Adjustable metal support

Abstract

The utility model discloses an adjustable metal support which comprises two supporting plates, fixed plates fixed at the bottoms of the two supporting plates and fixed holes formed in the four corners of the outer walls of the tops of the two fixed plates, and further comprises grooves formed in the outer walls of the tops of the two fixed plates, and movable plates are connected to the inner walls of the two grooves in a sliding mode. The fixing plate can be fixed to the ground of a mine through the bolts, the support is erected in the mine, the top plate can be pushed to ascend by a certain height through the lifting assembly, the top of the movable assembly makes contact with the top of the mine, and the movable assembly can move up and down on the installation pipe, so that the device is convenient to adapt to the uneven surface of the top of the mine; the supporting assembly can be driven to ascend through operation of the driving assembly, so that the supporting assembly abuts against the bottom of the movable assembly, the height of the movable assembly is fixed, then the top of the mine hole is supported, the device can adapt to the uneven top face of the mine hole, and the better supporting effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of brackets, in particular to an adjustable metal bracket. Background Technique

[0002] During the process of excavating a mine tunnel, metal brackets are often used to support the mine cave to prevent the mine cave from collapsing. The top structures of the current brackets are all fixed. Since the top of the excavated mine tunnel is not very neat, when there is a downward convex part at the top of the mine cave, the bracket can only support the convex part and cannot play a good supporting role for the top of the mine cave. Content of the Utility Model

[0003] The purpose of the utility model is to provide an adjustable metal bracket to solve the problem that the bracket in the above background technique can only support the downward convex part at the top of the mine cave and cannot play a good supporting role for the top of the mine cave.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an adjustable metal bracket, including: two support plates, a fixing plate fixed to the bottoms of the two support plates, and fixing holes opened at the four corners of the outer walls of the tops of the two fixing plates. It also includes: grooves opened on the outer walls of the tops of the two fixing plates, movable plates are slidably connected to the inner walls of the two grooves, and the tops of the two movable plates are fixed with the same top plate. A plurality of equally spaced mounting tubes are inserted into the outer wall of the top plate, and a lifting assembly is provided on the outer walls of the opposite sides of the two support plates. A controller is installed on the outer wall of one side of one of the support plates, and limiting grooves are opened on the inner walls of both sides of the mounting tube. A movable assembly is installed on the outer wall of the top of the mounting tube, and a driving assembly is installed on the outer wall of the bottom of the mounting tube. A supporting assembly is screwed on the driving assembly.

[0005] The lifting assembly includes a cross plate, electric push rods installed at both ends of the outer wall of the top of the cross plate, and triangular plates fixed to both ends of the outer wall of the bottom of the cross plate.

[0006] The movable assembly includes a movable rod, a contact plate fixed to the top of the movable rod, and a spring sleeved on the outer wall of the movable rod. The bottom of the spring is fixedly connected to the top of the mounting tube.

[0007] The driving assembly includes a motor, mounting plates fixed to both outer walls of the motor, and a threaded rod connected to the output shaft of the motor. The threaded rod is connected to the inner wall of the bottom of the mounting tube through a bearing.

[0008] The supporting assembly includes a moving plate, a threaded through hole opened on the outer wall of the top of the moving plate, a support frame fixed to the outer wall of the top of the moving plate, and a contact sensor embedded on the outer wall of the top of the support frame.

[0009] The moving plate is screwed on the threaded rod.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] An adjustable metal bracket of the present utility model can fix the fixed plate on the ground of the mine tunnel through bolts, stand the bracket in the mine tunnel, and can push the top plate to rise a certain height through the lifting assembly, so that the top of the movable assembly contacts the top of the mine tunnel. Since the movable assembly can move up and down on the installation pipe, it is convenient to adapt to the uneven surface of the top of the mine tunnel. After adaptation, the driving assembly can be operated to drive the support assembly to rise, so that the support assembly abuts against the bottom of the movable assembly to fix the height of the movable assembly, and thus play a supporting role on the top of the mine tunnel. It can adapt to the uneven top surface of the mine tunnel and can play a better supporting role. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the overall structure diagram of the present utility model;

[0013] Figure 2 is the sectional structure diagram of the installation pipe of the present utility model;

[0014] Figure 3 is the structure diagram of the lifting assembly of the present utility model;

[0015] Figure 4 is the structure diagram of the movable assembly of the present utility model;

[0016] Figure 5 is the structure diagram of the driving assembly of the present utility model;

[0017] Figure 6 is the structure diagram of the support assembly of the present utility model.

[0018] In the figure: 1, support plate; 2, movable plate; 3, fixed plate; 4, top plate; 5, installation pipe; 6, lifting assembly; 601, cross plate; 602, electric push rod; 603, triangular plate; 7, controller; 8, limit groove; 9, movable assembly; 901, movable rod; 902, contact plate; 903, spring; 10, driving assembly; 1001, motor; 1002, mounting plate; 1003, threaded rod; 11, support assembly; 1101, moving plate; 1102, threaded through hole; 1103, support frame; 1104, contact sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] 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 of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figure 1-6 , a kind of adjustable metal bracket provided by the present utility model includes: two support plates 1, a fixing plate 3 fixed to the bottoms of the two support plates 1, and fixing holes opened at the four corners of the outer walls of the tops of the two fixing plates 3. It further includes: grooves opened on the outer walls of the tops of the two fixing plates 3, both inner walls of the two grooves are slidably connected with movable plates 2, and the tops of the two movable plates 2 are fixed with the same top plate 4. A plurality of equally spaced installation pipes 5 are inserted into the outer wall of the top of the top plate 4. And a lifting assembly 6 is provided on the outer walls of the opposite sides of the two support plates 1. A controller 7 is installed on the outer wall of one side of one of the support plates 1. Limiting grooves 8 are opened on both inner walls of the installation pipe 5. A movable assembly 9 is installed on the outer wall of the top of the installation pipe 5. And a driving assembly 10 is installed on the outer wall of the bottom of the installation pipe 5. A supporting assembly 11 is screwed on the driving assembly 10.

[0021] It should be noted here that: the fixing plate 3 can be fixed to the mine tunnel floor through bolts, and the bracket is erected in the mine tunnel. The lifting assembly 6 can be used to push the top plate 4 to rise a certain height, so that the top of the movable assembly 9 contacts the top of the mine tunnel. Since the movable assembly 9 can move up and down on the installation pipe 5, it is convenient to adapt to the uneven surface of the mine tunnel top. After adaptation, the driving assembly 10 can be operated to drive the supporting assembly 11 to rise, so that the supporting assembly 11 abuts against the bottom of the movable assembly 9 to fix the height of the movable assembly 9, thereby playing a supporting role on the top of the mine tunnel, adapting to the uneven top surface of the mine tunnel, and being able to play a better supporting role.

[0022] In a preferred embodiment, the lifting assembly 6 includes a cross plate 601, electric push rods 602 installed at both ends of the outer wall of the top of the cross plate 601, and triangular plates 603 fixed to both ends of the outer wall of the bottom of the cross plate 601.

[0023] It should be noted here that: the two electric push rods 602 can push the cross plate 601 to rise together.

[0024] In a preferred embodiment, the movable assembly 9 includes a movable rod 901, a contact plate 902 fixed to the top of the movable rod 901, and a spring 903 sleeved on the outer wall of the movable rod 901, and the bottom of the spring 903 is fixedly connected to the top of the installation pipe 5.

[0025] It should be noted here that the contact plate 902 abuts against the top of the mine tunnel, presses the movable rod 901 into the mounting pipe 5, and compresses the spring 903.

[0026] In a preferred embodiment, the driving assembly 10 includes a motor 1001, mounting plates 1002 fixed to the outer walls on both sides of the motor 1001, and a threaded rod 1003 connected to the output shaft of the motor 1001, and the threaded rod 1003 is connected to the inner wall of the bottom of the mounting pipe 5 through a bearing.

[0027] It should be noted here that the motor 1001 can drive the threaded rod 1003 to rotate, thereby driving the support assembly 11 to rise.

[0028] In a preferred embodiment, the support assembly 11 includes a moving plate 1101, a threaded through hole 1102 opened on the outer wall of the top of the moving plate 1101, a support frame 1103 fixed to the outer wall of the top of the moving plate 1101, and a contact sensor 1104 embedded in the outer wall of the top of the support frame 1103.

[0029] It should be noted here that when the threaded rod 1003 rotates, the moving plate 1101 can rise on the inner wall of the mounting pipe 5, thereby driving the support frame 1103 to rise, so that the support frame 1103 abuts against the bottom of the movable rod 901 to fix the height of the movable rod 901. Through the set contact sensor 1104, when the top of the support frame 1103 abuts against the bottom of the movable rod 901, the contact sensor 1104 contacts the movable rod 901 and transmits a signal to the controller 7, and the controller 7 controls the corresponding motor 1001 to stop rotating.

[0030] Working principle: The fixed plate 3 can be fixed to the ground of the mine tunnel through bolts, and the support is erected in the mine tunnel. The two electric push rods 602 can push the top plate 4 to rise together. The contact plate 902 abuts against the top of the mine tunnel, presses the movable rod 901 into the mounting pipe 5, and compresses the spring 903. Since the movable rod 901 can move up and down on the mounting pipe 5, it is convenient to adapt to the uneven surface of the top of the mine tunnel. After adaptation, the motor 1001 can drive the threaded rod 1003 to rotate, so that the moving plate 1101 can rise on the inner wall of the mounting pipe 5, thereby driving the support frame 1103 to rise, so that the support frame 1103 abuts against the bottom of the movable rod 901 to fix the height of the movable rod 901. Through the set contact sensor 1104, when the top of the support frame 1103 abuts against the bottom of the movable rod 901, the contact sensor 1104 contacts the movable rod 901 and transmits a signal to the controller 7, and the controller 7 controls the corresponding motor 1001 to stop rotating. By fixing the height of the movable rod 901, the top of the mine tunnel can be supported, adapting to the uneven top surface of the mine tunnel and providing a better support effect.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An adjustable metal bracket, comprising: Two support plates (1), a fixing plate (3) fixed to the bottoms of the two support plates (1), and fixing holes formed at the four corners of the top outer wall of the two fixing plates (3); It is characterized in that it further comprises: grooves formed on the top outer walls of the two fixing plates (3), both inner walls of the two grooves are slidably connected with movable plates (2), and the tops of the two movable plates (2) are fixed with the same top plate (4), a plurality of equidistantly distributed mounting tubes (5) are inserted into the top outer wall of the top plate (4), and a lifting assembly (6) is arranged on the opposite outer walls of the two support plates (1), a controller (7) is installed on the outer wall of one side of one of the support plates (1), and limiting grooves (8) are formed on both inner walls of the mounting tube (5), a movable assembly (9) is installed on the top outer wall of the mounting tube (5), and a driving assembly (10) is installed on the bottom outer wall of the mounting tube (5), and a support assembly (11) is screwed onto the driving assembly (10).

2. The adjustable metal bracket according to claim 1, wherein: The lifting assembly (6) comprises a cross plate (601), electric push rods (602) installed at both ends of the top outer wall of the cross plate (601), and triangular plates (603) fixed to both ends of the bottom outer wall of the cross plate (601).

3. The adjustable metal bracket according to claim 1, characterized in that: The movable assembly (9) comprises a movable rod (901), a contact plate (902) fixed to the top of the movable rod (901), and a spring (903) sleeved on the outer wall of the movable rod (901), and the bottom of the spring (903) is fixedly connected to the top of the mounting tube (5).

4. The adjustable metal bracket according to claim 1, wherein: The driving assembly (10) comprises a motor (1001), mounting plates (1002) fixed to both outer walls of the motor (1001), and a threaded rod (1003) connected to the output shaft of the motor (1001), and the threaded rod (1003) is connected to the bottom inner wall of the mounting tube (5) through a bearing.

5. The adjustable metal bracket according to claim 4, wherein: The support assembly (11) comprises a moving plate (1101), a threaded through hole (1102) formed on the top outer wall of the moving plate (1101), a support frame (1103) fixed to the top outer wall of the moving plate (1101), and a contact sensor (1104) embedded on the top outer wall of the support frame (1103).

6. The adjustable metal bracket according to claim 5, wherein: The moving plate (1101) is screwed onto the threaded rod (1003).

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