CN108308149B

CN108308149B - Traction air-assisted sprayer

Info

Publication number: CN108308149B
Application number: CN201810069858.1A
Authority: CN
Inventors: 方利敏
Original assignee: Taizhou Kaifeng Plastic & Steel Co ltd
Current assignee: Taizhou Kaifeng Plastic & Steel Co ltd
Priority date: 2018-01-24
Filing date: 2018-01-24
Publication date: 2020-12-08
Anticipated expiration: 2038-01-24
Also published as: CN108308149A

Abstract

The invention discloses a traction air-assisted sprayer, which is characterized by comprising a spraying system, wherein the spraying system comprises a blowing device, a medicine box, a liquid pump, a spraying pipe and a spray head arranged on the side wall of the spraying pipe, the blowing device comprises a mounting cover, a motor and a fan blade connected with the motor, an air inlet and an air outlet are formed in the mounting cover, the spraying system also comprises a walking system, the walking system comprises a frame, a plurality of wheels rotationally connected to the frame and a traction mechanism arranged on the frame, the traction mechanism comprises a hinged seat and a pull rod hinged to the hinged seat, the pull rod comprises a hinged shaft hinged to the hinged seat and a driving rod fixedly connected to the side wall of the hinged shaft, in the use process, the motor drives the fan blade to rotate, so that air enters from the air inlet and is discharged from the air outlet, and the air discharged from the air outlet plays a role, the liquid medicine can be sprayed to a farther position, and the spraying effect of the sprayer is greatly improved.

Description

Traction air-assisted sprayer

Technical Field

The invention relates to the technical field of spraying equipment, in particular to a traction air-assisted sprayer.

Background

The air-assisted sprayer is a large-scale machine suitable for large-area pesticide application, and has the advantages of good spraying quality, pesticide-saving property, less water consumption, high production efficiency and the like, and the liquid pesticide is atomized by the pressure of a liquid pump, and the fog drops are blown to all parts of the fruit tree by strong airflow generated by a fan.

At present, chinese patent with publication number CN104322474A discloses an air-assisted and spray-rod switchable spraying machine, which comprises a medicine box, a liquid pump, a fan, a deformable spray rod and a control system, wherein the input end of the liquid pump is connected with the medicine box, the output end of the liquid pump is connected with the deformable spray rod, the deformable spray rod is arranged at the air outlet of the fan, and the control system controls the fan to be turned on or turned off.

When the sprayer is used, the liquid pump is controlled to be started, the liquid pump sucks the liquid medicine in the medicine box into the liquid pump and pressurizes the liquid medicine on the inner wall, and then the liquid medicine is sprayed out through the deformation spray rod. Meanwhile, the control system controls the fan to be started, and the air blown out by the fan acts on the sprayed liquid medicine, so that the liquid medicine can move to a farther place.

However, in the process of using the sprayer, a user needs to carry the sprayer manually, and the sprayer is used for spraying the orchard more sufficiently. The sprayer is heavy, which means that the labor intensity of users is high, and the sprayer is inconvenient to use.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a traction air-assisted sprayer which has the advantages of low labor intensity of users and convenience in use.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a pull wind and send sprayer, includes sprinkler system, sprinkler system includes blast apparatus, the medical kit that is used for saving the liquid medicine, the liquid pump that is linked together with the medical kit, the spray tube that links to each other with the liquid pump output, the shower nozzle of setting on the spray tube lateral wall, blast apparatus is including installation cover, motor, the flabellum that links to each other with the motor, air intake and air outlet have been seted up to the installation cover, the spray tube is located air outlet department, the shower nozzle is towards keeping away from installation cover one side extension, still includes traveling system, traveling system includes the frame, rotates a plurality of wheels of connection on the frame and sets up the drive mechanism on the frame, sprinkler system installs on the terminal surface that the wheel was kept away from to the frame, drive mechanism includes the articulated seat of fixed connection on the terminal surface that the wheel was kept away from to the, And the driving rod is fixedly connected to the side wall of the hinged shaft.

Through above-mentioned technical scheme, when needs use this sprayer, pour the medicine of allotting into the medical kit inside, later control the liquid pump and open, the liquid pump is with the inside liquid medicine of medical kit pump to the liquid pump inside and pressurize the liquid medicine, later with liquid medicine row to spray tube department, the inside liquid medicine of spray tube is discharged from the shower nozzle. Meanwhile, the control motor is started, the motor drives the fan blades to rotate, wind enters from the air inlet and is discharged from the air outlet, the wind discharged from the air outlet plays a role in accelerating the liquid medicine sprayed by the spray head, and the liquid medicine can be sprayed to a distance. And when the sprayer is used, the driving rod is controlled to rotate around the hinge shaft, so that the distance between the driving rod and the spraying system is gradually increased. When the driving rod rotates to a certain angle, pulling force is applied to the driving rod, the wheels rotate under the action of the pulling force and drive the frame and the spraying system above the frame to move. In the process, the friction between the sprayer and the ground is rolling friction, the rolling friction is smaller than the gravity of the sprayer, the labor intensity of a user is greatly reduced, and the sprayer is more convenient to use.

Preferably, fixedly connected with butt piece on the terminal surface that the wheel was kept away from to the frame, butt piece is located between articulated seat and the sprinkler system, still be provided with first elastic component on the frame, first elastic component is used for compressing tightly the pull rod on butt piece.

Through above-mentioned technical scheme, when need not using this sprayer, first elastic component compresses tightly the pull rod on the butt piece. The condition that the driving rod topples and contacts with the ground can not occur, and when the sprayer needs to be used, a user does not need to bend down to lift the driving rod, so that the use of the rod sprayer is more convenient and quicker.

Preferably, the end face of the abutting block, which deviates from the spraying system, is an inclined face, and the distance between the inclined face and the frame gradually increases towards one side of the spraying system.

Through above-mentioned technical scheme, the terminal surface that the butt piece is close to the actuating lever is the inclined plane, and when actuating lever and inclined plane butt, the gravity of actuating lever self can make the actuating lever and be connected between the butt piece more stable like this to guarantee that the actuating lever is difficult to rotate towards keeping away from sprinkler system one side and with the condition of ground contact.

Preferably, a conical guide seat is arranged in the mounting cover, the tip end of the guide seat faces one side of the air inlet, and a plurality of connecting rods connected with the inner wall of the mounting cover are fixedly connected to the side wall, close to the air inlet, of the guide seat.

Through the technical scheme, in the process that wind enters from the air inlet and is discharged from the air outlet, the wind is in contact with the side wall of the guide seat, and then the wind direction changes. When wind is discharged from the air outlet, the included angle between the wind direction and the direction of the liquid medicine sprayed by the spray head is smaller, and the liquid medicine can move for a longer distance, so that the spraying effect of the spraying machine is improved to a certain extent.

Preferably, a transmission mechanism is arranged between the pull rod and the wheel and comprises a connecting rod, a first chain wheel, a second chain wheel and a chain, the connecting rod is coaxially arranged on the hinged shaft, the first chain wheel is in key connection with the connecting rod, the second chain wheel is coaxially connected with the wheel, and the chain is wound on the first chain wheel and the second chain wheel.

Through above-mentioned technical scheme, when control pull rod rotated towards keeping away from sprinkler system one side, the connecting rod that links to each other with the articulated shaft is taken place to rotate and is driven first sprocket and rotate. When the first chain wheel rotates, the first chain wheel drives the second chain wheel to rotate through the chain, the second chain wheel drives the coaxially connected wheels to rotate, and the spraying machine starts to move at the moment. The static friction between the sprayer and the ground is converted into rolling friction, and the rolling friction is smaller than the static friction, so that in the process of pulling the sprayer to move, only the rolling friction between the sprayer and the ground needs to be overcome, and the dragging process of the sprayer becomes more convenient and quicker.

Preferably, the end of the connecting rod away from the first sprocket penetrates through the end of the hinge shaft away from the first sprocket.

Through above-mentioned technical scheme, the connecting rod runs through in articulated shaft and protrusion in the tip of articulated shaft, and area of contact between connecting rod and the articulated shaft is great like this for the connecting rod is difficult for appearing along the cracked condition of articulated shaft tip, has improved the life of this sprayer to a certain extent.

Preferably, the connecting rod is rotatably connected with the hinge shaft, and a limiting mechanism for limiting the unidirectional rotation of the connecting rod is arranged between the connecting rod and the hinge shaft.

Through the technical scheme, when the pull rod rotates towards one side far away from the spraying system, the pull rod drives the connecting rod to rotate through the limiting mechanism, so that the trolley starts to move. When the pull rod rotates towards one side of the spraying system, the connecting rod is static so as to ensure that the trolley cannot move reversely. When the trolley is pulled to move through the pull rod, the situation that the trolley is prevented from moving due to the fact that the pull rod rotates towards one side of the spraying system can be avoided.

Preferably, the limiting mechanism comprises a ratchet wheel, a pawl and a second elastic piece, the ratchet wheel is connected to the connecting rod in a keyed mode, the pawl is hinged to the end face, away from the spraying system, of the driving rod, and the second elastic piece is located between the pawl and the driving rod and used for pressing the end portion, away from the driving rod, of the pawl to the ratchet wheel.

Through the technical scheme, when the pull rod rotates towards one side far away from the spraying system, the pawl is abutted to teeth on the side wall of the ratchet wheel and pushes the ratchet wheel to rotate, and the ratchet wheel drives the connecting rod to rotate when rotating. When the pull rod rotates towards one side of the spraying system, the ratchet wheel pushes the pawl to rotate towards the upper part, and in the process, the ratchet wheel does not rotate.

In summary, compared with the prior art, the beneficial effects of the invention are as follows:

1. the spraying system is arranged above the walking system, so that in the process of using the spraying machine, a user can apply pulling force on the walking system to drive the spraying machine to move, the friction force between the spraying machine and the ground is smaller than the gravity of the spraying machine, the labor intensity of the user is reduced to a certain extent, and the spraying machine is more convenient to use;

2. when the control pull rod rotates towards one side far away from the spraying system, the pull rod drives the wheels to rotate through the limiting mechanism and the transmission mechanism, so that static friction between the spraying machine and the ground is changed into rolling friction, when the spraying machine is pulled to move, only the rolling friction between the spraying machine and the ground needs to be overcome, and the spraying machine can be moved more conveniently and quickly.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment, which is mainly used for showing an appearance structure of the embodiment;

fig. 2 is an exploded schematic view of the blowing device, which is mainly used for showing the composition condition of the blowing device;

FIG. 3 is a partial schematic view of the embodiment, which is mainly used to show the components of the walking system and the transmission mechanism;

FIG. 4 is a partial cross-sectional view of the embodiment, primarily to show the components of the restraining mechanism.

Reference numerals: 1. an air inlet; 2. an air outlet; 3. a spraying system; 31. a blowing device; 311. mounting a cover; 312. a motor; 313. a fan blade; 32. a medicine chest; 33. a liquid pump; 34. a nozzle; 35. a spray head; 4. a traveling system; 41. a frame; 42. a wheel; 43. a traction mechanism; 431. a hinged seat; 432. a pull rod; 4321. hinging a shaft; 4322. a drive rod; 5. a butting block; 6. a first elastic member; 7. an inclined surface; 8. a guide seat; 9. a connecting rod; 10. a transmission mechanism; 101. a connecting rod; 102. a first sprocket; 103. a second sprocket; 104. a chain; 11. a limiting mechanism; 111. a ratchet wheel; 112. a pawl; 113. a second elastic member; 12. a first pulley; 13. a second pulley; 14. a belt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A traction air-assisted sprayer is shown in figure 1 and comprises a spraying system 3 and a traveling system 4. The spraying system 3 is used for spraying liquid medicine, and the traveling system 4 is used for driving the spraying system 3 to move.

As shown in fig. 1 and 2, the spraying system 3 includes a blower 31, a medicine box 32, a liquid pump 33, a nozzle 34, and a spray head 35. The blower 31 includes a mounting cover 311, a motor 312, and fan blades 313. The mounting cover 311 is cylindrical, an air inlet 1 for air to enter is formed in an end face of one end of the mounting cover 311, and an air outlet 2 for air to exit is formed in a side wall of the mounting cover 311. The installation cover 311 is provided with a guide seat 8 therein, the guide seat 8 is tapered, and the tip of the guide seat 8 faces the air inlet 1. The side wall of the guide base 8 far from the air inlet 1 is fixedly connected with a plurality of connecting rods 9, the connecting rods 9 are circumferentially and uniformly distributed by taking the axial lead of the guide base 8 as the center, and the end part of the connecting rod 9 far from the guide base 8 is fixedly connected with the inner wall of the mounting cover 311.

The motor 312 is located outside the mounting cover 311, and the output shaft of the motor 312 faces the mounting cover 311 side. The output shaft of the motor 312 is coaxially provided with a first pulley 12, and the output shaft of the motor 312 is connected with the first pulley 12 through a key. The fan 313 is rotatably connected inside the mounting cover 311, and the rotation axis of the fan 313 coincides with the axis of the mounting cover 311. The fan blade 313 is coaxially connected to a second pulley 13, and the second pulley 13 is exposed to an end surface of the mounting cover 311 close to the motor 312. The second pulley 13 is connected to the first pulley 12 by a belt 14. The medicine box 32 is adjacent to the mounting cover 311, and the side walls of the medicine box 32 and the medicine box 32 abut against the end face of the mounting portion facing away from the air inlet 1. The liquid pump 33 is located on the side of the mounting cover 311 away from the medicine box 32, and a liquid inlet of the liquid pump 33 communicates with the medicine box 32. The nozzle 34 is annular and located at the outlet 2. The number of spray heads 35 is several and evenly distributed along the length of the lance 34.

When the sprayer needs to be used, the prepared liquid medicine is poured into the medicine box 32, the liquid pump 33 is then turned on, the liquid pump 33 pumps the liquid medicine in the medicine box 32 to pressurize the liquid medicine, the liquid medicine is then conveyed into the spray pipe 34, and finally the liquid medicine in the spray pipe 34 is sprayed from the spray head 35. Meanwhile, the motor 312 is controlled to be turned on, and the motor 312 drives the fan blades 313 to rotate, so that the wind enters from the air inlet 1 and is discharged from the air outlet 2.

As shown in fig. 1 and 3, the traveling system 4 includes a frame 41, wheels 42, and a traction mechanism 43. The carriage 41 is located below the sprinkler system 3 and is connected to the sprinkler system 3. The number of the wheels 42 is several and evenly distributed on the end surface of the frame 41 far away from the spraying system 3, and the wheels 42 are rotatably connected with the frame 41. The pulling mechanism 43 includes a hinge mount 431 and a pull rod 432. The hinge mount 431 is fixedly attached to the frame 41. The pull rod 432 includes a hinge shaft 4321 and a driving rod 4322. The hinge shaft 4321 is rotatably connected to the hinge seat 431, and the hinge shaft 4321 is parallel to the rotation axis of the wheel 42. The driving rod 4322 is fixedly connected to a side wall of the hinge shaft 4321, and a length direction of the driving rod 4322 is perpendicular to a length direction of the hinge shaft 4321.

During the use of the sprayer, a pulling force is applied to the driving rod 4322, so that the driving rod 4322 and the hinged shaft 4321 integrally rotate around the axis of the hinged shaft 4321. And the frame 41 moves in the direction of the tensile force, the wheels 42 on the frame 41 rotate.

An abutting block 5 with a direct trapezoidal cross section is fixedly connected to the frame 41, and the abutting block 5 is located between the hinged seat 431 and the spraying system 3. The end surface of the abutment block 5 remote from the sprinkler system 3 is an inclined surface 7, and the cross-sectional area of the abutment block 5 gradually decreases towards the side remote from the frame 41. The frame 41 is further provided with a first elastic member 6, and the first elastic member 6 is located on the side of the hinge seat 431 far away from the sprinkler system 3. The first elastic member 6 abuts against the pull rod 432 and applies an elastic force directed to the side of the abutment block 5 to the pull rod 432, so that the pull rod 432 is pressed against the inclined surface 7 on the abutment block 5. The first elastic member 6 may employ a torsion spring, a tension spring, or the like in the present embodiment.

When it is desired to control the movement of the sprayer, the pull rod 432 is first controlled to rotate about the hinge axis 4321 towards the side away from the spraying system 3, and the pull rod 432 is detached from the abutment block 5. Then, a pulling force is applied to the end of the pull rod 432 away from the hinge base 431, so that the spraying machine moves towards the pulling force integrally.

A transmission mechanism 10 is arranged between the pull rod 432 and one wheel 42, and the transmission mechanism 10 comprises a connecting rod 101, a first chain wheel 102, a second chain wheel 103 and a chain 104. The connecting rod 101 coaxially penetrates through the inside of the hinge shaft 4321 and is rotatably connected with the hinge shaft 4321, and two ends of the connecting rod 101 respectively protrude out of two ends of the hinge shaft 4321. The first sprocket 102 is keyed to an end of the connecting rod 101, and a rotation axis of the first sprocket 102 coincides with a shaft axis of the connecting rod 101. When the connecting rod 101 rotates, the first sprocket 102 rotates along with the connecting rod, and the rotating angular speed of the first sprocket 102 is the same as that of the connecting rod 101. The second chain wheel 103 is coaxially connected to the wheel 42 opposite to the hinge base 431, and when the second chain wheel 103 rotates, the coaxially connected wheel 42 rotates along with the second chain wheel, and the rotating angular speed of the wheel 42 is the same as that of the second chain wheel 103. The chain 104 is wound around the first sprocket 102 and the second sprocket 103 and is used for controlling the first sprocket 102 and the second sprocket 103 to rotate at the same rotational linear speed.

As shown in fig. 1, 3 and 4, a limiting mechanism 11 is disposed between the connecting rod 101 and the hinge shaft 4321, and the limiting mechanism 11 includes a ratchet 111, a pawl 112 and a second elastic member 113. Ratchet 111 cup joints in connecting rod 101 middle part, and ratchet 111 links to each other with connecting rod 101 through the key to when guaranteeing connecting rod 101 to rotate, ratchet 111 can carry out synchronous rotation with connecting rod 101. The pawl 112 is hinged to the side wall of the drive rod 4322 facing away from the sprinkler system 3, and the end of the pawl 112 facing away from the hinge point extends towards the side of the ratchet wheel 111 and abuts against the tooth slot of the ratchet wheel 111. The second elastic member 113 is connected to the pull rod 432 at one end and to the pawl 112 at the other end, and the second elastic member 113 makes the pawl 112 always have a tendency to engage with the ratchet wheel 111. The second elastic member 113 may employ a tension spring, a torsion spring, or the like in the present embodiment.

The moving process of the traction air-assisted sprayer is as follows: first, the pull rod 432 is controlled to rotate towards the side far away from the spraying system 3, so that the distance between the end of the pull rod 432 far away from the hinged seat 431 and the spraying system 3 gradually increases. At the same time, the pawl 112 hinged on the side wall of the pull rod 432 pushes the ratchet wheel 111 to rotate, and the point of the ratchet wheel 111 in contact with the pawl 112 is gradually distanced from the sprinkler system 3. During the rotation of the ratchet wheel 111, the connecting rod 101, which is keyed to the ratchet wheel 111, rotates, and the rotational angular velocity of the connecting rod 101 is the same as the rotational angular velocity of the ratchet wheel 111. Meanwhile, the connecting rod 101 drives the first chain wheel 102 to rotate through the key, and the rotational angular velocity of the first chain wheel 102 is the same as the rotational angular velocity of the connecting rod 101. The first chain wheel 102 drives the second chain wheel 103 to rotate through the chain 104, and the linear speed of rotation of the second chain wheel 103 is the same as the linear speed of rotation of the first chain wheel 102. When the second chain wheel 103 rotates, the wheel 42 coaxially connected with the second chain wheel 103 rotates and drives the sprayer to move integrally. Only pulling force is needed to be applied to the end of the pull rod 432 far away from the hinge base 431, and the sprayer can be driven to move integrally.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. The utility model provides a draw wind to send sprayer, includes sprinkler system (3), sprinkler system (3) include blast apparatus (31), medical kit (32) that are used for saving the liquid medicine, liquid pump (33) that are linked together with medical kit (32), spray tube (34) that link to each other with liquid pump (33) output, shower nozzle (35) of setting on spray tube (34) lateral wall, blast apparatus (31) are including installation cover (311), motor (312), flabellum (313) that link to each other with motor (312), air intake (1) and air outlet (2) have been seted up on installation cover (311), spray tube (34) are located air outlet (2) department, shower nozzle (35) extend characterized by towards keeping away from installation cover (311) one side: the spraying system is characterized by further comprising a traveling system (4), wherein the traveling system (4) comprises a frame (41), a plurality of wheels (42) rotatably connected to the frame (41) and a traction mechanism (43) arranged on the frame (41), the spraying system (3) is installed on the end face, far away from the wheels (42), of the frame (41), the traction mechanism (43) comprises a hinged seat (431) fixedly connected to the end face, far away from the wheels (42), of the frame (41) and a pull rod (432) hinged to the hinged seat (431), and the pull rod (432) comprises a hinged shaft (4321) hinged to the hinged seat (431) and a driving rod (4322) fixedly connected to the side wall of the hinged shaft (4321);

a transmission mechanism (10) is arranged between the pull rod (432) and the wheel (42), the transmission mechanism (10) comprises a connecting rod (101), a first chain wheel (102), a second chain wheel (103) and a chain (104), the connecting rod (101) is coaxially arranged on a hinge shaft (4321), the first chain wheel (102) is connected to the connecting rod (101) in a key mode, the second chain wheel (103) is coaxially connected with one wheel (42), and the chain (104) is wound on the first chain wheel (102) and the second chain wheel (103);

the end part of the connecting rod (101) far away from the first chain wheel (102) penetrates through the end part of the hinge shaft (4321) far away from the first chain wheel (102);

the connecting rod (101) is rotatably connected with the hinged shaft (4321), and a limiting mechanism (11) for limiting the unidirectional rotation of the connecting rod (101) is arranged between the connecting rod (101) and the hinged shaft (4321);

the limiting mechanism (11) comprises a ratchet wheel (111), a pawl (112) and a second elastic piece (113), the ratchet wheel (111) is connected to the connecting rod (101) in a key mode, the pawl (112) is hinged to the end face, away from the spraying system (3), of the driving rod (4322), and the second elastic piece (113) is located between the pawl (112) and the driving rod (4322) and used for pressing the end portion, away from the driving rod (4322), of the pawl (112) to the ratchet wheel (111).

2. The drag air-assisted sprayer of claim 1, wherein: fixedly connected with butt piece (5) on the terminal surface of wheel (42) is kept away from in frame (41), butt piece (5) are located articulated seat (431) and sprinkling system (3) between, still be provided with first elastic component (6) on frame (41), first elastic component (6) are used for compressing tightly pull rod (432) on butt piece (5).

3. The drag air-assisted sprayer of claim 2, wherein: the end face, deviating from the spraying system (3), of the abutting block (5) is an inclined face (7), and the distance between the inclined face (7) and the frame (41) gradually increases towards one side of the spraying system (3).

4. The drag air-assisted sprayer of claim 1, wherein: the installation cover (311) is internally provided with a conical guide seat (8), the tip of the guide seat (8) faces one side of the air inlet (1), and the side wall of the guide seat (8) close to the air inlet (1) is fixedly connected with a plurality of connecting rods (9) connected with the inner wall of the installation cover (311).