Backpack type electric sprayer

By introducing a motor-driven swing component and an adjustable spray gun fixing structure into the backpack electric sprayer, the problem of wrist fatigue caused by manually adjusting the spray direction is solved, and the spray direction and swing amplitude are automatically adjusted, reducing wrist injury.

CN223979350UActive Publication Date: 2026-03-10河源市公园事务服务中心
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing backpack-style electric sprayers require manual adjustment of the spray direction during prolonged use, leading to fatigue and injury to the wrist muscles.

Method used

A design was developed that includes a motor-driven swing assembly and an adjustable spray gun fixing structure. The motor drives the telescopic structure, slider, turntable and other components to automatically adjust the spray direction and swing amplitude of the spray gun, reducing manual operation.

Benefits of technology

It effectively reduces the strain on the wrist, prevents wrist injuries, and enables automatic adjustment of spray direction and amplitude.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223979350U_ABST
    Figure CN223979350U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of electric sprayers, and provides a backpack type electric sprayer which comprises an electric sprayer body, a base, a spray gun and a water pipe, the base is fixedly arranged at the lower end of the electric sprayer body, a fixing block is fixedly arranged on the side wall of the electric sprayer body, and a sliding block is fixedly connected to the fixing block. The side wall of the sliding block is fixedly connected with a base, the base is rotationally connected with a rotating disc, the outer wall of the rotating disc is fixedly connected with a first fixing plate, the other end of the first fixing plate is rotationally connected with a bearing plate, the bearing plate is fixedly connected with two clamping blocks, and the two clamping blocks fix a spray gun in a mutual matching mode; and a swing assembly is arranged at the lower end of the bearing plate fixing block in a matched mode. The spraying direction of the spray gun can be automatically adjusted, the labor intensity of the wrist part is effectively reduced, the wrist part is effectively prevented from being damaged, and the swing amplitude of the spray gun can be adjusted.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of electric sprayer technology, and in particular to a backpack electric sprayer. Background Technology

[0002] Agriculture is an industry that utilizes the growth and development patterns of plants and animals to obtain products through artificial cultivation. Agriculture belongs to the primary sector, and the science that studies agriculture is agronomy. The objects of agricultural labor are living plants and animals, and the products obtained are the plants and animals themselves. Agriculture is a fundamental industry that supports national economic construction and development. In many mountainous and hilly areas of my country, large-scale agricultural spraying equipment cannot access these areas, so pesticide spraying must be done manually. Commonly used spraying machinery is still manual, carried on the back.

[0003] Chinese patent (application number: 202222945365.4) discloses a backpack-style electric sprayer, including an electric sprayer body, a stirring assembly in the middle of the fastening cap, shoulder straps symmetrically arranged on the left and right sides of the rear outer surface of the electric sprayer body, a fixing frame on the right side of the electric sprayer body, a fixing rod in the middle of the fixing frame, a slider slidably connected to the outer wall of the fixing rod, a support rod connected to one end of the slider, a support plate fixedly connected to the end of the support rod away from the slider, a rotating column rotatably connected to the top of the support plate, a rotating disk at the top of the rotating column, a fixing plate at one end of the top of the rotating disk, a fixing shaft on the inner side of the fixing plate, a sleeve connected to the outer wall of the fixing shaft, and a telescopic spray gun rod connected to the outer wall of the sleeve. Although this device does not require the user to manually lift the spray gun rod to spray, during use, it is still necessary to manually rotate the telescopic spray gun to adjust the spray direction. In long-term working scenarios, the wrist muscles are prone to fatigue, and long-term work can easily lead to wrist injuries.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a backpack electric sprayer to overcome the shortcomings in current practical applications. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a backpack electric sprayer, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A backpack-type electric sprayer includes an electric sprayer body, a base, a spray gun, and a water pipe. The base is fixedly installed at the lower end of the electric sprayer body. A water pump and a power supply are installed inside the base, and the power supply is electrically connected to the water pump. The water pump inlet is connected to the interior of the electric sprayer body through a hose, and the water pump outlet is connected to the spray gun through a water pipe. A fixing block is fixedly installed on the side wall of the electric sprayer body, and a slider is fixedly connected to the fixing block. A base is fixedly connected to the side wall of the slider, and a turntable is rotatably connected to the base. A first fixing plate is fixedly connected to the outer wall of the turntable, and a receiving plate is rotatably connected to the other end of the first fixing plate. Two locking blocks are fixedly connected to the receiving plate, and the two locking blocks fix the spray gun by mutual cooperation. A swinging component is also provided at the lower end of the receiving plate fixing block.

[0008] In a further technical solution, both the fixing block and the slider are C-shaped.

[0009] In a further technical solution, the fixing block is provided with a plurality of evenly distributed first threaded holes, and the slider is provided with a plurality of second threaded holes. When the slider needs to be fixed on the fixing block, a bolt is inserted between the second threaded hole and the corresponding first threaded hole.

[0010] In a further technical solution, the turntable 8 is provided with a plurality of evenly distributed first slots, and the base is provided with a second slot. When the first slot needs to be stationary relative to the base, a card head is inserted between the second slot and the corresponding first slot.

[0011] A further technical solution includes a first rotating plate, a sliding groove, a sliding rod, a return plate, a telescopic structure, and a motor; a sliding groove is provided on the receiving plate, the lower end of the first fixed plate is rotatably connected to the first rotating plate, the other end of the first rotating plate is fixedly connected to the sliding rod, and the sliding rod is slidably connected to the inner wall of the sliding groove; a return plate is also slidably connected to the outer wall of the first rotating plate; a motor is fixedly connected to the first fixed plate, the drive end of the motor is fixedly connected to the telescopic structure, and the other end of the telescopic structure is rotatably connected to the return plate.

[0012] A further technical solution involves a telescopic structure comprising a second rotating plate, threaded rods, and sleeves. The drive end of the motor is connected to the second rotating plate on both the rotating and molded plates, and the drive end of the motor is fixedly connected to the corresponding second rotating plate. The molded plate is rotatably connected to the corresponding second rotating plate. Threaded rods are fixedly connected to the ends of the two second rotating plates that are close to each other. The two threaded rods have threads in opposite directions, and sleeves are threaded onto the outer walls of the two threaded rods. In summary, this embodiment of the invention has the following advantages compared to the prior art:

[0013] 1. The height of the slider can be adjusted by sliding it along the fixed block. The slider is then fixed to the fixed block by inserting bolts between the second threaded hole and the corresponding first threaded hole. The turntable can rotate relative to the base to adjust the angle of the first fixed plate relative to the slider. The turntable is fixed by inserting a clip between the second slot and the corresponding first slot. The motor drives the telescopic structure to rotate. The telescopic structure then drives the return plate to slide along the outer wall of the first rotating plate while simultaneously causing the first rotating plate to swing. The first rotating plate then drives the slide rod to swing, which in turn drives the receiving plate to swing. Finally, the receiving plate drives the spray gun to swing through the clip, thereby automatically adjusting the spraying direction of the spray gun, effectively reducing the labor intensity of the wrist, and thus effectively preventing wrist injuries.

[0014] 2. Rotate the sleeve, and then the sleeve controls the two threaded rods to move closer or further apart. Then the threaded rods drive the second rotating plate to move closer or further apart, thereby adjusting the length of the telescopic structure, which in turn adjusts the swing amplitude of the first rotating plate, which in turn adjusts the swing amplitude of the receiving plate, and thus adjusts the swing amplitude of the spray gun.

[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0018] Figure 3 This is a three-dimensional structural diagram of some of the structures in this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the telescopic structure in this utility model.

[0020] In the diagram: 1. Main body of the electric sprayer; 2. Base; 3. Fixing block; 4. Slider; 5. First threaded hole; 6. Bolt; 7. Base; 8. Turntable; 9. First slot; 10. Clip; 11. Spray gun; 12. First fixing plate; 13. Receiving plate; 14. Clip; 15. Water pipe; 16. Swing assembly; 161. First rotating plate; 162. Slide groove; 163. Slide rod; 164. Reverse plate; 165. Telescopic structure; 1651. Second rotating plate; 1652. Threaded rod; 1653. Sleeve; 166. Motor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] like Figures 1-4 As shown, this utility model embodiment provides a backpack electric sprayer, including an electric sprayer body 1, a base 2, a spray gun 11, and a water pipe 15. The base 2 is fixedly installed at the lower end of the electric sprayer body 1. A water pump and a power supply are installed inside the base 2, and the power supply is electrically connected to the water pump. The water inlet of the water pump is connected to the inside of the electric sprayer body 1 through a hose, and the water outlet of the water pump is connected to the spray gun 11 through the water pipe 15. A fixing block 3 is fixedly installed on the side wall of the electric sprayer body 1. A slider 4 is fixedly connected to the top of the slide block 3. A base 7 is fixedly connected to the side wall of the slider 4. A turntable 8 is rotatably connected to the base 7. A first fixing plate 12 is fixedly connected to the outer wall of the turntable 8. A receiving plate 13 is rotatably connected to the other end of the first fixing plate 12. Two locking blocks 14 are fixedly connected to the receiving plate 13. The two locking blocks 14 fix the spray gun 11 by mutual cooperation. A swinging component 16 is provided at the lower end of the fixing block 3 of the receiving plate 13. The swinging component 16 is used to drive the receiving plate 13 to swing back and forth.

[0024] Understandably, the spray gun 11 is placed into the slots of the two clips 14, and then the two clips 14 are fixed to the receiving plate 13 by bolts 6, thereby fixing the spray gun 11.

[0025] Furthermore, both the fixing block 3 and the slider 4 are C-shaped.

[0026] Furthermore, the fixing block 3 has multiple evenly distributed first threaded holes 5, and the slider 4 has multiple second threaded holes (not marked in the figure). When the slider 4 needs to be fixed on the fixing block 3, a bolt 6 is inserted between the second threaded hole and the corresponding first threaded hole 5.

[0027] Furthermore, the turntable 8 has a plurality of evenly distributed first slots 9, and the base 7 has a second slot (not marked in the figure). When the first slot 9 needs to be stationary relative to the base 7, a card head 10 is inserted between the second slot and the corresponding first slot 9.

[0028] like Figure 3As shown, the swing assembly 16 includes a first rotating plate 161, a sliding groove 162, a sliding rod 163, a return plate 164, a telescopic structure 165, and a motor 166. The receiving plate 13 has a sliding groove 162. The lower end of the first fixed plate 12 is rotatably connected to the first rotating plate 161. The other end of the first rotating plate 161 is fixedly connected to the sliding rod 163, and the sliding rod 163 is slidably connected to the inner wall of the sliding groove 162. The outer wall of the first rotating plate 161 is also slidably connected to the return plate 164. The motor 166 is fixedly connected to the first fixed plate 12. The drive end of the motor 166 is fixedly connected to the telescopic structure 165, and the other end of the telescopic structure 165 is rotatably connected to the return plate 164.

[0029] In a specific application, the control motor 166 is started, and then the motor 166 drives the telescopic structure 165 to rotate. Then the telescopic structure 165 drives the return plate 164 to slide along the outer wall of the first rotating plate 161 while driving the first rotating plate 161 to swing. Then the first rotating plate 161 drives the slide rod 163 to swing, and then the slide rod 163 drives the receiving plate 13 to swing.

[0030] like Figure 4 As shown, the telescopic structure 165 includes a second rotating plate 1651, a threaded rod 1652, and a sleeve 1653; the driving end of the motor 166 is connected to the second rotating plate 1651 on both the molded plate 164 and the corresponding second rotating plate 1651, and the molded plate 164 is rotatably connected to the corresponding second rotating plate 1651. The ends of the two second rotating plates 1651 that are close to each other are fixedly connected to the threaded rod 1652. The two threaded rods 1652 have threads in opposite directions, and the sleeve 1653 is threadedly sleeved on the outer wall of the two threaded rods 1652.

[0031] In practical applications, when it is necessary to adjust the swing amplitude of the receiving plate 13, the sleeve 1653 is rotated, and then the sleeve 1653 controls the two threaded rods 1652 to move closer or further apart. After that, the threaded rods 1652 drive the second rotating plate 1651 to move closer or further apart, thereby adjusting the length of the telescopic structure 165, which in turn can adjust the swing amplitude of the first rotating plate 161, and thus adjust the swing amplitude of the receiving plate 13.

[0032] In this embodiment of the utility model, the height of the slider 4 can be adjusted by sliding the slider 4 along the fixed block 3. Then, the slider 4 is fixed to the fixed block 3 by inserting a bolt 6 between the second threaded hole and the corresponding first threaded hole 5. The turntable 8 can rotate relative to the base 7 to adjust the angle of the first fixed plate 12 relative to the slider 4. The turntable 8 is fixed by inserting a clip 10 between the second slot and the corresponding first slot 9. The motor 166 drives the telescopic structure 165 to rotate. Then, the telescopic structure 165 drives the return plate 164 to slide along the outer wall of the first rotating plate 161 while driving the first rotating plate 161 to swing. Then the first rotating plate 161... 61 drives the slide bar 163 to swing, then the slide bar 163 drives the receiving plate 13 to swing, and then the receiving plate 13 drives the spray gun 11 to swing through the locking block 14, thereby automatically adjusting the spraying direction of the spray gun 11, effectively reducing the labor intensity of the wrist, and thus effectively preventing wrist injury; rotate the sleeve 1653, and then the sleeve 1653 controls the two threaded rods 1652 to move closer or further apart, then the threaded rods 1652 drive the second rotating plate 1651 to move closer or further apart, thereby adjusting the length of the telescopic structure 165, thereby adjusting the swing amplitude of the first rotating plate 161, thereby adjusting the swing amplitude of the receiving plate 13, and thus adjusting the swing amplitude of the spray gun 11.

[0033] The working principle of this utility model is as follows: When the switch on the spray gun 11 is turned on, the water pump delivers the liquid medicine from the main body 1 of the electric sprayer to the spray gun 11 through the water pipe 15. The liquid medicine is then sprayed through the nozzle at the end of the spray gun 11. Next, the motor 166 drives the telescopic structure 165 to rotate. The telescopic structure 165 then drives the guide plate 164 to slide along the outer wall of the first rotating plate 161, simultaneously causing the first rotating plate 161 to swing. Then, the first rotating plate 161 drives the sliding rod 163 to swing. The sliding rod 163 then drives the receiving plate 13 to swing. Finally, the receiving plate 13, through the locking block 14, drives the spray gun 11 to swing, thereby automatically adjusting the spray gun 11. Spraying direction; when it is necessary to adjust the swing amplitude of the receiving plate 13, rotate the sleeve 1653, and then the sleeve 1653 controls the two threaded rods 1652 to move closer or further apart, and then the threaded rods 1652 drive the second rotating plate 1651 to move closer or further apart; in addition, control the slider 4 to slide along the fixed block 3, and then insert the bolt 6 between the second threaded hole and the corresponding first threaded hole 5, thereby fixing the slider 4 on the fixed block 3; the turntable 8 can rotate relative to the base 7, thereby adjusting the angle of the first fixed plate 12 relative to the slider 4, and then insert the clamp 10 between the second clamping slot and the corresponding first clamping slot 9 to fix the turntable 8.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A knapsack electric sprayer comprising an electric sprayer body (1), a base (2), a spray gun (11) and a water pipe (15), the lower end of the electric sprayer body (1) is fixedly provided with the base (2), the base (2) is provided with a water pump and a power supply, and the power supply is electrically connected with the water pump, the water inlet of the water pump is communicated with the inside of the electric sprayer body (1) through a hose, and the water outlet of the water pump is communicated with the spray gun (11) through the water pipe (15), characterized in that, The electric sprayer body (1) side wall is fixedly provided with a fixed block (3), the fixed block (3) is fixedly connected with a sliding block (4), the sliding block (4) side wall is fixedly connected with a base (7), the base (7) is rotatably connected with a rotating disc (8), the rotating disc (8) outer wall is fixedly connected with a first fixed plate (12), the first fixed plate (12) other end is rotatably connected with a supporting plate (13), the supporting plate (13) is fixedly connected with two clamping blocks (14), two clamping blocks (14) are fixedly connected with a spray gun (11) through mutual cooperation, and the supporting plate (13) fixed block (3) lower end is provided with a swing assembly (16) in cooperation.

2. The backpack electric sprayer of claim 1, wherein, The fixed block (3) and the sliding block (4) are both C-shaped.

3. The backpack electric sprayer of claim 2, wherein, A plurality of uniformly distributed first threaded holes (5) are formed in the fixed block (3), and a plurality of second threaded holes are formed in the sliding block (4), when the sliding block (4) needs to be fixed on the fixed block (3), bolts (6) are inserted between the second threaded holes and the corresponding first threaded holes (5).

4. The backpack electric sprayer of claim 1, wherein, A plurality of uniformly distributed first clamping grooves (9) are formed in the rotating disc (8), and a second clamping groove is formed in the base (7), when the first clamping groove (9) needs to be stationary relative to the base (7), a clamping head (10) is inserted between the second clamping groove and the corresponding first clamping groove (9).

5. The backpack electric sprayer of claim 1 wherein, The swing assembly (16) comprises a first rotating plate (161), a sliding groove (162), a sliding rod (163), a back-shaped plate (164), an extension structure (165) and a motor (166). A sliding groove (162) is formed in the supporting plate (13), a first rotating plate (161) is rotatably connected to the lower end of the first fixed plate (12), a sliding rod (163) is fixedly connected to the other end of the first rotating plate (161), and the sliding rod (163) is slidably connected with the inner wall of the sliding groove (162), a back-shaped plate (164) is also slidably connected with the outer wall of the first rotating plate (161), a motor (166) is fixedly connected to the first fixed plate (12), a drive end of the motor (166) is fixedly connected with an extension structure (165), and the other end of the extension structure (165) is rotatably connected with the back-shaped plate (164).

6. The backpack electric sprayer of claim 5 wherein, The extension structure (165) comprises a second rotating plate (1651), a threaded rod (1652) and a sleeve (1653). The drive end of the motor (166) and the back-shaped plate (164) are both connected with a second rotating plate (1651), the drive end of the motor (166) is fixedly connected with the corresponding second rotating plate (1651), the back-shaped plate (164) is rotatably connected with the corresponding second rotating plate (1651), the two second rotating plates (1651) are both fixedly connected with a threaded rod (1652) at the end close to each other, the two threaded rods (1652) have opposite threads, and a sleeve (1653) is threadedly sleeved on the outer wall of the two threaded rods (1652).

Citation Information

Patent Citations

  • Backpack type electric sprayer

    CN218635140U