A temporary roadway reinforcing support structure for use in coal mining

Abstract

The present application relates to the technical field of coal mine roadway reinforcement support, and specifically provides a temporary roadway reinforcement support structure for coal mine tunneling, which is composed of a plurality of support units, each of which comprises two symmetrically arranged side support parts, a connecting part connecting the top of the two side support parts, and a counter-support part connecting the bottom of the two side support parts. The temporary reinforcement support structure is formed by connecting a plurality of support units. When moving according to the tunneling of the roadway, the side support part can be moved as a whole, thereby avoiding the problems of low efficiency and inability to keep up with the tunneling speed caused by the disassembly and assembly of the entire traditional support structure. After the support base and the semi-arc top support plate are lifted and stretched, they can smoothly pass through other support units, effectively preventing the problems of difficult movement and low assembly efficiency of the support structure, thereby improving the support effect of the temporary reinforcement support structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine roadway reinforcement and support, and particularly discloses a temporary roadway reinforcement and support structure for coal mine tunneling. BACKGROUND

[0002] The temporary roadway reinforcement and support structure for coal mine tunneling is a transitional reinforcement and support measure arranged during roadway tunneling or maintenance to ensure the stability of surrounding rock and the safety of operation, and the core function of the temporary roadway reinforcement and support structure is to control the deformation of surrounding rock, prevent roof falling or rib spalling, and create conditions for permanent support construction.

[0003] The temporary reinforcement and support structure is divided into full-automatic and portable types, and the existing full-automatic sliding temporary support and reinforcement structure has high mechanical automation degree, but needs to be matched with a hydraulic system, is complicated to maintain, and has high requirements for the flatness of a roadway installation surface.

[0004] The portable dismountable temporary reinforcement and support structure is disassembled and assembled in each time, which is time-consuming, slow in assembly, and cannot keep up with the speed of coal mine roadway tunneling, and if the roadway is not supported in time after tunneling, the surrounding rock of the roadway may be deformed, damaged, or even cause serious safety accidents, and in order to ensure that the support structure can effectively support the inner wall of the roadway, the size of each support is consistent with the size of the inner wall of the roadway, and if the support structure is not dismounted and carried, the dismounting and mounting of the support structure is time-consuming and laborious, low in efficiency, and difficult to follow the speed of coal mine roadway tunneling to temporarily reinforce and support the roadway, and the existing support structure is complicated to assemble and low in assembly efficiency. SUMMARY

[0005] In view of the above problems, the present application provides a temporary roadway reinforcement and support structure for coal mine tunneling to solve the technical problems in the related art.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme: a temporary roadway reinforcement and support structure for coal mine tunneling is composed of a plurality of support units, each support unit comprises two symmetrically arranged side support portions, a connecting portion connecting the top portions of the two side support portions, and a supporting portion connecting the bottom portions of the two side support portions.

[0007] The side support part comprises an L-shaped support base, a vertical section of the support base is provided with a guide groove, a semicircular top support plate is detachably connected to the guide groove and slides up and down, two inclined support rods are symmetrically arranged along the length direction of the semicircular top support plate and are hinged to the side away from the support base, two reinforcing plates are arranged along the length direction of the support base, a pushing plate is slidably arranged on the vertical section of the support base and pushes the semicircular top support plate to move upwards, a hydraulic drive source one is arranged on the support base and drives the pushing plate to move up and down (for example, a hydraulic cylinder is arranged on the support base and drives the pushing plate to move up and down), a locking assembly is arranged on the pushing plate and is hung on the top of the vertical section of the support base, and the pushing plate is integrally inserted and locked with the lower end of the inclined support rod and the reinforcing plate.

[0008] The two ends of the support base arranged along the length direction are provided with matched locking parts; the connecting part is connected with one of the side support parts and is detachably connected with the other side support part.

[0009] In a possible implementation, the semicircular top support plate is composed of a semicircular plate, a side abutting plate and two end inserts, the bottom of the semicircular plate is provided with a connecting plate, the side abutting plate is horizontally and slidably connected to the lower end of the semicircular plate through the connecting plate, the end inserts are fixedly arranged at the lower end of the semicircular plate and are located on both sides of the side abutting plate, and two guide sliding grooves are arranged on the guide groove along the length direction.

[0010] In a possible implementation, an abutting piece is arranged on the inclined support rod and pushes the side abutting plate to abut against the roadway when the inclined support rod rotates; the abutting piece comprises an abutting rod fixedly arranged on the inclined support rod, and an abutting wheel rotatably connected to the abutting rod.

[0011] In a possible implementation, the locking assembly comprises two installation grooves arranged on the top of the pushing plate, the installation groove is composed of a vertical section penetrating through the top of the pushing plate and a horizontal section in communication with the vertical section, a rotating rod is rotatably connected to the horizontal section of the installation groove, a sliding plate is slidably connected to the rotating rod, an insert locking rod is arranged on the sliding plate, after the semicircular top support plate is pushed by the pushing plate to abut against the top of the roadway, the sliding plate cooperates with the insert locking rod to lock the insert locking rod on the top of the support base, and the insert locking hole is arranged on the inclined support rod and the reinforcing plate and penetrates through the inclined support rod, and a limiting piece is arranged on the installation groove and slides up and down to limit the sliding plate.

[0012] In a possible implementation, the connecting part comprises a middle connecting piece, the two sides of the middle connecting piece arranged along the width direction are square waves, the end of the semicircular top support plate away from the support base is also a square wave, the square wave structures on the semicircular top support plate and the middle connecting piece are staggered and inserted, the middle connecting piece is hinged to one of the semicircular top support plates and is detachably inserted to the other semicircular top support plate through a fixed rod.

[0013] In a possible implementation mode, the supporting part comprises a clamping groove arranged on each horizontal section of the supporting base, and the clamping grooves on the two supporting bases are staggered and clamped, and a rectangular recess is arranged in the middle of each horizontal section of the supporting base, and a hydraulic drive source II is arranged on one of the supporting bases and located in the rectangular recess.

[0014] In a possible implementation mode, the locking part comprises a limiting plug arranged at one end of the horizontal section of the supporting base, a limiting slot arranged at the other end of the horizontal section of the supporting base, a connecting buckle arranged on the vertical section of the supporting base and arranged uniformly from top to bottom, a plug-in hole arranged on the connecting buckle, and the connecting buckles on the two sides of the supporting base are arranged in a staggered manner, and when the two supporting bases are connected, the connecting buckles are aligned in a staggered manner, and the two supporting bases are connected by inserting the locking rod into the plug-in hole.

[0015] The above one or more technical solutions in the embodiment of the present application have at least one of the following beneficial effects: 1. The temporary reinforcing support structure for coal mine tunneling comprises a plurality of supporting units, each supporting unit is composed of a side support part, a connecting part connecting the top of the two side support parts, and a supporting part connecting the bottom of the two side support parts. When moving according to the tunneling, the side support part can be moved as a whole, thereby avoiding the problems of low efficiency and difficulty in keeping up with the tunneling speed caused by the traditional support structure being disassembled as a whole, and the supporting base and the semi-arc roof support plate can be smoothly passed through other supporting units after being lifted and stretched, effectively preventing the problems of difficult movement and low assembly efficiency of the support structure, thereby improving the supporting effect of the temporary reinforcing support structure.

[0016] 2. The present application discloses a buckle locking assembly for locking the pushing plate on the top of the vertical section of the supporting base and integrally inserting and locking with the lower end of the inclined support rod and the reinforcing plate, which not only improves the locking convenience of the semi-arc roof support plate after moving up, but also greatly improves the assembly efficiency of the side support part by integrally locking the semi-arc roof support plate with the inclined support rod and the reinforcing plate.

[0017] 3. When disassembling and moving the supporting unit, only the buckle locking assembly needs to be unlocked, so that the semi-arc roof support plate can be moved down to realize the quick folding of the supporting unit, so that the side support part can be moved in the tunneling direction from the remaining supporting units, thereby avoiding the problems of complicated steps, low efficiency and difficulty in carrying the whole support structure when disassembling the traditional support structure as a whole, and improving the convenience of assembling and disassembling the supporting unit, so that the assembly and disassembly and movement of the support structure can follow the tunneling speed of the roadway in time, and provide stable temporary support effect for the roadway. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description only are the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on the provided drawings without any creative effort.

[0019] Figure 1 is a schematic diagram of the overall three-dimensional structure of the present application.

[0020] Figure 2 is a schematic diagram of the overall three-dimensional structure of the support unit of the present application.

[0021] Figure 3 is a schematic diagram of the three-dimensional structure of the side support part of the present application.

[0022] Figure 4 is a schematic diagram of the three-dimensional structure of the side support part of the present application. Figure 3

[0023] Figure 5 is a schematic diagram of the disassembly, movement and position transformation of the support unit of the present application according to the tunneling direction.

[0024] Figure 6 is an enlarged view of B in Figure 5

[0025] Figure 7 is a schematic diagram of the structure of the end plug of the present application.

[0026] Figure 8 is an enlarged view of C in Figure 1

[0027] Figure 9 is a schematic diagram of the structure of the push plate and the side stop plate of the present application.

[0028] Reference signs: 1, support unit; 2, side support part; 20, support base; 21, guide groove; 22, half-arc support plate; 220, half-arc plate; 221, side stop plate; 222, end plug; 223, connecting plate; 224, guide sliding groove; 23, inclined support rod; 230, stop rod; 231, stop wheel; 24, reinforcing plate; 25, push plate; 26, lock assembly; 260, mounting groove; 261, rotating rod; 262, sliding plate; 263, plug-in lock rod; 264, limiting piece; 3, connecting part; 30, middle connecting piece; 31, fixed rod; 4, support part; 40, clamping groove; 41, rectangular groove; 42, hydraulic drive source two; 5, locking part; 50, limiting plug; 51, limiting slot; 52, connecting buckle; 53, plug-in hole; 54, locking rod. DETAILED DESCRIPTION

[0029] ​​​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0030] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0031] Referring to Figure 1 A temporary roadway reinforcing support structure for coal mine tunneling is composed of a plurality of support units 1, each of which comprises two symmetrically arranged side support parts 2, a connecting part 3 connecting the top of the two side support parts 2, and a supporting part 4 connecting the bottom of the two side support parts 2.

[0032] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 The side support part 2 comprises an L-shaped support base 20, the vertical section of the support base 20 is provided with a guide groove 21, the guide groove 21 is provided with a semi-arc top support plate 22 which is detachably connected to the guide groove 21 and slides up and down, the side of the semi-arc top support plate 22 away from the support base 20 is hingedly connected with two inclined struts 23 which are symmetrically arranged along the length direction of the semi-arc top support plate 22, the support base 20 is provided with two reinforcing plates 24 arranged along the length direction of the support base 20, the vertical section of the support base 20 is slidably provided with a pushing plate 25 for pushing the semi-arc top support plate 22 to move upward, the support base 20 is provided with a hydraulic drive source I (such as a hydraulic cylinder mounted on the support base 20, which is used to drive the pushing plate 25 to move up and down), the pushing plate 25 is provided with a locking assembly 26 for hanging on the top of the vertical section of the support base 20, and the pushing plate 25 is integrally inserted and locked with the lower end of the inclined strut 23 and the reinforcing plate 24, when moving according to the tunneling, the side support part 2 can be moved as a whole, thereby avoiding the problem that the traditional support structure is disassembled as a whole, which is low in efficiency and cannot keep up with the tunneling speed, and after the support base 20 and the semi-arc top support plate 22 are lifted and stretched, they can smoothly pass through other support units 1, effectively preventing the problem that the support structure is difficult to move.

[0033] Referring to Figure 1 and Figure 2 The two ends of the support base 20 arranged along the length direction are provided with matching locking parts 5; the connecting part 3 is connected with one of the side support parts 2, and detachably connected with the other side support part 2.

[0034] When assembling the support unit 1, two support bases 20 are placed in the roadway, and then the semi-arc support plates 22 are slidably connected to the corresponding support bases 20, one of the vertical sections of the support bases 20 abuts against the sidewall of the roadway, and then the other support base 20 is driven by the supporting part 4 to move until the vertical section abuts against the sidewall of the roadway, and then the semi-arc support plate 22 is driven upward by the pushing plate 25 until the upper end arc section of the semi-arc support plate 22 abuts against the top of the roadway, and then the pushing plate 25 is hung on the top of the vertical section of the support base 20 by the locking assembly 26, and the pushing plate 25 is integrally inserted and locked with the lower end of the inclined support rod 23 and the reinforcing plate 24, which not only improves the locking convenience of the semi-arc support plate 22 after being moved upward, but also integrally locks the semi-arc support plate 22 with the inclined support rod 23 and the reinforcing plate 24, so that the semi-arc support plate 22 and the inclined support rod 23 form an arch bridge-shaped stable structure, and the reinforcing plate 24 and the support base 20 form a triangular stable structure, thereby improving the support strength of the semi-arc support plate 22 and the support base 20, and then the two semi-arc support plates 22 are connected by the connecting part 3, so as to form a support unit 1 which supports the sidewall and the top of the roadway.

[0035] The plurality of support units 1 are sequentially locked and connected by the locking part 5 to form a temporary reinforcing support structure (as shown in Figure 1 The support structure is sequentially disassembled from the side of the support structure away from the tunneling direction, moved to the side of the support structure close to the tunneling direction, and installed.

[0036] When disassembling, the corresponding locking part 5 is unlocked to separate the adjacent two support units 1, and when disassembling, each part in the support unit 1 does not need to be disassembled, only the connecting part 3 and the supporting part 4 are unlocked to separate the two side support parts 2, and then the locking assembly 26 is unlocked to move the semi-arc support plate 22 downward, so as to realize the quick folding of the support unit 1, so that the side support part 2 moves from the remaining support units 1 to the tunneling direction, which not only avoids the complicated steps and low efficiency of the traditional support structure during disassembly and assembly, and the problem that the whole support structure cannot be carried, but also improves the convenience of assembling and disassembling the support unit 1, so that the assembly and disassembly and movement of the support structure can follow the tunneling speed in time, and provide stable temporary support effect for the roadway, and then the side support part 2 is moved and passes through other support units 1 to the side of the support structure close to the tunneling direction and is installed (as shown in Figure 5 .

[0037] Referring to Figure 2 , Figure 3 , Figure 8 and Figure 9The half-arc top supporting plate 22 is composed of a half-arc plate 220, a side abutting plate 221 and two end inserts 222. The bottom of the half-arc plate 220 is provided with a connecting plate 223. The side abutting plate 221 is horizontally and slidingly connected to the lower end of the half-arc plate 220 through the connecting plate 223. The end inserts 222 are fixedly installed at the lower end of the half-arc plate 220 and located at the two sides of the side abutting plate 221. Two guide sliding grooves 224 are arranged on the guide groove 21 along the length direction of the guide groove 21. Specifically, the end insert 222 is composed of a vertical plate and a T-shaped plate installed at the lower end of the vertical plate (as shown in Figure 7 The guide sliding groove 224 and the horizontal section of the T-shaped plate are both in T shape. The guide sliding groove 224 and the T-shaped plate are slidingly inserted. The side wall of the guide sliding groove 224 is provided with a taking and placing groove in communication with the guide sliding groove 224. The taking and placing groove is used for slidingly inserting the T-shaped plate into the guide sliding groove 224 to assemble the half-arc top supporting plate 22 and the supporting base 20.

[0038] Specifically, the pushing plate 25 is composed of a vertical plate and a plurality of horizontal plates. The supporting base 20 is provided with a lifting guide groove corresponding to the horizontal plate and slidingly connected to the horizontal plate. The lower end of the side abutting plate 221 is slidingly placed on the pushing plate 25. The lower end surface of the side abutting plate 221 is rollingly connected with a ball (not shown in the figure). The pushing plate 25 is slidingly matched with the lifting guide groove on the supporting base 20, which greatly improves the connecting and supporting effect between the pushing plate 25 and the supporting base 20.

[0039] When the supporting base 20 is abutted against the roadway, the half-arc top supporting plate 22 is moved upward by the pushing plate 25 until the top of the half-arc top supporting plate 22 is abutted against the top of the roadway.

[0040] Referring to Figure 4 The inclined supporting rod 23 is provided with an abutting member for abutting the side abutting plate 221 against the roadway when the inclined supporting rod 23 rotates. The abutting member includes an abutting rod 230 fixedly installed on the inclined supporting rod 23 and an abutting wheel 231 rotatingly connected to the abutting rod 230.

[0041] When the half-arc top supporting plate 22 is abutted against the top of the roadway, the inclined supporting rod 23 is rotated so that the lower end of the inclined supporting rod 23 is abutted against the top of the supporting base 20. When the inclined supporting rod 23 rotates, the abutting rod 230 drives the abutting wheel 231 to rotate. When the abutting wheel 231 is located at the position abutting the side abutting plate 221, the abutting wheel 231 pushes the side abutting plate 221 to abut against the side wall of the roadway, thereby supporting and reinforcing the side wall of the roadway. At the same time, the side abutting plate 221 is prevented from being abutted against the side wall of the roadway when the vertical section of the supporting base 20 is abutted against the side wall of the roadway, which makes it difficult to move the half-arc top supporting plate 22 upward and downward and affects the disassembly of the side supporting part 2.

[0042] Referring to Figure 4The buckle assembly 26 comprises two installation grooves 260 opened on the top of the push plate 25, the installation groove 260 is composed of a vertical section penetrating through the top of the push plate 25 and a horizontal section communicated with the vertical section, the horizontal section of the installation groove 260 is rotationally connected with a rotating rod 261, the rotating rod 261 is slidingly connected with a sliding plate 262, the sliding plate 262 is installed with a plug-in rod 263, after the push plate 25 pushes the half-arc top support plate 22 to abut against the top of the roadway, the sliding plate 262 cooperates with the plug-in rod 263 to buckle the plug-in rod 263 on the top of the support base 20, the reinforcing plate 24 and the inclined support rod 23 are all provided with plug-in holes matched with the plug-in rod 263, the plug-in hole penetrates through the inclined support rod 23, and the installation groove 260 is provided with a limiting piece 264 sliding up and down to limit the sliding plate 262.

[0043] In the initial state, the plug-in rod 263 is located on the top of the push plate 25, avoiding the interference of the push plate 25 with the up-and-down movement, at this time, the sliding plate 262 is vertically arranged on the vertical section of the installation groove 260, when the push plate 25 is fixed, the sliding plate 262 is rotated to be horizontally arranged and drives the plug-in rod 263 to rotate to the top of the vertical section of the support base 20, so that the push plate 25 is hooked on the support base 20 under the contact action of the plug-in rod 263 and the support base 20, and the push plate 25 is further limited, then the plug-in holes on the inclined support rod 23 and the reinforcing plate 24 are aligned, the sliding plate 262 is driven to move and is inserted into the plug-in hole, at this time, the sliding plate 262 is arranged in the horizontal section of the installation groove 260, the horizontal section of the installation groove 260 limits the sliding plate 262 on the two side walls, preventing the sliding plate 262 from rotating, specifically, the limiting piece 264 is a limiting rod sliding up and down on the push plate 25, when the plug-in rod 263 is inserted into the plug-in hole, the limiting rod moves downward to block and limit the side of the sliding plate 262 away from the inclined support rod 23, so that the push plate 25, the inclined support rod 23 and the reinforcing plate 24 are integrally locked and connected, and the limiting piece 264 limits the sliding plate 262.

[0044] Referring to Figure 2 The connecting part 3 comprises a middle connecting piece 30, the two sides of the middle connecting piece 30 arranged along the width direction thereof are square waves, the end of the half-arc top support plate 22 away from the support base 20 is also a square wave, the square wave structures on the half-arc top support plate 22 and the middle connecting piece 30 are staggered and inserted, the middle connecting piece 30 is hinged with one of the half-arc top support plates 22 and is detachably inserted with the other half-arc top support plate 22 through the fixed rod 31.

[0045] When the two half-arc top support plates 22 in the same support unit 1 are both fixed, the middle connecting piece 30 is rotated to be inserted with the square wave-shaped end face on the other half-arc top support plate 22, and then is inserted and fixed through the fixing rod 31. The two sides of the middle connecting piece 30 are connected with the corresponding half-arc top support plate 22 through the square wave-shaped end face, so that the middle connecting piece 30 has the same connecting end face area with the half-arc top support plate 22, thereby improving the connection stability and firmness of the middle connecting piece 30.

[0046] Referring to Figure 2 and Figure 3 , the supporting part 4 includes the clamping grooves 40 arranged on the horizontal sections of the two support bases 20, and the clamping grooves 40 on the two support bases 20 are staggered and clamped. The rectangular grooves 41 are arranged in the middle of the horizontal sections of the two support bases 20. One of the support bases 20 is provided with the hydraulic driving source two 42 (such as a hydraulic cylinder) arranged in the rectangular groove 41. The horizontal sections of the two support bases 20 are clamped by the clamping grooves 40, so that the two support bases 20 can move synchronously and be connected by being abutted by the support unit 1.

[0047] Referring to Figure 2 , Figure 5 and Figure 6 , the locking part 5 includes the limiting plug 50 arranged at one end of the horizontal section of the support base 20 and the limiting slot 51 arranged at the other end of the horizontal section of the support base 20. The connecting buckles 52 are arranged on the two sides of the vertical section of the support base 20 in a uniform manner from top to bottom. The plug-in holes 53 are arranged on the connecting buckles 52. The connecting buckles 52 on the two sides of the support base 20 are arranged in a staggered manner. When the two support bases 20 are connected, the connecting buckles 52 are aligned in a staggered manner, and then the locking rod 54 is inserted into the plug-in holes 53 to connect the two support bases 20.

[0048] After the two adjacent support units 1 are assembled, the connecting buckles 52 on the two support units 1 are arranged in a staggered manner and the plug-in holes 53 are aligned. Then, the limiting plug 50 is inserted into the limiting slot 51, and the two adjacent support units 1 are locked by the locking rod 54.

[0049] Referring to Figures 1-9The working principle is that when the support unit 1 is assembled, two support bases 20 are placed in the roadway, then the half-arc support plates 22 are slidably connected to the corresponding support bases 20, the vertical section of one of the support bases 20 is tightly abutted against the sidewall of the roadway, then the other support base 20 is driven to move until the vertical section is tightly abutted against the sidewall of the roadway by the supporting part 4, then the half-arc support plates 22 are driven to move upwards by the pushing plate 25 until the upper end arc section of the half-arc support plate 22 is abutted against the top of the roadway, then the pushing plate 25 is hung on the top of the vertical section of the support base 20 and is integrally inserted and locked with the lower end of the inclined support rod 23 and the reinforcing plate 24 by the buckling assembly 26, then the two half-arc support plates 22 are connected by the connecting part 3, so that a support unit 1 is formed, and the sidewall and the top of the roadway are supported.

[0050] The plurality of support units 1 are sequentially locked and connected by the locking part 5 to form a temporary reinforcing support structure, and the support unit 1 on the side away from the tunneling direction of the reinforcing support structure is sequentially disassembled and moved to the side close to the tunneling direction of the roadway and installed.

[0051] When disassembled, the corresponding locking part 5 is unlocked, so that the two adjacent support units 1 are separated, and when disassembled, each part in the support unit 1 does not need to be disassembled, only the connecting part 3 and the supporting part 4 are unlocked, so that the two side support parts 2 are separated, then the buckling assembly 26 is unlocked, so that the half-arc support plate 22 moves downwards, thereby improving the convenience of assembling and disassembling the support unit 1, so that the assembling and disassembling and moving of the support structure can timely follow the tunneling speed, and a stable temporary support effect is provided for the roadway, then the side support part 2 is moved and passes through other support units 1 to the side close to the tunneling direction of the support structure and is installed.

[0052] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0053] In addition, the terms "first", "second", "one", "two" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0054] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not limited to the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A temporary roadway reinforcement support structure for use in coal mining tunneling, consisting of a plurality of support units, characterized in that, Each support unit comprises two symmetrically arranged side support parts, a connecting part connecting the top of the two side support parts, and a counter-support part connecting the bottom of the two side support parts; The side support part comprises an L-shaped support base, a guide groove is formed in the vertical section of the support base, a semicircular top support plate is detachably connected to the guide groove and slides up and down, two inclined support rods are hinged to the side of the semicircular top support plate away from the support base, two reinforcing plates are arranged on the support base, a pushing plate is arranged on the vertical section of the support base and slides up and down to push the semicircular top support plate to move upwards, a locking assembly is arranged on the pushing plate to hang on the top of the vertical section of the support base, and the pushing plate, the lower end of the inclined support rod and the reinforcing plate are integrally inserted and locked; The two ends of the support base arranged along the length direction are provided with matched locking parts; the connecting part is connected with one of the side support parts and detachably connected with the other side support part. A plurality of support units are sequentially locked and connected through the locking parts to form a reinforced support structure, and the support units on the side away from the tunneling direction of the reinforced support structure are sequentially disassembled and moved to the side close to the tunneling direction and installed. The pushing plate is composed of a vertical plate and a plurality of horizontal plates, and the support base is provided with lifting guide grooves corresponding to the horizontal plates and in sliding connection with the horizontal plates, and the lower end of the side counter plate is slidably arranged on the pushing plate. The locking assembly comprises two installation grooves formed in the top of the pushing plate, a rotating rod is rotatably connected in the installation groove, a sliding plate is slidably connected to the rotating rod, a plug-in rod is installed on the sliding plate, and after the pushing plate pushes the semicircular top support plate against the top of the tunnel, the sliding plate and the plug-in rod cooperate to lock the plug-in rod on the top of the support base, and the reinforcing plate and the inclined support rod are both provided with plug-in holes matched with the plug-in rod, the plug-in holes penetrating the inclined support rod, and the installation groove is provided with a limiting piece sliding up and down to limit the sliding plate.

2. The temporary roadway reinforcing support structure for coal mining tunneling according to claim 1, characterized in that: The semicircular top support plate is composed of a semicircular plate, a side counter plate and two end inserts, the bottom of the semicircular plate is provided with a connecting plate, the side counter plate is horizontally and slidably connected to the lower end of the semicircular plate through the connecting plate, the end inserts are fixedly installed at the lower end of the semicircular plate and located on both sides of the side counter plate, guide sliding grooves are formed in the guide groove along the length direction, the guide sliding grooves are slidably connected with the end inserts, and the lower end of the side counter plate is slidably arranged on the pushing plate.

3. The temporary roadway reinforcing support structure for coal mining tunneling according to claim 1, characterized in that: The connecting part comprises a middle connecting piece, the two sides of the middle connecting piece arranged along the width direction are both square waves, the end of the semicircular top support plate away from the support base is also a square wave, the square wave structures on the semicircular top support plate and the middle connecting piece are staggered and inserted, the middle connecting piece is hinged with one of the semicircular top support plates and detachably connected with the other semicircular top support plate through a fixed rod.

4. The temporary roadway reinforcing support structure for coal mining tunneling of claim 1, wherein: The counter-support part comprises two clamping grooves formed in the horizontal sections of the two support bases, and the clamping grooves on the two support bases are staggered and clamped, rectangular recesses are formed in the middle of the horizontal sections of the two support bases, and a hydraulic drive source two is installed in the rectangular recess of one of the support bases.

5. The temporary roadway reinforcing support structure for use in coal mining tunneling according to claim 1, characterized in that: The locking part comprises a limiting plug block mounted at one end of a horizontal section of the support base, and a limiting slot formed at the other end of the horizontal section of the support base, and connecting buckles arranged uniformly from top to bottom are mounted on both sides of a vertical section of the support base, and a plug-in hole is formed in the connecting buckle, and the connecting buckles on both sides of the support base are arranged alternately, and when the two support bases are connected, the connecting buckles are alternately aligned, and the two support bases are connected by inserting the locking rod into the plug-in hole.

6. The temporary roadway reinforcement support structure for coal mining tunneling according to claim 1, characterized in that: The inclined support rod is provided with a pressing piece for pressing the side abutting plate against the roadway when the inclined support rod rotates.

7. The temporary roadway reinforcement support structure for use in coal mining tunneling according to claim 6, characterized in that: The pressing piece comprises an abutting rod fixedly mounted on the inclined support rod, and an abutting wheel rotatably connected to the abutting rod.

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