Underground hydraulic support

Abstract

The invention relates to the technical field of basalt hydraulic supports, and discloses an underground hydraulic support which comprises a basalt bottom plate, and a support auxiliary mechanism is arranged in the basalt bottom plate. The support auxiliary mechanism comprises a sliding rod, a sliding sleeve, a first fixing plate, a second fixing plate, a basalt drill rod, universal wheels, a limiting sleeve, a limiting rod, a spring, a connecting block, a limiting groove, a control plate, a connecting sleeve, a connecting rod, a first clamping sleeve, a clamping column, a connecting base, a second clamping sleeve, a threaded base and a threaded control rod. According to the underground hydraulic support, the support auxiliary mechanism is arranged in the basalt bottom plate, and the universal wheels can extend out of the basalt bottom plate when needed, so that the underground hydraulic support is convenient to move; when the hydraulic support needs to be moved, an operator rotates the threaded control rod clockwise to enable the first fixing plate and the second fixing plate to slide downwards along the sliding rod until the universal wheels make contact with the ground and lift the basalt bottom plate, and therefore the hydraulic support is easy to move, the operation process is simplified, the burden of miners is relieved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of basalt hydraulic supports, in particular to an underground hydraulic support. Background Art

[0002] Underground hydraulic supports are essential key equipment in the mining process of coal, basalt and other mineral resources. They are mainly used to support and maintain the roof of the basalt underground working face to ensure the safety and stability of the tunnel. They prevent basalt rock from collapsing by providing continuous pressure, creating a relatively safe working environment for miners. Traditional hydraulic supports usually include main components such as bottom plate, hydraulic rods, top beam and tail beam, which together constitute a solid support system.

[0003] However, existing underground hydraulic supports have some design defects. Some hydraulic supports are difficult to move flexibly and deploy quickly due to their complex structure, large size and heavy weight, which brings inconvenience to miners' operation and may delay production progress. At the same time, although other hydraulic supports take mobility issues into consideration during design and achieve better transportability by adding moving wheels and other measures, this is often at the expense of equipment stability. In actual work, this type of hydraulic support may be displaced due to changes in surface conditions or external forces, which not only reduces work efficiency but also may cause safety hazards. Therefore, we propose an underground hydraulic support. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an underground hydraulic support having the advantages of convenient mobility and strong stability, and solves some design defects of the existing underground hydraulic supports. Some hydraulic supports are difficult to move flexibly and deploy quickly due to their complex structure, large size and heavy weight, which brings inconvenience to miners' operation and may delay production progress; at the same time, although other hydraulic supports are designed with mobility issues in mind and achieve better transportability by adding moving wheels and other measures, this is often at the expense of the stability of the equipment. In actual work, this type of hydraulic support may be displaced due to changes in surface conditions or the action of external forces, which not only reduces work efficiency but also may cause safety hazards.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of convenient movement and strong stability, the present invention provides the following technical solutions: an underground hydraulic support, comprising a basalt bottom plate, a hydraulic rod is arranged on the top of the basalt bottom plate, a basalt top beam and a basalt tail beam are arranged on the top of the hydraulic rod, and a support auxiliary mechanism is arranged inside the basalt bottom plate;

[0008] The bracket auxiliary mechanism includes a sliding rod, a sliding sleeve, a first fixed plate, a second fixed plate, a basalt drill pipe, a universal wheel, a limiting sleeve, a limiting rod, a spring, a connecting block, a limiting groove, a control plate, a connecting sleeve, a connecting rod, a first clamping sleeve, a clamping column, a connecting seat, a second clamping sleeve, a threaded seat and a threaded control rod. Two sliding rods are fixedly installed inside the basalt bottom plate, and the outsides of the two sliding rods are slidably connected with sliding sleeves. The outside of one of the sliding sleeves is fixedly installed with the first fixed plate, and the outside of the other sliding sleeve is fixedly installed with the second fixed plate. The bottom of the first fixed plate is fixedly installed with a basalt drill pipe, the bottom of the second fixed plate is fixedly installed with a universal wheel, and the top of the second fixed plate A limiting sleeve is fixedly installed on the inside of the limiting sleeve, a limiting rod is fixedly installed on the inside of the limiting sleeve, a spring is sleeved on the outside of the limiting rod, a connecting block is slidably connected to the outside of the limiting rod, a limiting groove is provided on the front of the limiting sleeve, a control plate is fixedly installed on the outside of the connecting block, a connecting sleeve is sleeved on the outside of the limiting rod, a connecting rod is fixedly installed on the outside of the connecting sleeve, a first clamping sleeve is fixedly installed on the outside of the connecting rod, a clamping column is fixedly installed on the outside of the first clamping sleeve, a connecting seat is fixedly installed on the top of the first fixing plate, a second clamping sleeve is fixedly installed on the outside of the connecting seat, a threaded seat is fixedly installed on the top of the basalt bottom plate, and a threaded control rod is rotatably connected to the top of the connecting seat.

[0009] Preferably, three accommodating inner cavities are opened inside the basalt bottom plate, two support auxiliary mechanisms are arranged inside each of the accommodating inner cavities, and each of the accommodating inner cavities is a front-to-back through-structure.

[0010] Preferably, the left side of the first fixing plate fits with the right side of the second fixing plate, and the size of the first fixing plate is the same as that of the second fixing plate, and an extension hole compatible with the basalt drill rod and the universal wheel is provided at the bottom of the basalt bottom plate.

[0011] Preferably, one end of the spring is fixedly connected to the inner wall of the limiting sleeve, the other end of the spring is fixedly connected to the connecting block, and one end of the connecting block away from the spring is fixedly connected to the connecting sleeve.

[0012] Preferably, the height of the limiting sleeve is the same as that of the connecting seat, and clamping columns are fixedly installed on both the front and rear sides of the first clamping sleeve, and the first clamping sleeve is clamped with the second clamping sleeve via the clamping columns.

[0013] Preferably, the first clamping sleeve and the second clamping sleeve have the same size, and the outside of the control board passes through the limiting groove and extends to the outside of the limiting sleeve.

[0014] Preferably, the top of the threaded control rod passes through the inner top wall and the threaded seat of the basalt bottom plate and extends to the top of the basalt bottom plate, and the threaded control rod is threadedly connected to the threaded seat.

[0015] Preferably, the distance between the bottom of the universal wheel and the inner bottom wall of the basalt bottom plate is smaller than the distance between the bottom of the basalt drill rod and the inner bottom wall of the basalt bottom plate.

[0016] A method for using a downhole hydraulic support, comprising a downhole hydraulic support, and further comprising the following steps:

[0017] S1. When the hydraulic support needs to be moved, the operator rotates the threaded control rod clockwise to cause the first fixed plate and the second fixed plate to slide down along the sliding rod until the universal wheel passes through the extension hole at the bottom of the basalt bottom plate and touches the ground, and lifts the basalt bottom plate. At this time, the hydraulic support is in a movable state;

[0018] S2. After the hydraulic support is moved to the predetermined location, first, rotate the threaded control rod counterclockwise to lift the first fixing plate and the second fixing plate until the universal wheels leave the ground, and at the same time ensure that the basalt bottom plate is close to the ground;

[0019] S3: Then, the operator pulls the control plate in a direction away from the first fixing plate, so that the spring is compressed and the first clamping sleeve is separated from the second clamping sleeve;

[0020] S4. Finally, the threaded control rod is rotated clockwise again to cause the first fixing plate and the basalt drill rod to move downward, and the basalt drill rod is made to penetrate deep into the ground, thereby enhancing the overall stability of the hydraulic support.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides a downhole hydraulic support having the following beneficial effects:

[0023] 1. The underground hydraulic support is provided with a support auxiliary mechanism in the basalt bottom plate, so that the universal wheel can extend out of the basalt bottom plate when needed, so as to facilitate movement; when movement is required, the operator rotates the threaded control rod clockwise to make the first fixed plate and the second fixed plate slide down along the sliding rod until the universal wheel contacts the ground and lifts the basalt bottom plate, so that the hydraulic support is easy to move, the operation process is simplified, the burden on miners is reduced, and production efficiency is improved.

[0024] 2. The downhole hydraulic support can be inserted into the ground after being in place through the basalt drill rod provided to enhance stability; after the hydraulic support is moved into place, the first fixing plate and the second fixing plate are lifted by rotating the threaded control rod counterclockwise to make the universal wheel separate from the ground and ensure that the basalt bottom plate is close to the ground, and then the control plate compression spring is pulled to separate the first clamping sleeve from the second clamping sleeve, and then the threaded control rod is rotated clockwise to push the basalt drill rod deep into the ground, thereby enhancing the overall stability, avoiding displacement caused by changes in external conditions, and improving safety and efficiency; and, since most of the components in the present invention are made of basalt material, their weight can be reduced by more than 50% compared with components made of materials such as steel; in a humid environment, the basalt fiber material is resistant to acid and alkali corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the plane structure of the present invention;

[0026] Figure 2 It is a partial three-dimensional schematic diagram of the support auxiliary mechanism of the present invention;

[0027] Figure 3 For the present invention Figure 1 A is an enlarged schematic diagram;

[0028] Figure 4 For the present invention Figure 1 The enlarged schematic diagram of point B in FIG.

[0029] Figure 5 It is a schematic diagram of the planar structure of the first clamping sleeve and the second clamping sleeve of the present invention.

[0030] In the figure: 1. basalt bottom plate; 2. hydraulic rod; 3. basalt top beam; 4. basalt tail beam; 5. bracket auxiliary mechanism; 501. sliding rod; 502. sliding sleeve; 503. first fixed plate; 504. second fixed plate; 505. basalt drill rod; 506. universal wheel; 507. limiting sleeve; 508. limiting rod; 509. spring; 510. connecting block; 511. limiting groove; 512. control board; 513. connecting sleeve; 514. connecting rod; 515. first clamping sleeve; 516. clamping column; 517. connecting seat; 518. second clamping sleeve; 519. threaded seat; 520. threaded control rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-5 , a downhole hydraulic support, comprising a basalt bottom plate 1, a hydraulic rod 2 is arranged on the top of the basalt bottom plate 1, a basalt top beam 3 and a basalt tail beam 4 are arranged on the top of the hydraulic rod 2, and a support auxiliary mechanism 5 is arranged inside the basalt bottom plate 1;

[0033] The support auxiliary mechanism 5 includes a sliding rod 501, a sliding sleeve 502, a first fixing plate 503, a second fixing plate 504, a basalt drill rod 505, a universal wheel 506, a limiting sleeve 507, a limiting rod 508, a spring 509, a connecting block 510, a limiting groove 511, a control board 512, a connecting sleeve 513, a connecting rod 514, a first clamping sleeve 515, a clamping column 516, a connecting seat 517, a second clamping sleeve 518, a threaded seat 519 and a threaded seat 510. The control rod 520, the basalt bottom plate 1 has two sliding rods 501 fixedly installed inside, the two sliding rods 501 are slidably connected to the outside of each sliding sleeve 502, the outside of one sliding sleeve 502 is fixedly installed with a first fixing plate 503, the outside of the other sliding sleeve 502 is fixedly installed with a second fixing plate 504, the bottom of the first fixing plate 503 is fixedly installed with a basalt drill rod 505, and the bottom of the second fixing plate 504 is fixedly installed with a universal wheel 506, a limiting sleeve 507 is fixedly installed on the top of the second fixed plate 504, a limiting rod 508 is fixedly installed inside the limiting sleeve 507, a spring 509 is sleeved on the outside of the limiting rod 508, a connecting block 510 is slidably connected to the outside of the limiting rod 508, a limiting groove 511 is provided on the front of the limiting sleeve 507, a control plate 512 is fixedly installed on the outside of the connecting block 510, a connecting sleeve 513 is sleeved on the outside of the limiting rod 508, a connecting rod 514 is fixedly installed on the outside of the connecting sleeve 513, a first clamping sleeve 515 is fixedly installed on the outside of the connecting rod 514, a clamping column 516 is fixedly installed on the outside of the first clamping sleeve 515, a connecting seat 517 is fixedly installed on the top of the first fixed plate 503, a second clamping sleeve 518 is fixedly installed on the outside of the connecting seat 517, a threaded seat 519 is fixedly installed on the top of the basalt bottom plate 1, and a threaded control rod 520 is rotatably connected to the top of the connecting seat 517.

[0034] Specifically, three accommodating cavities are provided inside the basalt base plate 1, and two support auxiliary mechanisms 5 are arranged in each cavity, totaling six support auxiliary mechanisms 5. Each of the six support auxiliary mechanisms 5 includes a basalt drill rod 505 and a universal wheel 506, which can independently adjust the height. This design allows the user to adjust the length of each basalt drill rod 505 on uneven ground so that the basalt base plate 1 can reach a horizontal state, thereby ensuring the stability of the entire hydraulic support. In this way, even on an inclined or uneven ground, it can be ensured that the basalt base plate 1 of the hydraulic support can remain horizontal, further enhancing the applicability and safety of the hydraulic support in complex environments.

[0035] Specifically, the size of the first fixing plate 503 is the same as that of the second fixing plate 504, the height of the limiting sleeve 507 is the same as that of the connecting seat 517, and the limiting sleeve 507 and the connecting seat 517 act as a limit for the first fixing plate 503 and the second fixing plate 504. When the limiting sleeve 507 and the connecting seat 517 are in contact with the inner top wall of the basalt base plate 1, this indicates that the first fixing plate 503 and the second fixing plate 504 have risen to the highest position. At this time, the first fixing plate 503 and the second fixing plate 504 can be located on the same horizontal line, ensuring that the first clamping sleeve 515 and the second clamping sleeve 518 can be accurately clamped.

[0036] Specifically, when the first clamping sleeve 515 is clamped with the second clamping sleeve 518 through the clamping column 516, since the connecting seat 517 is fixedly connected to the second clamping sleeve 518, when the threaded control rod 520 is rotated, the rotation of the threaded control rod 520 will drive the connecting seat 517 threadedly connected to it to move up and down, and this action will be directly transmitted to the second clamping sleeve 518, thereby driving the entire connecting seat 517 and the second clamping sleeve 518 fixed thereto to move up and down together, thereby affecting the position change of the first fixed plate 503 connected to the first clamping sleeve 515. This linkage effect ensures that when the threaded control rod 520 rotates, the first fixed plate 503 and the second fixed plate 504 can move synchronously, thereby realizing the extension or retraction of the universal wheel 506 and the lifting and lowering of the basalt drill rod 505, thereby achieving the effect of moving or firmly positioning the hydraulic support.

[0037] In summary, the underground hydraulic support, by arranging the support auxiliary mechanism 5 in the basalt bottom plate 1, enables the universal wheel 506 to extend out of the basalt bottom plate 1 when needed, so as to facilitate movement; when movement is required, the operator rotates the threaded control rod 520 clockwise to make the first fixed plate 503 and the second fixed plate 504 slide down along the sliding rod 501 until the universal wheel 506 contacts the ground and lifts the basalt bottom plate 1, so that the hydraulic support is easy to move, the operation process is simplified, the burden on miners is reduced, and the production efficiency is improved; and since most of the components in the present invention are made of basalt material, their weight can be reduced by more than 50% compared with various components made of materials such as steel.

[0038] In addition, the downhole hydraulic support can be inserted into the ground after being in place through the basalt drill rod 505 provided therein to enhance stability; after the hydraulic support is moved into place, the first fixing plate 503 and the second fixing plate 504 are lifted by rotating the threaded control rod 520 counterclockwise to separate the universal wheel 506 from the ground, thereby ensuring that the basalt bottom plate 1 is close to the ground; then, the control plate 512 is pulled to compress the spring 509 to separate the first clamping sleeve 515 from the second clamping sleeve 518, and then the threaded control rod 520 is rotated clockwise to push the basalt drill rod 505 deep into the ground, thereby enhancing the overall stability, avoiding displacement caused by changes in external conditions, improving safety and efficiency, and solving the problem of hydraulic support failure. The solution is to solve some design defects of existing underground hydraulic supports. Some hydraulic supports are difficult to move flexibly and deploy quickly due to their complex structure, large size and heavy weight, which brings inconvenience to miners' operation and may delay production progress. At the same time, although other hydraulic supports are designed with mobility issues in mind and achieve better transportability by adding moving wheels and other measures, this is often at the expense of equipment stability. In actual work, this type of hydraulic support may be displaced due to changes in surface conditions or external forces, which not only reduces work efficiency but also may cause safety hazards.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A downhole hydraulic support, comprising a basalt bottom plate (1), characterized in that: A hydraulic rod (2) is arranged on the top of the basalt bottom plate (1), a basalt top beam (3) and a basalt tail beam (4) are arranged on the top of the hydraulic rod (2), and a support auxiliary mechanism (5) is arranged inside the basalt bottom plate (1); The support auxiliary mechanism (5) comprises a sliding rod (501), a sliding sleeve (502), a first fixing plate (503), a second fixing plate (504), a basalt drill rod (505), a universal wheel (506), a limiting sleeve (507), a limiting rod (508), a spring (509), a connecting block (510), a limiting groove (511), a control plate (512), a connecting sleeve (513), a connecting rod (514), a first clamping sleeve (515), a clamping column (516), a connecting seat (517), a second clamping sleeve (518), a threaded seat (519) and a threaded seat (519). A control rod (520) is provided, two sliding rods (501) are fixedly installed inside the basalt bottom plate (1), and the outsides of the two sliding rods (501) are slidably connected with sliding sleeves (502), a first fixing plate (503) is fixedly installed outside one of the sliding sleeves (502), and a second fixing plate (504) is fixedly installed outside the other sliding sleeve (502), a basalt drill rod (505) is fixedly installed at the bottom of the first fixing plate (503), and a universal wheel (506) is fixedly installed at the bottom of the second fixing plate (504). ), a limiting sleeve (507) is fixedly installed on the top of the second fixing plate (504), a limiting rod (508) is fixedly installed inside the limiting sleeve (507), a spring (509) is sleeved on the outside of the limiting rod (508), a connecting block (510) is slidably connected to the outside of the limiting rod (508), a limiting groove (511) is provided on the front of the limiting sleeve (507), a control plate (512) is fixedly installed on the outside of the connecting block (510), a connecting sleeve (513) is sleeved on the outside of the limiting rod (508), and the connecting sleeve A connecting rod (514) is fixedly installed on the outside of (513), a first clamping sleeve (515) is fixedly installed on the outside of the connecting rod (514), a clamping column (516) is fixedly installed on the outside of the first clamping sleeve (515), a connecting seat (517) is fixedly installed on the top of the first fixing plate (503), a second clamping sleeve (518) is fixedly installed on the outside of the connecting seat (517), a threaded seat (519) is fixedly installed on the top of the basalt base plate (1), and a threaded control rod (520) is rotatably connected to the top of the connecting seat (517).

2. A downhole hydraulic support according to claim 1, characterized in that: The basalt base plate (1) is provided with three accommodating inner cavities, each of which is provided with two support auxiliary mechanisms (5), and each of which is a front-to-back through-structure.

3. The downhole hydraulic support according to claim 1, characterized in that: The left side of the first fixing plate (503) fits with the right side of the second fixing plate (504), and the size of the first fixing plate (503) is the same as that of the second fixing plate (504). The bottom of the basalt base plate (1) is provided with an extension hole adapted to the basalt drill rod (505) and the universal wheel (506).

4. The downhole hydraulic support according to claim 1, characterized in that: One end of the spring (509) is fixedly connected to the inner wall of the limiting sleeve (507), the other end of the spring (509) is fixedly connected to the connecting block (510), and one end of the connecting block (510) away from the spring (509) is fixedly connected to the connecting sleeve (513).

5. The downhole hydraulic support according to claim 1, characterized in that: The height of the limiting sleeve (507) is the same as that of the connecting seat (517); the front and rear sides of the first clamping sleeve (515) are fixedly mounted with clamping columns (516); the first clamping sleeve (515) is clamped with the second clamping sleeve (518) via the clamping columns (516).

6. The downhole hydraulic support according to claim 1, characterized in that: The first clamping sleeve (515) and the second clamping sleeve (518) have the same size, and the outside of the control plate (512) passes through the limiting groove (511) and extends to the outside of the limiting sleeve (507).

7. The downhole hydraulic support according to claim 1, characterized in that: The top of the threaded control rod (520) passes through the inner top wall of the basalt base plate (1) and the threaded seat (519) and extends to the top of the basalt base plate (1), and the threaded control rod (520) is threadedly connected to the threaded seat (519).

8. The downhole hydraulic support according to claim 1, characterized in that: The distance between the bottom of the universal wheel (506) and the inner bottom wall of the basalt bottom plate (1) is smaller than the distance between the bottom of the basalt drill rod (505) and the inner bottom wall of the basalt bottom plate (1).

9. A method for using a downhole hydraulic support, characterized in that: The downhole hydraulic support according to claim 1-8 further comprises the following steps: S1. When the hydraulic support needs to be moved, the operator rotates the threaded control rod (520) clockwise to cause the first fixed plate (503) and the second fixed plate (504) to slide down along the sliding rod (501) until the universal wheel (506) passes through the extension hole at the bottom of the basalt bottom plate (1) and touches the ground, and lifts the basalt bottom plate (1). At this time, the hydraulic support is in a movable state; S2. After the hydraulic support is moved to the predetermined location, first, the threaded control rod (520) is rotated counterclockwise to lift the first fixing plate (503) and the second fixing plate (504) until the universal wheel (506) leaves the ground, while ensuring that the basalt bottom plate (1) is in close contact with the ground; S3: Then, the operator pulls the control plate (512) away from the first fixing plate (503), so that the spring (509) is compressed and the first clamping sleeve (515) is separated from the second clamping sleeve (518); S4. Finally, the threaded control rod (520) is rotated clockwise again to cause the first fixing plate (503) and the basalt drill rod (505) to move downward, and the basalt drill rod (505) is driven deep into the ground, thereby enhancing the overall stability of the hydraulic support.

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