Detachable arch frame hinging device

Abstract

The utility model relates to a detachable arch frame hinge device which comprises two symmetrically-arranged rotating frames and a rod set, each rotating frame comprises two rotating plates hinged to each other, and each rod set comprises a guide rod and a locking rod. The guide rod and the locking rod can be inserted into the two rotating plates on the two rotating frames; the rotating plate is arranged on the guide rod in a sleeving mode through the guide hole, the guide rod and the locking rod are each provided with a locking piece, and the locking pieces can limit displacement of the rotating plate on the guide rod; each rotating plate is provided with a limiting plate and a positioning block, each limiting plate is provided with a limiting groove matched with a flange on an arch frame, the positioning blocks abut against the flanges on the arch frames to achieve positioning, then the arch frames are clamped through the limiting grooves, and finally the two rotating frames are locked through locking pieces on the guide rods and the locking rods. The arch frame hinge device is installed on the two arch frames, the installation structure and the construction process of the arch frames become simple, disassembly and assembly are convenient, and the arch frame hinge device can be repeatedly used.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction, in particular to a detachable arch frame hinge device. Background Art

[0002] In the construction of tunnels using the drill and blast method, when encountering weak surrounding rock, arches need to be installed in time to control the deformation of the surrounding rock and prevent collapse. The most time-consuming part of the arch installation process is the hole alignment of the flange plates at the ends of adjacent arches. This task requires construction workers to carry out the work in the limited space of the tunnel excavation. The hole alignment is difficult, and the operators are exposed to the excavation space without arch support for a long time, which is unsafe. For a long time, the arch hole alignment installation has mainly adopted manual hole alignment, arch trolley manipulator hole alignment or articulated mechanism hole alignment. Manual hole alignment requires multiple workers to lift the two sections of the arch to be connected, and then align the holes. The arch is heavy, and the installation of two adjacent arches requires at least 5 to 7 people to complete the hole alignment operation, which is labor-intensive. Although there are articulated mechanisms for arch installation, when the existing articulated mechanisms are installed on the arch, additional positioning holes are usually required on the arch, which will destroy the structure of the arch itself and complicate the construction process of the articulated arch. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The utility model provides a detachable arch frame hinge device, aiming to solve the technical problem in the prior art that when a hinge mechanism is installed on the arch frame, an additional positioning hole usually needs to be opened on the arch frame.

[0005] (II) Technical solution

[0006] In order to solve the above problems, the utility model provides a detachable arch frame hinge device, the arch frame hinge device comprises: two symmetrically arranged rotating frames and a rod group, the rotating frames are slidably arranged on the rod group, and the two rotating frames can move closer to or farther from each other to clamp the arch frame;

[0007] The rotating frame comprises two rotating plates hinged to each other, the rotating plates are provided with guide holes and locking holes, and the rod group comprises guide rods and locking rods;

[0008] In the two rotating frames: the guide rod and the locking rod can be inserted into the two rotating plates on the two rotating frames; the rotating plate is sleeved on the guide rod through the guide hole, the rotating plate can move along the guide rod, the rotating plate is sleeved on the locking rod through the locking hole, and the guide rod and the locking rod are both provided with locking pieces, and the locking pieces can limit the displacement of the rotating plate on the guide rod; the rotating plates are both provided with the limiting plates, the limiting plate on one rotating frame is arranged opposite to the limiting plate on the other rotating frame, and the limiting plate is provided with a limiting groove matching the flange on the arch frame.

[0009] Preferably, the rotating plates are each provided with a positioning block, and the positioning block is used to abut against a flange on the arch frame.

[0010] Preferably, the locking member comprises a nut, both ends of the guide rod are provided with external threads, and the locking rod is a screw rod;

[0011] The nuts are sleeved at both ends of the guide rod, the nuts on the guide rod are located between the two rotating plates, and the nut is provided at one end of the locking rod, the nuts on the locking rod are located outside the rotating plate.

[0012] Preferably, two locking holes are provided on the rotating plate, and the guide hole is located between the two locking holes.

[0013] Preferably, a hinge hole is provided on the rotating plate, and a rotating shaft is provided in the hinge hole.

[0014] Preferably, the rotating plate comprises a first bending portion and a second bending portion connected to each other;

[0015] The angle between the first bending portion and the second bending portion is not equal to 180°, and the hinge hole is arranged through the first bending portion; the guide rod, the locking rod and the limit plate are all connected to the second bending portion.

[0016] Preferably, the detachable arch frame hinge device also includes a U-shaped fixing rod; a plurality of angle adjustment holes are arranged on the rotating plate; the two ends of the U-shaped fixing rod correspond to two rotating plates hinged to each other, and the end of the U-shaped fixing rod can be inserted into the angle adjustment hole corresponding to the rotating plate.

[0017] (III) Beneficial effects

[0018] The distance between the rotating plates on the two rotating frames in the utility model is adjustable, and can be locked by the locking pieces on the guide rod and the locking rod, so that the flanges on arch frames of different sizes can be clamped in the limiting grooves of the limiting plates. The positioning of the rotating frame on the arch frame is achieved by arranging positioning blocks on the rotating plates. There is no need to open additional positioning holes on the arch frame, and the arch frame hinge device in the present application can be installed on the two arch frames. The installation structure and installation steps are simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the detachable arch frame hinge device of the utility model;

[0020] Figure 2 It is a top view of the detachable arch frame hinge device of the utility model;

[0021] Figure 3 This is a diagram of the use state of the detachable arch frame hinge device of the utility model;

[0022] Figure 4 It is a cross-sectional view of the U-shaped fixing rod in the utility model.

[0023] [Description of Reference Numerals]

[0024] 1: rotating frame; 11: rotating plate; 111: guide hole; 112: locking hole; 113: hinge hole; 114: first bending portion; 115: second bending portion; 116: angle adjustment hole; 12: limiting plate; 121: limiting groove; 13: positioning block; 14: rotating shaft; 2: rod group; 21: guide rod; 22: locking rod; 23: locking piece; 3: U-shaped fixing rod; 4: arch frame; 41: flange; 42: flange. DETAILED DESCRIPTION

[0025] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The utility model provides two symmetrically arranged rotating frames 1 and a rod group 2, wherein the rotating frame 1 is slidably arranged on the rod group 2;

[0030] The rotating frame 1 includes two rotating plates 11 hinged to each other, the rotating plates are provided with guide holes 111 and locking holes 112, and the rod group 2 includes a guide rod 211 and a locking rod 22;

[0031] In the two rotating frames 1: the guide rod 211 and the locking rod 22 can be inserted into the two rotating plates 11 on the two rotating frames 1; the rotating plate 11 is sleeved on the guide rod 211 through the guide hole 111, and the rotating plate 11 can move along the guide rod 211. The rotating plate 11 is sleeved on the locking rod 22 through the locking hole 112. The guide rod 211 and the locking rod 22 are both provided with a locking piece 23, and the locking piece 23 can limit the displacement of the rotating plate 11 on the guide rod 211; the rotating plates 11 are both provided with a limiting plate 12, and the limiting plate 12 on one rotating frame 1 is arranged opposite to the limiting plate 12 on the other rotating frame 1, and the limiting plate 12 is provided with a limiting groove 121 matching the flange 41 on the arch frame 4.

[0032] In the technical solution of the present application, two rotating plates 11 that can move away from or closer to each other are arranged on the guide rod 21, and a limiting plate 12 is arranged on the rotating plate 11. When the two rotating plates 11 are close to each other so that the flange 41 of the arch frame 4 is clamped in the limiting groove 121 of the limiting plate 12, the locking piece 23 on the guide rod 21 and the locking rod 22 is adjusted to fix the rotating frame 1 on one side of the corresponding arch frame. Since the distance between the two rotating plates 11 on the two rotating frames 1 in the present application is adjustable and can be locked by the locking piece 23 on the guide rod 21 and the locking rod 22, it is possible to clamp the flange 41 on the arch frames 4 of different sizes in the limiting groove 121 of the limiting plate 12. By setting a limiting groove on the limiting plate to clamp the flange of the arch frame, there is no need to open additional positioning holes on the arch frame. The arch frame hinge device in the present application can be installed on the two arch frames. The installation structure and installation steps are simple, and the two rotating frames 1 in the present application can be installed on arch frames 4 of different sizes, which solves the problem in the prior art that when the hinge device is installed on the arch frame, a positioning hole needs to be opened on the arch frame, thereby damaging the arch frame.

[0033] Furthermore, the rotating plate 11 is provided with a positioning block 13, and the positioning block 13 is used to abut against the flange 42 on the arch frame 4. The positioning block 13 is arranged to abut against the flange 42 on the arch frame 4, so that the rotating frame 1 can be positioned on the arch frame 4 more quickly. During the construction process, the positioning block 13 on the rotating plate 11 is first abutted against the flange 42 on the arch frame 4, and the flange 41 of the arch frame 4 is clamped in the limiting groove 121 on the limiting plate 12, and finally the locking rod 22 and the locking member 23 on the guide rod 21 are adjusted so that the two rotating frames 1 can approach each other and be clamped on the arch frame 4, thereby completing the installation of the hinge device on the arch frame 4.

[0034] In a preferred embodiment, the locking member 23 includes a nut, and both ends of the guide rod 21 are provided with external threads, and the locking rod 22 is a screw. Both ends of the guide rod 21 are sleeved with nuts, and the nut on the guide rod 21 is located between the two rotating plates 11. A nut is provided at one end of the locking rod 22, and the nut on the locking rod 22 is located outside the rotating plate 11. By adjusting the position of the nut on the guide rod 21 and then adjusting the spacing between the two rotating plates 11, the hinge device can be adapted to the hinge of different types of arch frames 4. After the flange 41 on the arch frame 4 is clamped in the limiting groove 121 on the limiting plate 12, the rotating frame 1 is fixed on the flange 41 of the arch frame 4 by adjusting the nut on the locking rod. The installation between the rotating frame 1 and the arch frame 4 is completed. The locking member 23 is set as a nut, and the locking member 23 is respectively installed on the locking rod and the guide rod 21 by threaded connection. The above technical solution has a simple structure, is easy to disassemble and assemble the rotating frame 1, and can be reused. The rapid folding and articulation of adjacent arch frames 4 is realized, and the holes are quickly aligned, so that the construction efficiency of the arch frames 4 is higher and the construction risk is lower. At the same time, the articulated device is easy to install and disassemble and can be reused.

[0035] In a more preferred embodiment, two locking holes 112 are provided on the rotating plate 11, and the guide hole 111 is located between the two locking holes 112. Two locking holes 112 are provided on the rotating plate 11, that is, two locking rods are inserted on the rotating plate 11, and the guide rod 21 is located between the two locking rods. When the nut on the locking rod is adjusted so that the two rotating plates 11 on the rotating frame 1 are close to each other and lock the flange 41 of the arch frame 4, the rotating plate 11 can be balanced in force and will not bend. In addition, in the present application, by providing a limiting groove 121 matching the shape of the flange 41 of the arch frame 4 on the limiting plate 12, and making the flange 41 of the arch frame 4 clamped in the limiting groove 121, while ensuring that the rotating frame 1 is firmly installed on the arch frame 4, it can also be avoided that when the nut on the locking rod is adjusted so that the limiting plate 12 locks the flange 41 of the arch frame 4, the rotating plate 11 will not bend.

[0036] Furthermore, a hinge hole 113 is provided on the rotating plate 11, and a rotating shaft 14 is provided in the hinge hole 113, wherein the rotating shaft 14 can be a hinge bolt, and the rotating shaft 14 is provided as a hinge bolt for easy disassembly and assembly of the whole. The rotating plate 11 includes a first bending portion 114 and a second bending portion 115 connected to each other. The angle between the first bending portion 114 and the second bending portion 115 is not equal to 180°, and the hinge hole 113 is provided through the first bending portion 114; the guide rod 21, the locking rod 22 and the limit plate 12 are all connected to the second bending portion 115.

[0037] Finally, the detachable arch frame articulation device also includes a U-shaped fixing rod 3; a plurality of angle adjustment holes 116 are provided on the rotating plate 11; the two ends of the U-shaped fixing rod 3 correspond to two mutually hinged rotating plates 11, and the ends of the U-shaped fixing rod 3 can be inserted into the angle adjustment holes 116 on the corresponding rotating plates 11. Inserting the ends of the U-shaped fixing rod 3 into different angle adjustment holes 116 can realize that the two rotating plates 11 are fixed at different angles, so that the angle between the two adjacent arch frames 4 is kept fixed, which is convenient for the transportation and deployment of the arch frames 4, and avoids the entanglement of the steel mesh welded on the arch frames 4 affecting the deployment operation of the arch frames 4. When the arch frames 4 are deployed, the flanges 42 of the adjacent arch frames 4 are accurately aligned, and the operator can quickly connect the adjacent arch frames 4 through the fixing bolts.

[0038] It should be understood that the above description of the specific embodiments of the utility model is only for illustrating the technical route and features of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, but the utility model is not limited to the above specific implementation methods. All changes or modifications made within the scope of the claims of the utility model should be included in the protection scope of the utility model.

Claims

1. A detachable arch hinge device, characterized in that: The arch frame (4) articulated device comprises: two symmetrically arranged rotating frames (1) and a rod group (2) for connecting the two rotating frames (1); the rotating frames (1) are slidably arranged on the rod group (2); the two rotating frames (1) can move closer to or farther from each other to clamp the arch frame (4); The rotating frame (1) comprises two rotating plates (11) hinged to each other, the rotating plates (11) are provided with guide holes (111) and locking holes (112), and the rod group (2) comprises a guide rod (21) and a locking rod (22); In the two rotating frames (1), the guide rod (21) and the locking rod (22) can be inserted into the two rotating plates (11) on the two rotating frames (1); the rotating plate (11) is sleeved on the guide rod (21) through the guide hole (111), the rotating plate (11) can move along the guide rod (21), the rotating plate (11) is sleeved on the locking rod (22) through the locking hole (112), the guide rod (21) and the rotating plate (11) are sleeved on the locking rod (22). The locking rod (22) is provided with a locking piece (23), and the locking piece (23) can limit the displacement of the rotating plate (11) on the guide rod (21); the rotating plate (11) is provided with a limiting plate (12), the limiting plate (12) on one rotating frame (1) is arranged opposite to the limiting plate (12) on the other rotating frame (1), and the limiting plate (12) is provided with a limiting groove (121) matching the flange (41) on the arch frame (4).

2. The detachable arch hinge device according to claim 1, characterized in that: The rotating plates (11) are each provided with a positioning block (13), and the positioning block (13) is used to abut against a flange (42) on the arch frame (4).

3. The detachable arch hinge device according to claim 1, characterized in that: The locking member (23) comprises a nut, both ends of the guide rod (21) are provided with external threads, and the locking rod (22) is a screw rod; The nuts are sleeved at both ends of the guide rod (21), the nuts on the guide rod (21) are located between the two rotating plates (11), and the nut is provided at one end of the locking rod (22), the nuts on the locking rod (22) are located outside the rotating plates (11).

4. The detachable arch hinge device according to claim 3, characterized in that: The rotating plate (11) is provided with two locking holes (112), and the guide hole (111) is located between the two locking holes (112).

5. The detachable arch hinge device according to any one of claims 1 to 4, characterized in that: The rotating plate (11) is provided with a hinge hole (113), and a rotating shaft (14) is provided in the hinge hole (113).

6. The detachable arch hinge device according to claim 5, characterized in that: The rotating plate (11) comprises a first bending portion (114) and a second bending portion (115) connected to each other; The angle between the first bending portion (114) and the second bending portion (115) is not equal to 180°, and the hinge hole (113) is arranged through the first bending portion (114); the guide rod (21), the locking rod (22) and the limiting plate (12) are all connected to the second bending portion (115).

7. The detachable arch hinge device according to any one of claims 1 to 4, characterized in that: The detachable arch frame (4) hinge device also includes a U-shaped fixing rod (3); a plurality of angle adjustment holes (116) are provided on the rotating plate (11); the two ends of the U-shaped fixing rod (3) correspond to two rotating plates (11) hinged to each other, and the end of the U-shaped fixing rod (3) can be inserted into the angle adjustment hole (116) on the corresponding rotating plate (11).

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