Temporary supporting device for tunnel steel arch

Abstract

The utility model relates to the technical field of tunnel construction engineering, and discloses a tunnel steel arch temporary supporting device which comprises a mounting plate, mounting holes are formed in the four corners of the interior of the mounting plate, a first sliding table is fixedly connected to the upper portion of the mounting plate, and a first threaded rod is rotationally connected to the interior of the first sliding table; the front portion of the first threaded rod is fixedly connected with a rotating block. According to the device, a rotating handle is rotated, the rotating handle drives a connecting shaft to rotate, the connecting shaft drives a first bevel gear to rotate, the first bevel gear drives a second bevel gear to rotate, the second bevel gear drives a second threaded rod to rotate, the second threaded rod drives a telescopic rod to move upwards, and the height of the device is adjusted; the supporting plate and the two limiting frames can correspond to the steel arch, then in the moving process of the two limiting frames, the four connecting screws slide in the four moving grooves, and the positions of the two limiting frames are fixed by screwing fixing nuts.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction engineering, in particular to a temporary supporting device for a tunnel steel arch frame. Background Art

[0002] Highway bridge engineering refers to the planning, design, construction, maintenance and repair of structures across waters, valleys and all traffic channels. The 21st century is the century of large-scale development of underground space. Tunnels, as an important direction of underground space, have made great progress. With the continuous improvement of tunnel construction technology, the initial support steel arch frame of the tunnel is manually lifted during the operation. Due to the heavy weight of the steel arch frame, it is extremely laborious to manually adjust the steel arch frame, resulting in high labor intensity and high risk.

[0003] However, conventional tunnel steel arch temporary support devices usually adopt structures such as scaffolding, which are assembled through multiple connectors and support rods. Although such support devices can provide a certain supporting force, the installation and disassembly process is cumbersome, and the stability needs to be improved. Therefore, a tunnel steel arch temporary support device is provided to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a temporary support device for a tunnel steel arch frame, aiming to solve the problems in the prior art that the installation and disassembly processes are cumbersome and the stability needs to be improved.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A temporary support device for a tunnel steel arch frame comprises a mounting plate, mounting holes are provided at the four inner corners of the mounting plate, a first slide is fixedly connected to the upper part of the mounting plate, a threaded rod 1 is rotatably connected to the inner part of the first slide, a swivel block is fixedly connected to the right part of the threaded rod 1, a limiting rod is fixedly provided on the outer part of the threaded rod 1, a sliding seat is threadedly connected to the outer part of the threaded rod 1, a second slide is fixedly connected to the upper part of the sliding seat, a T-shaped sliding block is provided on the inner part of the second slide, a fixing plate is provided on the upper part of the second slide, a T-shaped slot is provided on the inner part of the fixing plate, a connecting plate is fixedly connected to the outer part of the fixing plate, a plug rod is provided on the inner part of the connecting plate, a slot is provided on the inner part of the second slide, and a lifting assembly is provided on the upper part of the fixing plate.

[0007] Through the above technical scheme, when the support pallet is close to the steel arch frame, the position deviation between the support pallet and the steel arch frame is observed. If the deviation is large, the support pallet is lowered and the position of the support device is adjusted. If the deviation is small, the rotating block is rotated, and the rotating block drives the threaded rod to rotate, and the threaded rod drives the sliding seat to move. At the same time, the limit rod slides and limits inside the sliding seat to fine-tune the longitudinal position. By sliding the fixed plate and the T-shaped slider sliding inside the T-slot, the lateral position can be moved. When it moves to the specified position, the rod is inserted into the slot to fix it, so that the support pallet and the steel arch frame are accurately docked, which saves a lot of adjustment and correction time and can improve work efficiency.

[0008] Further, the lifting assembly includes a fixed cylinder, which is fixedly connected to the upper part of the fixed plate, and the internal rotation of the fixed plate is connected to a threaded rod 2, the external lower side of the threaded rod 2 is fixedly connected to a bevel gear 1, the right part of the bevel gear 1 is meshed and connected to the bevel gear 2, the right part of the bevel gear 2 is fixedly connected to a connecting shaft, and the right part of the connecting shaft is fixedly connected to a turning handle, the external upper side of the threaded rod 2 is threadedly connected to a telescopic rod, and the upper part of the telescopic rod is fixedly connected to a supporting pallet, and limit frames are provided on both sides of the interior of the supporting pallet, and the inner side of the limit frame is fixedly connected to a spring, and the spring is fixedly connected to the interior of the supporting pallet, and moving grooves are provided on the front and rear sides of the supporting pallet, and the front and rear sides of the limit frame are fixedly connected to connecting screws, and the external thread of the connecting screw is connected to a fixing nut.

[0009] Through the above technical scheme, by turning the handle, the handle drives the connecting shaft to rotate, the connecting shaft drives bevel gear one to rotate, bevel gear one drives bevel gear two to rotate, bevel gear two drives threaded rod two to rotate, threaded rod two drives the telescopic rod to move upward, and the height of the device is adjusted. By pulling the handle, the two limit frames are pulled outward so that the support plate and the two limit frames can correspond to the steel arch frame. Under the elastic action of the connecting spring, the two limit frames limit the two sides of the steel arch frame. Then, in the process of moving the two limit frames, the four connecting screws slide in the four moving grooves, and the positions of the two limit frames are fixed by tightening the fixing nuts. Finally, the position of the mounting plate is limited by cooperating with the mounting holes of the mounting plate through the anchor bolts.

[0010] Furthermore, a handle is fixedly connected to the outside of the limiting frame.

[0011] Through the above technical solution, the limit frame can be easily pulled by providing a pull handle.

[0012] Furthermore, the limiting rod is slidably connected to both sides of the interior of the sliding seat.

[0013] Through the above technical solution, the sliding seat can be limitedly slid by the limiting rod sliding on both sides of the interior of the sliding seat.

[0014] Furthermore, the insertion rod is slidably connected inside the slot.

[0015] Through the above technical solution, the lateral position can be adjusted and fixed by sliding the insertion rod inside the slot.

[0016] Furthermore, the connecting screw is slidably connected inside the movable groove.

[0017] Through the above technical solution, the connecting screw rod slides inside the movable groove, which can drive the limiting frame to slide inside the supporting plate.

[0018] Furthermore, the T-shaped sliding block is slidably connected inside the T-shaped slot.

[0019] Through the above technical solution, the T-shaped slider slides inside the T-shaped slot, which can drive the fixed plate to slide horizontally.

[0020] Furthermore, the limiting frame is slidably connected to the inside of the supporting plate.

[0021] Through the above technical solution, steel arch frames of different sizes can be supported by sliding the limiting frame inside the supporting plate.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the cooperation among the first slide, threaded rod 1, sliding seat, limit rod, second slide, T-slider, T-slot and insert rod and other structures, when the support plate is close to the steel arch frame, the position deviation between the support plate and the steel arch frame is observed. When the deviation is small, the rotating block is rotated, and the rotating block drives the threaded rod 1 to rotate, and the threaded rod 1 drives the sliding seat to move, so as to fine-tune the longitudinal position. By sliding the fixing plate, the lateral position can be moved. After moving to the specified position, the insert rod is inserted into the slot for fixing, so that the support plate and the steel arch frame are accurately docked, which saves a lot of adjustment and correction time and can improve work efficiency.

[0024] 2. In the utility model, through the cooperation among structures such as the fixed cylinder, threaded rod two, bevel gear one, bevel gear two, telescopic rod, limit frame, support plate and connecting screw, by turning the handle, the handle drives the connecting shaft to rotate, the connecting shaft drives the bevel gear one to rotate, the bevel gear one drives the bevel gear two to rotate, the bevel gear two drives the threaded rod two to rotate, the threaded rod two drives the telescopic rod to move upward to adjust the height of the device, and the two limit frames are pulled outward by pulling the handle so that the support plate and the two limit frames can correspond to the steel arch frame, and then during the movement of the two limit frames, the four connecting screws slide in the four moving grooves, and the positions of the two limit frames are fixed by tightening the fixing nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a temporary support device for a tunnel steel arch proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the first slide of a temporary support device for a tunnel steel arch frame proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the second slide structure of a temporary support device for a tunnel steel arch frame proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of a fixed cylinder of a temporary support device for a tunnel steel arch frame proposed by the utility model;

[0029] Figure 5 A schematic diagram of a supporting plate structure of a temporary supporting device for a tunnel steel arch frame proposed by the utility model;

[0030] Figure 6 The utility model provides a schematic diagram of the internal structure of a support plate of a temporary support device for a tunnel steel arch frame.

[0031] Legend:

[0032] 1. Mounting plate; 2. Mounting hole; 3. First slide; 4. Turn block; 5. Threaded rod 1; 6. Limit rod; 7. Sliding seat; 8. Second slide; 9. T-slot; 10. T-sliding block; 11. Fixed plate; 12. Connecting plate; 13. Insert rod; 14. Slot; 15. Fixed cylinder; 16. Telescopic rod; 17. Turn handle; 18. Connecting shaft; 19. Bevel gear 1; 20. Bevel gear 2; 21. Threaded rod 2; 22. Support plate; 23. Connecting screw; 24. Fixing nut; 25. Spring; 26. Moving slot; 27. Pull handle; 28. Limiting frame. DETAILED DESCRIPTION

[0033] 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 in 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.

[0034] Reference Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the utility model:

[0035] A temporary support device for a tunnel steel arch frame, comprising a mounting plate 1, mounting holes 2 are provided at the four inner corners of the mounting plate 1, a first slide 3 is fixedly connected to the upper part of the mounting plate 1, a threaded rod 5 is rotatably connected to the inner part of the first slide 3, a rotating block 4 is fixedly connected to the right part of the threaded rod 5, a limiting rod 6 is fixedly provided on the outer part of the threaded rod 5, a sliding seat 7 is threadedly connected to the outer part of the threaded rod 5, a second slide 8 is fixedly connected to the upper part of the sliding seat 7, a T-shaped sliding block 10 is provided inside the second slide 8, a fixing plate 11 is provided on the upper part of the second slide 8, a T-shaped slot 9 is provided inside the fixing plate 11, a connecting plate 12 is fixedly connected to the outer part of the fixing plate 11, a plugging rod 13 is provided inside the connecting plate 12, a slot 14 is provided inside the second slide 8, and a lifting assembly is provided on the upper part of the fixing plate 11;

[0036] The lifting assembly includes a fixed cylinder 15, which is fixedly connected to the upper part of the fixed plate 11. The fixed plate 11 is internally rotatably connected with a threaded rod 21, and the outer lower side of the threaded rod 21 is fixedly connected with a bevel gear 19, and the right part of the bevel gear 19 is meshedly connected with a bevel gear 20, and the right part of the bevel gear 20 is fixedly connected with a connecting shaft 18, and the right part of the connecting shaft 18 is fixedly connected with a turning handle 17, and the outer upper side of the threaded rod 21 is threadedly connected with a telescopic rod 16, and the upper part of the telescopic rod 16 is fixedly connected with a supporting plate 22, and a limiting frame 28 is arranged on both sides of the inner part of the supporting plate 22, and the inner side of the limiting frame 28 is fixedly connected with a spring 25, and the spring 25 is fixedly connected to the inside of the supporting plate 22, and the front and rear sides of the supporting plate 22 are provided with a moving groove 26, and the front and rear sides of the limiting frame 28 are fixedly connected with a connecting screw 23, and the outer side of the connecting screw 23 is threadedly connected with a fixing nut 24, and the outer side of the limiting frame 28 is fixedly connected with a pull handle 27;

[0037] When the support plate 22 is close to the steel arch frame, observe the position deviation between the support plate 22 and the steel arch frame. If the deviation is large, lower the support plate 22 and adjust the position of the support device. If the deviation is small, rotate the rotating block 4, the rotating block 4 drives the threaded rod 5 to rotate, and the threaded rod 5 drives the sliding seat 7 to move. At the same time, the limit rod 6 slides and limits inside the sliding seat 7 to fine-tune the longitudinal position. By sliding the fixing plate 11 and the T-shaped slider 10 sliding inside the T-shaped slot 9, the lateral position can be moved. After moving to the specified position, the insert rod 13 is inserted into the slot 14 to fix it, so that the support plate 22 and the steel arch frame are accurately docked, which saves a lot of adjustment and correction time and can improve work efficiency.

[0038] By turning the handle 17, the handle 17 drives the connecting shaft 18 to rotate, the connecting shaft 18 drives the bevel gear 1 19 to rotate, the bevel gear 1 19 drives the bevel gear 2 20 to rotate, the bevel gear 20 drives the threaded rod 21 to rotate, and the threaded rod 21 drives the telescopic rod 16 to move upward to adjust the height of the device. By pulling the handle 27, the two limit frames 28 are pulled outward so that the support plate 22 and the two limit frames 28 can correspond to the steel arch frame. Under the elastic action of the connecting spring 25, the two limit frames 28 limit the two sides of the steel arch frame. Then, in the process of the movement of the two limit frames 28, the four connecting screws 23 slide in the four moving grooves 26. The positions of the two limit frames 28 are fixed by tightening the fixing nuts 24. Finally, the position of the mounting plate 1 is limited by cooperating with the mounting holes 2 of the mounting plate 1 through the anchor bolts.

[0039] Reference Figure 4 , Figure 5 and Figure 6 The limit rod 6 is slidably connected to both sides of the inner side of the sliding seat 7, the insertion rod 13 is slidably connected to the inner side of the slot 14, the connecting screw 23 is slidably connected to the inner side of the moving slot 26, the T-shaped slider 10 is slidably connected to the inner side of the T-shaped slot 9, and the limit frame 28 is slidably connected to the inner side of the supporting plate 22;

[0040] By sliding the limit rod 6 on both sides of the sliding seat 7, the sliding seat 7 can be limited and slid. By sliding the insertion rod 13 in the slot 14, the lateral position can be adjusted and fixed. By sliding the connecting screw 23 in the movable groove 26, the limit frame 28 can be driven to slide in the support pallet 22. By sliding the T-shaped slider 10 in the T-shaped slot 9, the fixed plate 11 can be driven to slide laterally. By sliding the limit frame 28 in the support pallet 22, steel arch frames of different sizes can be supported.

[0041] Working principle: When using this device, by turning the handle 17, the handle 17 drives the connecting shaft 18 to rotate, the connecting shaft 18 drives the bevel gear 19 to rotate, the bevel gear 19 drives the bevel gear 20 to rotate, the bevel gear 20 drives the threaded rod 21 to rotate, the threaded rod 21 drives the telescopic rod 16 to move upward, and the height of the device is adjusted. When the support plate 22 is close to the steel arch frame, observe the position deviation between the support plate 22 and the steel arch frame. If the deviation is large, lower the support plate 22 and adjust the position of the support device. If the deviation is small, turn the turn block 4, the turn block 4 drives the threaded rod 15 to rotate, the threaded rod 15 drives the sliding seat 7 to move, and at the same time, the limit rod 6 slides and limits inside the sliding seat 7 to fine-tune the longitudinal position, and the T-shaped slider 10 is in the T-slot 9 can slide inside and move the lateral position. When it moves to the specified position, the rod 13 is inserted into the slot 14 to fix it, so that the support plate 22 and the steel arch frame can be accurately docked, which saves a lot of adjustment and correction time and can improve work efficiency. Then the handle 27 pulls the two limit frames 28 outward so that the support plate 22 and the two limit frames 28 can correspond to the steel arch frame. Under the elastic action of the connecting spring 25, the two limit frames 28 limit the two sides of the steel arch frame. Then, during the movement of the two limit frames 28, the four connecting screws 23 slide in the four moving grooves 26. The positions of the two limit frames 28 are fixed by tightening the fixing nuts 24. Finally, the position of the mounting plate 1 is limited by the anchor bolts and the mounting holes 2 of the mounting plate 1.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A temporary support device for a tunnel steel arch, comprising a mounting plate (1), characterized in that: The four corners of the mounting plate (1) are provided with mounting holes (2); the upper part of the mounting plate (1) is fixedly connected to a first slide (3); the first slide (3) is rotatably connected to a threaded rod (5); the right part of the threaded rod (5) is fixedly connected to a rotating block (4); the outer part of the threaded rod (5) is fixedly provided with a limit rod (6); the outer part of the threaded rod (5) is threadedly connected to a sliding seat (7); the upper part of the sliding seat (7) is fixedly connected to a second slide (8); the inner part of the second slide (8) is provided with a T-shaped sliding block (10); the upper part of the second slide (8) is provided with a fixing plate (11); the inner part of the fixing plate (11) is provided with a T-shaped slot (9); the outer part of the fixing plate (11) is fixedly connected to a connecting plate (12); the inner part of the connecting plate (12) is provided with an inserting rod (13); the inner part of the second slide (8) is provided with a slot (14); and the upper part of the fixing plate (11) is provided with a lifting assembly.

2. A tunnel steel arch temporary support device according to claim 1, characterized in that: The lifting assembly comprises a fixed cylinder (15), wherein the fixed cylinder (15) is fixedly connected to the upper part of the fixed plate (11), the interior of the fixed plate (11) is rotatably connected to a second threaded rod (21), the outer lower side of the second threaded rod (21) is fixedly connected to a first bevel gear (19), the right part of the first bevel gear (19) is meshingly connected to a second bevel gear (20), the right part of the second bevel gear (20) is fixedly connected to a connecting shaft (18), the right part of the connecting shaft (18) is fixedly connected to a turning handle (17), the outer upper side of the second threaded rod (21) is threadedly connected to a first bevel gear (19), and the second bevel gear (20) is meshingly connected to a second bevel gear (20). A telescopic rod (16) is connected, the upper part of the telescopic rod (16) is fixedly connected to a support plate (22), both sides of the interior of the support plate (22) are provided with limit frames (28), the inner side of the limit frame (28) is fixedly connected to a spring (25), the spring (25) is fixedly connected to the interior of the support plate (22), the front and rear sides of the support plate (22) are provided with movable grooves (26), the front and rear sides of the limit frame (28) are fixedly connected to connecting screws (23), and the external thread of the connecting screws (23) is connected to a fixing nut (24).

3. A tunnel steel arch temporary support device according to claim 2, characterized in that: The outside of the limiting frame (28) is fixedly connected to a pull handle (27).

4. A tunnel steel arch temporary support device according to claim 1, characterized in that: The limiting rod (6) is slidably connected to both sides of the interior of the sliding seat (7).

5. The temporary support device for a tunnel steel arch according to claim 1, characterized in that: The insertion rod (13) is slidably connected inside the slot (14).

6. A tunnel steel arch temporary support device according to claim 2, characterized in that: The connecting screw (23) is slidably connected inside the moving groove (26).

7. A tunnel steel arch temporary support device according to claim 1, characterized in that: The T-shaped slide block (10) is slidably connected inside the T-shaped groove (9).

8. A tunnel steel arch temporary support device according to claim 2, characterized in that: The limiting frame (28) is slidably connected inside the supporting plate (22).

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