Caliper guide wheel

Abstract

The utility model discloses a caliper guide wheel, which comprises a mounting seat, an inner caliper and an outer caliper, the inner caliper and the outer caliper are rotatably arranged on the mounting seat through a fixed shaft, a guide wheel is rotatably arranged at the lower end of the mounting seat, grooves are formed in the upper ends of the opposite side surfaces of the inner caliper and the outer caliper, and the guide wheel is arranged in the grooves. The inner calipers and the outer calipers are connected through locking pieces. The caliper guide wheel can be clamped on the wing plate at the end part of the vertical arch frame on the upper side to be used as a hoisting point of hoisting equipment, so that a hoisting steel wire rope passes through the guide wheel to hoist the vertical arch frame on the lower side to a position close to an installation position, the workload of workers can be reduced, the working efficiency is improved, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, and particularly relates to a caliper guide wheel. Background Art

[0002] Tunnel engineering refers to a building constructed underground, underwater or in a mountain body, and is used to lay railways or build roads for motor vehicles to pass through. According to its location, it can be divided into three categories: mountain tunnel engineering, underwater tunnel engineering and urban tunnel engineering.

[0003] Tunnel arch erection is an important technical measure used in tunnel engineering, especially in the initial support stage of the tunnel. It mainly includes the use of circumferential steel supports, which can be special circumferential I-beams or other section steels. At present, when using a segmented arch erection for support, the upper arch erection is first installed by an arch erection trolley, and then the lower arch erection is installed. Since the arch erection is an arc-shaped I-beam structure, there are no suitable lifting points on the upper arch erection, resulting in that the hoisting mechanism cannot directly hoist the lower arch erection in place, and manual lifting and transfer of the arch erection are required, with low work efficiency and inconvenient operation. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a caliper guide wheel, which can be clamped to the wing plate at the end of the upper arch erection and used as a lifting point for lifting equipment, so that the hoisting wire rope passes through the guide wheel to hoist the lower arch erection to a position close to the installation position, which can reduce the workload of workers, improve work efficiency and is convenient to operate, and can effectively solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical solution: a caliper guide wheel, comprising a mounting seat, an inner caliper and an outer caliper. The inner caliper and the outer caliper are both rotatably arranged on the mounting seat through fixed shafts. A guide wheel is rotatably arranged at the lower end of the mounting seat. Grooves are formed at the upper ends of the opposite sides of the inner caliper and the outer caliper. The inner caliper and the outer caliper are connected by a locking member.

[0006] As a preferred technical solution of the utility model, a bolt with a nut is installed at the lower end of the side surface of the mounting seat, and the guide wheel is rotatably arranged on the bolt.

[0007] As a preferred technical solution of the utility model, the locking member includes a rotating shaft rotatably arranged in the middle of the side surface of the inner caliper and a clamping shaft rotatably arranged in the middle of the side surface of the outer caliper. A screw rod is horizontally rotatably arranged at the front end of the rotating shaft, and a clamping groove capable of clamping the screw rod is arranged at the front end of the clamping shaft.

[0008] As a preferred technical solution of the utility model, a positioning nut is threadedly connected to the side surface of the screw rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The caliper guide wheel of the utility model example can be clamped to the wing plate at the end of the upper side vertical arch frame and used as a lifting point of the lifting equipment, so that the hoisting steel wire rope passes through the guide wheel to hoist the lower side vertical arch frame to a position close to the installation, which can reduce the workload of workers, improve work efficiency and is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the utility model;

[0012] Figure 2 is Figure 1 a schematic cross-sectional structure diagram of the left view;

[0013] Figure 3 is a schematic top view structure diagram of the utility model;

[0014] Figure 4 is a schematic diagram of the caliper guide wheel installed on the I-beam.

[0015] In the figure: 1 mounting seat, 2 inner caliper, 21 rotating shaft, 3 outer caliper, 31 clamping shaft, 4 screw, 41 positioning nut, 5 guide wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-4 , the present utility model provides a technical solution: a caliper guide wheel, including a mounting seat 1, an inner caliper 2 and an outer caliper 3. The inner caliper 2 and the outer caliper 3 are both rotatably arranged on the mounting seat 1 through a fixed shaft. A guide wheel 5 is rotatably arranged at the lower end of the mounting seat 1. Grooves are opened at the upper ends of the opposite sides of the inner caliper 2 and the outer caliper 3. The inner caliper 2 and the outer caliper 3 are connected by a locking member, and the inner caliper 2 and the outer caliper 3 are clamped on the I-beam and locked by the locking member.

[0018] Furthermore, a bolt with a nut is installed at the lower end of the side surface of the mounting seat 1, and the guide wheel 5 is rotatably arranged on the bolt.

[0019] Further, the locking member includes a rotating shaft 21 rotatably disposed in the middle of the side surface of the inner caliper 2 and a clamping shaft 31 rotatably disposed in the middle of the side surface of the outer caliper 3. A screw rod 4 is horizontally rotatably disposed at the front end of the rotating shaft 21. A clamping groove capable of clamping the screw rod 4 is provided at the front end of the clamping shaft 31. A positioning nut 41 is threadedly connected to the side surface of the screw rod 4. Rotate the screw rod 4 to make it snap into the clamping groove of the clamping shaft 31, and rotate the positioning nut 41. During the rotation of the positioning nut 41, it moves along the screw rod 4 to limit and fix the distance between the rotating shaft 21 and the clamping shaft 31, thereby restricting the inner caliper 2 and the outer caliper 3.

[0020] The utility model can be clamped to the wing plate at the end of the upper vertical arch frame and used as a lifting point of the lifting equipment, so that the hoisting steel wire rope passes through the guide wheel 5 to hoist the lower vertical arch frame to a position close to the installation, which can reduce the workload of workers, improve work efficiency and is convenient to operate.

[0021] The parts not disclosed in the utility model are all prior arts, and their specific structures, materials and working principles will not be elaborated. Although the embodiments of the utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A caliper guide wheel, comprising a mounting seat (1), an inner caliper (2) and an outer caliper (3), characterized in that: The inner caliper (2) and the outer caliper (3) are both rotatably arranged on the mounting seat (1) via a fixed axis, a guide wheel (5) is rotatably arranged at the lower end of the mounting seat (1), grooves are provided at the upper ends of the opposite sides of the inner caliper (2) and the outer caliper (3), and the inner caliper (2) and the outer caliper (3) are connected via a locking member.

2. The caliper guide wheel according to claim 1, characterized in that: A bolt with a nut is mounted on the lower end of the side surface of the mounting seat (1), and the guide wheel (5) is rotatably mounted on the bolt.

3. The caliper guide wheel according to claim 1, characterized in that: The locking member comprises a rotating shaft (21) rotatably arranged in the middle of the side surface of the inner caliper (2) and a clamping shaft (31) rotatably arranged in the middle of the side surface of the outer caliper (3), a screw rod (4) being rotatably arranged at the front end of the rotating shaft (21), and a clamping groove capable of clamping the screw rod (4) is provided at the front end of the clamping shaft (31).

4. The caliper guide wheel according to claim 3, characterized in that: A positioning nut (41) is threadedly connected to the side surface of the screw rod (4).

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