Anti-loose arch frame hinging device

Abstract

The utility model discloses an anti-loose arch frame hinge device, which is characterized in that the anti-loose arch frame hinge device comprises a hinge plate assembly and a guide clamping bolt, the hinged plate assembly comprises a left hinged plate and a right hinged plate which are symmetrically arranged, and the left hinged plate and the right hinged plate are connected together through a guide clamping bolt and clamp and fix the arch frame in the first direction. The left hinge plate and the right hinge plate are the same in structure, and the distance between the two is adjustable. The left hinged plate comprises two rotating plates which are hinged to each other, each rotating plate is provided with an L-shaped hook claw, a bolt mounting lug is correspondingly arranged above each L-shaped hook claw, a set bolt is adjustably arranged on each bolt mounting lug, and the set bolts are matched with the L-shaped hook claws to clamp and fix the arch frame in the second direction; the first direction is the width direction of the lagging jack, and the second direction is the height direction of the lagging jack. The problem that in the transporting process of the arch frame, the arch frame hinge device and the arch frame are loosened is solved.

Description

Technical Field

[0001] This utility model belongs to the field of arch frame hinge technology, and more specifically, it relates to an anti-loosening arch frame hinge device. Background Technology

[0002] In tunnel construction and underground engineering, steel arches serve as a crucial support structure. Their installation speed, quality, and stability are vital to the safety and efficiency of tunnel construction. Especially under adverse geological conditions, the installation quality of steel arches directly impacts the stability of the tunnel structure and the safety of construction workers.

[0003] Traditional steel arch frame installation methods typically involve manual, segmented installation. This is not only slow and time-consuming during tunnel construction, but also extremely difficult and cumbersome due to the limited space inside the tunnel, especially in smaller tunnels, making it hard to guarantee the quality of the installation. Furthermore, manual work at heights poses significant safety hazards; accidents could have disastrous consequences. To address these issues, foldable steel arch frame technology has been increasingly adopted in recent years. Foldable steel arch frames utilize a specific hinged structure, allowing the steel arches to be folded into a smaller volume during transportation and installation, thus facilitating transport and installation. Additionally, the steel arch frames need to be secured together during erection.

[0004] However, during the transportation of the arch frame, the hinged device of the folding arch frame may become loose from the arch frame. Utility Model Content

[0005] To address the issue of loosening between the folding arch frame hinge device and the arch frame during transportation, this utility model aims to provide an anti-loosening arch frame hinge device. The anti-loosening arch frame hinge device comprises: a hinge plate assembly, a guide clamping bolt, a set bolt, and bolt mounting ears. The hinge plate assembly includes a symmetrically arranged left hinge plate and a right hinge plate, connected together by the guide clamping bolt, clamping and fixing the arch frame in a first direction. The left and right hinge plates have identical structures, and the distance between them is adjustable. The left hinge plate includes two hinged rotating plates, each equipped with an L-shaped hook. A bolt mounting ear is correspondingly located above the L-shaped hook, and a set bolt is adjustablely positioned on the bolt mounting ear. The set bolt engages with the L-shaped hook to clamp and fix the arch frame in a second direction. The first direction is the width direction of the arch frame, and the second direction is the height direction of the arch frame.

[0006] Furthermore, the anti-loosening arch frame hinge device also includes: a left spacer bolt, which is adjustablely disposed on the spacer threaded hole of the left hinge plate; and a right spacer bolt, which is adjustablely disposed on the spacer threaded hole of the right hinge plate, with its end abutting against the left spacer bolt.

[0007] Furthermore, the head of the left spacer bolt abuts against the head of the right spacer bolt.

[0008] Furthermore, the two rotating plates of the left hinge plate are connected by the left hinge shaft, and the two rotating plates of the right hinge plate are connected by the right hinge shaft.

[0009] Furthermore, the rotation angle of the two hinged rotating plates is 0°-180°.

[0010] Furthermore, each rotating plate is equipped with two L-shaped hooks.

[0011] Furthermore, the L-shaped hook and the contact surface of the arch frame are set with the same slope.

[0012] Furthermore, each rotating plate has two guide clamping threaded holes for installing guide clamping bolts, and the two guide clamping threaded holes and one fixed-distance threaded hole are arranged in a triangle on the rotating plate.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. The combination installation mode of left and right hinge plates can greatly reduce the weight of the tooling and facilitate manual operation; and the hinge plates can rotate freely within the range of 0°-180°, which can adapt to various arch frame folding requirements.

[0015] 2. Installing set bolts greatly strengthens the connection between the tooling and the arch frame, effectively preventing loosening during transport. Installing guide clamping bolts further enhances the strength of the connection between the tooling and the arch frame.

[0016] 3. Setting a spacer bolt allows for adjustment of the bolt length to meet the requirements of different profile widths, enabling one set of tooling to handle various profile specifications. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an anti-loosening arch frame hinge device provided by this utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the use of the hinged device for the anti-loosening arch frame;

[0019] Figure 3 yes Figure 1 Exploded view of the hinged device of the anti-loosening arch frame.

[0020] In the picture:

[0021] 11. Left hinge plate; 12. Right hinge plate; 13. Rotating plate; 141. Left hinge shaft; 142. Right hinge shaft; 20. Guide clamping bolt; 31. Left spacer bolt; 32. Right spacer bolt; 41. Set bolt; 42. Bolt mounting lug; 43. L-shaped hook; 200. Arch frame. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0023] See Figure 1 This is a structural schematic diagram of an anti-loosening arch frame hinge device provided by this utility model. Combined with... Figures 1 to 3 The anti-loosening arch frame hinge device includes, for example, a hinge plate assembly, a guide clamping bolt 20, a set bolt 41, a bolt mounting lug 42, and an L-shaped hook 43.

[0024] The hinge plate assembly includes a symmetrically arranged left hinge plate 11 and a right hinge plate 12, which are connected together by guide clamping bolts 20 to clamp and fix the arch frame 200 in a first direction, wherein the first direction is the width direction of the arch frame 200. The left hinge plate 11 and the right hinge plate 12 have the same structure, and the distance between them is adjustable to accommodate arch frames 200 of different widths. By adopting the left and right hinge plate combination installation mode, the weight of the tooling can be greatly reduced and the efficiency of manual operation can be improved.

[0025] In one specific embodiment, the left hinge plate 11 includes two hinged rotating plates 13, and the right hinge plate 12 includes two hinged rotating plates 13. Each rotating plate 13 is provided with an L-shaped hook 43, and a bolt mounting lug 42 is correspondingly provided above the L-shaped hook 43. A set bolt 41 is adjustablely disposed on the bolt mounting lug 42. The set bolt 41 cooperates with the L-shaped hook 43 to clamp and fix the arch frame 200 in a second direction, preventing the arch frame 200 from loosening and sliding between the left hinge plate 11 and the right hinge plate 12 during transportation. The second direction is the height direction of the arch frame 200. By providing set bolts 41 that cooperate with and lock with the L-shaped hook 43 on the inner sides of the left hinge plate 11 and the right hinge plate 12, the connection between the tooling and the arch frame 200 can be greatly strengthened, effectively preventing the arch frame 200 from loosening during transportation.

[0026] Furthermore, the two hinged rotating plates 13 have a rotation angle of 0°-180°, which can adapt to various arch frame folding requirements.

[0027] Furthermore, the anti-loosening arch frame hinge device also includes a left spacer bolt 31 and a right spacer bolt 32. The left spacer bolt 31 is adjustablely mounted on the spacer threaded hole of the left hinge plate 11, and the right spacer bolt 32 is adjustablely mounted on the spacer threaded hole of the right hinge plate 12. The end of the right spacer bolt 32 abuts against the end of the left spacer bolt 31. Construction personnel can adjust the distance between the left hinge plate 11 and the right hinge plate 12 by adjusting the lengths of the two spacer bolts within the clamping space, thereby adapting to the clamping requirements of arch frames 200 of different widths. Preferably, the head of the left spacer bolt 31 abuts against the head of the right spacer bolt 31. This arrangement increases the contact area when the end of the right spacer bolt 32 abuts against the end of the left spacer bolt 31, ensuring stability after the distance is adjusted.

[0028] Preferably, the two rotating plates 13 of the left hinge plate 11 are connected by a left hinge shaft 141, and the two rotating plates 13 of the right hinge plate 12 are connected by a right hinge shaft 142. Compared to connecting the left hinge plate 11 and the right hinge plate 12 simultaneously with a single hinge shaft, using independent left hinge plates 11 and right hinge plates 12 for combined installation eliminates the need to consider adjusting the length of the hinge shaft when adjusting the distance between the left hinge plate 11 and the right hinge plate 12 using the left spacer bolt 31 and the right spacer bolt 32. This ensures the rotational stability of the left hinge plate 11 and the right hinge plate 12 and simplifies the operation steps when adjusting the distance between the left hinge plate 11 and the right hinge plate 12.

[0029] Preferably, each rotating plate 13 is provided with two L-shaped hooks 43. Correspondingly, each rotating plate 13 is provided with two bolt mounting ears 42, that is, each rotating plate 13 is provided with two sets of set bolts 41 and L-shaped hooks 43 to form a clamping structure. This arrangement can further improve the connection between the left and right hinge plates and the arch frame 200, and further prevent the arch frame 200 from loosening during transportation.

[0030] Preferably, each rotating plate 13 has two guide clamping threaded holes for installing guide clamping bolts 20. The two guide clamping threaded holes and one fixed-distance threaded hole are arranged in a triangle on the rotating plate 13, which improves the clamping stability and makes the hole distribution more reasonable.

[0031] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A loose-tight arch hinging device, characterized by, The anti-loosening arch frame hinge device includes: a hinge plate assembly, a guide clamping bolt, a set bolt, and bolt mounting ears; the hinge plate assembly includes a symmetrically arranged left hinge plate and a right hinge plate, which are connected together by the guide clamping bolt to clamp and fix the arch frame in a first direction; wherein, the left hinge plate and the right hinge plate have the same structure, and the distance between them is adjustable; the left hinge plate includes two rotating plates that are hinged to each other, each rotating plate is provided with an L-shaped hook, and a bolt mounting ear is provided above the L-shaped hook. The set bolt is adjustablely set on the bolt mounting ear, and the set bolt cooperates with the L-shaped hook to clamp and fix the arch frame in a second direction; the first direction is the width direction of the arch frame, and the second direction is the height direction of the arch frame.

2. The anti-sagging arch bracket articulation device of claim 1, wherein, The anti-loosening arch frame hinge device also includes: The left spacer bolt is adjustablely mounted on the spacer threaded hole of the left hinge plate; The right spacer bolt is adjustablely mounted on the spacer threaded hole of the right hinge plate, and its end abuts against the left spacer bolt.

3. The anti-sagging arch frame articulation device of claim 2, wherein, The head of the left spacer bolt abuts against the head of the right spacer bolt.

4. The anti-sagging arch bracket articulation device of claim 1, wherein, The two rotating plates of the left hinge plate are connected by the left hinge shaft, and the two rotating plates of the right hinge plate are connected by the right hinge shaft.

5. The anti-sagging arch bracket articulation device of claim 1, wherein, The rotation angle of the two hinged rotating plates is 0°-180°.

6. The anti-sagging arch bracket articulation device of claim 1, wherein, Each rotating plate is equipped with two L-shaped hooks.

7. The anti-sagging arch bracket articulation device of claim 1, wherein, The L-shaped hook and the arch frame contact surface are set with the same slope.

8. The anti-sagging arch bracket articulation device of claim 2, wherein, Each rotating plate has two guide clamping threaded holes for installing guide clamping bolts. The two guide clamping threaded holes and one fixed-distance threaded hole are arranged in a triangle on the rotating plate.

Images