Spraying structure and spraying device for agriculture and forestry plant planting greenhouse

Abstract

The utility model discloses a spraying structure and a spraying device for an agriculture and forestry plant planting greenhouse, relates to the field of spraying devices, and aims to solve the problems that a spraying device in an existing agriculture and forestry plant planting greenhouse is poor in flexibility, spraying blind areas easily appear in the middle and later periods of crop growth, and part of crops cannot grow ideally. The spraying structure comprises a liquid inlet pipe, a water pipe rotating connector, a connecting pipe, a flow dividing pipe and a plurality of variable-angle spraying heads, the spraying device comprises a supporting unit, a sliding unit, a rotating unit and the spraying structure, and the spraying device is mainly used for spraying land-planted crops or frame-planted crops in an agricultural greenhouse.

Description

Technical Field

[0001] The utility model relates to the field of spraying devices, in particular to a spraying structure and a spraying device for a greenhouse for planting agricultural and forestry plants. Background Art

[0002] The technology of greenhouses for planting agricultural and forestry plants refers to providing a more suitable growth environment for agricultural products during the planting process, so that they can be protected from the influence of harsh external environments and can be planted even in off-seasons or bad weather with objective yields. The existing spraying equipment used in the process of greenhouse planting is still the traditional fixed spraying structure. By setting multiple spraying points in the greenhouse, the crops in the greenhouse are sprayed regularly and quantitatively. The disadvantage of this spraying device is that as the crops grow and their stems and leaves become increasingly lush, there will be occlusion between adjacent crops. The poor flexibility of fixed-point spraying will lead to spraying blind areas in the middle and late stages of plant growth, causing some crops to not be fully nourished by the nutrient solution and resulting in unsatisfactory growth. Therefore, it is very practical to develop a spraying device for agricultural greenhouses with high flexibility. Summary of the Utility Model

[0003] The utility model aims to solve the problem that the spraying device in the existing agricultural greenhouse has poor flexibility and is prone to spraying blind areas in the middle and late stages of crop growth, resulting in unsatisfactory growth of some crops, and further provides a spraying structure and a spraying device for a greenhouse for planting agricultural and forestry plants;

[0004] A spraying structure for a greenhouse for planting agricultural and forestry plants, the spraying structure includes a liquid inlet pipe, a water pipe rotary joint, a connecting pipe, a shunt pipe and a plurality of variable-angle spray heads. One end of the liquid inlet pipe is communicated with the liquid outlet end of an external spraying water tank, and the other end of the liquid inlet pipe is rotationally communicated with one end of the connecting pipe through the water pipe rotary joint. The other end of the connecting pipe is inserted into the liquid inlet end of the shunt pipe and communicated with the shunt pipe. A plurality of variable-angle spray heads are arranged at equal intervals in sequence along the length extension direction of the shunt pipe, and each variable-angle spray head is communicated with one liquid outlet end on the shunt pipe;

[0005] Further, the variable-angle spray head includes a communicating pipe, a threaded joint, a shape memory alloy corrugated pipe and a high-pressure spray head. One end of the communicating pipe is communicated with one liquid outlet end on the shunt pipe, the outer circumferential surface of the other end of the communicating pipe is processed with an external thread, one end of the threaded joint is sleeved on the other end of the communicating pipe, and the threaded joint is detachably connected with the communicating pipe in a threaded manner. One end of the shape memory alloy corrugated pipe is communicated with the other end of the threaded joint, and the high-pressure spray head is installed on the other end of the shape memory alloy corrugated pipe and communicated with the shape memory alloy corrugated pipe;

[0006] A spraying device for an agricultural and forestry plant planting greenhouse. The spraying device is installed inside the agricultural greenhouse. The spraying device includes a spraying structure, a support unit, a sliding unit and a rotating unit. The support unit includes two support components. The two support components are arranged oppositely at both ends of the agricultural greenhouse, and each support component is fixed to the ground inside the agricultural greenhouse by a pre-buried pin. The sliding unit is arranged between the two support components, and the sliding unit is located above the two support components and is arranged parallel to the ground inside the agricultural greenhouse. The two ends of the sliding unit are respectively detachably connected to the top of a support component, and the sliding part of the sliding unit faces the ground inside the agricultural greenhouse. The rotating unit is arranged on the sliding part of the sliding unit and is detachably connected to the sliding part of the sliding unit. The spraying structure is installed on the rotating end of the rotating unit and is communicated with an external spraying water tank;

[0007] Further, the support component is an L-shaped frame body. The horizontal part of the support component is fixed to the ground inside the agricultural greenhouse by a pre-buried pin. The sliding unit is detachably connected to the upper part of the vertical part of the support component. A support rib plate is arranged between the horizontal part and the vertical part of the support component. One side of the support rib plate is fixedly connected to the vertical part of the support component, and the bottom of the support rib plate is fixedly connected to the horizontal part of the support component;

[0008] Further, the sliding unit includes a lead screw slider, a mounting plate, a power motor, a transmission component, a lead screw and two optical bars. At both ends of the bottom of the mounting plate, a connecting ear plate extending downward is respectively arranged, and the two connecting ear plates are arranged oppositely. The lead screw is arranged between the two connecting ear plates, and both ends of the lead screw respectively pass through the connecting ear plate where they are located and extend to the outside of the connecting ear plate where they are located. The lead screw is rotatably connected to the two connecting ear plates through two rotating bearings. The two optical bars are arranged relatively parallel to both sides of the lead screw, and one end of each optical bar is fixedly connected to the corresponding connecting ear plate. The lead screw slider is installed on the lead screw and the two optical bars, and the lead screw slider is threadedly connected to the lead screw and slidably connected to the two optical bars. The power motor is installed on the top of the mounting plate through a motor bracket. The transmission component is arranged on the power output end of the power motor, and one end of the transmission component is sleeved on the motor output shaft of the power motor, and the other end of the transmission component is sleeved on one end of the lead screw. The power motor, as a power element, drives the lead screw to rotate through the transmission component;

[0009] Further, the transmission component includes a driving pulley, a driven pulley and a transmission belt. The driving pulley is sleeved on the motor output shaft of the power motor. The driven pulley is sleeved on one end of the lead screw. The transmission belt is sleeved on the driving pulley and the driven pulley. The driving pulley drives the driven pulley to rotate synchronously through the transmission belt:

[0010] Further, the rotating unit includes a rotating motor and a rotating transmission mechanism. The rotating motor is inverted at the bottom of the lead screw slider and is detachably connected to the lead screw slider through a motor mounting seat. The power output shaft of the rotating motor is arranged vertically downward. The spraying structure is installed on the power output shaft of the rotating motor through the rotating transmission mechanism, and the rotating motor, as the power source, drives the spraying structure to rotate synchronously through the rotating transmission mechanism;

[0011] Further, the transmission mechanism includes a housing, a first support bearing, a driving bevel gear, a transmission bevel gear, a fixed shaft, a driven bevel gear and a second support bearing. The housing is arranged below the rotating motor. The power output shaft of the rotating motor passes through the top of the housing and is inserted into the driving bevel gear located inside the housing. The power output shaft of the rotating motor is rotationally connected to the housing through the first support bearing. One end of the fixed shaft is fixed on the inner wall of one side of the housing. The transmission bevel gear is sleeved on the other end of the fixed shaft, and the transmission bevel gear is rotationally connected to the fixed shaft through a bearing. The transmission bevel gear is arranged in meshing engagement with the driving bevel gear. The connecting pipe in the spraying structure passes through the bottom of the housing and is inserted into the driven bevel gear located inside the housing. The connecting pipe is rotationally connected to the housing through the second support bearing. The driven bevel gear is located directly below the driving bevel gear and is coaxially corresponding to the driving bevel gear. The driven bevel gear is arranged in meshing engagement with the transmission bevel gear. The driving bevel gear drives the driven bevel gear to rotate synchronously through the transmission bevel gear. One end of the liquid inlet pipe is communicated with the liquid outlet end of an external spraying water tank, and the other end of the liquid inlet pipe passes through the side wall of the housing and is rotationally communicated with the top end of the connecting pipe through a water pipe rotary joint;

[0012] Further, buckles are arranged on both sides of the housing;

[0013] Further, two side hook plates are arranged at the bottom of the lead screw slider. The two side hook plates are oppositely arranged on both sides of the rotating motor, and the top of each side hook plate is fixedly connected to the bottom of the lead screw slider. The bottom of each side hook plate extends to the bottom of the housing and supports the bottom of the housing;

[0014] The beneficial effects of the present application compared with the prior art:

[0015] A spraying structure for an agricultural and forestry plant planting greenhouse provided by the present application is provided with a shape memory alloy corrugated pipe between the spray head and the shunt pipe compared with the traditional spraying structure. By utilizing the characteristics of the shape memory alloy, the working angle of the spray head can be adjusted according to the growth changes of plants, so as to improve the flexibility and adaptability of the spraying structure.

[0016] A spraying device for an agricultural and forestry plant cultivation greenhouse provided by the present application, compared with the traditional fixed-point spraying device, constructs a mobile spraying device based on the internal structure of the greenhouse. Among them, a sliding frame body arranged along the length extension direction of the greenhouse is used as a guiding and supporting device to drive the entire spraying structure to move horizontally. Such a design can realize the spraying work on the crops in the entire greenhouse only through a single spraying device. Compared with the traditional multi-point positioning spraying device, the pipeline construction is simpler, and the working range of the spraying structure is more comprehensive, and the flexibility and adaptability are also stronger. On this basis, the spraying device in the present application also adds a rotational degree of freedom to the spraying structure, enabling the spraying structure to perform rotational spraying or rotational spraying during horizontal movement. This design takes into account that there are many types of crops in the greenhouse, some are directly planted on the ground, and some need to be planted through a frame. In this case, it is difficult to meet the demand for comprehensive spraying of the crops on the frame only by using the traditional spraying method. After adding the rotational movement, the crops on the side of the frame can be sprayed during the rotation of the spraying structure, improving the working range of the spraying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view schematic diagram of the spraying structure described in the present application;

[0018] Figure 2 is Figure 1 the partial enlarged view at B in

[0019] Figure 3 is the front view schematic diagram of the rotation unit and the spraying structure in the spraying device described in the present application;

[0020] Figure 4 is the side view schematic diagram of the rotation unit and the spraying structure in the spraying device described in the present application;

[0021] Figure 5 is Figure 4 the schematic diagram in the A-A direction in

[0022] Figure 6 is the composition schematic diagram of the rotation transmission structure in the spraying device described in the present application;

[0023] Figure 7 is the front view schematic diagram of the guide rail part of the sliding unit in the spraying device described in the present application;

[0024] Figure 8 is the bottom view schematic diagram of the guide rail part of the sliding unit in the spraying device described in the present application;

[0025] Figure 9 is the connection schematic diagram of the sliding unit, the rotation unit and the spraying structure in the spraying device described in the present application;

[0026] Figure 10 Front view schematic diagram of the spray device described in this application;

[0027] In the figure, 1 is the liquid inlet pipe, 2 is the water pipe rotary joint, 3 is the connecting pipe, 4 is the shunt pipe, 5 is the variable-angle spray head, 51 is the connecting pipe, 52 is the threaded joint, 53 is the shape memory alloy corrugated pipe, 54 is the high-pressure spray head, 6 is the rotary motor, 7 is the rotary transmission mechanism, 71 is the housing, 72 is the first support bearing, 73 is the driving bevel gear, 74 is the driven bevel gear, 75 is the fixed shaft, 76 is the driven bevel gear, 77 is the second support bearing, 8 is the motor mounting seat, 9 is the lead screw slider, 10 is the side hook plate, 11 is the mounting plate, 12 is the power motor, 13 is the transmission component, 14 is the lead screw, 15 is the optical bar, 16 is the support component, and 17 is the support rib. Detailed implementation manners

[0028] Detailed implementation manner one: Combining Figures 1 to 10 To illustrate this implementation manner, a spray structure for an agricultural and forestry plant planting greenhouse is provided in this implementation manner. The spray structure includes a liquid inlet pipe 1, a water pipe rotary joint 2, a connecting pipe 3, a shunt pipe 4, and a plurality of variable-angle spray heads 5. One end of the liquid inlet pipe 1 is communicated with the liquid outlet end of an external spray water tank, and the other end of the liquid inlet pipe 1 is rotatably communicated with one end of the connecting pipe 3 through the water pipe rotary joint 2. The other end of the connecting pipe 3 is inserted into the liquid inlet end of the shunt pipe 4 and communicated with the shunt pipe 4. The plurality of variable-angle spray heads 5 are arranged at equal intervals in sequence along the length extension direction of the shunt pipe 4, and each variable-angle spray head 5 is communicated with one liquid outlet end on the shunt pipe 4.

[0029] Detailed implementation manner two: Combining Figures 1 to 10 To illustrate this implementation manner, the difference between this implementation manner and the first detailed implementation manner is that the variable-angle spray head 5 includes a connecting pipe 51, a threaded joint 52, a shape memory alloy corrugated pipe 53, and a high-pressure spray head 54. One end of the connecting pipe 51 is communicated with one liquid outlet end on the shunt pipe 4. The outer circumference of the other end of the connecting pipe 51 is processed with an external thread. One end of the threaded joint 52 is sleeved on the other end of the connecting pipe 51, and the threaded joint 52 is detachably connected to the connecting pipe 51 by threads. One end of the shape memory alloy corrugated pipe 53 is communicated with the other end of the threaded joint 52. The high-pressure spray head 54 is installed on the other end of the shape memory alloy corrugated pipe 53, and the high-pressure spray head 54 is communicated with the shape memory alloy corrugated pipe 53. Other compositions and connection methods are the same as those in the first detailed implementation manner.

[0030] Combining the first detailed implementation manner to the second detailed implementation manner, this application provides a spray structure for an agricultural and forestry plant planting greenhouse, in which a shape memory alloy corrugated pipe is provided between the spray head and the shunt pipe. By utilizing the characteristics of the shape memory alloy, the working angle of the spray head can be adjusted according to the growth changes of plants, so as to improve the flexibility and adaptability of the spray structure.

[0031] Embodiment 3: Combined with Figures 1 to 10 Describe this embodiment. This embodiment provides a spraying device for an agricultural and forestry plant planting greenhouse. The spraying device is installed in the agricultural greenhouse. The spraying device includes a spraying structure, a supporting unit, a sliding unit, and a rotating unit. The supporting unit includes two supporting components 16. The two supporting components 16 are oppositely arranged at both ends of the agricultural greenhouse, and each supporting component 16 is fixed to the ground in the agricultural greenhouse by a buried pin. The sliding unit is arranged between the two supporting components 16, and the sliding unit is located above the two supporting components 16 and is arranged parallel to the ground in the agricultural greenhouse. The two ends of the sliding unit are respectively detachably connected to the top of a supporting component 16, and the sliding part of the sliding unit faces the ground in the agricultural greenhouse. The rotating unit is arranged on the sliding part of the sliding unit and is detachably connected to the sliding part of the sliding unit. The spraying structure is installed on the rotating end of the rotating unit and is communicated with an external spraying water tank.

[0032] This embodiment provides a spraying device for an agricultural and forestry plant planting greenhouse. Compared with the traditional fixed-point spraying device, it increases the horizontal mobility and axial rotation, improves the flexibility of the spraying work, expands the working range of the spraying device, enables a single spraying structure arranged in the greenhouse to meet the requirements of the spraying operation in the entire greenhouse, and this design can also improve the versatility of the spraying device. Horizontal moving spraying can perform comprehensive spraying work on ground-planted crops, and horizontal moving spraying combined with rotating spraying can perform comprehensive spraying work on rack-planted crops.

[0033] Embodiment 4: Combined with Figures 1 to 10 Describe this embodiment. The difference between this embodiment and Embodiment 3 is that the supporting component 16 is an L-shaped frame body. The horizontal part of the supporting component 16 is fixed to the ground in the agricultural greenhouse by a buried pin. The sliding unit is detachably connected to the upper part of the vertical part of the supporting component 16. A supporting rib plate 17 is arranged between the horizontal part and the vertical part of the supporting component 16. One side of the supporting rib plate 17 is fixedly connected to the vertical part of the supporting component 16, and the bottom of the supporting rib plate 17 is fixedly connected to the horizontal part of the supporting component 16. Other compositions and connection methods are the same as those in Embodiment 3.

[0034] In this embodiment, the supporting component 16 mainly plays a supporting role to ensure the stability of the spraying structure during operation. There can be multiple supporting rib plates 17 to improve the supporting strength of the supporting component 16.

[0035] Embodiment 5: Combined with Figures 1 to 10To describe this embodiment, the difference between this embodiment and the third specific embodiment is that the sliding unit includes a lead screw slider 9, a mounting plate 11, a power motor 12, a transmission component 13, a lead screw 14, and two optical bars 15. At both ends of the bottom of the mounting plate 11, there is a connecting ear plate extending downward, and the two connecting ear plates are arranged oppositely. The lead screw 14 is arranged between the two connecting ear plates, and both ends of the lead screw pass through the corresponding connecting ear plates and extend to the outside of the connecting ear plates. The lead screw 14 is rotatably connected to the two connecting ear plates through two rotating bearings. The two optical bars 15 are arranged relatively parallel on both sides of the lead screw 14, and one end of each optical bar 15 is fixedly connected to the corresponding connecting ear plate. The lead screw slider 9 is mounted on the lead screw 14 and the two optical bars 15, and the lead screw slider 9 is threadedly connected to the lead screw 14 and slidably connected to the two optical bars 15. The power motor 12 is mounted on the top of the mounting plate 11 through a motor bracket. The transmission component 13 is arranged on the power output end of the power motor 12, and one end of the transmission component 13 is sleeved on the motor output shaft of the power motor 12, and the other end of the transmission component 13 is sleeved on one end of the lead screw 14. The power motor 12, as a power element, drives the lead screw 14 to rotate through the transmission component 13. Other compositions and connection methods are the same as those in the fourth specific embodiment.

[0036] In this embodiment, the sliding unit is mainly used to drive the spraying structure to perform reciprocating movement in the horizontal direction. With the power motor 12 as the power source and the lead screw and rail structure as the path guiding component, it can not only ensure a large stroke but also improve the accuracy of the path. The structure is simple, reliable, and low in cost, with good economy and later maintainability.

[0037] Specific embodiment six: Combining Figures 1 to 10 To describe this embodiment, the difference between this embodiment and the fifth specific embodiment is that the transmission component 13 includes a driving pulley, a driven pulley, and a transmission belt. The driving pulley is sleeved on the motor output shaft of the power motor 12, the driven pulley is sleeved on one end of the lead screw 14, and the transmission belt is sleeved on the driving pulley and the driven pulley. The driving pulley drives the driven pulley to rotate synchronously through the transmission belt. Other compositions and connection methods are the same as those in the fifth specific embodiment.

[0038] Specific embodiment seven: Combining Figures 1 to 10 To describe this embodiment, the difference between this embodiment and the sixth specific embodiment is that the rotating unit includes a rotating motor 6 and a rotating transmission mechanism 7. The rotating motor 6 is inverted at the bottom of the lead screw slider 9 and is detachably connected to the lead screw slider 9 through a motor mounting seat 8. The power output shaft of the rotating motor 6 is arranged vertically downward. The spraying structure is mounted on the power output shaft of the rotating motor 6 through the rotating transmission mechanism 7, and the rotating motor 6, as the power source, drives the spraying structure to rotate synchronously through the rotating transmission mechanism 7. Other compositions and connection methods are the same as those in the sixth specific embodiment.

[0039] Embodiment VIII: Combined with Figures 1 to 10 This embodiment will be described. The difference between this embodiment and Embodiment VII is that the rotation transmission mechanism 7 includes a housing 71, a first support bearing 72, a driving bevel gear 73, a transmission bevel gear 74, a fixed shaft 75, a driven bevel gear 76, and a second support bearing 77. The housing 71 is arranged below the rotation motor 6. The power output shaft of the rotation motor 6 passes through the top of the housing 71 and is inserted into the driving bevel gear 73 located inside the housing 71. The power output shaft of the rotation motor 6 is rotatably connected to the housing 71 through the first support bearing 72. One end of the fixed shaft 75 is fixed to the inner wall on one side of the housing 71. The transmission bevel gear 74 is sleeved on the other end of the fixed shaft 75, and the transmission bevel gear 74 is rotatably connected to the fixed shaft 75 through a bearing. The transmission bevel gear 74 is in meshing engagement with the driving bevel gear 73. The connecting pipe 3 in the spraying structure passes through the bottom of the housing 71 and is inserted into the driven bevel gear 76 located inside the housing 71. The connecting pipe 3 is rotatably connected to the housing 71 through the second support bearing 77. The driven bevel gear 76 is located directly below the driving bevel gear 73 and is coaxially corresponding to the driving bevel gear 73. The driven bevel gear 76 is in meshing engagement with the transmission bevel gear 74. The driving bevel gear 73 drives the driven bevel gear 76 to rotate synchronously through the transmission bevel gear 74. One end of the liquid inlet pipe 1 is communicated with the liquid outlet end of the external spraying water tank. The other end of the liquid inlet pipe 1 passes through the side wall of the housing 71 and is rotatably communicated with the top end of the connecting pipe 3 through a water pipe rotary joint 2. Other components and connection methods are the same as those in Embodiment VII.

[0040] Combined with Embodiment VII and Embodiment VIII, the rotation unit provided in this application is the main structure that drives the spraying structure to rotate. To achieve the rotation purpose, the liquid inlet pipe 1 in the spraying structure is connected to the connecting pipe 3 through the water pipe rotary joint 2. In this way, when the connecting pipe 3 rotates, it will not affect the working position of the liquid inlet pipe 1, which can ensure the stable input of nutrient solution or water. The core of the rotation action is the rotation transmission mechanism 7, which uses bevel gear transmission as the main transmission system. The layout gap of the bevel gear structure can provide enough layout space for the liquid inlet pipe 1. The liquid inlet pipe 1 adopts a flexible pipe design and the working length should be at least greater than half of the length of the agricultural greenhouse to meet the requirements of the large stroke of the spraying structure.

[0041] Embodiment IX: Combined with Figures 1 to 10 This embodiment will be described. The difference between this embodiment and Embodiment VIII is that buckle covers are arranged on both sides of the housing 71. Other components and connection methods are the same as those in Embodiment VIII.

[0042] In this embodiment, the buckle covers arranged on both sides of the housing 71 can ensure the sealing performance of the rotation transmission mechanism 7 and prevent dust from entering the rotation transmission mechanism 7.

[0043] Embodiment X: In combination with Figures 1 to 10 Referring to this embodiment, the difference between this embodiment and Embodiment IX is that two side hook plates 10 are provided at the bottom of the lead screw slider 9. The two side hook plates 10 are oppositely arranged on both sides of the rotating motor 6, and the top of each side hook plate 10 is fixedly connected to the bottom of the lead screw slider 9. The bottom of each side hook plate 10 extends to the bottom of the housing 71 to support the bottom of the housing 71. Other components and connection methods are the same as those in Embodiment IX.

[0044] With such an arrangement, the side hook plates 10 can be used to assist in supporting the housing 71 to ensure the layout stability of the rotation transmission mechanism 7.

[0045] The present utility model has been disclosed above with preferred embodiments. However, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed structure and technical content within the scope of the technical solution of the present utility model to form equivalent embodiments of equivalent changes. However, as long as the content does not depart from the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

[0046] Working principle

[0047] When the spray device for an agricultural and forestry plant planting greenhouse provided by the present application is working, it is first assembled according to the layout methods in Embodiments I to X, and the working mode is selected according to the crops to be sprayed:

[0048] For field-planted crops, it works by horizontal movement in cooperation with the spray structure. First, the spray structure is moved to one end of the greenhouse through the sliding unit. At this time, the liquid extraction pump on the external spray water tank is started, and the liquid in the external spray water tank is introduced into the liquid inlet pipe 1 and sequentially sprayed on the crops through the connecting pipe 3, the shunt pipe 4 and a plurality of variable-angle spray heads 5. While ensuring the working state of the spray structure, the power motor 12 in the sliding unit works to drive the lead screw 14 to rotate. As the lead screw 14 rotates, the lead screw slider 9 drives the rotation unit and the spray structure as a whole to move along the length direction of the agricultural greenhouse, thereby realizing the action of moving spraying. When the spray structure moves to the other end of the greenhouse, a spraying operation for the entire greenhouse crops is completed. The number of spraying times can be selected according to actual needs to achieve the purpose of comprehensive spraying;

[0049] For the shelf-planted crops, the horizontal movement is combined with the spraying structure for operation. First, the spraying structure is moved to one end of the greenhouse through the sliding unit. At this time, the liquid extraction pump on the external spraying water tank is started, and the liquid in the external spraying water tank is introduced into the liquid inlet pipe 1 and sprayed on the crops through the connecting pipe 3, the shunt pipe 4 and multiple variable-angle spray heads 5 in sequence. While ensuring the operation of the spraying structure, the power motor 12 in the sliding unit operates and drives the lead screw 14 to rotate. As the lead screw 14 rotates, the lead screw slider 9 drives the rotation unit and the spraying structure as a whole to move along the length direction of the agricultural greenhouse. At the same time, the rotation motor 6 operates and drives the connecting pipe 3, the shunt pipe 4 and multiple variable-angle spray heads 5 as a whole to rotate through the rotation transmission structure 7. Along with the rotation of the shunt pipe 4 and multiple variable-angle spray heads 5, the spraying range can be expanded and the spraying angle can be adjusted, and the side crops in the shelf can also be sprayed. When the spraying structure moves to the other end of the greenhouse, a spraying operation for all the crops in the whole greenhouse is completed, and the spraying times can be selected according to actual needs to achieve the purpose of comprehensive spraying.

Claims

1. A spray structure for a greenhouse for growing agricultural and forestry plants, characterized in that: The spray structure comprises a liquid inlet pipe (1), a water pipe rotating joint (2), a connecting pipe (3), a diverter pipe (4) and a plurality of variable angle spray heads (5); one end of the liquid inlet pipe (1) is connected to a liquid outlet end of an external spray water tank; the other end of the liquid inlet pipe (1) is rotatably connected to one end of the connecting pipe (3) through a water pipe rotating joint (2); the other end of the connecting pipe (3) is inserted into the liquid inlet end of the diverter pipe (4) and is connected to the diverter pipe (4); the plurality of variable angle spray heads (5) are equidistantly arranged on the diverter pipe (4) along the length extension direction of the diverter pipe (4); and each variable angle spray head (5) is connected to a liquid outlet end on the diverter pipe (4).

2. The spray structure for an agricultural and forestry plant planting greenhouse according to claim 1, characterized in that: The variable angle spray head (5) comprises a connecting pipe (51), a threaded joint (52), a memory metal bellows (53) and a high-pressure spray head (54); one end of the connecting pipe (51) is connected to a liquid outlet end on a shunt pipe (4); an outer circumferential surface of the other end of the connecting pipe (51) is processed with an external thread; one end of the threaded joint (52) is sleeved on the other end of the connecting pipe (51); the threaded joint (52) and the connecting pipe (51) are threadedly detachably connected; one end of the memory metal bellows (53) is connected to the other end of the threaded joint (52); the high-pressure spray head (54) is mounted on the other end of the memory metal bellows (53); and the high-pressure spray head (54) is connected to the memory metal bellows (53).

3. A spraying device for a greenhouse for growing agricultural and forestry plants, characterized in that: The spray device is installed in an agricultural greenhouse, and the spray device includes a spray structure according to any one of claims 1 to 2, and also includes a support unit, a sliding unit and a rotating unit. The support unit includes two support components (16), and the two support components (16) are relatively arranged at the two ends of the agricultural greenhouse, and each support component (16) is fixed to the ground in the agricultural greenhouse by a pre-embedded pin. The sliding unit is arranged between the two support components (16), and the sliding unit is located at the upper part of the two support components (16) and is arranged parallel to the ground in the agricultural greenhouse. The two ends of the sliding unit are respectively detachably connected to the top of a support component (16), and the sliding part of the sliding unit is arranged toward the ground in the agricultural greenhouse. The rotating unit is arranged on the sliding part of the sliding unit and is detachably connected to the sliding part of the sliding unit. The spray structure is installed on the rotating end of the rotating unit and is connected to an external spray water tank.

4. A spraying device for an agricultural and forestry plant planting greenhouse according to claim 3, characterized in that: The support component (16) is an L-shaped frame, the horizontal portion of the support component (16) is fixed to the ground in the agricultural greenhouse by means of pre-buried pins, the sliding unit is detachably connected to the upper portion of the vertical portion of the support component (16), a support rib plate (17) is provided between the horizontal portion and the vertical portion of the support component (16), one side of the support rib plate (17) is fixedly connected to the vertical portion of the support component (16), and the bottom of the support rib plate (17) is fixedly connected to the horizontal portion of the support component (16).

5. A spraying device for a greenhouse for growing agricultural and forestry plants according to claim 4, characterized in that: The sliding unit comprises a lead screw slider (9), a mounting plate (11), a power motor (12), a transmission component (13), a lead screw (14) and two optical rods (15). The two ends of the bottom of the mounting plate (11) are respectively provided with a connecting ear plate extending downward, and the two connecting ear plates are arranged opposite to each other. The lead screw (14) is arranged between the two connecting ear plates, and the two ends of the lead screw respectively pass through the connecting ear plates and extend to the outside of the connecting ear plates. The lead screw (14) is rotatably connected to the two connecting ear plates through two rotating bearings. The two optical rods (15) are relatively parallel and arranged on both sides of the lead screw (14), and one end of each optical rod (15) is fixed to the corresponding connecting ear plate. The screw slider (9) is installed on the screw (14) and the two smooth rods (15), and the screw slider (9) is threadedly connected to the screw (14), and the screw slider (9) is slidably connected to the two smooth rods (15). The power motor (12) is installed on the top of the mounting plate (11) through the motor frame. The transmission component (13) is arranged on the power output end of the power motor (12), and one end of the transmission component (13) is sleeved on the motor output shaft of the power motor (12), and the other end of the transmission component (13) is sleeved on one end of the screw (14). The power motor (12) serves as a power element and drives the screw (14) to rotate through the transmission component (13).

6. A spraying device for an agricultural and forestry plant planting greenhouse according to claim 5, characterized in that: The transmission component (13) comprises a driving pulley, a driven pulley and a transmission belt. The driving pulley is sleeved on the motor output shaft of the power motor (12), the driven pulley is sleeved on one end of the lead screw (14), the transmission belt is sleeved on the driving pulley and the driven pulley, and the driving pulley drives the driven pulley to rotate synchronously through the transmission belt.

7. A spraying device for an agricultural and forestry plant planting greenhouse according to claim 6, characterized in that: The rotating unit comprises a rotating motor (6) and a rotating transmission mechanism (7); the rotating motor (6) is inverted at the bottom of the lead screw slider (9) and is detachably connected to the lead screw slider (9) through a motor mounting seat (8); a power output shaft of the rotating motor (6) is arranged vertically downward; a spray structure is mounted on the power output shaft of the rotating motor (6) through the rotating transmission mechanism (7); and the rotating motor (6) serves as a power source to drive the spray structure to rotate synchronously through the rotating transmission mechanism (7).

8. A spraying device for an agricultural and forestry plant planting greenhouse according to claim 7, characterized in that: The rotary transmission mechanism (7) comprises a housing (71), a first support bearing (72), a driving bevel gear (73), a driving bevel gear (74), a fixed shaft (75), a driven bevel gear (76) and a second support bearing (77). The housing (71) is arranged below the rotary motor (6). The power output shaft of the rotary motor (6) passes through the top of the housing (71) and is inserted into the driving bevel gear (73) located in the housing (71). The power output shaft of the rotary motor (6) is rotatably connected to the housing (71) through the first support bearing (72). One end of the fixed shaft (75) is fixed to an inner wall of one side of the housing (71). The driving bevel gear (74) is sleeved on the other end of the fixed shaft (75). The driving bevel gear (74) is rotatably connected to the fixed shaft (75) through the bearing. The driving bevel gear (74) The connecting pipe (3) in the spray structure passes through the bottom of the housing (71) and is inserted into the driven bevel gear (76) located in the housing (71). The connecting pipe (3) is rotatably connected to the housing (71) through a second support bearing (77). The driven bevel gear (76) is located directly below the driving bevel gear (73) and is coaxially arranged with the driving bevel gear (73). The driven bevel gear (76) is rotatably engaged with the transmission bevel gear (74). The driving bevel gear (73) drives the driven bevel gear (76) to rotate synchronously through the transmission bevel gear (74). One end of the liquid inlet pipe (1) is connected to the liquid outlet end of the external spray water tank. The other end of the liquid inlet pipe (1) passes through the side wall of the housing (71) and is rotatably connected to the top end of the connecting pipe (3) through the water pipe rotating joint (2).

9. A spraying device for an agricultural and forestry plant planting greenhouse according to claim 8, characterized in that: Buckle covers are arranged on both sides of the housing (71).

10. A spraying device for an agricultural and forestry plant planting greenhouse according to claim 9, characterized in that: Two side hook plates (10) are provided at the bottom of the lead screw slider (9), and the two side hook plates (10) are arranged oppositely on both sides of the rotating motor (6), and the top of each side hook plate (10) is fixedly connected to the bottom of the lead screw slider (9), and the bottom of each side hook plate (10) extends to the bottom of the housing (71) and supports the bottom of the housing (71).

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