Pesticide spraying trolley

Abstract

The utility model discloses a pesticide spraying trolley, which belongs to the technical field of pesticide spraying equipment and comprises a walking frame, a pesticide barrel and a spraying rod, the pesticide barrel is fixedly mounted on the walking frame, a plurality of nozzles are arranged on the spraying rod, a mounting frame is fixedly arranged on the walking frame, the mounting frame is provided with a self-balancing hanging bin, and the spraying rod is rotatably mounted on the upper portion of the self-balancing hanging bin. A motor is installed in the self-balancing hanging bin, a transmission device is arranged between the motor and the spraying rod, the bottom of the spraying rod is connected with the pesticide barrel through a hose, the spraying rod is directly connected with the hose instead of a rotary connector and a sealing ring, and the problems that the rotary connector is complex in installation, large in needed space, high in cost, prone to aging and water leakage and the like are solved; when the spraying rod is driven by the motor to rotate, the hose can absorb torsional deformation at a certain angle, installation is convenient, cost can be reduced, the service life is prolonged, and reliability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pesticide spraying equipment technology, specifically relating to a pesticide spraying cart. Background Technology

[0002] Spraying pesticides in greenhouses is one of the most arduous and health-damaging tasks for vegetable farmers. To reduce harm to farmers, spraying machinery is now used. To ensure that the spraying machinery can reach between the rows and spray the pesticide onto the back of the leaves, farmers use a trolley that can enter the rows to spray. The invention patent CN110547279A, "Greenhouse Sprayer and Spraying Trolley," discloses a self-balancing device on the trolley. To keep the spray boom vertical under gravity, the self-balancing device can be hinged to the trolley support using either a shaft or a ball joint. Additionally, two spray booms can be installed, each equipped with a nozzle and capable of circumferential rotation to adjust the spraying direction.

[0003] However, in practical applications, it was found that due to the unevenness of the paths between the furrows, the trolley would sway from side to side during movement and tilt forward and backward when loading and unloading the mother trolley. Therefore, a ball joint structure is the best choice for the self-balancing device. However, the ball joints used in ball joints generally rely on sliding friction and are relatively tight in assembly. Since the self-balancing device itself is not very heavy, it is not flexible enough and the effect is not good. The center of gravity of the self-balancing device will also change due to adjustments in the length of the spray boom or the replacement of different battery models, which requires adjustments to the lifting point. In addition, because the installation space for the spray boom on the self-balancing device is limited, the strength of the lower part of the spray boom is insufficient when it is lengthened, especially when shaking, due to leverage. Furthermore, in general spraying devices, rotating parts usually use rotary joints with sealing rings, but these rotary joints have problems such as complex installation, large space occupation, high cost, and the sealing rings being prone to aging and leakage.

[0004] This application proposes a new solution to address the aforementioned problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a spraying cart in which the bottom of the spray bar does not require a rotary joint and a sealing ring, making installation convenient, reducing costs, and increasing service life and reliability.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A pesticide spraying cart includes: a walking frame, a pesticide tank, and a spray boom. The pesticide tank is fixedly installed on the walking frame. The spray boom is equipped with multiple nozzles. A mounting frame is fixedly installed on the walking frame. The mounting frame is equipped with a self-balancing chamber. The spray boom is rotatably installed on the upper part of the self-balancing chamber. A motor is installed inside the self-balancing chamber. A transmission device is provided between the motor and the spray boom. The bottom of the spray boom is connected to the pesticide tank through a flexible hose.

[0008] Furthermore, a support rod is fixedly installed on the upper part of the self-balancing pod, and a support plate is connected to the top of the support rod. The spray bar is rotatably installed on the end of the support plate.

[0009] Furthermore, bushing seats and bushings are installed between the spray bar and the self-balancing pod, as well as between the spray bar and the support plate.

[0010] Furthermore, the self-balancing pod includes a pod body, and a connecting rod, a bearing, and a lifting ring are provided between the pod body and the mounting frame. The connecting rod is arranged in the front-to-back direction, and the connecting rod is rotatably connected to the crossbeam of the mounting frame through the bearing. The crossbeam is arranged in the left-to-right direction, and the lifting ring is connected between the end of the connecting rod and the upper end plate of the pod body.

[0011] Furthermore, the upper end plate of the pod body is provided with a slide rail, and a slider is slidably installed in the slide rail. The slider is connected to the lower part of the lifting ring, and the slider is locked to the slide rail by bolts.

[0012] Furthermore, a water pump is installed on the hose between the spray bar and the medicine tank.

[0013] Furthermore, there are two spray bars, and the other end of the hoses connected to the two spray bars are respectively connected to two connectors of the four-way connector. The other two connectors of the four-way connector are respectively connected to the medicine tank through branch hoses, and the water pump is installed on both branch hoses.

[0014] Furthermore, the self-balancing pod is also equipped with two transmission gears, which mesh sequentially between the rotating gears of the two spray bars, and the motor is connected to one of the transmission gears.

[0015] Furthermore, a universal tube is provided at the lower part of the spray bar, one end of which is connected to the internal pipe of the spray bar, and the other end is provided with a nozzle.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are:

[0017] The spraying cart disclosed in this utility model connects the bottom of the spray bar to the medicine tank via a flexible hose instead of using a rotary joint and sealing ring. This avoids the problems of complex installation, large space requirement, high cost, and easy aging and leakage associated with installing a rotary joint. When the spray bar is driven to rotate by the motor, the flexible hose can absorb a certain angle of torsional deformation, making installation convenient, reducing costs, increasing service life and reliability.

[0018] In this invention, the support rod and support plate work together to fix the spray bar, enhance the strength of the lower part of the spray bar when it shakes, and prevent damage.

[0019] In this invention, a slide rail and a slider are connected between the upper end plate of the pod body and the lower part of the lifting ring. The slider is locked to the slide rail by bolts, which facilitates the adjustment of the position of the lifting ring to adapt to changes in the center of gravity when changing spray bars of different lengths or batteries of different models, ensuring that the spray bar is always in a vertical position.

[0020] In this invention, there are two spray booms, and their hoses are connected to two water pumps through a four-way connector. Depending on the crop height, only one water pump can be turned on or both water pumps can be turned on at the same time, so as to ensure that the liquid has sufficient spraying pressure while reducing energy consumption. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the spraying cart of this utility model;

[0022] Figure 2 This is a structural schematic diagram of a self-balancing pod;

[0023] Figure 3 This is a schematic diagram of the connection structure between the pod body and the traveling frame;

[0024] In the diagram, 1-walking frame, 11-medicine tank, 12-handle, 13-water inlet, 2-spray bar, 21-universal hose, 22-soft hose, 23-four-way connector, 24-branch hose, 25-water pump, 3-support rod, 31-support plate, 32-shaft sleeve seat, 4-hoisting pod body, 41-motor, 42-transmission gear, 43-rotating gear, 5-mounting bracket, 51-connecting rod, 52-bearing, 53-lifting ring, 54-slider, 55-slide rail. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the textual part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0026] like Figure 1As shown, a pesticide spraying cart includes a walking frame 1, a pesticide tank 11, and a spray boom 2. The spray boom 2 is equipped with multiple nozzles. The pesticide tank 11 is fixedly mounted on the walking frame 1, and its upper end has a handle 12 and a funnel-shaped water inlet 13. A mounting frame 5 is fixedly mounted on the walking frame 1, and a self-balancing hopper 4 is mounted on the mounting frame 5. The spray boom 2 is rotatably mounted on the upper part of the self-balancing hopper 4. A motor 41 is installed inside the self-balancing hopper 4, and a transmission device is provided between the motor 41 and the spray boom 2 to transmit the torque output by the motor 41 to the spray boom 2.

[0027] The spray boom 2 can be rotated to spray the pesticide solution onto crops in all directions as needed. The bottom of the spray boom 2 is connected to the pesticide tank 11 through a hose 22 for delivering the pesticide solution. When the spray boom 2 rotates, the hose 22 can absorb a certain angle of torsional deformation, making installation convenient, reducing costs, avoiding the problem of easy aging and leakage of the rotary joint, increasing service life and reliability, and facilitating replacement.

[0028] like Figure 2 As shown, a support rod 3 is fixedly installed on the upper part of the self-balancing pod. A support plate 31 is connected to the top of the support rod 3. The spray bar 2 is rotatably mounted on the end of the support plate 31. The support rod 3 and the support plate 31 can fix the spray bar 2, enhance the strength of the lower part of the spray bar 2 when shaking, and prevent damage. A bushing seat 32 and a bushing (not shown in the figure) are installed between the spray bar 2 and the self-balancing pod, and between the spray bar 2 and the support plate 31, to prevent long-term friction and wear between the spray bar 2 and the self-balancing pod and the support plate 31 when the spray bar 2 rotates, which would reduce the fixing strength.

[0029] like Figure 3 As shown, the mounting frame 5 has a "gate-shaped" structure, and the self-balancing pod is installed on the crossbeam of the mounting frame 5, which is set along the left and right direction. When the traveling frame 1 sways due to uneven road surface or the upper and lower mother car swaying left and right or back and forth, the self-balancing pod can reduce the swaying amplitude of the spray boom 2 and quickly restore it to a vertical state, avoiding collisions.

[0030] Specifically, in combination Figure 1 and Figure 3 The self-balancing gondola includes a gondola body 4. A connecting rod 51, a bearing 52, and a lifting ring 53 are provided between the gondola body 4 and the mounting frame 5. The connecting rod 51 is arranged in the front-to-back direction and is rotatably connected to the crossbeam of the mounting frame 5 via the bearing 52. The lifting ring 53 is connected between the end of the connecting rod 51 and the upper end plate of the gondola body 4. The bearing 52 provides cushioning for left-to-right swaying, and the lifting ring 53 provides cushioning for front-to-back swaying. Furthermore, in this application, the engagement positions of the end of the connecting rod 51 and the upper end plate of the gondola body 4 with the lifting ring 53 are either annular or semi-annular, respectively. The combination of the lifting ring 53 and the bearing 52 provides excellent cushioning, reducing the swaying amplitude of the spray boom 2.

[0031] In a further preferred embodiment, the upper end plate of the pod body 4 is provided with a slide rail 55, and a slider 54 is slidably installed inside the slide rail 55. The slider 54 is connected to the lower part of the lifting ring 53, and the slider 54 is locked to the slide rail 55 by bolts. This facilitates the adjustment of the position of the lifting ring 53 to accommodate changes in the center of gravity when changing spray booms 2 of different lengths or batteries of different models, ensuring that the spray boom 2 is always in a vertical position.

[0032] In this application, the spray bar 2 is located at the front of the pod body 4. Figure 1 (Located on the left side), to balance the weight of the spray boom 2, a battery (not shown in the figure) that provides power to the electrical components on the trolley is fixed to the rear of the pod body 4. Figure 1 (Right side position) To balance the center of gravity, slide rail 55 is set along the front-to-back direction, and the position of lifting ring 53 is also adjusted along the front-to-back direction.

[0033] like Figure 2 As shown, to improve spraying efficiency, two spray booms 2 are provided, enabling simultaneous spraying of crops on both sides of the traveling frame 1. A water pump 25 is installed on the hose 22 connecting the spray boom 2 and the pesticide tank 11, providing power for the pesticide solution. The other end of the hose 22 connecting the two spray booms 2 is connected to two connectors of a four-way connector 23. The other two connectors of the four-way connector 23 are connected to the pesticide tank 11 via branch hoses 24. Each branch hose 24 is equipped with a water pump 25, meaning there are two water pumps 25. Even when only one water pump 25 is activated, both spray booms 2 will spray simultaneously. When the crops are young and low, only one water pump 25 needs to be activated; when the crops are taller and the spray booms 2 are also taller, both water pumps 25 can be activated simultaneously to ensure sufficient spray pressure for the pesticide solution at the top of the spray booms 2.

[0034] like Figure 1 and Figure 2 As described above, the transmission device is specifically a gear transmission structure, including two rotating gears 43 and two transmission gears 42 disposed inside the pod body 4. The two rotating gears 43 are coaxially mounted on the two spray bars 2 respectively, and the two transmission gears 42 are sequentially meshed between the rotating gears 43 of the two spray bars 2. The motor 41 is connected to one of the transmission gears 42, and the rotation of the motor 41 is transmitted to the rotating gear 43 through the transmission gear 42, thereby driving the spray bar 2 to rotate.

[0035] Since this application uses four gears in total, one of which, the transmission gear 42, is driven by the motor 41. The torque transmitted to the two rotating gears 43 causes the two spray bars 2 to rotate in opposite directions, facilitating the synchronous control of the spray angles on both sides. The motor 41 can directly drive one of the transmission gears 42, or it can add another gear to indirectly drive the transmission gear 42. This application uses the direct drive of the motor 41 by connecting its output shaft to the drive gear as an example.

[0036] Furthermore, a universal tube 21 is provided at the lower part of the spray bar 2. One end of the universal tube 21 is connected to the internal pipe of the spray bar 2, and the other end is provided with a nozzle. By adjusting the universal tube 21, the nozzle can spray the crop roots or the back of the leaves.

[0037] This utility model's spraying cart delivers liquid medicine by connecting the bottom of the spray bar to the medicine tank via a flexible hose. When the motor drives the spray bar to rotate, the hose can absorb a certain angle of torsional deformation. It is easy to install, reduces costs, avoids the problem of easy aging and leakage of rotary joints, increases service life and reliability, and is easy to replace.

[0038] In the description of this specification, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this specification, unless otherwise expressly defined, the terms "setup", "installation", "connection", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0040] While specific embodiments of this utility model have been described above, those skilled in the art should understand that the described embodiments are merely some, not all, embodiments of this utility model. These are merely illustrative examples, and the scope of protection of this utility model is defined by the claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model and without any inventive effort, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A spraying cart, comprising: The vehicle comprises a walking frame, a medicine tank, and a spray boom, wherein the medicine tank is fixedly mounted on the walking frame, and the spray boom is equipped with multiple nozzles. A mounting frame is fixedly installed on the walking frame. The mounting frame is equipped with a self-balancing pod. The spray bar is rotatably installed on the upper part of the self-balancing pod. A motor is installed inside the self-balancing pod. A transmission device is provided between the motor and the spray bar. The bottom of the spray bar is connected to the medicine tank through a flexible hose.

2. The spraying cart according to claim 1, characterized in that, A support rod is fixedly installed on the upper part of the self-balancing pod, and a support plate is connected to the top of the support rod. The spray bar is rotatably installed on the end of the support plate.

3. The spraying cart according to claim 2, characterized in that, A bushing seat and a bushing are installed between the spray bar and the self-balancing pod, as well as between the spray bar and the support plate.

4. The spraying cart according to claim 1, characterized in that, The self-balancing pod includes a pod body, and a connecting rod, a bearing, and a lifting ring are provided between the pod body and the mounting frame. The connecting rod is arranged in the front-to-back direction, and the connecting rod is rotatably connected to the crossbeam of the mounting frame through the bearing. The crossbeam is arranged in the left-to-right direction, and the lifting ring is connected between the end of the connecting rod and the upper end plate of the pod body.

5. The spraying cart according to claim 4, characterized in that, The upper end plate of the pod body is provided with a slide rail, and a slider is slidably installed in the slide rail. The slider is connected to the lower part of the lifting ring and is locked to the slide rail by bolts.

6. The spraying cart according to any one of claims 1 to 5, characterized in that, A water pump is installed on the hose between the spray bar and the medicine tank.

7. The spraying cart according to claim 6, characterized in that, The spray bar is provided in two parts, and the other end of the hose connected to the two spray bars is respectively connected to the two connectors of the four-way connector. The other two connectors of the four-way connector are respectively connected to the medicine tank through branch hoses. The water pump is provided on both branch hoses.

8. The spraying cart according to claim 7, characterized in that, The transmission device includes two rotating gears and two transmission gears disposed within the self-balancing pod. The two rotating gears are coaxially mounted on the two spray bars, and the two transmission gears are sequentially meshed between the two rotating gears. The motor is connected to one of the transmission gears.

9. The spraying cart according to claim 6, characterized in that, The lower part of the spray bar is provided with a universal tube, one end of which is connected to the internal pipe of the spray bar, and the other end is provided with a nozzle.

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