CN212349169U

CN212349169U - Nozzle structure, liquid storage tank and air pump

Info

Publication number: CN212349169U
Application number: CN202020785882.8U
Authority: CN
Inventors: 张双喜; 高志慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-01-15
Anticipated expiration: 2030-05-13

Abstract

The utility model discloses a nozzle structure, a liquid storage tank and an air pump, wherein the nozzle structure comprises a gas outlet component and a liquid outlet component; the air outlet assembly comprises a first base and a gas nozzle; the gas nozzle is internally provided with a gas flow channel and is transversely fixed at the top of the first base; the liquid outlet assembly comprises a second base and a liquid nozzle; the liquid nozzle is fixed on the second base, the liquid outlet end of the liquid nozzle is positioned between the upper edge and the lower edge of the gas outlet port of the gas nozzle in the vertical direction, and the liquid nozzle is intersected with the central axis of the gas nozzle; the second base is positioned below the first base, and the second base is detachably connected with the first base. The nozzle structure divides the air outlet assembly and the liquid outlet assembly into two detachable independent components, and effectively avoids the technical problem of difficult treatment due to the separation of the air channel and the liquid channel.

Description

Nozzle structure, liquid storage tank and air pump

Technical Field

The utility model relates to a spraying social security specifically indicates a nozzle structure, liquid storage pot and air pump.

Background

With the improvement of life quality, the requirement of people on spraying house paint is also improved, the pursuit of color is realized, patterns in various shapes and different specifications are required to be sprayed, and therefore, the requirement is met by replacing the liquid storage tank for multiple times by one paint spray gun.

Ordinary air spraying becomes atmospheric pressure spraying again, uses the spray gun as the instrument, and the theory of operation of spray gun is: when compressed air with certain pressure is sprayed out from the annular hole of the nozzle, negative pressure is formed in front of the nozzle, the coating is pumped out through the central pore passage under the action of air pressure, and the coating is dispersed into fine coating particles after meeting with the compressed air. The basic function of a spray gun is to use compressed air to break up the coating into droplets and blow them onto the substrate. That is, paint is dispersed and worked by air atomization, and the key to atomization is the hood, nozzle and needle. At present, the spray nozzle and the gun needle of the spray gun sold on the market are formed by carrying out precise machining on firm, wear-resistant and corrosion-resistant V4A steel, a conical coating channel is arranged inside the spray nozzle and is matched with the front tip part of the gun needle, and a coating valve effect can be formed. The main functions of the air spray gun nozzle are represented by the following three aspects: providing a valve seat for a needle valve (a gun needle tip portion) to restrict or cut off the passage of the coating material; controlling the flow of the coating; the coating is directed into an atomizing air stream.

The nozzle of the prior structure mainly has the following two defects: 1. the liquid outlet channel and the gas outlet channel are overlapped, gas and liquid are sprayed out through one channel, once coating or paint is not used, the coating or paint is easy to condense, and therefore blocking occurs, and in the prior art, the liquid outlet channel and the gas outlet channel are overlapped, so that when blocking occurs, a nozzle needs to be detached, and cleaning is very troublesome; 2. in the using process, when the coating or the paint needs to be replaced, the liquid storage tank and the nozzle need to be cleaned every time, and particularly under the condition of frequent color changing, the cleaning process is troublesome, and the coating or the paint in the liquid storage tank is wasted; 3. when the paint or lacquer needs to be replaced, especially under the condition of frequent color changing, the color is easy to be mixed once the liquid storage tank or the nozzle is not thoroughly cleaned.

Disclosure of Invention

To the above-mentioned problem that prior art exists, the to-be-solved technical problem of the utility model is: how to prevent the nozzle from being blocked, and is convenient for replacing the liquid storage tank and avoiding the residual coating or paint in the liquid guide pipe from dropping.

In order to solve the technical problem, the utility model adopts the following technical scheme: a nozzle structure comprises an air outlet assembly and a liquid outlet assembly;

an air outlet assembly: comprises a first base and a gas nozzle;

the first base is provided with a first through hole arranged in the vertical direction;

the gas nozzle is internally provided with a gas flow channel, the gas nozzle is transversely fixed at the top of the first base, and the gas flow channel in the gas nozzle is intersected with the central axis of the first through hole;

liquid outlet assembly: comprises a second base and a liquid nozzle;

the second base is provided with a ventilation through hole and a catheter fixing piece which are arranged in the vertical direction;

the liquid guide pipe fixing piece is arranged at the bottom of the base II and extends downwards, and a through hole III is formed in the liquid guide pipe fixing piece;

the third through hole and the first through hole are coaxially arranged;

the liquid nozzle is arranged on the second base, a liquid outlet of the liquid nozzle is positioned between the upper edge and the lower edge of the gas outlet port of the gas nozzle in the vertical direction, and the central axis of the liquid nozzle is intersected with the central axis of the gas nozzle;

the second base is located below the first base, and the second base is detachably connected with the first base.

As an improvement, the nozzle structure comprises a gas nozzle fixing frame;

the gas nozzle fixing frame is positioned at the top of the first base, and the gas nozzle fixing frame and the first base are of an integrated structure;

the gas nozzle is fixed through a gas nozzle fixing frame.

As an improvement, the nozzle structure also comprises a dredging structure;

the dredging structure comprises a dredging needle and a dredging needle placing hole;

the dredging needle placing hole is vertically formed in the side face, close to the gas outlet end of the gas nozzle, of the fixing frame, and the dredging needle placing hole are in tight fit.

As an improvement, the nozzle structure further comprises a positioning structure;

the positioning structure comprises a positioning lug and a positioning through hole;

the positioning lug is fixed at the top of the second base and extends upwards;

the positioning through hole is formed in the bottom of the first base, and the positioning through hole and the through hole are coaxially arranged;

the positioning lug is in sliding tight fit with the positioning through hole;

the second through hole penetrates through the positioning lug.

As an improvement, a second through hole arranged in the vertical direction is formed in the positioning convex block, and the lower half part of the liquid nozzle is detachably connected with the second through hole.

A liquid storage tank comprises a tank body and a liquid outlet assembly, wherein the liquid outlet assembly is the liquid outlet assembly; and the second base is detachably connected with the top of the tank body.

As an improvement, the liquid storage tank also comprises a cover body used for sealing the tank body;

a blind hole is formed in the center of the inner side of the top of the cover body, and a first sealing rubber gasket is arranged in the blind hole;

when the cover body covers the top of the sealed tank body, the top of the liquid nozzle is abutted to the sealing rubber gasket in the blind hole.

As an improvement, a projection extending downwards is arranged at the center of the inner side of the top of the cover body, the projection is of a hollow structure, and the hollow part of the projection is coaxial with the blind hole;

when the cover body covers the top of the sealed tank body, the bottom of the bump covers the ventilation through hole;

and the bottom of the bump is provided with a circle of sealing rubber gasket II.

The air pump comprises an air pump body and an air outlet assembly, wherein the air outlet assembly is the air outlet assembly, and the air inlet end of a gas nozzle in the air outlet assembly is connected with the air outlet of the air pump.

Compared with the prior art, the utility model discloses at least, following advantage has:

1. the utility model provides a nozzle structure will give vent to anger the subassembly and go out the liquid subassembly and fall into two independent components of division detachable, and outlet channel sets up on the subassembly of giving vent to anger, and liquid outlet channel sets up on going out the liquid subassembly to ingenious in case when taking place the jam with outlet channel and liquid outlet channel separately, need not unpack the nozzle apart, but direct use dredge needle clearance liquid outlet channel can, convenient feasible.

2. Use the utility model provides a during nozzle structure, go out the liquid subassembly can lug connection on the liquid storage pot, when changing the liquid storage pot at every turn, as long as will go out the liquid subassembly and go out the gas subassembly and connect can, have on the one hand and effectively avoid frequently changing when look, wash the trouble of liquid storage pot and nozzle when changing coating or paint at every turn, on the other hand can also effectively prevent frequently changing when look because liquid storage pot and nozzle wash the problem that does not thoroughly lead to the cross color, can also avoid remaining the drippage problem of coating or paint in the catheter simultaneously.

Drawings

Fig. 1 is a schematic perspective view of an air outlet assembly.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a right side view of fig. 1.

Fig. 5 is a cross-sectional view at fig. 4A-a.

Fig. 6 is a schematic perspective view of the liquid outlet assembly.

Fig. 7 is a front view of fig. 6.

Fig. 8 is a cross-sectional view at fig. 7B-B.

Fig. 9 is a schematic perspective view of the cover.

Fig. 10 is a front view of fig. 9.

Fig. 11 is a cross-sectional view at fig. 10C-C.

Fig. 12 is an assembly view of the nozzle structure.

FIG. 13 is a perspective view of the fluid reservoir.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model discloses in the words that represent the position such as "upper", "lower", "left", "right", "top", "end", "interior", "outer" of introducing all be based on position when in actual use, the expression in above-mentioned position is only for more clear expression the technical scheme of the utility model, rather than right the utility model discloses technical scheme's restriction.

Example 1: referring to fig. 1-13, a nozzle structure includes an air outlet assembly and a liquid outlet assembly.

An air outlet assembly: including a first base 110 and a gas nozzle 120.

The first base 110 is provided with a first through hole 111 arranged in the vertical direction; the first through hole 111 is provided for facilitating the exit of the liquid outlet end of the liquid nozzle 220.

The gas nozzle 120 is internally provided with a gas flow channel, the gas nozzle 120 is transversely fixed at the top of the first base 110, and the gas flow channel in the gas nozzle 120 is intersected with the central axis of the first through hole 111; in a specific implementation, the gas nozzle 120 is preferably horizontally disposed, the gas flow channel in the gas nozzle 120 is divided into several sections, the diameter of the gas flow channel is smaller near the gas outlet end, specifically, the diameter of the gas flow channel at the gas outlet end of the gas nozzle 120 is 0.8-2mm, and the smaller the diameter of the gas flow channel near the gas outlet end is mainly used to increase the pressure of the gas outlet, so as to facilitate formation of negative pressure above the liquid outlet end of the liquid nozzle 220 on one hand, and to atomize the liquid sprayed from the liquid nozzle 220 on the other hand.

Liquid outlet assembly: comprises a second base 210 and a liquid nozzle 220; the liquid nozzle 220 is of a conventional structure, which is not shown in the drawings, and a general liquid nozzle 220 includes a connecting portion and a liquid spraying portion, the connecting portion is generally a cylinder, the liquid spraying portion is an elongated liquid outlet needle, the liquid outlet needle has a liquid outlet hole with a diameter of 0.8-2mm, and a through hole is formed in the cylinder and is coaxial with the liquid outlet hole in the liquid outlet needle.

The second base 210 has a ventilation through hole 215 and a catheter fixing member 213 arranged in a vertical direction. The catheter fixing part 213 is arranged at the bottom of the second base 210 and extends downwards, and the catheter fixing part 213 is provided with a third through hole 214.

The setting of ventilative through-hole 215 is mainly in order to guarantee the spraying in-process, goes out the unanimity of liquid bottle internal and external pressure, prevents that the spraying after a period, the too big liquid that leads to in the liquid bottle can't follow the nozzle blowout. The liquid guide pipe fixing piece 213 is mainly arranged for conveniently connecting a liquid guide pipe, when in spraying, the top of the liquid guide pipe is arranged on the liquid guide pipe fixing piece 213, the liquid guide pipe is tightly matched with the liquid guide pipe fixing piece 213 in a sealing manner, the bottom of the liquid guide pipe is positioned at the bottom of the liquid outlet bottle, the liquid inlet end of the liquid guide pipe is ensured to be positioned below the liquid level in the liquid storage tank, especially under the condition that the liquid level in the liquid storage tank is reduced, the position of the liquid inlet end of the liquid guide pipe in the vertical direction can be ensured to approach the lowest point.

The liquid nozzle 220 is installed on the second base 210, the top of the liquid nozzle 220 sequentially penetrates through the second through hole 211 and the first through hole 111, the top of the liquid nozzle 220 is located between the upper edge and the lower edge of the gas outlet port of the gas nozzle 120 in the vertical direction, and the central axis of the liquid nozzle 220 is intersected with the central axis of the gas nozzle 120. The liquid nozzle 220 and the base 210 can be detachably connected or fixedly connected; preferably, the detachable connection is selected for ease of use, for example, the detachable connection may be achieved by a tight fit or a threaded fit.

In particular, for ease of positioning, the central axis of the liquid nozzle 220 and the central axis of the gas nozzle 120 preferably intersect perpendicularly. The second base 210 is located below the first base 110, and the second base 210 is detachably connected to the first base 110.

As a modification, the nozzle structure further includes a gas nozzle holder 121; the gas nozzle fixing frame 121 is positioned at the top of the first base 110, and the gas nozzle fixing frame 121 and the first base 110 are of an integrated structure; in specific implementation, the gas nozzle fixing frame 121 is vertically fixed on the top surface of the first base 011. The gas nozzle 120 is fixed on the top of the gas nozzle fixing frame 121, and the central axis of the gas nozzle 120 is parallel to the top surface of the first susceptor 110. With gas nozzle mount 121 and base 110 structure as an organic whole mainly be for the location convenience, because the utility model provides a nozzle structure comprises the subassembly of giving vent to anger and play liquid subassembly, so gas nozzle is then very important with liquid nozzle 220's location relation, for concrete implementation, the utility model discloses in at first through gas nozzle mount 121 with gas nozzle's rigidity to fixed gas position of giving vent to anger is favorable to further fixing the relative position between gas nozzle and the liquid nozzle 220.

The nozzle structure further comprises a dredging structure comprising a dredging needle and a dredging needle placing hole 123; the dredging needle placing hole 123 is vertically arranged on the side face, close to the air outlet end of the air nozzle 120, of the fixing frame 121, and the dredging needle is tightly matched with the dredging needle placing hole 123. During specific implementation, liquid nozzle 220 or catheter blocking condition may appear, and the staff that sets up that the mediation structure can be convenient dredges, and the staff is direct to be placed the hole 123 from the mediation needle and takes out the mediation and dredges to liquid nozzle 220 or catheter, and is swift convenient.

The nozzle structure further comprises a positioning structure; the positioning structure comprises a positioning lug 221 and a positioning through hole 115; the positioning lug 221 is fixed on the top of the second base 210 and extends upwards; the positioning through hole 115 is arranged at the bottom of the first base 110, and the positioning through hole 115 and the first through hole 111 are coaxially arranged; the positioning lug 221 is in sliding tight fit with the positioning through hole 115; the second through hole 211 penetrates through the positioning bump 221.

In specific implementation, the positioning protrusion 221 may be a circular truncated cone or a step shape, when the positioning protrusion 221 is a circular truncated cone, the positioning through hole 115 matched with the positioning protrusion is also a circular truncated cone-shaped hole, and when the positioning protrusion 221 is a step shape, the positioning through hole 115 matched with the positioning protrusion is also a step hole.

The third through hole 214, the second through hole 211, the positioning through hole 115 and the first through hole 111 are coaxially arranged.

The positioning lug 221 is provided with a second through hole 211 arranged in the vertical direction, and the lower half part of the liquid nozzle 220 is detachably connected with the second through hole 211. During specific implementation, the lower half part of the liquid nozzle 220 is provided with an external thread, the second through hole 211 is a threaded hole, and the liquid nozzle 220 is in threaded connection with the second through hole 211, so that the detachable connection between the liquid nozzle 220 and the positioning bump 221 is realized. In actual use, an operator can adjust the distance between the top end of the liquid nozzle 220 and the gas outlet end of the gas nozzle 120 by screwing the liquid nozzle 220. A nut with internal threads may be further disposed at a portion of the second through hole 211 located at the positioning protrusion 221, and the nut is in interference fit with the second through hole 211, and the liquid nozzle 220 is in threaded connection with the nut.

Example two: referring to fig. 13, a liquid storage tank comprises a tank body 310 and a liquid outlet assembly, wherein the liquid outlet assembly is the liquid outlet assembly in the first embodiment; the liquid storage tank body 310 is the most common tank body 310 in the market, in the specific implementation, the second base 210 is in threaded connection with the tank body 310, when coating or paint is not used, the liquid outlet assembly forms a first layer of protection for the residual coating or paint in the tank body 310, as only the air through hole 215 on the second base 210 and the liquid outlet of the liquid nozzle 220 in the liquid outlet assembly can enter air, and the diameter of the liquid outlet hole on the liquid outlet needle at the top of the liquid nozzle 220 is only 0.8-2mm, only little air can enter the liquid storage tank.

In order to better seal the liquid storage tank 310 and prevent the unused coating or paint from being wasted due to air drying, the liquid storage tank further comprises a cover body 320 for sealing the tank body 310; a blind hole 325 is formed in the center of the inner side of the top of the cover body 320, and a first sealing rubber gasket 323 is arranged in the blind hole 325; when the cover 320 is covered on the top of the sealed tank 310, the top of the liquid nozzle 220 is located in the blind hole 325 and abuts against the first sealing rubber gasket 323 in the blind hole 325, so as to seal the liquid outlet at the top of the liquid nozzle 220. Specifically, the liquid outlet end of the liquid nozzle 220 has a liquid outlet needle, and when the cover 320 is on the top of the sealed can 310, the liquid outlet needle is located in the blind hole 325, and the liquid outlet hole of the liquid outlet needle is sealed by the first sealing rubber pad 323 in the blind hole 325.

A bump 327 extending downwards is arranged at the center of the inner side of the top of the cover body 320, the bump 327 is a hollow structure, and the hollow part of the bump 327 is coaxial with the blind hole 325; when the cover 320 is covered on the top of the sealed can 310, the bottom of the projection 327 covers the ventilation through hole 215; the bottom of the bump 327 has a second sealing rubber gasket. When the cover body is covered on the liquid outlet tank, the second sealing rubber pad at the bottom of the projection 327 just covers the air through hole 215, so as to seal the air through hole 215. Through two-layer protection, not only can effectively prevent that the coating or the paint that prevent that the not used up that do not use up from air-drying extravagantly, to the operating personnel of flow construction or touch-up paint, this kind of liquid storage pot very conveniently carries, more importantly, also obtains fine solution to the problem of frequent trade look in the work progress, the staff no longer need change the look at every turn and just wash the liquid storage pot, not only practiced thrift raw materials such as coating or paint, more convenient operation, the work efficiency is provided, it changes the look many times still to have guaranteed simultaneously, same colour does not have the colour difference, prevent the cross color.

Example three: an air pump comprises an air pump body and an air outlet assembly, wherein the air outlet assembly is the air outlet assembly in the first embodiment, and the air inlet end of an air nozzle 120 in the air outlet assembly is connected with an air outlet of the air pump. The air outlet of the air pump can be fixedly connected or detachably connected with the air inlet end of the air nozzle 120. The air pump can be a conventional off-electricity type air pump, namely a handheld charging air pump, and can also be an electric air pump.

The utility model provides a nozzle structure's theory of use as follows:

when the paint sprayer is used, the air inlet end of the air nozzle 120 is communicated with the air outlet end of the air pump, so that an air source is provided, the liquid storage tank 310, namely the cover body 320 of the paint or paint can, is opened, then the first base 110 and the second base 210 are connected together, and the first base 110 and the second base 210 are usually connected through threads, so that the paint sprayer is convenient to detach and provided with a liquid source. Starting the air pump, gas is spout from the gas outlet of gas nozzle 120, and the liquid outlet at liquid nozzle 220 top produces the disturbance to the air current at liquid nozzle 220 top, forms the negative pressure, and liquid in the liquid storage tank gets into from the bottom of catheter under the effect of pressure differential, then gets into liquid nozzle 220, spouts from the liquid outlet at liquid nozzle 220 top at last, simultaneously under the blowing of gas nozzle 120 gas-out end gas, and the atomizing scatters away. The second base 210 has a ventilation through hole 215, so as to keep the connection between the inside of the liquid storage tank and the outside, i.e. to ensure the same air pressure inside and outside the liquid storage tank.

When the paint or paint bucket needs to be replaced, the first base 110 is directly screwed, the first base 110 is separated from the second base 210, the second base 210 is kept on the liquid storage tank, then the cover body of the liquid storage tank is covered, the liquid storage tank is sealed, and the situation that a large amount of air enters the liquid storage tank to cause drying of the paint or the paint and the like cannot be used is prevented. The other liquid storage tank, namely the paint or paint bucket, is opened again, the second base 210 on the other liquid storage tank is connected with the first base 110, and the air pump is started to spray again.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A nozzle arrangement, characterized by: comprises an air outlet assembly and a liquid outlet assembly;

an air outlet assembly: comprises a base I (110) and a gas nozzle (120);

the first base (110) is provided with a first through hole (111) arranged in the vertical direction;

the gas nozzle (120) is internally provided with a gas flow channel, the gas nozzle (120) is transversely fixed at the top of the first base (110), and the gas flow channel in the gas nozzle (120) is intersected with the central axis of the first through hole (111);

liquid outlet assembly: comprises a second base (210) and a liquid nozzle (220);

the second base (210) is provided with a ventilation through hole (215) and a catheter fixing piece (213) which are arranged in the vertical direction;

the catheter fixing piece (213) is arranged at the bottom of the base II (210) and extends downwards, and a through hole III (214) is formed in the catheter fixing piece (213);

the third through hole (214) and the first through hole (111) are coaxially arranged;

the liquid nozzle (220) is arranged on the second base (210), a liquid outlet of the liquid nozzle (220) is positioned between the upper edge and the lower edge of the gas outlet port of the gas nozzle (120) in the vertical direction, and the central axis of the liquid nozzle (220) is intersected with the central axis of the gas nozzle (120);

the second base (210) is located below the first base (110), and the second base (210) is detachably connected with the first base (110).

2. The nozzle arrangement of claim 1, wherein: comprises a gas nozzle fixing frame (121);

the gas nozzle fixing frame (121) is positioned at the top of the first base (110), and the gas nozzle fixing frame (121) and the first base (110) are of an integral structure;

the gas nozzle (120) is fixed by a gas nozzle fixing frame (121).

3. The nozzle arrangement of claim 2, wherein: the device also comprises a dredging structure;

the dredging structure comprises a dredging needle and a dredging needle placing hole (123);

the dredging needle placing hole (123) is vertically formed in the side face, close to the air outlet end of the air nozzle (120), of the fixing frame (121), and the dredging needle is in tight fit with the dredging needle placing hole (123).

4. A nozzle arrangement according to any one of claims 1 to 3, wherein: the device also comprises a positioning structure;

the positioning structure comprises a positioning lug (221) and a positioning through hole (115);

the positioning lug (221) is fixed at the top of the second base (210) and extends upwards;

the positioning through hole (115) is arranged at the bottom of the first base (110), and the positioning through hole (115) and the first through hole (111) are coaxially arranged;

the positioning lug (221) is in sliding tight fit with the positioning through hole (115);

the second through hole (211) penetrates through the positioning bump (221).

5. The nozzle arrangement of claim 4, wherein: the positioning convex block (221) is provided with a second through hole (211) arranged in the vertical direction, and the lower half part of the liquid nozzle (220) is detachably connected with the second through hole (211).

6. A fluid reservoir, comprising a reservoir body (310) and a fluid outlet assembly according to claim 5; the second base (210) is detachably connected with the top of the tank body (310) (310).

7. The fluid reservoir of claim 6, further comprising a cover (320) for sealing the canister (310);

a blind hole (325) is formed in the center of the inner side of the top of the cover body (320), and a first sealing rubber gasket (323) is arranged in the blind hole (325);

when the cover body (320) covers the top of the sealing tank body (310), the top of the liquid nozzle (220) is abutted to the first sealing rubber gasket (323) in the blind hole (325).

8. The fluid reservoir as set forth in claim 6 wherein the cover (320) has a downwardly extending projection (327) centrally disposed on the inside of the top portion thereof, said projection (327) being hollow, the hollow portion of the projection (327) being coaxial with the blind bore (325);

when the cover body (320) is covered on the top of the sealed tank body (310), the bottom of the lug (327) covers the ventilation through hole (215);

the bottom of the bump (327) is provided with a second sealing rubber gasket.

9. An air pump, characterized in that: the air pump comprises an air pump body and an air outlet assembly, wherein the air outlet assembly is the air outlet assembly in claim 5, and the air inlet end of a gas nozzle (120) in the air outlet assembly is connected with an air outlet of the air pump.