Pesticide spraying device and method for reducing fruit cracking rate of Huping jujubes

Abstract

The invention discloses a pesticide spraying device for reducing the fruit cracking rate of Huping jujubes, which is characterized by comprising a main bracket connected with a water spraying assembly through an angle adjusting assembly; the water spraying assembly is used for spraying water, the main support is used for supporting the angle adjusting assembly, and the main support can adjust the water spraying position by adjusting the circumferential position of the angle adjusting assembly; the invention relates to the technical field of anti-cracking pesticide spraying for ziziphus jujuba, in particular to a pesticide spraying device and method for reducing the fruit cracking rate of ziziphus jujuba, a rotation adjusting assembly and an angle adjusting assembly of a main support can enable a water spraying assembly to flexibly adapt to the positions and shapes of different branches, it is ensured that a solution is evenly sprayed on ziziphus jujuba, and the fruit cracking rate of ziziphus jujuba is increased. The effect of gibberellin and a calcium solution on reduction of the fruit cracking rate can be better exerted, accurate spraying can be conducted on the positions with jujubes through distance adjustment of nozzles of the water spraying assembly, concentrated spraying can be conducted on the positions with the jujubes with the low density, spraying can be conducted on the nozzles with the large jujube range in a dispersed mode, and waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of Huping jujube anti-cracking spraying, and in particular to a spraying device and method for reducing the cracking rate of Huping jujube. Background Art

[0002] The Huping jujube tree is a tree that is usually about 8-10 meters tall. In some orchards that have been carefully dwarfed for easy picking and intensive management, the height of the Huping jujube tree may be controlled at around 3-5 meters. Fruit cracking is common during the growth of Huping jujubes, which seriously affects the yield and quality of Huping jujubes and causes great economic losses to growers. The traditional method of preventing and controlling fruit cracking is to use a physical canopy to reduce the fruit cracking rate, which is costly. The second method is to use foliar fertilizer to reduce the fruit cracking rate. The fruit cracking rate has been reduced, but the application period is concentrated in the growth and development period of the fruit, and the application concentration is unclear.

[0003] Moreover, the spraying devices currently on the market are generally manual spraying with sprayers. Ordinary spraying equipment is not high enough, and it is laborious to hold it manually for a long time when using it. There is a lack of spraying devices specifically for Huping Jujube that can accurately adjust the spraying position and range, and it cannot meet the demand for reducing the fruit cracking rate of Huping Jujube in different growth stages and different planting environments.

[0004] In summary, in order to solve at least part of the above problems, a spraying device and method capable of evenly spraying to reduce the cracking rate of Huping dates have been developed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a spraying device and method for reducing the cracking rate of Huping dates. The rotation adjustment component and the angle adjustment component of the main bracket can enable the water spray component to flexibly adapt to the positions and shapes of different branches, ensuring that the solution is evenly sprayed on the Huping dates, which is conducive to better exerting the effects of gibberellins and calcium solutions on reducing the cracking rate of the fruit. The spacing adjustment of the nozzles of the water spray component can accurately spray the positions where there are dates, concentrate the spraying at the positions with low date density, and disperse the spraying with nozzles with a larger date range to reduce waste.

[0006] A spraying device for reducing the cracking rate of Huping jujube, characterized in that it comprises a main bracket connected to a water spraying component via an angle adjustment component;

[0007] The water spraying assembly is used for spraying water, the main bracket is used for supporting the angle adjustment assembly, and the main bracket can adjust the water spraying position by adjusting the circumferential position of the angle adjustment assembly;

[0008] The main bracket includes a hook and a rotation adjustment component, the upper end of the rotation adjustment component is connected to the hook, and the lower end of the rotation adjustment component is connected to the handrail;

[0009] The rotation adjustment assembly includes a first support plate, a connecting column, a support shaft, a pin, a first spring, a second support plate and a fixed seat, the center of the first support plate is fixedly connected to the second support plate through the support shaft, the first support plate is fixedly connected to the second support plate through the connecting column, the second support plate is rotatably connected to the fixed seat, the outer edge of the fixed seat is provided with a plurality of circumferentially arranged limiting holes, the upper side of the second support plate is fixedly connected to the first spring and the pin, the pin passes through the second support plate, and the pin can be inserted into one of the limiting holes, the center of the first support plate is fixedly connected to the hook, and the center of the fixed seat is fixedly connected to the armrest.

[0010] As a further limitation of the present technical solution, the first support plate is connected to the angle adjustment assembly, and the angle adjustment assembly includes a second spring, a ball, a bracket, a ball groove, a connecting rod and a column. The first support plate is fixedly connected to one end of the second spring, the second spring is inclined and the angle between it and the axis of the support shaft is 40-60 degrees, the other end of the second spring is fixedly connected to the middle and upper part of the column, the column is fixedly connected to the bracket, the ball groove is opened on the upper side of the bracket, the ball is embedded in the ball groove, the ball can rotate in the ball groove, the ball is fixedly connected to the connecting rod, and the connecting rod is fixedly connected to the circumferential wall of the first support plate.

[0011] As a further limitation of the technical solution, the upper end of the column is provided with a through hole, one end of the connecting rope is buckled and connected to the upper end of the column, and the other end of the connecting rope is buckled and connected to the pull rod.

[0012] As a further limitation of the present technical solution, the water spray assembly includes a first slot rod, a slider, a nozzle and a nozzle, the first slot rod is an arc-shaped slot rod, the two ends of the first slot rod are respectively fixed to the lower ends of both sides of the bracket, a group of sliders are arranged in the slide groove of the first slot rod, the sliders can slide along the slide groove of the first slot rod, the lower side of each slider is respectively fixedly connected to the nozzle, and a plurality of nozzles are respectively arranged on one side of each nozzle.

[0013] As a further limitation of the present technical solution, the water spray assembly is also connected to a spray distance adjustment assembly, which includes a motor, a fixed block, a second screw rod, a second slot rod, a first connecting rod and a second connecting rod. The lower end of the column is fixed with the upper middle part of the first slot rod, and the motor is fixed to one side of the lower end of the column. The output shaft of the motor is rotatably connected to the column, and the end of the output shaft of the motor is fixedly connected to one end of the second screw rod. The second screw rod is threadedly connected to the fixed block, and the fixed block is fixed to the upper middle part of the second slot rod. The second slot rod is an arc-shaped slot Rod, all the sliders from one end to the other end are marked as slider 1, slider 2... slider N-1, slider N in sequence, the lower side of each slider except slider N is respectively rotatably connected to one end of the second connecting rod, the lower side of each slider except slider 1 is respectively rotatably connected to one end of the first connecting rod, the other ends of adjacent first connecting rods and second connecting rods are hinged to each other, the other ends of all the second connecting rods are respectively fixed with a circular shaft and the circular shaft is set in the sliding groove of the second slot rod, and the sliding groove of the second slot rod matches the circular shaft fixed at the other end of the second connecting rod.

[0014] As a further limitation of the technical solution, a stopper is fixed to the other end of the second screw rod, and the diameter of the stopper is greater than the diameter of the second screw rod.

[0015] As a further limitation of the technical solution, it also includes a mobile frame and a water tank, the mobile frame has a plurality of walking wheels, the water tank is fixedly arranged on the upper side of the mobile frame, the water outlets of the water pump of the water tank are respectively fixedly connected to the nozzles through hoses, and an operation button is arranged on the pull rod, and the operation button controls the start and stop of the water pump.

[0016] As a further limitation of the present technical solution, the solution in the water tank is a solution containing water, gibberellin and calcium, wherein the gibberellin concentration is 25 mg / L and the calcium concentration is 300 times.

[0017] A method for using a spraying device for reducing the cracking rate of Huping jujube fruits comprises the following steps:

[0018] Step 1: Push the mobile rack to the appropriate location of the Huping jujube planting area, hang the hook of the main bracket on the branch, add the solution containing water, gibberellin (concentration 25mg / L) and calcium (concentration 300 times liquid) into the water tank, and connect the hose between the water tank pump and the nozzle;

[0019] Step 2: According to the position of the branch that needs to be sprayed, operate the rotating adjustment component: lift the pin to make the pin disengage from the limiting hole of the fixing seat. At this time, the first spring is stretched, and the pin no longer limits the second support plate. The rotating connecting column drives the first support plate, the second support plate and the angle adjustment component to rotate, thereby realizing the position change of the water spray component in the circumferential direction. After the adjustment is completed, the pin is inserted into the corresponding limiting hole, and the spring rebounds to fix the circumferential position of the water spray component;

[0020] Step 3: Adjust the water spraying angle, pull the connecting rope or the operating rod to drive the column to swing. Since the column is connected to the second support plate through the second spring, and the ball groove of the bracket cooperates with the ball, when the column swings, it can drive the bracket to swing, thereby realizing the angle adjustment of the water spraying assembly, so that the sprinkler head can accurately face the area to be sprayed;

[0021] Step 4: Adjust the distance between the nozzles, start the motor, the motor drives the second screw to rotate, the second screw drives the fixed block to move, the fixed block drives the second slot rod to move, the second slot rod drives the circular axis of the second connecting rod in its slide groove to move, so that the second connecting rod swings, the second connecting rod drives the first connecting rod to swing, under the joint action of the second connecting rod and the first connecting rod, the slider moves, and the slider drives the nozzle to move, so as to realize the synchronous reduction or expansion of the distance between all nozzles to meet different spraying needs.

[0022] Step 5: Operate the operating button on the pull rod to start the water pump of the water tank, so that the spraying liquid enters the nozzle from the water tank and is sprayed out through the nozzle to start spraying the Huping dates.

[0023] The spraying operation starts from the flowering of Huping Jujube, and is carried out once every 5 days from the flowering period to the fruit expansion period. The solution is prepared according to the prescribed gibberellin and calcium concentrations to ensure that the fruit cracking rate of Huping Jujube is effectively reduced.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are:

[0025] (1) The rotation adjustment component and the angle adjustment component of the main support can make the water spray component flexibly adapt to the position and shape of different branches, ensuring that the solution is evenly sprayed on the Huping jujube, which is conducive to better exerting the role of gibberellin and calcium solution in reducing the cracking rate of fruit. The spacing adjustment of the nozzles of the water spray component can accurately spray the position where there are jujubes, concentrate the spraying at the position with low jujube density, and disperse the spraying with nozzles with a relatively large jujube range to reduce waste;

[0026] (2) The setting of the spraying distance adjustment component can achieve synchronous adjustment of the distance between all nozzles, further optimizing the spraying effect and enabling the solution to be more evenly distributed on various parts of the jujube tree;

[0027] (3) The device is equipped with a mobile frame and a water tank, and is connected to the nozzle through a hose, which is convenient for mobile operation in the orchard. There is no need to carry heavy equipment, which is easy to operate and improves work efficiency;

[0028] (4) The solution containing specific concentrations of gibberellin and calcium was sprayed every 5 days from the flowering stage to the fruit expansion stage of Huping jujube, which significantly reduced the fruit cracking rate of Huping jujube. Compared with untreated jujube, the fruit cracking rate of jujube after the coupling treatment of gibberellin and calcium was greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0030] Figure 1 A perspective view of the present invention;

[0031] Figure 2 The local stereoscopic Figure 1 ;

[0032] Figure 3 The local stereoscopic Figure 2 ;

[0033] Figure 4 The local stereoscopic Figure 3 .

[0034] In the figure: 1. hook; 2. rotation adjustment component; 201. first support plate; 202. connecting column; 203. support shaft; 204. pin; 205. first spring; 206. second support plate; 207. fixed seat; 3. connecting rope; 4. pull rod; 5. handrail; 6. mobile frame; 7. water tank; 8. angle adjustment component; 801. second spring; 802. ball; 803. bracket; 8031. ball groove; 804. connecting rod; 805. column; 9. water spray component; 901. first slot rod; 902. slider; 903. nozzle; 9031. nozzle; 10. spray distance adjustment component; 1001. motor; 1002. fixing block; 1003. second screw rod; 1004. second slot rod; 1005. first connecting rod; 1006. second connecting rod. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0036] A spraying device for reducing the cracking rate of Huping jujube, comprising a main support 803 connected to a water spraying component 9 via an angle adjustment component 8;

[0037] The water spraying assembly 9 is used for spraying water, and the main bracket 803 is used for supporting the angle adjustment assembly 8. The main bracket 803 can adjust the water spraying position by adjusting the circumferential position of the angle adjustment assembly 8;

[0038] The main bracket 803 includes a hook 1 and a rotation adjustment component 2, the upper end of the rotation adjustment component 2 is connected to the hook 1, and the lower end of the rotation adjustment component 2 is connected to the handrail 5;

[0039] The rotation adjustment assembly 2 includes a first support plate 201, a connecting column 202, a supporting shaft 203, a pin 204, a first spring 205, a second support plate 206 and a fixing seat 207. The center of the first support plate 201 is fixedly connected to the second support plate 206 through the supporting shaft 203. The first support plate 201 is fixedly connected to the second support plate 206 through the connecting column 202. The second support plate 206 is rotatably connected to the fixing seat 207. The outer edge of the fixing seat 207 is provided with a plurality of circumferentially arranged limiting holes. The upper side of the second support plate 206 is fixedly connected to the first spring 205 and the pin 204. The pin 204 passes through the second support plate 206 and can be inserted into one of the limiting holes. The center of the first support plate 201 is fixedly connected to the hook 1, and the center of the fixing seat 207 is fixedly connected to the handrail 5.

[0040] Specifically, the hook 1 can be hung on a tree branch and supported by setting a main bracket 803, the angle adjustment component 8 can adjust the angle position of the water spraying component 9, the rotation adjustment component 2 of the main bracket 803 is connected to the hook 1, and the rotation adjustment component 2 can adjust the circumferential position of the angle adjustment component 8 and the water spraying component 9;

[0041] Specifically, the second support plate 206 of the rotating adjustment component 2 is rotated to connect the fixed seat 207, and the pin 204 is lifted to realize that the pin 204 is disengaged from the limiting hole of the fixed seat 207. The first spring 205 is stretched, and the pin 204 no longer limits the second support plate 206 after moving up. The rotating connecting column 202 drives the first support plate 201, the second support plate 206 and the angle adjustment component 8 to rotate, so as to realize the rotation of the water spray component 9. For example: the rotating adjustment component 2 is operated according to the position of the water spray required to realize the position change of the water spray component 9. After the adjustment is completed, the pin 204 is inserted into the corresponding limiting hole, and the spring rebounds.

[0042] In some embodiments, the first support plate 201 is connected to the angle adjustment component 8, and the angle adjustment component 8 includes a second spring 801, a ball 802, a bracket 803, a ball groove 8031, a connecting rod 804 and a column 805. The first support plate 201 is fixedly connected to one end of the second spring 801, the second spring 801 is tilted and the angle between it and the axis of the support shaft 203 is 40-60 degrees, the other end of the second spring 801 is fixedly connected to the middle and upper part of the column 805, the column 805 is fixedly connected to the bracket 803, the ball groove 8031 ​​is opened on the upper side of the bracket 803, the ball 802 is embedded in the ball groove 8031, the ball 802 can rotate in the ball groove 8031, the ball 802 is fixedly connected to the connecting rod 804, and the connecting rod 804 is fixedly connected to the circumferential wall of the first support plate 201.

[0043] Specifically, the first support plate 201 is connected to the angle adjustment component 8. The column 805 of the angle adjustment component 8 is connected to the second support plate 206 through the second spring 801. The second support plate 206 fixes the connecting rod 804. The connecting rod 804 fixes the sphere 802. The sphere 802 can rotate in the ball groove 8031. Therefore, when the column 805 is pulled, the bracket 803 fixed to the column 805 can be driven to swing, and the ball groove 8031 ​​of the bracket 803 can rotate along the sphere 802. The second spring 801 undergoes elastic deformation, so that the angle adjustment component 8 can work and drive the water spray component 9 to swing, thereby realizing the adjustment of the water spray angle.

[0044] In some embodiments, a through hole is provided at the upper end of the column 805 , one end of the connecting rope 3 is buckled and connected to the upper end of the column 805 , and the other end of the connecting rope 3 is buckled and connected to the pull rod 4 .

[0045] Specifically, by setting the connecting rope 3 and the pull rod 4, it is convenient to pull the column 805 to drive the column 805 to swing. The connecting rope 3, the pull rod 4 and the column 805 are buckled and connected, which is convenient for disassembly and convenient for adjusting the height of the pull rod 4 as needed. For example: adjust the length of the connecting rope 3 between the column 805 and the pull rod 4 to adjust the height of the pull rod 4.

[0046] In some embodiments, the water spray assembly 9 includes a first slot rod 901, a slider 902, a nozzle 903 and a nozzle 9031. The first slot rod 901 is an arc-shaped slot rod. The two ends of the first slot rod 901 are respectively fixed to the lower ends of both sides of the bracket 803. A group of sliders 902 are arranged in the slide groove of the first slot rod 901. The slider 902 can slide along the slide groove of the first slot rod 901. The lower side of each slider 902 is respectively fixedly connected to the nozzle 903, and a plurality of nozzles 9031 are respectively arranged on one side of each nozzle 903.

[0047] Specifically, the spray head 903 of the water spray assembly 9 fixes the slider 902 , and the slider 902 can slide in the slide groove of the first groove rod 901 to achieve the distance adjustment between the spray heads 903 .

[0048] In some embodiments, the water spray assembly 9 is also connected to a spray distance adjustment assembly 10, and the spray distance adjustment assembly 10 includes a motor 1001, a fixed block 1002, a second screw 1003, a second slot rod 1004, a first connecting rod 1005 and a second connecting rod 1006. The lower end of the column 805 is fixed with the upper middle part of the first slot rod 901, and the motor 1001 is fixed to one side of the lower end of the column 805. The output shaft of the motor 1001 is rotatably connected to the column 805, and the end of the output shaft of the motor 1001 is fixedly connected to one end of the second screw 1003. The second screw 1003 is threadedly connected to the fixed block 1002, and the fixed block 1002 is fixed to the upper middle part of the second slot rod 1004. 04 is an arc-shaped slot rod, and all the sliders 902 from one end to the other are marked as slider 9021, slider 9022... slider 902N-1, slider 902N in sequence. The lower side of each slider 902 except the slider 902N is respectively rotatably connected to one end of the second connecting rod 1006, and the lower side of each slider 902 except the slider 9021 is respectively rotatably connected to one end of the first connecting rod 1005. The other ends of adjacent first connecting rods 1005 and second connecting rods 1006 are hinged to each other, and the other ends of all the second connecting rods 1006 are respectively fixed with a circular shaft and the circular shaft is set in the slide groove of the second slot rod 1004, and the slide groove of the second slot rod 1004 matches the circular shaft fixed at the other end of the second connecting rod 1006.

[0049] Specifically, the positions of the slider 902 and the nozzles 903 can be adjusted through the spraying distance adjustment component 10 to achieve synchronous adjustment of the distances between all nozzles 903 .

[0050] Specifically, the motor 1001 is a stepper motor 1001, which drives the second screw 1003 to rotate. The second screw 1003 drives the fixed block 1002 to move. The fixed block 1002 drives the second slot rod 1004 to move. The second slot rod 1004 can drive the circular axis of the second connecting rod 1006 in its slide groove to move, so that the second connecting rod 1006 swings. The second connecting rod 1006 can drive the first connecting rod 1005 to swing. Under the joint action of the second connecting rod 1006 and the first connecting rod 1005, the slider 902 is driven to move. The slider 902 drives the nozzle 903 to move, adjust the distance between the nozzles 903, and realize the synchronous reduction or expansion of the distance between all nozzles 903.

[0051] In some embodiments, a stopper is fixed to the other end of the second screw rod 1003 , and a diameter of the stopper is greater than a diameter of the second screw rod 1003 .

[0052] The stopper prevents the fixing block 1002 from being separated from the second screw rod 1003 , thereby playing a limiting role.

[0053] In some embodiments, a mobile frame 6 and a water tank 7 are also included, wherein the mobile frame 6 has a plurality of walking wheels, the water tank 7 is fixedly arranged on the upper side of the mobile frame 6, the water outlets of the water pump of the water tank 7 are respectively fixedly connected to the nozzles 903 through hoses, and an operation button is arranged on the pull rod 4, and the operation button controls the start and stop of the water pump.

[0054] Specifically, the nozzle 903 is connected through the water pump of the water tank 7. When the water pump works, the spray liquid enters the nozzle 903 from the water tank 7 and is sprayed out through the nozzle 9031. The button can control the start and stop of the water pump to realize the spraying of the nozzle 903. The movable frame 6 and the water tank 7 can move, which is convenient for pushing and walking, and does not need to be carried. After the mobile sprayer and the main bracket 803 are connected, the water tank 7 can be easily pushed to the appropriate position. After the water pump of the water tank 7 and the nozzle 903 are connected through a hose, the spraying operation can be conveniently carried out.

[0055] The solution in the water tank 7 is a solution containing water, gibberellin and calcium, wherein the gibberellin concentration is 25 mg / L and the calcium concentration is 300 times.

[0056] Specifically, through the coupling treatment of gibberellin and calcium, the calcium concentration is 300 times the liquid concentration, the gibberellin concentration is 25 mg / L, and the spraying treatment is carried out from the beginning of flowering of the Huping jujube, and from the flowering period to the fruit expansion period, spraying is carried out once every 5 days.

[0057] Specifically, according to this method, the fruit cracking rate of red dates is significantly reduced. The fruit cracking rate of dates without spraying is 40.2%, the fruit cracking rate of calcium treatment is 10%, the fruit cracking rate of gibberellin treatment is 13.2%, and the fruit cracking rate of gibberellin and calcium coupled spraying treatment is 7.6%. The fruit cracking rate of gibberellin and calcium coupled treatment is significantly lower than that of untreated dates.

[0058] The working principle of the present invention is:

[0059] Push the mobile frame 6 to a suitable position in the Huping jujube planting area, ensure that the hook 1 of the main support 803 can be conveniently hung on the branch, and the water tank 7 is equipped with a solution containing water, gibberellin (concentration 25 mg / L) and calcium (concentration 300 times liquid), and connect the hose between the water pump of the water tank 7 and the nozzle 903;

[0060] According to the position of the branch to be sprayed, the rotating adjustment component 2 is operated: the pin 204 is lifted to disengage the pin 204 from the limiting hole of the fixing seat 207. At this time, the first spring 205 is stretched, and the pin 204 no longer limits the second support plate 206. The connecting column 202 is rotated to drive the first support plate 201, the second support plate 206 and the angle adjustment component 8 to rotate, thereby realizing the position change of the water spray component 9 in the circumferential direction. After the adjustment is completed, the pin 204 is inserted into the corresponding limiting hole, and the spring rebounds to fix the circumferential position of the water spray component 9.

[0061] If the water spraying angle needs to be adjusted, the connecting rope 3 or the operating rod 4 is pulled to drive the column 805 to swing. Since the column 805 is connected to the second support plate 206 through the second spring 801, and the ball groove 8031 ​​of the bracket 803 cooperates with the ball 802, when the column 805 swings, the bracket 803 can be driven to swing, thereby achieving the angle adjustment of the water spraying assembly 9, so that the nozzle 903 can accurately face the area to be sprayed;

[0062] If the distance between the nozzles 903 is to be adjusted, the motor 1001 is started, the motor 1001 drives the second screw 1003 to rotate, the second screw 1003 drives the fixed block 1002 to move, the fixed block 1002 drives the second slot rod 1004 to move, the second slot rod 1004 drives the circular axis of the second connecting rod 1006 in its slide groove to move, so that the second connecting rod 1006 swings, the second connecting rod 1006 drives the first connecting rod 1005 to swing, under the joint action of the second connecting rod 1006 and the first connecting rod 1005, the slider 902 is driven to move, the slider 902 drives the nozzle 903 to move, and the distance between all the nozzles 903 is synchronously reduced or expanded to meet different spraying requirements.

[0063] Operate the operating button on the pull rod 4 to start the water pump of the water tank 7, so that the spray liquid enters the spray head 903 from the water tank 7 and is sprayed out through the nozzle 9031, and start spraying the Huping dates. Spraying treatment starts from the flowering of the Huping dates. From the flowering period to the fruit expansion period, spray once every 5 days. Prepare the solution according to the specified gibberellin and calcium concentrations to ensure that the fruit cracking rate of the Huping dates is effectively reduced.

[0064] The invention also discloses a method for using a spraying device for reducing the cracking rate of Huping jujube, comprising the following steps:

[0065] Step 1: Push the mobile frame 6 to a suitable position in the Huping jujube planting area, hang the hook 1 of the main support 803 on the branch, add the solution containing water, gibberellin (concentration 25 mg / L) and calcium (concentration 300 times liquid) into the water tank 7, and connect the hose between the water pump of the water tank 7 and the nozzle 903;

[0066] Step 2: According to the position of the branch to be sprayed, operate the rotating adjustment component 2 to work: lift the pin 204 to make the pin 204 disengage from the limiting hole of the fixing seat 207. At this time, the first spring 205 is stretched, and the pin 204 no longer limits the second support plate 206. The connecting column 202 is rotated to drive the first support plate 201, the second support plate 206 and the angle adjustment component 8 to rotate, thereby realizing the position change of the water spray component 9 in the circumferential direction. After the adjustment is completed, the pin 204 is inserted into the corresponding limiting hole, and the spring rebounds to fix the circumferential position of the water spray component 9;

[0067] Step 3: Adjust the water spraying angle, pull the connecting rope 3 or the operating rod 4 to drive the column 805 to swing. Since the column 805 is connected to the second support plate 206 through the second spring 801, and the ball groove 8031 ​​of the bracket 803 cooperates with the ball 802, when the column 805 swings, it can drive the bracket 803 to swing, thereby realizing the angle adjustment of the water spraying assembly 9, so that the nozzle 903 can accurately face the area to be sprayed;

[0068] Step 4: Adjust the distance between the nozzles 903, start the motor 1001, the motor 1001 drives the second screw 1003 to rotate, the second screw 1003 drives the fixed block 1002 to move, the fixed block 1002 drives the second slot rod 1004 to move, the second slot rod 1004 drives the circular axis of the second connecting rod 1006 in its slide groove to move, so that the second connecting rod 1006 swings, the second connecting rod 1006 drives the first connecting rod 1005 to swing, under the joint action of the second connecting rod 1006 and the first connecting rod 1005, the slider 902 is driven to move, and the slider 902 drives the nozzle 903 to move, so as to realize the synchronous reduction or expansion of the distance between all the nozzles 903 to meet different spraying requirements.

[0069] Step 5: operate the operating button on the pull rod 4 to start the water pump of the water tank 7, so that the spraying liquid enters the spray head 903 from the water tank 7 and is sprayed out through the nozzle 9031, and the spraying operation on the Huping dates begins.

[0070] Among them, the spraying operation starts from the flowering of Huping Jujube, and is carried out once every 5 days from the flowering period to the fruit expansion period. The solution is prepared according to the prescribed gibberellin and calcium concentrations to ensure that the fruit cracking rate of Huping Jujube is effectively reduced.

[0071] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A spraying device for reducing the cracking rate of Huping jujube, characterized in that: It comprises a main support (803) connected to a water spraying assembly (9) via an angle adjustment assembly (8); The water spraying assembly (9) is used for spraying water, the main support (803) is used for supporting the angle adjustment assembly (8), and the main support (803) can adjust the water spraying position by adjusting the circumferential position of the angle adjustment assembly (8); The main bracket (803) comprises a hook (1) and a rotation adjustment component (2), wherein the upper end of the rotation adjustment component (2) is connected to the hook (1), and the lower end of the rotation adjustment component (2) is connected to the handrail (5); The rotation adjustment assembly (2) comprises a first support plate (201), a connecting column (202), a support shaft (203), a pin (204), a first spring (205), a second support plate (206) and a fixing seat (207); the center of the first support plate (201) is fixedly connected to the second support plate (206) via the supporting shaft (203); the first support plate (201) is fixedly connected to the second support plate (206) via the connecting column (202); the second support plate (206) is rotatably connected to the first support plate (201). The fixing seat (207) is connected to the fixing seat (207), and the outer edge of the fixing seat (207) is provided with a plurality of circumferentially arranged limiting holes. The upper side of the second supporting plate (206) is fixedly connected to the first spring (205) and the pin (204), and the pin (204) passes through the second supporting plate (206), and the pin (204) can be inserted into one of the limiting holes. The center of the first supporting plate (201) is fixedly connected to the hook (1), and the center of the fixing seat (207) is fixedly connected to the handrail (5).

2. The spraying device for reducing the cracking rate of Huping jujube according to claim 1 is characterized in that: The first support plate (201) is connected to the angle adjustment assembly (8), and the angle adjustment assembly (8) comprises a second spring (801), a ball (802), a bracket (803), a ball groove (8031), a connecting rod (804) and a column (805). The first support plate (201) is fixedly connected to one end of the second spring (801), and the second spring (801) is tilted and the angle between the second spring (801) and the axis of the support shaft (203) is 40-60 degrees. The other end is fixedly connected to the middle and upper part of the column (805), the column (805) is fixedly connected to the bracket (803), the upper side of the bracket (803) is provided with the ball groove (8031), the ball (802) is embedded in the ball groove (8031), the ball (802) can rotate in the ball groove (8031), the ball (802) is fixedly connected to the connecting rod (804), and the connecting rod (804) is fixedly connected to the circumferential wall surface of the first supporting plate (201).

3. The spraying device for reducing the cracking rate of Huping jujube according to claim 2 is characterized in that: The upper end of the column (805) is provided with a through hole, one end of the connecting rope (3) is buckled and connected to the upper end of the column (805), and the other end of the connecting rope (3) is buckled and connected to the pull rod (4).

4. The spraying device for reducing the cracking rate of Huping jujube according to claim 3 is characterized in that: The water spray assembly (9) comprises a first slot rod (901), a slider (902), a spray head (903) and a nozzle (9031); the first slot rod (901) is an arc-shaped slot rod; two ends of the first slot rod (901) are respectively fixed to the lower ends of both sides of the bracket (803); a group of sliders (902) are arranged in the slide groove of the first slot rod (901); the sliders (902) can slide along the slide groove of the first slot rod (901); the lower side of each slider (902) is respectively fixedly connected to the spray head (903); and a plurality of nozzles (9031) are respectively arranged on one side of each spray head (903).

5. The spraying device for reducing the cracking rate of Huping jujube according to claim 4 is characterized in that: The water spraying assembly (9) is also connected to a spraying distance adjusting assembly (10), and the spraying distance adjusting assembly (10) comprises a motor (1001), a fixing block (1002), a second screw rod (1003), a second slot rod (1004), a first connecting rod (1005) and a second connecting rod (1006); the lower end of the column (805) is fixed with the middle part of the upper side of the first slot rod (901); the motor (1001) is fixed to one side of the lower end of the column (805); the output shaft of the motor (1001) is rotatably connected to the column (805); the end of the output shaft of the motor (1001) is fixedly connected to one end of the second screw rod (1003); the second screw rod (1003) is threadedly connected to the fixing block (1002); the fixing block (1002) is fixed to the middle part of the upper side of the second slot rod (1004); the second slot rod (1004) is fixed to the fixing block (1002); 04) is an arc-shaped slot rod, and all the sliders (902) from one end to the other end are marked as slider (902) 1, slider (902) 2... slider (902) N-1, slider (902) N in sequence. The lower side of each slider (902) except the slider (902) N is respectively rotatably connected to one end of the second connecting rod (1006), and the lower side of each slider (902) except the slider (902) 1 is respectively rotatably connected to one end of the first connecting rod (1005). The other ends of adjacent first connecting rods (1005) and second connecting rods (1006) are hinged to each other. The other ends of all the second connecting rods (1006) are respectively fixed with a circular shaft and the circular shaft is set in the sliding groove of the second slot rod (1004). The sliding groove of the second slot rod (1004) matches the circular shaft fixed at the other end of the second connecting rod (1006).

6. The spraying device for reducing the cracking rate of Huping jujube according to claim 5, characterized in that: A stopper is fixed to the other end of the second screw rod (1003), and the diameter of the stopper is greater than the diameter of the second screw rod (1003).

7. The spraying device for reducing the cracking rate of Huping jujube according to claim 6, characterized in that: It also includes a movable frame (6) and a water tank (7), wherein the movable frame (6) has a plurality of walking wheels, the water tank (7) is fixedly arranged on the upper side of the movable frame (6), the water outlet of the water pump of the water tank (7) is fixedly connected to the nozzle (903) through a hose, and an operating button is arranged on the pull rod (4), and the operating button controls the start and stop of the water pump.

8. The spraying device for reducing the cracking rate of Huping jujube according to claim 7, characterized in that: The solution in the water tank (7) is a solution containing water, gibberellin and calcium, wherein the gibberellin concentration is 25 mg / L and the calcium concentration is 300 times.

9. The method for using the spraying device for reducing the cracking rate of Huping jujube according to claim 8, characterized in that: The following steps are involved: Step 1: Push the mobile frame (6) to a suitable position in the Huping jujube planting area, hang the hook (1) of the main support (803) on the tree branch, add a solution containing water, gibberellin (concentration 25 mg / L) and calcium (concentration 300 times liquid) into the water tank (7), and connect the hose between the water pump of the water tank (7) and the nozzle (903); Step 2: According to the position of the branch to be sprayed with water, operate the rotating adjustment component (2): lift the pin (204) to make the pin (204) disengage from the limiting hole of the fixing seat (207), at which time the first spring (205) is stretched, and the pin (204) no longer limits the second support plate (206), and the connecting column (202) is rotated to drive the first support plate (201), the second support plate (206) and the angle adjustment component (8) to rotate, thereby realizing the position change of the water spray component (9) in the circumferential direction. After the adjustment is completed, the pin (204) is inserted into the corresponding limiting hole, and the spring rebounds to fix the circumferential position of the water spray component (9); Step 3: Adjust the water spraying angle, pull the connecting rope (3) or the operating rod (4) to drive the column (805) to swing. Since the column (805) is connected to the second support plate (206) through the second spring (801), and the ball groove (8031) of the bracket (803) and the ball (802) cooperate, when the column (805) swings, it can drive the bracket (803) to swing, thereby realizing the angle adjustment of the water spraying assembly (9), so that the nozzle (903) can accurately face the area to be sprayed; Step 4: Adjust the distance between the nozzles (903), start the motor (1001), the motor (1001) drives the second screw (1003) to rotate, the second screw (1003) drives the fixed block (1002) to move, the fixed block (1002) drives the second slot rod (1004) to move, the second slot rod (1004) drives the circular axis of the second connecting rod (1006) in its slide groove to move, so that the second connecting rod (1006) swings, the second connecting rod (1006) drives the first connecting rod (1005) to swing, under the joint action of the second connecting rod (1006) and the first connecting rod (1005), the slider (902) is driven to move, the slider (902) drives the nozzle (903) to move, and the distance between all the nozzles (903) is synchronously reduced or expanded to meet different spraying requirements. Step 5: operate the operating button on the pull rod (4) to start the water pump of the water tank (7), so that the spraying liquid enters the spray head (903) from the water tank (7) and is sprayed out through the nozzle (9031), and the spraying operation on the Huping dates begins.

10. The method for using the spraying device for reducing the fruit cracking rate of Huping jujube according to claim 9, characterized in that: The spraying operation starts from the flowering of Huping Jujube, and is carried out once every 5 days from the flowering period to the fruit expansion period. The solution is prepared according to the prescribed gibberellin and calcium concentrations to ensure that the fruit cracking rate of Huping Jujube is effectively reduced.

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