Powder spraying head, powder spraying tube and powder sprayer capable of enabling powder at outlet to be uniformly positively charged

Abstract

The utility model discloses a powder spraying head, a powder spraying tube and a powder sprayer capable of enabling powder at an outlet to be uniformly positively charged. The powder spraying head comprises a flat-mouth powder spraying head, the at least one layer of positive charge release net is arranged in the direction of the cross section of the outlet channel of the flat-mouth powder sprayer and is electrically connected with the positive pole output end of an external electrostatic generator; when flowing through the flat-mouth powder sprayer, powder is in contact with the positive charge release net and is uniformly positively charged. The problems that in the prior art, powder is not electrified uniformly and cannot be effectively adsorbed and combined with a target object are solved, the use efficiency of the powder is improved, and the device particularly has high practicability in the field of agricultural fruit tree pollination.

Description

Technical Field

[0001] This utility model relates to the field of artificial pollination technology, specifically to a powder spraying head, powder spraying tube, and powder sprayer that uniformly carries a positive charge on the outlet powder. Background Technology

[0002] In the fields of fruit tree pollination and pest control in agricultural production, handheld electric pollinators, large dusters, vehicle-mounted dusting devices, and electric pest control dusters are widely used. These devices typically use fans or air pumps as power sources to spray pollen or pesticide powder onto the surface of the target object (flowers or pests) to achieve pollination or pest control. Compared to the traditional manual point-to-point pollination and spraying method, these electric dusting devices significantly improve operational efficiency.

[0003] However, existing technologies still have several problems that need to be addressed: First, due to the influence of wind, the sprayed pollen or powder is easily dispersed, resulting in insufficient target positioning accuracy and poor adhesion between the powder and the target object. A large amount of powder suspends in the air and then settles to the ground, causing resource waste and reducing operational efficiency. Second, although the published patent (patent number: 202420522891.6) proposes a technical solution to improve utilization by making the powder carry a positive charge, this solution has obvious flaws. This patent sets four positive charge generators at intervals inside the pipe. Due to the large spacing between the generators, the powder near the generators is easily charged, while the powder farther away is difficult to fully charge, ultimately resulting in uneven powder charging. This prevents effective adsorption and binding with the target object, failing to significantly improve powder utilization. Simultaneously, the installation distance between the positive charge generators and the powder spraying head causes positively charged powder to easily adhere to the inner wall of the powder spraying head during transmission, causing blockage of the powder spraying channel and poor powder output, further aggravating powder loss and increasing operating costs. The aforementioned technical problems severely restrict the application efficiency of electric powder spraying equipment, and innovative technical solutions are urgently needed to solve them. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a powder spraying head, powder spraying tube and powder sprayer that make the exit powder uniformly positively charged.

[0005] This utility model discloses a powder spraying head that uniformly carries a positive charge on the outlet powder, comprising:

[0006] Flat-nozzle powder spray nozzle;

[0007] At least one layer of positive charge release mesh is arranged along the cross-sectional direction of the outlet channel of the flat-nozzle powder spraying head and is electrically connected to the positive output terminal of an external electrostatic generator; when the powder flows through the flat-nozzle powder spraying head, it comes into contact with the positive charge release mesh and becomes uniformly positively charged.

[0008] As a further improvement of this utility model, the flat-mouth powder spray head includes a spray head body, a spray mask, and a clamping frame;

[0009] The nozzle body has an outlet end with a mating surface for the positive charge release mesh to be laid flat.

[0010] At least one layer of the positive charge release mesh is pressed against the mating surface by the clamping frame; the spray mask is snapped into the outlet end of the nozzle body and presses against the clamping frame.

[0011] As a further improvement of this utility model, the nozzle body is a nozzle body with a rectangular outlet cavity, the inner side of the rectangular outlet cavity forms the mating surface, at least one layer of the positive charge release mesh is laid flat in the rectangular outlet cavity and pressed by the pressing frame; the spray mask is snapped into the rectangular outlet cavity and presses the pressing frame.

[0012] As a further improvement of this utility model, the spray mask has a raised portion around one side facing the rectangular outlet cavity, the spray mask is snapped into the rectangular outlet cavity through the raised portion, and the bottom end of the raised portion abuts against the clamping frame; the spray mask is provided with a through hole that matches the outlet of the nozzle body.

[0013] As a further improvement of this utility model, when multiple layers of the positive charge release net are provided, adjacent positive charge release nets are spaced apart by conductive spacer strips, and the clamping frame is pressed against the outside of the outermost layer of the positive charge release net.

[0014] As a further improvement of this utility model, the interval between two adjacent layers of the positive charge release mesh is 1-2 cm.

[0015] As a further improvement of this utility model, the positive charge release mesh is a conductive metal mesh, and the aperture of the positive charge release mesh is greater than 0.5 mm.

[0016] This utility model discloses a powder spraying pipe that uniformly carries a positive charge on the outlet powder, comprising a powder conveying pipe, a connecting elbow, and the aforementioned powder spraying head arranged sequentially along the powder direction.

[0017] As a further improvement of this utility model, the included angle of the connecting elbow is 90 degrees to 180 degrees.

[0018] This utility model discloses a powder sprayer that uniformly carries a positive charge on the outlet powder, including an electrostatic generator, a powder spraying device, and the aforementioned powder spraying tube.

[0019] The positive output terminal of the electrostatic generator is electrically connected to the positive charge release network of the powder spraying head; the negative output terminal of the electrostatic generator is connected to the outer shell of the powder spraying device.

[0020] The inlet end of the powder spraying pipe is connected to the outlet end of the powder spraying device.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This invention features a simple structure, convenient assembly, and high safety and reliability. By setting at least one layer of positive charge release mesh along the cross-sectional direction of the outlet channel of the flat-mouth powder spraying head and electrically connecting it to the positive electrode of the electrostatic generator, it achieves full contact between the powder and the positive charge release mesh as the powder flows through the spraying head, uniformly carrying a positive charge. This solves the problems of uneven powder charging and inability to effectively adsorb and combine with the target material in the prior art, improving the efficiency of powder use. It is particularly practical in the field of agricultural fruit tree pollination.

[0023] This invention features a flat-mouth powder spraying head composed of a nozzle body, a spray mask, and a clamping frame. The nozzle body's outlet end forms a mating surface, the positive charge release mesh is fixed by the clamping frame, and the spray mask is snapped onto the outlet end and pressed against the clamping frame. This optimizes the powder spraying head structure, ensuring a stable installation of the positive charge release mesh and a stable powder spraying head structure. Simultaneously, the powder transport path within the powder spraying head is more optimized, reducing the possibility of powder adsorption on the inner wall of the head, avoiding problems such as powder channel blockage and poor powder output, reducing powder loss, and lowering operating costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a powder spraying head that uniformly carries a positive charge on the exiting powder, according to an embodiment of the present invention.

[0025] Figure 2 This is an exploded view of the structure of a powder spraying head that uniformly carries a positive charge on the exit powder, according to one embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the installation of a positive charge release net for a powder spraying head that uniformly carries a positive charge on the exiting powder, according to one embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of the structure of a powder spraying pipe that uniformly carries a positive charge on the outlet powder, as disclosed in one embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of the structure of a powder sprayer that uniformly carries a positive charge on the outlet powder, as disclosed in one embodiment of the present invention.

[0029] In the picture:

[0030] 1. Flat-mouth powder spray nozzle; 11. Nozzle body; 12. Rectangular outlet mouth; 121. Mounting hole; 13. Positive charge release mesh; 14. Pressing frame; 15. Spray mask; 151. Protrusion; 16. Screw; 2. Connecting elbow; 3. Powder conveying pipe; 4. Powder spraying device; 5. Static generator; 6. First conductor. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings:

[0035] like Figure 1 As shown, a powder spraying head according to the present invention provides a powder spraying head that uniformly carries a positive charge on the outlet powder, comprising a flat powder spraying head 1 and at least one layer of positive charge release mesh 13: wherein, the at least one layer of positive charge release mesh 13 is arranged along the cross-sectional direction of the outlet channel of the flat powder spraying head 1 and is electrically connected to the positive output terminal of an external electrostatic generator 5; when the powder flows through the flat powder spraying head 1, it contacts the positive charge release mesh 13 and becomes uniformly positively charged.

[0036] In this embodiment, the structure is simple, easy to assemble, safe and reliable. By setting at least one layer of positive charge release mesh 13 along the cross-sectional direction of the outlet channel of the flat powder spraying head 1 and electrically connecting it to the positive electrode of the electrostatic generator 5, the powder can make full contact with the positive charge release mesh 13 when it flows through the powder spraying head, and uniformly carry a positive charge. This solves the problem of uneven powder charge and inability to effectively adsorb and combine with the target material in the prior art, and improves the efficiency of powder use. It is particularly practical in the field of agricultural fruit tree pollination.

[0037] Specifically:

[0038] like Figure 2 As shown, in the above embodiment, preferably, the flat-mouth powder spray head 1 includes a nozzle body 11, a spray mask 15, and a clamping frame 14; wherein, the outlet end of the nozzle body 11 forms a mating surface for the positive charge release mesh 13 to be laid flat; at least one layer of positive charge release mesh 13 is pressed onto the mating surface by the clamping frame 14; the spray mask 15 is snapped onto the outlet end of the nozzle body 11 and presses against the clamping frame 14.

[0039] In the above embodiments, preferably, the nozzle body 11 is a nozzle body 11 with a rectangular outlet cavity 12, that is, the nozzle body 11 is composed of a fan-shaped flat mouth and a rectangular outlet cavity 12. The rectangular outlet cavity 12 is disposed on the outlet side of the flat mouth, and the rectangular outlet cavity 12 is open on the side away from the flat mouth. A through hole adapted to the outlet side of the flat mouth is provided on the side close to the flat mouth. The rectangular outlet cavity 12 can be welded to the flat mouth. The inner side of the rectangular outlet cavity 12, that is, the inner side near the flat opening, forms a mating surface. The rectangular outlet cavity 12 forms a space for installing at least one layer of positive charge release mesh 13 and a clamping frame 14. A through mounting hole 121 is provided on one side of the rectangular outlet cavity 12. In actual installation, at least one layer of positive charge release mesh 13 is laid flat in the rectangular outlet cavity 12 and clamped by the clamping frame 14. The two ends of the clamping frame 14 are fixedly connected to the rectangular outlet cavity 12 by screws 16. One end of the first wire 6 passes through the mounting hole 121 and is connected to the screw 16 that fixes the positive charge release mesh 13. The other end of the first wire 6 is electrically connected to the positive output terminal of the electrostatic generator 5.

[0040] In the above embodiment, preferably, the spray mask 15 has a protrusion 151 arranged around the side facing the rectangular outlet 12. The spray mask 15 is snapped into the rectangular outlet 12 through the protrusion 151, and the bottom end of the protrusion 151 presses against the clamping frame 14. The spray mask 15 is provided with a through hole that matches the outlet of the nozzle body 11 so as to realize the spraying of powder.

[0041] In the above embodiments, preferably, when multiple layers of positive charge release nets 13 are provided, adjacent positive charge release nets 13 are spaced apart by conductive spacers, and the clamping frame 14 is pressed against the outside of the outermost positive charge release net 13. In this embodiment, the interval between two adjacent layers of positive charge release nets 13 is 1-2 cm.

[0042] In the above embodiments, preferably, the positive charge release mesh 13 is a conductive metal mesh, and the aperture of the positive charge release mesh 13 is greater than 0.5 mm.

[0043] In the above embodiments, preferably, the positive charge release net 13 can also be installed inside the spray mask 15 to achieve the same function as described above.

[0044] In this embodiment, a flat-mouth powder spraying head 1 is configured, consisting of a nozzle body 11, a spray mask 15, and a clamping frame 14. The nozzle body 11 forms a mating surface at its outlet end. The positive charge release mesh 13 is fixed by the clamping frame 14, and the spray mask 15 is snapped onto the outlet end and clamps the clamping frame 14. This optimizes the powder spraying head structure, ensuring a stable installation of the positive charge release mesh 13 and a stable powder spraying head structure. Simultaneously, the powder transport path within the powder spraying head is more rational, reducing the possibility of powder adsorption on the inner wall of the powder spraying head, avoiding problems such as powder channel blockage and poor powder output, reducing powder loss, and lowering operating costs.

[0045] like Figure 4 As shown, the powder spraying pipe according to this utility model, which uniformly carries a positive charge on the outlet powder, includes a powder conveying pipe 3, a connecting elbow 2, and the aforementioned powder spraying head arranged sequentially along the powder direction. The included angle of the connecting elbow 2 is 90 degrees to 180 degrees.

[0046] In the above embodiments, preferably, the powder conveying pipe 3 can be installed perpendicular to the opening surface of the powder spraying head, or it can be installed longitudinally to the opening surface of the powder spraying head.

[0047] In the above embodiments, preferably, the powder conveying pipe 3, the connecting elbow 2, and the powder spraying head are all made of insulating material.

[0048] like Figure 5 As shown, a powder sprayer according to this utility model, which uniformly carries a positive charge on the outlet powder, includes a powder spraying device 4, an electrostatic generator 5, and the aforementioned powder spraying tube. The positive output terminal of the electrostatic generator 5 is electrically connected to the positive charge release network 13 of the powder spraying head via a first wire 6. The negative output terminal of the electrostatic generator 5 is connected to the housing of the powder spraying device 4. The power lines 8 of both the electrostatic generator 5 and the powder spraying device 4 are electrically connected to an external power source. The inlet end of the powder spraying tube is connected to the outlet end of the powder spraying device 4.

[0049] In the above embodiment, preferably, the positive output terminal of the electrostatic generator 5 is connected to the screw 16 that fixes the positive charge release net 13 after passing through the mounting hole 121 of the rectangular outlet cavity 12 via the first wire 6, so as to provide positive charge to the positive charge release net 13. The negative output terminal of the electrostatic generator 5 is connected to the outer shell of the powder spraying device 4 via the second wire 7. The power lines 8 of the electrostatic generator 5 and the powder spraying device 4 are both electrically connected to an external power source. The inlet end of the powder conveying pipe 3 connected to the flat powder spraying head 1 is connected to the outlet end of the powder spraying device 4.

[0050] In the above embodiments, preferably, the powder sprayer can be applied to electric pollinators, powder sprayers, fruit tree pesticide spraying, and pest control.

[0051] In this embodiment, by setting a flat-mouthed powder spraying head 1 with a positive charge release mesh 13, the sprayed pollen or powder can be uniformly charged with a positive charge and can be sprayed out from the powder spraying nozzle at the shortest distance. Since the fruit tree or other target object is directly connected to the ground, when the pollen or powder is uniformly charged with a positive charge and sprayed out, it will directly and tightly combine with the flowers or other target objects on the fruit tree, instantly completing the release of electrons. This allows the pollen or powder to effectively combine with the pistil or target object in a targeted manner, maximizing the utilization rate of the pollen or powder and significantly improving the powder spraying effect.

[0052] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A powder spraying head that uniformly imparts a positive charge to the outlet powder, characterized in that, include: Flat-nozzle powder spray nozzle; At least one layer of positive charge release mesh is arranged along the cross-sectional direction of the outlet channel of the flat-nozzle powder spraying head and is electrically connected to the positive output terminal of an external electrostatic generator; when the powder flows through the flat-nozzle powder spraying head, it comes into contact with the positive charge release mesh and becomes uniformly positively charged.

2. The powder spraying head according to claim 1, characterized in that, The flat-mouth powder spray head includes a spray head body, a spray mask, and a clamping frame; The nozzle body has an outlet end with a mating surface for the positive charge release mesh to be laid flat. At least one layer of the positive charge release mesh is pressed against the mating surface by the clamping frame; the spray mask is snapped into the outlet end of the nozzle body and presses against the clamping frame.

3. The powder spraying head according to claim 2, characterized in that, The nozzle body is a nozzle body with a rectangular outlet cavity. The inner side of the rectangular outlet cavity forms the mating surface. At least one layer of the positive charge release mesh is laid flat in the rectangular outlet cavity and pressed by the clamping frame. The spray mask is snapped into the rectangular outlet cavity and presses the clamping frame.

4. The powder spraying head according to claim 3, characterized in that, The spray mask has protrusions around one side facing the rectangular outlet, and the spray mask is snapped into the rectangular outlet through the protrusions, with the bottom end of the protrusions pressing against the clamping frame; the spray mask is provided with a through hole that matches the outlet of the nozzle body.

5. The powder spraying head according to claim 2, characterized in that, When multiple layers of the positive charge release network are provided, adjacent positive charge release networks are spaced apart by conductive spacers, and the clamping frame is pressed against the outside of the outermost positive charge release network.

6. The powder spraying head according to claim 5, characterized in that, The spacing between two adjacent layers of the positive charge release network is 1-2 cm.

7. The powder spraying head according to claim 1, characterized in that, The positive charge release mesh is a conductive metal mesh with a pore size greater than 0.5 mm.

8. A powder spraying pipe that uniformly carries a positive charge on the outlet powder, characterized in that, It includes a powder conveying pipe, a connecting elbow, and a powder spraying head as described in any one of claims 1-6, arranged sequentially along the powder direction.

9. The powder spraying pipe according to claim 8, characterized in that, The included angle of the connecting elbow is 90 degrees to 180 degrees.

10. A powder sprayer that uniformly imparts a positive charge to the outlet powder, characterized in that, Includes an electrostatic generator, a powder spraying device, and the powder spraying pipe as described in claim 8; The positive output terminal of the electrostatic generator is electrically connected to the positive charge release network of the powder spraying head; the negative output terminal of the electrostatic generator is connected to the outer shell of the powder spraying device. The inlet end of the powder spraying pipe is connected to the outlet end of the powder spraying device.

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