Multi-truss arch frame fixing and supporting device

Abstract

The utility model relates to the technical field of tunnel construction equipment, in particular to a multi-truss arch frame fixing and supporting device, the top of a supporting frame is fixedly provided with a fixing frame, the fixing frame comprises two supporting side beams, and the tops of the two supporting side beams are fixedly provided with U-shaped clamping seats of an arc-shaped structure; l-shaped clamping seats are arranged at the two ends of the supporting side beams, jacking assemblies used for fixing the L-shaped clamping seats are arranged on the inner sides of the two ends of the supporting side beams, and cam pressing assemblies are rotationally arranged on the vertical parts of the L-shaped clamping seats. The supporting device can be used in cooperation with an arch frame transport vehicle, can effectively support and fix the multi-truss arch frame, guarantees that the multi-truss arch frame is not prone to deformation in the transport process, enables the multi-truss arch frame to be stable in the transport process, avoids the phenomenon that the multi-truss arch frame falls off, and is convenient, fast, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, in particular to a multi-arch frame fixing support device. Background Art

[0002] Tunnels are engineering buildings buried in the ground. They are a form of human use of underground space. Tunnel engineering is an important part of road traffic construction. At present, tunnel support is a key step in tunnel construction. For geological environments with poor surrounding rocks, arches are needed to support tunnels to prevent tunnel collapse and ensure the safety and stability of tunnel construction. The installation of arches is mostly carried out using special arch installation trolleys, but the transportation of arches is usually carried out using non-special equipment such as loaders and truck cranes.

[0003] A Chinese invention patent with application publication number CN116717285A discloses a multi-frame arch frame clamp and a new type of arch frame trolley. This patent solves the problem that the existing arch frame trolley can only install a single prefabricated arch frame, which requires a lot of labor and has low efficiency for workers. It focuses on the functions of grabbing, clamping and executable installation actions of the arch frame, but does not consider the supporting strength of the multi-frame arch frames during transportation, quick fixing and loading and unloading functions. In the transportation process of multi-frame arch frames in the prior art, there are problems that the multi-frame arch frames are easy to deform and difficult to fix, and there are also safety hazards during the transportation of multi-frame arch frames. Summary of the invention

[0004] The utility model provides a multi-frame arch frame fixing support device to solve the problems that the existing multi-frame arch frames are easy to deform and difficult to fix during transportation. The device can be used in conjunction with an arch frame transport vehicle, can effectively support and fix the multiple arch frames, ensure that the multiple arch frames are not easily deformed during transportation, and enable the multiple arch frames to remain stable during transportation, thereby avoiding the multiple arch frames from falling off. The utility model is convenient, fast, safe and reliable.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a device for fixing and supporting multiple arch frames, including a support frame, a fixing frame is fixedly arranged on the top of the support frame, the fixing frame includes two supporting side beams, and a U-shaped bracket with an arc-shaped structure is fixedly arranged on the top of the two supporting side beams. The support frame and the fixing frame support the multiple arch frames, and the U-shaped bracket plays a role in aligning and positioning the multiple arch frames and preventing them from shaking when placing the multiple arch frames.

[0006] L-shaped sockets are provided at both ends of the supporting side beams, and clamping components for fixing the L-shaped sockets are provided on the inner sides of both ends of the supporting side beams. A cam clamping component is rotatably provided on the vertical part of the L-shaped sockets. Through the L-shaped sockets at the ends of the two supporting side beams, multiple arch frames can be clamped to prevent the multiple arch frames from shaking back and forth during transportation.

[0007] Furthermore, the support frame includes two support frame bodies, an intermediate beam is fixedly arranged between the two support frame bodies, and the support frame bodies are in an "H"-shaped structure.

[0008] Furthermore, a plurality of lifting ears are arranged at intervals on the outer side of the support frame body; a base is fixedly arranged at the bottom of the vertical beam of the support frame body; after multiple arch frames are placed on the fixed frame, the multiple arch frames can be fixed by binding together with cable ties and the lifting ears; and the fixed support device can be installed on the arch frame transport vehicle through the base.

[0009] Furthermore, two connecting beams are arranged at intervals between the two supporting side beams, and the two ends of the connecting beams are respectively fixedly connected to the two supporting side beams; the upper end of the vertical beam of one of the supporting frames is fixedly connected to the supporting side beams, and the upper end of the vertical beam of the other supporting frame is fixedly connected to the connecting beam.

[0010] Furthermore, the supporting side beam is a structure that is hollow inside and open at both ends, and the horizontal portion of the L-shaped holder is sleeved in the supporting side beam; the tightening assembly includes a fixed plate and a tightening screw rotatably arranged on the fixed plate, and the fixed plate is fixedly arranged on the inner side of the supporting side beam, one end of the tightening screw passes through the supporting side beam, and the end portion is pressed against the horizontal portion of the L-shaped holder, and through the cooperation between the horizontal portion of the L-shaped holder and the supporting side beam, the L-shaped holder can clamp and fix multiple arch frames with different frame spacings.

[0011] Furthermore, the cam clamping assembly includes a cam, an adjusting screw and a handle, wherein both ends of the adjusting screw are respectively connected to the cam and the handle, and the adjusting screw is rotatably arranged on the vertical part of the L-shaped holder, and the cam is located on the inner side of the vertical part of the L-shaped holder. The cam can be moved to the upper surface of the bottom plate of the arch frame by rotating the adjusting screw, and the multiple arch frames can be clamped by the cam to prevent the multiple arch frames from moving back and forth during transportation.

[0012] Through the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model has a reasonable structure and good use effect. It can be used in conjunction with an arch frame transport vehicle. It can load multiple arch frames of different specifications when transporting multiple arch frames. It can effectively support and fix the multiple arch frames to ensure that the multiple arch frames are not easily deformed during transportation. It can also keep the multiple arch frames stable during transportation and avoid the phenomenon of the multiple arch frames falling off. The utility model is convenient, fast, safe and reliable.

[0014] The support frame and the fixing frame of the utility model support the multiple arch frames; when placing the multiple arch frames, the U-shaped bracket plays a role in aligning and positioning the multiple arch frames and preventing them from shaking, which can avoid the multiple arch frames from tilting after being placed, and solves the problem of difficulty in fixing the multiple arch frames. The U-shaped bracket is arc-shaped, which can effectively avoid the deformation of the multiple arch frames during transportation, and increases the friction area of ​​the multiple arch frames, reducing the shaking of the multiple arch frames during transportation.

[0015] The clamping assembly of the utility model is used to lock the L-shaped socket, and the position of the L-shaped socket can be adjusted by loosening the L-shaped socket through the clamping assembly, so that the L-shaped socket can clamp and fix multiple arch frames with different frame spacings; wherein the effect of clamping and fixing multiple arch frames is achieved through the L-shaped sockets at the ends of the two supporting side beams.

[0016] The utility model can move the cam to the upper surface of the bottom plate of the arch frame by rotating the adjusting screw rod, and press the multiple arch frames by the cam to prevent the multiple arch frames from moving back and forth during transportation, thereby further reducing the shaking of the multiple arch frames during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a multi-arch fixed support device of the utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a multi-arch fixed support device of the utility model. Figure 2 ;

[0019] Figure 3 It is a structural schematic diagram of the L-shaped card holder of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the cam assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of a multi-arch fixed support device of the utility model. Figure 3 ;

[0022] Figure 6 It is a structural schematic diagram of the utility model in use state.

[0023] The numbers in the accompanying drawings are: 1 is a supporting frame, 2 is a middle beam, 3 is a lifting ear, 4 is a base, 5 is a supporting side beam, 6 is a connecting beam, 7 is a U-shaped base, 8 is an L-shaped base, 9 is a fixing plate, 10 is a tightening screw, 11 is a cam, 12 is an adjusting screw, and 13 is a handle. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0025] like Figure 1 to Figure 6 As shown, a multi-arch fixing support device comprises a support frame, a fixing frame is fixedly arranged on the top of the support frame, the fixing frame comprises two supporting side beams 5, and a U-shaped holder 7 with an arc-shaped structure is fixedly arranged on the top of the two supporting side beams 5. In this embodiment, the fixing frame and the support frame are welded from square tubes, and serve as the load-bearing body supporting the multi-arch frames. The two ends of the U-shaped holder 7 are respectively welded and fixed to the middle part of the two supporting side beams 5. When the multi-arch frames are hoisted and placed on the fixing frame and raised and lowered, the middle arch frames are clamped on the U-shaped holder 7, and the curvature of the U-shaped holder 7 is consistent with the curvature of the multi-arch frames. The U-shaped holder 7 plays a role in aligning and positioning the multi-arch frames and preventing them from shaking. When transporting the multi-arch frames, the arch frames of multiple units are fixed by spot welding and the like to ensure that the multi-arch frames are stable on the fixing frame during transportation, and avoid falling off from the fixing frame when encountering climbing sections, so as to ensure transportation safety.

[0026] Both ends of the supporting side beam 5 are provided with L-shaped holders 8, and the inner sides of both ends of the supporting side beam 5 are provided with a tightening assembly for fixing the L-shaped holder 8, and a cam clamping assembly is rotatably provided on the vertical part of the L-shaped holder 8. In this embodiment, the multi-frame arch frame is placed on the fixed frame, and the position of the L-shaped holder 8 can be adjusted after the multi-frame arch frame is straightened. The two opposite L-shaped holders clamp the two sides of the multi-frame arch frame, and the tightening assembly is used to lock the L-shaped holder 8 to prevent the L-shaped holder 8 from slipping; the multi-frame arch frame can be compressed by the cam clamping assembly to prevent the multi-frame arch frame from moving back and forth during transportation.

[0027] The support frame includes two support frame bodies 1, and an intermediate beam 2 is fixedly arranged between the two support frame bodies 1. The support frame body 1 is an "H"-shaped structure. In this embodiment, the number of the intermediate beams 2 is two, and the two ends of the intermediate beam 2 are respectively welded and fixed to the vertical beams of the two support frame bodies 1.

[0028] A plurality of lifting ears 3 are arranged at intervals on the outer side of the support frame body 1; a base 4 is fixedly arranged at the bottom of the vertical beam of the support frame body 1. In this embodiment, there are three lifting ears 3 on each support frame body 1, and the lifting ears 3 are welded and fixed to the support frame body 1. One of the lifting ears 3 is welded and fixed to the middle part of the horizontal beam of the support frame body 1, and the two lifting ears 2 are respectively welded and fixed to the two vertical beams of the support frame body 1. By cooperating with the lifting ears 3, multiple arch frames can be fixed by tying with the cable ties; the base 4 includes an upper top plate and two fixing plates vertically arranged at the bottom of the upper top plate, and the vertical beam of the support frame body 1 is connected to the base 4 through a flange. The purpose is that when the arch frame transport vehicle transports other types of arch frames, different forms of fixed support devices can be replaced, and the base 4 is welded and fixed to the frame of the arch frame transport vehicle.

[0029] Two connecting beams 6 are arranged at intervals between the two supporting side beams 5, and the two ends of the connecting beam 6 are fixedly connected to the two supporting side beams 5 respectively; the upper end of the vertical beam of one of the supporting frame bodies 1 is fixedly connected to the supporting side beam 5, and the upper end of the vertical beam of the other supporting frame body 1 is fixedly connected to the connecting beam 6.

[0030] The supporting side beam 5 is a structure with a hollow interior and openings at both ends. The horizontal portion of the L-shaped holder 8 is sleeved inside the supporting side beam 5. The tightening assembly includes a fixing plate 9 and a tightening screw 10 rotatably arranged on the fixing plate 9. The fixing plate 9 is fixedly arranged on the inner side of the supporting side beam 5. One end of the tightening screw 10 passes through the supporting side beam 5, and the end thereof is pressed against the horizontal portion of the L-shaped holder 8. In this embodiment, the L-shaped holder 8 is slidably sleeved inside the supporting side beam 5, and the telescopic length of the L-shaped holder 8 can be adjusted. When multiple arch frames are placed on the fixing frame and aligned, the position of the L-shaped holder 8 at the end of the supporting side beam 5 is adjusted to clamp the multiple arch frames, and then the tightening screw 10 is rotated to make the end of the tightening screw 10 press against the horizontal portion of the L-shaped holder 8 to fix the L-shaped holder 8. The width between the two opposite L-shaped holders 8 can be adjusted from 2380 mm to 3200 mm to accommodate multiple arch frames with different intervals between the frames.

[0031] The cam clamping assembly includes a cam 11, an adjusting screw 12 and a handle 13. The two ends of the adjusting screw 12 are respectively connected to the cam 11 and the handle 13. The handle 13 is in an "L"-shaped structure. The adjusting screw 12 is rotatably set on the vertical part of the L-shaped holder 8. The cam 11 is located on the inner side of the vertical part of the L-shaped holder 8. In this embodiment, after the L-shaped holder 8 clamps and fixes multiple arch frames, the adjusting screw 12 is rotated to move the cam 11 to the upper surface of the bottom plate of the arch frame, and the multiple arch frames are clamped by using the cam 11. The cross-section of the arch frame is in an "I"-shaped structure.

[0032] When the utility model is used, the base 4 at the bottom of the vertical beam of the support frame body 1 is welded and fixed on the frame of the arch frame transportation. First, the tightening screw 10 is rotated to allow the horizontal part of the L-shaped seat 8 to slide in the supporting side beam 5, and then the distance between the L-shaped seats 8 at both ends of the supporting side beam 5 is adjusted according to the width of the multiple arch frames to be transported, ensuring that the multiple arch frames can be placed between the L-shaped seats 8 at both ends of the supporting side beam 5.

[0033] When the multiple arch frames are hoisted onto the fixed frame, the arch frame in the middle of the multiple arch frames is clamped in the U-shaped clamping seat 7. During the falling process of the multiple arch frames, the U-shaped clamping seat 7 plays a role in aligning and positioning the multiple arch frames and preventing shaking. After the multiple arch frames are aligned, the positions of the L-shaped clamping seats 8 at both ends of the two supporting side beams 5 are adjusted, and the multiple arch frames are clamped and fixed by the L-shaped clamping seats 8, and then the tightening screw 10 is rotated to make the end of the tightening screw 10 push to the level of the L-shaped clamping seat 8. The L-shaped card seat 8 is fixed. After the four L-shaped card seats 8 are fixed by the jacking assembly, the position of the cam 11 of the cam pressing assembly on the four L-shaped card seats 8 is adjusted, and the adjusting screw 12 is rotated by the handle 13 so that the adjusting screw 12 drives the cam 11 to move in the direction of the multiple arch frames, and the cam 11 is moved to the upper surface of the bottom plate of the arch frame. The multiple arch frames are pressed by the cam 11 to achieve the horizontal and vertical fixation of the multiple arch frames. Then, the multiple arch frames can be fixed with a cable tie according to the actual situation, wherein the cable tie is connected to the lifting ear.

[0034] The embodiments described above are only preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, all equivalent changes or modifications made according to the technical solutions described in the patent scope of the utility model should be included in the scope of the patent application of the utility model.

Claims

1. A multi-arch fixed support device, comprising a support frame, characterized in that: A fixing frame is fixedly arranged on the top of the support frame, the fixing frame comprises two supporting side beams (5), and a U-shaped holder (7) with an arc-shaped structure is fixedly arranged on the top of the two supporting side beams (5); Both ends of the supporting side beam (5) are provided with L-shaped clamping seats (8), and the inner sides of both ends of the supporting side beam (5) are provided with a tightening assembly for fixing the L-shaped clamping seat (8), and a cam clamping assembly is rotatably provided on the vertical part of the L-shaped clamping seat (8).

2. A multi-arch fixing support device according to claim 1, characterized in that: The support frame comprises two support frame bodies (1), an intermediate beam (2) is fixedly arranged between the two support frame bodies (1), and the support frame body (1) is in an "H"-shaped structure.

3. A multi-arch fixing support device according to claim 2, characterized in that: A plurality of lifting ears (3) are arranged at intervals on the outer side of the support frame (1); and a base (4) is fixedly arranged at the bottom of the vertical beam of the support frame (1).

4. A multi-arch fixing support device according to claim 2, characterized in that: Two connecting beams (6) are arranged at intervals between the two supporting side beams (5), and the two ends of the connecting beam (6) are respectively fixedly connected to the two supporting side beams (5); the upper end of the vertical beam of one of the supporting frames (1) is fixedly connected to the supporting side beam (5), and the upper end of the vertical beam of the other supporting frame (1) is fixedly connected to the connecting beam (6).

5. A multi-arch fixing support device according to claim 1, characterized in that: The supporting side beam (5) is a structure with a hollow interior and open ends, and the horizontal portion of the L-shaped holder (8) is sleeved inside the supporting side beam (5); the tightening assembly comprises a fixing plate (9) and a tightening screw (10) rotatably arranged on the fixing plate (9), the fixing plate (9) being fixedly arranged on the inner side of the supporting side beam (5), and one end of the tightening screw (10) passes through the supporting side beam (5), and the end portion is pressed against the horizontal portion of the L-shaped holder (8).

6. A multi-arch fixing support device according to claim 1, characterized in that: The cam pressing assembly comprises a cam (11), an adjusting screw (12) and a handle (13), wherein two ends of the adjusting screw (12) are respectively connected to the cam (11) and the handle (13), the adjusting screw (12) is rotatably arranged on a vertical portion of the L-shaped clamping seat (8), and the cam (11) is located inside the vertical portion of the L-shaped clamping seat (8).

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