A false pressing prevention device for a switch button of a sprayer

Abstract

A kind of anti-pressing device of sprayer switch button, including liquid bottle and bottle cap, the upper mouth of the liquid bottle is provided with bottle cap, the lower side of the bottle cap is provided with air pump and suction tube, the lower head of the air pump and suction tube is inserted into the liquid bottle, the side of bottle cap is provided with spray gun, the upper head of suction tube is communicated with spray gun, the head of spray gun is provided with spray head, the side of bottle cap away from spray gun is provided with handle, the switch button is provided in the handle, the switch button is provided with sliding plate, sliding plate is slidably connected with switch button by sliding structure, the reset structure of sliding plate is arranged between the lower part of sliding plate and switch button, the front and rear sides of sliding plate are provided with downward side panels, recess is provided on the handle, the inner wall of the front and rear sides of recess is respectively provided with limiting support plate, the side panel of sliding plate is matched with limiting support plate.

Description

Technical Field

[0001] This utility model relates to sprayers, and in particular to a device for preventing accidental pressure on a sprayer switch button. Background Technology

[0002] In agricultural production, pesticides are sprayed to control crop diseases and pests. The most commonly used machinery for spraying pesticides is the manual sprayer, which mainly consists of a tank, pump, spray gun, and pesticide dispensing switch. When using the sprayer, people need to manually press the switch button to open the valve in the spray gun, allowing the pesticide to be sprayed. However, traditional switches pose a safety hazard; if a hand or other external force is accidentally applied to the switch button, the switch may be accidentally opened. Therefore, the applicant previously applied for Chinese invention patent 201610705058.5, entitled "Safety Self-Locking Device for Handheld Compressor Sprayer Switch". This patent mainly involves setting a self-locking spring on the handle, with the lower part of the self-locking spring connected to the handle and the upper part of the self-locking spring having a hook. A through hole is made on the switch plate, and the self-locking spring passes through the through hole and is locked in place by the hook to prevent accidental opening. However, its disadvantage is that, in order to make the self-locking spring have a certain degree of elasticity, its wall thickness is relatively thin. When people accidentally press the switch plate, if the force is slightly greater, the supporting force of the self-locking spring is insufficient to support the switch plate, which will cause the self-locking spring to deform, and the liquid will still be sprayed out. Therefore, this structure still has certain safety hazards. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a sprayer switch button anti-accidental pressure device that supports and limits the switch button when not in use to prevent accidental pressure. This device is simple in structure and easy to operate.

[0004] The technical solution of the anti-accidental pressure device for a sprayer switch button of this utility model is as follows: It includes a liquid bottle and a bottle cap. The bottle cap is provided at the upper opening of the liquid bottle. An air pump and a suction tube are provided under the bottle cap. The lower ends of the air pump and the suction tube are inserted into the liquid bottle. A spray gun is provided on one side of the bottle cap. The upper end of the suction tube communicates with the spray gun. A nozzle is provided at the head of the spray gun. A handle is provided on the side of the bottle cap away from the spray gun. A switch button is provided in the handle. A sliding plate is provided on the switch button. The sliding plate slides with the switch button via a sliding structure. A reset structure for the sliding plate is provided between the lower part of the sliding plate and the switch button. Downward-facing side panels are provided on the front and rear sides of the sliding plate. A groove is provided on the handle. Limiting support plates are provided on the inner walls of the front and rear sides of the groove. The side panels of the sliding plate cooperate with the limiting support plates.

[0005] Furthermore, the sliding structure includes a side barb on the underside of the side panel and side baffles on the front and rear sides of the switch button, with the side barb slidingly engaging with the lower part of the side baffles.

[0006] Furthermore, the reset structure includes a through hole in the switch button, a first protrusion on the lower part of the slide plate, a first protrusion on the first protrusion, the first protrusion and the first protrusion passing through the through hole, a second protrusion on the lower part of the switch button, a second protrusion on the second protrusion, the first protrusion and the second protrusion corresponding to each other, and a reset spring between the first protrusion and the second protrusion.

[0007] Furthermore, a protruding push plate is provided on the upper part of the skateboard.

[0008] The beneficial effect of the anti-accidental pressing device for the sprayer switch button of this utility model is that when not in use, the reset structure pushes the switch button so that the side panels on both sides always keep in cooperation with the limiting support plate. The limiting support plate supports and limits the switch button, making it impossible for people to press the switch button down, thereby preventing accidental pressing. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of an anti-accidental pressure device for a sprayer switch button according to the present invention; Figure 2 This is a schematic diagram of the structure of an anti-accidental pressure device for a sprayer switch button according to the present invention; Figure 3 yes Figure 2 A magnified view of part A; Figure 4 The diagram shows a partially enlarged view of a limiting support plate and a first protrusion located on the right side, and a second protrusion located on the left side. Figure 5 It is a 3D diagram showing the disassembled state of the bottle cap, switch button, slide plate, and reset spring.

[0010] In the diagram, 1. Liquid bottle; 2. Bottle cap; 3. Air pump; 4. Suction tube; 5. Spray gun; 6. Nozzle; 7. Handle; 8. Switch button; 9. Slide plate; 10. Side panel; 11. Groove; 12. Limiting support plate; 13. Side barb; 14. Side baffle; 15. Perforation; 16. First protrusion; 17. First protrusion; 18. Second protrusion; 19. Second protrusion; 20. Return spring; 21. Push plate. Detailed Implementation

[0011] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0012] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0013] This utility model relates to a device for preventing accidental pressure on a sprayer switch button, such as... Figure 1 — Figure 5 As shown, the device includes a liquid bottle 1 and a bottle cap 2. The bottle cap 2 is attached to the upper opening of the liquid bottle 1 and can be threaded into the upper opening of the liquid bottle 1. An air pump 3 and a suction tube 4 are located below the bottle cap 2. A piston rod is installed in the air pump 3, with its upper end passing through the bottle cap 2 for easy gripping and pumping. The lower ends of the air pump 3 and the suction tube 4 are inserted into the liquid bottle 1. A spray gun 5 is located on one side of the bottle cap 2, with a through hole and a valve inside. The upper end of the suction tube 4 communicates with the through hole of the spray gun 5. A nozzle 6 is installed at the head of the spray gun 5. A handle 7 is located on the side of the bottle cap 2 away from the spray gun 5. A switch button 8 is provided in the handle 7. One end of the switch 8 is connected to the valve in the spray gun. Pressing the switch 8 can control the valve to open or close. A slide plate 9 is provided on the switch button 8. The slide plate 9 slides left and right along the switch button 8 via a sliding structure. A reset structure for the slide plate 9 is provided between the lower part of the slide plate 9 and the switch button 8. Downward side panels 10 are provided on the front and rear sides of the slide plate 9. A groove 11 is provided on the handle 7. Limiting support plates 12 are respectively provided on the inner walls of the front and rear sides of the groove 11. The reset structure pushes the slide plate 9 so that the side panels 10 of the slide plate 9 can keep in contact with the limiting support plates 12.

[0014] Furthermore, the sliding structure includes a side hook 13 provided under the side panel 10, and side baffles 14 provided on the front and rear sides of the switch button 8. The side hook 13 slides in cooperation with the lower part of the side baffles 14. By hooking the lower part of the side baffles 14 on the front and rear sides of the switch button 8 with the side hook 13, the slide plate 9 cannot be disengaged from the switch button 8, thus limiting the slide plate 9. At the same time, the slide plate 9 can slide left and right along the side baffles 14 through the side hook 13.

[0015] Furthermore, the reset structure includes a through hole 15 in the switch button 8, a first protrusion 16 at the lower part of the slide plate 9, a first protrusion 17 on the first protrusion 16, the first protrusion 16 and the first protrusion 17 passing through the through hole 15, a second protrusion 18 at the lower part of the switch button 8, a second protrusion 19 on the second protrusion 18, the first protrusion 17 corresponding to the second protrusion 19, and a reset spring 20 between the first protrusion 17 and the second protrusion 19. The limiting support plate 12 can be positioned on the left side of the groove 11 of the handle 7, with the corresponding first protrusion 16 at the lower part of the slide plate 9 also located on the left, and the second protrusion 18 at the lower part of the switch button 8 located on the right (as shown in the attached diagram). Figure 3 As shown), when not in use, when the user releases the slide plate 9, the first protrusion 16 is pushed to the left by the return spring 20. The first protrusion 16 drives the slide plate 9 to move to the left and maintain cooperation with the limiting support plate 12. Alternatively, the limiting support plate 12 can be located on the right side of the groove 11 of the handle 7, and the corresponding first protrusion 16 at the bottom of the slide plate 9 is also located on the right side, while the second protrusion 18 at the bottom of the switch button 8 is located on the left side (as shown in the attached diagram). Figure 4 As shown), when not in use, people release the slide plate 9 with their fingers. Under the action of the return spring 20, the first protrusion 16 is pushed to the right. The first protrusion 16 drives the slide plate 9 to move to the right and maintains cooperation with the limit support plate 12 to achieve the function of preventing accidental pressure. With the first protrusion 17 and the second protrusion 19, the two ends of the return spring 20 are fitted on the first protrusion 17 and the second protrusion 19, which can play a positioning role for the return spring 20.

[0016] Furthermore, a protruding push plate 21 is provided on the upper part of the skateboard 9. With the push plate 21, it is convenient for people to push the protruding push plate 21 with their fingers, and the push plate 21 causes the skateboard 9 to slide.

[0017] This utility model discloses an anti-accidental pressure device for a sprayer switch button. In use, one hand holds the handle 7, while the other hand operates the piston rod of the air pump 3, pumping air into the liquid bottle 1 to inflate it. At this time, the user can push the sliding plate 9 with their fingers. The sliding plate 9 moves the side panels 10 on both sides. The side panels 10 slide along the side baffles 14 on both sides of the switch button 8 via the side hooks 13, causing the lower part of the side panels 10 to disengage from the limiting support plate 12. Since the limiting support plate 12 can no longer limit or support the side panels 10, the user can then press down on the switch button 8. The spray gun 5 and nozzle 6 are turned on, allowing the liquid in the bottle 1 to be sprayed out through the suction tube 4, spray gun 5, and nozzle 6. When not in use, the user releases the switch button 8, which returns to its original position. The spray gun 5 and nozzle 6 are turned off. At the same time, the reset spring 20 of the reset structure pushes the first protrusion 16, which in turn drives the slide plate 9 to reset. The slide plate 9 then slides back to the corresponding position above the limit support plate 12, and the side panel 10 of the slide plate 9 contacts the limit support plate 12. At this time, even if the user presses the switch button 8, it cannot be pressed down due to the support and limitation of the limit support plate 12, thus preventing accidental pressure.

[0018] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0019] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for preventing accidental pressure on a sprayer switch button, comprising a liquid bottle (1) and a cap (2), wherein the cap (2) is provided at the upper opening of the liquid bottle (1), and an air pump (3) and a suction tube (4) are provided below the cap (2), the lower ends of the air pump (3) and the suction tube (4) are inserted into the liquid bottle (1), a spray gun (5) is provided on one side of the cap (2), the upper end of the suction tube (4) is connected to the spray gun (5), a nozzle (6) is provided at the head of the spray gun (5), and a handle (7) is provided on the side of the cap (2) away from the spray gun (5), wherein a switch button (8) is provided in the handle (7), characterized in that: The switch button (8) is provided with a slide plate (9), which slides with the switch button (8) through a sliding structure. A reset structure for the slide plate (9) is provided between the lower part of the slide plate (9) and the switch button (8). Downward side panels (10) are provided on the front and rear sides of the slide plate (9). A groove (11) is provided on the handle (7). Limiting support plates (12) are provided on the inner walls of the front and rear sides of the groove (11). The side panels (10) of the slide plate (9) cooperate with the limiting support plates (12).

2. The anti-accidental pressure device for a sprayer switch button as described in claim 1, characterized in that: The sliding structure includes a side barb (13) provided under the side panel (10), and side baffles (14) provided on the front and rear sides of the switch button (8). The side barb (13) slides with the lower part of the side baffle (14).

3. The anti-accidental pressure device for a sprayer switch button as described in claim 1, characterized in that: The reset structure includes a through hole (15) in the switch button (8), a first protrusion (16) at the lower part of the slide plate (9), a first protrusion (17) on the first protrusion (16), the first protrusion (16) and the first protrusion (17) passing through the through hole (15), a second protrusion (18) at the lower part of the switch button (8), a second protrusion (19) on the second protrusion (18), the first protrusion (17) corresponding to the second protrusion (19), and a reset spring (20) between the first protrusion (17) and the second protrusion (19).

4. The anti-accidental pressure device for a sprayer switch button as described in claim 1, characterized in that: The upper part of the skateboard (9) is provided with a protruding push plate (21).

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