CN213762423U

CN213762423U - Knapsack sprayer

Info

Publication number: CN213762423U
Application number: CN202022441715.4U
Authority: CN
Inventors: 廖贤明; 王应志
Original assignee: Hunan Kejian Yuanda Pest Control Technology Co ltd
Current assignee: Hunan Kejian Yuanda Pest Control Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-23
Anticipated expiration: 2030-10-28

Abstract

The application relates to a knapsack sprayer, which belongs to the field of spraying devices and comprises a box body, wherein the side wall of the box body is connected with a hose, one end of the hose is connected with a spraying pipe, and one end of the spraying pipe, which is far away from the spraying pipe, is connected with a spray head; one side of the box body, which is close to the hose, is connected with a supporting rod; the upper surface of the supporting rod is provided with a clamping piece for clamping the spray pipe; and a rotating assembly used for adjusting the included angle between the supporting rod and the horizontal plane is arranged between the supporting rod and the box body. This application has the effect that liberation operator's both hands are convenient for carry out other operations.

Description

Knapsack sprayer

Technical Field

The application relates to the field of spraying devices, in particular to a knapsack sprayer.

Background

In the agricultural production at present, the plant diseases and insect pests are more, and to this phenomenon, the pesticide atomizer among the prior art has two kinds: one is a manual pressure bar type manual sprayer, which cannot spray the pesticide on the plants due to uneven manual pressurization force during use, and thus has poor spraying effect. The other is an electric sprayer, which solves the defect of uniform pressure existing in the operation of a manual pressure lever.

Chinese patent No. CN204074340U discloses a backpack sprayer, which comprises a liquid storage tank, wherein the outer wall of the liquid storage tank is provided with a first chute, the chute is connected with a binding band in a matching manner, and the binding band is connected with a limiting mechanism for limiting the sliding of the binding band; the part of the binding band close to the liquid storage tank is connected with a single-shoulder strap, the other end of the single-shoulder strap is provided with a connecting piece, and the connecting piece is connected with the part of the binding band far away from the liquid storage tank; the liquid storage tank is bound on the body through a binding band, and the shoulder is wound by the single-shoulder strap; the liquid storage tank is more comfortable, the motor is started, and the pump body is driven by the motor to spray liquid in the liquid storage tank out of the spray gun; the spray gun is held by hand and is aimed at the object to be sprayed.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that the operator needs to hold the spray gun all the time during spraying, and cannot operate other devices at the same time.

SUMMERY OF THE UTILITY MODEL

In order to liberate the hands of an operator and facilitate other operations, the application provides a knapsack sprayer.

The application provides a knapsack sprayer adopts following technical scheme:

a knapsack sprayer comprises a box body, wherein the side wall of the box body is connected with a hose, one end of the hose is connected with a spraying pipe, and one end of the spraying pipe, which is far away from the spraying pipe, is connected with a spray head; one side of the box body, which is close to the hose, is connected with a supporting rod; the upper surface of the supporting rod is provided with a clamping piece for clamping the spray pipe; and a rotating assembly used for adjusting the included angle between the supporting rod and the horizontal plane is arranged between the supporting rod and the box body.

By adopting the technical scheme, the spray pipe can be fixed on the support rod through the clamping piece during spraying, and the angle between the support rod and the spray pipe is adjusted through the rotating assembly; can install the spray tube to the bracing piece during the spraying, can liberate operator's both hands and be convenient for carry out other operations.

Optionally, the rotating assembly comprises an internal gear vertically arranged on the side wall of the box body, and a sliding rod coaxially arranged with the internal gear is vertically fixed on the side wall of the box body; a straight gear is coaxially meshed in the inner gear; the supporting rod is connected to one side of the straight gear, which is far away from the box body; the straight gear slides along the axial direction of the sliding rod.

By adopting the technical scheme, the supporting rod is pushed, the supporting rod slides along the length direction of the sliding rod, and the straight gear is separated from the inner gear at the moment; the supporting rod is moved after the angle between the supporting rod and the straight gear is rotated by taking the sliding rod as an axis, so that the straight gear and the inner gear are meshed again; the straight gear is meshed with the internal gear, each tooth surface of the straight gear is abutted to each tooth surface of the internal gear, and the limitation of circumferential rotation is more stable.

Optionally, a limiting plate is fixed to one end, away from the box body, of the sliding rod.

Through adopting above-mentioned technical scheme, the spur gear slides on the slide bar and is spacing by the limiting plate, prevents that the spur gear from breaking away from the slide bar and dropping, makes the structure more stable.

Optionally, a compression spring is sleeved on the sliding rod, and two ends of the compression spring are respectively connected with the limiting plate and the straight gear.

Through adopting above-mentioned technical scheme, promote the spur gear through compression spring, make spur gear and internal gear mesh all the time, prevent that spur gear and internal gear from breaking away from.

Optionally, an opening for the spray pipe to pass through is formed above the clamping piece; the bottom end of the clamping piece is fixed with the supporting rod; the clamping piece is made of elastic materials.

By adopting the technical scheme, the spray pipe is clamped into the fixing piece through the opening, so that the spray pipe is connected with the supporting rod; the fixing piece is convenient when the elastic piece spraying pipe is clamped in and taken out, and the operation is simple.

Optionally, one end of the spray pipe, which is far away from the hose, is provided with a deep groove with a circular ring-shaped cross section, and the axis of the deep groove is the same as the axis of the spray pipe; the deep groove is connected with a telescopic pipe in a sliding mode, and the spray head is connected with one end, far away from the hose, of the telescopic pipe.

Through adopting above-mentioned technical scheme, the flexible pipe of manual promotion slides in the deep trouth of spraying pipe, and flexible pipe is extensible, the distance of extension spraying, the increase scope of spraying.

Optionally, the outer wall of the extension tube is connected with a push block arranged along the radial direction of the extension tube, and the outer wall of the spray tube is provided with a chute communicated with the deep groove; the push block slides in the sliding groove, and distances are reserved between the two ends of the sliding groove and the two ends of the spray pipe respectively.

By adopting the technical scheme, the push block is connected with the telescopic pipe, the push block slides in the sliding groove, and the extension and contraction of the telescopic pipe can be controlled by manually pushing the push block; simultaneously, there is the distance at the both ends of spout and spray tube both ends, and the spout both ends do not communicate with the external world promptly, and the slider can only slide in the spout and can not break away from, has restricted flexible pipe can not break away from the deep trouth, makes the structure more stable.

Optionally, a plurality of clamping grooves for clamping the pushing block are formed in the side wall of the sliding groove along the length direction of the sliding groove.

Through adopting above-mentioned technical scheme, promote the ejector pad and promote flexible pipe to suitable length after, stir the ejector pad, make ejector pad and flexible pipe rotate along the axis of stretch-draw pipe, in the ejector pad card goes into the draw-in groove, the ejector pad is restricted by the draw-in groove can't rotate along stretch-draw pipe axial, the length that stretches out flexible pipe is fixed, the operation is more stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a supporting rod is arranged on one side of the box body close to the hose, the spray pipe is connected with the supporting rod through a clamping piece, the spray pipe can be fixed on the supporting rod through the clamping piece, and the angle between the supporting rod and the spray pipe is adjusted through a rotating assembly; can install the spray tube to the bracing piece during the spraying, can liberate operator's both hands and be convenient for carry out other operations.

2. The spraying pipe is provided with a deep groove, a telescopic pipe is connected in the deep groove in a sliding manner, and the spray head is connected with the telescopic pipe; the telescopic pipe is manually pushed to slide in the deep groove of the spraying pipe, and can extend, so that the spraying distance is prolonged, and the spraying range is enlarged.

Drawings

FIG. 1 is a schematic view of the overall structure of a knapsack sprayer according to an embodiment of the present application;

FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;

fig. 3 is an enlarged schematic view of a portion B shown in fig. 2.

Description of reference numerals: 1. a box body; 2. a water inlet; 3. a water cover; 4. a hose; 5. a spray tube; 6. a spray head; 7. a support bar; 8. a clamping member; 9. a rotating assembly; 91. an internal gear; 92. a slide bar; 93. a spur gear; 94. a limiting plate; 95. a compression spring; 10. deep grooves; 11. a telescopic pipe; 12. a push block; 13. a chute; 14. a card slot; 15. a clamping block; 16. fixing grooves; 17. and a limiting pin.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses knapsack sprayer, refer to fig. 1 and 2, including box 1, box 1 top is equipped with water inlet 2, and threaded connection has water cover 3 on the water inlet 2. Be equipped with the battery in the box 1, the battery is connected with the water pump, and the water pump is connected with hose 4, and hose 4 stretches out from the lateral wall of box 1, and the one end that box 1 was kept away from to hose 4 is connected with spray tube 5, and the one end that hose 4 was kept away from to spray tube 5 is connected with shower nozzle 6. The liquid to be sprayed is injected through the water inlet 2, the water pump is started, and the water pump pumps the liquid in the box body 1 out of the spray head 6 through the hose 4 and the spray pipe 5.

One side of the box body 1 close to the hose 4 is provided with a support rod 7, and the support rod 7 and one side of the box body 1 close to the hose 4 are arranged in parallel. The upper surface of the support rod 7 is welded with a clamping piece 8, and the spray pipe 5 is clamped by the clamping piece 8; a rotating component 9 is arranged between the supporting rod 7 and the box body 1, and the rotating component 9 is used for changing the angle of the supporting rod 7. The spraying pipe 5 is detachably connected with the supporting rod 7 through the clamping piece 8, and the angle between the supporting rod 7 and the spraying pipe 5 is changed through the rotating assembly 9 so as to change the spraying angle.

The rotating assembly 9 includes an internal gear 91, and the internal gear 91 is vertically welded to a side wall of the case 1 near the hose 4. A cylindrical sliding rod 92 is vertically welded on one side of the box body 1 close to the inner gear 91, and the sliding rod 92 and the inner gear 91 are coaxially arranged. A straight gear 93 is sleeved on and connected with the slide rod 92 in a sliding manner, and the straight gear 93 and the inner gear 91 are coaxially arranged; the spur gear 93 has the same modulus and profile angle as the internal gear 91, and the spur gear 93 and the internal gear 91 can mesh with each other. The support rod 7 is welded on one side of the spur gear 93 far away from the box body 1. When the spur gear 93 is engaged with the internal gear 91, the angle of the support rod 7 is limited, the spur gear 93 slides along the slide rod 92 to be disengaged from the internal gear 91, and the angle of the support rod 7 and the spur gear 93 is changed by using the slide rod 92 as a rotating shaft, and then the spur gear 93 is engaged with the internal gear 91 again to change the angle.

And a limiting plate 94 is welded on one side of the sliding rod 92 away from the box body 1, and the limiting plate 94 is disc-shaped and is arranged coaxially with the sliding rod 92. The stopper plate 94 prevents the spur gear 93 and the support bar 7 from being disengaged from the slide bar 92.

The sliding rod 92 is sleeved with a compression spring 95, one end of the compression spring 95 is welded with one side of the limiting plate 94 close to the spur gear 93, and the other end of the compression spring 95 is welded with one side of the spur gear 93 close to the limiting plate 94.

Referring to fig. 1 and 3, a deep groove 10 is vertically formed in one end, away from the hose 4, of the spray pipe 5, the cross section of the deep groove 10 is circular, and the axis of the deep groove 10 is the same as the axis of the spray pipe 5; an extension pipe 11 is arranged in the deep groove 10, and the extension pipe 11 is connected with the deep groove 10 in a sliding manner; the spray head 6 is welded to the end of the telescopic tube 11 remote from the hose 4. The spray head 6 is communicated with the hose 4 and the interior of the box body 1 through a telescopic pipe 11. The telescopic pipe 11 is held by hand, and the spraying range is adjusted by manually controlling the telescopic distance.

The outer peripheral wall of the telescopic pipe 11 is welded with a pushing block 12, and the pushing block 12 is arranged along the radial direction of the telescopic pipe 11 and is vertical to the ground. Spout 13 has been seted up to injection spray pipe 5 periphery wall, and spout 13 and deep trouth 10 intercommunication, and the length of spout 13 sets up along injection spray pipe 5's axis, and the distance is left respectively at spout 13 both ends and injection spray pipe 5's both ends. The pushing block 12 is connected with the sliding groove 13 in a sliding way. The pushing block 12 is pushed, the pushing block 12 drives the telescopic tube 11 to slide in the deep groove 10 to realize telescopic, and the pushing block 12 is limited by two ends of the sliding groove 13 to prevent the telescopic tube 11 from separating from the deep groove 10.

The side wall of the sliding groove 13 is provided with a clamping groove 14, the side length of the clamping groove 14 parallel to the axis of the telescopic tube 11 is the same as the side length of the push block 12 parallel to the axis of the telescopic tube 11, and the push block 12 can be clamped in the clamping groove 14. A plurality of the engaging grooves 14 are uniformly arranged along the length direction of the sliding groove 13. The pushing block 12 is pushed, the pushing block 12 and the telescopic pipe 11 rotate along the axis of the telescopic pipe 11, the pushing block 12 is clamped with the clamping groove 14, and the pushing block 12 is limited to move along the length direction of the sliding groove 13.

The clamping piece 8 is arranged in a circular ring shape, and the spraying pipe 5 is sleeved with the clamping piece 8. An opening is provided above the holder 8, and the opening allows the spray tube 5 to pass through. The holder 8 is made of plastic. The lower peripheral wall of the clamping piece 8 is fixed with the supporting rod 7. The spray tube 5 is snapped into the holder 8 along the opening of the holder 8 for fixation.

The clamp 8 is provided in plurality along the length direction of the support rod 7. The spray pipe 5 is clamped by the clamping pieces 8, and the spray pipe 5 is more stably connected with the supporting rod 7.

A fixture block 15 is welded on one side of the box body 1 close to the support rod 7, and the fixture block 15 is arranged right above the inner gear 91. The side of the fixture block 15 away from the case 1 is provided with a fixing groove 16, and when the support rod 7 is vertical and the spur gear 93 is engaged with the internal gear 91, the support rod 7 is engaged with the fixing groove 16 of the fixture block 15. When the sprayer is not needed, the straight gear 93 is separated from the internal gear 91, the supporting rod 7 is pushed to rotate axially by taking the sliding rod 92 as an axial direction, the supporting rod 7 is clamped into the fixing groove 16, the supporting rod 7 is limited, and the supporting rod 7 is prevented from being broken under the action of external force.

The side wall of the clamping block 15 vertically penetrates through and is connected with a limiting pin 17 in a sliding mode, and when the supporting rod 7 is clamped into the fixing groove 16, the side wall of the limiting pin 17 is flush with one side, away from the box body 1, of the supporting rod 7. The limiting pin 17 is in interference connection with the fixture block 15. When the support rod 7 is clamped into the fixing groove 16 of the clamping block 15, the limiting pin 17 is installed, and the limiting pin 17 limits the support rod 7 to move along the axial direction of the slide rod 92, so that the support rod 7 is prevented from being separated.

The implementation principle of the knapsack sprayer in the embodiment of the application is as follows: the medicament is infused from the water inlet 2. The limit pin 17 is removed, the support rod 7 is pushed along the axial direction of the slide rod 92, the support rod 7 drives the straight gear 93 to rotate, and the straight gear 93 is separated from the inner gear 91. The support rod 7 is controlled manually to rotate around the slide rod 92, and the spur gear 93 and the internal gear 91 move relatively. After the support rod 7 is adjusted to a desired angle, the support rod 7 is loosened, and the spur gear 93 is re-engaged with the inner gear 91 under the action of the compression spring 95.

The pushing block 12 is pushed according to the requirement, the pushing block 12 slides along the sliding groove 13, the pushing block 12 and the telescopic pipe 11 extend the telescopic pipe 11 to a proper length, then the pushing block 12 is pushed, the pushing block 12 is clamped into the clamping groove 14, the extending length of the telescopic pipe 11 is limited, and the spraying range is controlled.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A knapsack sprayer comprises a box body (1), wherein the side wall of the box body (1) is connected with a hose (4), one end of the hose (4) is connected with a spraying pipe (5), and one end, far away from the hose (4), of the spraying pipe (5) is connected with a spray head (6); the method is characterized in that: one side of the box body (1) close to the hose (4) is connected with a support rod (7); the upper surface of the supporting rod (7) is provided with a clamping piece (8) for clamping the spray pipe (5); and a rotating assembly (9) used for adjusting an included angle between the supporting rod (7) and a horizontal plane is arranged between the supporting rod (7) and the box body (1).

2. The knapsack sprayer of claim 1, wherein: the rotating assembly (9) comprises an inner gear (91) vertically arranged on the side wall of the box body (1), and a sliding rod (92) coaxially arranged with the inner gear (91) is vertically fixed on the side wall of the box body (1); a spur gear (93) is coaxially meshed in the inner gear (91); the supporting rod (7) is connected to one side, far away from the box body (1), of the straight gear (93); the straight gear (93) axially slides along the slide rod (92).

3. The knapsack sprayer of claim 2, wherein: and a limiting plate (94) is fixed at one end of the sliding rod (92) far away from the box body (1).

4. A knapsack sprayer as claimed in claim 3 wherein: the sliding rod (92) is sleeved with a compression spring (95), and two ends of the compression spring (95) are connected with the limiting plate (94) and the straight gear (93) respectively.

5. The knapsack sprayer of claim 1, wherein: an opening for the spray pipe (5) to pass through is formed above the clamping piece (8); the bottom end of the clamping piece (8) is fixed with the supporting rod (7); the clamping piece (8) is made of elastic material.

6. The knapsack sprayer of claim 1, wherein: one end of the spray pipe (5) far away from the hose (4) is provided with a deep groove (10) with a circular ring-shaped cross section, and the axis of the deep groove (10) is the same as that of the spray pipe (5); a telescopic pipe (11) is connected in the deep groove (10) in a sliding mode, and the spray head (6) is connected with one end, far away from the hose (4), of the telescopic pipe (11).

7. The knapsack sprayer of claim 6, wherein: the outer wall of the extension tube (11) is connected with a push block (12) arranged along the radial direction of the extension tube, and the outer wall of the spray tube (5) is provided with a sliding groove (13) communicated with the deep groove (10); the push block (12) slides in the sliding groove (13), and distances are reserved between the two ends of the sliding groove (13) and the two ends of the spray pipe (5) respectively.

8. The knapsack sprayer of claim 7, wherein: the lateral wall of spout (13) is seted up and is supplied draw-in groove (14) of ejector pad (12) joint, draw-in groove (14) are provided with a plurality ofly along the length direction of spout (13).