Underground mine temporary supporting device

Abstract

The utility model discloses a temporary supporting device for an underground mine, which belongs to the technical field of underground mine mining and comprises three inserting bottom plates. A fixing assembly is arranged, a positioning mechanism on one supporting column is attached to the side wall of the other supporting column, then an inserting rod can be driven to be movably inserted into an inserting hole in a first edge block, then a rotating screw rod is rotated to rotate and move along the inserting rod, the rotating screw rod moves to push a first wedge block to move, and then the first wedge block is driven to move. A first wedge-shaped block moves to drive a moving strip to move and a second wedge-shaped block to move, the second wedge-shaped block moves to drive a moving block and a convex block to move, the moving block and the moving strip move to drive a second spring to stretch, an inserting rod and a first edge block can be limited and fixed through the convex block, and then the two positioning mechanisms can be limited and fixed; the connection stability of the two positioning mechanisms is guaranteed, and then the positioning effect of the positioning mechanisms can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground mine mining, and particularly relates to a temporary support device for underground mines. Background Technique

[0002] An underground mine is a production and operation unit that extracts mineral resources by underground mining methods. The production process of an underground mine is to excavate shafts and tunnels from the surface to reach the ore body, divide the ore body into several stages (or panels), and then divide each stage (panel) into many ore blocks (ribs), and extract each ore block and stage in a certain order.

[0003] Chinese Patent Application No. 202321430917.6 discloses a temporary support structure for underground mines, including a first support column. On the middle part of the outer peripheral side wall of the first support column, ear seats are symmetrically connected before and after. On the other side wall of the first support column, a hydraulic rod end connected to the outer ends of a first hydraulic cylinder and a second hydraulic cylinder connected from front to back is connected to a second hinge. The first hinges connected to the inner ends of the first hydraulic cylinder and the second hydraulic cylinder are sequentially connected to the other side wall of the first support column from front to back; the outer end of a horizontal shaft fixedly connected to the outer side wall of a second arc-shaped positioning block connected to the lower edge of the outer side wall of a second support column connected to the upper surface of the first support column is fixedly connected with a first arc-shaped positioning block. By setting the horizontal shaft, the first arc-shaped positioning block and the second arc-shaped positioning block, the utility model facilitates the splicing of adjacent temporary support structures, and by setting the first hydraulic cylinder, the second hydraulic cylinder, the first hinge, the second hinge and the ear seat, the support effect on the top of the underground mine is improved.

[0004] In the above patent, the second arc-shaped positioning block on one of the first support columns is directly attached to the side wall of another first support column, but there is no limit fixation between the second arc-shaped positioning block and the other first support column, resulting in poor positioning effect of the second arc-shaped positioning block and affecting the connection stability of the two first support columns; in addition, after inserting a square plate into the ground by using a tapered insertion shaft, it is necessary to pull the square plate separately to realize the disassembly operation of the first support column, and the operation is cumbersome, increasing the labor burden of the staff. Content of the Utility Model

[0005] To solve the problems raised in the above background technique. The utility model provides a temporary support device for underground mines, which has the characteristics of limit fixation and plug-in drive.

[0006] To achieve the above object, the utility model provides the following technical solutions: An underground mine temporary support device includes a plug-in bottom plate. There are three plug-in bottom plates in total, which are arranged in sequence from left to right. A support column is connected above the plug-in bottom plate. A positioning mechanism is arranged on the side wall of the support column. A top support mechanism is arranged above the support column. A plug-in component is arranged between two adjacent plug-in bottom plates, and a fixing component is arranged between two adjacent positioning mechanisms.

[0007] Preferably, the fixing component includes a plug-in rod, a first side block, a second side block, a plug-in hole, a convex block, and a telescopic driving member. Second side blocks are connected to both sides of one end of one positioning mechanism, and first side blocks are connected to both sides of one end of the other positioning mechanism. A plug-in rod is connected to the side of the second side block close to the first side block. A plug-in hole is arranged at the position corresponding to the plug-in rod on the first side block. Convex blocks are arranged on both sides of one end of the plug-in hole close to the first side block. A telescopic driving member is arranged between the plug-in rod and the convex block.

[0008] Preferably, the telescopic driving member includes a moving groove, a first wedge block, a second spring, a moving block, a cavity, a second wedge block, a rotating screw, and a moving strip. Second wedge blocks are connected to both ends of the two convex blocks close to each other. A first wedge block is arranged between the two second wedge blocks. A cavity is arranged at the position corresponding to the first wedge block and the second wedge block on the plug-in rod. A moving block is connected to one end of the second wedge block. Moving strips are connected to both sides of one end of the first wedge block. Moving grooves are arranged on the side wall of the cavity at the positions corresponding to the moving block and the moving strip. Second springs are connected between the moving block and the moving groove and between the moving strip and the moving groove. A rotating screw is connected to one end of the plug-in rod.

[0009] Preferably, a guiding column is connected inside the moving groove, and guiding holes are arranged at the positions corresponding to the guiding column on the moving block and the moving strip.

[0010] Preferably, the plug-in component includes a fixing frame, a U-shaped frame, a first spring, and a moving rod. U-shaped frames are connected to both ends of the plug-in bottom plate. A fixing frame is connected to the side wall of one of the U-shaped frames. A moving rod is inserted into the fixing frame. A first spring is connected between the fixing frame and the moving rod.

[0011] Preferably, the plug-in component further includes a positioning screw and a threaded hole. A threaded hole is arranged at one end of the fixing frame. A positioning screw is connected inside the threaded hole. A lapping groove is arranged on the inner side wall of the fixing frame at the position corresponding to the positioning screw.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The present utility model is provided with a fixing component. The positioning mechanism on one of the support columns fits against the side wall of the other support column, and then it can drive the insertion rod to move and be inserted into the insertion hole on the first side block. Then, rotate the rotating screw rod so that it rotates and moves along the insertion rod. The moving of the rotating screw rod pushes the first wedge block to move. The moving of the first wedge block drives the moving bar and the second wedge block to move. The moving of the second wedge block drives the moving block and the convex block to move. The moving of the moving block and the moving bar stretches the second spring. The convex block can be used to limit and fix the insertion rod and the first side block, and then the two positioning mechanisms can be limited and fixed, ensuring the stability of the connection between the two positioning mechanisms, and further ensuring the positioning effect of the positioning mechanism.

[0014] 2. The present utility model is provided with an insertion component. Rotate and remove the positioning screw rod from the threaded hole. The first spring loses the external force and resumes its original shape, driving the moving rod to move out of the fixed frame and be inserted into the U-shaped frame on another insertion bottom plate. Then, move the moving rod upward. The upward movement of the moving rod drives the two U-shaped frames to move upward. The upward movement of the two U-shaped frames drives the two insertion bottom plates to move away from the ground of the underground mine, facilitating the simultaneous upward movement operation of the two insertion bottom plates, and further facilitating the disassembly operation of the two devices, reducing the labor burden of the staff and improving the labor efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a sectional view of the present utility model;

[0017] Figure 3 is a partial sectional view of the connection state of two positioning mechanisms of the present utility model;

[0018] Figure 4 is of the present utility model Figure 3 a sectional view taken along the A-A direction;

[0019] Figure 5 is a partial sectional view of the insertion rod of the present utility model;

[0020] Figure 6 is a sectional view of the connection state between the fixed frame and the U-shaped frame of the present utility model;

[0021] Figure 7 is of the present utility model Figure 6 a sectional view taken along the B-B direction.

[0022] In the figure: 1. Top support mechanism; 2. Positioning mechanism; 3. Plug-in component; 31. Fixed frame; 32. U-shaped frame; 33. First spring; 34. Moving rod; 35. Positioning screw; 36. Threaded hole; 4. Plug-in bottom plate; 5. Support column; 6. Fixing component; 61. Plug-in rod; 62. First side block; 63. Second side block; 64. Plug-in hole; 65. Convex block; 66. Telescopic driving part; 661. Moving groove; 662. First wedge-shaped block; 663. Second spring; 664. Moving block; 665. Cavity; 666. Second wedge-shaped block; 667. Rotating screw; 668. Moving strip. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment 1

[0025] Please refer to Figures 1-7 , the present invention provides the following technical solutions: An underground mine temporary support device includes a plug-in bottom plate 4. There are three plug-in bottom plates 4 in total, which are arranged in sequence from left to right. A support column 5 is connected above the plug-in bottom plate 4. A positioning mechanism 2 is arranged on the side wall of the support column 5. A top support mechanism 1 is arranged above the support column 5. A plug-in component 3 is arranged between two adjacent plug-in bottom plates 4. A fixing component 6 is arranged between two adjacent positioning mechanisms 2.

[0026] Specifically, the fixing component 6 includes a plug-in rod 61, a first side block 62, a second side block 63, a plug-in hole 64, a convex block 65 and a telescopic driving part 66. Second side blocks 63 are connected to both sides of one end of one positioning mechanism 2, and first side blocks 62 are connected to both sides of one end of the other positioning mechanism 2. A plug-in rod 61 is connected to the side of the second side block 63 close to the first side block 62. A plug-in hole 64 is arranged on the first side block 62 at a position corresponding to the plug-in rod 61. Convex blocks 65 are arranged on both sides of one end of the plug-in hole 64 close to the first side block 62. A telescopic driving part 66 is arranged between the plug-in rod 61 and the convex block 65.

[0027] By adopting the above technical solution, after the two plug-in bottom plates 4 are inserted side by side under the ground of the underground mine, the two positioning mechanisms 2 are attached to each other, and then the plug-in rod 61 can be driven to move and be inserted into the plug-in hole 64 on the first side block 62. Then, the telescopic driving member 66 is used to drive the two bumps 65 to move away from each other. The bumps 65 can be used to limit and fix the plug-in rod 61 and the first side block 62, and then the two positioning mechanisms 2 can be limited and fixed, ensuring the stability of the connection between the two positioning mechanisms 2, and further ensuring the positioning effect of the positioning mechanism 2.

[0028] Specifically, the telescopic driving member 66 includes a moving groove 661, a first wedge block 662, a second spring 663, a moving block 664, a cavity 665, a second wedge block 666, a rotating screw 667 and a moving strip 668. Second wedge blocks 666 are connected to the mutually approaching ends of the two bumps 65. A first wedge block 662 is arranged between the two second wedge blocks 666. A cavity 665 is arranged on the plug-in rod 61 at positions corresponding to the first wedge block 662 and the second wedge block 666. A moving block 664 is connected to one end of the second wedge block 666. Moving strips 668 are connected to both sides of one end of the first wedge block 662. Moving grooves 661 are arranged on the side wall of the cavity 665 at positions corresponding to the moving block 664 and the moving strips 668. Second springs 663 are connected between the moving block 664 and the moving grooves 661 and between the moving strips 668 and the moving grooves 661. A rotating screw 667 is connected to one end of the plug-in rod 61.

[0029] By adopting the above technical solution, the rotating screw 667 is rotated to move it along the plug-in rod 61. The moving of the rotating screw 667 pushes the first wedge block 662 to move. The moving of the first wedge block 662 drives the moving strips 668 to move and the second wedge block 666 to move. The moving of the second wedge block 666 drives the moving block 664 and the bumps 65 to move. The moving of the moving block 664 and the moving strips 668 drives the second springs 663 to stretch, facilitating the telescopic movement operation of the bumps 65.

[0030] Specifically, a guiding column is connected inside the moving groove 661. Guiding holes are arranged on the moving block 664 and the moving strips 668 at positions corresponding to the guiding column.

[0031] By adopting the above technical solution, during the movement of the moving block 664 and the moving strips 668, under the guiding cooperation of the guiding column and the guiding holes, it can provide a guiding effect for the movement of the moving block 664 and the moving strips 668, improving the stability of the movement of the moving block 664 and the moving strips 668.

[0032] When this embodiment is in use, first insert a plugging bottom plate 4 into the ground under the underground mine, and then adjust the positional relationship between the support column 5 and the top support mechanism 1 so that the top support mechanism 1 fits against the top of the underground mine. Use the top support mechanism 1 to support the top of the underground mine. Then, insert another plugging bottom plate 4 side by side into the ground under the underground mine, and make the positioning mechanism 2 on one of the support columns 5 fit against the side wall of the other support column 5. Further, the plugging rod 61 can be driven to move and be inserted into the plugging hole 64 on the first side block 62. Then, rotate the rotating screw 667 so that it rotates and moves along the plugging rod 61. The moving of the rotating screw 667 pushes the first wedge block 662 to move. The moving of the first wedge block 662 drives the moving strip 668 to move and the second wedge block 666 to move. The moving of the second wedge block 666 drives the moving block 664 and the convex block 65 to move. The moving of the moving block 664 and the moving strip 668 drives the second spring 663 to stretch. The convex block 65 can be used to limit and fix the plugging rod 61 and the first side block 62. Further, the two positioning mechanisms 2 can be limited and fixed, ensuring the stability of the connection between the two positioning mechanisms 2. Further, the positioning effect of the positioning mechanism 2 can be ensured. Then, adjust the positional relationship between the support column 5 and the top support mechanism 1 so that the top support mechanism 1 fits against the top of the underground mine. Then, according to the size of the top of the underground mine to be supported, select an appropriate number of plugging bottom plates 4 and insert them into the ground under the underground mine, and use the top support mechanism 1 to support the top of the underground mine;

[0033] Embodiment 2

[0034] The difference between this embodiment and Embodiment 1 is that the plugging assembly 3 includes a fixed frame 31, a U-shaped frame 32, a first spring 33 and a moving rod 34. Both ends of the plugging bottom plate 4 are connected with U-shaped frames 32. A fixed frame 31 is connected to the side wall of one of the U-shaped frames 32. A moving rod 34 is inserted into the fixed frame 31. A first spring 33 is connected between the fixed frame 31 and the moving rod 34.

[0035] Specifically, the plugging assembly 3 further includes a positioning screw 35 and a threaded hole 36. A threaded hole 36 is provided at one end of the fixed frame 31. A positioning screw 35 is connected inside the threaded hole 36. A lapping groove is provided on the inner side wall of the fixed frame 31 at the position corresponding to the positioning screw 35.

[0036] By adopting the above technical solution, after moving the moving rod 34 into the fixed frame 31, then screw the positioning screw 35 into the threaded hole 36 and the lapping groove. Under the action of the positioning screw 35, the moving rod 34 can be limited, ensuring the stability of the placement of the moving rod 34 and the fixed frame 31.

[0037] When this embodiment is in use and there is no need to support the top of the underground mine, first adjust the distance between the top support mechanism 1 and the support column 5 so that the top support mechanism 1 is away from the top of the underground mine. Then, rotate and remove the positioning screw 35 from the internal thread hole 36. The first spring 33 loses the external force and returns to its original state, driving the moving rod 34 to move out of the fixing frame 31 and insert into the U-shaped frame 32 on another plug-in bottom plate 4. Then, move the moving rod 34 upward. The upward movement of the moving rod 34 drives the two U-shaped frames 32 to move upward, and the upward movement of the two U-shaped frames 32 drives the two plug-in bottom plates 4 to move away from the ground of the underground mine, facilitating the upward movement operation of the two plug-in bottom plates 4 at the same time, and further facilitating the disassembly operation of the two devices, reducing the labor burden of the staff and improving the labor efficiency of the staff.

[0038] In the present utility model, the structure and principle of the top support mechanism 1 composed of a placement groove, a third hydraulic cylinder, a second support column, a third hinge, a fourth hydraulic cylinder, a fourth hinge, a lower connecting plate, a second bolt, an upper connecting plate, a lower open-ended sleeve, and an extension plate have been disclosed in a temporary support structure for underground mines with Chinese patent application number 202321430917.6. Its working principle is as follows: An installation groove is provided on the upper surface of the support column 5. The inner lower side wall of the installation groove is connected to a third hydraulic cylinder. The output end of the third hydraulic cylinder is connected to a second support column. Both sides of the second support column are connected to a lower connecting plate. The lower connecting plate and the second support column are connected by a second bolt. The end of the second support column is provided with an upper connecting plate. A lower open-ended sleeve is provided on the side wall of the upper connecting plate corresponding to the position of the second support column. An extension plate is connected between the lower connecting plate and the upper connecting plate. When in use, start the third hydraulic cylinder, use the third hydraulic cylinder to drive the second support column to move upward, and the upward movement of the second support column drives the lower connecting plate and the upper connecting plate to move upward. When the upper connecting plate moves and fits against the top of the underground mine, stop the third hydraulic cylinder and use the upper connecting plate to support the top of the underground mine.

[0039] The structure and principle of the positioning mechanism 2 composed of a horizontal axis, a first arc-shaped positioning block, and a second arc-shaped positioning block in the present utility model have been disclosed in a temporary support structure for underground mines with a Chinese patent application number of 202321430917.6. Its working principle is as follows: A second arc-shaped positioning block is connected to the outer sidewall of the support column 5. One end of the horizontal axis is connected to the side of the second arc-shaped positioning block away from the support column 5, and one end of the horizontal axis away from the second arc-shaped positioning block is connected to the first arc-shaped positioning block. During use, after inserting one of the plug-in bottom plates 4 into the ground of the underground mine, under the action of the second arc-shaped positioning block and the horizontal axis, the first arc-shaped positioning block can be placed in the internal environment of the underground mine. Then, insert the other plug-in bottom plate 4 into the ground of the underground mine, and make the first arc-shaped positioning block located in the internal environment of the underground mine fit against the sidewall of the support column 5. Use the first arc-shaped positioning block that is first inserted onto the support column 5 in the underground mine to position the sidewall of the support column 5 that is later inserted into the underground mine, and perform a positioning operation on the later inserted support column 5.

[0040] Working principle and usage process of the present utility model: First, insert a plug-in bottom plate 4 into the ground under the underground mine, and then adjust the positional relationship between the support column 5 and the top support mechanism 1 so that the top support mechanism 1 fits against the top of the underground mine. Use the top support mechanism 1 to support the top of the underground mine. Then, insert another plug-in bottom plate 4 side by side into the ground under the underground mine, and make the positioning mechanism 2 on one support column 5 fit against the side wall of the other support column 5. Thus, it can drive the insertion rod 61 to move and insert into the insertion hole 64 on the first side block 62. Then, rotate the rotating screw 667 so that it rotates and moves along the insertion rod 61. The movement of the rotating screw 667 pushes the first wedge block 662 to move. The movement of the first wedge block 662 drives the movement of the moving bar 668 and the second wedge block 666. The movement of the second wedge block 666 drives the moving block 664 and the convex block 65 to move. The movement of the moving block 664 and the moving bar 668 drives the stretching of the second spring 663. Use the convex block 65 to limit and fix the insertion rod 61 and the first side block 62. Thus, it can limit and fix the two positioning mechanisms 2, ensure the stability of the connection between the two positioning mechanisms 2, and further ensure the positioning effect of the positioning mechanism 2. Then, adjust the positional relationship between the support column 5 and the top support mechanism 1 so that the top support mechanism 1 fits against the top of the underground mine. Then, according to the size of the top of the underground mine to be supported, select an appropriate number of plug-in bottom plates 4 and insert them into the ground under the underground mine, and use the top support mechanism 1 to support the top of the underground mine. When there is no need to support the top of the underground mine, first adjust the distance between the top support mechanism 1 and the support column 5 so that the top support mechanism 1 moves away from the top of the underground mine. Then, rotate and remove the positioning screw 35 from the threaded hole 36. The first spring 33 returns to its original shape under the loss of external force, drives the moving rod 34 to move out of the fixed frame 31 and insert into the U-shaped frame 32 on another plug-in bottom plate 4. Then, move the moving rod 34 upward. The upward movement of the moving rod 34 drives the upward movement of the two U-shaped frames 32. The upward movement of the two U-shaped frames 32 drives the movement of the two plug-in bottom plates 4 away from the ground of the underground mine, facilitating the simultaneous upward movement operation of the two plug-in bottom plates 4. Thus, it is convenient to realize the disassembly operation of the two devices, reduce the labor burden of the staff, and improve the labor efficiency of the staff.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A temporary support device for an underground mine, comprising a plug-in base plate (4), wherein three plug-in base plates (4) are provided in total, and the three plug-in base plates (4) are arranged in sequence from left to right, a support column (5) is connected above the plug-in base plate (4), a positioning mechanism (2) is provided on the side wall of the support column (5), and a top support mechanism (1) is provided above the support column (5), characterized in that: A plug-in assembly (3) is arranged between two adjacent plug-in base plates (4), and a fixing assembly (6) is arranged between two adjacent positioning mechanisms (2).

2. The temporary support device for underground mines according to claim 1, characterized in that: The fixing assembly (6) comprises a plug-in rod (61), a first side block (62), a second side block (63), a plug-in hole (64), a protrusion (65) and a telescopic driving member (66), wherein both sides of one end of one positioning mechanism (2) are connected to the second side block (63), and both sides of one end of the other positioning mechanism (2) are connected to the first side block (62); a side of the second side block (63) close to the first side block (62) is connected to the plug-in rod (61); a plug-in hole (64) is provided on the first side block (62) at a position corresponding to the plug-in rod (61); protrusions (65) are provided on both sides of one end of the plug-in hole (64) close to the first side block (62); and a telescopic driving member (66) is provided between the plug-in rod (61) and the protrusion (65).

3. The temporary support device for underground mines according to claim 2, characterized in that: The telescopic driving member (66) comprises a moving groove (661), a first wedge block (662), a second spring (663), a moving block (664), a cavity (665), a second wedge block (666), a rotating screw (667) and a moving bar (668), the ends of the two protrusions (65) close to each other are connected to the second wedge block (666), the first wedge block (662) is arranged between the two second wedge blocks (666), and the positions on the plug-in rod (61) corresponding to the first wedge block (662) and the second wedge block (666) are A cavity (665) is provided, one end of the second wedge block (666) is connected to a moving block (664), one end of the first wedge block (662) is connected to moving bars (668) on both sides, a moving groove (661) is provided on the side wall of the cavity (665) and at a position corresponding to the moving block (664) and the moving bar (668), a second spring (663) is connected between the moving block (664) and the moving groove (661) and between the moving bar (668) and the moving groove (661), and one end of the plug-in rod (61) is connected to a rotating screw (667).

4. A temporary support device for underground mines according to claim 3, characterized in that: A guide column is connected to the interior of the moving groove (661), and guide holes are provided on the moving block (664) and the moving bar (668) at positions corresponding to the guide column.

5. The temporary support device for underground mines according to claim 1, characterized in that: The plug-in assembly (3) comprises a fixed frame (31), a U-shaped frame (32), a first spring (33) and a moving rod (34); both ends of the plug-in base plate (4) are connected to the U-shaped frames (32); a fixed frame (31) is connected to a side wall of one of the U-shaped frames (32); a moving rod (34) is plugged into the interior of the fixed frame (31); and a first spring (33) is connected between the fixed frame (31) and the moving rod (34).

6. The temporary support device for underground mines according to claim 5, characterized in that: The plug-in assembly (3) further comprises a positioning screw (35) and a threaded hole (36); one end of the fixed frame (31) is provided with a threaded hole (36); the interior of the threaded hole (36) is connected with the positioning screw (35); and a lap groove is provided on the inner side wall of the fixed frame (31) at a position corresponding to the positioning screw (35).

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