Underground coal mine foldable anti-explosion hydraulic support

Abstract

The utility model belongs to the technical field of coal mine operation, and discloses an underground coal mine foldable anti-explosion hydraulic support which comprises an anti-explosion support body, a vertical supporting plate is arranged on the upper side of the anti-explosion support body, a base is fixedly arranged on the outer side of the vertical supporting plate, and hydraulic push rods are symmetrically arranged on the outer side of the base. A side abutting plate is fixedly arranged at the output end of the hydraulic push rod, three reinforcing columns which are vertically distributed at equal intervals are arranged in the side abutting plate in a penetrating mode, L-shaped plates are symmetrically and fixedly arranged on the two sides of the side abutting plate, an anti-skid pad is fixedly arranged on the side, away from the hydraulic push rod, of the side abutting plate, and the anti-skid pad is made of a rubber material; a plurality of anti-skid bulges are arranged on the surface of the anti-skid pad. Through the scheme, the foldable design facilitates transportation and installation and adapts to different spaces; the bearing capacity and the deformation resistance are improved through multiple reinforcing structures, and stable supporting is ensured; hydraulic and mechanical combined adjustment is adopted in the lateral direction, the attaching degree and friction force are enhanced in cooperation with an anti-skid structure, and a rubber pad can further buffer and protect the well wall.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine operation technology, specifically a foldable explosion-proof hydraulic support for underground coal mines. Background Technology

[0002] Coal mining operations are complex and inherently dangerous systematic engineering projects involving coal mining, transportation, processing, and related supporting work. They require strict adherence to safety regulations and operating procedures. Hydraulic supports are coal mining face support equipment that uses high-pressure liquid as power and consists of several hydraulic components and metal parts connected in a specific manner.

[0003] However, the following problems were found in the implementation of the relevant technologies:

[0004] Most existing hydraulic supports for coal mines are fixed structures without foldable designs. They occupy a large amount of space during transportation, are difficult to install in confined underground environments, and are unsuitable for underground spaces of different sizes. Furthermore, their overall structural reinforcement is insufficient, with limited support strength in the sides and lateral sections, resulting in weak load-bearing capacity and deformation resistance, making them prone to instability in complex underground environments.

[0005] Furthermore, existing lateral support technologies mostly rely solely on hydraulic adjustment or mechanical fixing, resulting in limited adjustment methods, insufficient contact and friction with the well wall, making them prone to swaying and causing poor support stability. Simultaneously, the lack of an effective anti-slip buffer structure not only leads to poor anti-slip performance but also easily damages the well wall during the support process. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a foldable explosion-proof hydraulic support for underground coal mines, which offers advantages such as easy transportation and installation, strong adaptability, stable structure, stable support, and protection of the mine wall. Through its foldable design and multiple reinforcing structures (side pillars, transverse pillars, etc.), this invention solves the problems of existing supports such as large space occupation during transportation, difficult installation, poor adaptability, and weak load-bearing and deformation resistance. Furthermore, through the combination of lateral hydraulic and mechanical adjustment and an anti-slip buffer structure, it addresses the issues of existing lateral support adjustments being singular, insufficient friction for proper contact, easy swaying, and damage to the mine wall.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a foldable explosion-proof hydraulic support for underground coal mines, comprising an explosion-proof support, a vertical support plate on the upper side of the explosion-proof support, a base fixedly mounted on the outer side of the vertical support plate, and hydraulic push rods symmetrically mounted on the outer side of the base, with a side abutment plate fixedly mounted at the output end of the hydraulic push rods. Three reinforcing columns with the same vertical spacing are inserted through the side abutment plate, and L-shaped plates are symmetrically mounted on both sides of the side abutment plate. An anti-slip pad is fixedly mounted on the side of the side abutment plate away from the hydraulic push rods. The anti-slip pad is made of rubber and has several anti-slip protrusions on its surface.

[0008] Preferably, the explosion-proof bracket is symmetrically fixed with side pillars and cross pillars, and a wear-resistant plate is fixedly provided on the lower surface of the explosion-proof bracket, with a plurality of wear-resistant textures on the lower surface of the wear-resistant plate.

[0009] Preferably, a support plate is fixedly provided on the upper surface of the vertical support plate, and inclined reinforcing blocks are symmetrically fixed between the support plate and the corresponding vertical support plate. A clamping plate is fixedly provided on the upper surface of the explosion-proof bracket. A sliding groove is provided on the inner side of the vertical support plate. Several bolt slots are symmetrically provided on one side of both the clamping plate and the vertical support plate, and a positioning bolt is connected to the common bolt in two corresponding bolt slots.

[0010] Preferably, side blocks are symmetrically fixed on both sides of the support plate and the explosion-proof bracket, and telescopic columns are fixedly fixed between the upper and lower side blocks.

[0011] Preferably, a groove is provided on one side of the base, and a rotating column is provided through the outer surface of the hydraulic push rod, and the rotating column is rotatably disposed in the groove.

[0012] Preferably, the lower end of the base is rotatably provided with a rotating plate, and one side of the rotating plate is rotatably provided with a rotating frame. One side of the rotating frame is rotatably connected to the lower side of the corresponding side abutment plate. One side of the base is fixedly provided with a connecting frame, and a reinforcing telescopic rod is rotatably connected between the connecting frame and the rotating frame.

[0013] Preferably, a threaded post is threaded through one side of the L-shaped plate, and a contact plate is fixedly provided at the end of the threaded post. A turntable is fixedly provided at the other end of the threaded post, and a handle is rotatably provided on the outer side of the turntable.

[0014] Preferably, reinforcing plates are symmetrically fixed inside the L-shaped plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model features a foldable design for easy transportation and installation, adapting to various downhole environments. The overall structure incorporates multiple reinforcement designs, such as side supports, transverse supports, reinforcing columns, and reinforcing plates, significantly enhancing the support's load-bearing capacity and resistance to deformation, ensuring stable support in complex downhole environments.

[0017] 2. This utility model uses a combination of hydraulic adjustment and mechanical auxiliary fixing in the lateral support part, along with an anti-slip structure, to effectively enhance the fit and friction with the well wall, prevent the support from swaying, and improve the stability of the support; the rubber anti-slip pad not only prevents slipping but also plays a certain role in cushioning, reducing damage to the well wall. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the relevant structure of the base of this utility model;

[0020] Figure 3 This is a schematic diagram of the relevant structure of the L-shaped plate of this utility model;

[0021] Figure 4 This is an exploded view of the relevant structure of the vertical support plate of this utility model.

[0022] In the diagram: 1. Explosion-proof bracket; 11. Side support column; 12. Horizontal support column; 2. Vertical support plate; 21. Clamping plate; 22. Support plate; 23. Inclined reinforcing block; 24. Slide groove; 25. Bolt groove; 26. Positioning bolt; 5. Side abutment plate; 51. Base; 52. Hydraulic push rod; 53. Groove; 54. Rotating column; 55. Rotating plate; 56. Rotating frame; 57. Connecting frame; 58. Reinforced telescopic rod; 59. Reinforcing column; 6. L-shaped plate; 61. Threaded column; 62. Contact plate; 63. Turntable; 64. Handle; 65. Reinforcing plate; 7. Side block; 71. Telescopic column. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 4As shown, this utility model provides a foldable explosion-proof hydraulic support for underground coal mines, including an explosion-proof support 1. A vertical support plate 2 is provided on the upper side of the explosion-proof support 1. A base 51 is fixedly provided on the outer side of the vertical support plate 2, and hydraulic push rods 52 are symmetrically provided on the outer side of the base 51. A side abutment plate 5 is fixedly provided at the output end of the hydraulic push rod 52. Three reinforcing columns 59 with the same vertical spacing are provided through the side abutment plate 5. L-shaped plates 6 are symmetrically fixed on both sides of the side abutment plate 5. An anti-slip pad is fixedly provided on the side of the side abutment plate 5 away from the hydraulic push rod 52. The anti-slip pad is made of rubber and has several anti-slip protrusions on its surface. When the hydraulic push rod 52 extends or retracts, it drives the side abutment plate 5 to move. The reinforcing columns 59 in the side abutment plate 5 enhance its resistance to deformation. The rubber anti-slip pad and the anti-slip protrusions on its surface increase the friction with the well wall and improve the lateral support effect.

[0025] Specifically, the explosion-proof bracket 1 is symmetrically fixed with side support columns 11 and horizontal support columns 12. The lower surface of the explosion-proof bracket 1 is fixed with a wear-resistant plate, and the lower surface of the wear-resistant plate is provided with several wear-resistant textures. The explosion-proof bracket 1 contacts the underground ground through the wear-resistant plate on its lower surface. The side support columns 11 and horizontal support columns 12 enhance the overall structural strength of the explosion-proof bracket 1 and ensure the stability of the bottom.

[0026] Furthermore, a support plate 22 is fixedly provided on the upper surface of the vertical support plate 2, and inclined reinforcing blocks 23 are symmetrically fixed between the support plate 22 and the corresponding vertical support plate 2. A clamping plate 21 is fixedly provided on the upper surface of the explosion-proof bracket 1. A sliding groove 24 is opened on the inner side of the vertical support plate 2. Several bolt grooves 25 are symmetrically opened on one side of both the clamping plate 21 and the vertical support plate 2, and a positioning bolt 26 is connected to the corresponding two bolt grooves 25 by bolts. The vertical support plate 2 is connected to the explosion-proof bracket 1 through the clamping plate 21, and the two are fixed by the positioning bolt 26 passing through the corresponding bolt groove 25. At the same time, the inclined reinforcing blocks 23 strengthen the connection between the support plate 22 and the vertical support plate 2, and the support plate 22 provides support for the top.

[0027] Furthermore, side blocks 7 are symmetrically fixed on both sides of the support plate 22 and the explosion-proof bracket 1, and telescopic columns 71 are fixed between the upper and lower corresponding side blocks 7. The telescopic columns 71 between the upper and lower corresponding side blocks 7 can extend and retract in coordination with the position change of the vertical support plate 2 to help maintain the stability of the overall structure.

[0028] It is worth noting that a groove 53 is provided on one side of the base 51, and a rotating column 54 is provided through the outer surface of the hydraulic push rod 52. The rotating column 54 is rotatably set in the groove 53. In terms of lateral support, the base 51 is fixed to the outside of the vertical support plate 2, and the hydraulic push rod 52 rotates in the groove 53 of the base 51 through the rotating column 54 to achieve angle adjustment.

[0029] It is worth noting that a rotating plate 55 is rotatably provided at the lower end of the base 51, and a rotating frame 56 is rotatably provided on one side of the rotating plate 55. One side of the rotating frame 56 is rotatably connected to the lower side of the corresponding side abutment plate 5. A connecting frame 57 is fixedly provided on one side of the base 51, and a reinforcing telescopic rod 58 is rotatably connected between the connecting frame 57 and the rotating frame 56. The rotating plate 55 at the lower end of the base 51, the rotating frame 56 rotatably connected to the lower side of the side abutment plate 5, the connecting frame 57 and the reinforcing telescopic rod 58 cooperate with each other. When the side abutment plate 5 moves, the rotating frame 56 rotates accordingly, and the reinforcing telescopic rod 58 extends and retracts to strengthen the support for the rotating frame 56, further improving the stability of the side abutment plate 5.

[0030] It is worth mentioning that a threaded post 61 is threaded through one side of the L-shaped plate 6, and a contact plate 62 is fixedly attached to the end of the threaded post 61. A turntable 63 is fixedly attached to the other end of the threaded post 61, and a handle 64 is rotatably attached to the outside of the turntable 63. Reinforcing plates 65 are symmetrically fixed inside the L-shaped plate 6. In addition, the threaded post 61 on the L-shaped plate 6 rotates under the action of the turntable 63 and the handle 64, which drives the contact plate 62 to move, which can assist the side abutment plate 5 in fine adjustment and enhance the lateral fixing effect. The reinforcing plate 65 inside the L-shaped plate 6 improves the structural strength of the L-shaped plate 6 itself.

[0031] The hydraulic push rod 52 is existing technology and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The "front, rear, left, and right" perspectives of this device are... Figure 1 The direction shown in the diagram is the reference.

[0032] Working principle: During the operation of this foldable explosion-proof hydraulic support in coal mines, the various structures work together to achieve support and adjustment functions. The explosion-proof support 1 contacts the underground ground through the wear-resistant plate on its lower surface. The side support 11 and the horizontal support 12 enhance the overall structural strength of the explosion-proof support 1, ensuring bottom stability.

[0033] The vertical support plate 2 is connected to the explosion-proof bracket 1 via the clamping plate 21, and the two are fixed by using positioning bolts 26 passing through the corresponding bolt slots 25. At the same time, the inclined reinforcing block 23 strengthens the connection between the support plate 22 and the vertical support plate 2, and the support plate 22 provides support for the top. The telescopic column 71 between the upper and lower corresponding side blocks 7 can extend and retract in accordance with the position changes of the vertical support plate 2 to help maintain the stability of the overall structure.

[0034] For lateral support, the base 51 is fixed to the outside of the vertical support plate 2, and the hydraulic push rod 52 rotates in the groove 53 of the base 51 via the rotating column 54 to achieve angle adjustment. When the hydraulic push rod 52 extends or retracts, it drives the side abutment plate 5 to move. The reinforcing column 59 inside the side abutment plate 5 enhances its resistance to deformation, and the rubber anti-slip pad and the anti-slip protrusions on the surface increase the friction with the well wall, thereby improving the lateral support effect.

[0035] The rotating plate 55 at the lower end of the base 51, the rotating frame 56 rotatably connected to the lower side of the side plate 5, the connecting frame 57 and the reinforcing telescopic rod 58 cooperate with each other. When the side plate 5 moves, the rotating frame 56 rotates accordingly, and the reinforcing telescopic rod 58 extends and retracts to strengthen the support for the rotating frame 56, further improving the stability of the side plate 5.

[0036] In addition, the threaded rod 61 on the L-shaped plate 6 rotates under the action of the turntable 63 and the handle 64, which drives the contact plate 62 to move, which can assist the side abutment plate 5 in fine adjustment and enhance the lateral fixing effect. The reinforcing plate 65 inside the L-shaped plate 6 improves the structural strength of the L-shaped plate 6 itself.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable explosion-proof hydraulic support for underground coal mines, comprising an explosion-proof support (1), characterized in that: The explosion-proof bracket (1) has a vertical support plate (2) on its upper side. A base (51) is fixedly provided on the outer side of the vertical support plate (2). A hydraulic push rod (52) is symmetrically provided on the outer side of the base (51). A side abutment plate (5) is fixedly provided at the output end of the hydraulic push rod (52). Three reinforcing columns (59) with the same vertical spacing are provided through the side abutment plate (5). L-shaped plates (6) are symmetrically fixed on both sides of the side abutment plate (5). An anti-slip pad is fixedly provided on the side of the side abutment plate (5) away from the hydraulic push rod (52). The anti-slip pad is made of rubber and has several anti-slip protrusions on its surface.

2. The foldable explosion-proof hydraulic support for underground coal mines according to claim 1, characterized in that: The explosion-proof bracket (1) is symmetrically fixed with side support columns (11) and horizontal support columns (12). The lower surface of the explosion-proof bracket (1) is fixed with a wear-resistant plate, and the lower surface of the wear-resistant plate is provided with several wear-resistant textures.

3. The foldable explosion-proof hydraulic support for underground coal mines according to claim 1, characterized in that: A support plate (22) is fixedly provided on the upper surface of the vertical support plate (2). An inclined reinforcing block (23) is symmetrically fixed between the support plate (22) and the corresponding vertical support plate (2). A clamping plate (21) is fixedly provided on the upper surface of the explosion-proof bracket (1). A sliding groove (24) is opened on the inner side of the vertical support plate (2). Several bolt grooves (25) are symmetrically opened on one side of the clamping plate (21) and the vertical support plate (2). A positioning bolt (26) is connected in the common bolt cooperation between the two corresponding bolt grooves (25).

4. The foldable explosion-proof hydraulic support for underground coal mines according to claim 3, characterized in that: Both sides of the support plate (22) and the explosion-proof bracket (1) are symmetrically fixed with side blocks (7), and telescopic columns (71) are fixed between the upper and lower corresponding side blocks (7).

5. The foldable explosion-proof hydraulic support for underground coal mines according to claim 1, characterized in that: A groove (53) is provided on one side of the base (51), and a rotating column (54) is provided through the outer surface of the hydraulic push rod (52), and the rotating column (54) is rotatably disposed in the groove (53).

6. The foldable explosion-proof hydraulic support for underground coal mines according to claim 1, characterized in that: The lower end of the base (51) is rotatably provided with a rotating plate (55), and a rotating frame (56) is rotatably provided on one side of the rotating plate (55). One side of the rotating frame (56) is rotatably connected to the lower side of the corresponding side abutment plate (5). A connecting frame (57) is fixedly provided on one side of the base (51), and a reinforcing telescopic rod (58) is rotatably connected between the connecting frame (57) and the rotating frame (56).

7. The foldable explosion-proof hydraulic support for underground coal mines according to claim 1, characterized in that: One side of the L-shaped plate (6) is threaded with a threaded post (61), and a contact plate (62) is fixed at the end of the threaded post (61). The other end of the threaded post (61) is fixed with a turntable (63), and a handle (64) is rotatably provided on the outside of the turntable (63).

8. A foldable explosion-proof hydraulic support for underground coal mines according to claim 7, characterized in that: The L-shaped plate (6) is symmetrically fixed with reinforcing plates (65).

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