Isolation device for filling support

Through the design of single-group jack arrangement and guide reinforcement components, the problem of excessive size of the isolation device is solved, compact space use and stable operation are achieved, and cost is reduced.

CN223164562UActive Publication Date: 2025-07-29SHANDONG LUNAN GRP ENERGY EQUIP MFG
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Patent Information

Application Number
CN202422517400.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-07-29
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

The isolation device of the existing filling brackets has excessive overall size and large space due to multiple sets of jacks, which increases the cost of equipment manufacturing and filling costs.

Method used

A single-group jack layout structure is adopted, combining the guide assembly and the reinforcement assembly, limiting the movement range of the top beam through the guide assembly, preventing shaking, and using the reinforcement assembly to improve stability and reduce the overall size of the isolation device.

Benefits of technology

The compact use of the isolation device in a limited space is realized, which reduces manufacturing costs and construction materials costs, and improves the reliability and operation stability of the equipment.

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Abstract

The utility model provides an isolating device for a filling support, which comprises a base and a first jack, the first jack is connected with a top beam, the top beam is driven to ascend and descend through the extension and retraction of the first jack, and the top beam supports a top plate above a working surface; the isolation plates comprise the upper isolation plate and the lower isolation plate, the upper isolation plate is connected with the top beam, the lower isolation plate is connected with the base, and the isolation plates are used for isolating the filling area; the guide assembly comprises a fixed part and a movable part, the fixed part is connected with the base, the movable part is connected with the top beam, and when the first jack drives the top beam to ascend and descend, the movable part moves on a preset guide path relative to the fixed part, so that the moving range of the top beam is limited through the movable part; and the top beam is prevented from shaking in the lifting process. According to the isolation device for the filling support, the technical problems that in the related technology, due to the multiple sets of jacks, the overall size of the isolation device is too large, and the occupied space is large are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for coal mining filling supports, in particular to an isolation device for the filling supports. Background Art

[0002] When using a filling support, an isolation device is often required to separate the filling paste area from the work surface. The top beam of the isolation device is used to support the area above the work surface. Typically, multiple jacks arranged in multiple intervals drive the top beam up and down to ensure smooth movement during the lifting process.

[0003] However, the need to install multiple jacks in multiple rows necessitates a corresponding increase in the length of the top beam to accommodate their placement. This increases the overall size of the isolation device, requiring more space within the limited space required to operate with the filling bracket. This structure not only increases the manufacturing cost of the equipment, but the increased space required also requires more filling material, which in turn increases the operational complexity and cost of the filling process.

[0004] Therefore, the prior art needs to be further developed. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide an isolation device for filling a bracket to solve the technical problems in the related art that the isolation device has an excessively large overall size and occupies a large space due to multiple sets of jacks.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: an isolation device for a filling bracket is provided, including: a base, the base is connected to the filling bracket; a first jack, one end of the first jack is fixed on the base, and the other end of the first jack is connected to the top beam, and the telescopic rod of the first jack is extended and retracted to drive the top beam to move up and down, and the top beam is used to support the top plate above the working surface; an isolation plate, the isolation plate includes an upper isolation plate and a lower isolation plate, the upper isolation plate is connected to the top beam, and the lower isolation plate is connected to the base, and the isolation plate is used to isolate the filling area; a guide assembly, the guide assembly includes a fixed part and a movable part, the fixed part is connected to the base, and the movable part is connected to the top beam. When the first jack drives the top beam to rise and fall, the movable part moves relative to the fixed part on a preset guide path to limit the moving range of the top beam through the movable part to prevent the top beam from shaking during the lifting process.

[0007] Furthermore, the fixed component is a sleeve, and the movable component is a slide rod. When the top beam is raised or lowered, the slide rod is driven to move up and down in the sleeve.

[0008] Furthermore, there are two first jacks, which are respectively arranged on both sides of the sleeve.

[0009] Further, the isolation plate further includes two first side guard plates, which are respectively arranged on both sides of the upper isolation plate. The two first side guard plates are movably arranged relative to the upper isolation plate, and the moving directions of the two first side guard plates are perpendicular to the moving direction of the upper isolation plate.

[0010] Further, the isolation device further includes a first telescopic assembly. The first telescopic assembly includes a double telescopic jack. The telescopic rods at both ends of the double telescopic jack are respectively connected to each first side guard plate, and the two first side guard plates are driven to move by the telescopic movement of the double telescopic jack.

[0011] Further, the first telescopic assembly further includes a first guiding elastic assembly. The first guiding elastic assembly is arranged at an interval from the double telescopic jack. The first guiding elastic assembly includes a fixed rod, two sleeve rods and a spring. One end of the spring is connected to the fixed rod, the spring is sleeved on the fixed rod, the other end of the spring is connected to the sleeve rod, and each sleeve rod is connected to each first side guard plate. When the spring expands and contracts, the sleeve rod is movably arranged relative to the fixed rod.

[0012] Further, the isolation device further includes a second jack. One end of the second jack is fixed on the base, and the other end of the second jack is connected to the lower isolation plate through a connecting beam. By the telescopic movement of the telescopic rod of the second jack, the lower isolation plate is driven to move up and down, so as to seal the gap between the lower isolation plate and the working ground.

[0013] Further, the isolation device further includes a reinforcement assembly. The reinforcement assembly includes a slider and a chute. The slider is fixed on the base, and the chute is arranged on the lower isolation plate. When the lower isolation plate moves up and down, the chute moves relative to the slider, and the slider is used to reinforce the stability of the lower isolation plate during the movement.

[0014] Further, the isolation plate further includes two second side guard plates, which are respectively arranged on both sides of the lower isolation plate. The two second side guard plates are movably arranged relative to the lower isolation plate, and the moving directions of the two second side guard plates are perpendicular to the moving direction of the lower isolation plate.

[0015] Further, the isolation device further includes a second telescopic assembly. The second telescopic assembly includes two single telescopic jacks, which are respectively located on both sides of the chute. Each single telescopic jack is fixed on the chute, and the telescopic rod of each single telescopic jack is connected to each second side guard plate, and the two second side guard plates are driven by the telescopic movement of the single telescopic jack.

[0016] Beneficial effects:

[0017] 1. The isolation device for a filling support of the present utility model, through the layout structure of a single set of jacks, avoids the complex layout of multiple rows of jacks, reduces the overall size of the isolation device, enables the isolation device to be used in combination with the filling support more compactly in a limited space, and thus effectively saves space.

[0018] 2. The isolation device for a filling support of the present utility model is provided with a guiding component and a strengthening component to ensure the stability of the top beam and the isolation plate during the lifting process and prevent shaking. This makes the isolation device operate more smoothly during the operation process and improves the reliability of the equipment.

[0019] 3. Due to the compact structure and the reduction in the number of jacks, both the manufacturing cost of the isolation device and the material cost during the construction process are reduced, thereby reducing the overall input cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the isolation device for a filling support adopted in an embodiment of the present utility model;

[0021] Figure 2 is a schematic structural diagram of one perspective of the strengthening component of the isolation device for a filling support adopted in an embodiment of the present utility model;

[0022] Figure 3 is Figure 1 the sectional view taken along line B - B in

[0023] Figure 4 is Figure 1 the sectional views taken along lines A - A and C - C in

[0024] Figure 5 is a schematic structural diagram of another perspective of the strengthening component of the isolation device for a filling support adopted in an embodiment of the present utility model;

[0025] Figure 6 is Figure 1 the sectional views taken along lines D - D and F - F in

[0026] Figure 7 is Figure 1 the sectional view taken along line E - E in

[0027] Among them, the above-mentioned drawings include the following reference numerals:

[0028] 1. Base; 2. First jack; 3. Roof beam; 4. Partition board; 41. Upper partition board; 42. Lower partition board; 421. Connecting beam; 43. First side guard plate; 44. Second side guard plate; 5. Guide assembly; 51. Fixed part; 511. Sleeve; 52. Moving part; 521. Slide bar; 6. First telescopic assembly; 61. Double telescopic jack; 62. First guiding elastic assembly; 621. Fixed rod; 622. Sleeve rod; 623. Spring; 7. Second jack; 8. Reinforcement assembly; 81. Slide block; 82. Slide groove; 83. Fixed plate; 91. Single telescopic jack; 92. Second guiding elastic assembly; 10. Third jack. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0030] According to an embodiment of the present invention, there is provided an isolation device for a filling support. Please refer to Figures 1 to 7, including: a base 1, which is connected to a filling support; a first jack 2, one end of the first jack 2 is fixed on the base 1, and the other end of the first jack 2 is connected to a roof beam 3. By the telescopic movement of the telescopic rod of the first jack 2, the roof beam 3 is driven to move up and down. The roof beam 3 is used to support the roof above the working face; a partition board 4, the partition board 4 includes an upper partition board 41 and a lower partition board 42. The upper partition board 41 is connected to the roof beam 3, and the lower partition board 42 is connected to the base 1. The partition board 4 is used to isolate the filling area; a guiding assembly 5, the guiding assembly 5 includes a fixed part 51 and a moving part 52. The fixed part 51 is connected to the base 1, and the moving part 52 is connected to the roof beam 3. When the first jack 2 drives the roof beam 3 to lift and lower, the moving part 52 moves relative to the fixed part 51 along a preset guiding path, so as to limit the moving range of the roof beam 3 through the moving part 52 and prevent the roof beam 3 from shaking during the lifting and lowering process. The connection mode between the first jack 2 and the roof beam 3, as well as the connection between the partition board 4 and the base 1 and the roof beam 3, enables the device to achieve structural compactness while maintaining functionality. The telescopic movement of the first jack 2 drives the roof beam 3 to lift and lower, so that the roof beam 3 drives the upper partition board 41 to lift and lower together, realizing isolation at a specified height. Compared with the conventional isolation device, the isolation device of this embodiment uses only a single row of jacks to lift and lower the roof beam 3, reducing the size of the overall device. In order to improve the lifting stability of the roof beam 3, a guiding assembly 5 is introduced to ensure that the roof beam 3 can move smoothly along the preset guiding path during the lifting and lowering process, without the need for additional space to accommodate complex transmission mechanisms or stabilizing devices, reducing the occupation of the device in a limited space. The isolation device for the filling support of this embodiment solves the technical problem in the related art that the overall size of the isolation device is too large and the occupied space is large due to multiple groups of jacks.

[0031] Refer to Figure 1 and Figure 2 , for the isolation device for the filling support of this embodiment, the fixed part 51 is a sleeve 511, and the moving part 52 is a sliding rod 521. When the roof beam 3 lifts and lowers, it drives the sliding rod 521 to move up and down in the sleeve 511. By designing the fixed part 51 as a sleeve 511 and the moving part 52 as a sliding rod 521, the structure of the guiding assembly is simplified, making it more compact and easier to install. The up and down movement of the sliding rod 521 in the sleeve 511 provides stable guidance, effectively preventing the roof beam 3 from shaking during the lifting and lowering process and enhancing the stability of the entire isolation device.

[0032] Refer to Figure 2, for the isolation device of the filling support in this embodiment, there are two first jacks 2, and the two first jacks 2 are respectively arranged on both sides of the sleeve 511. Without increasing the overall size of the device, by arranging the first jacks 2 on both sides of the sleeve 511 respectively, the weight of the roof beam 3 can be supported more evenly, preventing shaking or tilting caused by single-point support. The simultaneous operation of the two first jacks 2 improves the stability of the entire isolation device and ensures a stable supporting force during the filling process.

[0033] Refer to Figure 1 , Figure 3 and Figure 4 , for the isolation device of the filling support in this embodiment, the isolation plate 4 further includes two first side guard plates 43. The two first side guard plates 43 are respectively arranged on both sides of the upper isolation plate 41. The two first side guard plates 43 are movably arranged relative to the upper isolation plate 41, and the moving directions of the two first side guard plates 43 are perpendicular to the moving direction of the upper isolation plate 41. When multiple isolation devices are arranged side by side, there will be a gap between two adjacent upper isolation plates 41. At this time, moving the two first side guard plates 43 can block the gap between two adjacent isolation devices, so that the upper isolation plate 41 can adapt to filling areas of different widths, thereby ensuring that the filling material is effectively isolated outside the working area.

[0034] Refer to Figure 3 , for the isolation device of the filling support in this embodiment, the isolation device further includes a first telescopic assembly 6. The first telescopic assembly 6 includes a double telescopic jack 61. The telescopic rods at both ends of the double telescopic jack 61 are respectively connected to the respective first side guard plates 43. The two first side guard plates 43 are driven to move by the telescopic movement of the double telescopic jack 61. The double telescopic jack 61 adjusts the positions of the two first side guard plates 43, thereby achieving precise control of the isolation range.

[0035] Refer to Figure 4, for the isolation device of the filling support in this embodiment, the first telescopic assembly 6 further includes a first guiding elastic assembly 62. The first guiding elastic assembly 62 is arranged at an interval from the double telescopic jack 61. The first guiding elastic assembly 62 includes a fixed rod 621, two sleeve rods 622 and a spring 623. One end of the spring 623 is connected to the fixed rod 621, the spring 623 is sleeved on the fixed rod 621, the other end of the spring 623 is connected to the sleeve rod 622, and each sleeve rod 622 is connected to each first side guard plate 43. When the spring 623 expands and contracts, the sleeve rod 622 is movably arranged relative to the fixed rod 621. The double telescopic jack 61 and the first guiding elastic assembly 62 are arranged at intervals on the upper isolation plate 41. When the double telescopic jack 61 drives the first side guard plates 43 on both sides to move, the first guiding elastic assembly 62 acts as a driven component. Along with the expansion and contraction action of the double telescopic jack 61, the first side guard plate 43 will move accordingly. At this time, the spring 623 in the first guiding elastic assembly 62 will be forced to expand and contract, thereby driving the sleeve rod 622 to move smoothly and stably along the fixed rod 621. This driven guiding effect ensures the stability and accuracy of the first side guard plate 43 during the movement process, avoiding poor isolation effects caused by shaking or deviation. By introducing the first guiding elastic assembly 62, the movement of the first side guard plate 43 can be further controlled. Driven by the double telescopic jack 61, the first side guard plate 43 can move smoothly and controllably along a predetermined path, and the expansion and contraction of the spring 623 provides additional adjustment and stabilizing effects, making the entire movement process smoother and more reliable.

[0036] Refer to Figure 1 and Figure 2 , for the isolation device of the filling support in this embodiment, the isolation device further includes a second jack 7. One end of the second jack 7 is fixed on the base 1, and the other end of the second jack 7 is connected to the lower isolation plate 42 through a connecting beam 421. By the expansion and contraction of the telescopic rod of the second jack 7, the lower isolation plate 42 is driven to move up and down, thereby blocking the gap between the lower isolation plate 42 and the working ground. The telescopic rod of the second jack 7 can accurately control the up and down movement of the lower isolation plate 42, thereby ensuring that the gap between the lower isolation plate 42 and the working ground is completely blocked.

[0037] Refer to Figure 2 and Figure 5, the isolation device for the filling support in this embodiment, the isolation device further includes a reinforcement component 8. The reinforcement component 8 includes a slider 81 and a chute 82. The slider 81 is fixed on the base 1, and the chute 82 is arranged on the lower isolation plate 42. When the lower isolation plate 42 moves up and down, the chute 82 moves relative to the slider 81. The slider 81 is used to reinforce the stability of the lower isolation plate 42 during the movement. The slider 81 is connected to the base 1 through a fixing plate 83. The cooperation of the slider 81 and the chute 82 not only provides clear guidance and positioning for the movement of the lower isolation plate 42, but also enables the lower isolation plate 42 to maintain a stable position and posture during the up and down movement, effectively preventing the lower isolation plate 42 from shaking or tilting during the movement, thereby ensuring the overall stability of the isolation device.

[0038] Refer to Figure 6 and Figure 7 , the isolation device for the filling support in this embodiment, the isolation plate 4 further includes two second side guard plates 44. The two second side guard plates 44 are respectively arranged on both sides of the lower isolation plate 42. The two second side guard plates 44 are movably arranged relative to the lower isolation plate 42, and the moving directions of the two second side guard plates 44 are perpendicular to the moving direction of the lower isolation plate 42. Similar to the function of the first side guard plate 43 of the upper isolation plate 41, when multiple isolation devices are arranged side by side, there will be a gap between two adjacent lower isolation plates 42. At this time, moving the two second side guard plates 44 can block the gap between two adjacent isolation devices, so that the lower isolation plate 42 can adapt to filling areas of different widths.

[0039] Refer to Figure 6 , the isolation device for the filling support in this embodiment, the isolation device further includes a second telescopic component. The second telescopic component includes two single-direction telescopic jacks 91. The two single-direction telescopic jacks 91 are respectively located on both sides of the chute 82. Each single-direction telescopic jack 91 is fixed on the chute 82, and the telescopic rods of each single-direction telescopic jack 91 are connected to each second side guard plate 44, driving the two second side guard plates 44 through the telescopic movement of the single-direction telescopic jacks 91. Due to the arrangement of the chute 82, two single-direction telescopic jacks 91 are required in the same horizontal direction, and the two single-direction telescopic jacks 91 respectively drive the second side guard plates 44 on both sides to move. The single-direction telescopic jack 91 ensures that the position and posture of the second side guard plate 44 are precisely controlled during the movement.

[0040] Refer to Figure 7 , a second guiding elastic component 92 is also arranged on the lower isolation plate 42 in this embodiment to synchronize the movement of the second side guard plate 44 with the single-direction telescopic jack 91. Different from the structure of the first guiding elastic component 62 on the upper isolation plate 41, limited by the position of the chute 82, on the same horizontal plane, the guiding elastic component is divided into two groups to act as driven components to cooperate with the single-direction telescopic jack 91 to control the movement of the second side guard plates 44 on both sides.

[0041] Referring to Figure 1 and Figure 1 As can be seen from the sectional views A-A, B-B, C-C, D-D, E-E and F-F in the figure, in the upper isolation area, the movement of the first side guard plates 43 on both sides is controlled by the cooperation of a double telescopic jack 61 and two groups of first guiding elastic components 62 arranged at upper and lower intervals; in the lower isolation area, the movement of the second side guard plates on both sides is controlled by the cooperation of two groups of single telescopic jacks 91 and the second guiding elastic components in the middle of the two groups of single telescopic jacks 91. Among them, each group has two single telescopic jacks 91 and two second guiding elastic components. The first side guard plates 43 and the second side guard plates 44 respectively move telescopically on the upper isolation plate 41 and the lower isolation plate 42 according to the actual situation, ensuring that the gap between the side guard plates and the filling support is effectively blocked to prevent the leakage of filling materials.

[0042] Referring to Figure 1 , in this embodiment, a third jack 10 is further provided on the base 1. When connecting to the filling support, the distance between the isolation device and the filling support can be adjusted by the telescopic movement of the third jack 10.

[0043] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0044] Optionally, the specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0045] The serial numbers of the above embodiments of this application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0046] In the above embodiments of this application, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0047] The above is only the preferred embodiment of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this application.

Claims

1. An isolation device for a filling support, characterized in that, Comprising: A base (1), the base (1) being connected to a filling support; A first jack (2), one end of the first jack (2) being fixed to the base (1), the other end of the first jack (2) being connected to a roof beam (3), the telescopic rod of the first jack (2) being telescoped to drive the roof beam (3) to move up and down, the roof beam (3) being used for supporting the roof above the working face; A partition plate (4), the partition plate (4) including an upper partition plate (41) and a lower partition plate (42), the upper partition plate (41) being connected to the roof beam (3), the lower partition plate (42) being connected to the base (1), the partition plate (4) being used for isolating the filling area; A guiding assembly (5), the guiding assembly (5) including a fixed part (51) and a moving part (52), the fixed part (51) being connected to the base (1), the moving part (52) being connected to the roof beam (3), when the first jack (2) drives the roof beam (3) to lift and lower, the moving part (52) moves relative to the fixed part (51) along a preset guiding path to limit the moving range of the roof beam (3) through the moving part (52) and prevent the roof beam (3) from swaying during the lifting and lowering process.

2. The isolation device for a filling support according to claim 1, characterized in that, The fixed part (51) is a sleeve (511), the moving part (52) is a sliding rod (521), when the roof beam (3) lifts and lowers, it drives the sliding rod (521) to move up and down in the sleeve (511).

3. The isolation device for a filling support according to claim 2, characterized in that, There are two first jacks (2), and the two first jacks (2) are respectively arranged on both sides of the sleeve (511).

4. The isolation device for filling a support according to claim 1, characterized in that, The partition plate (4) further includes two first side guard plates (43), the two first side guard plates (43) are respectively arranged on both sides of the upper partition plate (41), the two first side guard plates (43) are movably arranged relative to the upper partition plate (41), and the moving directions of the two first side guard plates (43) are perpendicular to the moving direction of the upper partition plate (41).

5. The isolation device for a filling support according to claim 4, characterized in that, The isolation device further includes a first telescopic assembly (6), the first telescopic assembly (6) including a double telescopic jack (61), the telescopic rods at both ends of the double telescopic jack (61) are respectively connected to each of the first side guard plates (43), and the two first side guard plates (43) are driven to move by the telescoping of the double telescopic jack (61).

6. The isolation device for filling a support according to claim 5, characterized in that, The first telescopic component (6) further includes a first guiding elastic component (62). The first guiding elastic component (62) is spaced apart from the double telescopic jack (61). The first guiding elastic component (62) includes a fixed rod (621), two sleeve rods (622) and a spring (623). One end of the spring (623) is connected to the fixed rod (621). The spring (623) is sleeved on the fixed rod (621). The other end of the spring (623) is connected to the sleeve rod (622). Each sleeve rod (622) is connected to each first side guard plate (43). When the spring (623) expands and contracts, the sleeve rod (622) is movably arranged relative to the fixed rod (621).

7. The isolation device for a filling support according to claim 1, characterized in that, The isolation device further includes a second jack (7). One end of the second jack (7) is fixed on the base (1). The other end of the second jack (7) is connected to the lower isolation plate (42) through a connecting beam (421). By the expansion and contraction of the telescopic rod of the second jack (7), the lower isolation plate (42) is driven to move up and down, so as to block the gap between the lower isolation plate (42) and the working ground.

8. The isolation device for filling a support according to claim 7, characterized in that, The isolation device further includes a reinforcement component (8). The reinforcement component (8) includes a slider (81) and a chute (82). The slider (81) is fixed on the base (1). The chute (82) is arranged on the lower isolation plate (42). When the lower isolation plate (42) moves up and down, the chute (82) moves relative to the slider (81). The slider (81) is used to reinforce the stability of the lower isolation plate (42) during the movement.

9. The isolation device for filling a support according to claim 8, characterized in that, The isolation plate (4) further includes two second side guard plates (44). The two second side guard plates (44) are respectively arranged on both sides of the lower isolation plate (42). The two second side guard plates (44) are movably arranged relative to the lower isolation plate (42). The moving directions of the two second side guard plates (44) are perpendicular to the moving direction of the lower isolation plate (42).

10. The isolation device for filling support according to claim 9, characterized in that, The isolation device further includes two single telescopic jacks (91). The two single telescopic jacks (91) are respectively located on both sides of the chute (82). Each single telescopic jack (91) is fixed on the chute (82). The telescopic rods of each single telescopic jack (91) are connected to each second side guard plate (44). The two second side guard plates (44) are driven by the expansion and contraction of the single telescopic jacks (91).