Tunnel arch frame laser positioning device

Abstract

The utility model relates to the technical field of lagging jack construction, in particular to a tunnel lagging jack laser positioning device which comprises a fixing mechanism, one end of the fixing mechanism is connected with a steel lagging jack, the other end of the fixing mechanism is connected with a laser emitting head through a universal connecting piece, and the output end of the laser emitting head faces a pay-off point of a tunnel face. The laser emission head is electrically connected with the power supply assembly through a connecting line. The device is accurate in positioning and easy to operate, the laser emission head is used for replacing a stay wire, the situation that the stay wire is touched in the adjusting process of the steel arch is avoided, an operator can adjust the steel arch conveniently, and the erecting precision of the arch is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of arch construction, and particularly relates to a laser positioning device for tunnel arches. Background Art

[0002] At present, in the design of domestic composite lining tunnels, steel arches are often used, which are suitable for strong support of soft surrounding rocks to ensure their stability.

[0003] Currently, the steel arches are usually positioned and installed by means of wire pulling. During the installation process of the steel arches, the wire is prone to displacement, which is not conducive to the construction personnel to install and adjust the steel arches. It is difficult to control the installation accuracy of the steel arches. In terms of the connection, verticality, elevation control, and lateral deviation of the steel arches, the quality requirements are often not met, which has a greater impact on the stress structure of the steel arches and is likely to result in poor flatness of the shotcrete. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a laser positioning device for tunnel arches to overcome the defects in the above background art.

[0005] The laser positioning device for tunnel arches includes a fixing mechanism. One end of the fixing mechanism is connected to the steel arch, and the other end is connected to the laser emitter through a universal joint. The output end of the laser emitter faces the setting-out point of the heading face, and the laser emitter is electrically connected to the power supply assembly through a connecting wire.

[0006] As a preference of the laser positioning device for tunnel arches in the present utility model, a plurality of the laser positioning devices are provided and arranged around the inner arc or web of the steel arch.

[0007] As a preference of the laser positioning device for tunnel arches in the present utility model, the fixing mechanism includes a magnet and a connecting seat. One end of the magnet is connected to the steel arch, and the other end is connected to the connecting seat.

[0008] As a preference of the laser positioning device for tunnel arches in the present utility model, the universal joint includes a spherical joint. A pair of the spherical joints are symmetrically arranged at intervals. The spherical heads of the pair of spherical joints are connected to each other through a clamping plate. A rotating window is provided at the connection between the clamping plate and the spherical head. A fixing seat is provided at one end of one of the spherical joints, and a fixing frame is provided at one end of the other spherical joint.

[0009] As a preference of the laser positioning device for tunnel arches in the present utility model, the laser emitter is provided with an adjustment knob.

[0010] As a preference of the laser positioning device for tunnel arch frames in the present utility model, the power supply assembly includes a magnetic base and a power bank. The magnetic base is connected to the steel arch frame and is arranged on one side of the connecting seat, and the power bank is detachably connected to the magnetic base.

[0011] Advantages of the present utility model:

[0012] The present utility model has accurate positioning and simple operation. It uses a laser emitting head to replace the wire rope, avoiding the situation of touching the wire rope during the adjustment of the steel arch frame, which is beneficial for the operators to adjust the steel arch frame and greatly improves the erection accuracy of the arch frame. Description of the drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of the laser positioning device in the embodiment of the present application;

[0015] Figure 2 It is one of the schematic structural diagrams of the universal joint in the embodiment of the present application;

[0016] Figure 3 It is the second schematic structural diagram of the universal joint in the embodiment of the present application;

[0017] Explanation of the reference numerals in the drawings:

[0018] 1. Fixing mechanism; 11. Magnet; 12. Connecting seat;

[0019] 2. Universal joint; 21. Spherical joint; 22. Clamp plate; 23. Rotating window; 24. Fixed seat; 25. Fixed frame;

[0020] 3. Laser emitting head;

[0021] 4. Connecting wire;

[0022] 5. Power supply assembly; 51. Magnetic base; 52. Power bank. Detailed implementation manners

[0023] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the specific embodiments of the present application in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0026] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0028] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0029] Embodiment

[0030] This embodiment provides a laser positioning device for tunnel arch supports, which is used to position the steel arch supports during the installation process, as Figure 1 shown, including a fixing mechanism 1, a universal connecting piece 2, a laser emitting head 3, a connecting wire 4 and a power supply component 5. One end of the fixing mechanism 1 is connected to the installed steel arch support, and the other end is used to connect the laser emitting head 3. The universal connecting piece 2 is arranged between the fixing mechanism 1 and the laser emitting head 3 and is used to adjust the position of the laser emitting head 3. The power supply component 5 is electrically connected to the laser emitting head 3 through the connecting wire 4 to supply power to it. A plurality of laser positioning devices are arranged around the inner arc or web of the steel arch support, and the output end of the laser emitting head 3 faces the setting-out point of the heading face to position the next steel arch support to be installed.

[0031] The fixing mechanism 1 includes a magnet 11 and a connecting seat 12. One end of the magnet is connected to the steel arch support, and the other end is connected to the connecting seat 12. Using the magnet 11 to fix the connecting seat 12 is convenient and fast.

[0032] As Figure 2 and Figure 3 shown, the universal connecting piece 2 includes spherical connecting pieces 21. One end of each spherical connecting piece 21 is provided with a spherical head. A pair of the spherical connecting pieces 21 are symmetrically arranged at intervals. The pair of spherical heads are close to each other. The pair of spherical heads are connected to each other through a clamping plate 22. A rotating window 23 is provided at the connection between the clamping plate 22 and the spherical head. The distance between the clamping plates 22 is adjustable. By adjusting the distance between the clamping plates 22, the spherical head can be fixed or rotated. The other end of one of the spherical connecting pieces 21 is provided with a fixing seat 24 for connecting to the connecting seat 12, and the other end of the other spherical connecting piece 21 is provided with a fixing bracket 25 for fixing the laser emitting head 3.

[0033] In this embodiment, the laser emitting head 3 is provided with an adjustment knob to facilitate adjusting the size of the infrared light spot.

[0034] In this embodiment, the power supply assembly 5 includes a magnetic base 51 and a power bank 52. The magnetic base 51 is connected to the steel arch and is arranged on one side of the connecting seat 12. The power bank 52 is detachably connected to the magnetic base 51. Using the power bank 52 to supply power to the laser emitter 3 is not restricted by the power cord and is convenient for movement.

[0035] During use, the concrete at the connection between the steel arch and the magnet 11 and the magnetic base 51 should be cleaned to avoid displacement or dropping during the use of the above two. When using the universal connector 2, it should be ensured that the clamping plate 22 clamps the spherical connector 21 to avoid laser misalignment.

[0036] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0037] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. Tunnel arch laser positioning device, characterized in that: It includes a fixing mechanism. One end of the fixing mechanism is connected to the steel arch, and the other end is connected to the laser emitter through a universal joint. The output end of the laser emitter faces the setting-out point of the heading face, and the laser emitter is electrically connected to the power supply component through a connecting wire.

2. The tunnel arch support laser positioning device according to claim 1, characterized in that A plurality of the laser positioning devices are provided and are arranged around the inner arc or web of the steel arch.

3. The tunnel arch support laser positioning device according to claim 1, characterized in that, The fixing mechanism includes a magnet and a connecting seat. One end of the magnet is connected to the steel arch, and the other end is connected to the connecting seat.

4. The tunnel arch laser positioning device according to claim 1, characterized in that, The universal joint includes a spherical joint. A pair of the spherical joints are symmetrically arranged at intervals. The spherical heads of the pair of spherical joints are connected to each other through a clamping plate. A rotating window is provided at the connection between the clamping plate and the spherical head. One end of one spherical joint is provided with a fixed seat, and one end of the other spherical joint is provided with a fixed bracket.

5. The tunnel arch laser positioning device according to claim 1, characterized in that, The laser emitter is provided with an adjustment knob.

6. The tunnel arch support laser positioning device according to claim 1, wherein The power supply component includes a magnetic suction base and a power bank. The magnetic suction base is connected to the steel arch and is arranged on one side of the connecting seat. The power bank is detachably connected to the magnetic suction base.

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