CN210230356U

CN210230356U - Back sprayer

Info

Publication number: CN210230356U
Application number: CN201920605012.5U
Authority: CN
Inventors: Baocai Hou; 侯保才; Le Tan; 谭乐
Original assignee: Shenzhen Shenwei Biological Environmental Protection Technology Co ltd
Current assignee: Shenzhen Shenwei Biological Environmental Protection Technology Co ltd
Priority date: 2019-04-27
Filing date: 2019-04-27
Publication date: 2020-04-03
Anticipated expiration: 2029-04-27

Abstract

The utility model belongs to the technical field of the technique of atomizer and specifically relates to a knapsack sprayer is related to, it includes spray tank and pressure device. The pressurizing device comprises a pump cylinder, a plug, a rocker and a connecting rod, wherein the pump cylinder is arranged in the liquid medicine box, the plug is arranged in the pump cylinder, the rocker is connected with the liquid medicine box through a fixed shaft, one end of the connecting rod is connected with the plug, and the other end of the connecting rod is connected with the rocker. The rocker swings to drive the connecting rod to move up and down, and then the plug is driven to move up and down. The pressurizing device also comprises a push-pull rod, one end of the push-pull rod is hinged with the rocker, and the other end of the push-pull rod is hinged with a shoe part holder. When the shoe part holder is installed at the foot rear root of an operator, the shoe part holder is driven to lift by the lifting of the foot rear root, so that the push-pull rod moves up and down, the rocker is driven to swing, and the internal pressurization of the liquid medicine box is realized. The utility model discloses walking when the accessible sprays the pesticide, pressurization in the liquid case of dosing by the way has avoided long-time hand operation rocker to lead to hand fatigue, has improved work efficiency.

Description

Back sprayer

Technical Field

The utility model belongs to the technical field of the technique of atomizer and specifically relates to a knapsack sprayer is related to.

Background

At present, sprayers are applied to pest control, and particularly knapsack sprayers are popular among farmers. The knapsack sprayer is convenient to use and operate, is suitable for small-scale operation, and has a good treatment effect on plant diseases and insect pests.

The existing knapsack sprayer generally swings a rocker part through the swinging of hands, and finally, the spray head sprays mist. In the patent of the utility model CN204220345U, a backpack type hand-operated agricultural sprayer is disclosed, which swings the rocker manually, so that the air pressure in the air chamber rises gradually, and the liquid medicine at the bottom of the liquid medicine box passes through the outlet pipe and the spray rod, and finally is sprayed by the spray head.

The above prior art solutions have the following drawbacks: when the hand-operated knapsack sprayer is used, the rocker is operated by swinging the hand, so that the hand is easy to fatigue after long-time operation, and the working efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a walking, through the up-and-down motion of foot for rocker wobbling knapsack sprayer.

The utility model discloses the purpose can be realized through following technical scheme:

the utility model provides a knapsack sprayer, includes spray tank and pressure device, pressure device includes pump barrel, stopper post, rocker and connecting rod, spray tank one side is provided with the fixed axle, the pump barrel is installed in the spray tank, the stopper post is installed in the pump barrel, with stopper post sliding connection, the rocker passes through the fixed axle with spray tank rotates to be connected, connecting rod one end with stopper post fixed connection, the other end with the rocker rotates to be connected, works as when the rocker swing, can drive the connecting rod up-and-down motion, and then drive stopper post up-and-down motion, its characterized in that: the pressurizing device further comprises a push-pull rod, one end of the push-pull rod is hinged to the rocker, the other end of the push-pull rod is hinged to a shoe portion holder, when the shoe portion holder is installed at the rear root of a foot of an operator, the rear root of the foot is lifted, the shoe portion holder is driven to lift, the push-pull rod is driven to move up and down, and then the rocker is driven to swing.

By adopting the technical scheme, when the backpack sprayer is used, the feet can swing front and back to form a height difference due to the walking of an operator, and the feet are connected with the shoe part clamp holder, so that the lifting of the shoe part clamp holder can drive the push-pull rod to move up and down, further the rocker can be driven to swing, and the internal pressurization of the liquid medicine box is realized. Through the walking when spraying the pesticide, pressurize in the liquid case of dosing by the way, avoided long-time pressurizing the liquid case through hand operation rocker, lead to hand fatigue, influence work efficiency.

Preferably, the push-pull rod comprises an outer rod and an inner rod, the inner rod is embedded in the outer rod and is connected with the outer rod in a sliding mode, and a locking mechanism is arranged between the inner rod and the outer rod.

By adopting the technical scheme, when the backpack sprayer is used and the medicine liquid box is pressurized by the movement of the feet, the inner rod is pulled to increase the length of the push-pull rod, so that the push-pull rod is fixed by the locking mechanism, the shoe holder is installed again, and the push-pull rod is driven to lift by the height difference of the feet during walking, so that the rocker is driven to swing. When the medicine liquid box is pressurized without moving the foot, the inner rod is pushed, the length of the push-pull rod is reduced, the push-pull rod is fixed by the locking mechanism, and the medicine liquid box has the function of convenient storage.

Preferably, the cross sections of the inner rod and the outer rod are square, the locking mechanism comprises a telescopic clamping block arranged on the side wall of the inner rod, and a plurality of clamping holes for clamping the telescopic clamping block are formed in the side wall surface of the outer rod.

Through adopting above-mentioned technical scheme, when using this knapsack sprayer, because operator's height is different, need adjust the length of push-and-pull rod. The cross sections of the inner rod and the outer rod are square, and the side walls are horizontal planes, so that the telescopic clamping blocks are more conveniently clamped in the clamping holes. Because the inner rod is provided with the telescopic clamping block, the inner rod can be clamped in the clamping holes at different positions of the outer rod. Because the outer pole is provided with a plurality of card holes, can fix a plurality of different interim lengths, consequently made things convenient for the user to make the inside atmospheric pressure increase of liquid medicine case through the motion of foot.

Preferably, the telescopic fixture block comprises a pressure spring and a convex block, one end of the pressure spring is fixedly connected with the convex block, and the other end of the pressure spring is fixedly connected with the inner rod.

By adopting the technical scheme, when the inner rod slides, the convex block moves to the corresponding clamping hole position, and due to the pressure action of the pressure spring, the convex block can automatically pop out a part and is clamped in the clamping hole, so that the temporary length of the push-pull rod is fixed. When the temporary length of the push-pull rod needs to be changed, the convex block is manually pressed down, and then the inner rod is moved, so that the convex block is clamped in the other clamping hole. Through the arrangement of the pressure spring and the lug, the length of the push-pull rod is convenient to change.

Preferably, one end of the push-pull rod is provided with a first universal ball head, the rocker is provided with a first universal ball head seat, and the first universal ball head is embedded into the first universal ball head seat and is in rotating connection with the first universal ball head seat.

By adopting the technical scheme, when the backpack sprayer is used, the contact position of the push-pull rod and the rocker rod can present different angles due to different statures of users. Through the hinging mode of the first universal ball head, the push-pull rod can rotate at any angle, so that the push-pull rod can drive the rocker to swing more conveniently, and the swinging flexibility of the rocker is improved.

Preferably, the other end of the push-pull rod is provided with a second universal ball head, the shoe holder is provided with a second universal ball head seat, and the second universal ball head is embedded into the second universal ball head seat and is in rotating connection with the second universal ball head seat.

By adopting the technical scheme, when the knapsack sprayer is used by installing the shoe part clamp, the foot of a user moves in a curve and presents different angles with the telescopic rod. Through the hinging mode of the second universal ball head, the shoe holder can rotate at an angle, so that the push-pull rod can move up and down more conveniently, and the swinging flexibility of the push-pull rod is improved.

Preferably, the shoe part holder comprises a fixed plate, a first clamping plate, a second clamping plate and a screw rod, a T-shaped groove is formed in the fixed plate, the first clamping plate is fixed on the fixed plate, the second clamping plate is connected in the T-shaped groove in a sliding mode, the first clamping plate is located on the same surface of the fixed plate, the position of the first clamping plate is corresponding to that of the second clamping plate, a first mounting hole is formed in the first clamping plate, a second mounting hole is formed in the second clamping plate, the screw rod penetrates through the first mounting hole and the second mounting hole, the screw rod is connected with the first mounting hole in a rotating mode, and the screw rod is connected with the second mounting hole in a threaded mode.

Through adopting above-mentioned technical scheme, to the user, everybody's foot width is different. Through rotating the lead screw, can adjust the distance between first splint and the second splint, and then can set up the distance between first splint and the second splint according to user's foot width, make shoes portion holder and shoes portion centre gripping more firm, avoid leading to shoes portion holder to drop at the in-process of walking.

Preferably, a gasket is mounted on one surface of the first clamping plate opposite to the second clamping plate.

Through adopting above-mentioned technical scheme, when first splint and second splint contacted with shoes portion, owing to increased the gasket, can increase the comfort level of foot.

Preferably, the opposite surfaces of the gasket are provided with friction grooves.

Through adopting above-mentioned technical scheme, be provided with the friction groove on the gasket, increased the frictional force between gasket and the shoes, prevent when walking that shoes portion holder drops.

To sum up, the utility model discloses a beneficial technological effect does:

through installation foot's holder, when walking, can drive the lift of push-and-pull rod, and then drive the swing of rocker, realize the pressurization of liquid medicine incasement portion, avoided the fatigue that long-time hand operation rocker leads to, improved work efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the knapsack sprayer.

Fig. 2 is a schematic structural view of a pressurizing device of the knapsack sprayer.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a cross-sectional view of the push-pull rod of the knapsack sprayer.

FIG. 5 is a schematic view showing the structure of a shoe holder of the knapsack sprayer.

Fig. 6 is an enlarged view at B in fig. 5.

In the figure, 1, a liquid medicine box; 11. a liquid inlet; 12. a cover; 13. a fixed shaft; 131. a baffle plate; 2. a pressurizing device; 21. a pump barrel; 22. a plug; 23. a rocker; 231. a first universal ball socket; 24. a connecting rod; 241. a rotating shaft; 25. a push-pull rod; 251. a first universal ball head; 252. a second universal ball head; 253. an outer rod; 254. an inner rod; 255. a locking mechanism; 2551. a telescopic clamping block; 25511. a pressure spring; 25512. a bump; 2552. a clamping hole; 3. a shoe portion holder; 31. a fixing plate; 311. a T-shaped groove; 312. a second universal ball cup base; 32. a first splint; 321. a first mounting hole; 3211. a bearing; 33. a second splint; 331. a second mounting hole; 34; a screw rod; 35. gasket 351, friction groove.

Detailed Description

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

Referring to fig. 1 and 2, a knapsack sprayer disclosed by the present invention comprises a liquid medicine tank 1 and a pressurizing device 2.

A liquid inlet 11 is formed in the top of the liquid medicine box 1, a cover 12 is arranged at the position of the liquid inlet 11, and the cover 12 is in threaded connection with the liquid inlet 11, so that the liquid inlet is temporarily closed.

The pressurizing device 2 includes a pump cylinder 21, a plug 22, a rocker 23, and a connecting rod 24. The bottom of one side of the liquid medicine box 1 is provided with a fixed shaft 13, the peripheral surface of the rocker 23 is sleeved on the end surface of the fixed shaft 13, clearance fit is formed between the rocker and the fixed shaft, and the rocker 23 can rotate around the fixed shaft 13. The fixed shaft 13 penetrates through the end face of the rocker 23 and is welded with a baffle 131, and the baffle 131 prevents the rocker 23 from falling off from the fixed shaft 13.

The pump barrel 21 is installed inside the liquid medicine box 1, and one end of the pump barrel extends out of the top of the liquid medicine box 1 and is far away from one side of the cover 12. The plug 22 is mounted in the pump barrel 21. The connecting rod 24 is L-shaped, one end of the short side is welded on the top of the plug 22, and one end of the long side is rotatably connected with the rocker 23 through a rotating shaft 241. The rocker 23 rotates around the fixed shaft 13, and the connecting rod 24 is driven to move up and down. Meanwhile, one end of the connecting rod 24 is welded on the top of the plug 22, and the up-and-down movement of the connecting rod 24 drives the plug 22 to move up and down, so that the pressurization of the interior of the liquid medicine box 1 can be realized. (the connection and operation of the pump barrel and the plug are prior art and will not be described in detail).

Referring to fig. 3 and 4, the pressurizing device 2 further includes a push-pull rod 25, one end of the push-pull rod 25 is hinged to the rocker 23, and the other end is hinged to the shoe holder 3. One end of the push-pull rod 25 is welded with a first universal ball head 251, the rocker 23 is provided with a first universal ball head seat 231, and the first universal ball head 251 is embedded into the first universal ball head seat 231, so that the push-pull rod 25 is hinged to the rocker 23. The other end of the push-pull rod 25 is welded with a second universal ball head 252, the shoe holder 3 comprises a fixing plate 31, a second universal ball head base 312 is mounted on the fixing plate 31, and the second universal ball head 252 is embedded into the second universal ball head base 312, so that the push-pull rod 25 is hinged to the shoe holder 3. The up-and-down movement of the foot holder drives the push-pull rod 25 to move up and down, thereby realizing the swing of the rocker 23.

The push-pull rod 25 includes an outer rod 253 and an inner rod 254, the inner rod 254 being embedded within the outer rod 253 and slidably connected to the outer rod 253. The inner rod 254 and the outer rod 253 have square cross sections, and a locking mechanism 255 is provided between the inner rod 254 and the outer rod 253.

The locking mechanism 255 includes a plurality of retractable latch 2551 disposed on a side wall of the inner rod 254 and a plurality of latch holes 2552 formed on a corresponding side wall of the outer rod 253 for latching the retractable latch 2551, and the number of the latch holes 2552 is four in this embodiment. The locking holes 2552 are circular, have the same shape and size, are located on the same side wall of the outer rod 253, and have the same center on the same axis.

The telescopic fixture block 2551 comprises a compression spring 25511 and a cylindrical projection 25512, one end of the compression spring 25511 is welded outside the side wall of the inner rod 254, and the other end of the compression spring 25511 is welded on one end face of the projection 25512. When the inner rod 254 slides, and the projection 25512 moves to the corresponding position of the locking hole 2552, due to the pressure of the pressure spring 25511, a part of the projection 25512 automatically pops out and is locked in the locking hole 2552, so that the temporary length of the push-pull rod 25 is fixed. When the temporary length of the push-pull rod 25 needs to be changed, the projection 25512 is manually pressed, and the inner rod 254 is moved, so that the clamping block is clamped in the other clamping hole 2552.

Referring to fig. 4 and 5, the shoe holder 3 further includes a first clamping plate 32, a second clamping plate 33 and a lead screw 34, the fixing plate 31 is provided with a T-shaped groove 311, the first clamping plate 32 is fixed on the fixing plate 31, the second clamping plate 33 is slidably connected in the T-shaped groove 311, and the first clamping plate 32 and the second clamping plate 33 are located on the same plane of the fixing plate 31 and have corresponding positions. The first clamping plate 32 is provided with a first mounting hole 321, the second clamping plate 33 is provided with a second mounting hole 331, and the screw rod 34 penetrates through the first mounting hole 321 and the second mounting hole 331. The first mounting hole 321 is provided with a bearing 3211, and the wire is mounted on the bearing 3211 without a thread at the mounting position. The second mounting hole 331 is provided with a thread engaged with the screw 34. By rotating the screw rod 34, the distance between the first clamping plate 32 and the second clamping plate 33 can be adjusted, so that the shoe part can be clamped more stably.

The first clamping plate 32 and the second clamping plate 33 are respectively adhered with a gasket 35 on the opposite surfaces, and the gasket 35 is made of rubber. The opposite side of gasket 35 has all seted up friction groove 351.

The implementation principle of the embodiment is as follows: when the knapsack sprayer is used, the height difference of the foot can be generated when a user walks, and the height difference can also be generated by installing the shoe part clamp 3 to ensure that the shoe part clamp 3 moves along with the foot. The movement of the shoe part holder 3 drives the push-pull rod 25 to move up and down, so that the rocker 23 swings, and the air pressure in the liquid medicine box 1 is increased. The fatigue caused by long-time hand operation of the rocker 23 is avoided, and the working efficiency is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a knapsack sprayer, includes spray tank (1) and pressure device (2), pressure device (2) are including pump barrel (21), stopper post (22), rocker (23) and connecting rod (24), spray tank (1) one side is provided with fixed axle (13), install pump barrel (21) in spray tank (1), stopper post (22) are installed in pump barrel (21), with stopper post (22) sliding connection, rocker (23) pass through fixed axle (13) with spray tank (1) rotates and is connected, connecting rod (24) one end with stopper post (22) fixed connection, the other end with rocker (23) rotate and connect, when rocker (23) swing, can drive connecting rod (24) up-and-down motion, and then drive stopper post (22) up-and-down motion, its characterized in that: the pressurizing device (2) further comprises a push-pull rod (25), one end of the push-pull rod (25) is hinged to the rocker (23), the other end of the push-pull rod is hinged to the shoe portion holder (3), when the shoe portion holder (3) is installed at the rear root of the foot of an operator, the rear root of the foot is lifted, the shoe portion holder (3) is driven to lift, the push-pull rod (25) moves up and down, and the rocker (23) is driven to swing.

2. The knapsack sprayer of claim 1, wherein: the push-pull rod (25) comprises an outer rod (253) and an inner rod (254), the inner rod (254) is embedded into the outer rod (253) and is connected to the outer rod (253) in a sliding mode, and a locking mechanism (255) is arranged between the inner rod (254) and the outer rod (253).

3. The knapsack sprayer of claim 2, wherein: interior pole (254) with the cross section of outer pole (253) is square, locking mechanical system (255) include flexible fixture block (2551) that interior pole (254) lateral wall set up, locking mechanical system (255) still include set up a plurality of confessions on outer pole (253) lateral wall surface the card hole (2552) of flexible fixture block (2551) joint.

4. The knapsack sprayer of claim 3, wherein: the telescopic clamping block (2551) comprises a pressure spring (25511) and a projection (25512), one end of the pressure spring (25511) is fixedly connected with the projection (25512), and the other end of the pressure spring (25511) is fixedly connected with the inner rod (254).

5. The knapsack sprayer of claim 3, wherein: one end of the push-pull rod (25) is provided with a first universal ball head (251), the rocker (23) is provided with a first universal ball head seat (231), and the first universal ball head (251) is embedded into the first universal ball head seat (231) and is in rotating connection with the first universal ball head seat.

6. The knapsack sprayer of claim 4, wherein: the other end of the push-pull rod (25) is provided with a second universal ball head (252), the shoe holder (3) is provided with a second universal ball head seat (312), and the second universal ball head (252) is embedded into the second universal ball head seat (312) and is in rotating connection with the second universal ball head seat.

7. The knapsack sprayer of claim 1, wherein: the shoe part clamp holder (3) comprises a fixing plate (31), a first clamping plate (32), a second clamping plate (33) and a screw rod (34), the fixing plate (31) is provided with a T-shaped groove (311), the first clamping plate (32) is fixed on the fixing plate (31), the second clamping plate (33) is connected in the T-shaped groove (311) in a sliding manner, the first clamping plate (32) and the second clamping plate (33) are positioned on the same surface of the fixing plate (31), and the positions are corresponding, a first mounting hole (321) is arranged on the first clamping plate (32), the second clamping plate (33) is provided with a second mounting hole (331), the screw rod (34) penetrates through the first mounting hole (321) and the second mounting hole (331), the screw rod (34) is rotatably connected with the first mounting hole (321), and the screw rod (34) is in threaded connection with the second mounting hole (331).

8. The knapsack sprayer of claim 7, wherein: and a gasket (35) is arranged on one surface of the first clamping plate (32) opposite to one surface of the second clamping plate (33).

9. The knapsack sprayer of claim 8, wherein: and friction grooves (351) are formed in the opposite surfaces of the gaskets (35).