Impeller and handheld spraying device for microminiature insects and mites

Abstract

The utility model discloses an impeller and a handheld spraying device for microminiature insects and mites, the impeller comprises a rotating body with a certain length and a plurality of blades arranged on the peripheral side of the rotating body, the rotating body is a hollow cylinder, the plurality of blades are uniformly arranged at intervals along the circumferential direction of the peripheral side, and the rotating body is a hollow cylinder. The extension direction of each blade is in the length direction of the rotating body, the plurality of blades are spiral, and the spiral angle is between 5 degrees and 45 degrees; the device comprises the impeller. Through the arrangement of the impeller, continuous discharging can be achieved without interruption, and damage to predatory mites caused by friction and material blocking is reduced; the release efficiency and uniformity can be improved, and damage to predatory mites is small. After the device sprays the predatory mites, the survival rate of the predatory mites is 95.78%, the loss rate of the predatory mites is only 4.22%, and the loss of the device to the predatory mites is extremely low.

Description

Technical Field

[0001] The utility model relates to the technical field of sprayers, in particular to an impeller and a handheld spraying device for micro insects and mites. Background Art

[0002] Predatory mites are an important natural enemy resource that can prey on micro-pests such as spider mites, gall mites, tarsonemes, thrips, fungus gnats, whiteflies, etc. Compared with chemical pesticides, predatory mites are friendly to the environment and surrounding non-target organisms, and are small in size, fast in development, strong in reproductive capacity, and strong in predation ability. They can now be produced on a large scale with low cost and high efficiency, and are widely used in the prevention and control of pests on economic crops such as tobacco, flowers, and fruits.

[0003] Since predatory mites have the special ability to eliminate harmful mites, using them to control harmful mites and protect crops can often achieve significant results. Therefore, once they were discovered, they attracted the attention of agricultural scientists from all over the world, and they vigorously carried out indoor artificial breeding. They can go to any place where they are needed according to people's needs, and they can also be produced in batches according to plans. Predatory mites are usually artificially propagated on a large scale using feed mites, and feed mites use agricultural and sideline products such as wheat bran and rice bran as food. These agricultural and sideline products can not only serve as food for feed mites, but also as places for predatory mites to live and hide. Therefore, the predatory mite products we usually refer to are actually mixtures with materials such as wheat bran and vermiculite as the matrix. The predatory mites mentioned below are all mixtures with the matrix. And because the matrix of predatory mites contains materials such as wheat bran and vermiculite, when using traditional release devices to release predatory mites, it will cause losses to the predatory mites.

[0004] The prior art discloses a special mite spray gun with a patent application number of "201410394189.7", which is used to spray predatory mites. However, when the device is used, the rotating wheel 11 installed below the outlet 10 of the small funnel 6 often has "stuck material and discontinuous material feeding problems". On the one hand, the predatory mites at the stuck material place will be subjected to excessive extrusion and damage. On the other hand, the intermittent stuck material and discontinuous material feeding problems will also cause the rotation of the motor providing the power source to be more laborious, increasing the motor load. In addition, the traditional instruments for releasing predatory mites can be roughly divided into several categories: release cups, release bottles, release bags, and drum-type releasers; among them, the release cups, release bottles, and release bags are three types of instruments that release predatory mites, and there are problems of large labor consumption and uneven release. The drum-type releaser has the problem that the predatory mites and their substrates are constantly rotating and rubbing in the drum during the release process, and the extrusion and friction in this process cause the loss of predatory mites. In addition, the use of a roller-type release device requires the releaser to be lifted, which is time-consuming and labor-intensive, and has low release efficiency.

[0005] Therefore, how to provide a component that can avoid the above-mentioned disadvantages has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0006] In order to achieve the above purpose, the utility model provides an impeller. The specific technical solution is as follows:

[0007] An impeller comprises a rotating body with a length and a plurality of blades arranged on the outer peripheral side of the rotating body. The rotating body is a hollow cylindrical body. The plurality of blades are arranged at uniform intervals along the circumferential direction of the peripheral side, and the extension direction of each blade is along the length direction of the rotating body. The plurality of blades are all spiral and the spiral angle is between 5° and 45°.

[0008] Preferably, each blade includes a top side away from the rotating body, and the front and rear ends of the top side along the length direction are symmetrically arranged arcuate end faces, and the outward convex direction of each arcuate end face is a direction away from the rotating body.

[0009] Preferably, the impeller is made of a flexible material, and the flexible material is TPU or silica gel.

[0010] The utility model also provides a handheld spraying device for micro insects and mites, comprising the impeller described above, and also comprising a conveying body with a conveying channel inside, one end of the conveying body is provided with an outlet connected to the conveying channel, and the other end of the outlet is provided with a wind source, the air outlet of the wind source is connected to the conveying channel, a feed channel located above the conveying channel is provided on the conveying body at a position downstream of the air outlet, the feed channel is arranged in a vertical direction and is connected to the conveying channel, the impeller is rotatably installed on the feed channel and the length direction of the impeller is arranged in a horizontal direction, and also comprises a driving source for driving the impeller to rotate, and also comprises a hand-held part, which is fixedly connected to the conveying body for hand-holding.

[0011] Preferably, the discharge port is connected to a trumpet-shaped expansion port, a cone is installed inside the trumpet-shaped expansion port, the axis of the cone and the trumpet-shaped expansion port coincide with each other, the tip of the cone is located on the inner side of the trumpet-shaped expansion port, and the bottom end is located on the outer side of the trumpet-shaped expansion port, and there is a discharge gap between the inner circumference of the trumpet-shaped expansion port and the outer circumference of the cone.

[0012] Preferably, the driving source is a driving motor, which is installed in the conveying body at a position adjacent to the feeding channel, and the output shaft of the driving motor is arranged in the horizontal direction and is fixedly connected to the rotating body.

[0013] Preferably, the wind source is a blower.

[0014] Preferably, it also includes an electronic speed regulator, which is electrically connected to the drive motor, and the electronic speed regulator is electrically connected to a plurality of spray speed adjustment buttons, which are arranged on the hand-held part. The electronic speed regulator is also electrically connected to the blower, and a plurality of wind speed adjustment buttons are also arranged on the hand-held part, and the wind speed adjustment buttons are electrically connected to the electronic speed regulator.

[0015] Preferably, a feed funnel is further included, which is installed at the inlet end of the feed channel.

[0016] Preferably, the conveying channel comprises a large-diameter channel and a small-diameter channel which are arranged and communicated along an upstream and downstream direction, and the feed channel is located above the large-diameter channel.

[0017] The device provided has the following technical effects:

[0018] The impeller can be set to achieve continuous feeding without interruption, reduce the damage to predatory mites caused by friction and jamming, improve release efficiency and uniformity, and cause less damage to predatory mites. After the device sprays predatory mites, the survival rate of predatory mites is 95.78%, and the loss rate is only 4.22%. The device has extremely low loss to predatory mites.

[0019] In addition, the arrangement of the blades can make the motor rotation more labor-saving and reduce the motor load.

[0020] In addition, the front and rear ends of the blades are symmetrically arranged arc-shaped end surfaces, which can reduce damage to predatory mites and reduce the risk of being blocked by the matrix.

[0021] Preferably, the trumpet-shaped expansion and the cone-shaped configuration can further improve the uniformity of the sprayed material.

[0022] The conveying channel changes from thick to thin. The thick one is to avoid the accumulation of falling materials, and the thin one is to increase the speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the impeller provided at multiple angles;

[0024] Figure 2 A schematic diagram showing the structure of the helix angle;

[0025] Figure 3 A longitudinal cross-sectional structural schematic diagram of a handheld spraying device for micro insects and mites provided;

[0026] Figure 4 It is a schematic diagram of the structure of a handheld spraying device for micro insects and mites;

[0027] Figure 5 for Figure 3 A schematic diagram of the structure of the trumpet-shaped expansion;

[0028] Figure 1-5 The accompanying drawings are denoted as follows:

[0029] 1 impeller, 2 rotating body, 3 blades, 4 top side, 5 arc-shaped end face, 6 conveying channel, 7 conveying body, 8 discharge port, 9 feeding channel, 10 hand-held part, 11 trumpet-shaped expansion, 12 cone, 13 tip, 14 bottom, 15 discharge gap, 16 driving motor, 17 blower, 18 feeding funnel, 19 large diameter channel, 20 small diameter channel. DETAILED DESCRIPTION

[0030] like Figure 1-5 As shown, the utility model provides an impeller 1, which includes a rotating body 2 with a length and a plurality of blades 3 arranged on the outer peripheral side of the rotating body 2, the plurality of blades 3 are arranged at uniform intervals along the circumferential direction of the peripheral side, and the extension direction of each blade 3 is along the length direction of the rotating body 2, the plurality of blades 3 are all spiral and the spiral angle is between 5° and 45°.

[0031] In a specific embodiment, each blade 3 includes a top side 4 away from the rotating body 2, and the front and rear ends of the top side 4 along the length direction are symmetrically arranged arc end surfaces 5, and the outward convex direction of each arc end surface 5 is away from the rotating body 2.

[0032] The front and rear ends of the blades 3 are symmetrically arranged arc-shaped end surfaces 5, which can reduce damage to the predatory mites and reduce the risk of being blocked by the matrix.

[0033] In a specific implementation manner, the rotating body 2 is a hollow cylinder.

[0034] In a specific implementation manner, the impeller 1 is an impeller made of a flexible material, and the flexible material is TPU or silica gel.

[0035] The utility model also provides a handheld spraying device for micro insects and mites, comprising the impeller 1 described above, and also comprising a conveying body 7 with a conveying channel 6 inside, one end of the conveying body 7 is provided with an outlet 8 connected to the conveying channel 6, on the contrary, the other end of the outlet 8 is provided with a wind source, the outlet of the wind source is connected to the conveying channel 6, a feed channel 9 located above the conveying channel 6 is provided on the conveying body 7 at a position downstream of the outlet, the feed channel 9 is arranged in a vertical direction and is connected to the conveying channel 6, the impeller 1 is rotatably mounted on the feed channel 9 and the length direction of the impeller 1 is arranged in a horizontal direction. It can be understood that the length direction of the impeller 1 is the same as the axial direction of the conveying channel 6, and also comprises a driving source for driving the impeller 1 to rotate, and also comprises a handheld portion 10, which is fixedly connected to the conveying body 7 for handholding, such as Figure 3-4As shown, the handle 10 is located at an end of the conveying body 7 opposite to the discharge port 8 thereof.

[0036] The impeller 1 can be set to achieve continuous feeding without interruption, reduce the damage to predatory mites caused by friction and material jamming, improve the release efficiency and uniformity, and cause less damage to predatory mites. After the device sprays predatory mites, the survival rate of predatory mites is 95.78%, and the loss rate is only 4.22%. The device has extremely low loss to predatory mites.

[0037] like Figure 3-5 As shown, the discharge port 8 is connected to a trumpet-shaped expansion port 11, and a cone 12 is installed inside the trumpet-shaped expansion port 11. The axis of the cone 12 coincides with that of the trumpet-shaped expansion port 11. The tip 13 of the cone 12 is located on the inner side of the trumpet-shaped expansion port 11, and the bottom end 14 is located on the outer side of the trumpet-shaped expansion port 11. There is a discharge gap 15 between the inner circumference of the trumpet-shaped expansion port 11 and the outer circumference of the cone 12.

[0038] The arrangement of the trumpet-shaped expansion opening 11 and the cone 12 can further improve the uniformity of the sprayed materials.

[0039] Among them, the driving source is a driving motor 16, which is installed in the conveying body 7 at a position adjacent to the feeding channel 9. The output shaft of the driving motor 16 is arranged in the horizontal direction and is fixedly connected to the rotating body 2. The fixed connection method is, for example, to achieve the connection between the output shaft and the hollow cylinder by means of a keyway.

[0040] In a specific implementation manner, the wind source is a blower 17 .

[0041] In a specific embodiment, it also includes an electronic speed regulator, which is electrically connected to the drive motor 16, and the electronic speed regulator is electrically connected to a plurality of spray speed adjustment buttons, which are arranged on the handheld part 10. The electronic speed regulator is also electrically connected to the blower 17, and a plurality of wind speed adjustment buttons are also arranged on the handheld part 10, and these wind speed adjustment buttons are electrically connected to the electronic speed regulator (these components are conventional components and are not shown in the drawings).

[0042] In a specific embodiment, it further comprises a feed funnel 18 which is installed at the inlet end of the feed channel 9 .

[0043] like Figure 4 As shown, in a specific embodiment, the conveying channel 6 includes a large diameter channel 19 and a small diameter channel 20 arranged and connected in the upstream and downstream directions, and the feed channel 9 is located above the large diameter channel 19 .

[0044] The conveying channel changes from thick to thin. The thick one is to avoid the accumulation of falling materials, and the thin one is to increase the speed.

[0045] Perform a uniformity test on a yellow plate:

[0046] An open and windless plot was selected as the experimental site, and 40 yellow boards (length * width: 30cm * 20cm) were pasted on one side of the plot, so that the pasted yellow boards formed an experimental sample plot of 2 meters long and 1.2 meters wide, which was used as an experimental group to test the uniformity of spraying predatory mites by the device of the present invention; 40 yellow boards (length * width: 30cm * 20cm) were pasted on the other side of the plot, so that the pasted yellow boards formed an experimental sample plot of 2 meters long and 1.2 meters wide, which was used as a control group to test the uniformity of spreading predatory mites in the traditional way. Subsequently, a bag of 2L containing 150,000 predatory mites (using wheat bran and vermiculite as a matrix) was poured into the spraying device of the present invention, and another bag of 2L containing 150,000 predatory mites (using wheat bran and vermiculite as a matrix) was sprayed / spread by the same experimenter in the same time along the wide side of the experimental sample plot at a uniform speed in the traditional way. After spraying / spreading, another experimenter took photos to record the distribution of predatory mites on the yellow board. The above experiment was repeated 3 times.

[0047] The predatory mites sprayed by the device are distributed more evenly on the yellow board, basically distributed in every area of ​​the yellow board; the predatory mites applied by the traditional method are distributed unevenly on the yellow board compared with those sprayed by the device, and there are some parts of the yellow board without predatory mites; in summary, the predatory mites sprayed by the device are more evenly distributed.

[0048] Uniformity testing on tobacco:

[0049] Tobacco plants that are in the vigorous growth period were selected for the experiment. Two tobacco fields with a length of 10 meters and a width of 0.5 meters and the same growth of tobacco plants were selected as experimental fields. One was used as an experimental group to test the uniformity of the spraying of predatory mites by the device, and the other was used as a control group to test the uniformity of the traditional method of spreading predatory mites. Subsequently, a bag with a volume of 2L and containing 150,000 predatory mites (using wheat bran and vermiculite as a matrix) was poured into the spraying device of the present invention, and another bag with a volume of 2L and containing 150,000 predatory mites (using wheat bran and vermiculite as a matrix) was sprayed / spread by the same experimenter in a traditional way at a uniform speed along the long side of the experimental field at the same time, and another experimenter immediately took pictures to record the distribution of predatory mites on the tobacco. The above experiment was repeated 3 times.

[0050] The predatory mites sprayed by the device are more uniform, and the predatory mites can cover every leaf; the predatory mites sprayed by the traditional method are unevenly distributed, basically concentrated on 2-3 leaves; in summary, it can be concluded that the predatory mites sprayed by the device are more uniform.

[0051] Test on the loss rate of predatory mites by spraying the device:

[0052] An open and windless plot was selected as the experimental site, and 40 yellow boards (length * width: 30cm * 20cm) were pasted on the ground so that the pasted yellow boards formed an experimental plot with a length of 2 meters and a width of 1.2 meters. Then, a bag of 2L containing 150,000 predatory mites (wheat bran and vermiculite were used as the matrix) was poured into the spraying device of the present invention, and the same experimenter moved forward at a uniform speed along the wide side of the experimental plot to spray the predatory mites. After the spraying was completed, each experimental plot used the "five-point sampling method" to collect 5 yellow boards to count the number of surviving predatory mites, and the number of live predatory mites before spraying and the number of live predatory mites after spraying were calculated, so as to obtain the effect of the spraying device of the present invention on the survival rate and loss rate of predatory mites. The above experiment was repeated 3 times.

[0053] Calculation formula:

[0054] The number of live mites of predatory mites after spraying = the number of live mites on 5 yellow plates / 5*40

[0055] Survival rate of predatory mites after spraying = number of live predatory mites after spraying / number of live predatory mites before spraying * 100%

[0056] Predatory mite loss rate after spraying = (number of live predatory mites before spraying - number of live predatory mites after spraying) / number of live predatory mites before spraying * 100%

[0057] Table 1 Loss rate of predatory mites after spraying the device

[0058] deal with Quantity (10,000 heads) Survival rate (%) Loss rate (%) Before spraying 15±0.00 100±0.00 0±0.00 After spraying 14.37±0.12 95.78±0.80 4.22±0.80

[0059] It can be seen from Table 1 that after spraying the predatory mites with the spraying device of the present invention, the survival rate of the predatory mites is 95.78%, and the loss rate is only 4.22%, indicating that the loss of the predatory mites using the spraying device of the present invention is extremely low.

[0060] Application examples of the device:

[0061] Case 1: Use on roses

[0062] After the preliminary tests on the spraying uniformity and loss rate of predatory mites, the device has been applied to the control of spider mites on roses. The experimenters adjusted the speed of movement during spraying according to the planting density of roses, so that the predatory mites can be evenly distributed on each rose plant.

[0063] Case 2: Use on strawberries

[0064] The spraying device has been used to control spider mites on strawberries. Experimenters use the device to spray predatory mites to control spider mites on strawberries. For low crops such as strawberries, the device will not cause damage to the plants when operating at close range.

[0065] Case 3: Use on blueberries

[0066] Spraying devices have been used to control thrips on blueberries.

Claims

1. An impeller, characterized in that: It includes a rotating body with a length and a plurality of blades arranged on the outer peripheral side of the rotating body. The rotating body is a hollow cylinder. The plurality of blades are evenly spaced along the circumferential direction of the peripheral side, and the extension direction of each blade is along the length direction of the rotating body. The plurality of blades are all spiral and the spiral angle is between 5° and 45°.

2. The impeller according to claim 1, characterized in that: Each blade includes a top side away from the rotating body, and the front and rear ends of the top side along the length direction are symmetrically arranged arc end faces, and the outward convex direction of each arc end face is a direction away from the rotating body.

3. The impeller according to claim 1, characterized in that: The impeller is made of a flexible material, and the flexible material is TPU or silica gel.

4. A handheld spraying device for micro insects and mites, characterized in that: It includes the impeller described in any one of the preceding claims 1-3, and also includes a conveying body with a conveying channel inside, one end of the conveying body is provided with an outlet connected to the conveying channel, and the other end of the outlet is provided with a wind source, the air outlet of the wind source is connected to the conveying channel, a feed channel located above the conveying channel is provided on the conveying body at a position downstream of the air outlet, the feed channel is arranged in a vertical direction and is connected to the conveying channel, the impeller is rotatably installed on the feed channel and the length direction of the impeller is arranged in a horizontal direction, and also includes a driving source for driving the impeller to rotate, and also includes a hand-held part, which is fixedly connected to the conveying body for hand-holding.

5. The handheld spraying device for micro insects and mites according to claim 4, characterized in that: The discharge port is connected to a trumpet-shaped expansion port, a cone is installed inside the trumpet-shaped expansion port, the axis of the cone and the trumpet-shaped expansion port coincide with each other, the tip of the cone is located on the inner side of the trumpet-shaped expansion port, and the bottom end is located on the outer side of the trumpet-shaped expansion port, and there is a discharge gap between the inner circumference of the trumpet-shaped expansion port and the outer circumference of the cone.

6. The handheld spraying device for micro insects and mites according to claim 4, characterized in that: The driving source is a driving motor, which is installed in the conveying body at a position adjacent to the feeding channel. The output shaft of the driving motor is arranged in the horizontal direction and is fixedly connected to the rotating body.

7. The handheld spraying device for micro insects and mites according to claim 6, characterized in that: The wind source is a blower.

8. The handheld spraying device for micro insects and mites according to claim 7, characterized in that: It also includes an electronic speed regulator, which is electrically connected to the drive motor. The electronic speed regulator is electrically connected to a number of spray speed adjustment buttons, which are arranged on the handheld part. The electronic speed regulator is also electrically connected to the blower. A number of wind speed adjustment buttons are also arranged on the handheld part, and the wind speed adjustment buttons are electrically connected to the electronic speed regulator.

9. The handheld spraying device for micro insects and mites according to claim 4, characterized in that: Also included is a feed funnel, which is installed at the inlet end of the feed channel.

10. The handheld spraying device for micro insects and mites according to claim 4, characterized in that: The conveying channel comprises a large-diameter channel and a small-diameter channel which are arranged and communicated along an upstream and downstream direction, and the feed channel is located above the large-diameter channel.

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