Groove pushing and filling device capable of improving tailing pushing and discharging efficiency

Abstract

The utility model discloses a groove pushing and filling device capable of improving tailing pushing and discharging efficiency, and relates to the field of groove pushing and filling. The bulldozer comprises a bulldozer body, a hydraulic system is arranged on the bulldozer body, and a main bulldozing plate is arranged at the output end of the hydraulic system. Through the arrangement of the driving assembly, the driving assembly drives the two auxiliary bulldozing plates to get close to each other or get away from each other through the driving screw rod, the first adjusting piece, the second adjusting piece, the driving cylinder and the third adjusting piece, so that a worker can adjust the width sum of the main bulldozing plate and the auxiliary bulldozing plates according to the pushing and filling requirements, and therefore the width of a groove is controlled; the applicability of the device is improved, multiple times of bulldozing work caused by the fact that the width of the groove is larger than the width of the bulldozing plate is reduced, when the two auxiliary bulldozing plates are away from each other, the sand storage amount of the main bulldozing plate and the auxiliary bulldozing plates is increased, the pushing and discharging efficiency is improved, the construction cost is reduced, and when the two auxiliary bulldozing plates are close to each other, the occupied space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of trench pushing and filling, in particular to a trench pushing and filling device capable of improving tailings pushing and discharging efficiency. Background Art

[0002] A large part of the work involved in closing a tailings pond is the push and fill of tailings within the pond, with push and fill costs accounting for approximately 70% of the total cost. This process is primarily done by bulldozers, which have long push distances and low efficiency. Improving the push and fill efficiency of bulldozers and reducing construction costs are of great significance.

[0003] However, there are some problems with the bulldozers currently used in the tailings pushing and filling process: the front of the bulldozer is connected to the bulldozer blade through a hydraulic system, and the bulldozer blade is controlled to rise and fall. However, during the road construction process, the bulldozer blades of most bulldozers used are fixed in length and cannot be adjusted. During the tailings pushing and filling process, the bulldozer blade cannot be widened to save the number of bulldozing times. After the tailings pushing and filling is completed, the bulldozer blade cannot be narrowed to save space.

[0004] Therefore, we have made improvements to this problem and proposed a trench pushing and filling device that improves the efficiency of tailings pushing and discharging. Utility Model Content

[0005] The purpose of the utility model is to solve the problems of the bulldozers currently used in the process of tailings pushing and filling: the front of the bulldozer is connected to the bulldozer plate through a hydraulic system, and the lifting and lowering of the bulldozer plate is controlled. However, in the process of road construction, the bulldozer plates of most bulldozers used are fixed in length and cannot be adjusted. During the process of tailings pushing and filling, the bulldozer plate cannot be widened to save the number of bulldozing times, and after the tailings pushing and filling is completed, the bulldozer plate cannot be narrowed to save space.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

[0007] A trench pushing and filling device for improving tailings pushing and discharging efficiency is provided to improve the above-mentioned problem.

[0008] The specific application is as follows:

[0009] The invention comprises: a bulldozer body, a hydraulic system is provided on the bulldozer body, a main bulldozer is provided at the output end of the hydraulic system, an L-shaped slide is provided on both sides of the main bulldozer, an auxiliary bulldozer is slidably fitted in the L-shaped slide, a driving assembly is provided on one side of the main bulldozer, two first adjusting parts are provided on one side of the main bulldozer, a driving screw is rotatably fitted in the two first adjusting parts, the driving screw is matched with the driving assembly, a second adjusting part is slidably fitted in the first adjusting part, a driving cylinder is rotatably fitted in the second adjusting part, a plurality of movable slides are provided on the circumference of the driving screw, the inner side of the movable slide is slidably connected to the driving cylinder, a third adjusting part is slidably fitted in the second adjusting part, the third adjusting part is matched with the driving cylinder, a first fixed block is provided on the top of the side surface of the auxiliary bulldozer, the third adjusting part is fixedly connected to the first fixed block, a limiting assembly is provided on one side of the main bulldozer, a second fixed block is provided at the bottom of the side surface of the auxiliary bulldozer, and the limiting assembly is fixedly connected to the second fixed block.

[0010] Through the set drive assembly, the drive assembly drives the two auxiliary bulldozers to move closer to or away from each other through the driving screw, the first adjusting member, the second adjusting member, the driving cylinder and the third adjusting member, so that the staff can adjust the width of the main bulldozer and the auxiliary bulldozer according to the pushing and filling requirements, thereby controlling the trench width, improving the applicability of the device, and reducing multiple bulldozing work caused by the trench width being greater than the width of the bulldozer. When the two auxiliary bulldozers are away from each other, the sand storage capacity of the main bulldozer and the auxiliary bulldozer is increased, the pushing and discharge efficiency is improved, and the construction cost is reduced. When the two auxiliary bulldozers are close to each other, space is saved.

[0011] As a preferred embodiment of the trench pushing and filling device for improving the tailings pushing and discharge efficiency provided by the utility model, the driving assembly includes a driving motor installed on the side of the main bulldozer plate, the output end of the driving motor is equipped with a worm, one end of the driving screw is fixedly connected to a worm wheel, and the worm and the worm wheel are engaged with each other.

[0012] As a preferred embodiment of the trench pushing and filling device for improving the tailings pushing and discharge efficiency provided by the utility model, the limiting assembly includes a limiting shell installed on the side of the main bulldozer plate, a movable groove is provided in the limiting shell, and two movable blocks are slidably fitted in the movable groove. A movable rod is installed on the side of each of the two movable blocks, and one end of the movable rod is fixedly connected to the second fixed block.

[0013] As a preferred embodiment of the trench pushing and filling device for improving the tailings pushing and discharge efficiency provided by the present invention, the first adjusting part includes an outer cylinder installed on the side of the main bulldozer plate, the driving screw is rotatably fitted in the outer cylinder, and the inner wall of the outer cylinder is provided with a first limiting groove, and the second adjusting part is slidably fitted in the first limiting groove.

[0014] As a preferred embodiment of the trench pushing and filling device for improving the tailings pushing and discharge efficiency provided by the present invention, the second adjusting member includes a first limit block that is slidably fitted in the first limit groove, a middle cylinder is installed on the side of the first limit block, a threaded hole is opened at one end of the first limit block, the threaded hole is threadedly fitted with the driving screw, the driving cylinder is rotatably fitted in the middle cylinder, and the third adjusting member is slidably fitted in the second limit groove.

[0015] As a preferred embodiment of the trench pushing and filling device for improving the tailings pushing and discharge efficiency provided by the utility model, the driving cylinder includes a threaded cylinder that is rotatably engaged in the middle cylinder, and a movable slider is installed on the inner side of the threaded cylinder. The movable slider is slidably connected to the inner side of the movable slide groove, and the threaded cylinder is threadedly engaged with the third adjusting member.

[0016] As a preferred embodiment of the trench pushing and filling device for improving the tailings pushing and discharge efficiency provided by the utility model, the third adjusting member includes a second limit block that is slidably fitted in the second limit groove, and an inner cylinder is installed on the side of the second limit block, and a threaded circular groove is opened at one end of the inner cylinder, and the threaded circular groove is threadedly fitted with the threaded cylinder, and one end of the inner cylinder is fixedly connected to the first fixed block.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model is provided with a driving assembly, which drives the two auxiliary bulldozers to move closer to or away from each other through a driving screw, a first adjusting member, a second adjusting member, a driving cylinder and a third adjusting member, so that the staff can adjust the width of the main bulldozer and the auxiliary bulldozer according to the pushing and filling requirements, thereby controlling the trench width, improving the applicability of the device, reducing multiple bulldozing work caused by the trench width being greater than the width of the bulldozer, and when the two auxiliary bulldozers move away from each other, the sand storage capacity of the main bulldozer and the auxiliary bulldozer is increased, the pushing and discharge efficiency is improved, and the construction cost is reduced; when the two auxiliary bulldozers are close to each other, space is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a trench pushing and filling device for improving tailings pushing and discharging efficiency provided in this application;

[0020] Figure 2 A schematic diagram of the structure of the bulldozer device of the trench filling device for improving the tailings pushing and discharging efficiency provided in this application;

[0021] Figure 3 Schematic diagram of the main bulldozer structure of the trench filling device for improving tailings pushing and discharging efficiency provided in this application;

[0022] Figure 4Schematic diagram of the auxiliary bulldozer plate structure of the trench pushing and filling device for improving the tailings pushing and discharging efficiency provided in this application;

[0023] Figure 5 A schematic diagram of the drive assembly structure of a trench pushing and filling device for improving tailings pushing and discharging efficiency provided in this application;

[0024] Figure 6 A schematic diagram of the inner wall structure of the first adjusting member of the trench pushing and filling device for improving the tailings pushing and discharging efficiency provided by the present application;

[0025] Figure 7 A schematic cross-sectional view of the first adjusting member of the trench filling device for improving tailings pushing and discharging efficiency provided in this application;

[0026] Figure 8 A schematic cross-sectional view of the second adjusting member of the trench filling device for improving tailings pushing and discharging efficiency provided in this application;

[0027] Figure 9 A schematic diagram of the cross-sectional structure of the driving cylinder of the trench pushing and filling device for improving the tailings pushing and discharging efficiency provided in this application;

[0028] Figure 10 A schematic cross-sectional view of the third adjusting member of the trench pushing and filling device for improving tailings pushing and discharging efficiency provided by the present application;

[0029] Figure 11 Schematic diagram of the cross-sectional structure of the limiting component of the trench pushing and filling device for improving the tailings pushing and discharge efficiency provided in this application.

[0030] Indicated in the figure:

[0031] 1. Bulldozer body; 2. Hydraulic system; 3. Main bulldozer blade; 31. L-shaped slide; 4. Auxiliary bulldozer blade; 41. First fixed block; 42. Second fixed block; 5. Driving assembly; 501. Driving motor; 502. Worm; 503. Worm gear; 6. First adjusting member; 601. Outer cylinder; 602. First limiting groove; 7. Second adjusting member; 701. First limiting block; 702. Middle cylinder; 703. Second limiting groove; 704. Threaded hole; 8. Driving cylinder; 801. Threaded cylinder; 802. Movable slider; 9. Third adjusting member; 901. Second limiting block; 902. Inner cylinder; 903. Threaded circular groove; 10. Limiting assembly; 1001. Limiting shell; 1002. Moving groove; 1003. Moving block; 1004. Moving rod; 11. Driving screw; 12. Movable slide. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0033] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0036] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0037] As described in the background technology, there are some problems with the bulldozers currently used in the tailings pushing and filling process: the front of the bulldozer is connected to the bulldozer plate through a hydraulic system, and the bulldozer plate is controlled to rise and fall. However, in the road construction process, the bulldozer plates of most bulldozers used are fixed in length and cannot be adjusted. During the tailings pushing and filling process, the bulldozer plate cannot be widened to save the number of bulldozing times. After the tailings pushing and filling is completed, the bulldozer plate cannot be narrowed to save space.

[0038] In order to solve this technical problem, the utility model provides a trench pushing and filling device which improves the tailings pushing and discharging efficiency.

[0039] Specifically, please refer to Figure 1-11The trench pushing and filling device for improving the efficiency of tailings pushing and discharging specifically includes: a bulldozer body 1, a hydraulic system 2 is provided on the bulldozer body 1, a main bulldozer plate 3 is provided at the output end of the hydraulic system 2, L-shaped chutes 31 are provided on both sides of the main bulldozer plate 3, an auxiliary bulldozer plate 4 is slidably fitted in the L-shaped chute 31, a driving assembly 5 is installed on one side of the main bulldozer plate 3, two first adjusting members 6 are installed on one side of the main bulldozer plate 3, a driving screw 11 is rotatably fitted in the two first adjusting members 6, the driving screw 11 cooperates with the driving assembly 5, and a second adjusting member is slidably fitted in the first adjusting member 6 7. The second adjusting member 7 is rotatably matched with the driving cylinder 8. A plurality of movable sliding grooves 12 are opened on the peripheral side of the driving screw 11. The inner side of the movable sliding groove 12 is slidingly connected with the driving cylinder 8. The second adjusting member 7 is slidably matched with the third adjusting member 9. The third adjusting member 9 cooperates with the driving cylinder 8. A first fixed block 41 is installed on the top of the side of the auxiliary bulldozer blade 4, and the third adjusting member 9 is fixedly connected to the first fixed block 41. A limiting assembly 10 is installed on one side of the main bulldozer blade 3, and a second fixed block 42 is installed on the bottom of the side of the auxiliary bulldozer blade 4. The limiting assembly 10 is fixedly connected to the second fixed block 42.

[0040] By setting up the driving assembly 5, the driving assembly 5 drives the two auxiliary bulldozers 4 to move closer to or away from each other through the driving screw 11, the first adjusting member 6, the second adjusting member 7, the driving cylinder 8 and the third adjusting member 9, so that the staff can adjust the width of the main bulldozer 3 and the auxiliary bulldozer 4 according to the pushing and filling requirements, thereby controlling the trench width, improving the applicability of the device, and reducing multiple bulldozing work caused by the trench width being greater than the width of the bulldozer. When the two auxiliary bulldozers 4 are away from each other, the sand storage capacity of the main bulldozer 3 and the auxiliary bulldozer 4 is increased, the pushing and discharge efficiency is improved, and the construction cost is reduced. When the two auxiliary bulldozers 4 are close to each other, space is saved.

[0041] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0044] Please refer to Figure 1-11A trench pushing and filling device for improving the efficiency of tailings pushing and discharging comprises: a bulldozer body 1, a hydraulic system 2 is provided on the bulldozer body 1, a main bulldozer plate 3 is provided at the output end of the hydraulic system 2, L-shaped chutes 31 are provided on both sides of the main bulldozer plate 3, an auxiliary bulldozer plate 4 is slidably fitted in the L-shaped chute 31, a driving assembly 5 is provided on one side of the main bulldozer plate 3, two first adjusting members 6 are provided on one side of the main bulldozer plate 3, a driving screw 11 is rotatably fitted in the two first adjusting members 6, the driving screw 11 is matched with the driving assembly 5, and a second adjusting member is slidably fitted in the first adjusting member 6 Part 7, a driving cylinder 8 is rotatably engaged in the second adjusting part 7, a plurality of movable chutes 12 are provided on the peripheral side of the driving screw 11, the inner side of the movable chutes 12 is slidably connected to the driving cylinder 8, a third adjusting part 9 is slidably engaged in the second adjusting part 7, the third adjusting part 9 is engaged with the driving cylinder 8, a first fixed block 41 is installed on the top of the side of the auxiliary bulldozer 4, the third adjusting part 9 is fixedly connected to the first fixed block 41, a limiting assembly 10 is installed on one side of the main bulldozer 3, a second fixed block 42 is installed on the bottom of the side of the auxiliary bulldozer 4, the limiting assembly 10 is fixedly connected to the second fixed block 42. The driving assembly 5 includes a driving motor 501 installed on the side of the main bulldozer 3, a worm 502 is installed on the output end of the driving motor 501, a worm gear 503 is fixedly connected to one end of the driving screw 11, and the worm gear 502 and the worm gear 503 are meshed with each other. The limiting assembly 10 includes a limiting housing 1001 mounted on the side of the main bulldozer blade 3. The limiting housing 1001 is provided with a movable groove 1002. Two movable blocks 1003 are slidably engaged in the movable groove 1002. The sides of the two movable blocks 1003 are each equipped with a movable rod 1004. One end of the movable rod 1004 is fixedly connected to the second fixed block 42. The first adjusting member 6 includes an outer cylinder 601 mounted on the side of the main bulldozer blade 3. The driving screw 11 is rotatably engaged in the outer cylinder 601. The inner wall of the outer cylinder 601 is provided with a first limiting groove 602. The second adjusting member 7 is slidably engaged in the first limiting groove 602. The second adjusting member 7 includes a first limiting block 701 that slidably fits within the first limiting groove 602. A middle cylinder 702 is mounted on the side of the first limiting block 701. A threaded hole 704 is defined at one end of the first limiting block 701. The threaded hole 704 is threadedly engaged with the drive screw 11. The drive cylinder 8 is rotatably engaged within the middle cylinder 702. The third adjusting member 9 slidably fits within the second limiting groove 703. The drive cylinder 8 includes a threaded cylinder 801 that rotatably fits within the middle cylinder 702. A movable slider 802 is mounted on the inner side of the threaded cylinder 801. The movable slider 802 is slidably connected to the inner side of the movable slide groove 12. The threaded cylinder 801 is threadedly engaged with the third adjusting member 9. The third adjusting member 9 includes a second limiting block 901 that slides into the second limiting groove 703. An inner cylinder 902 is installed on the side of the second limiting block 901. A threaded circular groove 903 is opened at one end of the inner cylinder 902. The threaded circular groove 903 is threadedly matched with the threaded cylinder 801. One end of the inner cylinder 902 is fixedly connected to the first fixing block 41.

[0045] Implementation process: When the bulldozer blade length needs to be adjusted, the driving motor 501 is started, and the driving motor 501 drives the worm 502 to rotate, and the rotation of the worm 502 drives the worm wheel 503 to rotate, and the rotation of the worm wheel 503 drives the driving screw 11 to rotate. Since the threaded hole 704 is threadedly matched with the driving screw 11 and the first limit block 701 is slidably matched in the first limit groove 602, the rotation of the driving screw 11 drives the middle cylinder 702 to move linearly, and the linear movement of the middle cylinder 702 drives the threaded cylinder 801 to move. The movable slider 802 in 801 is slidably connected with the movable slide groove 12, and the threaded cylinder 801 is rotated and matched in the middle cylinder 702. Therefore, when the driving screw 11 rotates, the threaded cylinder 801 is driven to rotate. Since the threaded cylinder 801 is rotated and matched with the threaded circular groove 903, and the second limiting block 901 is slidably matched in the second limiting groove 703, the rotation of the threaded cylinder 801 drives the inner cylinder 902 to move linearly. The linear movement of the inner cylinder 902 drives the corresponding first fixed block 41 to move, and the movement of the first fixed block 41 drives the auxiliary bulldozer blade 4 Sliding in the L-shaped chute 31, the staff can adjust the two auxiliary bulldozers 4, thereby increasing the width and the main bulldozer 3 and the auxiliary bulldozer 4, improving the sand storage capacity of the main bulldozer 3 and the auxiliary bulldozer 4, improving the pushing efficiency, and reducing the construction cost, thereby solving the problem of not being able to adjust the width of the bulldozer to save the number of bulldozers, and when the tailings are pushed and filled, the drive motor 501 can be started again to drive the worm 502 to rotate in the opposite direction to achieve narrowing the bulldozer and save space. Secondly, When pushing and filling tailings, a linear pushing method is usually adopted, and the groove width is equal to the bulldozer width. The device can adjust the sum of the widths of the main bulldozer 3 and the auxiliary bulldozer 4 according to the pushing and filling requirements, thereby controlling the groove width, improving the applicability of the device, and reducing multiple bulldozing work caused by the groove width being greater than the width of the bulldozer. Through the set limit assembly 10, when the two auxiliary bulldozers 4 approach each other or move away from each other, the set moving block 1003 and moving rod 1004 are used to improve the stability of the two auxiliary bulldozers 4 during movement.

[0046] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A trench filling device for improving tailings pushing and discharging efficiency, comprising: A bulldozer body (1) is provided with a hydraulic system (2), and a main bulldozer plate (3) is provided at the output end of the hydraulic system (2), characterized in that L-shaped chutes (31) are provided on both sides of the main bulldozer plate (3), and an auxiliary bulldozer plate (4) is slidably fitted in the L-shaped chutes (31), a driving assembly (5) is provided on one side of the main bulldozer plate (3), and two first adjusting members (6) are provided on one side of the main bulldozer plate (3), and a driving screw (11) is rotatably fitted in the two first adjusting members (6), and the driving screw (11) is matched with the driving assembly (5), and a second adjusting member (7) is slidably fitted in the first adjusting member (6), and the second adjusting member (7) is rotatably matched with a driving cylinder (8), a plurality of movable sliding grooves (12) are provided on the peripheral side of the driving screw (11), the inner side of the movable sliding groove (12) is slidingly connected with the driving cylinder (8), a third adjusting member (9) is slidably matched with the second adjusting member (7), the third adjusting member (9) is matched with the driving cylinder (8), a first fixed block (41) is installed on the top of the side of the auxiliary bulldozer (4), the third adjusting member (9) is fixedly connected to the first fixed block (41), a limiting assembly (10) is installed on one side of the main bulldozer (3), a second fixed block (42) is installed on the bottom of the side of the auxiliary bulldozer (4), the limiting assembly (10) is fixedly connected to the second fixed block (42).

2. A trench pushing and filling device for improving tailings pushing and discharging efficiency according to claim 1, characterized in that: The drive assembly (5) comprises a drive motor (501) mounted on the side of the main bulldozer blade (3); a worm (502) is mounted on the output end of the drive motor (501); one end of the drive screw (11) is fixedly connected to a worm wheel (503); and the worm (502) and the worm wheel (503) are meshed with each other.

3. A trench pushing and filling device for improving tailings pushing and discharging efficiency according to claim 1, characterized in that: The limiting assembly (10) comprises a limiting shell (1001) mounted on the side of the main bulldozer (3), a movable groove (1002) being provided in the limiting shell (1001), two movable blocks (1003) being slidably fitted in the movable groove (1002), and movable rods (1004) being mounted on the sides of the two movable blocks (1003), one end of the movable rod (1004) being fixedly connected to the second fixed block (42).

4. A trench pushing and filling device for improving tailings pushing and discharging efficiency according to claim 1, characterized in that: The first adjusting member (6) comprises an outer cylinder (601) mounted on the side of the main bulldozer (3); the driving screw (11) is rotatably engaged in the outer cylinder (601); a first limiting groove (602) is provided on the inner wall of the outer cylinder (601); and the second adjusting member (7) is slidably engaged in the first limiting groove (602).

5. A trench pushing and filling device for improving tailings pushing and discharging efficiency according to claim 4, characterized in that: The second adjusting member (7) includes a first limiting block (701) that is slidably engaged in the first limiting groove (602), a middle cylinder (702) is installed on the side of the first limiting block (701), a threaded hole (704) is opened at one end of the first limiting block (701), the threaded hole (704) is threadedly engaged with the driving screw (11), the driving cylinder (8) is rotatably engaged in the middle cylinder (702), and the third adjusting member (9) is slidably engaged in the second limiting groove (703).

6. A trench pushing and filling device for improving tailings pushing and discharging efficiency according to claim 5, characterized in that: The driving cylinder (8) includes a threaded cylinder (801) that is rotatably engaged in the middle cylinder (702), a movable slider (802) is installed on the inner side of the threaded cylinder (801), the movable slider (802) is slidably connected to the inner side of the movable slide groove (12), and the threaded cylinder (801) is threadedly engaged with the third adjusting member (9).

7. A trench pushing and filling device for improving tailings pushing and discharging efficiency according to claim 6, characterized in that: The third adjusting member (9) includes a second limiting block (901) that is slidably engaged in the second limiting groove (703); an inner cylinder (902) is installed on the side of the second limiting block (901); a threaded circular groove (903) is opened at one end of the inner cylinder (902); the threaded circular groove (903) is threadedly engaged with the threaded cylinder (801); and one end of the inner cylinder (902) is fixedly connected to the first fixing block (41).

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