Three-purpose gun head

By introducing a linkage rod and threaded fastening sleeve into the three-in-one spray gun head, the problem of complex operation of the spray function in the prior art is solved, achieving a fast and stable spray effect. A filter structure is added to the spray pipe to ensure the purity of the liquid.

CN224155807UActive Publication Date: 2026-04-24FOSHAN SAFETY MEDICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN SAFETY MEDICAL EQUIP CO LTD
Filing Date
2025-04-28
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing three-way spray guns require pressing the liquid spray and air spray switches simultaneously to achieve the spraying function, which is demanding in terms of operation and affects the spraying effect and efficiency.

Method used

A three-in-one nozzle was designed, which uses a linkage rod and a threaded fastening sleeve to link the press-to-spray and air-jet switches. It is equipped with anti-slip texture to improve operational stability, and a filter structure is added to the spray tube to ensure the purity of the liquid.

Benefits of technology

It enables quick and convenient spraying operation, improves the stability and comfort of user operation, and ensures the purity of the liquid and the durability of the nozzle.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224155807U_ABST
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Abstract

The utility model provides a three-purpose gun head which comprises a spray gun head body connected with a spray gun body, a pressing liquid spraying pipe and a pressing air spraying pipe are arranged in the spray gun head body, a pressing liquid spraying switch matched with the pressing liquid spraying pipe is arranged on the spray gun head body, and a pressing air spraying switch matched with the pressing air spraying pipe is further arranged on the spray gun head body. A spray head and a connecting plate are arranged on the spray gun head, a linkage rod is connected to the connecting plate in a threaded mode, a threaded fastening sleeve capable of being connected with the linkage rod in a threaded mode is further arranged on the pressing air injection switch, and a screwing handle is further arranged on the linkage rod. According to the three-purpose gun head, the basic functions of water spraying, air spraying and mist spraying are achieved, a user can rapidly and conveniently achieve the mist spraying function through the adjustable linkage mist spraying structure, and then the use requirements of people are fully met.
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Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and specifically relates to a three-way gun head. Background Technology

[0002] A three-way spray gun is a tool used in dental treatment. Typically, during treatment, it is necessary to use water spray, air spray, and mist spray functions. After treatment, the nozzle of the three-way spray gun needs to be disassembled and cleaned.

[0003] While existing three-way nozzles can perform basic functions such as water spraying, air spraying, and mist spraying, when the mist spraying function is required, both the liquid spraying switch and the air spraying switch need to be pressed simultaneously. Since there is no linkage structure between the liquid spraying switch and the air spraying switch, the synchronous pressing operation of the user is highly demanding, which cannot fully meet people's needs and will also affect the spraying effect and efficiency.

[0004] For example, the utility model patent with announcement number CN216985241U discloses a portable dental three-way gun device. In the technical solution of this patent document, when the liquid spraying function is required, the user presses the liquid spraying switch; when the air spraying function is required, the user presses the air spraying switch; and when the mist spraying function is required, the user needs to press both the liquid spraying switch and the air spraying switch simultaneously. However, because the liquid spraying switch and the air spraying switch do not have a linkage connection structure, the user's pressing operation is highly demanding, and improper operation may affect the spraying effect and efficiency. Therefore, it cannot fully meet people's usage needs. Utility Model Content

[0005] In view of this, this utility model addresses the shortcomings of the existing technology by providing a three-in-one nozzle that not only fulfills the basic functions of water spraying, air spraying, and mist spraying, but also enables users to quickly and conveniently achieve the mist spraying function through an adjustable linkage spray structure, thereby more fully meeting people's usage needs.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a three-way gun head, including a spray gun head connected to a spray gun body, a press-to-spray pipe and a press-to-air pipe in the spray gun head, a press-to-spray switch adapted to the press-to-spray pipe in the spray gun head, a press-to-air switch adapted to the press-to-air pipe in the spray gun head, a nozzle in the spray gun head, a connecting plate in the press-to-spray switch, a linkage rod screwed onto the connecting plate, a threaded fastening sleeve that can be screwed onto the linkage rod in the press-to-air switch, and a handle in the linkage rod.

[0007] As a further improvement of this utility model, the press-to-spray switch is also provided with a first press-to-slip texture.

[0008] As a further improvement of this utility model, a second anti-slip texture is also provided on the press-to-jet switch.

[0009] As a further improvement of this utility model, the press-type spray pipe is also provided with a liquid guide pipe extending to the lower end of the spray gun body, and a filter cylinder is detachably installed at the lower end of the liquid guide pipe. The filter cylinder at the lower end of the liquid guide pipe can effectively filter impurities in the liquid and ensure the purity of the sprayed liquid; the filter cylinder is fixed by a threaded method, which is convenient for cleaning or replacement.

[0010] As a further improvement of this utility model, the filter cylinder is provided with a threaded fixing sleeve that is screwed to the liquid guide tube, and the lower end of the liquid guide tube is provided with a threaded fixing tube that is screwed to the threaded fixing sleeve.

[0011] As a further improvement of this utility model, a threaded connecting sleeve is provided on the spray gun head, and a threaded connecting sleeve is screwed onto the threaded connecting sleeve. The nozzle passes through the threaded connecting sleeve and is fixedly connected to the threaded connecting sleeve. The threaded connecting sleeve and threaded connecting sleeve on the spray gun head facilitate the installation and disassembly of the nozzle, while improving the durability and maintenance convenience of the product.

[0012] As a further improvement of this utility model, the threaded connecting sleeve is also provided with a first anti-slip groove for twisting.

[0013] As a further improvement of this utility model, the threaded fixing sleeve is also provided with a second anti-slip groove for twisting.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Firstly, this nozzle not only fulfills the basic functions of spraying water, air, and mist, but also achieves quick and convenient spraying operation through an adjustable linkage spray structure, thus more fully meeting people's usage needs; when it is necessary to spray liquid or air separately, the linkage between the adjustable linkage spray structure and the liquid spray switch and the air spray switch can be released.

[0016] Secondly, the first anti-slip texture on the liquid spray switch and the second anti-slip texture on the jet spray switch improve the stability and comfort of the user during operation.

[0017] Thirdly, the first anti-slip groove on the threaded connection sleeve and the second anti-slip groove on the threaded fixing sleeve make it easier for users to install or disassemble components. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the connecting plate, linkage rod, threaded fastening sleeve, and handle of this utility model.

[0021] Figure 3 This is a schematic diagram of the threaded connecting cylinder and liquid guiding tube of this utility model;

[0022] Figure 4 For the present utility model Figure 3 A magnified schematic diagram of part A in the diagram.

[0023] In the diagram: 100, spray gun body; 101, spray gun head; 102, press-on spray pipe; 103, press-on air pipe; 104, press-on spray switch; 105, press-on air switch; 106, nozzle; 107, connecting plate; 108, linkage rod; 109, threaded fastening sleeve; 110, handle; 111, threaded connecting cylinder; 112, threaded connecting sleeve; 113, fixing block; 201, liquid guide tube; 202, filter cylinder; 203, threaded fixing sleeve; 204, threaded fixing tube. Detailed Implementation

[0024] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0025] like Figure 1 , 2 As shown, a three-in-one spray gun head includes a spray gun head 101 screwed to a spray gun body 100. A press-to-spray pipe 102 and a press-to-air pipe 103 are fixedly connected to the spray gun head 101. A press-to-spray switch 104 adapted to the press-to-spray pipe 102 is provided on the spray gun head 101. A press-to-air switch 105 adapted to the press-to-air pipe 103 is also provided on the spray gun head 101. A nozzle 106 is provided on the spray gun head 101. A connecting plate 107 is also provided on the press-to-spray switch 104. A linkage rod 108 is screwed to the connecting plate 107. A threaded fastening sleeve 109 that can be screwed to the linkage rod 108 is also provided on the press-to-air switch 105 through a fixing block 113. A handle 110 is also provided on the linkage rod 108.

[0026] The press-to-dispense switch 104 is also provided with a first anti-slip texture. This first anti-slip texture allows for convenient and stable pressing of the press-to-dispense switch 104. The press-to-air switch 105 is also provided with a second anti-slip texture. This second anti-slip texture allows for convenient and stable pressing of the press-to-air switch 105.

[0027] Users can select water spray, air spray, or mist spray functions as needed; the liquid is sprayed out by pressing the liquid spray switch 104, and the gas is sprayed out by pressing the air spray switch 105.

[0028] To achieve the spraying function, the user can adjust the linkage rod by turning the handle 110, so that the linkage rod 108 is screwed together with the threaded fastening sleeve 109, thereby linking the press spray switch 104 and the press air switch 105. Then, simply pressing the press spray switch 104 or the press air switch 105 will achieve the linkage and synchronous drive of the press spray switch 104 and the press air switch 105, thus realizing the spraying function.

[0029] To resume liquid or air spraying, simply turn the lever 110 to adjust the linkage rod 108, disengaging it from the threaded fastening sleeve 109, thus releasing the linkage between the liquid spray switch 104 and the air spray switch 105.

[0030] According to another embodiment of the present invention, such as Figure 3 , 4 As shown, the press-type spray pipe 102 is also provided with a liquid guide pipe 201 extending to the lower end of the inside of the spray gun body 100. A filter cylinder 202 is detachably provided at the lower end of the liquid guide pipe 201. The filter cylinder 202 can filter the liquid medicine inside the spray gun body 100 that is about to enter the liquid guide pipe 201, so that impurities cannot pass through the filter holes of the filter cylinder 202 and are isolated outside, thereby ensuring the effect of liquid output and preventing the press-type spray pipe 102 and the nozzle 106 from being blocked by impurities.

[0031] like Figure 3 , 4 As shown, the filter cartridge 202 is provided with a threaded fixing sleeve 203 that is screwed onto the liquid guide tube 201, and the lower end of the liquid guide tube 201 is provided with a threaded fixing tube 204 that is screwed onto the threaded fixing sleeve 203. The screwing connection between the threaded fixing sleeve 203 and the threaded fixing tube 204 allows for flexible connection between the liquid guide tube 201 and the filter cartridge 202; simply separating the threaded fixing sleeve 203 from the threaded fixing tube 204 allows the filter cartridge 202 to be removed from the liquid guide tube 201 for cleaning, and then reinstalled. The threaded fixing sleeve 203 is also provided with a second anti-slip groove. This second anti-slip groove allows for easy adjustment by screwing the threaded fixing sleeve 203.

[0032] According to another embodiment of the present invention, such as Figure 1 , 3As shown, a threaded connecting sleeve 111 is provided on the spray gun head 101, and a threaded connecting sleeve 112 is screwed onto the threaded connecting sleeve 111. The nozzle 106 passes through the threaded connecting sleeve 112 and is fixedly connected to the threaded connecting sleeve 112. After the inner end of the nozzle 106 passes through the threaded connecting sleeve 111 and is inserted into the spray gun head 101, the threaded connecting sleeve 111 and the threaded connecting sleeve 112 are screwed together, so that the nozzle 106 is stably installed in the spray gun head 101. The threaded connecting sleeve 112 is also provided with a first anti-slip groove. The first anti-slip groove allows for easy adjustment by turning the threaded connecting sleeve 112.

[0033] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A utility gun head comprising a gun head (101) connected to a gun body (100), characterized in that: The spray gun head (101) is provided with a press-operated spray pipe (102) and a press-operated jet pipe (103). The spray gun head (101) is provided with a press-operated spray switch (104) adapted to the press-operated spray pipe (102). The spray gun head (101) is also provided with a press-operated jet switch (105) adapted to the press-operated jet pipe (103). The spray gun head (101) is provided with a nozzle (106). The press-operated spray switch (104) is also provided with a connecting plate (107). A linkage rod (108) is screwed onto the connecting plate (107). The press-operated jet switch (105) is also provided with a threaded fastening sleeve (109) that can be screwed onto the linkage rod (108). The linkage rod (108) is also provided with a handle (110).

2. The utility tip of claim 1 wherein: The press-to-spray switch (104) is also provided with a first press-to-slip texture.

3. The utility tip of claim 2 wherein: The press-to-jet switch (105) is also provided with a second press-to-slip texture.

4. The utility tip of claim 3 wherein: The press-type spray pipe (102) is also provided with a liquid guide pipe (201) extending to the lower end of the inside of the spray gun body (100), and a filter cylinder (202) is detachably provided at the lower end of the liquid guide pipe (201).

5. The utility tip of claim 4 wherein: The filter cylinder (202) is provided with a threaded fixing sleeve (203) that is screwed to the liquid guide tube (201), and the lower end of the liquid guide tube (201) is provided with a threaded fixing tube (204) that is screwed to the threaded fixing sleeve (203).

6. The utility tip of claim 5 wherein: The spray gun head (101) is provided with a threaded connecting sleeve (111), and a threaded connecting sleeve (112) is screwed onto the threaded connecting sleeve (111). The nozzle (106) passes through the threaded connecting sleeve (112) and is fixedly connected to the threaded connecting sleeve (112).

7. The utility tip of claim 6 wherein: The threaded connecting sleeve (112) is also provided with a first anti-slip groove for twisting.

8. The utility tip of claim 7 wherein: The threaded retaining sleeve (203) is also provided with a second anti-slip groove for twisting.

Citation Information

Patent Citations

  • Portable dental three-purpose gun device

    CN216985241U