lining are crucial processes in tunnel construction. Using an excavation trolley for tunnel construction can improve the efficiency of tunnel construction workers.

[0003] During the tunnel construction process, it is necessary to fill the anti-seismic hinged joints with waterstops. The embedded waterstop is an important component of the tunnel waterproof structure. It is mainly used for waterproofing measures of tunnel invert arches and secondary lining construction joints. During construction, it must be ensured that the embedded waterstop is located in the middle of the lining thickness.

[0004] Due to the unique shape of the W-shaped waterstop, it cannot be hot-melt welded after being broken, so the installation cannot be interrupted during the installation process. The entire waterstop needs to be installed along the rock surface, and the weight per meter is as high as 50kg. It is heavy and it is more troublesome to pull and install it. Therefore, in order to complete the installation of the W-shaped waterstop, the present invention provides a tunnel waterstop installation auxiliary tooling. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the tunnel waterstop installation auxiliary tooling described in the present invention includes a cloth hanging trolley and a clamping device; a steel arch frame is fixedly installed between the cloth hanging trolley and the tunnel rock surface, and the steel arch frame is fixed by a connecting plate and bolts; a plurality of reinforced steel pipes are fixedly installed between the steel arch frame and the cloth hanging trolley; a plurality of the reinforced steel pipes are arranged in a circumferential array on the annular surface of the steel arch frame; a supporting roller is installed on the annular surface of the steel arch frame; a plurality of the supporting rollers are arranged in a circumferential array on the upper ring surface of the steel arch frame; a winch is fixedly installed on one side of the arch foot of the cloth hanging trolley;

[0007] During work, when installing the W-shaped waterstop for the tunnel, first move the installed trolley to the section pile number position where the W-shaped waterstop is to be installed, and then clamp the end of the W-shaped waterstop through the clamping device, and the staff will place the wire rope of the winch around the steel arch frame, and fix the other end on the surface of the clamping device. At this time, start the winch to slowly pull the waterstop along the preset track of the steel arch frame, that is, rise along the support roller, and finally spread it on the outer surface of the steel arch frame; it should be noted that it is strictly forbidden to pull too fast during the traction process to prevent the waterstop from rubbing too much with the cloth hanging trolley or a component of the trolley from hanging the waterstop, resulting in it being unable to move and being pulled and damaged. This auxiliary tooling can install super-heavy waterstops on the rock surface, thereby improving the safety of the tunnel during excavation.

[0008] Preferably, the clamping device is composed of two steel plates and reinforcing bolts; four slots are provided on the middle side of the surface of the two steel plates, and the reinforcing bolts are threadedly connected to the slots; a lifting ring is installed on the middle side of the outer surface of each steel plate; when installing the waterstop, the waterstop is placed in the middle of the two steel plates, and then the two steel plates are tightened by the reinforcing bolts, and the waterstop is clamped, and then fixed to the surface of the lifting ring by the steel wire rope of the winch, so as to facilitate the winch to pull the steel wire rope and the waterstop, and facilitate the installation of the waterstop.

[0009] Preferably, the support rollers are arranged in a circular array on the outer surface of the steel arch frame; adjacent support rollers are arranged at equal distances; this can facilitate the pulling of the waterstop along the steel arch frame in a circular direction, and can reduce the friction between the waterstop and the steel arch frame, preventing the waterstop from being torn and damaged.

[0010] Preferably, the outer surface of the steel arch frame is rotatably connected to a plurality of rotating screws; a plurality of the rotating screws are arranged in a circumferential array on the outer surface of the steel arch frame; the outer surface of each rotating screw is rotatably connected to a telescopic support column; a threaded groove compatible with the rotating screw is provided inside the telescopic support column; during operation, when the waterstop is spread between the steel arch frame and the pressure surface, the waterstop needs to be fixed on the rock surface, first, the steel pipe is horizontally inserted between the waterstop and the steel arch frame, and then the rotating screw is rotated to drive the telescopic support column to move, and the telescopic support column will push the waterstop to the rock surface, and two short steel pipes are used to support it between the transverse steel pipe and the steel arch frame flange plate, and are respectively welded to the transverse steel pipe and the outer surface of the steel arch frame, and finally the above steps are repeated to gradually fix the waterstop on the rock surface from one end of the steel arch frame to the other end.

[0011] Preferably, the outer surface of each telescopic support column is provided with a symmetrically arranged limit frame; the shape of the limit frame close to the rock surface is V-shaped; the V-shaped limit frame is provided, which can increase the contact area of ​​the telescopic support column when it contacts the rock surface, improve the fixing effect of the water stop belt, and facilitate the subsequent construction of concrete to one side.

[0012] Preferably, a cylindrical groove is provided inside each of the telescopic supports; a compression spring is fixedly connected inside the cylindrical groove of each telescopic support; a pressure plate is fixedly connected to the upper surface of each telescopic support and the compression spring; the diameter of the pressure plate is smaller than the diameter of the cylindrical groove; during operation, when the telescopic support moves toward the side close to the waterstop, the pressure plate on the side of the telescopic support will first contact the waterstop, and the pressure plate will compress the compression spring on its side. When the compression spring is compressed, it will give the pressure plate a certain reaction force to avoid the phenomenon of damage to the surface of the waterstop caused by excessive pressure on the telescopic support, which is conducive to the normal use of the waterstop.

[0013] Preferably, the outer surface of each telescopic support column is provided with a symmetrically arranged rectangular groove; the outer surface of the pressure plate is fixedly connected to the limiting column; the inner wall of the rectangular groove is fixedly connected to a cross bar; the outer surface of the cross bar is rotatably connected to the limiting seat; the side of the limit seat away from the cross bar is connected to the outer surface of the limit frame; the length of the limit seat is less than the length of the rectangular groove; the limit seat is arranged below the limit column; during operation, when the pressure plate inside the telescopic support column is pressed and moved, the pressure plate will simultaneously drive the limit column to move toward the side close to the limit seat, and then the limit column and the limit seat contact each other, so that the limit seat rotates at a certain angle on the outer surface of the cross bar, and the limit seat will drive the limit frame to rotate, so that the limit frame is tightly pressed against the outer surface of the water stop, thereby improving the installation and fixing effect of the water stop, and ensuring that the limit frame is always in a compressed state.

[0014] Preferably, the side of the limit frame close to the water stop is rotatably connected to a roller; the surface of the limit frame is provided with a rotating shaft adapted to the roller; the number of rollers on the outer surface of a single limit frame is two;

[0015] When the limit frame and the waterstop are in contact with each other, the roller on one side of the limit frame will also be in contact with the waterstop, and under the action of pressure, the roller will roll with a certain amplitude. This roller can smooth the waterstop to a certain extent, making some wrinkled waterstops flat, thereby facilitating the subsequent concrete construction and allowing the concrete to fit more completely with the waterstop.

[0016] Preferably, the length of the limit column is greater than that of the limit seat, which can facilitate the limit column to press tightly against the limit seat; the inner wall of the telescopic support column is provided with a sliding groove adapted to the limit column, which can facilitate the limit column to slide inside the telescopic support column.

[0017] Preferably, a conical piece is fixedly connected to the outer surface of the limit frame; a plurality of the conical pieces are provided, and are irregularly designed on the outer surface of the limit frame; the conical pieces are provided, and when the concrete is placed between the rock surface and the water stop, the conical pieces can have a certain disruptive effect on the concrete, so that the concrete is filled in multiple directions between the rock surface and the water stop, and at the same time, when the concrete solidifies, the conical pieces can also increase the strength between the concrete, thereby bringing safety to the excavation of the tunnel.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The tunnel waterstop installation auxiliary tooling described in the present invention slowly pulls the waterstop along the preset track of the steel arch frame through a winch, that is, rises along the support roller, and finally spreads it on the outer surface of the steel arch frame; it should be noted that it is strictly forbidden to pull too fast during the traction process to prevent the waterstop from having excessive friction with the cloth hanging trolley or a component of the trolley from hanging the waterstop, resulting in it being unable to move and being pulled and damaged. This auxiliary tooling can install super-heavy waterstops on the rock surface and avoids breaking the waterstop. The entire waterstop can be slowly installed along the rock surface, which is more convenient to use and improves the safety of the tunnel during excavation.

[0020] 2. The tunnel waterstop installation auxiliary tooling described in the present invention is achieved by horizontally inserting the steel pipe between the waterstop and the steel arch frame, and then rotating the rotating screw to drive the telescopic support column to move. The telescopic support column will push the waterstop to the rock surface, and use two short steel pipes to support it between the horizontal steel pipe and the steel arch frame flange plate, and weld them to the outer surface of the horizontal steel pipe and the steel arch frame respectively. Finally, repeat the above steps to gradually fix the waterstop on the rock surface from one end of the steel arch frame to the other end, which is more convenient to operate.

[0021] 3. The tunnel waterstop installation auxiliary tooling described in the present invention, when the pressure plate inside the telescopic support column moves under pressure, the pressure plate will simultaneously drive the limit column to move toward the side close to the limit seat, and then the limit column and the limit seat will contact each other, so that the limit seat will rotate at a certain angle on the outer surface of the cross bar, and the limit seat will drive the limit frame to rotate, so that the limit frame is tightly pressed against the outer surface of the waterstop, thereby improving the installation and fixing effect of the waterstop and ensuring that the limit frame is always in a compressed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a cross-sectional view of the cloth hanging trolley and the steel arch frame of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the clamping device of the present invention;

[0025] Figure 3 This is a schematic diagram of the telescopic support structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the telescopic support column and the water stop when they are pressed against each other in the present invention;

[0027] Figure 5 It is a schematic diagram of the limit frame structure of the present invention;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the limiting frame in the present invention;

[0029] Figure 7 In the present invention Figure 6 A magnified view of the structure at point A;

[0030] Figure 8 It is a schematic diagram of the conical piece structure of the second embodiment of the present invention.

[0031] In the figure: 1. Cloth hanging trolley; 2. Steel arch frame; 3. Reinforced steel pipe; 4. Support roller; 5. Winch; 6. Clamping device; 61. Steel plate; 62. Reinforcement bolt; 7. Rotating screw; 8. Telescopic support column; 9. Limiting frame; 10. Cylindrical groove; 11. Compression spring; 12. Pressure plate; 13. Rectangular groove; 14. Limiting column; 15. Cross bar; 151. Roller; 16. Limiting seat; 901. Conical piece. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] Example 1

[0034] like Figures 1 to 2 As shown, an auxiliary tool for installing a tunnel waterstop according to an embodiment of the present invention comprises a cloth hanging trolley 1 and a clamping device 6; a steel arch frame 2 is fixedly installed between the cloth hanging trolley 1 and the tunnel rock surface, and the steel arch frame 2 is fixed by a connecting plate and bolts; a plurality of reinforcing steel pipes 3 are fixedly installed between the steel arch frame 2 and the cloth hanging trolley 1; a plurality of the reinforcing steel pipes 3 are arranged in a circular array on the annular surface of the steel arch frame 2; a supporting roller 4 is installed on the annular surface of the steel arch frame 2; a plurality of the supporting rollers 4 are arranged in a circumferential array on the upper ring surface of the steel arch frame 2; a winch 5 is fixedly installed on one side of the arch foot of the cloth hanging trolley 1;

[0035] In the prior art, due to the unique shape of the W-shaped waterstop, it cannot be hot-melt welded after being disconnected, so it cannot be installed discontinuously during the installation process. The entire waterstop needs to be installed along the rock surface, and the weight per meter is as high as 50kg. Its weight is large, and it is more troublesome to pull and install it. In the specific use of the embodiment of the present invention, when installing the W-shaped waterstop for the tunnel, the installed trolley is first moved to the section pile number position where the W-shaped waterstop is installed, and then the end of the W-shaped waterstop is clamped by the clamping device 6, and the staff places the wire rope of the winch 5 around the steel arch frame 2, and the other end is fixed to the surface of the clamping device 6. At this time, the winch 5 is started, so that the winch 5 slowly pulls the waterstop along the preset track of the steel arch frame 2, that is, rises along the support roller 4, and finally spreads it on the outer surface of the steel arch frame 2; it should be noted that it is strictly forbidden to speed too fast during the traction process to prevent the waterstop from rubbing too much with the cloth hanging trolley 1 or a component of the trolley from hanging the waterstop, resulting in it being unable to move and being pulled and damaged.

[0036] The auxiliary tooling of the embodiment of the present invention can install an extremely heavy waterstop on the rock surface and avoid breaking the waterstop. The entire waterstop can be slowly installed along the rock surface, which is more convenient to use and improves the safety of the tunnel during excavation.

[0037] The clamping device 6 is composed of two steel plates 61 and reinforcement bolts 62; four slots are opened on the middle side of the surface of the two steel plates 61, and the reinforcement bolts 62 are threadedly connected to the slots; a lifting ring is installed on the middle side of the outer surface of each steel plate 61;

[0038] When installing the waterstop, place the waterstop between the two steel plates 61, then tighten the two steel plates 61 with the reinforcement bolts 62, clamp the waterstop, and then fix it to the surface of the lifting ring through the wire rope of the winch 5, so that the winch 5 can pull the wire rope and the waterstop, thereby facilitating the installation of the waterstop.

[0039] The supporting rollers 4 are arranged in a circular array on the outer surface of the steel arch frame 2; adjacent supporting rollers 4 are arranged at equal distances; they can facilitate the pulling of the waterstop along the steel arch frame 2 in a circular direction, and can reduce the friction between the waterstop and the steel arch frame 2, preventing the waterstop from being torn and damaged.

[0040] like Figures 3 to 7 As shown, the outer surface of the steel arch 2 is rotatably connected to a plurality of rotating screws 7; the plurality of rotating screws 7 are arranged in a circumferential array on the outer surface of the steel arch 2; the outer surface of each rotating screw 7 is rotatably connected to a telescopic support post 8; the interior of the telescopic support post 8 is provided with a threaded groove adapted to the rotating screw 7;

[0041] During operation, when the waterstop is spread between the steel arch frame 2 and the pressure surface, the waterstop needs to be fixed on the rock surface. First, the steel pipe is inserted horizontally between the waterstop and the steel arch frame 2. Then, by rotating the rotating screw 7, the rotating screw 7 drives the telescopic support column 8 to move. The telescopic support column 8 will push the waterstop to the rock surface, and use two short steel pipes to support it between the horizontal steel pipe and the flange plate of the steel arch frame 2, and weld them to the outer surface of the horizontal steel pipe and the steel arch frame 2 respectively. Finally, repeat the above steps, and gradually fix the waterstop on the rock surface from one end of the steel arch frame 2 to the other end. Figure 3 and Figure 4 shown.

[0042] The outer surface of each telescopic support column 8 is provided with a symmetrically arranged limit frame 9; the limit frame 9 is V-shaped close to the rock surface; the V-shaped limit frame 9 is provided, which can increase the contact area of ​​the telescopic support column 8 when it contacts the rock surface, improve the fixing effect of the water stop belt, and facilitate the subsequent construction of concrete to one side.

[0043] A cylindrical groove 10 is provided inside each of the telescopic supports 8; a compression spring 11 is fixedly connected to the inside of each of the telescopic supports 8 and located in the cylindrical groove 10; a pressure plate 12 is fixedly connected to the upper surface of each of the telescopic supports 8 and located on the compression spring 11; the diameter of the pressure plate 12 is smaller than the diameter of the cylindrical groove 10; during operation, when the telescopic support 8 moves toward the side close to the waterstop, the pressure plate 12 on the side of the telescopic support 8 will first contact the waterstop, and the pressure plate 12 will compress the compression spring 11 on its side. The compression spring 11 is compressed and will give the pressure plate 12 a certain reaction force to avoid the phenomenon of excessive pressure on the telescopic support 8 causing damage to the surface of the waterstop, which is conducive to the normal use of the waterstop.

[0044] The outer surface of each telescopic support column 8 is provided with a symmetrically arranged rectangular groove 13; the outer surface of the pressure plate 12 is fixedly connected to the limiting column 14; the inner wall of the rectangular groove 13 is fixedly connected to the cross bar 15; the outer surface of the cross bar 15 is rotatably connected to the limiting seat 16; the side of the limiting seat 16 away from the cross bar 15 is connected to the outer surface of the limiting frame 9; the length of the limiting seat 16 is less than the length of the rectangular groove 13; the limiting seat 16 is arranged below the limiting column 14;

[0045] During operation, when the pressure plate 12 inside the telescopic support column 8 is pressed and moved, the pressure plate 12 will simultaneously drive the limit column 14 to move to the side close to the limit seat 16, and then the limit column 14 and the limit seat 16 will contact each other, so that the limit seat 16 will rotate at a certain angle on the outer surface of the cross bar 15, and the limit seat 16 will drive the limit frame 9 to rotate, so that the limit frame 9 is tightly pressed against the outer surface of the water stop, which improves the installation and fixing effect of the water stop and can ensure that the limit frame 9 is always in a compressed state.

[0046] The side of the limit frame 9 close to the water stop is rotatably connected to a roller 151; the surface of the limit frame 9 is provided with a rotating shaft adapted to the roller 151; the number of rollers 151 on the outer surface of a single limit frame 9 is two;

[0047] When the limit frame 9 and the waterstop are in contact with each other, the roller 151 on one side of the limit frame 9 will also be in contact with the waterstop, and under the action of pressure, the roller 151 will roll with a certain amplitude. The roller 151 can smooth the waterstop to a certain extent, making some wrinkled waterstops smooth, thereby facilitating the subsequent concrete construction and allowing the concrete to fit more completely with the waterstop.

[0048] The length of the limiting column 14 is greater than that of the limiting seat 16, which can facilitate the limiting column 14 to press tightly against the limiting seat 16; the inner wall of the telescopic support column 8 is provided with a sliding groove adapted to the limiting column 14, which can facilitate the limiting column 14 to slide inside the telescopic support column 8.

[0049] Example 2

[0050] like Figure 8 As shown, compared with Example 1, another implementation of the present invention is: the outer surface of the limit frame 9 is fixedly connected with a conical piece 901; the conical piece 901 is provided in plurality and is irregularly designed on the outer surface of the limit frame 9; the conical piece 901 is provided, and when the concrete is placed between the rock surface and the water stop, the conical piece 901 can have a certain disruptive effect on the concrete, so that the concrete is filled in multiple directions between the rock surface and the water stop, and at the same time, when the concrete solidifies, the conical piece 901 can also increase the strength between the concrete, thereby bringing safety to the excavation of the tunnel.

[0051] During work, when installing the W-shaped waterstop for the tunnel, first move the installed trolley to the section pile number position where the W-shaped waterstop is to be installed, then clamp the end of the W-shaped waterstop through the clamping device 6, and the staff puts the steel wire rope of the winch 5 around the steel arch frame 2, and at the same time fixes the other end to the surface of the clamping device 6. At this time, start the winch 5, so that the winch 5 slowly pulls the waterstop along the preset track of the steel arch frame 2, that is, rises along the support roller 4, and finally spreads it on the outer surface of the steel arch frame 2; It should be noted that it is strictly forbidden to speed too fast during the traction process to prevent the waterstop from rubbing too much with the cloth hanging trolley 1 or a component of the trolley from hanging the waterstop, resulting in it being unable to move and causing pulling damage;

[0052] This auxiliary tooling can install the overweight waterstop on the rock surface, and solves the problem of being unable to hot-melt weld due to the disconnection of the waterstop, thereby improving the safety of the tunnel during excavation; when installing the waterstop, the waterstop is placed between the two steel plates 61, and then the two steel plates 61 are tightened by the reinforcing bolts 62, and the waterstop is clamped, and then the steel wire rope of the winch 5 is fixed to the surface of the lifting ring, so that the winch 5 is convenient for pulling the steel wire rope and the waterstop, which is convenient for the installation of the waterstop; the adjacent supporting rollers 4 are arranged at equal distances; it can facilitate the pulling of the waterstop along the steel arch frame 2 in the circular direction, and can reduce the friction between the waterstop and the steel arch frame 2, and prevent the waterstop from being torn and damaged;

[0053] When the waterstop is fully paved between the steel arch frame 2 and the pressure surface, it is necessary to fix the waterstop on the rock surface. First, the steel pipe is inserted horizontally between the waterstop and the steel arch frame 2, and then the rotating screw 7 is rotated to drive the telescopic support column 8 to move. The telescopic support column 8 will push the waterstop to the rock surface, and two short steel pipes are used to support them between the transverse steel pipe and the flange plate of the steel arch frame 2, and are welded to the outer surface of the transverse steel pipe and the steel arch frame 2 respectively. Finally, repeat the above steps, and gradually fix the waterstop on the rock surface from one end of the steel arch frame 2 to the other end; a V-shaped limit frame 9 is provided, which can increase the contact area of ​​the telescopic support column 8 when it contacts the rock surface, thereby improving the fixing effect of the waterstop and facilitating the subsequent construction of concrete on one side;

[0054] When the extension post 8 moves toward one side of the waterstop, the pressure plate 12 on the side of the extension post 8 will first contact the waterstop, and the pressure plate 12 will compress the compression spring 11 on one side. The compression spring 11 is compressed, which will give the pressure plate 12 a certain reaction force to avoid the damage to the surface of the waterstop caused by excessive pressure on the extension post 8, which is beneficial to the normal use of the waterstop; when the pressure plate 12 inside the extension post 8 is pressed and moved, the pressure plate 12 will simultaneously drive the limit column 14 to move toward the side close to the limit seat 16, and then the limit column 14 and the limit seat 16 contact each other, so that the limit seat 16 rotates at a certain angle on the outer surface of the cross bar 15, and the limit seat 16 will drive the limit frame 9 to rotate, so that the limit frame 9 is tightly pressed against the outer surface of the waterstop, thereby improving the installation and fixing effect of the waterstop and ensuring that the limit frame 9 is always in a compressed state;

[0055] When the limit frame 9 contacts the waterstop, the roller 151 on one side of the limit frame 9 will also contact the waterstop, and under the action of pressure, the roller 151 will roll with a certain amplitude. The roller 151 can smooth the waterstop to a certain extent, making some wrinkled waterstops smooth, thereby facilitating the subsequent concrete construction and allowing the concrete to fit more completely with the waterstop; the inner wall of the telescopic support column 8 is provided with a sliding groove adapted to the limit column 14, which can facilitate the sliding of the limit column 14 inside the telescopic support column 8.

[0056] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel waterstop installation auxiliary tool, comprising a cloth hanging trolley (1) and a clamping device (6); characterized in that: A steel arch frame (2) is fixedly installed between the cloth hanging trolley (1) and the tunnel rock surface, and a plurality of reinforced steel pipes (3) are fixedly installed between the steel arch frame (2) and the cloth hanging trolley (1); the plurality of reinforced steel pipes (3) are arranged in a circumferential array on the annular surface of the steel arch frame (2); a supporting roller (4) is installed on the annular surface of the steel arch frame (2); the plurality of supporting rollers (4) are arranged in a circumferential array on the upper ring surface of the steel arch frame (2); a winch (5) is fixedly installed on one side of the arch foot of the cloth hanging trolley (1); The outer surface of the steel arch frame (2) is rotatably connected to a plurality of rotating screws (7); the plurality of rotating screws (7) are arranged in a circumferential array on the outer surface of the steel arch frame (2); the outer surface of each rotating screw (7) is rotatably connected to a telescopic support column (8); the interior of the telescopic support column (8) is provided with a thread groove adapted to the rotating screw (7); The outer surface of each telescopic support column (8) is provided with a symmetrically arranged limit frame (9); the limit frame (9) is V-shaped near the rock surface; A cylindrical groove (10) is provided inside each telescopic support column (8); a compression spring (11) is fixedly connected inside each telescopic support column (8) and located in the cylindrical groove (10); a pressure plate (12) is fixedly connected to the upper surface of each telescopic support column (8) and located on the compression spring (11); the diameter of the pressure plate (12) is smaller than the diameter of the cylindrical groove (10); The outer surface of each telescopic support column (8) is provided with a symmetrically arranged rectangular groove (13); the outer surface of the pressure plate (12) is fixedly connected to the limiting column (14); the inner wall of the rectangular groove (13) is fixedly connected to the cross bar (15); the outer surface of the cross bar (15) is rotatably connected to the limiting seat (16); the side of the limiting seat (16) away from the cross bar (15) is connected to the outer surface of the limiting frame (9); the length of the limiting seat (16) is less than the length of the rectangular groove (13); and the limiting seat (16) is arranged below the limiting column (14).

2. The tunnel waterstop installation auxiliary tool according to claim 1, characterized in that: The clamping device (6) is composed of two steel plates (61) and reinforcing bolts (62); four slots are provided on the middle sides of the surfaces of the two steel plates (61), and the reinforcing bolts (62) are threadedly connected to the slots; and a lifting ring is installed on the middle side of the outer surface of each steel plate (61).

3. The tunnel waterstop installation auxiliary tool according to claim 1, characterized in that: The supporting rollers (4) are arranged in a circumferential array on the outer surface of the steel arch frame (2); adjacent supporting rollers (4) are arranged at equal distances.

4. The auxiliary tool for installing a tunnel waterstop according to claim 1, characterized in that: The side of the limiting frame (9) close to the water stop is rotatably connected to a roller (151); a rotating shaft adapted to the roller (151) is provided on the surface of the limiting frame (9); and the number of rollers (151) on the outer surface of a single limiting frame (9) is two.

5. The tunnel waterstop installation auxiliary tool according to claim 1, characterized in that: The length of the limiting column (14) is greater than the length of the limiting seat (16); and the inner wall of the telescopic support column (8) is provided with a sliding groove adapted to the limiting column (14).

6. The tunnel waterstop installation auxiliary tool according to claim 1, characterized in that: The outer surface of the limiting frame (9) is fixedly connected with a conical piece (901); a plurality of the conical pieces (901) are provided and are irregularly designed on the outer surface of the limiting frame (9).

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