Side wing shovel with controllable opening and closing angle

Abstract

The invention discloses a side wing shovel with a controllable opening and closing angle, and relates to the technical field of snow removal equipment, the side wing shovel comprises a front-end crossbeam fixing frame and a rear-end crossbeam fixing frame, the front-end crossbeam fixing frame and the rear-end crossbeam fixing frame are both fixedly connected with a vehicle, one end of the front-end crossbeam fixing frame is fixedly connected with an oil cylinder connecting plate, and the other end of the front-end crossbeam fixing frame is fixedly connected with an oil cylinder. The lower end of the oil cylinder connecting plate is rotationally connected with a second front-end connecting rod, the position, located above the second front-end connecting rod, of the oil cylinder connecting plate is rotationally connected with a first front-end connecting rod, and a third front-end connecting rod is arranged between the ends, away from the oil cylinder connecting plate, of the first front-end connecting rod and the second front-end connecting rod. Two ends of the third front-end connecting rod are rotationally connected with the first front-end connecting rod and the second front-end connecting rod The front end and the rear end of the side wing shovel are simultaneously and stably lifted, the front lifting oil cylinder and the rear lifting oil cylinder control the side wing shovel, the snow plate direct pushing type opening and closing structure is adopted, and the swing oil cylinder randomly controls the opening and closing angle.

Description

Technical Field

[0001] The invention relates to the technical field of snow removal equipment, in particular to a side shovel with controllable opening and closing angles. Background Art

[0002] A snowplow is a vehicle used to clear snow from the road. With the help of the plowshare snowplow at the front end, the snowplow pushes the snow to one or both sides of the line. The side of the vehicle is also equipped with foldable wings to increase the snow removal surface. In addition, there are also wheel-type snowplows, which have a rotating wheel at the front end perpendicular to the center line of the line. When the rotating wheel is driven by the power of the vehicle, the blades on the wheel scrape the snow and throw it out of the road.

[0003] Domestic side shovels are generally rotary lifting, relying only on a lifting cylinder at the front end and a movable support rod at the rear end. When the vehicle is running, the snow shovel is lifted and raised, which is very unstable and poses a safety hazard. When snow removal is working, the deployment angle is also limited by the length of the rear support rod, which makes it inconvenient to adjust the working angle. Due to structural limitations and the need to install springs to avoid obstacles, there are still major defects in application. For this reason, we provide a side shovel with controllable opening and closing angles to solve the problems of the existing technology. Summary of the invention

[0004] The object of the present invention is to provide a wing shovel with controllable opening and closing angles to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A side shovel with controllable opening and closing angles, comprising a front beam fixing frame and a rear beam fixing frame, wherein the front beam fixing frame and the rear beam fixing frame are both fixedly connected to a vehicle, one end of the front beam fixing frame is fixedly connected to a cylinder connecting plate, the lower end of the cylinder connecting plate is rotatably connected to a second front connecting rod, the cylinder connecting plate is rotatably connected to a first front connecting rod at a position above the second front connecting rod, a third front connecting rod is arranged between ends of the first and second front connecting rods away from the cylinder connecting plate, and both ends of the third front connecting rod are rotatably connected to the first and second front connecting rods;

[0007] An L-shaped bracket is fixedly connected to one end of the rear end beam fixing frame, a main longitudinal beam is arranged between the L-shaped bracket and the third front end connecting rod, a connector for connection is arranged between the main longitudinal beam and the third front end connecting rod, and a first lifting component for lifting one end of the main longitudinal beam is arranged at the upper end of the oil cylinder connecting plate;

[0008] The end of the L-shaped bracket away from the rear end beam fixing frame is provided with a second lifting component for lifting the other end of the main longitudinal beam;

[0009] A fourth rotating seat is installed at one end of the main longitudinal beam, and a connecting back plate is rotatably connected to the fourth rotating seat. A side shovel plate is installed on the connecting back plate. The other end of the main longitudinal beam is provided with an adjustment component for adjusting the opening and closing angle of the side shovel plate, and shovel plate supports are provided at both ends of the side shovel plate.

[0010] As a further solution of the present invention: the connector includes a connecting box, which is fixedly connected to the main longitudinal beam, and a slot is provided on one side of the connecting box. A plug plate that cooperates with the slot is fixedly connected to the side of the third front end connecting rod close to the main longitudinal beam, and a lock hole is provided in the middle of the plug plate. A rectangular tube is fixedly connected to the upper end of the connecting box, and a locking component that cooperates with the plug plate is provided in the rectangular tube.

[0011] As a further solution of the present invention: the locking assembly includes a hollow plug, which is slidably connected in a rectangular tube, a first threaded rod is rotatably connected to the upper end of the rectangular tube, a threaded sleeve is fixedly connected to the upper end of the hollow plug, the first threaded rod is threadedly connected to the threaded sleeve, a flip seat is rotatably connected to the upper end of the first threaded rod, a rotating handle is fixedly connected to the flip seat, and a first elastic buckle for fixing the rotating handle is provided on one side of the rectangular tube.

[0012] As a further solution of the present invention: the first lifting assembly includes a front-end lifting cylinder, which is rotatably connected to the upper end of the cylinder connecting plate, and the output end of the front-end lifting cylinder is rotatably connected to a fourth front-end connecting rod, and the lower end of the fourth front-end connecting rod is rotatably connected to the first front-end connecting rod.

[0013] As a further solution of the present invention: the second lifting assembly includes a rear end connecting rod, which is rotatably connected to the position of the lower end of the L-shaped bracket, and a third rotating seat is provided at the end of the rear end connecting rod away from the L-shaped bracket, and a special-shaped adapter seat is provided in the third rotating seat, and the special-shaped adapter seat is installed on the main longitudinal beam, and the end of the cross bar at the upper end of the L-shaped bracket is rotatably connected to the rear end lifting cylinder, and the main longitudinal beam is fixedly connected to the position close to the special-shaped adapter seat, and the output end of the rear end lifting cylinder is placed in the sixth rotating seat, and the third rotating seat and the sixth rotating seat are both provided with rotating pins, which are respectively inserted into the special-shaped adapter seat and the output end of the rear end lifting cylinder, and anti-drop springs are provided at both ends of the rotating pin, and a rear end supporting foot is also provided in the middle of the rear end connecting rod.

[0014] As a further solution of the present invention: a foot plate is installed at the lower end of the rear end supporting foot, and both ends of the foot plate are raised.

[0015] As a further solution of the present invention: the adjustment assembly includes a second rotating seat, the second rotating seat is installed at an end of the main longitudinal beam away from the fourth rotating seat, the second rotating seat is rotatably connected to a buffer, the buffer is installed with a swing cylinder, the first rotating seat is installed on the connecting back plate, and the swing cylinder is rotatably connected to the first rotating seat.

[0016] As a further solution of the present invention: the shovel plate support includes a hexagonal hollow column, which is fixedly connected to the side shovel plate, a hollow telescopic column is slidably connected inside the hexagonal hollow column, a foot plate is fixedly connected to the lower end of the hollow telescopic column, a hexagonal slider is fixedly connected to the upper end of the hollow telescopic column, a sliding cavity matching the hexagonal slider is provided inside the hexagonal hollow column, and an adjustment mechanism for adjusting the extension length of the hollow telescopic column is provided at the upper end of the hexagonal hollow column.

[0017] As a further solution of the present invention: the adjustment mechanism includes a second threaded rod, the second threaded rod is rotatably connected to the top of the hexagonal hollow column, the second threaded rod is threadedly connected to the hexagonal slider, the upper end of the second threaded rod is rotatably connected to a crank, and a second elastic buckle for fixing the crank is also fixedly connected to one side of the hexagonal hollow column.

[0018] As a further solution of the present invention: a plurality of shovel plate guide supports are installed on one side of the connecting back plate close to the main longitudinal beam, and the edge of one end of the shovel plate guide support close to the main longitudinal beam is tilted.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The side shovel of the present invention has the front and rear ends that can be lifted and lowered smoothly at the same time, and is controlled by front and rear lifting cylinders, a snowboard direct-push opening and closing structure, and a swinging cylinder that can freely control the opening and closing angle. After the work is completed, the device is lifted to a height of about 300 mm from the ground, and the entire device operates at a low position with good stability. The front lifting cylinder drives the parallel four-bar device, and the rear lifting cylinder drives the movable joint to lift and lower. The snowboard closing belt has a guiding function. When encountering obstacles, the entire shovel board can bounce to avoid obstacles due to the movable connecting plate at the front four-bar connection and the movable rear cylinder fixing seat; and the swinging cylinder at the rear end of the snowboard is buffered, the overall strength of the equipment is high, the stability is good, and the snowboard opening and closing angle is convenient and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0023] Figure 3 It is a schematic structural diagram of the shovel plate support in the present invention.

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the hexagonal hollow column in the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the connector in the present invention.

[0026] Figure 6 It is a schematic diagram of the internal structure of the rectangular tube in the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the present invention for shoveling snow after being connected to a snowplow.

[0028] Figure 8 The schematic diagram of the top view of the snow shoveling structure of the present invention after being connected to a snowplow.

[0029] Fig. 9 It is a rear view structural schematic diagram of the present invention when connected to a snowplow and shoveling snow.

[0030] Fig.10 It is a schematic diagram of the rear view structure of the present invention when the shovel board is retracted after being connected to the snowplow.

[0031] Fig.11 It is a schematic diagram of the front view structure of the present invention when the shovel board is retracted after being connected to the snowplow.

[0032] Among them: 1. Front-end beam fixing frame; 2. Cylinder connecting plate; 3. Front-end lifting cylinder; 4. First front-end connecting rod; 5. Connector; 6. Main longitudinal beam; 7. First rotating seat; 8. Side shovel plate; 9. Shovel plate supporter; 10. Connecting back plate; 11. Swinging cylinder; 12. Buffer; 13. Second rotating seat; 14. Special-shaped adapter seat; 15. Third rotating seat; 16. Rear-end supporting foot; 17. Rear-end connecting rod; 18. L-shaped bracket; 19. Rear-end beam fixing frame; 20. Second front-end connecting rod; 21. Third front-end connecting rod; 22. Fourth rotating seat; 23. Rear-end lifting cylinder; 24. Fifth rotating seat; 25. Sixth rotating seat; 26. Rotating pin; 27. Fourth front-end connecting rod; 28. Shovel plate guide support;

[0033] 50. first threaded rod; 51. connection box; 52. rotating handle; 53. first elastic buckle; 54. flip seat; 55. rectangular tube; 56. plug plate; 57. slot; 58. threaded sleeve; 59. hollow plug column;

[0034] 91. crank handle; 92. second elastic buckle; 93. foot plate; 94. hexagon socket hollow column; 95. second threaded rod; 96. hexagon socket slider; 97. hollow telescopic column. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 11 In an embodiment of the present invention, a side wing shovel with controllable opening and closing angles includes a front beam fixing frame 1 and a rear beam fixing frame 19, wherein the front beam fixing frame 1 and the rear beam fixing frame 19 are both fixedly connected to a vehicle, one end of the front beam fixing frame 1 is fixedly connected to a cylinder connecting plate 2, the lower end of the cylinder connecting plate 2 is rotatably connected to a second front end connecting rod 20, and the cylinder connecting plate 2 is rotatably connected to a first front end connecting rod 4 at a position above the second front end connecting rod 20, and the first front end connecting rod 4 and the second front end connecting rod 20 are rotatably connected to each other. A third front end connecting rod 21 is provided between one end away from the cylinder connecting plate 2, and both ends of the third front end connecting rod 21 are rotatably connected to the first front end connecting rod 4 and the second front end connecting rod 20; an L-shaped bracket 18 is fixedly connected to one end of the rear end beam fixing frame 19, and a main longitudinal beam 6 is provided between the L-shaped bracket 18 and the third front end connecting rod 21, and a connector 5 for connection is provided between the main longitudinal beam 6 and the third front end connecting rod 21; the provided connector 5 can facilitate the separation of the main longitudinal beam 6 and the second front end connecting rod 20, so as to facilitate disassembly.

[0037] The connector 5 includes a connection box 51, which is fixedly connected to the main longitudinal beam 6, and a slot 57 is provided on one side of the connection box 51. A plug plate 56 that cooperates with the slot 57 is fixedly connected to the side of the third front end connecting rod 21 close to the main longitudinal beam 6, and a lock hole is provided in the middle of the plug plate 56. A rectangular tube 55 is fixedly connected to the upper end of the connection box 51, and a locking assembly that cooperates with the plug plate 56 is provided in the rectangular tube 55; the locking assembly includes a hollow plug column 59, and the hollow plug column 59 is slidably connected in the rectangular tube 55. The upper end of the rectangular tube 55 is rotatably connected to a first threaded rod 50, and the upper end of the hollow plug column 59 is fixedly connected to a threaded sleeve 58, and the first threaded rod 50 is threadedly connected to the threaded sleeve 58. The first threaded rod 50 is threadedly connected to the threaded sleeve 58. The upper end is rotatably connected to a turning seat 54, and a turning handle 52 is fixedly connected to the turning seat 54. A first elastic buckle 53 for fixing the turning handle 52 is provided on one side of the rectangular tube 55; the main longitudinal beam 6 and the third front end connecting rod 21 can be connected by the provided plug plate 56 and slot 57. When connecting, the plug plate 56 is inserted into the slot 57, and then the turning handle 52 is taken out from the first elastic buckle 53. After taking it out, it is rotated to drive the first threaded rod 50 to rotate. The rotation of the first threaded rod 50 and the threaded sleeve 58 can drive the hollow plug column 59 to move downward and insert into the plug plate 56, thereby realizing the locking connection between the third front end connecting rod 21 and the main longitudinal beam 6. When disassembly is required, the first threaded rod 50 is reversed to pull the hollow plug column 59 out of the plug plate 56.

[0038] The upper end of the cylinder connecting plate 2 is provided with a first lifting component for lifting one end of the main longitudinal beam 6; the first lifting component includes a front-end lifting cylinder 3, which is rotatably connected to the upper end of the cylinder connecting plate 2, and the output end of the front-end lifting cylinder 3 is rotatably connected to the fourth front-end connecting rod 27, and the lower end of the fourth front-end connecting rod 27 is rotatably connected to the first front-end connecting rod 4; when working, the action of the output end of the front-end lifting cylinder 3 can drive the fourth front-end connecting rod 27 to perform corresponding movements, and the movement of the fourth front-end connecting rod 27 can drive the first front-end connecting rod 4 and the second front-end connecting rod 20 to perform corresponding actions, thereby realizing the lifting of one end of the main longitudinal beam 6.

[0039] The end of the L-shaped bracket 18 away from the rear end beam fixing frame 19 is provided with a second lifting assembly for lifting the other end of the main longitudinal beam 6; the second lifting assembly includes a rear end connecting rod 17, and the rear end connecting rod 17 is rotatably connected to the position of the lower end of the L-shaped bracket 18, and the end of the rear end connecting rod 17 away from the L-shaped bracket 18 is provided with a third rotating seat 15, and a special-shaped adapter seat 14 is arranged in the third rotating seat 15, and the special-shaped adapter seat 14 is installed on the main longitudinal beam 6, and the end of the cross bar at the upper end of the L-shaped bracket 18 is rotatably connected to the rear end lifting cylinder 23, and the main longitudinal beam 6 is fixedly connected to the sixth rotating seat 25 near the special-shaped adapter seat 14. The output end of the cylinder 23 is placed in the sixth rotating seat 25, and the third rotating seat 15 and the sixth rotating seat 25 are both provided with a rotating pin 26. The rotating pin 26 is respectively inserted into the special-shaped adapter seat 14 and the output end of the rear end lifting cylinder 23, and both ends of the rotating pin 26 are provided with anti-dropping retaining springs. A rear end supporting foot 16 is also provided in the middle of the rear end connecting rod 17; a foot plate is installed at the lower end of the rear end supporting foot 16, and both ends of the foot plate are raised; when working, the action of the output end of the rear end lifting cylinder 23 can drive the sixth rotating seat 25 and the main longitudinal beam 6 to perform corresponding lifting and lowering. At the same time, the rotating pin 26 is detachable, which can be conveniently cooperated with the connector 5 to disassemble the main longitudinal beam 6, and is easy to use.

[0040] A fourth rotating seat 22 is installed at one end of the main longitudinal beam 6, and a connecting back plate 10 is rotatably connected to the fourth rotating seat 22, and a side shovel plate 8 is installed on the connecting back plate 10. The other end of the main longitudinal beam 6 is provided with an adjusting component for adjusting the opening and closing angle of the side shovel plate 8. The adjusting component includes a second rotating seat 13, and the second rotating seat 13 is installed at one end of the main longitudinal beam 6 away from the fourth rotating seat 22. A buffer 12 is rotatably connected to the second rotating seat 13, and a swing cylinder 11 is installed on the buffer 12. The first rotating seat 7 is installed on the connecting back plate 10, and the swing cylinder 11 is rotatably connected to the first rotating seat 7; when working, the action of the output end of the swing cylinder 11 can drive the side shovel plate 8 to move, and the opening and closing angle of the side shovel plate 8 can be adjusted by controlling the extended length of the output end of the swing cylinder 11. At the same time, the buffer 12 provided can play a buffering role, which can reduce the damage to the cylinder when encountering an obstacle.

[0041] Both ends of the side shovel plate 8 are provided with a shovel plate support 9; the shovel plate support 9 includes a hexagonal hollow column 94, the hexagonal hollow column 94 is fixedly connected to the side shovel plate 8, a hollow telescopic column 97 is slidably connected inside the hexagonal hollow column 94, a foot plate 93 is fixedly connected to the lower end of the hollow telescopic column 97, a hexagonal slider 96 is fixedly connected to the upper end of the hollow telescopic column 97, a sliding cavity matching the hexagonal slider 96 is opened inside the hexagonal hollow column 94, and an adjustment mechanism for adjusting the extension length of the hollow telescopic column 97 is provided at the upper end of the hexagonal hollow column 94; the adjustment mechanism includes a second threaded rod 95, the The second threaded rod 95 is rotatably connected to the top of the hexagonal hollow column 94, and the second threaded rod 95 is threadedly connected to the hexagonal slider 96. The upper end of the second threaded rod 95 is rotatably connected to the crank 91, and one side of the hexagonal hollow column 94 is also fixedly connected to a second elastic buckle 92 for fixing the crank 91; the provided foot plate 93 can play an auxiliary supporting role during operation. When the height needs to be adjusted, the crank 91 is first taken out of the second elastic buckle 92, and then the second threaded rod 95 is rotated. The rotation of the second threaded rod 95 and the hexagonal slider 96 can drive the hollow telescopic column 97 to move downward, thereby realizing the lifting and lowering adjustment.

[0042] A plurality of shovel plate guide supports 28 are installed on one side of the connecting back plate 10 close to the main longitudinal beam 6, and the edge of one end of the shovel plate guide support 28 close to the main longitudinal beam 6 is tilted; the set shovel plate guide support 28 can play a guiding role in folding the connecting back plate 10.

[0043] The working principle of the present invention is: the front-end lifting cylinder 3 and the rear-end lifting cylinder 23 are used for front and rear control, and the side shovel board 8 can be adjusted to be lifted and lowered as needed. The side shovel board 8 adopts the swing cylinder 11 direct push type to open and close, and the swing cylinder 11 can control the opening and closing angle at will. After the work is completed, the side shovel board 8 can be lifted up so that the height of the side shovel board 8 is about 300mm from the ground. The front-end lifting cylinder 3 drives the parallel four-bar structure formed by the first front-end connecting rod 4, the third front-end connecting rod 21, the second front-end connecting rod 20 and the cylinder connecting plate 2, and the rear-end lifting cylinder 23 drives the corresponding movable joints to lift and lower. When shoveling snow, if an obstacle is encountered due to the movable connecting plate at the front four-link and the movable fixing seat of the rear-end cylinder; and the swing cylinder 11 at the rear end of the snowboard is buffered to avoid impact damage, and the connector 5 provided at the same time can facilitate quick disassembly.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Although this specification is described in accordance with the implementation modes, not every implementation mode includes only one technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A side wing shovel with controllable opening and closing angles, comprising a front beam fixing frame (1) and a rear beam fixing frame (19), wherein the front beam fixing frame (1) and the rear beam fixing frame (19) are both fixedly connected to a vehicle, characterized in that: One end of the front end beam fixing frame (1) is fixedly connected to a cylinder connecting plate (2), the lower end of the cylinder connecting plate (2) is rotatably connected to a second front end connecting rod (20), the cylinder connecting plate (2) is rotatably connected to a first front end connecting rod (4) at a position above the second front end connecting rod (20), a third front end connecting rod (21) is provided between the first front end connecting rod (4) and the second front end connecting rod (20) at one end away from the cylinder connecting plate (2), and both ends of the third front end connecting rod (21) are rotatably connected to the first front end connecting rod (4) and the second front end connecting rod (20); One end of the rear end beam fixing frame (19) is fixedly connected to an L-shaped bracket (18), a main longitudinal beam (6) is provided between the L-shaped bracket (18) and the third front end connecting rod (21), a connector (5) for connection is provided between the main longitudinal beam (6) and the third front end connecting rod (21), and a first lifting component for lifting one end of the main longitudinal beam (6) is provided at the upper end of the oil cylinder connecting plate (2); The end of the L-shaped bracket (18) away from the rear end beam fixing frame (19) is provided with a second lifting component for lifting the other end of the main longitudinal beam (6); A fourth rotating seat (22) is installed at one end of the main longitudinal beam (6), a connecting back plate (10) is rotatably connected to the fourth rotating seat (22), a side shovel plate (8) is installed on the connecting back plate (10), and an adjustment component for adjusting the opening and closing angle of the side shovel plate (8) is provided at the other end of the main longitudinal beam (6), and shovel plate supports (9) are provided at both ends of the side shovel plate (8).

2. A wing shovel with controllable opening and closing angle according to claim 1, characterized in that: The connector (5) comprises a connection box (51), the connection box (51) is fixedly connected to the main longitudinal beam (6), a slot (57) is provided on one side of the connection box (51), a plug plate (56) matching with the slot (57) is fixedly connected to the side of the third front end connecting rod (21) close to the main longitudinal beam (6), a locking hole is provided in the middle of the plug plate (56), a rectangular tube (55) is fixedly connected to the upper end of the connection box (51), and a locking component matching with the plug plate (56) is provided in the rectangular tube (55).

3. A wing shovel with controllable opening and closing angle according to claim 2, characterized in that: The locking assembly comprises a hollow plug post (59), the hollow plug post (59) is slidably connected in the rectangular tube (55), the upper end of the rectangular tube (55) is rotatably connected to a first threaded rod (50), the upper end of the hollow plug post (59) is fixedly connected to a threaded sleeve (58), the first threaded rod (50) is threadedly connected to the threaded sleeve (58), the upper end of the first threaded rod (50) is rotatably connected to a flip seat (54), the flip seat (54) is fixedly connected to a rotating handle (52), and one side of the rectangular tube (55) is provided with a first elastic buckle (53) for fixing the rotating handle (52).

4. A wing shovel with controllable opening and closing angle according to claim 1, characterized in that: The first lifting assembly comprises a front-end lifting cylinder (3), the front-end lifting cylinder (3) is rotatably connected to the upper end of the cylinder connecting plate (2), the output end of the front-end lifting cylinder (3) is rotatably connected to a fourth front-end connecting rod (27), and the lower end of the fourth front-end connecting rod (27) is rotatably connected to the first front-end connecting rod (4).

5. The side wing shovel with controllable opening and closing angle according to claim 1, characterized in that: The second lifting assembly comprises a rear end connecting rod (17), the rear end connecting rod (17) is rotatably connected to the lower end of the L-shaped bracket (18), a third rotating seat (15) is provided at one end of the rear end connecting rod (17) away from the L-shaped bracket (18), a special-shaped transfer seat (14) is provided inside the third rotating seat (15), and the special-shaped transfer seat (14) is installed on the main longitudinal beam (6), the end of the upper end cross bar of the L-shaped bracket (18) is rotatably connected to the rear end lifting cylinder (23), and the main longitudinal beam (6) is close to the rear end connecting rod (17). A sixth rotating seat (25) is fixedly connected to the position near the special-shaped adapter seat (14); the output end of the rear-end lifting cylinder (23) is placed in the sixth rotating seat (25); a rotating pin (26) is provided in each of the third rotating seat (15) and the sixth rotating seat (25); the rotating pin (26) is respectively inserted into the special-shaped adapter seat (14) and the output end of the rear-end lifting cylinder (23); anti-dropping retaining springs are provided at both ends of the rotating pin (26); and a rear-end supporting foot (16) is also provided in the middle of the rear-end connecting rod (17).

6. A wing shovel with controllable opening and closing angle according to claim 5, characterized in that: A foot plate is installed at the lower end of the rear end supporting foot (16), and both ends of the foot plate are in a raised shape.

7. The side wing shovel with controllable opening and closing angle according to claim 1, characterized in that: The adjustment assembly comprises a second rotating seat (13), the second rotating seat (13) being mounted on an end of the main longitudinal beam (6) away from the fourth rotating seat (22), a buffer (12) being rotatably connected to the second rotating seat (13), a swinging oil cylinder (11) being mounted on the buffer (12), a first rotating seat (7) being mounted on the connecting back plate (10), and the swinging oil cylinder (11) being rotatably connected to the first rotating seat (7).

8. The side wing shovel with controllable opening and closing angle according to claim 1, characterized in that: The shovel plate support (9) includes a hexagonal hollow column (94), the hexagonal hollow column (94) is fixedly connected to the side shovel plate (8), a hollow telescopic column (97) is slidably connected inside the hexagonal hollow column (94), a foot plate (93) is fixedly connected to the lower end of the hollow telescopic column (97), a hexagonal slider (96) is fixedly connected to the upper end of the hollow telescopic column (97), a sliding cavity matching the hexagonal slider (96) is opened inside the hexagonal hollow column (94), and an adjustment mechanism for adjusting the extension length of the hollow telescopic column (97) is provided at the upper end of the hexagonal hollow column (94).

9. A wing shovel with controllable opening and closing angle according to claim 8, characterized in that: The adjustment mechanism comprises a second threaded rod (95), the second threaded rod (95) is rotatably connected to the top of the hexagonal hollow column (94), the second threaded rod (95) is threadedly connected to the hexagonal slider (96), the upper end of the second threaded rod (95) is rotatably connected to the crank (91), and one side of the hexagonal hollow column (94) is also fixedly connected to a second elastic buckle (92) for fixing the crank (91).

10. The side wing shovel with controllable opening and closing angle according to claim 1, characterized in that: A plurality of shovel plate guide supports (28) are installed on one side of the connecting back plate (10) close to the main longitudinal beam (6), and the edge of one end of the shovel plate guide support (28) close to the main longitudinal beam (6) is in a raised shape.

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