Mine tunnel supporting device for lead-zinc mining

Abstract

The utility model discloses a mine tunnel supporting device for lead-zinc mining, and relates to the technical field of mining engineering. The lifting device comprises a bottom plate, a lifting assembly is arranged on the upper surface of the bottom plate, the lifting assembly comprises a supporting column vertically connected to the upper middle portion of the bottom plate, a hollow column is arranged on the peripheral side of the supporting column in a sleeved mode, limiting blocks distributed at equal intervals are arranged on the two inner side walls of the hollow column, and hinged supporting blocks are arranged on the upper edges of the two side walls of the supporting column. The end of a reset spring connected to the side wall of the supporting block in parallel is connected to the side wall of the supporting column, and the upper surface of the supporting block is erected on the lower surface of the limiting block. A supporting assembly is arranged on the upper surface of the hollow column. The lifting assembly is arranged to support the mine tunnels with different heights, the practicability is improved, the supporting assembly is arranged, the stability of the movable plate and the supporting plate is improved, the stability effect of supporting the lead-zinc mine tunnels is improved, the lead-zinc mine tunnels with different sizes are supported, and the practicability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of mining engineering technology, and in particular relates to a mine tunnel support device for lead-zinc mining. Background Technology

[0002] The continuous updating of mining technology has increased the types of minerals that can be mined, such as coal, iron, copper, and lead-zinc. Before mining lead-zinc, it is necessary to dig a mine tunnel on the mine site. Miners enter the mine tunnel to mine lead-zinc. In order to increase the safety and stability of the mine tunnel, it is necessary to install mine tunnel support devices inside the mine tunnel, so that miners can mine lead-zinc in a more stable mine tunnel and improve the safety of miners during mining.

[0003] A search revealed a mine tunnel support device disclosed in patent document CN213775412U, but it still has the following shortcomings in practical use:

[0004] 1. The mine tunnel support device disclosed in the patent document with patent publication number CN213775412U has a support column on the upper surface of the support, and the support column has evenly distributed through holes. The support column is used to support the roof plate. However, it is inconvenient to adjust the height of the roof plate according to the actual height of the mine tunnel, and it is not convenient to support mine tunnels of different heights, which reduces its practicality.

[0005] 2. The mine tunnel support device disclosed in patent document CN213775412U has a threaded rod in the middle of the base plate, a threaded sleeve on the periphery of the threaded rod, and a top plate connected to the upper end of the threaded sleeve. The top plate is used to support the mine tunnel. However, the external dimensions of the top plate are fixed, making it inconvenient to adjust the external dimensions of the top plate according to the actual dimensions of the mine tunnel, which reduces the applicability and practicality. There is a vertically connected threaded sleeve in the lower middle of the top plate. During the adjustment of the top plate, only the threaded sleeve supports the top plate. After the top plate supports the mine tunnel, only the threaded sleeve supports the middle of the top plate, which reduces the stability at the edge of the top plate and reduces the stability effect of the top plate after supporting the mine tunnel.

[0006] To address these issues, we provide a mine tunnel support device for lead-zinc mining. Utility Model Content

[0007] The purpose of this utility model is to provide a mine tunnel support device for lead-zinc mining. By setting up a lifting component, the height of the hollow column can be easily adjusted according to the actual height of the mine tunnel, thus supporting mine tunnels of different heights and increasing practicality. Furthermore, by setting up a support component, the stability of the movable plate and the support plate is increased, improving the stability effect when supporting lead-zinc mine tunnels. This facilitates the support of lead-zinc mine tunnels of different sizes, further increasing practicality. In this way, it solves the technical problem mentioned in the background art of the mine tunnel support device disclosed in patent document CN213775412U.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0009] This utility model relates to a mine tunnel support device for lead-zinc mining, comprising a base plate. The device is characterized in that: a lifting assembly is provided on the upper surface of the base plate; the lifting assembly includes a support column vertically connected to the center of the base plate; hollow columns are sleeved around the periphery of the support column; equidistant limiting blocks are distributed on both inner side walls of the hollow columns; hinged support blocks are located on the upper edges of both side walls of the support column; the ends of return springs connected parallel to the side walls of the support blocks are connected to the side walls of the support columns; and the upper surface of the support blocks rests on the lower surface of the limiting blocks. A support assembly is provided on the upper surface of the hollow columns; the support assembly includes a support plate parallel to the upper surface of the hollow columns; and the support plate has a pair of... The movable plate is described as having a rectangular array of guide rails connected on its other two side walls. Symmetrically connected sliding rods are located on the side walls of the movable plate, and these sliding rods are slidably connected inside the guide rails. Inclined connecting cylinders are located on the lower edges of the two outer side walls of the hollow column. Connecting columns are sleeved inside the connecting cylinders. A shaft pin is parallelly sleeved on the lower section of the side wall of the connecting cylinder. A lug, rotatably connected to the circumference of the shaft pin, is fixed to the lower edge of the outer side wall of the hollow column. A shaft pin is parallelly sleeved on the upper section of the side wall of the connecting column. A lug, rotatably connected to the circumference of the shaft pin, is connected to the lower surface edge of the movable plate. Equally spaced threaded holes are located on the circumference of the connecting column. Bolts threaded to the upper section of the side wall of the connecting cylinder are threaded into these threaded holes.

[0010] The present invention is further configured such that there are vertically threaded tapered rods at the corners of the upper surface of the base plate, and the four tapered rods are arranged in a rectangular array.

[0011] The present invention is further configured such that a connecting rope is provided on the side wall of the support block, the free end of the rope penetrates the side wall of the support column, and the free end of the rope penetrates the side wall of another support block.

[0012] The present invention is further configured such that the hollow column has grooves on its side wall, and the two grooves are arranged diagonally opposite each other.

[0013] The present invention is further configured such that the support plate has symmetrically opened grooves on both sides of the side wall, and the extension plate fixed to the side wall of the movable plate is inserted into the inside of the groove.

[0014] The present invention is further configured such that the cross-section of the guide rail is a T-groove structure, the slide rod is a T-shaped structure, the length of the guide rail is equal to the length of the movable plate, and the length of the slide rod is twice the length of the movable plate.

[0015] The present invention is further configured such that the upper end of the connecting cylinder has a threaded sleeve, the upper end of the connecting post penetrates the middle of the threaded sleeve, and a circular block fixed to the lower end of the connecting post is sleeved inside the connecting cylinder, wherein the outer diameter of the connecting post is half the outer diameter of the circular block.

[0016] The present invention is further configured such that one end of the shaft pin has a screw connected by a parallel thread, and the head of the screw abuts against the side wall of the lug seat.

[0017] This utility model has the following beneficial effects:

[0018] This invention features a lifting assembly that pushes a hollow column upwards. As the hollow column moves upwards, a return spring contracts or extends, causing the support block to move in an arc. When the return spring contracts, it releases the support block from the limiting block. When the return spring extends, the support block re-supports the limiting block. When the two ropes are pulled, the return spring contracts, the support block moves closer to the support column, and the support block is released from the limiting block, causing the hollow column to move downwards. When the ropes are released, the support block moves back to its original position and re-supports the limiting block. This allows for easy adjustment of the hollow column's height according to the actual height of the mine tunnel, thus facilitating support for mine tunnels of different heights, increasing its applicability and improving its practicality.

[0019] This utility model, by setting up a support assembly, allows for the loosening of screws and bolts clockwise, pushing and pulling the connecting column, which moves the column. The upper end of the connecting column moves in an arc around the pivot pin, and the lower end of the connecting cylinder also moves in an arc around the pivot pin. This adjusts the tilt angle of the connecting column and the connecting cylinder, ensuring that they always support the movable plate. Furthermore, the connecting column, connecting cylinder, movable plate, and hollow column form a triangular structure, increasing the stability of the movable plate and support plate, thus enhancing the stability when supporting lead-zinc mine tunnels and improving the safety of miners during lead-zinc mining operations. Pushing and pulling the movable plate moves the extension plate and sliding rod, adjusting the distance between the movable plate and the support plate, and changing the total length of the two movable plates and the support plate. This facilitates support for lead-zinc mine tunnels of different sizes, increasing its applicability and improving its practicality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0021] Figure 1 A three-dimensional schematic diagram of a mine tunnel support device for lead-zinc mining;

[0022] Figure 2 This is a structural schematic diagram of the lifting assembly;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 4 A schematic diagram showing the connection of the support column, support block, return spring, and rope;

[0025] Figure 5 This is an exploded view of the support plate and the movable plate;

[0026] Figure 6 A schematic diagram showing the connection between the connecting cylinder, connecting column, movable plate, and hollow column. Figure 1 ;

[0027] Figure 7 A schematic diagram showing the connection between the connecting cylinder, connecting column, movable plate, and hollow column. Figure 2 .

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1-Base plate, 101-Conical rod, 102-Ear block, 102a-Screw rod, 102b-Support seat, 103-Self-locking caster wheel, 2-Lifting assembly, 201-Support column, 202-Hollow column, 202a-Wire groove, 202b-Limit block, 203-Rope, 204-Support block, 204a-Reset spring, 3-Support assembly, 301-Connecting cylinder, 302-Connecting column, 303-Ear seat, 303a-Shaft pin, 303b-Screw, 304-Bolt, 304a-Threaded hole, 305-Threaded sleeve, 306-Support plate, 306a-Guide rail, 306b-Groove, 307-Modible plate, 307a-Slide rod, 307b-Extension plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0031] Please see Figure 1 This utility model is a mine tunnel support device for lead-zinc mining, including a base plate 1 and a cone rod 101. The cone rod 101 is used to lock the position of the base plate 1 on the ground of the lead-zinc mine tunnel.

[0032] Specifically, the upper surface of the base plate 1 has a connecting tapered rod 101;

[0033] Furthermore, a rectangular array of four cone rods 101 is set up;

[0034] The operation process of this embodiment is as follows: after moving the base plate 1 to the position supporting the lead-zinc mine tunnel, rotate the cone rod 101 counterclockwise until the cone rod 101 is inserted into the ground. After rotating the cone rod 101 clockwise, the locking of the base plate 1 on the ground of the lead-zinc mine tunnel is released. Example 2

[0035] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 Based on the first specific embodiment, a lifting assembly 2 is provided. The lifting assembly 2 includes a support column 201, a hollow column 202, a limiting block 202b, a rope 203, a support block 204, and a return spring 204a. When the hollow column 202 is pulled upward, the hollow column 202 moves upward. The setting of the return spring 204a causes the support block 204 to move in an arc shape during the movement of the hollow column 202, preventing the limiting block 202b from blocking the upward movement of the hollow column 202. When the two ropes 203 are pulled, the support block 204 moves closer to the support column 201, releasing the support block 204 from supporting the limiting block 202b, which facilitates the downward movement of the hollow column 202. This allows for easy adjustment of the height of the hollow column 202 according to the actual height of the mine tunnel, increasing its practicality.

[0036] Specifically, the support column 201 is vertically connected to the center of the upper surface of the base plate 1. A hollow column 202 is sleeved on the outer periphery of the support column 201. A wire groove 202a is opened on the side wall of the hollow column 202. A limiting block 202b is fixedly connected on the inner side wall of the hollow column 202. A hinged support block 204 is connected to the upper edge of the side wall of the support column 201. A return spring 204a is connected to the side wall of the support block 204 near the support column 201. The end of the return spring 204a is connected to the side wall of the support column 201. The upper surface of the support block 204 rests on the lower surface of the limiting block 202b. A rope 203 is connected to the side wall of the support block 204. The free end of the rope 203 passes through the side wall of the support column 201 and the other support block 204 in sequence.

[0037] Furthermore, the two wire grooves 202a are arranged diagonally opposite each other, there are two sets of limit blocks 202b, and the two sets of limit blocks 202b are arranged symmetrically, the two support blocks 204 are arranged symmetrically, and the two reset springs 204a are arranged symmetrically.

[0038] The operation process of this embodiment is as follows: The hollow column 202 is pushed upwards, moving closer to the top of the mine tunnel. When the support block 204 contacts the side wall of the limiting block 202b, the return spring 204a contracts, and the support block 204 moves in an arc around the hinge as a fixed point, moving closer to the support column 201. This effectively prevents the limiting block 202b from blocking the upward movement of the hollow column 202. When the support block 204 is not in contact with the side wall of the current limiting block 202b, the contracted return spring 204a extends, and the upper surface of the support block 204 rests on the lower surface of the next-level limiting block 202b. When the hollow column 202 needs to move downwards, the two ropes 203 are pulled, the return spring 204a contracts, and the support block 204 moves closer to the support column 201, releasing the obstruction of the limiting block 202b on the support block 204. The hollow column 202 is then pulled downwards, moving downwards. Example 3

[0039] Please see Figure 1 , Figure 5 , Figure 6 and Figure 7 Based on specific embodiments one and two, a reinforcement component 3 is provided. The reinforcement component 3 includes a connecting cylinder 301, a connecting column 302, an ear seat 303, a shaft pin 303a, a screw 303b, a bolt 304, and a threaded sleeve 305. Pushing and pulling the connecting column 302 adjusts the length of the connecting column 302 that moves out of the connecting cylinder 301, thereby facilitating the support of the movable plate 307 after the position adjustment, improving the stability of the movable plate 307 and the support plate 306, and thus improving the stability when supporting the lead-zinc mine tunnel. Pushing and pulling the movable plate 307 adjusts the total length of the two movable plates 307 and the support plate 306, making it suitable for supporting lead-zinc mine tunnels of different sizes, increasing the scope of application, and improving practicality.

[0040] Specifically, the hollow column 202 has an inclined connecting cylinder 301 on its side. The lower end of the side wall of the connecting cylinder 301 has a parallel-sleeved pin 303a. The circumference of the pin 303a is rotatably connected to a lug 303 at the lower edge of the outer side wall of the connecting cylinder 301. Inside the connecting cylinder 301 is a sleeved circular block. The upper center of the circular block has a vertically connected connecting column 302. The upper end of the connecting cylinder 301 has a threaded sleeve 305. The upper end of the connecting column 302 passes through the middle of the sleeve 305. The upper section of the side wall of the connecting cylinder 301 has a parallel-threaded bolt 304. The circumference of the connecting column 302 has a threaded hole 304a. The bolt 304 is threaded into the threaded hole 304a. The upper section of the side wall of the connecting column 302 is parallel-sleeved... The shaft pin 303a has a rotatably connected lug 303 on its periphery, and the lug 303 is connected to the lower edge of the movable plate 307. One end of the shaft pin 303a has a screw 303b with parallel thread connection. The head of the screw 303b abuts against the side wall of the lug 303. The upper end of the hollow column 202 has a connected support plate 306. The width side wall of the support plate 306 has a groove 306b. The length side wall of the support plate 306 has a fixed guide rail 306a. The width side wall of the movable plate 307 has a fixed extension plate 307b. The extension plate 307b is inserted into the groove 306b. The length side wall of the movable plate 307 has a fixed slide rod 307a. The slide rod 307a is slidably connected to the inside of the guide rail 306a.

[0041] Furthermore, the two connecting cylinders 301 are symmetrically arranged, the screw holes 304a are equally spaced, the two movable plates 307 are symmetrically arranged, the four guide rails 306a are arranged in a rectangular array, the four slide rods 307a are arranged in a rectangular array, and the two grooves 306b are symmetrically arranged. The cross-section of the guide rail 306a is a T-groove structure, and the slide rod 307a is a T-shaped structure.

[0042] The operation process of this embodiment is as follows: Loosen screw 303b and bolt 304 clockwise, pull connecting column 302, connecting column 302 moves upward, the upper end of connecting column 302 moves in an arc around the pivot pin 303a, the lower end of connecting cylinder 301 moves in an arc around the pivot pin 303a, the movable plate 307 gradually moves away from the support plate 306, after pushing connecting column 302, movable plate 307 gradually moves closer to support plate 306, after tightening screw 303b and bolt 304 counterclockwise, movable plate 307, connecting cylinder 301... The positions of 1 and connecting column 302 are locked; when the movable plate 307 is pulled, the extension plate 307b gradually moves out of the interior of the groove 306b, the slide bar 307a gradually moves out of the interior of the guide rail 306a, and the movable plate 307 moves away from the support plate 306. When the movable plate 307 is pushed, the extension plate 307b gradually enters the interior of the groove 306b, and the movable plate 307 moves closer to the support plate 306 until the total length of the two movable plates 307 and the support plate 306 meets the dimensions of the lead-zinc mine tunnel.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A mine tunnel support device for lead-zinc mining, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is provided with a lifting assembly (2). The lifting assembly (2) includes a support column (201) vertically connected to the middle of the base plate (1). Hollow columns (202) are sleeved around the support column (201). There are equidistant limiting blocks (202b) on both inner side walls of the hollow column (202). There are hinged support blocks (204) on the upper edges of both side walls of the support column (201). The end of the return spring (204a) connected in parallel on the side wall of the support block (204) is connected to the side wall of the support column (201). The upper surface of the support block (204) rests on the lower surface of the limiting block (202b). The upper surface of the hollow column (202) is provided with a support assembly (3), which includes a support plate (306) connected in parallel to the upper surface of the hollow column (202). The support plate (306) has symmetrically arranged movable plates (307) on both sides. The other two side walls of the support plate (306) have guide rails (306a) connected in a rectangular array. The two side walls of the movable plates (307) have symmetrically connected sliding rods (307a), which are slidably connected inside the guide rails (306a). The lower edges of the two outer side walls of the hollow column (202) have inclined connecting cylinders (301). The inner... The connecting column (302) is sleeved on the lower section of the side wall of the connecting cylinder (301), and a shaft pin (303a) is sleeved on the lower section of the side wall. The ear seat (303) rotatably connected to the circumference of the shaft pin (303a) is fixed at the lower edge of the outer side wall of the hollow column (202). The upper section of the side wall of the connecting column (302) has a shaft pin (303a) sleeved on the upper section of the side wall. The ear seat (303) rotatably connected to the circumference of the shaft pin (303a) is connected to the lower edge of the movable plate (307). The connecting column (302) has screw holes (304a) opened at equal intervals on the circumference. The bolt (304) threaded on the upper section of the side wall of the connecting cylinder (301) is threadedly connected to the screw hole (304a).

2. The mine tunnel support device for lead-zinc mining according to claim 1, characterized in that: The upper surface of the base plate (1) has vertically threaded tapered rods (101) at the corners, and the four tapered rods (101) are arranged in a rectangular array.

3. A mine tunnel support device for lead-zinc mining according to claim 1, characterized in that: The support block (204) has a connecting rope (203) on its side wall. The free end of the rope (203) passes through the side wall of the support column (201) and the free end of the rope (203) passes through the side wall of another support block (204).

4. A mine tunnel support device for lead-zinc mining according to claim 1, characterized in that: The hollow column (202) has a groove (202a) on its side wall, and the two grooves (202a) are arranged diagonally opposite each other.

5. A mine tunnel support device for lead-zinc mining according to claim 1, characterized in that: The support plate (306) has symmetrically opened grooves (306b) on both sides of the side wall, and the extension plate (307b) fixed to the side wall of the movable plate (307) is inserted into the inside of the groove (306b).

6. A mine tunnel support device for lead-zinc mining according to claim 1, characterized in that: The guide rail (306a) has a T-shaped groove structure in its cross section, and the slide rod (307a) has a T-shaped structure. The length of the guide rail (306a) is equal to the length of the movable plate (307), and the length of the slide rod (307a) is twice the length of the movable plate (307).

7. A mine tunnel support device for lead-zinc mining according to claim 1, characterized in that: The upper end of the connecting cylinder (301) has a threaded sleeve (305), the upper end of the connecting column (302) passes through the middle of the threaded sleeve (305), and the lower end of the connecting column (302) is fixed to a circular block that is sleeved inside the connecting cylinder (301). The outer diameter of the connecting column (302) is half the outer diameter of the circular block.

8. A mine tunnel support device for lead-zinc mining according to claim 1, characterized in that: One end of the pin (303a) has a screw (303b) with parallel threaded connection, and the head of the screw (303b) abuts against the side wall of the lug (303).

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