CN215346642U

CN215346642U - Portable pesticide spraying apparatus

Info

Publication number: CN215346642U
Application number: CN202121442967.7U
Authority: CN
Inventors: 谈全慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-31
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a movable pesticide spraying device, and particularly relates to the technical field of pesticide spraying devices. According to the crawler-type agricultural chemical spraying device, the spraying mechanism is arranged, the liquid chemical in the water bucket is pumped out, then the liquid chemical is conducted to the water separator through the liquid pumping pipe and the liquid discharge pipe, and then the liquid chemical reaches the spray head and is sprayed out through the hose at the outer end of the water separator.

Description

Portable pesticide spraying apparatus

Technical Field

The utility model relates to the technical field of pesticide spraying equipment, in particular to movable pesticide spraying equipment.

Background

In the agricultural field, in order to prevent diseases and pests of crops, it is necessary to spray agricultural chemicals to the crops, and the agricultural chemicals are classified into herbicides, insecticides, fungicides, etc. according to their effects, and some of the agricultural chemicals have a regulating effect on the growth of plants, and are called plant regulators, which enable the plants to grow in a direction desired by human beings.

The pesticide is very extensive in the application on agricultural production, need use corresponding spraying apparatus when spraying the pesticide, and traditional spraying apparatus utilizes the manpower to remove, and the aircraft etc. sprays the pesticide, sprays the pesticide and needs enough water yield and evenly apply pesticides, and the aircraft is because of the load problem water yield, does not reach the pesticide that sprays of enough water yield, and the aircraft sprays the pesticide drift seriously moreover, often reaches the effect of ideal. The manpower can not reach enough even spraying pesticide again, and work load is big moreover to can not do in time prevention and cure, if the planting area of crops is great, then the efficiency of spraying is lower, but if use ground equipment to spray, the relief in the field is indefinite, and ground equipment's removal is comparatively inconvenient, and the volume and the weight of current equipment are great simultaneously, and the bearing capacity is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a mobile pesticide spraying apparatus to solve the above-mentioned problems occurring in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a movable pesticide spraying device comprises a crawler, wherein a spraying mechanism is arranged at the top of the crawler;

the spraying mechanism comprises a protective guard, the protective guard is fixedly arranged at the top end of a crawler, a bucket is arranged inside the protective guard, the bucket is arranged at the top end of the crawler, a plunger pump is arranged at the top end of the crawler, the plunger pump is arranged at one side of the protective guard, a liquid suction pipe and a liquid discharge pipe are fixedly arranged on the plunger pump, one end of the liquid suction pipe is fixedly connected with the rear side of the bucket, one end of the liquid discharge pipe is fixedly provided with a water separator, the outer end of the water separator is fixedly provided with a plurality of hoses, one side of the plunger pump is fixedly provided with a metering water suction pump, the metering water suction pump is fixedly provided with a water suction pipe and a water injection pipe, the top of the crawler is provided with a tightening frame, the tightening frame is arranged at the top of the other side of the protective guard, a left stretching arm and a right stretching arm are fixedly arranged at the bottom end inside the tightening frame, one ends of the left stretching arm and the right stretching arm respectively extend to two sides of the tightening frame, and a plurality of spray heads are fixedly arranged at the outer ends of the left stretching arm and the right stretching arm, one end of the hose is fixedly connected with the outer end of the spray head, and the hose and the spray head are in one-to-one correspondence.

Further, the tracked vehicle top is equipped with the workstation, the fixed workstation top of establishing of plunger pump, the workstation bottom end is fixed and is equipped with a plurality of supports, support one end and tracked vehicle top end fixed connection, the tracked vehicle top end is fixed and is equipped with the engine, the engine is established at the support inboardly, the engine is established in the workstation bottom, the engine top is equipped with controller receiving chip, controller receiving chip combines flight control system and manual driving mode, flight control system includes that model aeroplane and model ship ground station combines centimeter level RTK and GPS, digital map biography, intelligence keep away barrier module, no signal stop operation module and unmanned driving control system, manual driving mode includes digital map biography module, no signal stop operation module, digital receiver and transmitter.

Further, an output shaft one end of the engine is fixedly provided with a five-groove belt pulley, the bottom of the engine is provided with a transmission and an oil cylinder distributor, the transmission and the oil cylinder distributor are fixedly arranged at the outer end of the support and the top end of the crawler respectively, the outer end of the five-groove belt pulley is provided with five belts, two of the belts are connected with a belt pulley of the plunger pump, the other two belts are connected with a belt pulley of the transmission, and the last belt is connected with a belt pulley of the oil cylinder distributor.

Further, a medicine stirring device is fixedly arranged on the plunger pump, a communicating pipe is fixedly arranged at the top end of the bucket, an upper bucket cover is sleeved at the top end of the communicating pipe and is in threaded connection with the upper bucket cover, one end of the water injection pipe is fixedly connected with the top end of the upper bucket cover, a digital liquid level measuring instrument, an anhydrous liquid medicine or an overfilling alarm device is arranged inside the bucket, a measuring water meter is arranged on the measuring water suction pump, and a flow measuring controller is fixedly arranged on the water separator.

Furthermore, a stand column is fixedly arranged at the top end of the crawler, the stand column is arranged at the other side of the bucket, an extension frame is arranged inside the stand column, the outer end of the extension frame is in contact with the inner wall of the stand column, one end of the extension frame extends to the top of the stand column and is fixedly connected with the bottom end of the tightening frame, a hydraulic oil cylinder is fixedly arranged at the top end of the crawler, the hydraulic oil cylinder is arranged on the inner sides of the stand column and the extension frame, and one end of the hydraulic oil cylinder is fixedly connected with the bottom end of the tightening frame.

Furthermore, both sides of the tightening frame are fixedly provided with electric push rods, one ends of the two electric push rods are respectively connected with the left stretching arm and the right stretching arm, both sides of the outer end of the bottom of the tightening frame are provided with rotating structures, one side of the tightening frame is fixedly provided with an upper left rotatable tightening wheel and a lower left rotatable tightening wheel, the upper left rotatable tightening wheel is arranged at the top of the lower left rotatable tightening wheel, the outer ends of the upper left rotatable tightening wheel and the lower left rotatable tightening wheel are respectively fixedly provided with an upper left steel wire rope and a lower left steel wire rope, one ends of the upper left steel wire rope and the lower left steel wire rope are respectively wound at the outer ends of the upper left rotatable tightening wheel and the lower left rotatable tightening wheel, the other ends of the upper left steel wire rope and the lower left steel wire rope are fixedly connected with the outer end of the left stretching arm, the other side of the tightening frame is fixedly provided with an upper right rotatable tightening wheel and a lower right rotatable tightening wheel, the upper right rotatable tightening wheel is arranged at the top of the lower right tightening wheel, rotatable tight wheel of dress and the right side is rotatable to be adorned tight wheel outer end down and is fixed respectively and be equipped with wire rope and wire rope under the right side on the right side, wire rope and right side down wire rope one end respectively around establishing rotatable tight wheel of dress and the right side under on the right side and rotatable tight wheel outer end of dress, wire rope and right side down the wire rope other end and right side exhibition arm outer end fixed connection on the right side.

The utility model has the technical effects and advantages that:

1. according to the utility model, the spraying mechanism is arranged to pump out the liquid medicine in the water bucket, then the liquid medicine is conducted to the water separator through the liquid pumping pipe and the liquid discharge pipe, and then the liquid medicine reaches the spray head and is sprayed out through the hose at the outer end of the water separator.

2. According to the utility model, by opening the hydraulic oil cylinder, the hydraulic oil cylinder pushes the extension frame and the tightening frame to move upwards after extension, the extension frame slides in the upright post, the tightening frame drives the left stretching arm, the right stretching arm and the spray head to move upwards integrally after moving upwards, and the height of spraying pesticide is adjusted, so that the agricultural chemical spraying device is suitable for crops with different heights.

3. The vehicle spraying device has the advantages that the liquid level device is mounted in the pesticide barrel in the running process of the vehicle, the liquid level device is free of water pesticide or can give an alarm when the vehicle is full, the water distributor for pesticide spraying adopts the rated flow meter to achieve even spraying, the vehicle adopts the function of cruising and speed setting in the running process, the speed of accurate pesticide spraying and pesticide spraying is uniform and consistent in all directions, and the vehicle is embodied in a digitalized mode so as to be mastered accurately.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a perspective view of the present invention.

Fig. 4 is a perspective view of the post and extender of the present invention.

Fig. 5 is a perspective view of the tightening bracket of the present invention.

The reference signs are: 1. a tracked vehicle; 2. a liquid pumping pipe; 3. the upper left steel wire rope; 4. a column; 5. an extension frame; 6. a tight mounting frame; 7. the upper left can rotate to tighten the wheel; 8. a left arm of the stretcher; 9. a spray head; 10. protecting the fence; 11. a water bucket; 12. a water separator; 13. a hose; 14. a liquid discharge pipe; 15. a work table; 16. an engine; 17. a support; 18. a plunger pump; 19. a hydraulic cylinder; 20. a metering water suction pump; 21. a transmission; 22. a cylinder distributor; 23. a water pumping pipe; 24. a water injection pipe; 25. an upper cover of the bucket; 26. a right arm; 27. an electric push rod; 28. the left lower part can rotate to install the tight wheel; 29. the upper right can rotate the tightening wheel; 30, a tightening wheel can rotate at the lower right part; 31. a left lower wire rope; 32. a right upper wire rope; 33. and a lower right steel wire rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-5 in the specification, the mobile pesticide spraying equipment of the embodiment comprises a crawler 1, wherein a spraying mechanism is arranged on the top of the crawler 1;

the spraying mechanism comprises a protective guard 10, the protective guard 10 is fixedly arranged on the top end of a crawler 1, a bucket 11 is arranged inside the protective guard 10, the bucket 11 is arranged on the top end of the crawler 1, a plunger pump 18 is arranged at the top of the crawler 1, the plunger pump 18 is arranged on one side of the protective guard 10, a liquid pumping pipe 2 and a liquid discharge pipe 14 are fixedly arranged on the plunger pump 18, one end of the liquid pumping pipe 2 is fixedly connected with the rear side of the bucket 11, a water separator 12 is fixedly arranged at one end of the liquid discharge pipe 14, a plurality of hoses 13 are fixedly arranged at the outer end of the water separator 12, a metering water suction pump 20 is fixedly arranged on one side of the plunger pump 18, a water pumping pipe 23 and a water injection pipe 24 are fixedly arranged on the metering water suction pump 20, a tightening frame 6 is arranged at the top of the crawler 1, the tightening frame 6 is arranged at the top of the other side of the protective guard 10, a left expansion arm 8 and a right expansion arm 26 are fixedly arranged at the bottom end inside the tightening frame 6, exhibition arm 8 on a left side and the 26 one end of right side exhibition arm extend to the tight 6 both sides of dress respectively, exhibition arm 8 on a left side and the 26 outer ends of right side exhibition all fixed a plurality of shower nozzles 9 that are equipped with, 13 one end of hose and 9 outer end fixed connection of shower nozzle, 13 hoses and 9 one-to-one of shower nozzle.

The top of tracked vehicle 1 is equipped with workstation 15, plunger pump 18 is fixed to be established on workstation 15 top, the fixed a plurality of supports 17 that are equipped with in workstation 15 bottom, support 17 one end and 1 top fixed connection of tracked vehicle, the fixed engine 16 that is equipped with in tracked vehicle 1 top, engine 16 is established at support 17 inboardly, engine 16 is established in workstation 15 bottom, the engine top is equipped with controller receiving chip, controller receiving chip combines flight control system and manual driving mode, flight control system includes that model aeroplane and model ship ground station combines centimeter level RTK and GPS, digital map biography, intelligent obstacle avoidance module, no signal stop operation module and unmanned control system, the manual driving mode includes digital map biography module, no signal stop operation module, digital receiver and transmitter, carries out remote control through the digitization technique, the position of action can be accurately positioned, and the operation precision is improved.

Five-groove belt pulleys are fixedly arranged at one end of an output shaft of the engine 16, a transmission 21 and an oil cylinder distributor 22 are arranged at the bottom of the engine 16, the transmission 21 and the oil cylinder distributor 22 are fixedly arranged at the outer end of the support 17 and the top end of the crawler 1 respectively, five belts are arranged at the outer ends of the five-groove belt pulleys, two belts are connected with the belt pulley of the plunger pump 18, the other two belts are connected with the belt pulley of the transmission 21, and the last belt is connected with the belt pulley of the oil cylinder distributor 22, so that the engine 16 is utilized to drive the plunger pump 18 to work.

Plunger pump 18 is last to be fixed to be equipped with and to stir the medicine ware, 11 top of cask are fixed to be equipped with communicating pipe, communicating pipe top cover is equipped with cask upper cover 25 and passes through threaded connection with cask

upper cover

25, 24 one ends of water injection pipe and 25 top fixed connection of cask upper cover, and drinking-water pipe 23 connects the liquid medicine of required spraying to this adds the liquid medicine in to

cask

11, 11 inside digital liquid level measuring apparatuss, anhydrous liquid medicine or the overfilling alarm device of being equipped with of cask, be equipped with the measurement water gauge on the measurement suction pump 20, the fixed flow measurement controller that is equipped with on the water knockout drum 12, the dose that the control was sprayed is convenient for.

The implementation scenario is specifically as follows: when spraying pesticide, the engine 16 and the metering water suction pump 20 are turned on, the engine 16 drives the plunger pump 18 to start working through a belt and a belt pulley, liquid medicine in the water bucket 11 is pumped out through the liquid pumping pipe 2, then the liquid medicine enters the liquid discharge pipe 14 through the plunger pump 18 and then enters the water separator 12 through the liquid discharge pipe 14, the outer end of the water separator 12 is fixed with a plurality of hoses 13, and the hoses 13 are correspondingly connected with the spray heads 9 one by one, so that the liquid medicine reaches the spray heads 9 through the hoses 13 and is sprayed out through the spray heads 9, the crawler 1 drives the equipment to integrally move in the spraying process, and the plurality of spray heads 9 are uniformly distributed on the plurality of left spreading arms 8 and the plurality of right spreading arms 26, so that the speed of spraying pesticide is improved, the crawler 1 is suitable for crops planted in a large area, and in addition, compared with the crawler type tire of the crawler type vehicle 1, the crawler type tire can run on the ground with uneven pits in a field, further improved the practicality of equipment, through setting up spraying mechanism, take the liquid medicine in cask 11 out, then conduct to water knockout drum 12 through liquid suction pipe 2 and fluid-discharge tube 14, hose 13 of rethread water knockout drum 12 outer end makes the liquid medicine reach shower nozzle 9 and blowout, in this process, 1 drive arrangement moving as a whole of tracked vehicle, left side exhibition arm 8 and right exhibition arm 26 have improved the coverage when the liquid medicine sprays, finally make the speed that the pesticide sprays can improve, so that be applicable to the crop of planting by a large scale, the obstacle that the topography brought has also been overcome to tracked vehicle's 1 crawler tire, and tracked vehicle's bearing capacity and stability are strong, and is small, combine to fly to control the technique and can carry out the accurate operation.

Referring to the attached drawings 1-5 of the specification, in the mobile pesticide spraying equipment of the embodiment, the top end of the crawler 1 is fixedly provided with the upright post 4, the upright post 4 is arranged on the other side of the water bucket 11, the extension frame 5 is arranged inside the upright post 4, the outer end of the extension frame 5 is in contact with the inner wall of the upright post 4, one end of the extension frame 5 extends to the top of the upright post 4 and is fixedly connected with the bottom end of the tightening frame 6, the top end of the crawler 1 is fixedly provided with the hydraulic oil cylinder 19, the hydraulic oil cylinder 19 is arranged on the inner sides of the upright post 4 and the extension frame 5, and one end of the hydraulic oil cylinder 19 is fixedly connected with the bottom end of the tightening frame 6 so as to control the tightening frame 6 to lift.

The two sides of the tightening frame 6 are fixedly provided with electric push rods 27, one ends of the two electric push rods 27 are respectively connected with the left stretching arm 8 and the right stretching arm 26, the two sides of the outer end of the bottom of the tightening frame 6 are provided with rotating structures, one side of the tightening frame 6 is fixedly provided with a left upper rotatable tightening wheel 7 and a left lower rotatable tightening wheel 28, the left upper rotatable tightening wheel 7 is arranged at the top of the left lower rotatable tightening wheel 28, the outer ends of the left upper rotatable tightening wheel 7 and the left lower rotatable tightening wheel 28 are respectively fixedly provided with a left upper steel wire rope 3 and a left lower steel wire rope 31, one ends of the left upper steel wire rope 3 and the left lower steel wire rope 31 are respectively wound at the outer ends of the left upper rotatable tightening wheel 7 and the left lower rotatable tightening wheel 28, the other ends of the left upper steel wire rope 3 and the left lower steel wire rope 31 are fixedly connected with the outer end of the left stretching arm 8, the other side of the tightening frame 6 is fixedly provided with a right upper rotatable tightening wheel 29 and a right lower rotatable tightening wheel 30, rotatable tight wheel of dress 29 is established at rotatable tight wheel 30 top of dress under the right side in the upper right side, rotatable tight wheel of dress 29 and the right side down 30 outer ends of dress are fixed respectively and are equipped with wire rope 32 on the right side and wire rope 33 under the right side, wire rope 32 and the right side down wire rope 33 one end respectively around rotatable tight wheel of dress 29 on the right side and the right side down 30 outer ends of dress, wire rope 32 on the right side and the right side down the wire rope 33 other end and right exhibition arm 26 outer end fixed connection consolidate the two with this, electric putter 27 can control left exhibition arm 8 and right exhibition arm 26 and contract.

The implementation scenario is specifically as follows: because the length of left exhibition arm 8 and right exhibition arm 26 is longer, in order to make the both ends of left exhibition arm 8 more stable, electric putter 27's flexible steerable left exhibition arm 8 and the flexible of right exhibition arm 26, adjust the scope of spraying with this, through left side last wire rope 3 and tight wheel 7 connection left exhibition arm 8 and right exhibition arm 26 of dress, reinforce the two with this, simultaneously at the in-process that sprays the medicine, hydraulic cylinder 19 can be opened, promote behind the 19 extension of hydraulic cylinder 5 and the tight 6 rebound of dress, extension frame 5 slides in 4 insides of stand, the tight 6 back that shifts up of dress drives left exhibition arm 8, right exhibition arm 26 and shower nozzle 9 move up on the whole, adjust the height that sprays the pesticide, so that be applicable to the crops of high difference.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the utility model can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. A portable pesticide spraying apparatus, includes tracked vehicle (1), its characterized in that: the top of the tracked vehicle (1) is provided with a spraying mechanism;

the spraying mechanism comprises a protective guard (10), the protective guard (10) is fixedly arranged on the top end of a crawler (1), a bucket (11) is arranged inside the protective guard (10), the bucket (11) is arranged on the top end of the crawler (1), a plunger pump (18) is arranged at the top end of the crawler (1), the plunger pump (18) is arranged on one side of the protective guard (10), a liquid pumping pipe (2) and a liquid discharge pipe (14) are fixedly arranged on the plunger pump (18), one end of the liquid pumping pipe (2) is fixedly connected with the rear side of the bucket (11), a water distributor (12) is fixedly arranged at one end of the liquid discharge pipe (14), a plurality of hoses (13) are fixedly arranged at the outer end of the water distributor (12), a metering water suction pump (20) is fixedly arranged on one side of the plunger pump (18), a water pumping pipe (23) and a water injection pipe (24) are fixedly arranged on the metering water suction pump (20), a tightening frame (6) is arranged at the top end of the crawler (1), the opposite side top in rail guard (10) is established in tight frame (6) of dress, the tight frame (6) of dress inside bottom mounting is equipped with left exhibition arm (8) and right exhibition arm (26), left side exhibition arm (8) and right exhibition arm (26) one end extend to the tight frame (6) both sides of dress respectively, it all fixes and is equipped with a plurality of shower nozzles (9) to exhibition arm (8) and right exhibition arm (26) outer end on a left side, hose (13) one end and shower nozzle (9) outer end fixed connection, hose (13) and shower nozzle (9) one-to-one.

2. The mobile pesticide spraying apparatus as recited in claim 1, wherein: tracked vehicle (1) top is equipped with workstation (15), fixed the establishing on workstation (15) top of plunger pump (18), workstation (15) bottom mounting is equipped with a plurality of supports (17), support (17) one end and tracked vehicle (1) top fixed connection, tracked vehicle (1) top is fixed and is equipped with engine (16), engine (16) are established at support (17) inboardly, establish in workstation (15) bottom engine (16), the engine top is equipped with controller receiving chip, controller receiving chip combines flight control system and manual driving mode, flight control system includes that model ground station combines centimetre level RTK and GPS, digital map biography, intelligence keep away barrier module, no signal stop operation module and unmanned control system, manual driving mode includes that digital map passes module, no signal stop operation module, A digital receiver and a transmitter.

3. The mobile pesticide spraying apparatus as recited in claim 2, wherein: the fixed five groove belt pulleys that are equipped with of output shaft one end of engine (16), the bottom of engine (16) is equipped with derailleur (21) and hydro-cylinder distributor (22), derailleur (21) and hydro-cylinder distributor (22) are fixed respectively and are established in support (17) outer end and tracked vehicle (1) top, five groove belt pulley outer ends are equipped with five belts, two of them the belt is connected with the belt pulley of plunger pump (18), two other the belt is connected with the belt pulley of derailleur (21), the last belt is connected with the belt pulley of hydro-cylinder distributor (22).

4. The mobile pesticide spraying apparatus as recited in claim 1, wherein: plunger pump (18) is gone up to be fixed and is equipped with and stirs the medicine ware, cask (11) top is fixed and is equipped with communicating pipe, communicating pipe top cover be equipped with cask upper cover (25) and pass through threaded connection with cask upper cover (25), water injection pipe (24) one end and cask upper cover (25) top fixed connection, cask (11) inside is equipped with digital liquid level measuring apparatu, anhydrous liquid medicine or crosses full alarm device, be equipped with the measurement water gauge on measurement suction pump (20), the fixed flow measurement controller that is equipped with on water knockout drum (12).

5. The mobile pesticide spraying apparatus as recited in claim 1, wherein: fixed stand (4) that is equipped with in tracked vehicle (1) top, establish in cask (11) opposite side stand (4), stand (4) inside is equipped with extension frame (5), extension frame (5) outer end contacts with stand (4) inner wall, extension frame (5) one end extend to stand (4) top and with adorn tight frame (6) bottom fixed connection, tracked vehicle (1) top is fixed and is equipped with hydraulic cylinder (19), hydraulic cylinder (19) are established at stand (4) and extension frame (5) inboard, hydraulic cylinder (19) one end and adorn tight frame (6) bottom fixed connection.

6. The mobile pesticide spraying apparatus as recited in claim 1, wherein: the two sides of the tightening frame (6) are fixedly provided with electric push rods (27), one ends of the two electric push rods (27) are respectively connected with the left stretching arm (8) and the right stretching arm (26), the two sides of the outer end of the bottom of the tightening frame (6) are provided with rotating structures, one side of the tightening frame (6) is fixedly provided with an upper left rotatable tightening wheel (7) and a lower left rotatable tightening wheel (28), the upper left rotatable tightening wheel (7) is arranged at the top of the lower left rotatable tightening wheel (28), the upper left rotatable tightening wheel (7) and the outer end of the lower left rotatable tightening wheel (28) are respectively fixedly provided with an upper left steel wire rope (3) and a lower left steel wire rope (31), one ends of the upper left steel wire rope (3) and the lower left steel wire rope (31) are respectively wound on the upper left rotatable tightening wheel (7) and the lower left rotatable tightening wheel (28), the other ends of the upper left steel wire rope (3) and the lower left steel wire rope (31) are fixedly connected with the outer end of the left stretching arm (8), the tight frame of dress (6) opposite side is fixed to be equipped with rotatable dress tight pulley (29) in the upper right and rotatable dress tight pulley (30) under the right side, rotatable dress tight pulley (29) in the upper right is established at rotatable dress tight pulley (30) top under the right side, rotatable dress tight pulley (30) outer end is fixed respectively under upper right wire rope (32) and the right side wire rope (33) in the upper right, wire rope (32) in the upper right and wire rope (33) one end is around rotatable dress tight pulley (29) in the upper right and rotatable dress tight pulley (30) outer end under the right side respectively under upper right and the right side, wire rope (33) other end and right exhibition arm (26) outer end fixed connection under upper right wire rope (32) and the right side.