Movable pesticide spraying device for hilly and mountainous areas

By adding support rods and casters to the bottom of the medicine tank, combined with a rotating rod assembly and a telescopic structure, the problem of high physical exertion in hilly and mountainous areas with backpack spraying devices has been solved, improving the work efficiency and comfort of operators.

CN223994268UActive Publication Date: 2026-03-17JIANGXI BOSI AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing backpack spraying devices require significant physical exertion from operators when used in hilly and mountainous areas, making it difficult for them to work for extended periods, thus affecting work efficiency and failing to meet the needs of spraying large areas of farmland.

Method used

A support rod and casters are added to the bottom of the medicine box. A vertical movable carrying strap assembly is adopted. The angle and height of the support rod are adjusted by rotating rod assembly and telescopic structure to isolate the bumps caused by terrain undulations and reduce the physical exertion and bumpy feeling of the operator.

Benefits of technology

The design of the support rods and casters reduces the physical exertion of the operators, improves their continuous working ability, enhances work efficiency, and reduces the impact of bumps on the operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pesticide spraying devices, and discloses a movable pesticide spraying device for hilly and mountainous areas, which comprises a pesticide box, a pesticide spraying mechanism and a pesticide pumping device in butt joint with the pesticide box, a strap component mounted on one side of the pesticide box, a bottom supporting table fixedly mounted at the bottom of the pesticide box, a connecting frame fixedly connected to the bottom of the bottom supporting table, and a supporting rod fixedly connected to the side wall of the connecting frame. Trundles are fixedly installed at the bottom ends of the supporting rods, the supporting rods are used for bearing and supporting the pesticide box, and the strap assembly is of a vertical movable structure and used for isolating bumping of the pesticide box under the bearing and supporting effects of the supporting rods and under the influence of topographic relief; the supporting rods and the trundles are additionally arranged at the bottom of the pesticide box of a traditional knapsack pesticide spraying device, the auxiliary bearing and supporting effect on the pesticide box can be achieved, and compared with the mode that an operator only uses a strap assembly to carry the pesticide box on the back in a traditional structure, the bearing burden can be greatly reduced when the operator works, physical output is reduced, and the labor intensity of the operator is lowered. Therefore, the operation continuity of operators can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, and more specifically to a mobile spraying device for hilly and mountainous areas. Background Technology

[0002] Mobile spraying equipment is a device that can move to different locations and perform spraying operations. Existing mobile spraying equipment can be divided into: backpack type, wheeled type, rail type, and vehicle-mounted type. When operating in hilly and mountainous areas, due to terrain limitations, backpack type is the most common. Backpack type mobile spraying equipment usually consists of: a medicine tank, a sprayer, and a carrying strap.

[0003] However, while existing backpack spraying devices are highly flexible, operators have to carry heavy equipment for long periods of time in mountainous areas, which is extremely physically demanding. This makes it difficult for operators to work for extended periods, affecting work efficiency and making it difficult to meet the needs of spraying large areas of farmland. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mobile spraying device for hilly and mountainous areas, so as to solve the problem that the traditional backpack mobile spraying device used in hilly and mountainous areas consumes a lot of physical strength and is difficult to meet the needs of long-term operation.

[0005] This utility model provides the following technical solution: a mobile spraying device for hilly and mountainous areas, including a medicine tank, a spraying mechanism and a pumping device connected to the medicine tank, a carrying strap assembly installed on one side of the medicine tank, a base platform fixedly installed at the bottom of the medicine tank, a connecting frame fixedly connected to the bottom of the base platform, a support rod fixedly connected to the side wall of the connecting frame, and casters fixedly installed at the bottom end of the support rod. The support rod is used to support the medicine tank under load. The carrying strap assembly adopts a vertical movable structure to isolate the medicine tank from the bumps caused by terrain undulations under the support of the support rod.

[0006] Furthermore, the connecting frame includes a frame body, a rotating rod assembly is fixedly connected to the inner wall of the frame body, and the support rod is fixedly connected to the side wall of the rotating rod assembly. The rotating rod assembly is used for adjusting the angle of the support rod.

[0007] Furthermore, the rotating rod assembly includes a main rod, a sleeve rotatably fitted onto the side wall of the main rod, a cylindrical space formed on the inner wall of the sleeve, a tubular block fixedly connected to the side wall of the main rod within the cylindrical space, a plurality of keyways formed on the side wall of the tubular block, and a through groove formed on the side wall of the sleeve extending into the cylindrical space, a key tooth mechanism installed within the through groove, the key tooth mechanism engaging with the keyway of the sleeve to achieve rotational locking of the sleeve on the side wall of the main rod, and a support rod fixedly connected to the bottom of the sleeve.

[0008] Furthermore, the key tooth mechanism includes a fixed box, the key tooth body is slidably sleeved on the inner wall of the fixed box, a top block is fixedly connected to the top of the fixed box, the top of the top block has a threaded hole that penetrates into the inner cavity of the fixed box, a screw is threaded in the threaded hole, the fixed box is fixedly connected to the inner wall of the sleeve through groove, and the bottom end of the screw is fixedly connected to the top of the key tooth body through a knob.

[0009] Furthermore, the support rod adopts a telescopic structure, so that the height of the caster at its bottom end can change accordingly after the angle of the support rod is adjusted.

[0010] Furthermore, the support rod includes an outer cylinder, an inner cylinder that is slidably sleeved on the inner wall of the outer cylinder, a threaded column provided in the inner cavity of the outer cylinder, a threaded cylinder fixedly connected to the inner wall of the inner cylinder, the threaded cylinder being threadedly sleeved on the side wall of the threaded column, and a rotary control mechanism also provided in the inner cavity of the threaded column, the output end of the rotary control mechanism being fixedly connected to the top end of the threaded column.

[0011] Furthermore, the inner wall of the outer cylinder is provided with vertical grooves, and the side wall of the inner cylinder is provided with strip-shaped sliders, which slide and engage within the vertical grooves of the inner wall of the outer cylinder.

[0012] Furthermore, the rotary control mechanism includes a rotary column and a fixed plate. The rotary column is rotatably sleeved in the inner cavity of the outer cylinder. The fixed plate is fixedly connected to the inner wall of the outer cylinder. An active bevel gear is fixedly connected to the side wall of the outer cylinder. A passive bevel gear meshes with the side wall of the active bevel gear. A rotary hole is provided in the middle of the fixed plate. A connecting column is rotatably sleeved in the rotary hole. An annular groove is opened on the side wall of the connecting column. The inner wall of the rotary hole of the fixed plate is embedded in the annular groove. The passive bevel gear is fixedly connected to the side wall of the connecting column. The bottom end of the connecting column is fixedly connected to the top end of the threaded column. One end of the rotary column extends through to the outside of the outer cylinder and is connected to a handle.

[0013] Furthermore, the shoulder strap assembly includes two vertical plates, each with a rail groove on one side, in which a sliding block is slidably connected. A back plate is fixedly connected to one side of each sliding block, and a shoulder strap body is provided on one side of the back plate.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This utility model adds support rods and casters to the bottom of the medicine box of a traditional backpack spraying device, which can provide auxiliary load-bearing support for the medicine box. Compared with the traditional structure where the operator only carries the medicine box on their back using a shoulder strap assembly, this can greatly reduce the load on the operator and reduce physical exertion, thereby enabling the operator to work more continuously and improving work efficiency.

[0016] In addition, the carrying strap assembly has been structurally improved by adopting a vertically movable structure. When the casters are rolling on the ground and are affected by the undulations of the ground, causing the medicine box to bounce up and down, the structural design of the carrying strap assembly can isolate the bumps and prevent them from affecting the operator's movement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the connecting frame structure in the diagram;

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the rotating rod assembly structure in the diagram;

[0020] Figure 4 This utility model Figure 2 A schematic diagram of the cross-sectional structure of the strut in the diagram;

[0021] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A;

[0022] Figure 6 This utility model Figure 1 A schematic diagram of the shoulder strap assembly structure.

[0023] The attached figures are labeled as follows: 1. Medicine box; 2. Base platform; 3. Connecting frame; 4. Support rod; 5. Caster; 6. Shoulder strap assembly; 31. Frame; 32. Rotating rod assembly; 321. Main rod; 322. Sleeve; 323. Tubular block; 324. Fixing box; 325. Main body of the support tooth; 326. Top block; 327. Screw; 41. Outer cylinder; 42. Inner cylinder; 43. Threaded cylinder; 44. Threaded column; 45. Rotation control mechanism; 451. Rotating column; 452. Active bevel gear; 453. Passive bevel gear; 454. Connecting column; 455. Fixing plate; 456. Handle; 61. Vertical plate; 62. Sliding block; 63. Back plate; 64. Shoulder strap main body. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] Reference Figure 1This utility model provides a mobile spraying device for hilly and mountainous areas, including a medicine tank 1. The medicine tank 1 is connected to a spraying mechanism and a pumping device. A shoulder strap assembly 6 is installed on one side of the medicine tank 1. A base platform 2 is fixedly installed at the bottom of the medicine tank 1. A connecting frame 3 is fixedly connected to the bottom of the base platform 2. A support rod 4 is fixedly connected to the side wall of the connecting frame 3. A caster 5 is fixedly installed at the bottom of the support rod 4. The support rod 4 is used to support the medicine tank 1. The shoulder strap assembly 6 adopts a vertical movable structure to isolate the medicine tank 1 from the bumps caused by the terrain undulations under the support of the support rod 4.

[0026] During use, the operator carries the medicine box 1 on their back using the shoulder strap assembly 6. Simultaneously, the support rod 4 and casters 5 make contact with the ground. Connected by the base platform 2 and connecting frame 3, the support rod 4 provides vertical support to the medicine box 1, thus distributing the load across the operator's back and reducing physical exertion. When moving the spraying equipment, the casters 5 roll on the ground to prevent any impact on movement. However, due to the uneven terrain of hilly areas, the casters 5 inevitably experience ups and downs as they roll, causing the medicine box 1 to sway due to the support rod 4. Therefore, the shoulder strap assembly 6 is designed as a vertically movable structure to prevent the swaying sensation from being transmitted to the operator.

[0027] Reference Figure 2 The connecting frame 3 includes a frame body 31, a rotating rod assembly 32 is fixedly connected to the inner wall of the frame body 31, and a support rod 4 is fixedly connected to the side wall of the rotating rod assembly 32. The rotating rod assembly 32 is used to adjust the angle of the support rod 4.

[0028] By setting the rotating rod assembly 32, the support angle of the support rod 4 can be flexibly adjusted, ensuring that the support rod 4 does not interfere with the operator's movement when used for support.

[0029] Reference Figure 3 The rotating rod assembly 32 includes a main rod 321, a sleeve 322 rotatably sleeved on the side wall of the main rod 321, a cylindrical space opened in the inner wall of the sleeve 322, a tubular block 323 fixedly connected to the side wall of the main rod 321 within the cylindrical space, a number of keyways opened in the side wall of the tubular block 323, a through groove opened in the side wall of the sleeve 322 extending into the cylindrical space, a key tooth mechanism installed in the through groove, the key tooth mechanism and the keyway of the sleeve 322 are connected to realize the rotational locking of the sleeve 322 on the side wall of the main rod 321, and a support rod 4 is fixedly connected to the bottom of the sleeve 322.

[0030] By connecting the sleeve 322 to the side wall of the main rod 321, the sleeve 322 can rotate on the side wall of the main rod 321. When the sleeve 322 rotates, the angle of the support rod 4 can be adjusted. After the angle of the support rod 4 is adjusted, it can be locked by connecting with a key tooth of the tubular block 323 through the key tooth mechanism. The position setting of the tubular block 323 can prevent the sleeve 322 from sliding axially on the side wall of the main rod 321.

[0031] Reference Figure 3 The key tooth mechanism includes a fixed box 324, a key tooth body 325 that is slidably sleeved on the inner wall of the fixed box 324, a top block 326 that is fixedly connected to the top of the fixed box 324, a threaded hole that penetrates into the inner cavity of the fixed box 324 on the top of the top block 326, a screw 327 that is threaded into the threaded hole, the fixed box 324 is fixedly connected to the inner wall of the through groove of the sleeve 322, and the bottom end of the screw 327 is fixedly connected to the top of the key tooth body 325 through a knob.

[0032] The screw 327 can be rotated vertically according to the characteristics of the thread structure. When the screw 327 drives the key tooth body 325 to move down into the cylindrical space of the sleeve 322 and embed it into the keyway of the tubular block 323, the sleeve 322 can be rotated and locked.

[0033] Reference Figure 1 The support rod 4 adopts a telescopic structure, and the height of its bottom caster 5 can change accordingly after the angle of the support rod 4 is adjusted.

[0034] To ensure that the caster 5 can contact the ground, the support rod 4 can be set to telescopic, so that the support rod 4 can provide support for the medicine box 1.

[0035] Reference Figure 4 The strut 4 includes an outer cylinder 41, an inner cylinder 42 that is slidably sleeved on the inner wall of the outer cylinder 41, a threaded post 44 that is provided in the inner cavity of the outer cylinder 41, a threaded cylinder 43 that is fixedly connected to the inner wall of the inner cylinder 42, the threaded cylinder 43 being threadedly sleeved on the side wall of the threaded post 44, and a rotary control mechanism 45 that is also provided in the inner cavity of the threaded post 44, the output end of the rotary control mechanism 45 being fixedly connected to the top end of the threaded post 44.

[0036] The rotation of the threaded column 44 is controlled by the rotary control mechanism 45. Under the action of the threaded engagement of the threaded cylinder 43 and the threaded column 44, the threaded cylinder 43 can be vertically displaced on the side wall of the threaded column 44, which in turn can drive the inner cylinder 42 to slide vertically in the inner cavity of the outer cylinder 41, thereby achieving the extension and retraction effect of the support rod 4. With this structural design, the passive contraction of the support rod 4 when it is under support force can be avoided.

[0037] Reference Figure 4 The inner wall of the outer cylinder 41 is provided with vertical grooves, and the side wall of the inner cylinder 42 is provided with strip-shaped sliders, which slide and engage within the vertical grooves on the inner wall of the outer cylinder 41.

[0038] This design prevents the threaded cylinder 43 from rotating due to friction, which would affect the sliding effect of the inner cylinder 42 within the inner cavity of the outer cylinder 41.

[0039] Reference Figure 5 The rotary control mechanism 45 includes a rotary column 451 and a fixed plate 455. The rotary column 451 is rotatably sleeved in the inner cavity of the outer cylinder 41. The fixed plate 455 is fixedly connected to the inner wall of the outer cylinder 41. A driving bevel gear 452 is fixedly connected to the side wall of the outer cylinder 41. A driven bevel gear 453 meshes with the side wall of the driving bevel gear 452. A rotary hole is provided in the middle of the fixed plate 455. A connecting column 454 is rotatably sleeved in the rotary hole. An annular groove is provided on the side wall of the connecting column 454. The inner wall of the rotary hole of the fixed plate 455 is embedded in the annular groove. The driven bevel gear 453 is fixedly connected to the side wall of the connecting column 454. The bottom end of the connecting column 454 is fixedly connected to the top end of the threaded column 44. One end of the rotary column 451 extends through to the outside of the outer cylinder 41 and is connected to a handle 456.

[0040] Rotating the handle 456 drives the rotating column 451 to rotate. Under the meshing action of the active bevel gear 452 and the passive bevel gear 453, the connecting column 454 can rotate. Through the connection between the connecting column 454 and the threaded column 44, the rotation control mechanism 45 can control the rotation of the threaded column 44. Through the connection characteristics between the connecting column 454 and the fixed plate 455, the connecting column 454 can be vertically positioned. On the one hand, it avoids the discontinuation of the meshing relationship between the passive bevel gear 453 and the active bevel gear 452, and on the other hand, it avoids vertical displacement of the threaded column 44.

[0041] Reference Figure 6 The shoulder strap assembly 6 includes two vertical plates 61, each with a rail groove on one side. A sliding block 62 is slidably connected in the rail groove. A back plate 63 is fixedly connected to one side of the two sliding blocks 62. A shoulder strap body 64 is provided on one side of the back plate 63.

[0042] When in use, the carrying strap 64 is worn on the operator's shoulders. When the medicine box 1 is bumped, the dynamic is first upward displacement, and then downward fall. During this process, through the connection between the vertical plate 61 and the sliding block 62, only the vertical plate 61 moves with the medicine box 1. The sliding block 62, the back plate 63, and the carrying strap 64 are carried by the operator and can remain stationary through their own weight and the friction between them and the operator. When the medicine box 1 falls downward, it is supported by the support rod 4. Thus, the carrying strap assembly 6 can greatly reduce the transmission of the bumpy feeling of the medicine box 1 to the person and improve comfort.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. This utility model is not limited to the above embodiments; the embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mobile pesticide spraying device for hilly and mountainous areas, comprising a pesticide box (1) which is connected with a pesticide spraying mechanism and a pesticide pumping device, and a shoulder strap assembly (6) is installed on one side of the pesticide box (1), characterized in that: The medicine box (1) bottom fixed mounting has bottom bolster (2), bottom bolster (2) bottom fixed connection has connecting frame (3), connecting frame (3) side wall fixed connection has strutting pole (4), strutting pole (4) bottom end fixed mounting has trundle (5), strutting pole (4) is used to the medicine box (1) bearing support, the harness assembly (6) adopts vertical movable structure, is used for isolating the medicine box (1) in strutting pole (4) bearing support under the influence of terrain undulation and the bumping that generates under the influence of terrain undulation.

2. The mobile pesticide spraying device for hilly areas according to claim 1, characterized in that: The connecting frame (3) includes a frame body (31), the inner wall of the frame body (31) is fixedly connected with a rotating rod assembly (32), the strutting pole (4) is fixedly connected with the rotating rod assembly (32) side wall, and the rotating rod assembly (32) is used for angle adjustment of the strutting pole (4).

3. The mobile pesticide spraying device for hilly areas according to claim 2, characterized in that: The rotating rod assembly (32) includes a main body rod (321), the side wall of the main body rod (321) is rotatably sleeved with a sleeve (322), the inner wall of the sleeve (322) is provided with a cylindrical space, the side wall of the main body rod (321) is fixedly connected with a tubular block (323) in the cylindrical space, a plurality of key grooves are formed in the side wall of the tubular block (323), the sleeve (322) is provided with a through slot penetrating into the cylindrical space, a key tooth mechanism is mounted in the through slot, the key tooth mechanism is connected with the key groove of the sleeve (322) to realize the rotation locking of the sleeve (322) on the side wall of the main body rod (321), and the strutting pole (4) is fixedly connected with the sleeve (322) bottom.

4. The mobile pesticide spraying device for hilly areas according to claim 3, characterized in that: The key tooth mechanism includes a fixed box (324), the inner wall of the fixed box (324) is slidably sleeved with a key tooth body (325), the top of the fixed box (324) is fixedly connected with a top block (326), the top of the top block (326) is provided with a threaded hole penetrating into the inner cavity of the fixed box (324), a screw rod (327) is threadedly sleeved in the threaded hole, the fixed box (324) is fixedly connected with the sleeve (322) through slot inner wall, and the bottom end of the screw rod (327) is fixedly connected with the top of the key tooth body (325) through a knob.

5. The mobile pesticide spraying device for hilly areas according to claim 3, characterized in that: The strutting pole (4) adopts a telescopic structure, and the height of the trundle (5) at the bottom end of the strutting pole (4) can be changed after the angle adjustment of the strutting pole (4).

6. The mobile pesticide spraying device for hilly areas according to claim 5, characterized in that: The strutting pole (4) includes an outer cylinder (41), the inner wall of the outer cylinder (41) is slidably sleeved with an inner cylinder (42), the inner cavity of the outer cylinder (41) is provided with a threaded column (44), the inner wall of the inner cylinder (42) is fixedly connected with a threaded cylinder (43), the threaded cylinder (43) is threadedly sleeved with the side wall of the threaded column (44), and the inner cavity of the threaded column (44) is further provided with a rotation control mechanism (45), and the output end of the rotation control mechanism (45) is fixedly connected with the top end of the threaded column (44).

7. The mobile pesticide spraying device for hilly areas according to claim 6, characterized in that: The inner wall of the outer cylinder (41) is provided with a vertical slot, and the side wall of the inner cylinder (42) is provided with a strip-shaped sliding block, which is slidably sleeved in the vertical slot of the inner wall of the outer cylinder (41).

8. The mobile pesticide spraying device for hilly areas according to claim 6, characterized in that: The rotation control mechanism (45) comprises a rotating column (451) and a fixed plate (455), the rotating column (451) is rotatably sleeved in the inner cavity of the outer cylinder (41), the fixed plate (455) is fixedly connected with the inner wall of the outer cylinder (41), the outer cylinder (41) is fixedly connected with a driving bevel gear (452) on the side wall, the side wall of the driving bevel gear (452) is engaged with a driven bevel gear (453), the middle part of the fixed plate (455) is provided with a rotating hole, a connecting column (454) is rotatably sleeved in the rotating hole, the side wall of the connecting column (454) is provided with an annular groove, the inner wall of the rotating hole of the fixed plate (455) is embedded in the annular groove, the driven bevel gear (453) is fixedly connected with the side wall of the connecting column (454), the bottom end of the connecting column (454) is fixedly connected with the top end of the threaded column (44), one end of the rotating column (451) penetrates through the outer cylinder (41) and is connected with a handle (456) outside the outer cylinder (41).

9. The mobile pesticide spraying device for hilly areas according to claim 1, characterized in that: The back strap assembly (6) comprises two vertical plates (61), the rail grooves are formed in one side of the two vertical plates (61), the sliding blocks (62) are sleeved in the rail grooves, the back plates (63) are fixedly connected with one side of the two sliding blocks (62), the back strap bodies (64) are arranged on one side of the back plates (63).