CN116603655A - Foam spray gun - Google Patents

Abstract

The invention discloses a foam spray gun, which relates to the technical field of liquid spray guns. The invention aims to solve the problem that the screen in the foam spray gun is easily blocked. The invention includes a spray gun body whose output end is connected with a spray head , the nozzle is provided with a liquid outlet, and a plurality of flow channels are provided on the surface of the side of the nozzle with the liquid outlet inside, and the plurality of flow channels are evenly arranged with the liquid outlet as the center of the circle, One end of the flow passage communicates with the liquid outlet, and the diameter of the end of the spray gun body close to the spray head is larger than the diameter of the liquid outlet; the surface of the spray head away from the spray gun body is hinged with a screen net.

Description

foam spray gun

technical field

The invention relates to the technical field of liquid spray guns, in particular to a foam spray gun.

Background technique

The spray gun is a device that uses liquid or compressed air to release quickly as power. The spray gun is divided into two types: normal pressure type and pressurized type. , and what is sprayed is still liquid. When the liquid is sprayed onto the wall, glass surface or other object surfaces, the liquid will flow downward, causing a certain amount of waste.

In view of the existing problems mentioned above, the Chinese patent patent name is a foam spray gun, and the patent No. CN101797539B is to utilize a one-way valve, the first screen and the second screen to foam the liquid, so that the nozzle of the spray gun The amount of sprayed liquid foam is more abundant, thereby avoiding liquid downflow or reducing the downflow of liquid, and the purpose of reducing liquid waste has been achieved. However, the first screen and the second screen are fixedly installed inside the spray gun and cannot be adjusted, and it is easier to hang sundries on the screen. Over time, the screen is more likely to be blocked.

Contents of the invention

In order to solve the above problem, that is, the screen in the foam spray gun is prone to blockage, the present invention proposes a foam spray gun, which includes a spray gun body, the output end of the spray gun body is connected with a spray head, and the spray head is provided with A liquid outlet, a number of flow channels are opened on the surface of the side of the spray head where the liquid outlet is opened, and several of the flow channels are evenly arranged with the liquid outlet as the center of the circle, and one end of the flow channel In communication with the liquid outlet, the diameter of the end of the spray gun body close to the spray head is larger than the diameter of the liquid outlet; the surface of the spray head away from the spray gun body is hinged with a screen.

By adopting the above-mentioned technical scheme, the liquid sprayed from the spray gun body will finally gather at the liquid outlet through several flow channels, and the liquid in the multiple flow channels will collide when they are collected at the liquid outlet, which will play a role in foaming. After the liquid is sprayed out through the liquid outlet, it will be sprayed onto the screen, and then the screen will foam the liquid a second time, so that the amount of foam in the sprayed liquid will be more abundant, and the purpose of spraying foam will be achieved. , The screen and the nozzle are hinged, which can facilitate the cleaning of the screen and prevent the screen from being blocked by debris.

A further setting of the present invention is that: the two sides of the screen are provided with clamping parts, and the spray head is provided with a clamping block matching the clamping parts.

By adopting the above technical solution, the cooperation between the clamping part and the clamping block can prevent the screen from being washed away by the liquid ejected from the liquid outlet.

A further setting of the present invention is: the spray gun body includes a shell, a gun body is arranged inside the shell, the output end of the gun body protrudes from the shell to connect with the spray head, and the input end of the gun body A suction pipe is connected; the gun body is also connected with a threaded cap for connecting the bottle, and the threaded cap is sleeved on the suction pipe; the inside of the gun body is also provided with a compression mechanism for compressing air One end of the compression mechanism protrudes from the gun body; a wrench is also rotatably connected to the gun body, and one end of the compression mechanism protruding from the gun body is connected with the wrench for driving The compression mechanism moves.

By adopting the above technical scheme, the shell can protect the gun body, the spray gun body can be connected with the bottle containing the liquid through the threaded cap, and the liquid in the bottle can be extracted to the Inside the gun body, and then sprayed out from the nozzle.

The further configuration of the present invention is: the gun body is provided with a liquid inlet chamber, the liquid inlet chamber communicates with the suction pipe, the liquid inlet chamber communicates with a compression chamber through a one-way valve plate, and the compression mechanism Sleeved in the compression chamber for compressing the space in the compression chamber, the compression chamber communicates with a liquid outlet chamber, and the liquid outlet chamber is connected to the flow channel in the nozzle through a liquid outlet channel Pass.

By adopting the above technical scheme, the cooperation of the compression mechanism and the compression chamber can draw the liquid in the bottle into the liquid chamber along the suction pipe, and then enter the compression chamber through the one-way valve plate, and when the compression mechanism pushes , the liquid in the compression chamber will be pushed into the liquid outlet chamber, enter the flow channel along the liquid outlet channel, and finally be sprayed out from the liquid outlet on the nozzle.

A further setting of the present invention is: the gun body is also provided with an inverted cavity, and one end of the inverted cavity close to the threaded cap is provided with a liquid inlet, and the liquid inlet is arranged above the threaded cap, the A transition cavity is set inside the inversion cavity, and a through groove is opened on the side wall of the transition cavity, the inversion cavity communicates with the transition cavity through the through groove, and the bottom end of the transition cavity is connected to the inlet The liquid chambers are connected and arranged in a tapered shape, and balls are arranged in the transition chamber, and the balls are used to block the communication between the transition chamber and the liquid inlet chamber.

By adopting the above-mentioned technical scheme, when the bottle body is inverted, the liquid in the inverted bottle will enter the inversion chamber through the liquid inlet, and then enter the transition chamber through the through groove, and when the bottle body is inverted, the ball under the action of gravity At this time, the transition chamber will communicate with the liquid inlet chamber, and the liquid in the transition chamber will flow into the liquid inlet chamber, and then through the cooperation of the compression mechanism, the compression chamber and the one-way valve plate , then the purpose of spraying foam after the bottle body is inverted can be realized.

The beneficial effects of the present invention are:

1. By setting the flow channel, the purpose of foaming the liquid for the first time can be realized, and by setting the screen, the purpose of foaming the liquid for the second time can be realized, so that the sprayed liquid foam can be denser and richer. At the same time, the hinged connection between the screen and the nozzle can facilitate the cleaning of the screen, thereby solving the problem that the screen is prone to blockage.

2. Through the cooperation of the inversion cavity and the transition cavity, the purpose of using the bottle body upside down can be realized.

Description of drawings

Fig. 1 shows a schematic structural diagram of the present invention.

Fig. 2 shows a cross-sectional view along A-A direction.

Fig. 3 shows the first structural diagram of the gun body.

Figure 4 shows a bottom view of the gun body.

Fig. 5 shows the second structural diagram of the gun body.

Fig. 6 shows a schematic structural view of the spray head.

Figure 7 shows a partial enlarged view at A.

Reference signs: 1, spray gun body; 11, shell; 12, gun body; 121, liquid inlet chamber; 122, compression chamber; 123, one-way valve plate; 124, liquid outlet chamber; 1241, one-way valve plate; 125 1, liquid outlet channel; 126, inverted cavity; 1261, liquid inlet; 127, transition cavity; 1271, through groove; 1272, ball; 13, wrench; 14, threaded cap; 15, suction pipe; 2, nozzle; 21. Liquid outlet; 22. Runner; 23. Screen; 24. Clamping block; 3. Compression mechanism; 31. Piston; 32. Spring.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

The present invention proposes a foam spray gun, which includes a spray gun body 1 , a spray head 2 is clipped to the output end of the spray gun body 1 , and a liquid outlet 21 is opened on the spray head 2 . The inside of the nozzle 2 is provided with four flow channels 22, and the four flow channels 22 are evenly arranged around the liquid outlet 21. The end of the flow channel 22 close to the liquid outlet 21 is connected with the liquid outlet 21, so that Liquid can flow into the liquid outlet 21 .

The diameter of the end of the spray gun body 1 near the nozzle 2 is larger than the diameter of the liquid outlet 21, so that the end of the spray gun body 1 and the nozzle 2 can completely cover the liquid outlet 21, and the end of the spray gun body 1 near the nozzle 2 The radius is smaller than the length of the flow channel 22, so that the spray gun body 1 will not completely cover the flow channel 22, and the liquid flowing out of the spray gun body 1 will flow into the liquid outlet 21 along the four flow channels 22 instead of directly flowing into it. In and out of the liquid port 21, the liquid in the four flow channels 22 will be concentrated into the liquid outlet 21, and when the liquid in the four flow channels 22 is collected in the liquid outlet 21, the four water flows will collide with each other, and then The effect of foaming is achieved, that is, the purpose of foaming the liquid for the first time is completed.

The side surface of the spray head 2 away from the spray gun body 1 is hinged with a screen 23, and the screen 23 is hinged on the top of the spray head 2, so that the screen 23 and the spray head 2 can be turned over, and the screen 23 can discharge liquid The liquid ejected from the port 21 undergoes second foaming. The two sides of the screen 23 are provided with clamping parts, and the nozzle 2 is provided with a clamping block 24 suitable for the clamping part, and the distance between the two clamping blocks 24 is smaller than that between the two clamping parts. In this way, after turning the screen 23 down, push the two clamping parts between the two clamping blocks 24, so that the two clamping blocks 24 will clamp the two clamping parts to avoid liquid discharge The liquid ejected from the port 21 will flush the screen 23 open.

By hingedly connecting the screen 23 with the spray head 2 and turning it over, the cleaning of the screen 23 can be facilitated, thereby preventing the screen 23 from being blocked by sundries.

The spray gun body 1 includes a casing 11, and a gun body 12 is installed in the casing 11. The casing 11 can protect the gun body 12. The output end of the gun body 12 extends out of the casing 11 and is engaged with the nozzle 2. The input end of the input end is glued and connected with a suction tube 15, which is used to extend into the bottle containing the liquid, so as to suck the liquid in the bottle into the gun body 12, and the gun body 12 is also clamped with threads The cap 14 and the threaded cap 14 are used for the connection between the gun body 12 and the bottle body, and the threaded cap 14 is sleeved on the pipette 15 .

A compression mechanism 3 is installed inside the gun body 12 for compressing the air in the gun body 12 , and one end of the compression mechanism 3 protrudes from the gun body 12 . A wrench 13 is rotatably connected to the gun body 12 , and one end of the compression mechanism 3 protruding from the gun body 12 is rotatably connected with the wrench 13 for driving the compression mechanism 3 to move.

The gun body 12 is provided with a liquid inlet chamber 121, the input end of the liquid inlet chamber 121 is connected with the liquid suction pipe 15, and the output end of the liquid inlet chamber 121 is connected with a compression chamber 122 through a one-way valve plate 123, and the one-way valve plate 123 The outlet of is set toward the compression chamber 122 . The liquid mechanism is coaxially set in the compression chamber 122. The compression mechanism 3 includes a piston 31. One end of the piston 31 is set in the compression wall. The inside of 31 is sheathed with a spring 32 , one end of the spring 32 abuts against the piston 31 , and the other end abuts against one end of the compression chamber 122 , and the spring 32 is used for resetting the piston 31 .

A liquid outlet chamber 124 is also provided in the chamber, the compression chamber 122 communicates with the liquid outlet chamber 124 , and the liquid outlet chamber 124 communicates with the nozzle 2 through a liquid outlet channel 125 .

Also be provided with inversion chamber 126 in the gun body 12, inversion chamber 126 is provided with liquid inlet 1261 near one end of threaded cap 14, and liquid inlet 1261 is arranged on the top of threaded cap 14, when the bottle body is turned upside down, the liquid in the bottle will It flows into the inversion chamber 126 from the liquid inlet 1261. The inversion chamber 126 is provided with a transition chamber 127. The side wall of the transition chamber 127 is provided with a through groove 1271. The inversion chamber 126 and the transition chamber 127 are connected through the through groove 1271. , so that the liquid in the inversion chamber 126 can flow into the transition chamber 127 along the through groove 1271 .

The bottom end of the transition cavity 127 communicates with the liquid inlet cavity 121 and is conical. The transition cavity 127 is provided with a ball 1272 with the same diameter as the transition cavity 127. When the ball 1272 is located at the conical end of the transition cavity 127 , can block the liquid inlet chamber 121 and the transition chamber 127 .

A one-way valve plate 1241 is installed between the liquid outlet cavity 124 and the liquid outlet channel 125 , and the outlet of the one-way valve plate 1241 is set toward the liquid outlet channel 125 .

Upright injection process: Press the wrench 13 at the beginning to move the piston 31 into the compression cylinder. The channel 125 flows out from the liquid outlet 21 of the spray head 2, and then the wrench 13 is loosened. Under the action of the spring 32, the piston 31 will be pushed by the spring 32 to move away from the compression chamber 122, and under the action of the one-way valve plate 1241 , the air in the liquid inlet chamber 121 will not flow to the compression chamber 122, but the air in the liquid inlet chamber 121 will be drawn into the compression chamber 122, and then the liquid will be sucked into the liquid inlet chamber 121 along the suction pipe 15 Then, it is sucked into the compression chamber 122 by the liquid inlet chamber 121, and when the wrench 13 is pressed again, since the compression chamber 122 is filled with liquid at this time, the piston 31 will push the liquid to flow to the liquid outlet chamber 124, and then along the The liquid outlet channel 125 flows into the four flow channels 22, and then converges to the liquid outlet 21 along the four flow channels 22, and collides for the first foaming, and the liquid foamed for the first time flows along the liquid outlet 21 is sprayed onto the screen 23 for the second foaming, and is finally sprayed out of the nozzle 2, which completes an upright spraying process.

Inverted injection process: when the bottle body is inverted or tilted, the input end of the suction tube 15 will leak out of the liquid surface, and the liquid suction tube 15 will not be able to absorb liquid at this time, and the liquid will flow into the inversion chamber from the liquid inlet 1261 after being inverted 126, when it flows into the transition cavity 127 through the through groove 1271, and when it is inverted, the ball 1272 will move to the end of the transition cavity 127 away from the taper, and the liquid in the transition cavity 127 will flow into the liquid inlet cavity 121 Then, by pressing the wrench 13, the liquid in the liquid inlet chamber 121 is sucked into the compression chamber 122, squeezed into the liquid outlet chamber 124, flows into the four flow channels 22 along the liquid outlet channel 125, and collects At the liquid outlet 21, a collision occurs to complete the first foaming, and then it is sprayed to the screen 23 for the second foaming, and finally it is sprayed out of the nozzle 2, that is, an inverted spraying process is completed.

In summary, the present invention can achieve the purpose of foaming the liquid for the first time by setting the flow channel 22, and can realize the purpose of foaming the liquid for the second time by setting the screen 23, and then make the ejected The liquid foam can be denser and richer, and at the same time, the hinged connection between the screen 23 and the nozzle 2 can facilitate the cleaning of the screen 23 , thereby solving the problem that the screen 23 is prone to blockage. Through the cooperation of the inversion cavity 126 and the transition cavity 127, the purpose of using the bottle body upside down can be realized.

While the invention has been described with reference to a preferred embodiment, various modifications may be made thereto and equivalents may be substituted for parts thereof without departing from the scope of the invention, in particular, as long as there are no structural conflicts , the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships The term is based on the direction or positional relationship shown in the drawings, which is for convenience of description only, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a Invention Limitations. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be the internal communication of two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

The term "comprising" or any other similar term is intended to cover a non-exclusive inclusion such that a process, article, or apparatus/apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed, or includes Elements inherent in these processes, articles, or equipment/devices.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims (5)

1. A foam spray gun, comprising a spray gun body (1), the output end of the spray gun body (1) is connected with a nozzle (2), and the nozzle (2) is provided with a liquid outlet (21), its characteristics In that: a plurality of flow channels (22) are provided on the side surface of the spray head (2) where the liquid outlet (21) is opened, and the plurality of flow channels (22) are connected with the liquid outlet (21) The center of the circle is evenly arranged, one end of the flow channel (22) communicates with the liquid outlet (21), and the diameter of the end of the spray gun body (1) close to the spray head (2) is larger than that of the liquid outlet The diameter of (21); the side surface of the spray head (2) away from the spray gun body (1) is hinged with a screen (23). 2. The foam spray gun according to claim 1, characterized in that: the two sides of the screen (23) are provided with clamping parts, and the spray head (2) is provided with the clamping part Matching clamping block (24). 3. foam spray gun according to claim 1, is characterized in that: described spray gun body (1) comprises shell (11), and gun body (12) is arranged in the described shell (11), and described gun body ( The output end of 12) stretches out described casing (11) and is connected with described shower head (2), and the input end of described gun body (12) is connected with liquid suction pipe (15); On described gun body (12), Also be connected with the threaded cap (14) that is used to connect bottle body, described threaded cap (14) is sleeved on the described suction pipe (15); Described gun body (12) inside is also provided with the compressed air that is used for compressed air. Mechanism (3), wherein one end of said compression mechanism (3) protrudes from said gun body (12) and is set; Also rotatably connected with a wrench (13) on said gun body (12), said compression mechanism (3) One end protruding from the gun body (12) is connected with the wrench (13) for driving the compression mechanism (3) to move. 4. The foam spray gun according to claim 3, characterized in that: the gun body (12) is provided with a liquid inlet chamber (121), and the liquid inlet chamber (121) is connected with the liquid suction pipe (15) The liquid inlet chamber (121) communicates with the compression chamber (122) through the one-way valve plate (123), and the compression mechanism (3) is sleeved in the compression chamber (122) for compressing the The space in the compression chamber (122), the compression chamber (122) is connected with the liquid outlet chamber (124), and the liquid outlet chamber (124) is connected with the nozzle (2) through the liquid outlet channel (125). The flow channels (22) are connected. 5. The foam spray gun according to claim 3, characterized in that: an inverted chamber (126) is also provided in the gun body (12), and the inverted chamber (126) is close to one end of the threaded cap (14) A liquid inlet (1261) is opened, and the liquid inlet (1261) is arranged above the threaded cap (14), and a transition chamber (127) is set inside the inversion chamber (126), and the transition chamber A through groove (1271) is opened on the side wall of (127), and the inverted cavity (126) communicates with the transition cavity (127) through the through groove (1271), and the bottom of the transition cavity (127) The end communicates with the liquid inlet chamber (121), and is set in a tapered shape, and a ball (1272) is arranged in the transition chamber (127), and the ball (1272) is used to block the transition chamber (127) Communication with the liquid inlet chamber (121).