Tunnel steel arch mounting assistor

Abstract

The utility model provides a tunnel steel arch mounting assistor, and belongs to the technical field of tunnel steel arch mounting. The auxiliary device comprises a connecting frame body, and the connecting frame body comprises at least two supporting rods hinged to each other so that the connecting frame body can be folded; a first fixing structure and a second fixing structure are installed at the two ends of the connecting frame body respectively and used for being detachably connected with two adjacent units of the steel arch frame respectively. When the tunnel steel arch mounting assistor works, a plurality of tunnel steel arch mounting assistors are used, so that the steel arches can be assembled into a whole before being mounted; the assistor solves the problems that a traditional steel arch is unstable in mounting and supporting, low in efficiency, large in labor intensity and the like, construction safety and efficiency are improved, the labor intensity is reduced, and high universality is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel steel arch frame installation technology, specifically relating to a tunnel steel arch frame installation auxiliary device. Background Technology

[0002] With the rapid development of infrastructure projects such as high-speed railways in my country, tunnel engineering is increasingly involved in high-speed rail construction. During tunnel construction, steel arch frames are a key support tool to ensure structural stability.

[0003] A single steel arch frame is quite large and usually needs to be divided into multiple units for processing. During installation, the multiple units of a single steel arch frame need to be installed in sequence.

[0004] However, the confined space, complex geological conditions, and unstable construction environment of tunnels make it difficult to operate mechanized equipment. Under these circumstances, manual installation of steel arch frames (also known as scaffolding) becomes a common construction method. Traditional manual scaffolding installation requires the installation and connection of multiple units one by one. This segmented installation method has many drawbacks: firstly, it cannot ensure that the steel arch frames form a complete support function in a timely manner; secondly, it is difficult to guarantee that multiple units are perfectly aligned, often requiring multiple adjustments, which are quite difficult. This not only leads to unstable support during construction, creating safety hazards, but also requires a large amount of manpower, resulting in high labor intensity and low construction efficiency.

[0005] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0006] The purpose of this utility model is to provide a tunnel steel arch frame installation auxiliary device to at least solve the problems of unstable steel arch frame installation support, low construction efficiency, and high labor intensity in the existing technology.

[0007] To achieve the above objectives, the tunnel steel arch frame installation auxiliary device of this utility model provides the following technical solution:

[0008] A tunnel steel arch frame installation aid includes a connecting frame, the connecting frame including at least two mutually hinged support rods to allow the connecting frame to be foldable;

[0009] The connecting frame is equipped with a first fixing structure and a second fixing structure at both ends. The first fixing structure and the second fixing structure are used to detachably connect two units adjacent to the steel arch frame. During operation, the steel arch frame can be assembled into a whole before installation by using multiple tunnel steel arch frame installation aids.

[0010] As a further optimized technical solution, the first fixing structure includes a first connecting groove and a first fixing component. The first connecting groove is rotatably connected to the connecting frame about the direction of the vertical connecting frame axis, and the first fixing component passes through the side wall of the first connecting groove and is threadedly connected to the first connecting groove.

[0011] As a further optimized technical solution, a connecting rod is fixedly connected to one end of the connecting frame in a direction perpendicular to the axial extension of the connecting frame, and the first connecting groove and the connecting rod are connected by a first rotating connector.

[0012] As a further optimized technical solution, the first rotating connector includes a first inner ring and a first outer ring arranged coaxially. The first inner ring is fixedly connected to the connecting rod, and the first outer ring is sleeved on the outside of the first inner ring and rotatably connected to the first inner ring. A set screw is threaded through the first outer ring in a radial direction. The set screw can press the first inner ring to limit the rotation of the first outer ring of the first rotating connector relative to the first inner ring.

[0013] As a further optimized technical solution, the second fixing structure includes a second connecting groove and a second fixing component. The second connecting groove is rotatably connected to the connecting frame, and the second fixing component passes through the side wall of the second connecting groove and is threadedly connected to the second connecting groove.

[0014] As a further optimized technical solution, a second connector is provided at the end of the connecting frame away from the first fixed structure. The second connector can rotate around the axial direction of the connecting frame. A third connector that rotates around a direction perpendicular to the axis of the second connector is fixedly connected to the outside of the second connector. The second connecting groove is fixedly connected to the third connector.

[0015] As a further optimized technical solution, the second connector includes a second inner ring and a second outer ring arranged coaxially. The second inner ring is fixedly connected to the connecting frame, and the second outer ring is sleeved on the outside of the second inner ring and rotatably connected to the second inner ring. A set screw is threaded through the second outer ring in a radial direction. The set screw can press the second inner ring to limit the rotation of the second outer ring.

[0016] As a further optimized technical solution, the third connector includes a third inner ring and a third outer ring arranged coaxially. The third inner ring is fixedly connected to the second outer ring, and the third outer ring is sleeved on the outside of the third inner ring and rotatably connected to the third inner ring. A set screw is threaded through the third outer ring in a radial direction. The set screw can press the third inner ring to limit the rotation of the third outer ring relative to the third inner ring.

[0017] As a further optimized technical solution, all the set screws are fixedly connected to a soft and elastic compression pad at their bottom ends.

[0018] As a further optimized technical solution, both the first fixing component and the second fixing component include an integrally connected screw and a driving component, wherein the driving component is disposed on the outside of the screw to drive the screw to rotate.

[0019] Beneficial effects: Traditional manual segmented installation of steel arch frames makes it difficult to form complete support in the early stages of installation, posing significant safety risks. However, by using the technical solution of this utility model, multiple units of the steel arch frame can be pre-assembled into a whole before installation. In this way, during installation, a complete steel arch frame can be directly placed in place, and then the two ends of multiple units can be connected respectively. This not only provides complete support during installation and reduces safety risks, but also eliminates the need for repeated adjustments during connection, greatly improving the installation speed of the steel arch frame, significantly shortening the construction cycle, and improving overall construction efficiency. In addition, traditional manual scaffolding erection requires a large number of people working together, which is labor-intensive. The installation aid of this utility model, through its reasonable structural design, enables rapid assembly and accurate positioning of steel arch frame units, reducing the difficulty and workload of manual operation. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0021] Figure 1 A schematic diagram of the overall structure of one embodiment of the tunnel steel arch frame installation auxiliary device of this utility model;

[0022] Figure 2 Another perspective schematic diagram of the overall structure of an embodiment of the tunnel steel arch frame installation auxiliary device of this utility model;

[0023] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the first rotating connector of this utility model;

[0024] Figure 4 This is a reference diagram showing the working state of one embodiment of the tunnel steel arch frame installation auxiliary device of this utility model.

[0025] In the diagram: 100, connecting frame; 110, support rod; 120, connecting rod; 200, first fixing structure; 210, first connecting groove; 220, first fixing component; 300, second fixing structure; 310, second connecting groove; 320, second fixing component; 321, screw; 322, driving component; 400, first rotating connecting component; 410, first inner ring; 420, first outer ring; 500, set screw; 510, pressure pad; 600, second connecting component; 610, second inner ring; 620, second outer ring; 700, third connecting component; 710, third inner ring; 720, third outer ring. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0027] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0029] The shapes and sizes of the components in the attached drawings do not reflect the actual proportions of the product; they are only intended to illustrate the content of this utility model.

[0030] This utility model provides an auxiliary device for installing steel arch frames in tunnels. Before the actual installation of the steel arch frames, construction workers can assemble the steel arch frames to be installed on the outside of the tunnel using the auxiliary device. Then, by folding the connecting frame, one or more assembled steel arch frames are transported into the tunnel for installation. During installation, by unfolding the connecting frame, multiple units of the steel arch frame are connected end-to-end to form a complete steel arch frame, thus facilitating the installation and connection of the steel arch frames. Please refer to the embodiments below for details.

[0031] Example 1

[0032] like Figure 1-3 As shown, please refer to the details. Figure 1 , Figure 2 The tunnel steel arch frame installation auxiliary device includes a connecting frame 100, which includes at least two hinged support rods 110 to allow the connecting frame 100 to be foldable. The foldable connecting frame 100 facilitates storage and transportation when not in use, reducing the space occupied on the construction site; it also facilitates the transportation of the connected steel arch frame into the tunnel for installation.

[0033] The connecting frame 100 has a first fixing structure 200 and a second fixing structure 300 installed at both ends. The first fixing structure 200 and the second fixing structure 300 are used for detachable connection of two units adjacent to the steel arch frame. During operation, by using multiple tunnel steel arch frame installation aids, the steel arch frame can be assembled into a whole before installation, thereby improving the stability and accuracy of the steel arch frame installation, reducing the number of adjustments, and reducing construction safety hazards.

[0034] Furthermore, the first fixing structure 200 includes a first connecting groove 210 and a first fixing component 220. The first connecting groove 210 is rotatably connected to the connecting frame 100 about the axis of the vertical connecting frame 100, and the first fixing component 220 passes through the side wall of the first connecting groove 210 and is threadedly connected to the first connecting groove 210. This structural design allows the first connecting groove 210 to flexibly adjust its angle, better adapt to the connection positions of different units of the steel arch frame, and facilitates detachable connection with the steel arch frame units.

[0035] Specifically, a connecting rod 120 is fixedly connected to one end of the connecting frame 100 along a direction perpendicular to the axial extension of the connecting frame 100. A first rotating connector 400 is provided at each end of the connecting rod 120. The first connecting groove 210 is connected to the connecting rod 120 through the first rotating connector 400.

[0036] like Figure 3As shown, the first rotating connector 400 includes a first inner ring 410 and a first outer ring 420 coaxially arranged. The first inner ring 410 is fixedly connected to the connecting rod 120, and the first outer ring 420 is sleeved outside the first inner ring 410 and rotatably connected to it. To facilitate smoother relative rotation between the first inner ring 410 and the first outer ring 420, in this embodiment, multiple ball bearings are spaced apart between the first inner ring 410 and the first outer ring 420. A set screw 500 is threaded radially through the first outer ring 420, and the set screw 500 can press the first inner ring 410 to limit the rotation of the first outer ring 420 of the first rotating connector 400 relative to the first inner ring 410. This design allows for connection stability after the angle of the first connecting groove 210 is adjusted and fixed by the set screw 500.

[0037] Similar to the first fixing structure 200, the second fixing structure 300 includes a second connecting groove 310 and a second fixing component 320. The second connecting groove 310 is rotatably connected to the connecting frame 100, and the second fixing component 320 passes through the side wall of the second connecting groove 310 and is threadedly connected to the second connecting groove 310. This is used to achieve a detachable connection between the other end of the connecting frame 100 and the steel arch frame unit.

[0038] Specifically, a second connector 600 is provided at the end of the connecting frame 100 away from the first fixed structure 200. The second connector 600 can rotate around the axial direction of the connecting frame 100. A third connector 700 is fixedly connected to the outer side of the second connector 600, rotating about a direction perpendicular to the axis of the second connector 600. The second connecting groove 310 is fixedly connected to the third connector 700. This multi-layer rotating structure design allows the second connecting groove 310 to flexibly adjust its position and angle in multiple directions to adapt to the connection requirements of different shapes and positions of the steel arch frame.

[0039] Similar to the structure of the first rotating connector 400, the second connector 600 includes a second inner ring 610 and a second outer ring 620 arranged coaxially. The second inner ring 610 is fixedly connected to the connecting frame 100, and the second outer ring 620 is sleeved on the outside of the second inner ring 610 and rotatably connected to the second inner ring 610. A set screw 500 is threaded radially through the second outer ring 620, and the set screw 500 can press the second inner ring 610 to limit the rotation of the second outer ring 620.

[0040] Similar to the structure of the first rotating connector 400, the third connector 700 includes a third inner ring 710 and a third outer ring 720 arranged coaxially. The third inner ring 710 is fixedly connected to the second outer ring 620, and the third outer ring 720 is sleeved on the outside of the third inner ring 710 and rotatably connected to the third inner ring 710. A set screw 500 is threaded radially through the third outer ring 720. The set screw 500 can press the third inner ring 710 to limit the rotation of the third outer ring 720 relative to the third inner ring 710.

[0041] In addition, all of the aforementioned set screws 500 have a soft, elastic clamping washer 510 fixedly connected to their bottom ends. The clamping washer 510 increases the friction between the set screw 500 and the clamped part when the set screw 500 is tightened, ensuring the stability of the connection and preventing the set screw 500 from damaging the surface of the part.

[0042] Both the first fixing component 220 and the second fixing component 320 include an integrally connected screw 321 and a driving component 322. The driving component 322 is located on the outside of the screw 321 to drive the screw 321 to rotate. This design allows operators to easily drive the screw 321 to rotate through the driving component 322, enabling quick connection and disassembly with the steel arch frame unit and improving the convenience of operation.

[0043] When using this utility model, please refer to... Figure 4 On the outside of the tunnel, the first fixing structure 200 is first fixedly connected to one unit of the steel arch frame, and then the second fixing structure 300 is used to fix it to another adjacent unit. The second connecting piece 600 and the third connecting piece 700 are adjusted to align the two adjacent units to be connected. Then the entire steel arch frame is transported to the tunnel for installation. During installation, all the folded connecting frames 100 are opened, and a complete steel arch frame is connected. Then the units are installed and connected.

[0044] It is understood that the above description is merely exemplary and the embodiments of this application do not limit the scope of the application.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A tunnel steel arch installation aid, characterized in that, The utility model provides a kind of steel arch installation auxiliary device, including connecting frame body (100), the connecting frame body (100) includes at least two mutually articulated support bars (110), so that connecting frame body (100) can be folded; First fixed structure (200) and second fixed structure (300) are respectively installed at both ends of the connecting frame body (100), and the first fixed structure (200) and the second fixed structure (300) are respectively used for detachable connection with two units adjacent to the steel arch; When working, a plurality of tunnel steel arch installation aids can be used to assemble the steel arch into a whole before installation.

2. The tunnel steel arch installation aid of claim 1, wherein, The first fixed structure (200) includes a first connecting groove (210) and a first fixing component (220), the first connecting groove (210) is connected with the connecting frame body (100) in rotation around the vertical axis direction of the connecting frame body (100), and the first fixing component (220) is threadedly connected with the first connecting groove (210) through the side wall of the first connecting groove (210) body.

3. The tunnel steel arch installation aid of claim 2, wherein, One end of the connecting frame body (100) is fixedly connected with a connecting rod (120) along the direction perpendicular to the axial extension direction of the connecting frame body (100), and the first connecting groove (210) and the connecting rod (120) are connected by a first rotating connecting piece (400).

4. The tunnel steel arch installation aid of claim 3, wherein, The first rotating connecting piece (400) includes a coaxially arranged first inner ring (410) and a first outer ring (420), the first inner ring (410) is fixedly connected with the connecting rod (120), and the first outer ring (420) is sleeved outside the first inner ring (410) and is rotatably connected with the first inner ring (410); A jam nut (500) is radially threadedly connected through the first outer ring (420), and the jam nut (500) can compress the first inner ring (410) to limit the rotation of the first outer ring (420) of the first rotating connecting piece (400) relative to the first inner ring (410).

5. The tunnel steel arch installation aid of claim 2, wherein, The second fixed structure (300) includes a second connecting groove (310) and a second fixing component (320), the second connecting groove (310) is rotatably connected with the connecting frame body (100), and the second fixing component (320) is threadedly connected with the second connecting groove (310) through the side wall of the second connecting groove (310) body.

6. The tunnel steel arch installation aid of claim 5, wherein, The end of the connecting frame body (100) away from the first fixed structure (200) is provided with a second connecting piece (600), the second connecting piece (600) can rotate around the axial direction of the connecting frame body (100), a third connecting piece (700) rotatable around the direction perpendicular to the axis of the second connecting piece (600) is fixedly connected outside the second connecting piece (600), and the second connecting groove (310) is fixedly connected with the third connecting piece (700).

7. The tunnel steel arch installation aid of claim 6, wherein, The second connecting piece (600) comprises coaxially arranged second inner ring (610) and second outer ring (620), the second inner ring (610) is fixedly connected with the connecting frame body (100), the second outer ring (620) is sleeved outside the second inner ring (610) and is rotationally connected with the second inner ring (610); the second outer ring (620) is radially screwed with a clamping screw (500) penetrating through, and the clamping screw (500) can press the second inner ring (610) to limit the rotation of the second outer ring (620).

8. The tunnel steel arch installation aid of claim 7, wherein, The third connecting piece (700) comprises coaxially arranged third inner ring (710) and third outer ring (720), the third inner ring (710) is fixedly connected with the second outer ring (620), the third outer ring (720) is sleeved outside the third inner ring (710) and is rotationally connected with the third inner ring (710); the third outer ring (720) is radially screwed with a clamping screw (500) penetrating through, and the clamping screw (500) can press the third inner ring (710) to limit the rotation of the third outer ring (720) relative to the third inner ring (710).

9. A tunnel steel arch installation aid according to claim 4 or 7 or 8, characterised in that, The bottom end of all the clamping screws (500) is fixedly connected with a soft elastic pressing pad (510).

10. The tunnel steel arch installation aid of claim 5, wherein, The first fixed component (220) and the second fixed component (320) each comprise a screw rod (321) and a driving piece (322) integrally connected, the driving piece (322) is arranged outside the screw rod (321) to drive the screw rod (321) to rotate.

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