CN212663928U

CN212663928U - Spray gun with metal hose

Info

Publication number: CN212663928U
Application number: CN202020867523.7U
Authority: CN
Inventors: 王东; 李林丰; 钟玉东
Original assignee: Suzhou Shoujie Environmental Protection Equipment Co ltd
Current assignee: Suzhou Shoujie Environmental Protection Equipment Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-03-09
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to the technical field of spray guns, in particular to a spray gun with a metal hose, which comprises a spray gun and a spray head, wherein the spray gun comprises an inner pipe and an outer pipe sleeved outside the inner pipe, the inner pipe and the outer pipe are both connected with the spray head, the spray head is provided with a water spraying hole and an air spraying hole, the outer pipe is communicated with the air spraying hole, the inner pipe comprises a first branch pipe and a second branch pipe, the second branch pipe is arranged between the first branch pipe and the spray head, one end of the second branch pipe is connected with the first branch pipe, and the other end of the second branch; one end of the second branch pipe close to the spray head is eccentrically arranged. The eccentric setting of second branch pipe can exert eccentric force to rivers for rivers self rotate, produce the vortex, consequently, when rivers blowout shower nozzle, rivers can take place the diffusion under the effect of the centrifugal force of self rotatory production, make rivers difficult for assembling into the water column, and the rivers can mix with gas more fully, thereby promote the atomization effect of spray gun.

Description

Spray gun with metal hose

Technical Field

The utility model belongs to the technical field of the spray gun technique and specifically relates to a spray gun with metal collapsible tube is related to.

Background

The externally-mixed atomizing spray gun is characterized in that gas and liquid are simultaneously introduced into the spray gun, the gas and the liquid are sprayed out through a nozzle of the spray gun, the gas and the liquid collide with each other on the outer side of a spray head, and the liquid forms fog drops under the impact of the gas and forms water mist.

In the prior art, the utility model with the publication number of CN207478836U specifically discloses an external mixing type atomization spray gun with strengthened surface, which comprises a spray gun body, a spray gun nozzle and a spray gun end enclosure; the spray gun body comprises a spray gun outer pipe and a spray gun inner pipe which are arranged in a coaxial sleeve; the inner pipe of the spray gun is a solution pipeline, and a cavity formed by sleeving the outer pipe of the spray gun and the inner pipe of the spray gun is an atomized air channel; the outer pipe of the spray gun is provided with an atomized air inlet, and the tail end of the inner pipe of the spray gun is provided with a solution inlet; the spray head of the spray gun is provided with an atomizing air hole, a solution spraying hole and a spray head liquid inlet hole; two ends of a spray gun nozzle are respectively provided with a horn-shaped groove, a solution spray hole penetrates through the bottoms of the two grooves to form a double-nozzle, and a plurality of atomizing air holes communicated with an atomizing air channel are respectively arranged on the inclined side walls of the grooves; the side surface of the spray head of the spray gun is at least provided with a spray head liquid inlet hole which communicates the solution pipeline with the solution spray hole; spray gun head sealing connection is on spray gun body top, and the spray gun body, the outside surface of spray gun shower nozzle and spray gun head all covers there is the cermet coating.

When the atomization spray gun is used, liquid flows to the spray head through the spray gun inner pipe and is sprayed out of the spray head, gas flows to the spray head through the spray gun outer pipe and is sprayed out of the spray head, and the gas and the liquid collide and are mixed with each other on the outer side of the spray head, so that the liquid is atomized.

The above scheme has the following defects: when liquid is sprayed out of the spray head through the spray gun inner pipe, high-pressure water columns are formed outside the spray head, and gas is easy to collide with the liquid located on the outermost sides of the water columns when being sprayed out of the spray head. However, because the pressure of the water column is high, the gas is not easy to collide with the liquid at the center of the water column, so that the gas and the liquid are not easy to be uniformly mixed, and the atomization effect of the spray gun can be reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides a spray gun with metal collapsible tube can make gaseous and liquid intensive mixing, promotes the atomization effect of spray gun.

The above object of the present invention is achieved by the following technical solutions:

a spray gun with a metal hose comprises a spray gun and a spray head connected with the end part of the spray gun, wherein the spray gun comprises an inner pipe and an outer pipe sleeved outside the inner pipe, the inner pipe and the outer pipe are both connected with the spray head, a water spray hole and a gas spray hole are formed in the spray head, the outer pipe is communicated with the gas spray hole, the inner pipe comprises a first branch pipe and a second branch pipe, the second branch pipe is arranged between the first branch pipe and the spray head, one end of the second branch pipe is connected with the first branch pipe, and the other end of the second branch pipe is communicated with the water spray hole; one end of the second branch pipe close to the spray head is eccentrically arranged.

Through adopting above-mentioned technical scheme, the spray gun rivers flow to shower nozzle department and spout from the shower nozzle through the inner tube when using, and the air current flows in the shower nozzle and spouts from the shower nozzle in from the outer tube, and when rivers flow to second branch pipe, because the second branch pipe is eccentric settings, the second branch pipe can exert an eccentric force to rivers, makes rivers produce the vortex at the in-process that flows. Consequently, when rivers flow to the shower nozzle in, rivers are in the rotation state, and when rivers spout from the shower nozzle, rivers can spread under the effect of the centrifugal force of self rotatory production, make rivers difficult the formation water column that assembles to improve the homogeneity of mixing between rivers and the air current, promote the atomization effect of spray gun.

The present invention may be further configured in a preferred embodiment as: the second branch pipe is set to be a metal hose, joints are arranged at two ends of the second branch pipe, and the second branch pipe is detachably connected with the first branch pipe through the joints.

Through adopting above-mentioned technical scheme, first branch pipe sets up to metal collapsible tube, convenience when can promote the installation of second branch pipe, and the second branch pipe passes through the joint simultaneously and can dismantle with first branch pipe and link, is convenient for maintain the second branch pipe.

The present invention may be further configured in a preferred embodiment as: a mounting seat for mounting the spray head is arranged between the spray gun and the spray head, the inner pipe and the outer pipe are all connected with the mounting seat; an air inlet channel and a water inlet channel are formed in the mounting seat, the inner pipe is communicated with the water spray hole through the water inlet channel, and the outer pipe is communicated with the air spray hole through the air inlet channel;

the water inlet channel comprises a main channel and an auxiliary channel which is perpendicular to the main channel and communicated with the main channel, the main channel is communicated with the spray head, and the auxiliary channel is communicated with the inner pipe.

Through adopting above-mentioned technical scheme, main entrance and accessory channel set up perpendicularly, and when rivers passed through inhalant canal, rivers can collide with the crossing position between main entrance and the accessory channel, produce the impact to rivers, make rivers be in unstable state to make rivers be difficult for assembling into the water column, be favorable to promoting the atomization effect of spray gun.

The present invention may be further configured in a preferred embodiment as: and a first guide plate which is spirally arranged is fixedly connected to the inner wall of the auxiliary channel.

Through adopting above-mentioned technical scheme, first guide plate spiral setting for first guide plate can strengthen the rotatory effect of rivers, promotes rivers self rotational speed, thereby promotes the atomizing effect of spray gun.

The present invention may be further configured in a preferred embodiment as: the air inlet channel comprises a main air inlet channel and a plurality of auxiliary air inlet channels, wherein the main air inlet channel is annularly arranged, the auxiliary air inlet channels are communicated with the main air inlet channel, the main air inlet channel is arranged around the main channel, and the auxiliary air inlet channels are uniformly distributed along the circumferential direction of the main channel; and a guide plate is arranged in the auxiliary air inlet channel and is spirally arranged.

Through adopting above-mentioned technical scheme, vice intake duct is along main entrance circumference evenly distributed, homogeneity when can making promotion air current blowout shower nozzle makes the air current can with rivers homogeneous mixing, and the deflector can make the air current rotate, produces the vortex to make the air current can mix with the rivers more fully, promote the atomization effect of spray gun.

The present invention may be further configured in a preferred embodiment as: the auxiliary air inlet channel is spirally arranged along the axis of the main channel.

Through adopting above-mentioned technical scheme, when the air current lets in the inlet channel, the vice intake duct that the heliciform set up can make air current self rotate, forms the vortex for the air current can mix with rivers when the blowout shower nozzle more fully, and can promote the homogeneity that rivers and air current mix.

The present invention may be further configured in a preferred embodiment as: the end part of the water spraying hole is arranged in a conical shape, the air spraying hole is arranged in an inclined shape, and one end, far away from the mounting seat, of the air spraying hole is located between one end, close to the mounting seat, of the air spraying hole and the water spraying hole.

Through adopting above-mentioned technical scheme, when rivers spout from the shower nozzle, the rivers produce the toper diffusion under the effect of the rotatory centrifugal force that produces of self, and the diffusion effect that can promote rivers is set up to hole for water spraying tip toper, makes the more even of rivers diffusion. Meanwhile, after the air flow passes through the inclined jet hole, the air flow can directly impact with the water flow, and the atomization effect of the spray gun can be effectively improved

The present invention may be further configured in a preferred embodiment as: the inner wall of the water spraying hole is fixedly connected with a second guide plate, the second guide plate is arranged in a spiral shape, and the spiral direction of the second guide plate is opposite to the spiral direction of the air inlet channel.

Through adopting above-mentioned technical scheme, the second guide plate can promote rivers self rotatory speed, makes rivers when the blowout shower nozzle, can be better with the air current impact each other to promote the atomization effect of spray gun.

The present invention may be further configured in a preferred embodiment as: one end of the spray head, which is close to the mounting seat, is provided with an annular air inlet groove, the air inlet groove is arranged around the axis of the water spray hole, and one side of the air inlet groove, which is far away from the mounting seat, is communicated with the air injection hole;

the spray head is rotatably connected with the mounting seat.

By adopting the technical scheme, when the rotating airflow is introduced into the air injection holes, the airflow can apply thrust to the spray head so as to enable the spray head to rotate; the shower nozzle is rotatory can drive air current and rivers rotatory in the lump, makes rivers be difficult for assembling into the water column, effectively guarantees the atomization effect of spray gun.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the second branch pipe is eccentrically arranged and can apply eccentric force to water flow, so that the water flow rotates per se to generate vortex, and when the water flow is sprayed out of the spray head, the water flow can be diffused under the action of centrifugal force generated by the rotation of the water flow per se, so that the water flow is not easy to converge into a water column, the water flow can be more fully mixed with gas, and the atomization effect of the spray gun is improved;

2. the air inlet channel is spirally arranged, so that air flow can rotate to generate vortex, the air flow can be fully mixed with water flow, and the atomization effect of the spray gun is improved;

3. the shower nozzle can rotate under the promotion of air current, effectively promotes the diffusion effect of rivers to guarantee the atomization effect of spray gun.

Drawings

FIG. 1 is a schematic view of the construction of an atomizing spray gun;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

fig. 3 is a structure for showing a main intake duct and an auxiliary intake duct.

In the figure, 1, a spray gun; 11. an inner tube; 111. a first branch pipe; 112. a second branch pipe; 113. a joint; 12. an outer tube; 2. a mounting seat; 21. a water inlet channel; 211. a main channel; 212. a secondary channel; 213. a first baffle; 22. an air intake passage; 221. a primary air intake; 222. a secondary air intake; 223. a guide plate; 3. a spray head; 31. a water spray hole; 32. a gas injection hole; 33. an air inlet groove; 34. a second baffle.

Detailed Description

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

Referring to fig. 1 and 2, for the utility model discloses a spray gun with metal collapsible tube, including spray gun 1 and with spray gun 1 one end fixed connection's mount pad 2 and with mount pad 2 rotate the shower nozzle 3 of being connected. The spray gun 1 comprises an inner pipe 11 for water flow to pass through and an outer pipe 12 sleeved outside the inner pipe 11, and a space for air flow to pass through is reserved between the outer pipe 12 and the inner pipe 11. The mounting seat 2 is provided with an air inlet passage 22 and a water inlet passage 21, and the inner pipe 11 is fixedly connected with the mounting seat 2 and communicated with the water inlet passage 21; the outer tube 12 is also fixedly connected to the mount 2, and the space between the outer tube 12 and the inner tube 11 communicates with the intake passage 22. The nozzle 3 is provided with an air injection hole 32 communicated with the air inlet passage 22 and a water spray hole 31 communicated with the water inlet passage 21. Thus, the water in the inner pipe 11 can be ejected from the shower head 3 through the water ejection holes 31, and the air flow can be ejected from the air ejection holes 32.

Referring to fig. 2, the inner pipe 11 includes a first branch pipe 111 and a second branch pipe 112 disposed between the first branch pipe 111 and the mounting base 2, one end of the second branch pipe 112 is detachably connected to the first branch pipe 111 through a joint 113, and the other end is fixedly connected to the mounting base 2. The second branch pipe 112 is eccentrically disposed, i.e., the axis of the second branch pipe 112 intersects the axis of the first branch pipe 111. When the water flows through the second branch pipe 112, the second branch pipe 112 can apply an eccentric force to the water flow, so that the water flow is rotated to generate a vortex. Meanwhile, the water flow rotation can apply thrust to the nozzle 3 to drive the nozzle 3 to rotate.

Referring to fig. 2, the water inlet passage 21 includes a sub-passage 212 communicating with the inner pipe 11 and a main passage 211 communicating with the head 3, the main passage 211 and the sub-passage 212 are disposed perpendicular to each other and communicate with each other, and when water flows into the water inlet passage 21 from the inner pipe 11, the water can collide with a position where the main passage 211 and the sub-passage 212 intersect. The inner wall of one end of the sub-channel 212 close to the nozzle 3 is fixedly connected with a first guide plate 213, the first guide plate 213 is spirally arranged, and when water flows through the first guide plate 213, the first guide plate 213 can keep the water flow in a rotating state.

Referring to fig. 2 and 3, the intake passage 22 includes a main intake passage 221 arranged in a ring shape and four auxiliary intake passages 222 communicated with the main intake passage 221, the main intake passage 221 is arranged around the main passage 211, the four auxiliary intake passages 222 are uniformly distributed along the circumference of the axis of the main passage 211, the four auxiliary intake passages 222 are arranged in parallel with the main passage 211, and the auxiliary intake passages 222 are spirally arranged around the main passage 211.

Referring to fig. 2, a second guide plate 213 is fixedly connected to an inner wall of the water spraying hole 31, the second guide plate 213 can maintain a state of water flow rotation, a lower end of the water spraying hole 31 is disposed in a conical shape, and when the water flow is sprayed from the water spraying hole 31, the water flow is in a conical diffusion shape under the action of centrifugal force generated by the rotation of the water flow, so as to form a conical water curtain.

Referring to fig. 2, an annular air inlet groove 33 is formed between the air injection hole 32 and the mounting seat 2, and the air inlet groove 33 is arranged around the axis of the water spray hole 31; one side of the air inlet groove 33 close to the mounting seat 2 is communicated with the air inlet channel 22, and the other side is communicated with the air injection hole 32. Eight air injection holes 32 are arranged, and the eight air injection holes 32 are uniformly distributed along the circumference of the water spray hole 31; the eight air injection holes 32 are all arranged obliquely, and one ends of the air injection holes 32 far away from the mounting seat 2 are positioned between one ends of the air injection holes 32 close to the mounting seat 2 and the water spray holes 31. The water jet is ejected from the water jet hole 31, and simultaneously, the air flow can be ejected from the air jet hole 32.

The implementation principle of the embodiment is as follows: when the lance 1 is in use, a flow of water is passed into the inner tube 11 and a flow of gas is passed between the inner tube 11 and the outer tube 12. The water flow rotates under the action of the second branch pipe 112, enters the water inlet channel 21, keeps a self-rotating state under the action of the first guide plate 213, is introduced into the water spraying holes 31, and is sprayed out of the spray head 3 through the second guide plate 213.

Meanwhile, the gas flow enters the gas injection holes 32 through the gas inlet channel 22, and the gas rotates under the action of the gas inlet channel 22 and pushes the spray head 3 to rotate. Finally, the air flow is ejected from the air ejection holes 32, and the air flow collides with the water flow to atomize the water flow.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a spray gun with metal collapsible tube, includes spray gun (1) and shower nozzle (3) with spray gun (1) end connection, spray gun (1) includes inner tube (11) and cover and establish outer tube (12) in inner tube (11) outside, inner tube (11) and outer tube (12) all are connected with shower nozzle (3), hole for water spraying (31) and fumarole (32) have been seted up on shower nozzle (3), outer tube (12) are linked together its characterized in that with fumarole (32): the inner pipe (11) comprises a first branch pipe (111) and a second branch pipe (112), the second branch pipe (112) is arranged between the first branch pipe (111) and the spray head (3), one end of the second branch pipe (112) is connected with the first branch pipe (111), and the other end of the second branch pipe (112) is communicated with the water spray hole (31); one end of the second branch pipe (112) close to the spray head (3) is eccentrically arranged.

2. A spray gun with a metal hose according to claim 1, characterized in that: the second branch pipe (112) is set as a metal hose, a joint (113) is arranged at the end part of the second branch pipe (112), and the second branch pipe (112) is detachably connected with the first branch pipe (111) through the joint (113).

3. A spray gun with a metal hose according to claim 1, characterized in that: a mounting seat (2) for mounting the spray head (3) is arranged between the spray gun (1) and the spray head (3), the inner pipe (11) and the outer pipe (12) are all connected with the mounting seat (2); an air inlet channel (22) and a water inlet channel (21) are formed in the mounting seat (2), the inner pipe (11) is communicated with the water spray holes (31) through the water inlet channel (21), and the outer pipe (12) is communicated with the air spray holes (32) through the air inlet channel (22);

the water inlet channel (21) comprises a main channel (211) and an auxiliary channel (212) which is perpendicular to the main channel (211) and communicated with the main channel (211), the main channel (211) is communicated with the spray head (3), and the auxiliary channel (212) is communicated with the inner tube (11).

4. A spray gun with a metal hose according to claim 3, characterized in that: and a first guide plate (213) which is spirally arranged is fixedly connected to the inner wall of the auxiliary channel (212).

5. A spray gun with a metal hose according to claim 4, characterized in that: the air inlet channel (22) comprises a main air inlet channel (221) which is annularly arranged and a plurality of auxiliary air inlet channels (222) communicated with the main air inlet channel (221), the main air inlet channel (221) is arranged around the main channel (211), and the auxiliary air inlet channels (222) are uniformly distributed along the circumferential direction of the main channel (211); a guide plate (223) is arranged in the auxiliary air inlet channel (222), and the guide plate (223) is spirally arranged.

6. A spray gun with a metal hose according to claim 5, characterized in that: the auxiliary air inlet channel is spirally arranged along the axis of the main channel (211).

7. A spray gun with a metal hose according to claim 6, characterized in that: the end part of the water spraying hole (31) is arranged in a conical shape, the air spraying hole (32) is arranged in an inclined manner, and one end, far away from the mounting seat (2), of the air spraying hole (32) is located between one end, close to the mounting seat (2), of the air spraying hole (32) and the water spraying hole (31).

8. A spray gun with a metal hose according to claim 7, characterized in that: the inner wall of the water spray hole (31) is fixedly connected with a second guide plate (34), the second guide plate (34) is arranged in a spiral shape, and the spiral direction of the second guide plate (34) is opposite to the spiral direction of the air inlet channel (22).

9. The spray gun with the metal hose according to claim 8, wherein: one end, close to the mounting seat (2), of the spray head (3) is provided with an annular air inlet groove (33), the air inlet groove (33) is arranged around the axis of the water spray hole (31), and one side, far away from the mounting seat (2), of the air inlet groove (33) is communicated with the air spray hole (32);

the spray head (3) is rotatably connected with the mounting seat (2).