Underground mine broken roof supporting device

Abstract

The utility model discloses an underground mine broken roof supporting device, which relates to the technical field of underground mines, and comprises a base assembly, the upper part of the base assembly is in threaded connection with a supporting assembly, the supporting assembly comprises a first supporting pipe and a second supporting pipe, and the second supporting pipe is inserted into the first supporting pipe; according to the supporting device for the broken roof of the underground mine, through the arrangement of the supporting assemblies and the protection assemblies, the problems that when an existing supporting device for the broken roof of the underground mine is used, only the broken roof can be supported generally, the broken roof cannot be disassembled quickly, and the supporting device is not convenient to use are solved. The weight of the top of a supporting structure stacked for a long time is large, risks still exist, and certain limitation exists in use. Or an existing underground mine broken roof supporting device generally has the problems that a supporting structure is fixed, cannot be folded and stored, is inconvenient to transport and assemble and has certain limitation in use.

Description

Technical Field

[0001] The utility model relates to the field of underground mines, in particular to a support device for a broken roof in an underground mine. Background Art

[0002] A broken roof refers to a roof with low rock stratum strength, developed joints and fissures, poor integrity, low self-stabilizing ability, and difficulty in maintenance within the working face control area. A broken roof is extremely prone to leakage-collapse type local roof fall accidents, bringing many adverse factors to safe production. During the construction of underground mine development and preparatory engineering, broken roofs are often encountered. To ensure the safety of roadway engineering construction, roof support is required, but it still has the following drawbacks in actual use:

[0003] At present, when the existing support devices for broken roofs in underground mines are in use, generally they can only support the broken roof and cannot quickly remove it. After long-term accumulation, the weight on the top of the support structure is relatively large, and there is still a risk, so there are certain limitations in use; or when the existing support devices for broken roofs in underground mines are in use, usually the support structure is fixed and cannot be folded and stored, which is inconvenient for transportation and assembly, and there are certain limitations in use. Therefore, it is necessary to improve a support device for a broken roof in an underground mine to solve the above problems. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a support device for a broken roof in an underground mine, which solves the problems raised in the above background art.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A support device for a broken roof in an underground mine includes a base assembly. A support assembly is threadedly connected to the upper part of the base assembly. The support assembly includes a first support pipe and a second support pipe. The second support pipe is inserted and connected inside the first support pipe, and a protection assembly is inserted and connected between the upper parts of the support assembly.

[0006] As a further technical solution of the utility model, the protection assembly includes a fixing strip and a protection net, and the protection net is fixedly connected between the inner surfaces of the two ends of the fixing strip. The middle parts of the two ends of the bottom surface of the fixing strip are fixedly connected with insertion columns.

[0007] As a further technical solution of the utility model, the circumferential surface of the first support pipe is equidistantly penetrated with jacks, and a circular retaining piece is fixedly connected to the lower part of the circumferential surface of the first support pipe.

[0008] As a further technical solution of the utility model, the circumferential surface of one side of the second support pipe is equidistantly penetrated with connection holes, and the number of connection holes is the same as the number of jacks.

[0009] As a further technical solution of the present utility model, the base assembly includes a fixing piece and a fixing hole, and the fixing hole is disposed through the edge of the upper surface of the fixing piece, and a threaded sleeve is fixedly connected to the middle of the upper surface of the fixing piece.

[0010] The present utility model provides an underground mine broken roof support device, which has the following beneficial effects compared with the prior art:

[0011] 1. For the underground mine broken roof support device designed in this way, through the arranged support assembly, it has the effect of unloading the broken roof fragments, and solves the problem that the existing underground mine broken roof support device, when in use, generally can only support the broken roof and cannot quickly unload it. The weight of the long-term accumulated support structure on the top is relatively large, and there is still a risk, and there are certain limitations in use.

[0012] 2. For the underground mine broken roof support device designed in this way, through the arranged protection assembly, it has the effects of being convenient for folding, transportation and assembly, and solves the problem that the existing underground mine broken roof support device, when in use, usually the support structure is fixed and cannot be folded and stored, which is not convenient for transportation and assembly, and there are certain limitations in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an underground mine broken roof support device;

[0014] Figure 2 It is a schematic diagram of the protection component structure of an underground mine broken roof support device;

[0015] Figure 3 It is a schematic diagram of the support component structure of an underground mine broken roof support device;

[0016] Figure 4 It is a schematic diagram of the base component structure of an underground mine broken roof support device.

[0017] In the figure: 1. Base assembly; 11. Fixing piece; 111. Fixing hole; 12. Threaded sleeve; 2. Support assembly; 21. First support tube; 211. Insertion hole; 22. Second support tube; 221. Connection hole; 23. Annular baffle; 3. Protection assembly; 31. Fixing strip; 32. Protection net; 33. Insertion post. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , the present invention provides a technical solution for a support device for a broken roof in an underground mine: including a base assembly 1, a support assembly 2 is threadedly connected to the upper part of the base assembly 1, and the support assembly 2 includes a first support pipe 21 and a second support pipe 22. The second support pipe 22 is inserted and connected inside the first support pipe 21, and a protection assembly 3 is inserted and connected between the upper parts of the support assembly 2; the protection assembly 3 includes a fixing strip 31 and a protection net 32, and the protection net 32 is fixedly connected between the inner surfaces of the two ends of the bottom surface of the fixing strip 31. Two middle parts are fixedly connected with insertion posts 33; the circumferential surface of the first support pipe 21 is equidistantly penetrated with insertion holes 211, and a circular retaining piece 23 is fixedly connected to the lower part of the circumferential surface of the first support pipe 21; the circumferential surface of the second support pipe 22 is equidistantly penetrated with connection holes 221, and the number of connection holes 221 is the same as the number of insertion holes 211; specifically, when it is necessary to adjust the height of the support assembly 2, only need to insert the second support pipe 22 into different depths of the first support pipe 21, then use a knob bolt to insert into the insertion hole 211, and finally tighten it clockwise in the connection hole 221.

[0020] As Figure 4 shown, the base assembly 1 includes a fixing piece 11 and a fixing hole 111, and the fixing hole 111 penetrates through the edge of the upper surface of the fixing piece 11. A threaded sleeve 12 is fixedly connected to the middle of the upper surface of the fixing piece 11; specifically, when it is necessary to connect the support assembly 2 and the base assembly 1, only need to align the bottom end of the first support pipe 21 with the threaded sleeve 12, and then rotate the first support pipe 21 clockwise to connect the two.

[0021] The working principle of the utility model is as follows: When the underground mine crushing roof support device needs to unload the crushed roof, only need to lower the support component 2 at one end of the protection component 3 or raise the support component 2 at one end of the protection component 3, then the whole support device can be tilted. Under the action of gravity, the crushed roof above the protection component 3 can be unloaded, thus avoiding the problem of potential safety hazards caused by the accumulation of too much crushed roof. And when the support device is assembled, first connect the bottom end of the support component 2 to the threaded sleeve 12, then the support component 2 and the base component 1 can be connected. Then insert the plug post 33 in the protection component 3 into the hole at the upper end of the second support tube 22, and the protection component 3 and the support component 2 can be connected, which is convenient for assembly. And the protection net 32 can also be folded, which is also convenient for transportation. It is relatively convenient and practical and worthy of being vigorously promoted.

[0022] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in this field.

Claims

1. A broken roof support device for an underground mine, characterized in that: The invention comprises a base assembly (1), the upper part of the base assembly (1) is threadedly connected to a support assembly (2), and the support assembly (2) comprises a first support tube (21) and a second support tube (22), the second support tube (22) is plug-connected inside the first support tube (21), and a protective assembly (3) is plug-connected between the upper parts of the support assembly (2).

2. The underground mine broken roof support device according to claim 1, characterized in that: The protection assembly (3) comprises a fixing strip (31) and a protection net (32), wherein the protection net (32) is fixedly connected between the inner surfaces of the fixing strip (31), and plug posts (33) are fixedly connected at the middle of both ends of the bottom surface of the fixing strip (31).

3. The underground mine broken roof support device according to claim 1, characterized in that: Insertion holes (211) are arranged at equal distances through the peripheral surface of the first support tube (21), and an annular baffle (23) is fixedly connected to the lower part of the peripheral surface of the first support tube (21).

4. The underground mine broken roof support device according to claim 1, characterized in that: One side surface of the second support tube (22) is provided with connection holes (221) at equal distances, and the number of the connection holes (221) is the same as the number of the insertion holes (211).

5. The underground mine broken roof support device according to claim 1, characterized in that: The base assembly (1) comprises a fixing plate (11) and a fixing hole (111), wherein the fixing hole (111) is arranged through the edge of the upper surface of the fixing plate (11), and a threaded sleeve (12) is fixedly connected to the middle of the upper surface of the fixing plate (11).

Images