Paste filling hydraulic support capable of achieving isolated sealing

Abstract

The utility model discloses a paste filling hydraulic support capable of achieving isolation sealing, and belongs to the technical field of hydraulic supports. The front bracket is arranged at the top of the base; the rear isolation mechanism comprises a tail beam arranged at the tail end of the front support, and a vertical isolation plate is arranged between the tail beam and the base; the sealing mechanism comprises a first sealing frame strip arranged on the tail beam and a second sealing frame strip arranged on the isolation plate, a first driving mechanism used for driving the first sealing frame strip to stretch out and draw back is arranged on the tail beam, and a second driving mechanism used for driving the second sealing frame strip to stretch out and draw back is arranged on the isolation plate; and the first sealing frame strip and the second sealing frame strip have elastic flexibility. The first driving mechanism and the second driving mechanism drive the first sealing frame strip and the second sealing frame strip to stretch out, automatic isolation sealing is achieved, isolation sealing time is shortened, and production efficiency of filling mining is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic support technology, and in particular to a paste-filled hydraulic support that can achieve isolation and sealing. Background Technology

[0002] As one of the green mining technologies in coal mines, paste filling mining technology aims to solve the problems of coal pressure from "three downs and one up", achieve zero discharge of surface gangue, protect the mining area environment, improve the coal resource recovery rate, and extend the service life of the mine.

[0003] The structure of conventional hydraulic supports for backfilling in fully mechanized coal mining cannot effectively seal the gaps between the rear isolation zones. Current technologies typically employ methods such as laying straw mats or hanging plastic sheets for sealing, but these methods require working at heights, are labor-intensive, and have low sealing efficiency, thus hindering efficient production in backfilling coal faces.

[0004] To address this, a hydraulic support for paste filling that enables isolation and sealing is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a paste filling hydraulic support that can achieve isolation and sealing, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a hydraulic support for filling paste that can achieve isolation and sealing, comprising:

[0007] Base;

[0008] The front bracket is located on top of the base;

[0009] The rear isolation mechanism includes a tail beam disposed at the rear end of the front support, and a vertical isolation plate is disposed between the tail beam and the base;

[0010] A sealing mechanism includes a first sealing frame strip disposed on the tail beam and a second sealing frame strip disposed on the isolation plate. The tail beam is provided with a first driving mechanism for driving the first sealing frame strip to extend and retract, and the isolation plate is provided with a second driving mechanism for driving the second sealing frame strip to extend and retract. The first sealing frame strip and the second sealing frame strip have elastic extensibility.

[0011] Preferably, the front end of the tail beam is hinged to the rear end of the front support, and a first jack is hinged between the tail beam and the front support; the isolation plate includes an upper isolation plate and a lower isolation plate, the upper isolation plate is hinged to the bottom of the tail beam, a second jack is hinged between the bottom of the front support and the side wall of the upper isolation plate, the lower isolation plate is connected to the base, and the second jack drives the upper isolation plate to overlap or separate from the lower isolation plate.

[0012] Preferably, a first groove is provided on the outer wall of the tail beam, the first groove is arranged around both sides and the tail end of the tail beam, the first sealing frame strip is slidably embedded in the first groove, a first cavity is provided in the tail beam, the first driving mechanism is disposed in the first cavity, and the output end of the first driving mechanism passes through the first cavity and is connected to the first sealing frame strip.

[0013] Preferably, the first driving mechanism includes multiple third jacks and multiple fourth jacks. The cylinder ends of the third and fourth jacks are hinged to the first cavity. The third and fourth jacks are arranged vertically. The piston rod of the third jack passes through the side wall of the first cavity and is hinged to the inner side wall of the first sealing frame at the tail end of the tail beam. The multiple fourth jacks are divided into two groups. The piston rods of the two groups of fourth jacks are arranged opposite to each other. The piston rods of the two groups of fourth jacks pass through the side wall of the first cavity and are respectively hinged to the two inner side walls of the first sealing frame on both sides of the tail beam.

[0014] Preferably, the second sealing frame strip includes two I-shaped sealing frame strips; the second driving mechanism includes an upper driving assembly and a lower driving assembly;

[0015] The upper isolation plate and the lower isolation plate are respectively provided with a second groove on their outer side walls. The second groove on the upper isolation plate is arranged around the top and both sides of the upper isolation plate, and the second groove on the lower isolation plate is arranged around the bottom and both sides of the lower isolation plate. The two C-shaped sealing frame strips are respectively slidably embedded in the two second grooves. The upper driving assembly and the lower driving assembly are respectively disposed on the upper isolation plate and the lower isolation plate and are respectively connected to the two C-shaped sealing frame strips.

[0016] Preferably, the upper isolation plate has a second cavity, the upper drive assembly includes multiple fifth jacks and multiple sixth jacks, the cylinder ends of the fifth jacks and the sixth jacks are hinged to the second cavity, the fifth jacks and the sixth jacks are arranged vertically, the piston rod of the fifth jack passes through the second cavity and is hinged to the inner top wall of the C-shaped sealing frame, the multiple sixth jacks are divided into two groups, the piston rods of the two groups of sixth jacks are arranged opposite to each other and pass through the side wall of the second cavity, and the piston rods of the two groups of sixth jacks are respectively hinged to the two inner side walls of the C-shaped sealing frame;

[0017] The lower isolation plate has a third cavity, and the lower drive assembly includes multiple seventh jacks. The multiple seventh jacks are divided into two groups, and the piston rods of the two groups of seventh jacks are arranged opposite to each other and pass through the side wall of the third cavity. The piston rods of the two groups of seventh jacks are respectively hinged to the two inner side walls of the C-shaped sealing frame.

[0018] Preferably, the lower isolation plate is rotatably connected to the tail end of the base, and a swing jack is hinged between the lower isolation plate and the base. A third groove is provided on the outer top wall of the upper isolation plate. The second sealing frame includes a second sealing strip. The second sealing strip is slidably embedded in the third groove. A fourth cavity is provided in the upper isolation plate. Multiple eighth jacks are hinged in the fourth cavity. The piston rod of the eighth jack passes through the side wall of the fourth cavity and is hinged to the bottom of the second sealing strip.

[0019] Preferably, the fourth cavity extends through the bottom of the upper isolation plate, a telescopic isolation plate is slidably connected below the fourth cavity, and multiple ninth jacks are hinged to the top of the fourth cavity and the telescopic isolation plate.

[0020] This utility model discloses the following technical effects: When sealing the rear isolation mechanism, the first sealing frame strip on the outer periphery of the tail beam is extended by the first driving mechanism, thereby pressing against the first sealing frame strip extending from the adjacent tail beam to complete the seal; the second sealing frame strip on the isolation plate is extended by the second driving mechanism to complete the seal, thereby replacing the methods of laying straw mats and hanging isolation cloths, etc. The first driving mechanism and the second driving mechanism realize automatic isolation and sealing, reduce the isolation and sealing time, and improve the filling and mining production efficiency. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of Example 1;

[0023] Figure 2 This is a cross-sectional view of the tail beam of this utility model;

[0024] Figure 3 This is a schematic diagram of the upper isolation plate in Example 1;

[0025] Figure 4 This is a schematic diagram of the lower isolation plate in Example 1;

[0026] Figure 5 This is a schematic diagram of the structure of Example 2;

[0027] Figure 6 This is a schematic diagram of the upper isolation plate in Example 2.

[0028] In the diagram: 1. Main top beam; 2. Rear top beam; 3. Main base; 4. Rear base; 5. Protective beam; 6. Front connecting rod; 7. Rear connecting rod; 8. Column jack; 9. Side guard; 10. Telescopic beam; 11. Tail beam; 12. First sealing frame strip; 13. First jack; 14. Upper isolation plate; 15. Lower isolation plate; 16. Second jack; 17. Third jack; 18. Fourth jack; 19. C-shaped sealing frame strip; 20. Fifth jack; 21. Sixth jack; 22. Seventh jack; 23. Lifting jack; 24. Swinging jack; 25. Second sealing strip; 26. Eighth jack; 27. Telescopic isolation plate; 28. Ninth jack. Detailed Implementation

[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] Reference Figures 1-4 This utility model provides a hydraulic support for filling paste that can achieve isolation and sealing, comprising:

[0033] Base;

[0034] The front bracket is located on top of the base;

[0035] The rear isolation mechanism includes a tail beam 11 located at the rear end of the front support, and a vertical isolation plate is provided between the tail beam 11 and the base.

[0036] The sealing mechanism includes a first sealing frame strip 12 disposed on the tail beam 11 and a second sealing frame strip disposed on the partition plate. The tail beam 11 is provided with a first driving mechanism for driving the first sealing frame strip 12 to extend and retract, and the partition plate is provided with a second driving mechanism for driving the second sealing frame strip to extend and retract. The first sealing frame strip 12 and the second sealing frame strip have elastic extension and retraction.

[0037] In this embodiment, the base includes a main base 3 and a rear base 4 that are hinged to each other. The front support includes a main top beam 1 and a rear top beam 2 that are hinged to each other. The main top beam 1 is located above the main base 3, and two column jacks 8 are hinged between the main top beam 1 and the main base 3. The rear top beam 2 is located above the rear base 4, and two column jacks 8 are hinged between the rear top beam 2 and the rear base 4. A telescopic beam 10 is slidably connected to the front end of the main top beam 1, and a telescopic jack is hinged between the main top beam 1 and the telescopic beam 10 to drive the telescopic beam 10 to extend or retract. A side guard 9 is rotatably connected to the front end of the telescopic beam 10, and an angle adjustment jack is hinged between the telescopic beam 10 and the side guard 9 to adjust the angle between the telescopic beam 10 and the side guard 9. A shield beam 5 is provided between the main top beam 1 and the main base 3. The top of the shield beam 5 is hinged to the main top beam 1, and a front connecting rod 6 and a rear connecting rod 7 are hinged to one side of the bottom of the shield beam 5. The bottoms of the front connecting rod 6 and the rear connecting rod 7 are respectively hinged to the main base 3.

[0038] In some alternative embodiments, the front end of the tail beam 11 is hinged to the rear end of the front support, and a first jack 13 is hinged between the tail beam 11 and the front support; the isolation plate includes an upper isolation plate 14 and a lower isolation plate 15, the upper isolation plate 14 is hinged to the bottom of the tail beam 11, a second jack 16 is hinged between the bottom of the front support and the side wall of the upper isolation plate 14, the lower isolation plate 15 is connected to the base, and the second jack 16 drives the upper isolation plate 14 and the lower isolation plate 15 to overlap or separate.

[0039] Specifically, the front end of the tail beam 11 is hinged to the rear end of the rear top beam 2, and a first jack 13 is hinged between the tail beam 11 and the rear top beam 2. A second jack 16 is hinged between the bottom of the rear top beam 2 and the side wall of the upper isolation plate 14. When sealing and isolation are required, the upper isolation plate 14 is driven to rotate by the second jack 16, so that the upper isolation plate 14 overlaps with the lower isolation plate 15.

[0040] In some alternative embodiments, a first groove is provided on the outer side wall of the tail beam 11, the first groove is arranged around both sides and the tail end of the tail beam 11, a first sealing frame strip 12 is slidably embedded in the first groove, a first cavity is provided in the tail beam 11, a first driving mechanism is disposed in the first cavity, and the output end of the first driving mechanism passes through the first cavity and is connected to the first sealing frame strip 12.

[0041] In some alternative embodiments, the first drive mechanism includes a plurality of third jacks 17 and a plurality of fourth jacks 18. The cylinder ends of the third jacks 17 and the fourth jacks 18 are hinged to the first cavity. The third jacks 17 and the fourth jacks 18 are arranged vertically. The piston rod of the third jack 17 passes through the side wall of the first cavity and is hinged to the inner side wall of the first sealing frame 12 located at the tail end of the tail beam 11. The plurality of fourth jacks 18 are divided into two groups. The piston rods of the two groups of fourth jacks 18 are arranged opposite to each other. The piston rods of the two groups of fourth jacks 18 pass through the side wall of the first cavity and are respectively hinged to the two inner side walls of the first sealing frame 12 located on both sides of the tail beam 11.

[0042] In this embodiment, the first sealing frame 12 is composed of two horizontal rubber strips and one vertical rubber strip. In order to increase the support strength of the first sealing frame 12, telescopic steel strips are vulcanized in the two horizontal rubber strips and the vertical rubber strip respectively. The telescopic steel strip includes a fixed steel strip. A groove is opened at one end of the fixed steel strip. The telescopic steel strip is slidably connected in the groove. The ends of the fixed steel strip and the telescopic steel strip are vulcanized with the rubber strip respectively. Lugs are welded on the fixed steel strip. The piston rod of the third jack 17 is hinged to the fixed steel strip on the vertical rubber strip. The piston rod of the fourth jack 18 is hinged to the fixed steel strip on the horizontal rubber strip.

[0043] When sealing is required, the two sets of fourth jacks 18 drive the two horizontal rubber strips of the first sealing frame 12 to extend from the left and right sides, while simultaneously driving the vertical rubber strips to extend and increasing the extension length of the telescopic steel strips in the vertical rubber strips, thereby pressing against the first sealing frame 12 extending from the tail beam of the adjacent frame to complete the side sealing; the third jack 17 drives the vertical rubber strips of the first sealing frame 12 to extend from the rear end of the tail beam 11, while simultaneously driving the two horizontal rubber strips to extend and increasing the extension length of the telescopic steel strips in the horizontal rubber strips, pressing against the uneven roof of the mine to complete the top sealing; the tensile deformation of the first sealing frame 12 is between 20% and 30%.

[0044] In some alternative embodiments, the second sealing frame includes two I-shaped sealing frame strips 19; the second drive mechanism includes an upper drive assembly and a lower drive assembly;

[0045] The upper isolation plate 14 and the lower isolation plate 15 are respectively provided with second grooves on their outer side walls. The second groove on the upper isolation plate 14 is arranged around the top and both sides of the upper isolation plate 14, and the second groove on the lower isolation plate 15 is arranged around the bottom and both sides of the lower isolation plate 15. The two C-shaped sealing frame strips 19 are respectively slidably embedded in the two second grooves. The upper drive assembly and the lower drive assembly are respectively arranged on the upper isolation plate 14 and the lower isolation plate 15 and are respectively connected to the two C-shaped sealing frame strips 19.

[0046] In some optional embodiments, a second cavity is provided on the upper isolation plate 14, and the upper drive assembly includes a plurality of fifth jacks 20 and a plurality of sixth jacks 21. The cylinder ends of the fifth jacks 20 and the sixth jacks 21 are hinged to the second cavity. The fifth jacks 20 and the sixth jacks 21 are arranged vertically. The piston rod of the fifth jack 20 passes through the second cavity and is hinged to the inner top wall of the C-shaped sealing frame 19. The plurality of sixth jacks 21 are divided into two groups. The piston rods of the two groups of sixth jacks 21 are arranged opposite to each other and pass through the side wall of the second cavity. The piston rods of the two groups of sixth jacks 21 are respectively hinged to the two inner side walls of the C-shaped sealing frame 19.

[0047] The lower isolation plate 15 has a third cavity. The lower drive assembly includes multiple seventh jacks 22. The multiple seventh jacks 22 are divided into two groups. The piston rods of the two groups of seventh jacks 22 are arranged opposite to each other and pass through the side wall of the third cavity. The piston rods of the two groups of seventh jacks 22 are respectively hinged to the two inner side walls of the C-shaped sealing frame 19.

[0048] In this embodiment, the lower isolation plate 15 and the rear base 4 are slidably connected in the vertical direction. A lifting jack 23 is hinged between the rear base 4 and the lower isolation plate 15. The structure of the C-shaped sealing frame 19 is the same as that of the first sealing frame 12, and it is also composed of rubber strips and telescopic steel strips, which will not be described in detail here.

[0049] In use, the fifth jack 20 and the sixth jack 21 drive the C-shaped sealing frame strip 19 on the upper isolation plate 14 to extend from the left and right sides and the top. The parts extending from the left and right sides press against each other with the C-shaped sealing frame strip 19 extending from the upper isolation plate 14 of the adjacent frame to complete the seal. The part extending from the top abuts against the bottom of the tail beam 11, thereby completing the seal between the tail beam 11 and the upper isolation plate 14. The seventh jack 22 drives the C-shaped sealing frame strip 19 in the lower isolation plate 15 to extend from the left and right sides, thereby pressing against each other with the C-shaped sealing frame strip 19 extending from the lower isolation plate 15 of the adjacent frame to complete the seal. The lifting jack 23 drives the lower isolation plate 15 to descend, so that the C-shaped sealing frame strip 19 of the lower isolation plate 15 abuts against the bottom of the mine, completing the seal.

[0050] Example 2

[0051] Reference Figures 5-6 This utility model provides a hydraulic support for filling paste that can achieve isolation and sealing, comprising:

[0052] Base;

[0053] The front bracket is located on top of the base;

[0054] The rear isolation mechanism includes a tail beam 11 located at the rear end of the front support, and a vertical isolation plate is provided between the tail beam 11 and the base.

[0055] The sealing mechanism includes a first sealing frame 12 disposed on the tail beam 11 and a second sealing frame 12 disposed on the isolation plate. The tail beam 11 is provided with a first driving mechanism for driving the first sealing frame 12 to extend and retract, and the isolation plate is provided with a second driving mechanism for driving the second sealing frame 12 to extend and retract. The first sealing frame 12 and the second sealing frame 12 have elastic extensibility.

[0056] In some alternative embodiments, the front end of the tail beam 11 is hinged to the rear end of the front support, and a first jack 13 is hinged between the tail beam 11 and the front support; the isolation plate includes an upper isolation plate 14 and a lower isolation plate 15, the upper isolation plate 14 is hinged to the bottom of the tail beam 11, a second jack 16 is hinged between the bottom of the front support and the side wall of the upper isolation plate 14, the lower isolation plate 15 is connected to the base, and the second jack 16 drives the upper isolation plate 14 and the lower isolation plate 15 to overlap or separate.

[0057] In some alternative embodiments, a first groove is provided on the outer side wall of the tail beam 11, the first groove is arranged around both sides and the tail end of the tail beam 11, a first sealing frame strip 12 is slidably embedded in the first groove, a first cavity is provided in the tail beam 11, a first driving mechanism is disposed in the first cavity, and the output end of the first driving mechanism passes through the first cavity and is connected to the first sealing frame strip 12.

[0058] In some alternative embodiments, the first drive mechanism includes a plurality of third jacks 17 and a plurality of fourth jacks 18. The cylinder ends of the third jacks 17 and the fourth jacks 18 are hinged to the first cavity. The third jacks 17 and the fourth jacks 18 are arranged vertically. The piston rod of the third jack 17 passes through the side wall of the first cavity and is hinged to the inner side wall of the first sealing frame 12 located at the tail end of the tail beam 11. The plurality of fourth jacks 18 are divided into two groups. The piston rods of the two groups of fourth jacks 18 are arranged opposite to each other. The piston rods of the two groups of fourth jacks 18 pass through the side wall of the first cavity and are respectively hinged to the two inner side walls of the first sealing frame 12 located on both sides of the tail beam 11.

[0059] In some alternative embodiments, the lower isolation plate 15 is rotatably connected to the tail end of the base, and a swing jack 24 is hinged between the lower isolation plate 15 and the base. A third groove is provided on the outer top wall of the upper isolation plate 14. The second sealing frame includes a second sealing strip 25. The second sealing strip 25 is slidably embedded in the third groove. A fourth cavity is provided in the upper isolation plate 14. A plurality of eighth jacks 26 are hinged in the fourth cavity. The piston rod of the eighth jack 26 passes through the side wall of the fourth cavity and is hinged to the bottom of the second sealing strip 25.

[0060] In some alternative embodiments, the fourth cavity extends through the bottom of the upper isolation plate 14, a telescopic isolation plate 27 is slidably connected below the fourth cavity, and a plurality of ninth jacks 28 are hinged to the top of the fourth cavity and the telescopic isolation plate 27.

[0061] When the coal seam height changes in different filling working faces, the extension length of the telescopic isolation plate 27 is increased by the ninth jack 28, and it overlaps with the lower isolation plate 15, which can adapt to working faces with different mining heights and greatly improve the flexibility of use; during sealing, the second sealing strip 25 is extended by the eighth jack 26 and comes into contact with and squeezes the tail beam 11 to achieve sealing of the goaf below the tail beam 11.

[0062] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0063] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A paste-filled hydraulic support capable of achieving an isolated seal, characterized by, The utility model relates to a rear isolation mechanism, a sealing mechanism, a front support, a base, and a tail beam (11) is arranged at the tail end of the front support, a vertical isolation plate is arranged between the tail beam (11) and the base, a first sealing frame strip (12) is arranged on the tail beam (11), and a second sealing frame strip is arranged on the isolation plate, a first driving mechanism for driving the first sealing frame strip (12) to stretch out and shrink is arranged on the tail beam (11), a second driving mechanism for driving the second sealing frame strip to stretch out and shrink is arranged on the isolation plate, and the first sealing frame strip (12) and the second sealing frame strip have elastic stretchability. The tail beam (11) is hinged to the tail end of the front support, a first jack (13) is hinged between the tail beam (11) and the front support, the isolation plate comprises an upper isolation plate (14) and a lower isolation plate (15), the upper isolation plate (14) is hinged to the bottom of the tail beam (11), a second jack (16) is hinged between the bottom of the front support and the side wall of the upper isolation plate (14), the lower isolation plate (15) is connected to the base, and the second jack (16) drives the upper isolation plate (14) to overlap or separate from the lower isolation plate (15). A first groove is formed in the outer side wall of the tail beam (11), the first groove is arranged around both sides and the tail end of the tail beam (11), the first sealing frame strip (12) is slidably embedded in the first groove, a first cavity is formed in the tail beam (11), the first driving mechanism is arranged in the first cavity, and the output end of the first driving mechanism penetrates the first cavity and is connected to the first sealing frame strip (12). The first driving mechanism comprises a plurality of third jacks (17) and a plurality of fourth jacks (18), the cylinder end of the third jack (17) and the fourth jack (18) is hinged to the first cavity, the third jack (17) and the fourth jack (18) are arranged vertically, the piston rod of the third jack (17) penetrates the side wall of the first cavity and is hinged to the inner side wall of the first sealing frame strip (12) at the tail end of the tail beam (11), and a plurality of fourth jacks (18) are divided into two groups, the piston rods of the two groups of fourth jacks (18) are arranged away from each other, and the piston rods of the two groups of fourth jacks (18) penetrate the side wall of the first cavity and are hinged to the two inner side walls of the first sealing frame strip (12) on both sides of the tail beam (11) respectively. The second sealing frame strip comprises two Chinese character-shaped sealing frame strips (19), the second driving mechanism comprises an upper driving assembly and a lower driving assembly, the upper driving assembly comprises a third jack (20), a fourth jack (21), a fifth jack (22) and a sixth jack (23), the cylinder end of the third jack (20) and the fourth jack (21) is hinged to the upper isolation plate (14), the piston rod of the third jack (20) penetrates the side wall of the upper isolation plate (14) and is hinged to the inner side wall of the Chinese character-shaped sealing frame strip (19) on the left side of the tail beam (11), the piston rod of the fourth jack (21) penetrates the side wall of the upper isolation plate (14) and is hinged to an inner side wall of the Chinese character-shaped sealing frame strip (19) on the right side of the tail beam (11), the cylinder end of the fifth jack (22) and the sixth jack (23) is hinged to the lower isolation plate (15), the piston rod of the fifth jack (22) penetrates the side wall of the lower isolation plate (15) and is hinged to the inner side wall of the Chinese character-shaped sealing frame strip (20) on the left side of the tail beam (11), and the piston rod of the sixth jack (23) penetrates the side wall of the lower isolation plate (15) and is hinged to an inner side wall of the Chinese character-shaped sealing frame strip (20) on the right side of the tail beam (11).

2. The paste-filled hydraulic support capable of achieving an isolated seal according to claim 1, characterized in that: ​ 3. The grout-filled hydraulic support enabling an isolated seal according to claim 1, characterized in that: ​ 4. The grout-filled hydraulic support enabling an isolated seal according to claim 3, characterized in that: ​ 5. The grout-filled hydraulic support enabling an isolated seal according to claim 2, characterized in that: ​ The outer side wall of the upper isolation plate (14) and the lower isolation plate (15) is respectively provided with a second groove, the second groove on the upper isolation plate (14) is arranged around the top and both sides of the upper isolation plate (14), the second groove on the lower isolation plate (15) is arranged around the bottom and both sides of the lower isolation plate (15), and the two L-shaped sealing frame strips (19) are respectively and slidingly arranged in the two second grooves; the upper driving assembly and the lower driving assembly are respectively arranged on the upper isolation plate (14) and the lower isolation plate (15) and are respectively connected with the two L-shaped sealing frame strips (19).

6. The grout-filled hydraulic support enabling an isolated seal according to claim 5, characterized in that: The upper isolation plate (14) is provided with a second cavity, the upper driving assembly comprises a plurality of fifth jacks (20) and a plurality of sixth jacks (21), the cylinder end of the fifth jack (20) and the sixth jack (21) is hinged to the second cavity, the fifth jack (20) and the sixth jack (21) are vertically arranged, the piston rod of the fifth jack (20) penetrates the second cavity and is hinged to the inner top wall of the L-shaped sealing frame strip (19), a plurality of sixth jacks (21) are divided into two groups, the piston rods of the two groups of sixth jacks (21) are arranged away from each other and penetrate the side wall of the second cavity, and the piston rods of the two groups of sixth jacks (21) are respectively hinged to the two inner side walls of the L-shaped sealing frame strip (19). The lower isolation plate (15) is provided with a third cavity, and the lower driving assembly comprises a plurality of seventh jacks (22), a plurality of seventh jacks (22) are divided into two groups, the piston rods of the two groups of seventh jacks (22) are arranged away from each other and penetrate the side wall of the third cavity, and the piston rods of the two groups of seventh jacks (22) are respectively hinged to the two inner side walls of the L-shaped sealing frame strip (19).

7. The grout-filled hydraulic support enabling an isolated seal according to claim 2, characterized in that: The lower isolation plate (15) is rotatably connected with the tail end of the base, a swing jack (24) is hinged between the lower isolation plate (15) and the base, a third groove is formed in the outer top wall of the upper isolation plate (14), the second sealing frame strip comprises a second sealing strip (25), the second sealing strip (25) is slidingly arranged in the third groove, a fourth cavity is formed in the upper isolation plate (14), a plurality of eighth jacks (26) are hinged in the fourth cavity, and the piston rod of the eighth jack (26) penetrates the side wall of the fourth cavity and is hinged to the bottom of the second sealing strip (25).

8. The grout-filled hydraulic support enabling an isolated seal according to claim 7, characterized in that: The fourth cavity penetrates the bottom of the upper isolation plate (14), a telescopic isolation plate (27) is slidingly connected below the fourth cavity, and a plurality of ninth jacks (28) are hinged between the fourth cavity and the top of the telescopic isolation plate (27).

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