Foldable laser frame adjusting device

Abstract

The utility model discloses a foldable laser frame adjusting device which comprises a vertical frame and a transverse frame, the ends of the vertical frame and the transverse frame are connected in a hinged mode, the upper end of the vertical frame is connected with a first U-shaped frame in a hinged mode, a transversely-arranged connecting plate is fixedly connected to the upper portion of the middle of the first U-shaped frame, and a through hole is formed in the outer side of the connecting plate and used for being fixed to the lower end of a top plate anchor rod through a nut. The free end of the transverse frame is hinged to a second U-shaped frame, the middle of the second U-shaped frame is perpendicularly and fixedly connected with a fixing bolt, the fixing bolt is matched with a nut to be fixedly connected with a laser frame, the vertical frame and the transverse frame are each composed of two long-strip-shaped plates which are spaced by a certain distance, through holes are formed in the ends of the long-strip-shaped plates, and hinge shafts with damping are arranged in the through holes. The device is reasonable in design, compact in structure, flexible in adjustment, convenient to use and carry and not prone to damage, the laser frame does not need to be fixed to a certain anchor rod, the angle and the position are convenient to adjust, and the positioning efficiency and precision of the laser frame are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of underground tunneling, and specifically relates to a foldable laser frame adjustment device. Background Technology

[0002] In underground coal mine tunneling, laser pointing devices are typically used to guide the tunneling operation to ensure the accuracy and straightness of the tunneling direction. Currently, the laser frame structure widely used in our mine is usually a cross-shaped fixing frame composed of two anchor bolts, which fixes the laser to the top of the tunnel for orientation. However, due to the complex morphology of the surrounding rock in the tunnel, the installation position of the top anchor bolts is restricted, and the installation direction of the anchor bolts often has angular deviations, causing the laser frame structure to tilt, thus affecting the laser's irradiation angle and directional accuracy. Therefore, there is an urgent need for a laser frame adjustment device that is simple in structure, easy to adjust, has good stability, and is suitable for the complex underground environment. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a foldable laser frame adjustment device.

[0004] The technical solution adopted by this utility model is a foldable laser frame adjustment device, including a vertical frame and a horizontal frame hinged at the ends. The upper end of the vertical frame is hinged to a first U-shaped frame. A horizontally arranged connecting plate is fixedly connected to the upper middle part of the first U-shaped frame. The outer side of the connecting plate is provided with a through hole for fixing to the lower end of the top plate anchor rod by a nut. The free end of the horizontal frame is hinged to a second U-shaped frame. A fixing bolt is vertically fixed to the middle part of the second U-shaped frame. The fixing bolt and the nut fix the laser frame. Both the vertical frame and the horizontal frame are composed of two long strips spaced at a certain distance. The ends of the long strips are provided with through holes, and the through holes are provided with damped hinge shafts.

[0005] Furthermore, the hinge shaft uses a screw, with a nut screwed to the end of the screw, and a spring sleeved in the middle of the screw to abut against the inner side of the two long strips.

[0006] Furthermore, the two long strips on both sides have through holes at positions away from the ends, and screws are installed in the through holes. Nuts are screwed to both ends of the screws to abut against the inner and outer sides of the two long strips on both sides.

[0007] Furthermore, both the first and second U-shaped frames are made by bending strip steel plates.

[0008] Furthermore, the laser frame includes an upper U-shaped channel steel bracket and a lower mounting frame consisting of two parallel vertical plates, with through holes for connecting fixing bolts.

[0009] The foldable laser frame adjustment device provided by this utility model has the following beneficial effects:

[0010] 1. Flexible angle adjustment improves laser pointing accuracy. Through the hinged structure of the vertical and horizontal frames, combined with the damping spring mechanism and multi-point bolt fixing design, the tilt angle and orientation of the laser can be easily adjusted during use, solving the problem of laser deviation caused by different anchor bolt angles, and significantly improving laser centering accuracy and construction efficiency.

[0011] 2. The structure is foldable, making it easy to carry and store. This device adopts a foldable structure, with the vertical frame and the horizontal frame connected by hinges, which makes it easy to fold and store quickly when not in use. It occupies little space and is easy to carry, making it particularly suitable for underground mobile construction conditions.

[0012] 3. Easy to install and highly adaptable. The device connects to the top plate anchor rods through a U-shaped frame and bolts, without the need to be fixed to a specific anchor rod. It can adapt to various installation angles and position requirements. The installation process is quick and easy to operate, greatly reducing manual debugging time and labor intensity.

[0013] 4. High stability and safe and reliable use: The device adopts a screw + spring structure to form a damping adjustment, which can effectively prevent the laser frame from shaking during the adjustment process, improve stability, ensure the continuous stability of laser projection during construction, effectively reduce the frequency of adjustment, and ensure operational safety.

[0014] 5. The material is versatile and the manufacturing cost is low. The main components of this device are made of common materials such as steel strips and standard screws. The manufacturing process is simple, the parts are easy to obtain, maintenance and replacement are convenient, and the device is economical and easy to promote. It is suitable for widespread use in various mine tunneling projects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 This is a side view of the present invention.

[0018] In the diagram: 1. Vertical frame; 2. Horizontal frame; 3. First U-shaped frame; 4. Connecting plate; 5. Second U-shaped frame; 6. Fixing bolt; 7. Laser frame; 8. Hinge shaft; 9. Spring. Detailed Implementation

[0019] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a foldable laser frame adjustment device of this utility model.

[0020] like Figures 1-3As shown, a foldable laser frame adjustment device includes a vertical frame 1 and a horizontal frame 2 connected at their ends. The upper end of the vertical frame 1 is hinged to a first U-shaped frame 3. A horizontally arranged connecting plate 4 is fixedly connected to the upper middle part of the first U-shaped frame 3. The outer side of the connecting plate 4 is provided with a through hole for fixing to the lower end of the top plate anchor rod by a nut. The free end of the horizontal frame 2 is hinged to a second U-shaped frame 5. The middle part of the second U-shaped frame 5 is vertically fixed to a fixing bolt 6. The fixing bolt 6 is fixed to the laser frame 7 with a nut. Both the vertical frame 1 and the horizontal frame 2 are composed of two long strips spaced at a certain distance. The ends of the long strips are provided with through holes, and the through holes are provided with a damped hinge shaft 8.

[0021] In this embodiment, the vertical frame 1 is cut from two 600mm long flat iron pieces, and the horizontal frame 2 is cut from two 400mm long flat iron pieces. The vertical frame 1 and the horizontal frame 2 serve as load-bearing rods. A hinge shaft 8 is installed at the rotating part as a rotation support point. The hinge shaft 8 is a screw rod, with a nut screwed to the end of the screw rod. A high-strength spring 10 is sleeved in the middle of the screw rod, abutting against the inner side of the two long strip plates. The two long strip plates have through holes at positions away from the ends, and screw rods are installed in the through holes. Nuts are screwed to both ends of the screw rods, abutting against the inner and outer sides of the two long strip plates.

[0022] Both the first U-shaped frame 3 and the second U-shaped frame 5 are made of bent strip steel plates and serve as rotational supports. A φ18 fixing bolt 6 is welded to the second U-shaped frame 5 to fix the laser frame 7. The laser frame 7 includes an upper U-shaped channel steel bracket and a lower mounting frame composed of two parallel vertical plates. The mounting frame is provided with through holes for connecting the fixing bolt 6.

[0023] This utility model is reasonably designed, compact in structure, flexible in adjustment, easy to use, portable, and not easily damaged. The laser frame does not need to be fixed to a certain anchor rod, making it easy to adjust the angle and position. It not only improves the efficiency and accuracy of laser frame positioning, but also reduces the labor intensity and operational risks of construction workers. It has good practical value and promotion prospects.

[0024] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A foldable laser stand adjustment device, characterized in that, The vertical frame (1) and the horizontal frame (2) are connected by the end hinge connection, the upper end of the vertical frame (1) is connected with the first U-shaped frame (3) by the hinge connection, the middle part of the first U-shaped frame (3) is fixedly connected with the horizontally arranged connecting plate (4) on the upper side, the outer side of the connecting plate (4) is provided with a through hole, the through hole is used for being fixed at the lower end of the roof anchor rod through a nut, the free end of the horizontal frame (2) is connected with the second U-shaped frame (5) by the hinge connection, the middle part of the second U-shaped frame (5) is fixedly connected with the fixed bolt (6) vertically, the fixed bolt (6) is fixedly connected with the laser frame (7) by cooperating with a nut, the vertical frame (1) and the horizontal frame (2) are both composed of two long strip plates which are spaced apart by a certain distance, the end of the long strip plate is provided with a through hole, the through hole is provided with the hinge shaft (8) with damping.

2. The foldable laser stand adjustment device of claim 1, wherein, The hinge shaft (8) is a screw rod, the end of the screw rod is screwed with a nut, the middle part of the screw rod is sleeved with the spring (9) which abuts against the inner side of the two long strip plates.

3. The foldable laser stand adjustment device of claim 1 or 2, wherein, The two long strip plates are provided with a through hole at the position far from the end, a screw rod is arranged in the through hole, and the two ends of the screw rod are screwed with nuts which abut against the inner and outer sides of the two long strip plates.

4. The foldable laser stand adjustment device of claim 1, wherein, The first U-shaped frame (3) and the second U-shaped frame (5) are both made of a strip-shaped steel plate which is bent.

5. The foldable laser stand adjustment device of claim 1, wherein, The laser frame (7) comprises a U-shaped channel steel bracket on the upper part and a mounting frame which is composed of two parallel vertical plates, and the mounting frame is provided with a through hole for connecting the fixed bolt (6).

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