Supporting structure capable of effectively controlling top plate and reducing collapse risk of top plate

Abstract

The invention discloses a supporting structure capable of effectively controlling a top plate and reducing the caving risk of the top plate, which comprises a top supporting assembly, the top supporting assembly comprises hydraulic supporting columns and a first supporting plate, the bottom plate and the ground are fixed through bolts, the hydraulic supporting columns are arranged at the upper end of the bottom plate at equal intervals, the hydraulic supporting columns are in a step shape, and the first supporting plate is arranged at the lower end of the bottom plate; a first supporting plate is arranged at the upper ends of the hydraulic supporting columns, fixing frames are arranged at the upper end of the first supporting plate at equal intervals, the first supporting plate and the fixing frames are fixed through bolts, clamping rods are arranged at the lower ends of the fixing frames, and the clamping rods are installed in the first supporting plate in an embedded mode. The supporting structure can only support the top plate of the flat needle, and the supporting structure is difficult to effectively support the top plate when the phenomena of bending, inclination and other unevenness occur, so that the safety problem of equipment in use is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mines, and in particular to a supporting structure for effectively controlling a roof and reducing the risk of roof collapse. Background Art

[0002] During coal mining, it is usually necessary to use support structures to support the roof of the coal seam to prevent the roof from collapsing, thereby improving the stability of the coal mining.

[0003] When the existing support structure is actually used, the support structure can only fit part of the top plate. When the top plate is uneven such as bending and tilting, the support structure is difficult to support the top plate, which increases the phenomenon of top plate collapse. Therefore, it is necessary to provide a support structure that can effectively control the top plate and reduce the risk of top plate collapse, increase the fit between the support structure and the top plate, so as to improve the safety of the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a support structure for effectively controlling the roof and reducing the risk of roof collapse, so as to solve the problem raised in the above-mentioned background technology that the existing support structure can only support flat roofs when actually used. If uneven phenomena such as bending and tilting are encountered, the support structure will find it difficult to effectively support the roof, affecting the safety of the equipment when in use.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a support structure for effectively controlling the roof and reducing the risk of roof collapse, comprising: A top support assembly, the top support assembly includes a hydraulic support column and a first support plate, the bottom plate is fixed to the ground by bolts, the upper end of the bottom plate is equidistantly provided with hydraulic support columns, the hydraulic support columns are stepped, and the upper end of the hydraulic support columns is provided with a first support plate.

[0006] Furthermore, a fixing frame is equidistantly arranged at the upper end of the first support plate, the first support plate and the fixing frame are fixed by bolts, a clamping rod is arranged at the lower end of the fixing frame, and the clamping rod is embedded in the first support plate.

[0007] Furthermore, a positioning column is provided at the upper end of the fixing frame, a connecting shaft is rotatably provided at the upper end of the positioning column, a fixing sleeve is slidably provided on the outer side of the positioning column and the connecting shaft, a limiting rod is provided at an equal angle on the inner side of the fixing sleeve, and sliding grooves are correspondingly provided on the outer sides of the positioning column and the connecting shaft.

[0008] Furthermore, the internal thread of the connecting shaft is connected with a screw rod, and the upper end of the screw rod is provided with a support frame.

[0009] Furthermore, a second support plate is rotatably arranged inside the support frame, and an upper end of the second support plate is in contact with the top plate.

[0010] Furthermore, a clamping rod is embedded inside the support frame and the second support plate, the outer side of the through end of the clamping rod is threaded, and the outer side is limited by a nut.

[0011] Compared with the prior art, the advantages of the present invention are: The present invention adjusts the angle of the second support plate by rotating it, so that the bottom of the top plate is fitted with the second support plate, and then the extension length of the screw can be adjusted by rotating the connecting shaft and the fixing sleeve, and then, under the premise of not adjusting the angle of the second support plate, the height of the second support plate can be adjusted to support the bottom of the top plate, so that the second support plate is effectively fitted to the bottom of the top plate, thereby improving the supporting effect of the equipment and avoiding the collapse of the top plate.

[0012] Based on the above beneficial effects, by setting a threaded connection between the screw and the connecting shaft, the screw and the connecting shaft can still rotate a certain angle when the equipment is supporting, so that when it is subjected to impact force, the movement of the screw and the connecting shaft can effectively buffer the equipment and improve the support effect of the equipment. A return spring can be set inside the positioning column to ensure the supporting force of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0014] Figure 1 It is an overall three-dimensional schematic diagram of the present invention; Figure 2 It is a schematic front cross-sectional view of the whole of the present invention; Figure 3 It is a schematic diagram of the interior of the positioning column of the present invention; Figure 4 It is a top view schematic diagram of the connecting shaft of the present invention; Figure 5 It is a schematic diagram of the interior of the support frame of the present invention.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 10. Bottom plate; 11. Hydraulic support column; 20. First support plate; 21. Fixed frame; 22. Clamping rod; 23. Fixing bolt; 24. Positioning column; 25. Connecting shaft; 26. Fixed sleeve; 27. Limiting rod; 30. Screw rod; 31. Support frame; 32. Second support plate; 33. Clamp rod;. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] See also Figure 1-5 As shown, this embodiment is a support structure for effectively controlling the roof and reducing the risk of roof collapse, including: The top support assembly includes a hydraulic support column 11 and a first support plate 20. The bottom plate 10 is fixed to the ground by bolts. The upper end of the bottom plate 10 is equidistantly provided with hydraulic support columns 11. The hydraulic support columns 11 are stepped. The upper end of the hydraulic support columns 11 is provided with a first support plate 20.

[0020] When the equipment is in use, the base plate 10 is connected to the ground to fix the base plate 10 to the ground, and then the hydraulic support column 11 is used to lift the height of the first support plate 20, so as to adjust the height of the first support plate 20, thereby facilitating the overall use of the equipment, and the first support plate 20 can support the equipment.

[0021] A fixing frame 21 is equidistantly arranged at the upper end of the first support plate 20 . The first support plate 20 and the fixing frame 21 are fixed by bolts. A clamping rod 22 is arranged at the lower end of the fixing frame 21 . The clamping rod 22 is embedded in the first support plate 20 .

[0022] When the device is in use, the clamping rod 22 is embedded in the first support plate 20, and then the fixing frame 21 and the first support plate 20 are connected by bolts, so that the fixing frame 21 is fixedly installed. The fixing frame 21 can be installed according to actual conditions based on the position that needs to be supported, so as to support the appropriate position.

[0023] A positioning column 24 is provided at the upper end of the fixing frame 21, and a connecting shaft 25 is rotatably provided at the upper end of the positioning column 24. A fixing sleeve 26 is slidably provided on the outer side of the positioning column 24 and the connecting shaft 25, and a limiting rod 27 is provided at an equal angle on the inner side of the fixing sleeve 26. Sliding grooves are correspondingly provided on the outer sides of the positioning column 24 and the connecting shaft 25.

[0024] When the equipment is in use, the fixing sleeve 26 is moved upward to separate it from the positioning column 24. When the two are not in the same horizontal plane, the limit rod 27 will not limit the connecting shaft 25. At this time, the connecting shaft 25 and the support angle are adjusted by rotating it, so as to facilitate support and effectively fit the bottom of the top plate to achieve the purpose of reducing the collapse of the top plate. After that, the fixing sleeve 26 and the limit rod 27 move downward under the action of gravity, and the limit rod 27 is respectively embedded in the interior of the positioning column 24 and the connecting shaft 25, thereby fixing the positioning column 24 and the connecting shaft 25 to prevent rotation between the positioning column 24 and the connecting shaft 25.

[0025] The inner thread of the connecting shaft 25 is connected with a screw rod 30 , and a support frame 31 is provided at the upper end of the screw rod 30 .

[0026] Since the connecting shaft 25 and the screw rod 30 are threadedly connected, the screw rod 30 can be rotated to fine-tune its extended length, and when the screw rod 30 is used for support, when the support is subjected to a large force, a small rotation will occur between the screw rod 30 and the connecting shaft 25, thereby effectively unloading the force and avoiding the collapse of the top plate. A return spring can be installed inside the positioning column 24 to support the screw rod 30, to assist the screw rod 30 in supporting and avoid the screw rod 30 from being misaligned.

[0027] A second support plate 32 is rotatably disposed inside the support frame 31 , and the upper end of the second support plate 32 is in contact with the top plate.

[0028] By fitting the second support plate 32 to the top plate, the second support plate 32 is used for support to prevent the top plate from collapsing.

[0029] A clamping rod 33 is embedded inside the support frame 31 and the second support plate 32 . The outer side of the through end of the clamping rod 33 is threaded, and the outer side is limited by a nut.

[0030] When the device is in use, the angle of the second support plate 32 can be adjusted by rotating it, and then the clamping rod 33 is moved to embed into the support frame 31 and the second support plate 32 respectively, thereby limiting the second support plate 32 to prevent the second support plate 32 from rotating, thereby improving the stability of the device when in use.

[0031] The working principle is as follows: first, the overall height of the equipment is adjusted by the hydraulic support column 11, so that the upper end of the equipment is close to the top plate, and the second support plate 32 is rotated to make its angle the same as the inclination direction of the top plate, so that the second support plate 32 is in contact with the bottom of the top plate, and the clamping rod 33 is used to fix the second support plate 32. Then, the fixing sleeve 26 is moved upward to no longer limit the connecting shaft 25, and the connecting shaft 25 is driven to rotate by rotating the fixing sleeve 26. At the same time, the angles of the screw rod 30 and the support frame 31 are limited, so that the screw rod 30, the support frame 31 and the second support plate 32 are moved upward while the connecting shaft 25 is rotated again, and the top plate is supported by the second support plate 32, and a return spring can be placed inside the positioning column 24 according to the supporting force to increase the supporting force of the equipment, so that the second support plate 32 is in contact with the bottom of the top plate to support the top plate.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A support structure for effectively controlling the roof and reducing the risk of roof collapse, characterized in that: include: A top support assembly, the top support assembly comprising a hydraulic support column (11) and a first support plate (20), the bottom plate (10) being fixed to the ground by bolts, the upper end of the bottom plate (10) being provided with hydraulic support columns (11) at equal intervals, the hydraulic support columns (11) being in a stepped shape, and the upper end of the hydraulic support columns (11) being provided with the first support plate (20).

2. A supporting structure for effectively controlling the roof and reducing the risk of roof collapse according to claim 1, characterized in that: A fixing frame (21) is equidistantly arranged at the upper end of the first support plate (20); the first support plate (20) and the fixing frame (21) are fixed by bolts; a clamping rod (22) is arranged at the lower end of the fixing frame (21); the clamping rod (22) is embedded in the interior of the first support plate (20).

3. A supporting structure for effectively controlling the roof and reducing the risk of roof collapse according to claim 2, characterized in that: A positioning column (24) is arranged at the upper end of the fixing frame (21), a connecting shaft (25) is rotatably arranged at the upper end of the positioning column (24), a fixing sleeve (26) is slidably arranged on the outer side of the positioning column (24) and the connecting shaft (25), a limiting rod (27) is arranged at an equal angle on the inner side of the fixing sleeve (26), and sliding grooves are correspondingly provided on the outer side of the positioning column (24) and the connecting shaft (25).

4. A supporting structure for effectively controlling the roof and reducing the risk of roof collapse according to claim 3, characterized in that: The internal thread of the connecting shaft (25) is connected to a screw rod (30), and a support frame (31) is provided at the upper end of the screw rod (30).

5. A supporting structure for effectively controlling the roof and reducing the risk of roof collapse according to claim 4, characterized in that: A second support plate (32) is rotatably arranged inside the support frame (31), and the upper end of the second support plate (32) is in contact with the top plate.

6. A supporting structure for effectively controlling the roof and reducing the risk of roof collapse according to claim 5, characterized in that: A clamping rod (33) is embedded inside the support frame (31) and the second support plate (32), the outer side of the through end of the clamping rod (33) is threaded, and the outer side is limited by a nut.

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