Spraying device suitable for pesticide for flue-cured tobacco powdery mildew

Abstract

The utility model discloses a spraying device suitable for flue-cured tobacco powdery mildew, which relates to the technical field of spraying devices and comprises a first infusion tube, a second infusion tube, a mounting tube, a locking pin, a first spring, a pressing mechanism and two sprayers. The first liquid conveying pipe and the second liquid conveying pipe are respectively communicated with one ejector; the mounting tube sleeves the outer side of the first infusion tube and is rotationally connected with the first infusion tube; the end, away from the ejector, of the second liquid conveying pipe communicates with the mounting pipe. N liquid conveying holes and N clamping grooves are formed in the first liquid conveying pipe in the circumferential direction, and clamping holes corresponding to the clamping grooves are formed in the mounting pipe; the pressing mechanism is movably connected with the mounting pipe, can extend into or be separated from the clamping hole, and is used for pressing the locking pin; the locking pin is located in the clamping hole, penetrates through the first spring and is inserted into the clamping groove. The mounting pipe can rotate relative to the first liquid conveying pipe, so that the circumferential positions of the two ejectors are changed, the two ejectors can be oppositely arranged, accordingly, pesticide is sprayed to the two faces of tobacco leaves, and powdery mildew of the tobacco leaves is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spray device technical field, especially in kind suitable for the spray device of tobacco white powdery mildew medicine. BACKGROUND

[0002] The tobacco leaf is vulnerable to various diseases and insect pests, such as powdery mildew, mosaic disease, etc. After the tobacco leaf suffers from powdery mildew, both sides of the tobacco leaf will be eroded, and spraying medicine can effectively control these hazards. In the prior art, a spraying device is usually used to spray medicine on the tobacco leaf. The patent for invention with publication number CN118104496A discloses a portable tobacco topping and bud suppression integrated device, which comprises a medicine storage box, a battery and a handle are arranged on two opposite sides of the medicine storage box, the handle is connected with an elongated rod, the elongated rod is connected with an intermediate rod, the intermediate rod is connected with a cutting head, the intermediate rod is embedded with a telescopic rod two, the telescopic rod two is connected with a blade, the cutting head is provided with a cutting groove and a medicine guiding ring groove, a medicine guiding opening and a plurality of medicine spraying openings are arranged at the top and bottom of the medicine guiding ring groove respectively, a medicine guiding pipe is connected with the medicine guiding opening, and a water pump is connected with the medicine guiding pipe. In the prior art, the spraying device can only spray medicine on one side of the tobacco leaf, which limits the medicine spraying range of the spraying equipment. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of spray device suitable for tobacco white powdery mildew medicine, to solve the technical problem that the spraying device in the prior art can only spray medicine on one side of the tobacco leaf, which limits the medicine spraying range of the spraying equipment.

[0004] To achieve the above purpose, the utility model provides a kind of spray device suitable for tobacco white powdery mildew medicine, comprising:

[0005] The spraying assembly comprises a first infusion tube, a second infusion tube, a mounting tube and two sprayers; the first infusion tube and the second infusion tube are respectively communicated with one of the sprayers; the mounting tube is sleeved outside the first infusion tube and is rotationally connected with the first infusion tube; one end of the second infusion tube away from the sprayer is communicated with the mounting tube; the first infusion tube is circumferentially provided with N infusion holes and N clamping grooves, the infusion holes are used to communicate the first infusion tube and the second infusion tube; the center axes of the infusion holes and the clamping grooves are all intersected with the same generatrix of the first infusion tube; the mounting tube is provided with a clamping hole corresponding to the clamping groove;

[0006] The locking assembly comprises a locking pin, a first spring and a pressing mechanism; the locking pin is located in the clamping hole, the locking pin passes through the first spring and is inserted into the clamping groove, and the locking pin is provided with a mounting block away from one end of the first infusion tube; the first spring is sleeved outside the locking pin, one end of the first spring abuts against the mounting block, and the other end of the first spring abuts against the bottom of the clamping hole; the pressing mechanism is movably connected with the mounting tube and can extend into or out of the clamping hole, when the pressing mechanism presses the mounting block to make the locking pin inserted into the clamping groove, the first spring is in a compressed state; when the first spring does not deform, the locking pin is separated from the clamping groove.

[0007] Further, the pressing mechanism comprises a pressing piece, a second spring and a connecting rod; the middle section of the pressing piece is rotationally connected with the mounting tube, one end of the second spring is connected with the pressing piece, and the other end of the second spring is connected with the mounting tube; one end of the pressing piece away from the second spring is movably connected with the connecting rod; the connecting rod is inserted into the clamping hole and abuts against the mounting block.

[0008] Further, the mounting tube is provided with a limiting block, the limiting block is located away from one end of the clamping hole, the limiting block is provided with a mounting hole for the connecting rod to pass through, and the diameters of the mounting hole are all smaller than the diameter of the clamping hole.

[0009] Further, the pressing piece is provided with a strip-shaped hole, the long side of the strip-shaped hole is parallel to the long side of the pressing piece, and the connecting rod is provided with a sliding block matched with the strip-shaped hole.

[0010] Further, the locking assembly further comprises a positioning piece and a positioning cylinder located at the axial two ends of the mounting tube respectively; the positioning piece is arranged on the outer side wall of the first infusion tube and abuts against the axial end of the mounting tube; the positioning cylinder is provided with a positioning groove and a threaded hole in communication with each other, the outer side wall of the first infusion tube is provided with threads, the positioning cylinder is threadedly connected with the first infusion tube, and the end of the mounting tube away from the positioning piece abuts against the groove bottom of the positioning groove.

[0011] Further, the locking assembly further comprises a first sealing ring and a second sealing ring sleeved outside the first infusion tube, the first sealing ring is located between the positioning piece and the mounting tube, and the second sealing ring is located between the groove bottom of the positioning groove and the mounting tube.

[0012] Further, the ejector comprises a spray head and a connecting pipe; one end of the connecting pipe is in communication with the spray head, the other end of the connecting pipe is used for being in communication with the first infusion tube or the second infusion tube, and the connecting pipe can be plastically deformed.

[0013] Further, the ejector further comprises a protective sleeve; the protective sleeve is sleeved outside the connecting pipe, one end of the protective sleeve is arranged on the spray head, and the other end of the protective sleeve is connected with the first infusion pipe or the second infusion pipe; and the protective sleeve is a flexible piece.

[0014] The pressing mechanism of the technical scheme of the utility model compresses the mounting block to make the locking pin pass through the clamping hole and insert into the clamping groove, thereby limiting the axial rotation of the mounting pipe relative to the first infusion pipe; at this time, the first spring is compressed by the mounting block; moving the pressing mechanism so that it no longer compresses the mounting block; the first spring can restore the original length and drive the locking pin to disengage from the clamping groove; at this time, the mounting pipe can rotate relative to the first infusion pipe; since the mounting pipe is circumferentially provided with N clamping grooves, manually rotating the mounting pipe by M*360 / N degrees, M and N are both integers and M is a multiple of N, so that the clamping hole can correspond to clamping grooves at different positions, thereby changing the circumferential position of the two ejectors, expanding the medicine spraying range of the ejectors, and enabling the spraying device to spray medicine on different positions of the tobacco leaves; when the two ejectors are arranged oppositely, they can be used to spray medicine on both sides of the tobacco leaves, effectively solving the tobacco white powdery mildew. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0016] Figure 1 It is a structure schematic view of the spraying device for tobacco white powdery mildew of the embodiments of the utility model.

[0017] Figure 2 It is a structure schematic view of the spraying device for tobacco white powdery mildew of the embodiments of the utility model. Figure 1 It is an enlarged view of A in the middle.

[0018] Figure: 101, first infusion pipe; 1011, infusion hole; 1012, clamping groove; 102, second infusion pipe; 103, mounting pipe; 1031, clamping hole; 104, ejector; 1041, connecting pipe; 1042, spray head; 201, locking pin; 202, first spring; 2031, pressing piece; 2032, second spring; 2033, connecting rod; 2034, strip-shaped hole; 2035, sliding block; 204, mounting block; 205, limiting block; 206, positioning piece; 207, positioning cylinder; 2071, positioning groove; 208, first sealing ring; 209, second sealing ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0020] It should be noted that all the directional indications (such as up, down, left, right, front, back, and the like) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0021] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0022] In addition, if the present application embodiments involve "first", "second" and the like, the "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that those skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0023] A spraying device for treating powdery mildew in flue-cured tobacco includes: a spraying assembly comprising a first infusion tube 101, a second infusion tube 102, an installation tube 103, and two sprayers 104; the first infusion tube 101 and the second infusion tube 102 are respectively connected to one sprayer 104; the installation tube 103 is sleeved on the outside of the first infusion tube 101 and rotatably connected to the first infusion tube 101; one end of the second infusion tube 102 away from the sprayer 104 is connected to the installation tube 103; the first infusion tube 101 is circumferentially provided with N infusion holes 1011 and N slots 1012, the infusion holes 1011 being used to connect the first infusion tube 101 and the second infusion tube 102; the central axes of the infusion holes 1011 and the slots 1012 all intersect the same generatrix of the first infusion tube 101; the installation tube 103 is provided with a corresponding slot 1012. The locking assembly includes a locking pin 201, a first spring 202, and a pressing mechanism. The locking pin 201 is located inside the locking hole 1031, passes through the first spring 202, and is inserted into the slot 1012. A mounting block 204 is provided at the end of the locking pin 201 away from the first infusion tube 101. The first spring 202 is sleeved on the outside of the locking pin 201. One end of the first spring 202 abuts against the mounting block 204, and the other end of the first spring 202 abuts against the bottom of the locking hole 1031. The pressing mechanism is movably connected to the mounting tube 103 and can extend into or out of the locking hole 1031. When the pressing mechanism presses the mounting block 204 to insert the locking pin 201 into the slot 1012, the first spring 202 is in a compressed state. When the first spring 202 does not deform, the locking pin 201 disengages from the slot 1012.

[0024] The first infusion tube 101 is used to connect to an external medicine storage tank. The medicine storage tank is equipped with a pump body, which pumps the medicine into the first infusion tube 101. A portion of the medicine flows from the infusion port 1011 to the second infusion tube 102, allowing the medicine to be sprayed out from the two injectors 104. When the pressing mechanism presses the mounting block 204, the locking pin 201 passes through the snap-fit ​​hole 1031 and inserts into one of the slots 1012 on the first infusion tube 101. At this time, the axial rotation of the mounting tube 103 relative to the first infusion tube 101 is restricted, while the first spring 202 is compressed by the mounting block 204. Moving the pressing mechanism axially along the snap-fit ​​hole 1031 to stop pressing the mounting block 204, the first spring 202 can return to its original length and drive the locking pin 201 to disengage from the slot 1012. At this time, the mounting tube 103 can rotate relative to the first infusion tube 101. Since the mounting tube 103 has N circumferentially arranged locking pins, the mounting tube 103 can rotate. The slot 1012 allows for manual rotation of the mounting tube 103 to M*360 / N degrees, where M and N are both integers and M is a multiple of N. This allows the locking hole 1031 to correspond to different positions of the slot 1012, thereby changing the circumferential position of the two sprayers 104 and expanding their spraying range. This enables the spraying device to spray different parts of the tobacco leaves. For example, the two sprayers 104 can be positioned in the same direction and spray the same side of the tobacco leaf, or they can be positioned opposite each other and spray both sides of the tobacco leaf. The operator can adjust the circumferential angle between the two sprayers 104 as needed. When the two sprayers 104 are positioned opposite each other, they can be used to spray both sides of the tobacco leaf, effectively solving the problem of powdery mildew. Since the central axes of the infusion hole 1011 and the slot 1012 both intersect the same generatrix of the first infusion tube 101, when the snap-fit ​​hole 1031 corresponds to the slot 1012 at different positions, the through hole at the connection between the mounting tube 103 and the second infusion tube 102 can be aligned with the infusion hole 1011.

[0025] In one embodiment, the pressing mechanism includes a pressing member 2031, a second spring 2032, and a connecting rod 2033; the middle section of the pressing member 2031 is rotatably connected to the mounting tube 103, one end of the second spring 2032 is connected to the pressing member 2031, and the other end of the second spring 2032 is connected to the mounting tube 103; the end of the pressing member 2031 away from the second spring 2032 is movably connected to the connecting rod 2033; the connecting rod 2033 is inserted into the snap-fit ​​hole 1031 and abuts against the mounting block 204.

[0026] The second spring 2032 is always in a deformed state. The second spring 2032 can be a compression spring. When both ends of the second spring 2032 are connected to the pressing member 2031 and the mounting tube 103 respectively, the second spring 2032 is in a compressed state. The second spring 2032 applies a spring force away from the mounting tube 103 to the pressing member 2031. This spring force causes the pressing member 2031 to rotate forward relative to the mounting tube 103, causing the end of the pressing member 2031 away from the second spring 2032 to drive the connecting rod 2033 into the snap-fit ​​hole 1031 and press against the mounting block 204. At this time, the mounting block 204 compresses the first spring 202, causing it to deform, so that the locking pin 201 passes through the snap-fit ​​hole 1031 and inserts into the slot 1012. It should be noted that the spring force of the second spring 2032 is greater than that of the first spring 202.

[0027] When the operator manually presses the end of the pressing member 2031 close to the second spring 2032, the second spring 2032 is further compressed, and the pressing member 2031 rotates in the opposite direction to the mounting tube 103. The mounting member drives the connecting rod 2033 to move axially along the snap-fit ​​hole 1031, so that the connecting rod 2033 moves away from the mounting block 204. At this time, the first spring 202 returns to its original length and drives the locking pin 201 to move axially through the mounting block 204, so that the locking pin 201 disengages from the slot 1012. At this time, the mounting tube 103 can be moved to rotate around the first infusion tube 101.

[0028] In one embodiment, the mounting tube 103 is provided with a limiting block 205, which is located at the end of the snap-fit ​​hole 1031 away from the mounting tube 103. The limiting block 205 is provided with mounting holes for the connecting rod 2033 to pass through, and the diameter of each mounting hole is smaller than the diameter of the snap-fit ​​hole 1031. The limiting block 205 is used to prevent the mounting block 204 from disengaging from the snap-fit ​​hole 1031. When the mounting block 204 abuts against the limiting block 205, the end of the locking pin 201 away from the mounting block 204 disengages from the slot 1012 and is located within the snap-fit ​​hole 1031.

[0029] In one embodiment, the pressing member 2031 is provided with a strip hole 2034 and the long side of the strip hole 2034 is parallel to the long side of the pressing member 2031, and the connecting rod 2033 is provided with a slider 2035 that cooperates with the strip hole 2034.

[0030] When the pressing member 2031 rotates relative to the mounting tube 103, the distance between the rotation center of the pressing member 2031 and the slider 2035 changes. At this time, the slider 2035 can move along the strip hole 2034 to avoid the pressing member 2031 and the connecting rod 2033 squeezing each other at the connection, which would cause deformation at the connection, or even breakage of the connection between the pressing member 2031 and the connecting rod 2033.

[0031] In one embodiment, the locking assembly further includes a positioning element 206 and a positioning cylinder 207 located at the two axial ends of the mounting tube 103, respectively; the positioning element 206 is disposed on the outer side wall of the first infusion tube 101 and abuts against the axial end of the mounting tube 103; the positioning cylinder 207 is provided with a positioning groove 2071 and a threaded hole that are interconnected, the outer side wall of the first infusion tube 101 is provided with threads, and the positioning cylinder 207 is threadedly connected to the first infusion tube 101; the end of the mounting tube 103 away from the positioning element 206 abuts against the bottom of the positioning groove 2071.

[0032] Tighten the positioning cylinder 207 and the first infusion tube 101. At this time, the bottom of the positioning groove 2071 of the positioning cylinder 207 and the positioning element 206 simultaneously abut against both ends of the installation tube 103 to achieve axial positioning of the installation tube 103, so that the through hole at the connection between the installation tube 103 and the second infusion tube 102 communicates with the infusion hole 1011 of the first infusion tube 101. Before rotating the installation cylinder, the positioning cylinder 207 can be loosened to avoid excessive friction between the installation cylinder and the bottom of the positioning groove 2071, which would prevent the installation cylinder from rotating relative to the first infusion tube 101.

[0033] In one embodiment, the locking assembly further includes a first sealing ring 208 and a second sealing ring 209 sleeved on the outside of the first infusion tube 101. The first sealing ring 208 is located between the positioning member 206 and the mounting tube 103; the second sealing ring 209 is located between the bottom of the positioning groove 2071 and the mounting tube 103.

[0034] The first sealing ring 208 and the second sealing ring 209 are used to prevent the liquid medicine from flowing out from both sides of the axial direction of the installation tube 103.

[0035] In one embodiment, the injector 104 includes a nozzle 1042 and a connecting pipe 1041; one end of the connecting pipe 1041 is connected to the nozzle 1042, and the other end of the connecting pipe 1041 is used to connect to a first infusion pipe 101 or a second infusion pipe 102, and the connecting pipe 1041 is plastically deformable.

[0036] The connecting tube 1041 can be made of copper, aluminum, or other materials, which makes it highly malleable and easy to bend. Operators can manually bend the connecting tube 1041 to adjust the spatial position between the two nozzles 1042, allowing the two nozzles 1042 to spray pesticides on plants with different structural shapes.

[0037] In one embodiment, the injector 104 further includes a protective sleeve; the protective sleeve is fitted over the outside of the connecting pipe 1041, one end of the protective sleeve is disposed on the nozzle 1042, and the other end of the protective sleeve is connected to the first infusion pipe 101 or the second infusion pipe 102, and the protective sleeve is a flexible component.

[0038] The protective sleeve may be made of, but is not limited to, rubber materials, such as natural rubber, neoprene rubber (CR), and nitrile rubber (NBR). The protective sleeve can prevent the connecting pipe 1041 from rusting and avoid the connecting pipe 1041 from becoming less deformable after rusting.

[0039] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A spraying device suitable for applying pesticides to powdery mildew in flue-cured tobacco, characterized in that, include: The injection assembly includes a first infusion tube, a second infusion tube, a mounting tube, and two injectors. The first and second infusion tubes are each connected to one of the injectors. The mounting tube is sleeved on the outside of the first infusion tube and rotatably connected to it. The end of the second infusion tube away from the injector is connected to the mounting tube. The first infusion tube has N infusion holes and N slots circumferentially, the infusion holes being used to connect the first and second infusion tubes. The central axes of the infusion holes and the slots intersect the same generatrix of the first infusion tube. The mounting tube has snap-fit ​​holes corresponding to the slots. The locking assembly includes a locking pin, a first spring, and a pressing mechanism. The locking pin is located within the locking hole, passes through the first spring, and is inserted into the locking groove. A mounting block is provided at the end of the locking pin away from the first infusion tube. The first spring is sleeved on the outside of the locking pin, with one end abutting against the mounting block and the other end abutting against the bottom of the locking hole. The pressing mechanism is movably connected to the mounting tube and can extend into or disengage from the locking hole. When the pressing mechanism presses the mounting block to insert the locking pin into the locking groove, the first spring is compressed. When the first spring does not deform, the locking pin disengages from the locking groove.

2. The spraying device for treating powdery mildew in flue-cured tobacco as described in claim 1, characterized in that, The pressing mechanism includes a pressing member, a second spring, and a connecting rod; the middle section of the pressing member is rotatably connected to the mounting tube, one end of the second spring is connected to the pressing member, and the other end of the second spring is connected to the mounting tube; the end of the pressing member away from the second spring is movably connected to the connecting rod; the connecting rod is inserted into the snap-fit ​​hole and abuts against the mounting block.

3. The spraying device for treating powdery mildew in flue-cured tobacco as described in claim 2, characterized in that, The mounting tube is provided with a limiting block, which is located at the end of the mounting tube away from the snap-fit ​​hole. The limiting block is provided with a mounting hole for the connecting rod to pass through, and the diameter of the mounting hole is smaller than the diameter of the snap-fit ​​hole.

4. The spraying device for treating powdery mildew in flue-cured tobacco as described in claim 2, characterized in that, The pressing member has a strip-shaped hole, and the long side of the strip-shaped hole is parallel to the long side of the pressing member. The connecting rod has a slider that mates with the strip-shaped hole.

5. The spraying device for treating powdery mildew in flue-cured tobacco as described in claim 1, characterized in that, The locking assembly further includes a positioning element and a positioning cylinder located at both axial ends of the mounting tube; the positioning element is disposed on the outer side wall of the first infusion tube and abuts against the axial end of the mounting tube; the positioning cylinder is provided with a positioning groove and a threaded hole that are interconnected, the outer side wall of the first infusion tube is provided with threads, and the positioning cylinder is threadedly connected to the first infusion tube; the end of the mounting tube away from the positioning element abuts against the bottom of the positioning groove.

6. The spraying device for treating powdery mildew in flue-cured tobacco as described in claim 5, characterized in that, The locking assembly further includes a first sealing ring and a second sealing ring sleeved on the outside of the first infusion tube. The first sealing ring is located between the positioning member and the mounting tube; the second sealing ring is located between the bottom of the positioning groove and the mounting tube.

7. The spraying device for treating powdery mildew in flue-cured tobacco as described in claim 1, characterized in that, The injector includes a nozzle and a connecting pipe; one end of the connecting pipe is connected to the nozzle, and the other end of the connecting pipe is used to connect to the first infusion pipe or the second infusion pipe, and the connecting pipe is plastically deformable.

8. The spraying device for treating powdery mildew in flue-cured tobacco as described in claim 7, characterized in that, The injector also includes a protective sleeve; the protective sleeve is fitted over the outside of the connecting pipe, one end of the protective sleeve is disposed on the nozzle, and the other end of the protective sleeve is connected to the first infusion pipe or the second infusion pipe.

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