Supporting device for coal mine goaf

Abstract

The utility model relates to the technical field of coal mine collection and protection, in particular to a coal mine goaf supporting device which comprises a prefabricated arch plate, a plurality of supporting rods, a first connecting plate, an auxiliary plate, a second connecting plate, two supporting pieces, an arc-shaped plate and an abutting mechanism. A supporting plate is arranged on the two supporting legs, the abutting mechanism comprises two rotary knob screw rods and an arc-shaped block, two limiting rings are arranged on the rotary knob screw rods, two supporting blocks are arranged on the inner side of the arc-shaped block, two threaded blocks are arranged on the inner side of a second connecting plate, and a plurality of supporting rods are supported through a slidable auxiliary plate; the supporting rods can be conveniently, rapidly and accurately inserted into the first connecting plate, meanwhile, the arc-shaped block is fixed through the two rotary knob screw rods, then movement of the multiple supporting rods can be limited, and fixing can be completed in a simple and convenient mode.

Description

Technical Field

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

[0002] Due to the need to mine and transport underground coal resources during the coal mining process, generally in the process of excavation, a method similar to the mountain tunnel on the road is used to gradually open up the tunnel between the underground coal location and the coal mine entrance. This tunnel is a roadway, and the coal mine goaf roadway support device is used to reinforce the roadway in the goaf to prevent danger during mining operations; today's coal mine goaf roadway support devices generally use scaffolding support, stone masonry, anchor mesh spraying support, grouting sealing and reinforcement, etc. The installation process of these reinforcement methods is relatively complicated and time-consuming. During the installation of the support device, gravel may fall from the top of the tunnel, especially when there is a goaf, which may cause local landslides. Therefore, the lack of necessary safety protection leads to great safety hazards during the installation of the support device.

[0003] The prior art patent CN214836455U discloses a support device for a coal mine goaf, comprising a plurality of groups of support frames arranged equidistantly, wherein the two ends of two adjacent groups of support frames are connected in a one-to-one assembly manner through edge support plates, and a prefabricated arch plate is slidably installed above the edge support plate; the support frame comprises a pair of support columns and a connecting plate connected between the pair of support columns, and a plurality of support rods are built between two adjacent connecting plates and below the prefabricated arch plate, and the prefabricated arch plate slides in sequence along the coal mine excavation direction to form a temporary support built by the support rods; the prior art forms temporary protection by sliding the prefabricated arch plates in sequence along the coal mine excavation direction to avoid safety hazards caused by falling gravel and the like, and technicians can build support rods below the prefabricated arch plates to ensure the safety of the technicians.

[0004] However, in the above-mentioned prior art, since there is a certain distance between the two connecting plates, it is impossible to accurately insert the support rod into the through hole of the other connecting plate. At the same time, the support rod is fastened by a nut, which is too complicated. Utility Model Content

[0005] The purpose of the utility model is to provide a support device for a coal mine goaf, aiming to solve the technical problem in the prior art that due to a certain distance between two connecting plates, the support rod cannot be accurately inserted into the through hole of the other connecting plate, and at the same time, the support rod is fastened by a nut, and the operation method is too cumbersome.

[0006] To achieve the above-mentioned purpose, the utility model adopts a support device for a coal mine goaf, comprising a prefabricated arch plate, a plurality of support rods, a first connecting plate, an auxiliary plate, a second connecting plate, two support members, an arc plate and a supporting mechanism, wherein the support rod is provided with two first limit blocks and a second limit block, the second connecting plate has a plurality of through holes, the through holes are connected with the first limit holes, the support member comprises two support legs, the two support legs are provided with a supporting plate, the support plate has a convex groove, the end surface of the arc plate has a plurality of circular grooves, the circular grooves are connected with the second limit holes, the prefabricated arch plate contacts with the corresponding support rods, covers the plurality of support rods, and also supports the support plate, the plurality of support rods are respectively inserted into the first connecting plate through the corresponding through holes, and penetrate the auxiliary plate, and the first limit block is supported on the first limit hole. On the auxiliary plate, multiple support rods are also respectively inserted into the circular groove, and the second limit block is located in the second limit hole, the arc plate abuts the second connecting plate, the first connecting plate and the second connecting plate are both arranged in the convex groove, the auxiliary plate is slidably arranged in the convex groove, and is also located between the first connecting plate and the second connecting plate, the abutting mechanism includes two knob screws and an arc block, two limit rings are arranged on the knob screw, two support blocks are arranged on the inner side of the arc block, and two threaded blocks are arranged on the inner side of the second connecting plate, the two knob screws are respectively rotatably connected to the corresponding support blocks and are located on the support blocks, and the two limit rings are respectively in contact with the support blocks and are located on both sides of the support block, the two knob screws are also respectively threadedly connected to the corresponding threaded blocks and are located in the threaded blocks.

[0007] Wherein, the supporting mechanism further includes an arc pad, which is bonded to the arc block and located on the end surface of the arc block. The arc pad also supports the arc plate and is located on the other end surface of the arc plate.

[0008] Wherein, a plurality of positioning rods are arranged on the arc-shaped pad, and the plurality of positioning rods are respectively plugged into the arc-shaped plate and located inside the arc-shaped plate.

[0009] Wherein, the supporting device for the coal mine goaf also includes a plurality of fixing parts, and the plurality of fixing parts are respectively fixedly connected to the corresponding supporting legs and are located below the supporting legs.

[0010] Among them, the fixing part includes a rotating head, a conical screw and a fixing plate, the rotating head has a polygonal groove, the rotating head is fixedly connected to the conical screw and is located above the conical screw, the conical screw is rotatably connected to the fixing plate and is located inside the fixing plate, and the fixing plate is fixedly connected to the supporting leg and is located below the supporting leg.

[0011] Wherein, first protrusions are provided at both ends of the first connecting plate and the second connecting plate, second protrusions are provided at both ends of the auxiliary plate, and the first protrusions are fixedly connected to the corresponding supporting plates by bolts and are located in the convex grooves, and the second protrusions are slidably connected to the corresponding supporting plates and are located in the convex grooves, and are also located between the first connecting plate and the second connecting plate.

[0012] The utility model discloses a supporting device for a coal mine goaf, comprising a prefabricated arch plate, a plurality of support rods, a first connecting plate, an auxiliary plate, a second connecting plate, two supporting members, an arc plate and a holding mechanism, wherein the supporting rods are provided with two first limit blocks and a second limit block, the second connecting plate is provided with a plurality of through holes, the through holes are connected with the first limit holes, the supporting member comprises two supporting legs, the two supporting legs are provided with supporting plates, the supporting plates are provided with convex grooves, the end surface of the arc plate is provided with a plurality of circular grooves, the circular grooves are connected with the second limit holes, The limiting hole, the supporting mechanism includes two knob screws and an arc block, two limiting rings are arranged on the knob screw, two supporting blocks are arranged on the inner side of the arc block, and two threaded blocks are arranged on the inner side of the second connecting plate. The plurality of support rods are supported by the slidable auxiliary plate, so that the support rods can be inserted into the first connecting plate quickly and accurately. At the same time, the arc block is fixed by the two knob screws, thereby limiting the movement of the plurality of support rods, so that the fixation can be completed in a simple and convenient way. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 1 It is a side view of the first embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the first embodiment of the utility model.

[0016] Figure 3 It is a schematic diagram of the split structure of the first embodiment of the utility model.

[0017] Figure 4 The utility model Figure 3 A partial enlarged view of point A in the middle.

[0018] Figure 5The utility model Figure 3 A partial enlarged view of point B in the middle.

[0019] Figure 6 The utility model Figure 3 A partial enlarged view of point C in the middle.

[0020] Figure 7 The utility model Figure 3 A partial enlarged view of point D in the middle.

[0021] Figure 8 It is a three-dimensional stereogram of the second embodiment of the utility model.

[0022] Fig. 9 It is a front view of the second embodiment of the utility model.

[0023] Fig.10 The utility model Fig. 9 Cross-sectional view along line EE.

[0024] 101-prefabricated arch plate, 102-support rod, 103-first connecting plate, 104-auxiliary plate, 105-second connecting plate, 106-arc plate, 107-first limiting block, 108-second limiting block, 109-through hole, 110-first limiting hole, 111-support leg, 112-support plate, 113-convex groove, 114-circular groove, 115-second limiting hole, 116-knob screw, 117-arc block, 118-limiting ring, 119-support block, 120-threaded block, 121-arc pad, 122-positioning rod, 201-rotating head, 202-conical screw, 203-fixing plate, 204-polygonal groove, 205-first protrusion, 206-second protrusion. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] First embodiment:

[0027] See also Figure 1 to Figure 7 ,in Figure 1 is a side view of the first embodiment of the utility model, Figure 2 This is a schematic diagram of the internal structure of the first embodiment of the utility model. Figure 3 This is a schematic diagram of the split structure of the first embodiment of the utility model. Figure 4 The utility model Figure 3 A partial enlarged view of the middle A. Figure 5 The utility model Figure 3 A partial enlarged view of point B in the middle. Figure 6 The utility model Figure 3 A partial enlarged view of point C in the middle. Figure 7 The utility model Figure 3 A partial enlarged view of point D in the middle.

[0028] The utility model provides a supporting device for a coal mine goaf, comprising a prefabricated arch plate 101, a plurality of support rods 102, a first connecting plate 103, an auxiliary plate 104, a second connecting plate 105, two support members, an arc plate 106 and a supporting mechanism, wherein the supporting mechanism comprises two knob screws 116, an arc block 117 and an arc pad 121. The above-mentioned scheme solves the problem that the supporting rod cannot be accurately inserted into the through hole of the other connecting plate due to a certain distance between the two connecting plates, and at the same time, the technical problem that the supporting rod is fastened by a nut fixing method and the operation method is too cumbersome.

[0029] According to the present specific embodiment, the support rod 102 is provided with two first limit blocks 107 and a second limit block 108, the second connecting plate 105 is provided with a plurality of through holes 109, the through holes 109 are connected with the first limit holes 110, the supporting member includes two supporting legs 111, the two supporting legs 111 are provided with a supporting plate 112, the supporting plate 112 has a convex groove 113, the end surface of the arc plate 106 has a plurality of circular grooves 114, the circular grooves 114 are connected with the second limit holes 115, the prefabricated arched plate 101 is in contact with the corresponding support rods 102, and covers the plurality of support rods 102, and also abuts against the supporting plate 112, and the plurality of support rods 102 are respectively plugged into the first connecting plate 10 through the corresponding through holes 109 3, and passes through the auxiliary plate 104, and the first limiting block 107 is supported on the auxiliary plate 104 through the first limiting hole 110, and the plurality of support rods 102 are also respectively inserted into the circular groove 114, and the second limiting block 108 is located in the second limiting hole 115, the arc plate 106 is supported by the second connecting plate 105, the first connecting plate 103 and the second connecting plate 105 are both arranged in the convex groove 113, the auxiliary plate 104 is slidably arranged in the convex groove 113, and is also located between the first connecting plate 103 and the second connecting plate 105, and the plurality of support rods 102 are supported by the slidable auxiliary plate 104, so that the support rods 102 can be quickly and accurately inserted into the first connecting plate 103.

[0030] Among them, two limit rings 118 are arranged on the knob screw 116, two support blocks 119 are arranged on the inner side of the arc block 117, and two threaded blocks 120 are arranged on the inner side of the second connecting plate 105. The two knob screws 116 are rotatably connected with the corresponding support blocks 119 respectively and are located on the support blocks 119, and the two limit rings 118 are in contact with the support blocks 119 respectively and are located on both sides of the support blocks 119. The two knob screws 116 are also threadedly connected with the corresponding threaded blocks 120 respectively and are located in the threaded blocks 120. The arc block 117 is fixed by the two knob screws 116, thereby limiting the movement of the plurality of support rods 102, thereby completing the fixation in a simple and convenient way.

[0031] Secondly, the arc pad 121 is bonded to the arc block 117 and is located on the end face of the arc block 117. The arc pad 121 also abuts against the arc plate 106 and is located on the other end face of the arc plate 106. The arc pad 121 can improve the fixing effect of the arc plate 106 and can also provide a certain degree of protection for the arc plate 106.

[0032] Again, a plurality of positioning rods 122 are provided on the arc pad 121, and the plurality of positioning rods 122 are respectively plugged into the arc plate 106 and located inside the arc plate 106. The positioning rods 122 can improve the stability of the arc block 117, thereby preventing the arc block 117 from detaching from the arc plate 106.

[0033] When using the utility model, by placing the two supporting legs 111 in appropriate positions, and then placing the first connecting plate 103, the auxiliary plate 104 and the second connecting plate 105 between the two supporting plates 112 in sequence, and making the auxiliary plate 104 close to one end of the second connecting plate 105, and then inserting a plurality of the support rods 102 into the arc plate 106, and making the second limiting block 108 located in the second limiting hole 115, at this time, inserting a plurality of the support rods 102 into the through hole 109 through the arc plate 106, and continuously pushing the arc plate 106, so that the support rods 102 pass through the auxiliary plate 104 and are inserted into the first connecting plate 103, and at the same time When the first limit is pressed against the auxiliary plate 104 through the first limit hole 110, the auxiliary plate 104 can be used to make the support rod 102 move smoothly and accurately insert into the first connecting plate 103. Finally, the arc block 117 is pressed against the other end face of the arc plate 106 and fastened by the knob screw 116. Then the prefabricated arch plate 101 is covered on the plurality of support rods 102. In this way, the problem of being unable to accurately insert the support rod into the through hole of another connecting plate due to a certain distance between the two connecting plates is solved. At the same time, the support rod is fastened by a nut, and the operation method is too complicated.

[0034] The second embodiment is:

[0035] Based on the first embodiment, please refer to Figure 8 to Figure 10 ,in Figure 8 It is a three-dimensional stereogram of the second embodiment of the utility model. Fig. 9 It is a front view of the second embodiment of the utility model. Fig.10 The utility model Fig. 9 Cross-sectional view along line EE.

[0036] The utility model provides a supporting device for a coal mine goaf, which also includes a plurality of fixing parts. The fixing parts include a rotating head 201 , a conical screw rod 202 and a fixing plate 203 .

[0037] According to this specific embodiment, the plurality of fixing members are respectively fixedly connected to the corresponding supporting legs 111 and are located below the supporting legs 111 .

[0038] Among them, the rotating head 201 has a polygonal groove 204, the rotating head 201 is fixedly connected to the conical screw 202 and is located above the conical screw 202, the conical screw 202 is rotatably connected to the fixing plate 203 and is located in the fixing plate 203, the fixing plate 203 is fixedly connected to the supporting leg 111 and is located below the supporting leg 111, by installing a rod body adapted to the polygonal groove 204 on the output end of the electric drill, and inserting the rod body into the polygonal groove 204, starting the electric drill, so that the rotating head 201 drives the conical screw 202 to rotate, and the conical screw 202 is inserted into the ground, thereby fixing the supporting leg 111.

[0039] Secondly, both ends of the first connecting plate 103 and the second connecting plate 105 are provided with first protrusions 205, and both ends of the auxiliary plate 104 are provided with second protrusions 206, and the first protrusions 205 are fixedly connected to the corresponding supporting plates 112 by bolts and are located in the convex grooves 113, and the second protrusions 206 are slidably connected to the corresponding supporting plates 112 and are located in the convex grooves 113, and are also located between the first connecting plate 103 and the second connecting plate 105. By fixing the first protrusions 205 in the supporting plates 112 with bolts, the stability of the first connecting plate 103 and the second connecting plate 105 can be improved. At the same time, the second protrusions 206 are slidably set in the supporting plates 112, which can facilitate the auxiliary plate 104 to lift the support rod 102 and move with the support rod 102.

[0040] A support device for a coal mine goaf area using the present embodiment is provided by installing a rod body adapted to the polygonal groove 204 at the output end of an electric drill, inserting the rod body into the polygonal groove 204, starting the electric drill, causing the rotating head 201 to drive the conical screw 202 to rotate, and the conical screw 202 is inserted into the ground, thereby fixing the support leg 111. The first protrusion 205 is fixed to the support plate 112 with bolts, which can improve the stability of fixing the first connecting plate 103 and the second connecting plate 105. At the same time, the second protrusion 206 is slidably set in the support plate 112, which can facilitate the auxiliary plate 104 to lift the support rod 102 and move with the support rod 102.

[0041] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A support device for a coal mine goaf, comprising a prefabricated arched plate, a plurality of support rods, a first connecting plate, an auxiliary plate, a second connecting plate, two support members and an arc plate, wherein the support rods are provided with two first limit blocks and a second limit block, the second connecting plate has a plurality of through holes, the through holes are connected with the first limit holes, the support member comprises two support legs, the two support legs are provided with support plates, the support plates have convex grooves, the end surface of the arc plate has a plurality of circular grooves, the circular grooves are connected with the second limit holes, the prefabricated arched plate contacts the corresponding support rods and covers the plurality of said The plurality of support rods are respectively inserted into the first connecting plate through the corresponding through holes and penetrate the auxiliary plate, and the first limit block is pressed against the auxiliary plate through the first limit hole. The plurality of support rods are also respectively inserted into the circular groove, and the second limit block is located in the second limit hole. The arc plate presses against the second connecting plate. The first connecting plate and the second connecting plate are both arranged in the convex groove. The auxiliary plate is slidably arranged in the convex groove and is also located between the first connecting plate and the second connecting plate. It is characterized in that It also includes supporting institutions; The supporting mechanism includes two knob screws and an arc block, two limit rings are arranged on the knob screw, two support blocks are arranged on the inner side of the arc block, and two threaded blocks are arranged on the inner side of the second connecting plate. The two knob screws are rotatably connected with the corresponding support blocks and are located on the support blocks, and the two limit rings are in contact with the support blocks and are located on both sides of the support blocks. The two knob screws are also threadedly connected with the corresponding threaded blocks and are located in the threaded blocks.

2. The support device for coal mine goaf according to claim 1, characterized in that: The abutting mechanism further comprises an arc pad, which is bonded to the arc block and located on the end surface of the arc block. The arc pad also abuts against the arc plate and is located on the other end surface of the arc plate.

3. The support device for coal mine goaf according to claim 2, characterized in that: A plurality of positioning rods are arranged on the arc pad, and the plurality of positioning rods are respectively plugged with the arc plate and located inside the arc plate.

4. The support device for coal mine goaf according to claim 3, characterized in that: The supporting device for the coal mine goaf also includes a plurality of fixing parts, which are respectively fixedly connected to the corresponding supporting legs and are located below the supporting legs.

5. The support device for coal mine goaf according to claim 4, characterized in that: The fixing member includes a rotating head, a conical screw and a fixing plate. The rotating head has a polygonal groove therein. The rotating head is fixedly connected to the conical screw and is located above the conical screw. The conical screw is rotatably connected to the fixing plate and is located inside the fixing plate. The fixing plate is fixedly connected to the supporting leg and is located below the supporting leg.

6. The supporting device for coal mine goaf according to claim 5, characterized in that: Both ends of the first connecting plate and the second connecting plate are provided with a first protrusion, both ends of the auxiliary plate are provided with a second protrusion, and the first protrusion is fixedly connected to the corresponding supporting plate by bolts and is located in the convex groove, and the second protrusion is slidably connected to the corresponding supporting plate and is located in the convex groove, and is also located between the first connecting plate and the second connecting plate.

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