Device for coal mine open-off cut supporting

Abstract

The utility model relates to the technical field of coal mining, and discloses a device for supporting a coal mine open-off cut, which comprises inverted U-shaped supporting components arranged in a coal mine open-off cut roadway, and each inverted U-shaped supporting component forms a vertical support when being mounted in the coal mine open-off cut roadway; the multiple sets of locking connecting pieces are arranged, each set of locking connecting pieces comprises two locking connecting pieces, and the two locking connecting pieces are detachably installed between every two adjacent sets of inverted-U-shaped supporting assemblies; and the top supporting pieces are installed on the two corresponding locking connecting pieces respectively, all the top supporting pieces are arranged in parallel, and after each top supporting piece is installed on the two corresponding locking connecting pieces, horizontal supporting is formed on the top of the coal mine open-off cut roadway. According to the utility model, after the plurality of top support pieces form horizontal support at the top of the open-off cut roadway, the falling of broken stones or muck at the top of the open-off cut roadway can be avoided, so that the safety of operating personnel in the roadway is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a device for supporting a coal mine cut. Background Art

[0002] Patent document CN212337320U discloses a device for supporting coal mine eye cutting, including multiple single supports fixedly arranged in the coal mine tunnel and a first shed beam arranged horizontally on the top of the single support, a ceiling is horizontally laid on the top of the first shed beam, the coal mine tunnel is provided with a large brush side and a guide shaft side, a second shed beam is arranged at the bottom of the first shed beam on the large brush side, the second shed beam is fixedly connected to the side wall of the single support, a T-shaped steel shed leg is vertically arranged at the junction of the large brush side and the guide shaft side, one end of the T-shaped steel shed leg is fixed on the ground, and the other end extends to the ceiling, and the second shed beam is overlapped when the coal mine eye is cut and brushed.

[0003] Patent document CN216894463U discloses a large-section eye-cutting support device under a goaf, which relates to the field of coal mining technology, including a plurality of fixedly arranged single hydraulic pillars and a first shed beam and a second shed beam placed on the top of the single hydraulic pillars. The first shed beam and the second shed beam are horizontally laid on the top of the eye-cutting tunnel. The first shed beam and the second shed beam are U-shaped steel shed beams. One end of the first shed beam and the second shed beam are vertically overlapped at the center of the top of the eye-cutting tunnel, and the overlap is fixedly connected by a plurality of fixed cables. At least one single hydraulic pillar is vertically arranged at the bottom of the overlap of the first shed beam and the second shed beam. The other ends of the first shed beam and the second shed beam are vertically overlapped with the left shed leg and the right shed leg respectively by positioning cables. The left shed leg and the right shed leg are both U-shaped steel shed beams, and the angle between the left shed leg and the right shed leg and the ground is an acute angle.

[0004] However, it can be clearly seen from the drawings of the above two patent documents that the support devices for coal mine eye cutting disclosed in the above two patent documents can only provide support on the vertical surface within the coal mine eye cutting tunnel, but cannot provide support on the horizontal surface within the coal mine eye cutting tunnel. Therefore, when the support devices for coal mine eye cutting disclosed in the above two patent documents can only provide support on the vertical surface within the eye cutting tunnel, but cannot provide support on the horizontal surface within the eye cutting tunnel, the gravel or slag on the top of the eye cutting tunnel will continue to fall down, and the fallen gravel or slag can easily hit the workers working in the tunnel, thereby causing safety accidents.

[0005] Based on this, a device for supporting coal mine cut-eye is proposed. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the shortcomings of the prior art, the utility model provides a device for supporting coal mine eye cutting to solve the problem raised in the background technology: when the supporting device for coal mine eye cutting in the prior art can only provide support on the vertical surface in the eye cutting tunnel but cannot provide support on the horizontal surface in the eye cutting tunnel, the gravel or slag on the top of the eye cutting tunnel will continue to fall down, and the fallen gravel or slag can easily hit the workers working in the tunnel, thereby causing safety accidents.

[0008] (II) Technical solution

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A device for supporting a coal mine cut-off hole, comprising:

[0011] An inverted U-shaped support assembly arranged in a coal mine cut-eye laneway, wherein a plurality of groups are arranged, each group of the inverted U-shaped support assemblies is arranged in parallel in the coal mine cut-eye laneway, and each group of the inverted U-shaped support assemblies forms a vertical support when installed in the coal mine cut-eye laneway;

[0012] A locking connector, which is provided in multiple groups, each group has two locking connectors, and the two locking connectors are detachably installed between two adjacent groups of inverted U-shaped support components, and the two locking connectors are symmetrically arranged; and

[0013] There are multiple top support members, each of which is installed on two corresponding locking connectors, and each of the top support members is arranged in parallel. After each of the top support members is installed on the two corresponding locking connectors, it forms a horizontal support on the top of the coal mine cut-eye tunnel.

[0014] Preferably, each group of the inverted U-shaped support components includes a main locking sleeve, and a shed beam is inserted and installed in the two locking chambers of each of the main locking sleeves, and secondary locking sleeves are socketed and installed at both ends of the two shed beams, and inverted L-shaped shed legs are installed on the two secondary locking sleeves.

[0015] Preferably, the tops of the two inverted L-shaped shelf legs are integrally formed with a bent docking portion, and an outer end of each of the bent docking portion is plugged and installed in the locking chamber of the corresponding secondary locking sleeve.

[0016] Preferably, the main locking sleeve and the two shed beams are fastened and connected by threaded cooperation of bolts and nuts;

[0017] The two bent butt joints and the corresponding secondary locking sleeves are fastened and connected through the threaded cooperation of bolts and nuts.

[0018] Preferably, both sides of the middle of the two shed beams are provided with embedding grooves, and both sides of each embedding groove are provided with locking grooves;

[0019] Each of the locking connectors is a crossbeam, and locking blocks are integrally formed on both sides of each of the two ends of the crossbeam. Both ends of the crossbeam are snap-fitted and installed in corresponding embedding grooves, and after snapping, each of the locking blocks is snap-fitted and installed in the corresponding locking groove.

[0020] Preferably, each of the top supporting members is a supporting plate, each of the supporting plates is placed on the upper surfaces of the two beams, and after placement, the upper surface of each of the supporting plates can contact the top surface of the coal mine cut-eye tunnel.

[0021] Preferably, a lifting piece is provided underneath each of the inverted U-shaped support assemblies.

[0022] Preferably, each of the lifting parts is a single hydraulic prop, each of the single hydraulic prop is arranged below the main locking sleeve, the piston rod end of each of the single hydraulic prop is fixedly connected to the bottom of the corresponding main locking sleeve, and the bottom of the cylinder of each of the single hydraulic prop is attached to the ground of the coal mine cut-eye tunnel;

[0023] When the main locking sleeve of each set of inverted U-shaped support components moves downward due to pressure, the piston rod of the single hydraulic support can lift the main locking sleeve upward.

[0024] Preferably, each of the main locking sleeve and the auxiliary locking sleeve has an I-shaped cross-section.

[0025] (III) Beneficial effects

[0026] The utility model provides a device for supporting a coal mine cut-eye, which has the following beneficial effects:

[0027] 1. In the utility model, after each top supporting member is installed on the corresponding two locking connectors, a horizontal support is formed at the top of the coal mine cut-eye tunnel. When multiple top supporting members form a horizontal support at the top of the cut-eye tunnel, the falling of gravel or slag at the top of the cut-eye tunnel can be prevented, thereby effectively ensuring the safety of workers in the tunnel.

[0028] 2. In the present invention, the two locking connectors can be detachably installed between two adjacent groups of inverted U-shaped support components, and each group of locking connectors can connect and fix adjacent inverted U-shaped support components.

[0029] 3. In the utility model, each set of inverted U-shaped support components is arranged in parallel in the coal mine cut-eye tunnel, and each set of inverted U-shaped support components forms vertical support when installed in the coal mine cut-eye tunnel.

[0030] 4. In the utility model, each top supporting member is a supporting plate, and each supporting plate is placed on the upper surface of the two cross beams. After placement, the upper surface of each supporting plate can contact the top surface of the coal mine cutting tunnel, thereby effectively preventing the falling of gravel or slag on the top of the cutting tunnel.

[0031] 5. In the present invention, after the lifting member is arranged below the inverted U-shaped support assembly, the inverted U-shaped support assembly can be lifted, thereby effectively preventing the inverted U-shaped support assembly from being compressed and deformed.

[0032] 6. In the utility model, each single hydraulic support is arranged below the main locking sleeve, the piston rod end of each single hydraulic support is fixedly connected to the bottom of the corresponding main locking sleeve, the bottom of the cylinder of each single hydraulic support is attached to the ground of the coal mine cutting tunnel, and when the main locking sleeve of each set of inverted U-shaped support components moves downward due to pressure, the piston rod of the single hydraulic support can lift the main locking sleeve upward, thereby effectively preventing the inverted U-shaped support component from being compressed and deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0034] Figure 2 It is an explosion diagram of the utility model;

[0035] Figure 3 for Figure 2 The enlarged three-dimensional schematic diagram of part A in the middle;

[0036] Figure 4 It is a three-dimensional schematic diagram of the inverted U-shaped support assembly of the utility model;

[0037] Figure 5 for Figure 4 The enlarged three-dimensional schematic diagram of the middle B part;

[0038] Figure 6 It is a three-dimensional schematic diagram of the inverted U-shaped support assembly and the jacking member of the utility model;

[0039] Figure 7 for Figure 6 A schematic cross-sectional structure diagram of ;

[0040] Figure 8 It is a three-dimensional schematic diagram of the crossbeam of the utility model;

[0041] Fig. 9 It is a three-dimensional schematic diagram of the main locking sleeve of the utility model.

[0042] In the figure: 10, inverted U-shaped support assembly; 101, main locking sleeve; 102, shed beam; 1021, mounting groove; 1022, locking groove; 103, secondary locking sleeve; 104, inverted L-shaped shed leg; 1041, bent joint; 20, locking connector; 201, crossbeam; 2011, locking block; 30, lifting piece; 301, single hydraulic support; 40, top support piece; 401, support plate. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] Embodiment 1

[0045] In order to solve the problem that the supporting device for coal mine cutting in the prior art can only support the vertical surface in the cutting tunnel, but cannot support the horizontal surface in the cutting tunnel, the crushed stone or slag on the top of the cutting tunnel will continue to fall down, and the fallen crushed stone or slag can easily hit the workers working in the tunnel, thereby causing safety accidents, the inventor has adopted the following technical solutions, which are as follows:

[0046] like Figure 1-9 As shown, the utility model provides a technical solution:

[0047] A device for supporting a coal mine cut-off hole, comprising:

[0048] An inverted U-shaped support assembly 10 is arranged in a coal mine cut-eye lane, and multiple groups of inverted U-shaped support assemblies 10 are arranged in parallel in the coal mine cut-eye lane, and each group of inverted U-shaped support assemblies 10 forms a vertical support when installed in the coal mine cut-eye lane;

[0049] The locking connectors 20 are provided in multiple groups, each group has two locking connectors, and the two locking connectors 20 are both detachably installed between two adjacent groups of inverted U-shaped support assemblies 10, and the two locking connectors 20 are symmetrically arranged, and each group of locking connectors 20 can connect and fix adjacent inverted U-shaped support assemblies 10; and

[0050] There are multiple top support members 40, each of which is installed on the corresponding two locking connectors 20, and each of the top support members 40 is arranged in parallel. After each top support member 40 is installed on the corresponding two locking connectors 20, a horizontal support is formed at the top of the coal mine eye-cutting tunnel. When multiple top support members 40 form horizontal supports at the top of the eye-cutting tunnel, the falling of gravel or slag on the top of the eye-cutting tunnel can be avoided, thereby effectively ensuring the safety of workers in the tunnel.

[0051] Embodiment 2

[0052] like Figure 1-9 As shown, based on the first embodiment, the following improvements are made:

[0053] In order to optimize the specific structure of the inverted U-shaped support assembly 10 and to facilitate the installation or disassembly of the inverted U-shaped support assembly 10 in the eye-cutting tunnel, the inventors, in this embodiment, further, each group of inverted U-shaped support assemblies 10 includes a main locking sleeve 101, secondary locking sleeves 103 arranged on both sides of the main locking sleeve 101, two beams 102 installed between the main locking sleeve 101 and the secondary locking sleeve 103, and an inverted L-shaped leg 104 installed on the corresponding secondary locking sleeve 103.

[0054] When the main locking sleeve 101, the two shed beams 102, the two secondary locking sleeves 103 and the two inverted L-shaped shed legs 104 are assembled and connected, an inverted U shape can be formed.

[0055] More specifically, each of the main locking ferrule 101 and the auxiliary locking ferrule 103 has an I-shaped cross section, and two locking chambers are formed at both ends of each of the main locking ferrule 101 and the auxiliary locking ferrule 103;

[0056] A shed beam 102 is inserted and installed in the two locking chambers of each main locking sleeve 101 , and auxiliary locking sleeves 103 are sleeved and installed at both ends of the two shed beams 102 . Inverted L-shaped shed legs 104 are installed on the two auxiliary locking sleeves 103 .

[0057] More specifically, the tops of the two inverted L-shaped legs 104 are integrally formed with a bent docking portion 1041, and the outer end of each bent docking portion 1041 is inserted and installed in the locking chamber of the corresponding secondary locking sleeve 103. Under the action of the above structure, the installation and disassembly of the inverted U-shaped support assembly 10 can be facilitated.

[0058] In order to enable the two shed beams 102 to be locked and fixed with the main locking sleeves 101 after docking, and to enable the two inverted L-shaped shed legs 104 to be locked and fixed with the corresponding secondary locking sleeves 103 after docking, the inventors more specifically fastened the main locking sleeves 101 and the two shed beams 102 by means of threaded matching of bolts and nuts;

[0059] The two bent butt joints 1041 and the corresponding secondary locking sleeves 103 are fastened together by threaded cooperation between bolts and nuts.

[0060] Embodiment 3

[0061] like Figure 1-9 As shown, based on the second embodiment, the following improvements are made:

[0062] In order to optimize the specific structure of the locking connector 20, and to enable the locking connector 20 to be installed between adjacent inverted U-shaped support assemblies 10 and to connect and fix adjacent inverted U-shaped support assemblies 10, the inventor further provides, in this embodiment, both sides of the middle of the two shed beams 102 are provided with embedding grooves 1021, and both sides of each embedding groove 1021 are provided with locking grooves 1022;

[0063] Each locking connector 20 is a cross beam 201, and locking blocks 2011 are integrally formed on both sides of each cross beam 201. Both ends of the cross beam 201 are snap-fitted into corresponding mounting grooves 1021, and after snap-fitting, each locking block 2011 is snap-fitted into corresponding locking grooves 1022 respectively.

[0064] Embodiment 4

[0065] like Figure 1-9 As shown, based on the third embodiment, the following improvements are made:

[0066] In order to optimize the specific structure of the top support member 40, the inventor has, in the present embodiment, further, provided that each top support member 40 is a support plate 401, and each support plate 401 is placed on the upper surface of the two cross beams 201, and after placement, the upper surface of each support plate 401 can contact the top surface of the coal mine eye-cutting tunnel, thereby effectively preventing the falling of gravel or slag on the top of the eye-cutting tunnel, and thereby effectively ensuring the safety of the workers in the tunnel.

[0067] Embodiment 5

[0068] like Figure 1-9 As shown, based on the second embodiment, the following improvements are made:

[0069] In order to prevent the inverted U-shaped support assembly 10 from being deformed due to pressure, the inventor, in the present embodiment, further provides a lifting member 30 under each inverted U-shaped support assembly 10. After the lifting member 30 is provided under the inverted U-shaped support assembly 10, the inverted U-shaped support assembly 10 can be lifted, thereby effectively preventing the inverted U-shaped support assembly 10 from being deformed due to pressure.

[0070] In order to optimize the specific structure of the lifting member 30, the inventor further, in this embodiment, each lifting member 30 is a single hydraulic prop 301, each single hydraulic prop 301 is arranged below the main locking sleeve 101, the piston rod end of each single hydraulic prop 301 is fixedly connected to the bottom of the corresponding main locking sleeve 101, and the bottom of the cylinder of each single hydraulic prop 301 is attached to the ground of the coal mine cut-eye tunnel;

[0071] When the main locking sleeve 101 of each inverted U-shaped support assembly 10 moves downward due to pressure, the piston rod of the single hydraulic support 301 can lift the main locking sleeve 101 upward, thereby effectively preventing the inverted U-shaped support assembly 10 from being deformed due to pressure.

[0072] In summary, the workflow of the utility model is:

[0073] like Figure 1-9 As shown, each set of inverted U-shaped support components 10 is arranged in parallel in the coal mine cut-eye tunnel, and each set of inverted U-shaped support components 10 forms a vertical support when installed in the coal mine cut-eye tunnel;

[0074] There are multiple groups of locking connectors 20, each group has two, and both locking connectors 20 can be detachably installed between two adjacent groups of inverted U-shaped support components 10, and each group of locking connectors 20 can connect and fix adjacent inverted U-shaped support components 10;

[0075] Each top support member 40 is respectively installed on the corresponding two locking connectors 20, and each top support member 40 is arranged in parallel. After each top support member 40 is installed on the corresponding two locking connectors 20, a horizontal support is formed at the top of the coal mine cut-eye tunnel. When multiple top support members 40 form a horizontal support at the top of the cut-eye tunnel, it can prevent the falling of gravel or slag on the top of the cut-eye tunnel, thereby effectively ensuring the safety of the workers in the tunnel.

[0076] Specifically, each top support member 40 is a support plate 401, and each support plate 401 is placed on the upper surface of the two cross beams 201. After placement, the upper surface of each support plate 401 can contact the top surface of the coal mine cutting tunnel, thereby effectively preventing the falling of gravel or slag on the top of the cutting tunnel.

[0077] A lifting member 30 is provided below each inverted U-shaped support assembly 10 . After the lifting member 30 is provided below the inverted U-shaped support assembly 10 , the inverted U-shaped support assembly 10 can be lifted, thereby effectively preventing the inverted U-shaped support assembly 10 from being compressed and deformed.

[0078] Specifically, each single hydraulic prop 301 is arranged below the main locking sleeve 101, the piston rod end of each single hydraulic prop 301 is fixedly connected to the bottom of the corresponding main locking sleeve 101, and the bottom of the cylinder of each single hydraulic prop 301 is attached to the ground of the coal mine cut-eye tunnel;

[0079] When the main locking sleeve 101 of each inverted U-shaped support assembly 10 moves downward due to pressure, the piston rod of the single hydraulic support 301 can lift the main locking sleeve 101 upward, thereby effectively preventing the inverted U-shaped support assembly 10 from being deformed due to pressure.

[0080] The above different embodiments can be combined, replaced and used in conjunction with each other.

[0081] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0082] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for supporting a coal mine cut hole, characterized in that: include: An inverted U-shaped support assembly (10) arranged in a coal mine eye-cutting tunnel, wherein a plurality of groups are arranged, each group of the inverted U-shaped support assemblies (10) is arranged in parallel in the coal mine eye-cutting tunnel, and each group of the inverted U-shaped support assemblies (10) forms a vertical support when installed in the coal mine eye-cutting tunnel; A plurality of locking connectors (20) are provided, each group having two locking connectors, the two locking connectors (20) being detachably mounted between two adjacent groups of inverted U-shaped support assemblies (10), and the two locking connectors (20) being symmetrically arranged; and A plurality of top support members (40) are provided, each of the top support members (40) being mounted on two corresponding locking connectors (20), each of the top support members (40) being arranged in parallel, and each of the top support members (40) forming a horizontal support at the top of a coal mine cut-eye tunnel after being mounted on the two corresponding locking connectors (20).

2. The device for supporting a coal mine cut according to claim 1, characterized in that: Each set of the inverted U-shaped support components (10) comprises a main locking sleeve (101), a shed beam (102) is inserted and installed in two locking chambers of each main locking sleeve (101), secondary locking sleeves (103) are sleeved and installed at both ends of the two shed beams (102), and inverted L-shaped shed legs (104) are installed on the two secondary locking sleeves (103).

3. The device for supporting a coal mine cut according to claim 2, characterized in that: The tops of the two inverted L-shaped shelf legs (104) are integrally formed with a bent butt joint (1041), and an outer end of each bent butt joint (1041) is plugged and installed in the locking chamber of the corresponding secondary locking sleeve (103).

4. The device for supporting a coal mine cut-eye according to claim 3, characterized in that: The main locking sleeve (101) and the two shed beams (102) are fastened and connected by means of threaded fit between bolts and nuts; The two bent butt joints (1041) and the corresponding secondary locking sleeves (103) are fastened together by means of threaded fit between bolts and nuts.

5. The device for supporting a coal mine cut according to claim 2, characterized in that: Both sides of the middle of the two shed beams (102) are provided with embedding grooves (1021), and both sides of each embedding groove (1021) are provided with locking grooves (1022); Each of the locking connectors (20) is a crossbeam (201), and locking blocks (2011) are integrally formed on both sides of both ends of each crossbeam (201), and both ends of the crossbeam (201) are snap-fitted and installed in corresponding embedding grooves (1021), and after snap-fitting, each of the locking blocks (2011) is snap-fitted and installed in corresponding locking grooves (1022).

6. The device for supporting a coal mine cut according to claim 5, characterized in that: Each of the top support members (40) is a support plate (401), and each of the support plates (401) is placed on the upper surfaces of the two cross beams (201), and after being placed, the upper surface of each of the support plates (401) can contact the top surface of the coal mine cut-eye tunnel.

7. The device for supporting a coal mine cut according to claim 2, characterized in that: A lifting member (30) is provided below each inverted U-shaped support assembly (10).

8. The device for supporting a coal mine cut-eye according to claim 7, characterized in that: Each of the lifting parts (30) is a single hydraulic support (301), each of the single hydraulic support (301) is arranged below the main locking sleeve (101), the piston rod end of each of the single hydraulic support (301) is fixedly connected to the bottom of the corresponding main locking sleeve (101), and the bottom of the cylinder of each of the single hydraulic support (301) is attached to the ground of the coal mine cut-eye tunnel; When the main locking sleeve (101) of each set of inverted U-shaped support components (10) moves downward due to pressure, the piston rod of the single hydraulic support (301) can lift the main locking sleeve (101) upward.

9. The device for supporting a coal mine cut according to claim 2, characterized in that: The cross-section of each of the main locking sleeve (101) and the auxiliary locking sleeve (103) is I-shaped.

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