Anti-suck-back manual powder spraying pot structure

Abstract

The utility model provides an anti-suck-back manual powder spraying pot structure which comprises a pressure shell, a pot cover is connected to one end of the pressure shell, an air pressure pipe is arranged on one side of the pot cover and one side of the bottom, a connecting socket is arranged at one end of the air pressure pipe, a one-way valve seat is installed in a valve cavity, a plug is arranged at one end of the pressure shell, and the plug is fixed in the connecting socket. A vertical pipe communicated with the air pressure pipe is arranged in the center of the interior of the kettle cover; the one-way valve seat is arranged at the joint of the pressure shell and the pneumatic tube at the bottom of the kettle cover, so that the front end of the one-way valve seat adopts a duckbilled head structure, powder in the kettle body cannot enter the pressure shell through the pneumatic tube, and the powder in the kettle body is effectively prevented from being sucked back; the plug is directly inserted into the connecting socket, and meanwhile, the one-way valve seat is pressed, so that the one-way valve seat is simple and efficient to mount and convenient to maintain.

Description

Technical Field

[0001] This utility model belongs to the field of spray bottle technology and relates to the structure of a manual powder spray bottle that prevents backflow. Background Technology

[0002] Farmland can grow many crops, mainly including grain crops, various vegetables, medicinal herbs, trees, etc. When planting trees in farmland, a farmland duster is needed. For example, fruit trees and landscaping trees are easily infested by pests. The powdered pesticide is sprayed directly on the surface of the trees to kill surface pests and suppress them.

[0003] The existing manual powder sprayer design lacks a flow-prevention structure between the manual air pressure nozzle and the bottom of the sprayer. When manually pressurizing the inside of the sprayer, powder can easily enter the piston tube through the pipe. Additionally, the integrated design of the bottom connection makes cleaning difficult when the inside is clogged, requiring improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a manual powder sprayer structure that prevents backflow, so as to solve the problems mentioned in the background art.

[0005] The purpose of this utility model can be achieved through the following technical solution: a manual powder sprayer structure with anti-backflow, including a pressure shell, a lid, a body, and a nozzle tube. One end of the pressure shell is connected to the lid, the body is threaded onto the top of the lid, a pressure pipe is provided on the lid and one side of the bottom, a connecting socket is provided at one end of the pressure pipe, a valve chamber is provided on one side of the connecting socket, and a one-way valve seat is installed inside the valve chamber. One end of the pressure shell is provided with a plug, which is fixed inside the connecting socket. A vertical pipe communicating with the pressure pipe is provided at the center of the inside of the lid.

[0006] In the above-mentioned anti-backflow manual powder sprayer structure, a powder outlet pipe is provided on one side of the bottom of the lid, and a spray nozzle pipe is threaded onto one end of the powder outlet pipe.

[0007] In the above-mentioned anti-backflow manual powder sprayer structure, the inside of the lid is provided with a powder spraying outlet, which is connected to one end of the powder outlet pipe.

[0008] In the above-mentioned anti-backflow manual powder sprayer structure, two outer rubber rings are provided on the outer side of the one-way valve seat, and a duckbill head is provided at one end of the one-way valve seat.

[0009] In the above-mentioned anti-backflow manual powder sprayer structure, a piston rod is provided inside the pressure housing, a piston component is provided at one end of the piston rod, and a one-way air valve is installed at the end where the piston rod and the piston component are connected.

[0010] In the above-mentioned anti-backflow manual powder sprayer structure, an end cap is installed at one end of the pressure housing, a handle is provided on one side of the end cap, a support sleeve is provided on the inner side of the handle, and one end of the piston rod is fixed inside the support sleeve.

[0011] Compared with the prior art, the advantages of the anti-backflow manual powder sprayer structure of this utility model are:

[0012] 1. This application provides a one-way valve seat at the connection between the pressure shell and the air pressure pipe at the bottom of the lid. In this way, the front end of the one-way valve seat adopts a duckbill head structure, so that the powder inside the pot will not enter the pressure shell through the air pressure pipe, thereby effectively preventing the powder inside the pot from being sucked back. When connecting the pressure shell, the plug is directly inserted into the connection socket, and the one-way valve seat is pressed tightly. With this structure, the one-way valve seat is simple and efficient to install and easy to maintain.

[0013] 2. The bottom of the lid of this application is connected to the body of the spray bottle in a detachable manner. At the same time, both ends of the lid are detachable. This allows the lid to be removed separately. When the inside of the lid, the powder spraying outlet, and the powder outlet pipe are blocked, these areas can be cleaned separately. Maintenance is simple and efficient, and it is convenient to replace various parts of the spray bottle, thus reducing the cost of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the anti-backflow manual powder sprayer of this utility model.

[0015] Figure 2 This is a schematic diagram of the piston rod structure of the anti-backflow manual powder sprayer of this utility model.

[0016] Figure 3 This is a schematic diagram of the piston component structure of the anti-backflow manual powder sprayer of this utility model.

[0017] Figure 4 This is a schematic diagram of the plug structure of the anti-backflow manual powder sprayer of this utility model.

[0018] Figure 5 This is a schematic diagram of the lid structure of the manual powder sprayer with anti-backflow mechanism of this utility model.

[0019] Figure 6 This is a schematic diagram of the one-way valve seat structure of the anti-backflow manual powder sprayer of this utility model.

[0020] Figure 7 This is a schematic diagram of the nozzle tube structure of the anti-backflow manual powder sprayer of this utility model.

[0021] Figure 8 This is a schematic diagram of the body structure of the manual powder sprayer with anti-backflow design of this utility model.

[0022] In the diagram, 1. Pressure housing; 2. Lid; 3. Kettle body; 4. Nozzle pipe; 5. End cap; 6. Handle; 7. Support sleeve; 8. Piston rod; 9. Piston component; 10. One-way air valve; 11. Plug; 12. Vertical pipe; 13. Powder spray outlet; 14. Powder outlet pipe; 15. Connecting socket; 16. One-way valve seat; 17. Air pressure pipe; 18. Outer rubber ring; 19. Duckbill head. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] The anti-backflow manual powder sprayer structure includes a pressure housing 1, a lid 2, a body 3, and a nozzle tube 4. One end of the pressure housing 1 is connected to the lid 2. The body 3 is threaded onto the top of the lid 2. An air pressure tube 17 is provided on the lid 2 and one side of the bottom. One end of the air pressure tube 17 is provided with a connection socket 15. A valve chamber is provided on one side of the connection socket 15, and a one-way valve seat 16 is installed inside the valve chamber. One end of the pressure housing 1 is provided with a plug 11, and the plug 11 is fixed inside the connection socket 15. A vertical tube 12 communicating with the air pressure tube 17 is provided at the center of the inside of the lid 2.

[0025] like Figure 1 , Figure 5 , Figure 7 As shown, the structure of the anti-backflow manual powder sprayer of this utility model is as follows: Specifically, a powder outlet pipe 14 is provided on one side of the bottom of the lid 2, and a nozzle pipe 4 is threadedly installed at one end of the powder outlet pipe 14. The front end of the nozzle pipe 4 is inclined downwards, which makes it convenient to spray the powder onto the plants. At the same time, it is connected to one end of the powder outlet pipe 14 by a threaded connection, which makes it convenient to disassemble and replace.

[0026] like Figure 1 , Figure 2 and Figure 5 As shown, the structure of the anti-backflow manual powder sprayer of this utility model is as follows: Specifically, the inside of the lid 2 is provided with a powder spraying outlet 13, which is connected to one end of the powder outlet tube 14. When pressure is applied inside the body 3, the powder inside can be guided into the powder outlet tube 14 through the powder spraying outlet 13, thereby completing the powder dispensing.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 6As shown, the structure of the anti-backflow manual powder sprayer of this utility model is as follows: Specifically, two outer rubber rings 18 are provided on the outer side of the one-way valve seat 16, and a duckbill head 19 is provided at one end of the one-way valve seat 16. The outer rubber rings 18 can make the one-way valve seat 16 more stable during installation, and the side sealing is also high. In addition, the duckbill head 19 structure at the front end reduces the communication channel of the air pressure pipe 17 towards the inside of the connecting socket 15, which can prevent backflow.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 As shown, the anti-backflow manual powder sprayer structure of this utility model specifically includes a piston rod 8 inside the pressure housing 1, a piston element 9 at one end of the piston rod 8, and a one-way valve 10 installed at the end where the piston rod 8 and piston element 9 are connected. Both the piston rod 8 and piston element 9 in this application are made of plastic. The piston rod 8 is a hollow structure, and the front end of the piston element 9 has an air intake port that communicates with the interior of the piston rod 8, which facilitates air intake from the pressure housing 1. The one-way valve 10 is a commercially available device known to those skilled in the art. Here, we are only using it without making any structural or functional improvements, so we will not elaborate further. The one-way valve 10 allows the piston rod 8 to draw in air from the rear end, but prevents air from being exhausted through the piston rod 8.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the structure of the anti-backflow manual powder sprayer of this utility model is as follows: one end of the pressure housing 1 is equipped with an end cap 5, a handle 6 is provided on one side of the end cap 5, a support sleeve 7 is provided on the inner side of the handle 6, and one end of the piston rod 8 is fixed inside the support sleeve 7. Pulling the handle 6 can drive the piston rod 8 to move. When installing, the piston rod 8 can be directly glued to the inside of the support sleeve 7.

[0030] This utility model relates to a manual powder sprayer structure with anti-backflow. In use, the various parts are assembled. During installation, the powder outlet pipe 14 at the bottom of the lid 2 is connected to the nozzle pipe 4. Then, the one-way valve seat 16 is installed inside the connecting socket 15. Next, the plug 11 at one end of the pressure housing 1 is inserted into the connecting socket 15, connecting the pressure housing 1 and the lid 2. The front end of the plug 11 presses against the one-way valve seat 16 inside the connecting socket 15. Then, the powder is placed inside the pot body 3, and the lid 2 is threaded onto the top of the pot body 3, completing the installation process. In use, the handle 6 is pulled backwards, causing the piston rod 8 and piston element 9 to extend. One end of the piston 9 is hollow and draws air from the outside. Then, the piston rod 8 is pushed again. The piston 9 moves inside the pressure housing 1, causing the gas to be pushed into the pot body 3 through the air pressure pipe 17. This increases the air pressure inside the pot body 3, thereby forcing the powder inside the pot body 3 out of the powder spraying outlet 13 and then spraying it out through the nozzle pipe 4 to sterilize and kill insects on the plants. In addition, this application provides a one-way valve seat 16 at the connection between the pressure housing 1 and the air pressure pipe 17 at the bottom of the pot lid 2. In this way, the front end of the one-way valve seat 16 adopts a duckbill head 19 structure, so that the powder inside the pot body 3 will not enter the interior of the pressure housing 1 through the air pressure pipe 17, thereby effectively preventing the backflow of powder inside the pot body 3.

[0031] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A manual powder sprayer structure with anti-backflow feature, comprising a pressure housing (1), a lid (2), a body (3), and a nozzle tube (4), characterized in that, One end of the pressure housing (1) is connected to a kettle lid (2), and a kettle body (3) is threaded onto the top of the kettle lid (2). A pressure pipe (17) is provided on the kettle lid (2) and one side of the bottom. A connection socket (15) is provided at one end of the pressure pipe (17). A valve chamber is provided on one side of the connection socket (15), and a one-way valve seat (16) is installed inside the valve chamber. A plug (11) is provided at one end of the pressure housing (1), and the plug (11) is fixed inside the connection socket (15). A vertical pipe (12) communicating with the pressure pipe (17) is provided at the center of the inside of the kettle lid (2).

2. The anti-backflow manual powder sprayer structure according to claim 1, characterized in that, A powder outlet pipe (14) is provided on one side of the bottom of the lid (2), and a nozzle pipe (4) is threaded onto one end of the powder outlet pipe (14).

3. The anti-backflow manual powder sprayer structure according to claim 1, characterized in that, The inside of the lid (2) is provided with a powder spraying outlet (13), which is connected to one end of the powder outlet pipe (14).

4. The anti-backflow manual powder sprayer structure according to claim 1, characterized in that, Two outer rubber rings (18) are provided on the outer side of the one-way valve seat (16), and a duckbill head (19) is provided at one end of the one-way valve seat (16).

5. The anti-backflow manual powder sprayer structure according to claim 1, characterized in that, The pressure housing (1) is provided with a piston rod (8) inside, and a piston component (9) is provided at one end of the piston rod (8). A one-way air valve (10) is installed at the end where the piston rod (8) and the piston component (9) are connected.

6. The anti-backflow manual powder sprayer structure according to claim 5, characterized in that, One end of the pressure housing (1) is fitted with an end cap (5), and a handle (6) is provided on one side of the end cap (5). A support sleeve (7) is provided on the inner side of the handle (6), and one end of the piston rod (8) is fixed inside the support sleeve (7).

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