Bearing type forestry sprayer structure

Abstract

The utility model discloses a bearing type forestry sprayer structure which comprises a base, the top of the base is fixedly connected with a control frame, the top of the control frame is provided with an ejector fixing mechanism, the base comprises a bottom plate, the four edges of the bottom of the bottom plate are fixedly connected with universal wheels respectively, and the universal wheels are arranged on the bottom plate. A water storage tank is fixedly connected to the rear side of the top of the bottom plate, a water pipe is fixedly connected to the rear side of the water storage tank, the control frame comprises four vertical rods, and the bottoms of the four vertical rods are fixedly connected to the four edges of the side, away from the water storage tank, of the top of the bottom plate correspondingly. According to the sprayer, rapid replacement of the sprayer is achieved, the replacement process of the sprayer is simpler, more convenient and faster through the design, the working efficiency is greatly improved, by arranging fixing devices such as the clamping plate and the clamping plate sliding block, the stability of the sprayer body in the working process is ensured, and displacement caused by vibration or impact is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of forestry sprayers, in particular to a load-bearing forestry sprayer structure. Background Art

[0002] A forestry sprayer is a piece of mechanical equipment specifically used for spraying pesticides, fertilizers or water on large areas of vegetation such as forests, orchards and gardens. It is usually equipped with a high-pressure pump and a nozzle, which can evenly spray the liquid into the tree canopy to prevent and control pests and diseases and promote plant growth. The design of forestry sprayers takes into account their use in complex terrain and different climatic conditions, so they usually have good adaptability and durability.

[0003] According to patent document: CN219961775U, a load-carrying forestry sprayer is disclosed, which relates to the technical field of forestry sprayers and includes a base, the top surface of the base is fixedly connected to a support seat, the inner wall of the support seat is movably connected to a water tank, one side outer wall of the support seat is hinged with a fixing ring, the other side outer wall of the support seat is fixedly connected to a fixing block, one side outer wall of the fixing block is provided with a slot, one end of the fixing ring is fixedly connected to a connecting block, and the outer wall of the connecting block is movably inserted into the slot. The utility model drives the insertion rod into the cavity by pulling the pull rod and squeezing the spring 1 at the same time. At this time, the connecting block at one end of the fixing ring is inserted into the slot, and the pull rod is released. The thrust of the spring 1 pushes the insertion rod into the fixing slot, thereby completing the installation and fixation of the water tank, facilitating the installation and removal of the water tank, and thus facilitating the cleaning of the water tank to avoid residual liquid medicine inside that affects the effect of the liquid medicine when it is used next time.

[0004] Traditional forestry sprayers are typically mounted on a tractor or small vehicle. While this design improves operational efficiency, the nozzles are typically welded to the device, making them difficult to quickly replace or adjust. Furthermore, the up and down movement often requires manual operation by staff, which is cumbersome. Utility Model Content

[0005] The present invention aims to provide a load-bearing forestry sprayer structure to address the problem, as mentioned in the background art, that conventional forestry sprayers are generally mounted on tractors or small vehicles. While this design improves operational efficiency, the nozzles are typically welded to the device, making them inconvenient to quickly replace and adjust. Furthermore, manual operation of the nozzles is often required, which is quite cumbersome.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a load-bearing forestry sprayer structure, comprising a base, the top of which is fixedly connected to a control frame, and the top of which is provided with a sprayer fixing mechanism;

[0007] The base includes a bottom plate, four sides of the bottom of the bottom plate are fixedly connected with universal wheels, the top rear side of the bottom plate is fixedly connected with a water tank, and the rear side of the water tank is fixedly connected with a water pipe.

[0008] Preferably, the control frame includes four vertical poles, the bottoms of the four vertical poles are respectively fixedly connected to the four sides of the top of the base plate away from the water tank side, the tops of the four vertical poles are fixedly connected with a placement plate, and the inner sides of the two rear vertical poles are provided with vertical pole sliding grooves.

[0009] Preferably, the left and right sides of the rear inner wall of the placement plate are respectively slidably connected with sliding rods, the bottoms of the two sliding rods extend to the bottom of the placement plate and the outer bottoms are fixedly connected with sliders, the outer walls of the two sliders are respectively slidably connected to the inside of the vertical rod slide grooves opened on the inner sides of the two rear vertical rods, and the tops of the two sliding rods extend to the top of the placement plate.

[0010] Preferably, the top of the placement plate is fixedly connected to the left and right sides of the side away from the two sliding rods, and the front bottoms of the two transmission vertical plates are fixedly connected to the motor placement bins, the inner walls of the two motor placement bins are fixedly connected to the motors, the output ends of the two motors are fixedly connected to the screw rods, the outer walls of the two screw rods are threadedly connected to the transmission blocks, and the front sides of the two transmission blocks are rotatably connected to the rotating rods.

[0011] Preferably, the top of the placement plate is fixedly connected to the left and right sides of one side away from the two transmission vertical plates with a rotating rod stand respectively, the top inner walls of the two rotating rod stands are rotatably connected to one side of the outer wall of the rotating rod, the bottom front sides of the two rotating rods are rotatably connected to the second rotating rod, and the two second rotating rods are rotatably connected to the front side of the rotating rod stand on one side away from the rotating rod.

[0012] The lockhole that is formed on the two ends of two chute is formed, and the lockhole that is formed on the two chute is formed on the upper surface of the second chute, and the lockhole that is formed on the second chute is formed.

[0013] Preferably, the fixed disk includes a fixed disk shell, a circular groove is opened in the middle of the fixed disk shell, a slide groove is opened in the annular array on the rear side of the fixed disk shell and extends to the front side, and a push-pull rod groove is opened in the annular array on the outer wall of the fixed disk shell and extends to the inner wall of the slide groove. The inner wall of the circular groove opened by the fixed disk shell is movably connected to the outer wall of the injector body, and the inner walls of multiple push-pull rod grooves are slidably connected to push-pull slide bars, the inner sides of multiple push-pull slide bars extend to the inner wall of the slide groove and are rotatably connected to the third rotating rod, the outer sides of multiple push-pull slide bars extend to the outer wall of the fixed disk shell and are fixedly connected to push-pull blocks, and multiple push-pull blocks The side away from the push-pull slide rod extends to one side of the fixed disk shell and is fixedly connected to a push-pull cross rod on the inner side, and multiple push-pull cross rods are fixedly connected to the inner sides of the plywood, and multiple plywoods are fixedly connected to the side of the fixed disk shell close to the fixed disk shell, and the outer walls of multiple plywood slides are slidably connected to the inner wall of the slide groove, and multiple third rotating rods are rotatably connected to the side of the push-pull slide rod, and the inner sides of multiple hinge blocks are fixedly connected to control shafts, and the inner wall of the control shaft is movably connected to the outer wall of the injector body on one side of the inner wall of the fixed tube shell, wherein one side of two of the hinge blocks is fixedly connected to one end of the fixed tube shell.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The water tank and water pipe ensure that the sprayer can carry enough liquid medicine and can spray at a long distance as needed, thus improving the spraying efficiency and operating range;

[0016] 2. By providing a control frame and an injector fixing mechanism, the sprayer's injection device is stably fixed on the control frame, ensuring the accuracy and uniformity of the spray;

[0017] 3. By setting up the transmission vertical plate and motor placement compartment, as well as the transmission mechanism such as the motor and the screw rod, the automatic control of the sprayer is realized, which reduces the labor intensity of the operator;

[0018] 4. The spraying angle and direction of the sprayer can be flexibly adjusted to meet different operation requirements by providing a rotating rod and a rotating rod stand, as well as a second rotating rod and a fixed plate.

[0019] 5. The hydraulic system is equipped with a hydraulic push-pull rod and a push-pull slide rod, which enables the rapid replacement of the sprayer. This design makes the replacement process of the sprayer simpler and faster, greatly improving work efficiency.

[0020] 6. The fixing devices such as the splint and splint slider are provided to ensure the stability of the sprayer body during operation and prevent displacement caused by vibration or impact;

[0021] 7. By providing connecting parts such as control shaft and hinge block, the various parts of the sprayer can be closely matched, thereby improving the stability and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional separation structure of the base and the control frame of the utility model;

[0024] Figure 3 This is a schematic diagram of a three-dimensional cross-sectional structure of the control frame of the present invention;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the injector fixing mechanism of the present utility model;

[0026] Figure 5 This is a schematic diagram of a three-dimensional cross-sectional structure of the injector fixing mechanism of the present utility model;

[0027] Figure 6 This is a schematic diagram of the three-dimensional separation structure of the fixed disk of the utility model.

[0028] In the figure: 1. Base; 11. Bottom plate; 12. Universal wheel; 13. Water tank; 14. Water pipe; 2. Control frame; 21. Vertical pole; 22. Placement plate; 23. Vertical pole slide; 24. Slide bar; 25. Slider; 26. Transmission vertical plate; 27. Motor placement compartment; 28. Motor; 29. Screw; 210. Transmission block; 211. Rotating rod; 212. Rotating rod stand; 213. Second rotating rod; 3. Injector fixing mechanism; 31. Fixed bottom Block; 32. Fixed vertical plate; 33. Fixed ring; 34. Fixed tube housing; 35. Injector body; 36. Fixed disk; 361. Fixed disk housing; 362. Circular groove; 363. Slide groove; 364. Push-pull rod groove; 365. Control shaft; 366. Articulated block; 367. Third rotating rod; 368. Push-pull slide rod; 369. Push-pull block; 3610. Push-pull cross bar; 3611. Clamp; 3612. Clamp slider; 37. Hydraulic push-pull rod. DETAILED DESCRIPTION

[0029] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1The utility model provides a technical solution: a load-bearing forestry sprayer structure, comprising a base 1, a control frame 2 is fixedly connected to the top of the base 1, and an injector fixing mechanism 3 is provided on the top of the control frame 2.

[0031] See also Figure 1-4 The base 1 includes a bottom plate 11, the four bottom sides of the bottom plate 11 are respectively fixedly connected to universal wheels 12, the top rear side of the bottom plate 11 is fixedly connected to a water tank 13, and the rear side of the water tank 13 is fixedly connected to a water pipe 14, the control frame 2 includes four vertical rods 21, the bottoms of the four vertical rods 21 are respectively fixedly connected to the four sides of the top of the bottom plate 11 away from the water tank 13, the tops of the four vertical rods 21 are fixedly connected to a placement plate 22, the inner sides of the two rear vertical rods 21 are provided with vertical rod slide grooves 23, the left and right sides of the rear inner wall of the placement plate 22 are respectively slidably connected with slide rods 24, the bottoms of the two slide rods 24 extend to the bottom of the placement plate 22 and the outer bottoms are fixedly connected to sliders 25, the outer walls of the two sliders 25 are respectively slidably connected to the vertical rod slide grooves 23 opened on the inner sides of the two rear vertical rods 21, the tops of the two slide rods 24 extend to the top of the placement plate 22, and the placement plate 22 The left and right sides of the top side away from the two sliding rods 24 are respectively fixedly connected to the transmission vertical plates 26, the front bottom sides of the two transmission vertical plates 26 are fixedly connected to the motor placement bin 27, the inner walls of the two motor placement bins 27 are fixedly connected to the motors 28, the output ends of the two motors 28 are fixedly connected to the screw rods 29, the outer walls of the two screw rods 29 are threadedly connected to the transmission blocks 210, the front sides of the two transmission blocks 210 are rotatably connected to the rotating rod 211, the left and right sides of the top side of the placement plate 22 away from the two transmission vertical plates 26 are respectively fixedly connected to the rotating rod stand 212, the top inner walls of the two rotating rod stand 212 are rotatably connected to one side of the outer wall of the rotating rod 211, the bottom front sides of the two rotating rods 211 are rotatably connected to the second rotating rod 213, and the two second rotating rods 213 are rotatably connected to the front side of the rotating rod stand 212 on the side away from the rotating rod 211;

[0032] When forest irrigation is needed, the base plate 11 moves to the designated position through the four universal wheels 12 at the bottom. The operator opens the cover of the water tank 13 and adds an appropriate amount of water and pesticide mixture into it. Then, the motor 28 on the control frame 2 is started, and the motor 28 drives the screw rod 29 to rotate. The rotational motion of the screw rod 29 is converted into linear motion through the transmission block 210. The transmission block 210 moves up and down on the outer wall of the screw rod 29 while driving the rotating rod 211 to rotate, so that the injector fixing mechanism 3 swings up and down on the inner wall of the rotating rod 211 to achieve the purpose of evenly spraying the water and pesticide mixture.

[0033] See also Figure 5-6The ejector fixing mechanism 3 includes two fixed bottom blocks 31, and the front and rear sides of the tops of the two fixed bottom blocks 31 are fixedly connected to fixed vertical plates 32. The inner sides of the two sets of fixed vertical plates 32 are fixedly connected to fixed rings 33. The inner walls of the two fixed rings 33 are fixedly connected to fixed pipe shells 34. The left and right sides of the front fixed bottom block 31 are respectively rotatably connected to the front sides of the inner sides of the two rotating rods 211, and the left and right sides of the bottom of the rear fixed bottom block 31 are respectively rotatably connected to the tops of the two sliding rods 24. The front and rear ends of the fixed pipe shell 34 are respectively fixedly connected to fixed plates 36. The opposite surfaces of the two fixed pipe shells 34 are fixed to the fixed pipe shell 3 4 are fixedly connected to the inner wall of the two fixed plates 36, respectively, with hydraulic push-pull rods 37. The two fixed plates 36 are movably connected to the inner wall of the fixed pipe housing 34 with the ejector body 35. The front and rear ends of the ejector body 35 extend to the front and rear outer walls of the two fixed plates 36, respectively. The rear end of the ejector body 35 is fixedly connected to the end of the water pipe 14 away from the water tank 13. The fixed plate 36 includes a fixed plate housing 361. A circular groove 362 is opened in the middle of the fixed plate housing 361. A sliding groove 363 is opened in an annular array on the rear side of the fixed plate housing 361 and extends to the front side. A push rod 363 is opened in an annular array on the outer wall of the fixed plate housing 361 and extends to the inner wall of the sliding groove 363. The inner wall of the pull rod groove 364 and the circular groove 362 opened in the fixed disk housing 361 is movably connected to the outer wall of the injector body 35. The inner walls of the multiple push-pull rod grooves 364 are slidably connected with push-pull slide rods 368. The inner sides of the multiple push-pull slide rods 368 extend to the inner wall of the slide groove 363 and are rotatably connected to the third rotating rod 367. The outer sides of the multiple push-pull slide rods 368 extend to the outer wall of the fixed disk housing 361 and are fixedly connected to the push-pull blocks 369. The side of the multiple push-pull blocks 369 away from the push-pull slide rod 368 extends to one side of the fixed disk housing 361 and the inner sides are fixedly connected to the push-pull cross bar 3610. 610 are all fixedly connected to the inner side of the clamping plate 3611, and the side of the multiple clamping plates 3611 close to the fixed disk housing 361 is fixedly connected to the clamping plate slider 3612, and the outer walls of the multiple clamping plate sliders 3612 are all slidably connected to the inner wall of the slide groove 363, and the side of the multiple third rotating rods 367 away from the push-pull slide rod 368 is rotatably connected to the hinge block 366, and the inner sides of the multiple hinge blocks 366 are fixedly connected to the control shaft 365. The inner wall of the control shaft 365 is movably connected to the outer wall of the injector body 35 on one side of the inner wall of the fixed tube housing 34, wherein one side of two hinge blocks 366 are fixedly connected to one end of the fixed tube housing 34;

[0034] When the ejector body 35 needs to be replaced, the two hydraulic push-pull rods 37 are first started to move the two control shafts 365 outward. When the two control shafts 365 move outward, the two sets of hinge blocks 366 on the outer wall pull the third rotating rod 367 to rotate. The third rotating rod 367 rotates and pulls the push-pull slide bar 368 to slide outward along the push-pull rod groove 364 and the inner wall of the slide groove 363, thereby pulling the push-pull block 369 to move outward, and then pushing the splint 3611 and the splint slide block 3612 outward along the slide groove 363. The ejector body 35 is moved sideways, and as the clamping plate slider 3612 moves, the clamping plate 3611 will be loosened from the outer wall of the ejector body 35, so that the ejector body 35 can be freely pulled out of the fixed tube housing 34. After the replacement is completed, the hydraulic push-pull rod 37 is operated in reverse, and the control shaft 365 drives the third rotating rod 367 and the push-pull slide rod 368 to return to their original positions. The clamping plate 3611 then clamps the new ejector body 35 to ensure that it is fixed in the appropriate position. The entire replacement process is simple and quick, which greatly improves the maintenance efficiency of the equipment.

[0035] Working principle: When the device is used, when forest irrigation is required, the base plate 11 moves to a designated position via the four universal wheels 12 at the bottom. The operator opens the lid of the water tank 13 and adds an appropriate amount of water and pesticide mixture thereto. Subsequently, the motor 28 on the control frame 2 is started, and the motor 28 drives the screw rod 29 to rotate. The rotational motion of the screw rod 29 is converted into linear motion by the transmission block 210. The transmission block 210 moves up and down on the outer wall of the screw rod 29 while driving the rotating rod 211 to rotate, thereby causing the injector fixing mechanism 3 to swing up and down on the inner wall of the rotating rod 211 to achieve the purpose of evenly spraying the water and pesticide mixture.

[0036] When the ejector body 35 needs to be replaced, the two hydraulic push-pull rods 37 are first started to move the two control shafts 365 outward. When the two control shafts 365 move outward, the two sets of hinge blocks 366 on the outer wall pull the third rotating rod 367 to rotate. The third rotating rod 367 rotates and pulls the push-pull slide bar 368 to slide outward along the push-pull rod groove 364 and the inner wall of the slide groove 363, thereby pulling the push-pull block 369 to move outward, and then pushing the splint 3611 and the splint slide block 3612 outward along the slide groove 363. The ejector body 35 is moved sideways, and as the clamping plate slider 3612 moves, the clamping plate 3611 will be loosened from the outer wall of the ejector body 35, so that the ejector body 35 can be freely pulled out of the fixed tube housing 34. After the replacement is completed, the hydraulic push-pull rod 37 is operated in reverse, and the control shaft 365 drives the third rotating rod 367 and the push-pull slide rod 368 to return to their original positions. The clamping plate 3611 then clamps the new ejector body 35 to ensure that it is fixed in the appropriate position. The entire replacement process is simple and quick, which greatly improves the maintenance efficiency of the equipment.

[0037] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A load-bearing forestry sprayer structure, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a control frame (2), and the top of the control frame (2) is provided with an ejector fixing mechanism (3); The base (1) comprises a bottom plate (11), the four sides of the bottom of the bottom plate (11) are respectively fixedly connected to universal wheels (12), the top rear side of the bottom plate (11) is fixedly connected to a water tank (13), and the rear side of the water tank (13) is fixedly connected to a water pipe (14); The control frame (2) includes four vertical poles (21), the bottoms of the four vertical poles (21) are respectively fixedly connected to the four sides of the top of the bottom plate (11) away from the water tank (13), the tops of the four vertical poles (21) are fixedly connected to a placement plate (22), and the inner sides of the two vertical poles (21) on the rear side are each provided with a vertical pole sliding groove (23); The injector fixing mechanism (3) comprises two fixed bottom blocks (31), the front and rear sides of the tops of the two fixed bottom blocks (31) are fixedly connected to fixed vertical plates (32), the inner sides of the two groups of fixed vertical plates (32) are fixedly connected to fixed rings (33), the inner walls of the two fixed rings (33) are fixedly connected to fixed pipe shells (34), the left and right sides of the front fixed bottom block (31) are respectively rotatably connected to the front sides of the inner sides of the two rotating rods (211), and the left and right sides of the bottom of the rear fixed bottom block (31) are respectively rotatably connected to the tops of the two sliding rods (24). The front and rear ends of the fixed pipe housing (34) are respectively fixedly connected to fixed plates (36); the opposite surfaces of the two fixed pipe housings (34) are respectively fixedly connected to hydraulic push-pull rods (37) on both sides of the inner wall of the fixed pipe housing (34); the two fixed plates (36) and the inner wall of the fixed pipe housing (34) are movably connected to an ejector body (35); the front and rear ends of the ejector body (35) respectively extend to the front and rear outer walls of the two fixed plates (36); the rear end of the ejector body (35) is fixedly connected to one end of the water pipe (14) away from the water tank (13).

2. The load-bearing forestry sprayer structure according to claim 1, characterized in that: The left and right sides of the rear inner wall of the placement plate (22) are respectively slidably connected with sliding rods (24), the bottoms of the two sliding rods (24) extend to the bottom of the placement plate (22) and the outer bottoms are fixedly connected with sliders (25), the outer walls of the two sliders (25) are respectively slidably connected to the inside of the vertical rod sliding grooves (23) opened on the inner sides of the two rear vertical rods (21), and the tops of the two sliding rods (24) extend to the top of the placement plate (22).

3. The load-bearing forestry sprayer structure according to claim 1, characterized in that: The top of the placement plate (22) is fixedly connected to the left and right sides of the side away from the two slide bars (24) respectively with a transmission vertical plate (26), the front bottoms of the two transmission vertical plates (26) are fixedly connected to the motor placement bin (27), the inner walls of the two motor placement bins (27) are fixedly connected to the motor (28), the output ends of the two motors (28) are fixedly connected to the screw rods (29), the outer walls of the two screw rods (29) are threadedly connected to the transmission blocks (210), and the front sides of the two transmission blocks (210) are rotatably connected to the rotating rods (211).

4. The load-bearing forestry sprayer structure according to claim 1, characterized in that: The left and right sides of the top of the placement plate (22) away from the two transmission vertical plates (26) are respectively fixedly connected with a rotating rod stand (212), the top inner walls of the two rotating rod stand (212) are both rotatably connected to one side of the outer wall of the rotating rod (211), the bottom front sides of the two rotating rods (211) are both rotatably connected to a second rotating rod (213), and the sides of the two second rotating rods (213) away from the rotating rod (211) are both rotatably connected to the front side of the rotating rod stand (212).

5. The load-bearing forestry sprayer structure according to claim 1, characterized in that: The fixed disk (36) includes a fixed disk shell (361), a circular groove (362) is opened in the middle of the fixed disk shell (361), a sliding groove (363) is opened in the annular array on the rear side of the fixed disk shell (361) and extends to the front side, and a push-pull rod groove (364) is opened in the annular array on the outer wall of the fixed disk shell (361) and extends to the inner wall of the sliding groove (363). The inner wall of the circular groove (362) opened in the fixed disk shell (361) is movably connected. The outer wall of the ejector body (35) is connected to the inner wall of the plurality of push-pull rod grooves (364), and the inner walls of the plurality of push-pull rod grooves (364) are all slidably connected to push-pull slide rods (368). The inner sides of the plurality of push-pull slide rods (368) extend to the inner wall of the slide groove (363) and are all rotatably connected to the third rotating rod (367). The outer sides of the plurality of push-pull slide rods (368) extend to the outer wall of the fixed disk housing (361) and are all fixedly connected to push-pull blocks (369). The distal ends of the plurality of push-pull blocks (369) are connected to the outer wall of the fixed disk housing (361). The side extending from the push-pull slide bar (368) to the side of the fixed disk housing (361) and the inner side is fixedly connected with a push-pull cross bar (3610), the inner sides of the plurality of push-pull cross bars (3610) are fixedly connected with a clamping plate (3611), the side of the plurality of clamping plates (3611) close to the fixed disk housing (361) are fixedly connected with a clamping plate slider (3612), and the outer walls of the plurality of clamping plate sliders (3612) are slidably connected to the sliding groove (363). The inner wall of the plurality of third rotating rods (367) is rotatably connected to a hinge block (366) on one side away from the push-pull slide rod (368), and the inner sides of the plurality of hinge blocks (366) are fixedly connected to a control shaft (365), and the inner wall of the control shaft (365) is movably connected to the outer wall of the ejector body (35) on one side of the inner wall of the fixed tube shell (34), wherein one side of two of the hinge blocks (366) is fixedly connected to one end of the fixed tube shell (34).

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