Tunnel arch supporting device for tunnel construction

Abstract

The utility model relates to the technical field of tunnel arch supports, in particular to a tunnel arch supporting device for tunnel construction, which comprises a base and a shaft rod integrally formed at the bottom of the base. The movable seat can be detachably arranged on the shaft rod, the distance between the movable seat and the base can be adjusted in the axial direction of the shaft rod, and the base, the shaft rod and the movable seat form a lever type joint piece; the assembly flanges are arranged at the ends of the arc-shaped steel structures, joint sockets are designed on the assembly flanges, and the joint sockets are rotationally connected with the outer walls of the shaft rods; according to the assembling tool for the dome supporting piece, the dome supporting piece can be rapidly assembled, and the angle between the arc-shaped steel structure and the joint piece can be adjusted according to requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel arch supports, in particular to a tunnel arch support device for tunnel construction. Background Art

[0002] Tunnels include traffic tunnels, municipal tunnels and resource collection tunnels. During the tunnel construction process, support devices are needed to strongly support the arches to ensure the safety of engineering vehicles and construction workers in the tunnel.

[0003] In the prior art, an arch steel structure is usually built on site. The arch steel structure generally includes a dome and columns. However, in the actual construction process, the dome will be prefabricated, which makes it difficult to change it according to the on-site conditions during the actual installation process. Summary of the invention

[0004] The utility model provides a tunnel arch support device for tunnel construction, which can quickly assemble a dome support component and can adjust the angle between an arc-shaped steel structure and a joint component as required.

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

[0006] A tunnel arch support device for tunnel construction, comprising:

[0007] A base and a shaft integrally formed at its bottom; a movable seat that can be disassembled and assembled on the shaft, wherein the movable seat can adjust the distance between the movable seat and the base along the axial direction of the shaft, and the base, the shaft and the movable seat form a lever-type joint component; an arc-shaped steel structure and an assembly flange at its end, wherein the assembly flange is designed with a joint socket, and the joint socket is rotatably connected to the outer wall of the shaft; and the joint component is designed with an anti-detachment mechanism that limits the assembly flange from detaching from the shaft.

[0008] Optionally, the anti-slip mechanism includes a limit block fixedly mounted on the base, an outer wall of the assembly flange in contact with the base is provided with an arc groove, the arc center of the arc groove is located on the axis of the shaft rod, and the groove cross-section of the arc groove is semicircular. When the limit block is docked with the arc groove, the limit block slides on the inner wall of the arc groove, and the joint socket forms a rotational fit with the shaft rod. The anti-slip mechanism also includes a quick lock unit for limiting the rotation of the assembly flange.

[0009] Optionally, the quick-locking unit includes an assembly groove provided inside the shaft rod, the inner wall of the assembly groove is provided with a pin groove, a pin key is slidably installed in the pin groove, the upper and lower edges of the pin key in the assembly groove are both designed with a first inclined surface, a driving block is slidably installed in the assembly groove along the axial direction of the shaft rod, the upper and lower edges of the driving block are both designed with a second inclined surface, the first inclined surface and the second inclined surface are abutted against each other for transmission, and the downward displacement of the driving block can make the outer wall of the pin key abut against the wall of the joint socket, and the quick-locking unit includes a driving part for controlling the downward displacement of the driving block.

[0010] Optionally, a magnetic block is fixedly installed on the top of the driving block, and part of the structure of the pin key is made of magnetic material. When the magnetic block moves downward to be flush with the driving block, the magnetic poles of the magnetic block and the pin key are aligned, and the pin key approaches the magnetic block.

[0011] Optionally, a threaded groove is provided at the bottom of the shaft rod, a bolt column is installed at the top of the movable seat, the bolt column and the movable seat can be threadedly connected, and a gasket is provided on the outside of the bolt column.

[0012] Optionally, the driving part includes a pull rod installed at the bottom of the driving block, the pull rod passes through the bolt column and the movable seat in sequence, and an elastic rope is fixedly installed between the top of the magnetic block and the inner top of the assembly groove.

[0013] Optionally, the abutting end of the pin key is designed with a flexible friction pad.

[0014] Optionally, the top of the base is designed to be arc-shaped, and the outer wall of the arc-shaped steel structure and the top of the base are on the same arc surface.

[0015] Optionally, the arc-shaped steel structure is an I-shaped steel, and a plurality of assembly holes are provided on an outer wall of the arc-shaped steel structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The assembly flange can use the joint socket to form a rotational assembly with the shaft of the joint part, and adjust the angle position according to actual needs. Then, the upper and lower outer walls of the assembly flange are limited by the movable seat and the base. After that, the assembly flange can be locked by the anti-slip mechanism, thereby forming a stable assembly between the assembly flange, the arc-shaped steel structure and the joint part. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the dome support member in the utility model;

[0019] Figure 2 For this utility model Figure 1 A right view structural diagram of ;

[0020] Figure 3 For the utility model Figure 2 The schematic diagram of the structure is a cross-section at AA in the middle;

[0021] Figure 4 It is a structural schematic diagram of the arc-shaped steel structure and the assembly flange in the utility model;

[0022] Figure 5 It is a schematic diagram of the assembly of the joint member and the assembly flange in the utility model;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the joint part and the assembly flange in the utility model;

[0024] Figure 7 It is a structural schematic diagram of the anti-slip mechanism in the utility model;

[0025] Figure 8 It is a schematic diagram of the angle adjustment of the arc-shaped steel structure in the utility model.

[0026] In the figure: 1. base; 2. arc-shaped steel structure; 3. assembly flange; 4. shaft; 5. pin key; 6. drive block; 9. arc-shaped groove; 11. limit block; 12. movable seat; 13. bolt column; 14. elastic rope; 15. magnetic moving block. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figures 1 to 8 The utility model provides a technical solution: a tunnel arch support device for tunnel construction, comprising:

[0029] The base 1 and the shaft 4 integrally formed at the bottom thereof; a movable seat 12 which can be disassembled and assembled on the shaft 4, the movable seat 12 can adjust the distance between the movable seat 12 and the base 1 along the axial direction of the shaft 4, the base 1, the shaft 4 and the movable seat 12 form a lever-type joint component; an arc-shaped steel structure 2 and an assembly flange 3 at its end, a joint socket designed on the assembly flange 3, and the joint socket is rotatably connected to the outer wall of the shaft 4; an anti-detachment mechanism is designed on the joint component to limit the assembly flange 3 from detaching from the shaft 4.

[0030] In the prior art, the dome of the arch support device is generally an integrally formed part, which results in the need to prepare a lot of domes in actual use, and the removal and adjustment between the dome and the column after installation is also relatively difficult. In the present case, the curvature, length and width of the arc-shaped steel structure 2 do not affect the docking assembly between the assembly flange 3 and the joint part. The assembly flange 3 can form a rotational assembly with the shaft 4 of the joint part by means of the joint socket, and the angle position is adjusted according to actual needs. Then, the upper and lower outer walls of the assembly flange 3 are limited by the movable seat 12 and the base 1. After that, the assembly flange 3 can be locked by means of an anti-slip mechanism, so that a stable assembly is formed between the assembly flange 3, the arc-shaped steel structure 2 and the joint part.

[0031] The joint part, the arc-shaped steel structure 2 and the assembly flange 3 form a dome support.

[0032] Among them, the more preferred embodiment is that the anti-slip mechanism includes a limit block 11 fixedly mounted on the base 1, and an arc groove 9 is provided on the outer wall where the assembly flange 3 contacts the base 1, the arc center of the arc groove 9 is located on the axis of the shaft 4, and the groove cross-section of the arc groove 9 is semicircular. When the limit block 11 is docked with the arc groove 9, the limit block 11 slides on the inner wall of the arc groove 9, and the joint socket and the shaft 4 form a rotational fit. The anti-slip mechanism also includes a quick lock unit for limiting the rotation of the assembly flange 3.

[0033] See also Figures 3 to 7 In this embodiment, the number of limit blocks 11 and arc grooves 9 can be increased to improve the stability. When using and installing, the arc steel structure 2 can be selected according to the actual situation of tunnel construction, and then the joint parts, assembly flanges 3 and arc steel structure 2 are assembled. The assembly flanges 3 are first docked with the joint parts to complete the docking between the limit blocks 11 and the arc grooves 9. Then, the angle of the arc steel structure 2 relative to the base 1 is adjusted according to the tunnel dome situation, and then the movable seat 12 is used to limit the assembly flange 3. Finally, the quick lock unit is used to limit the assembly flange 3, thereby completing the installation of the dome support.

[0034] See also Figure 8 The two arc-shaped steel structures 2 installed on the joints have different angles and can be adjusted according to the actual situation of the tunnel dome to improve the adaptability of the supporting device.

[0035] Based on the anti-slip mechanism embodiment, the quick lock unit includes an assembly groove opened inside the shaft rod 4, the inner wall of the assembly groove is opened with a pin groove, a pin key 5 is slidably installed in the pin groove, the upper and lower edges of the pin key 5 located in the assembly groove are both designed with a first inclined surface, and a driving block 6 is axially slidably installed in the assembly groove along the shaft rod 4, the upper and lower edges of the driving block 6 are both designed with a second inclined surface, and the first inclined surface and the second inclined surface are abutted against each other. The downward displacement of the driving block 6 can make the outer wall of the pin key 5 abut against the wall of the joint socket, and the quick lock unit includes a driving part that controls the downward displacement of the driving block 6.

[0036] In this embodiment, the pin key 5 can be displaced radially of the shaft 4 by utilizing the transmission cooperation between the driving block 6 and the pin key 5, so as to pass through the pin groove and abut against the wall of the fossa. Since the limit block 11 cooperates with the arc groove 9, the assembly flange 3 can be limited in the radial direction. At this time, the pressure of the pin key 5 on the fossa can limit the rotation of the assembly flange 3, so that the assembly flange 3 can remain stable on the joint part. Specifically, the transmission between the pin key 5 and the driving block 6 is achieved by utilizing the transmission relationship between the first inclined surface and the second inclined surface, and the driving part is used to control the downward displacement of the driving block 6.

[0037] The pin key 5 presses against the assembly flange 3 and can also make the arc groove 9 and the limit block 11 closer, thereby ensuring the stability of the assembly flange 3.

[0038] On the basis of the quick lock unit embodiment, a magnetic block 15 is fixedly installed on the top of the driving block 6, and part of the structure of the pin key 5 is made of magnetic material. When the magnetic block 15 moves downward to be flush with the driving block 6, the magnetic poles of the magnetic block 15 and the pin key 5 are aligned, and the pin key 5 approaches the magnetic block 15. Please refer to Figure 3 and Figure 7 In this embodiment, when it is necessary to release the pressure contact between the pin key 5 and the joint socket, it is only necessary to make the driving part continue to move downward, and the driving block 6 is separated from the contact with the pin key 5. At this time, the pin key 5 has lost the pressure on the assembly flange 3, and the driving block 6 and the magnetic block 15 continue to move downward. At the same time, the magnetic block 15 will be in the attraction position, that is, the pin key 5 and the magnetic block 15 can be attracted to each other with the same sex. At this time, the pin key 5 can approach the magnetic block 15 and reset.

[0039] Based on the quick lock unit embodiment, a threaded groove is provided at the bottom of the shaft 4, and a bolt column 13 is installed on the top of the movable seat 12. The bolt column 13 and the movable seat 12 can be threadedly connected, and a gasket is provided on the outside of the bolt column 13. During the use and installation process, the movable seat 12 can be rotated to achieve its up and down displacement, so that the locking and release of the assembly flange 3 can be quickly completed. Adding a gasket can enhance the limiting capacity between the movable seat 12 and the assembly flange 3.

[0040] Furthermore, the driving part includes a pull rod installed at the bottom of the driving block 6, which passes through the bolt column 13 and the movable seat 12 in sequence. An elastic rope 14 is fixedly installed between the top of the magnetic block 15 and the inner top of the assembly groove. By designing the pull rod, the operator can quickly control the up and down displacement of the driving block 6, and the elastic rope 14 can ensure that the driving block 6 can return to its initial position to facilitate the next pulling.

[0041] On the basis of the embodiment of the quick lock unit, the abutting end of the pin key 5 is designed with a flexible friction pad, which does not damage the joint socket and can also improve the friction force.

[0042] Furthermore, the top of the base 1 is designed to be arc-shaped, and the outer wall of the arc-shaped steel structure 2 is on the same arc surface as the top of the base 1, ensuring the fit with the tunnel dome, thereby enhancing the bearing capacity.

[0043] The arc-shaped steel structure 2 is an I-shaped steel, and a plurality of assembly holes are opened on the outer wall of the arc-shaped steel structure 2. Figure 1 By designing multiple assembly holes, during tunnel construction, multiple dome supports need to be arranged at preset intervals, and then the associated steel structure is used to create an assembly relationship between adjacent dome supports, and the assembly holes are used for installation nodes between dome supports.

[0044] By utilizing the cooperation of the above structures, the dome support member can be assembled quickly, and the angle between the arc-shaped steel structure 2 and the joint member can be adjusted as required.

[0045] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense without any doubt. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0046] 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 arch support device for tunnel construction, characterized in that: include: A base (1) and a shaft (4) integrally formed at the bottom thereof; A movable seat (12) can be detachably mounted on the shaft (4), wherein the movable seat (12) can adjust the distance between the movable seat (12) and the base (1) along the axial direction of the shaft (4), and the base (1), the shaft (4) and the movable seat (12) form a lever-type joint component; The arc-shaped steel structure (2) and the assembly flange (3) at its end, wherein the assembly flange (3) is provided with a joint socket, and the joint socket is rotatably connected to the outer wall of the shaft (4); The joint part is designed with an anti-slip mechanism for limiting the assembling flange (3) from detaching from the shaft rod (4).

2. The tunnel arch support device for tunnel construction according to claim 1, characterized in that: The anti-slip mechanism comprises a limit block (11) fixedly mounted on the base (1); an outer wall of the assembly flange (3) in contact with the base (1) is provided with an arc groove (9); the arc center of the arc groove (9) is located on the axis of the shaft rod (4); the groove cross section of the arc groove (9) is semicircular; when the limit block (11) is docked with the arc groove (9), the limit block (11) slides on the inner wall of the arc groove (9) to form a rotational fit with the joint socket and the shaft rod (4); the anti-slip mechanism also comprises a quick lock unit for limiting the rotation of the assembly flange (3).

3. The tunnel arch support device for tunnel construction according to claim 2, characterized in that: The quick-lock unit comprises an assembly groove provided inside the shaft (4), the inner wall of the assembly groove being provided with a pin groove, a pin key (5) being slidably installed in the pin groove, the upper and lower edges of the pin key (5) located in the assembly groove being both provided with a first inclined surface, a driving block (6) being slidably installed in the assembly groove along the axial direction of the shaft (4), the upper and lower edges of the driving block (6) being both provided with a second inclined surface, abutting transmission being generated between the first inclined surface and the second inclined surface, downward displacement of the driving block (6) enabling the outer wall of the pin key (5) to abut against the wall of the joint socket, and the quick-lock unit comprising a driving portion for controlling the downward displacement of the driving block (6).

4. The tunnel arch support device for tunnel construction according to claim 3, characterized in that: A magnetic moving block (15) is fixedly mounted on the top of the driving block (6), and a part of the structure of the pin key (5) is made of magnetic material. When the magnetic moving block (15) moves downward to be flush with the driving block (6), the magnetic poles of the magnetic moving block (15) and the pin key (5) are aligned, and the pin key (5) approaches the magnetic moving block (15).

5. The tunnel arch support device for tunnel construction according to claim 4, characterized in that: A threaded groove is provided at the bottom of the shaft rod (4), a bolt column (13) is installed at the top of the movable seat (12), the bolt column (13) and the movable seat (12) can be threadedly connected, and a gasket is sleeved on the outside of the bolt column (13).

6. The tunnel arch support device for tunnel construction according to claim 5, characterized in that: The driving part comprises a pull rod installed at the bottom of the driving block (6), the pull rod passes through the bolt column (13) and the movable seat (12) in sequence, and an elastic rope (14) is fixedly installed between the top of the magnetic moving block (15) and the inner top of the assembly groove.

7. The tunnel arch support device for tunnel construction according to claim 3, characterized in that: The abutting end of the pin key (5) is designed with a flexible friction pad.

8. The tunnel arch support device for tunnel construction according to any one of claims 1 to 7, characterized in that: The top of the base (1) is designed to be arc-shaped, and the outer wall of the arc-shaped steel structure (2) and the top of the base (1) are on the same arc surface.

9. The tunnel arch support device for tunnel construction according to claim 8, characterized in that: The arc-shaped steel structure (2) is an I-shaped steel, and a plurality of assembly holes are provided on the outer wall of the arc-shaped steel structure (2).

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