CN216396752U - Airless high-pressure spray gun - Google Patents
Airless high-pressure spray gun Download PDFInfo
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- CN216396752U CN216396752U CN202122843465.1U CN202122843465U CN216396752U CN 216396752 U CN216396752 U CN 216396752U CN 202122843465 U CN202122843465 U CN 202122843465U CN 216396752 U CN216396752 U CN 216396752U
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- liquid
- liquid outlet
- outlet channel
- spray gun
- plunger pump
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- 239000007921 spray Substances 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 153
- 239000000463 material Substances 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 14
- 239000003973 paint Substances 0.000 abstract description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052744 lithium Inorganic materials 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000011550 stock solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an airless high-pressure spray gun, which comprises a shell, and a motor, a plunger pump, an ejector pin assembly and a liquid outlet assembly which are arranged in the shell, wherein the motor is used for driving the plunger pump to work; the liquid storage chamber is arranged between the plunger pump and the liquid outlet component, so that liquid such as paint and the like pressurized by the plunger pump is firstly gathered in the liquid storage chamber, the pressurized liquid is buffered, the liquid pressure in the liquid storage chamber is uniformly distributed, the phenomenon of intermittent spraying is avoided, and the spray gun can realize high-quality spraying by adopting a small motor with low current and low power; and for the spray gun powered by the lithium battery, the low-energy-consumption motor can be adopted, so that the endurance working time of the lithium battery is greatly prolonged.
Description
Technical Field
The utility model relates to a spray gun for spraying paint, liquid and the like, in particular to an airless high-pressure spray gun.
Background
High-pressure airless spraying, also called airless spraying, refers to a spraying mode that paint, coating and the like are directly pressurized by using a high-pressure plunger pump to form high-pressure paint, and atomized airflow is formed at a spray gun mouth to act on the surface of an object (a wall surface or a woodware surface). The tool used in airless spraying, namely an airless high-pressure spray gun, needs to improve the piston round-trip times of the plunger pump in order to achieve a better spraying effect, the high-frequency work of the piston depends on the power of the motor, the larger the power of the motor is, the higher the energy consumption is, the larger the volume is, and the volume is uneconomical; the endurance time of lithium battery-driven products is very short, and convenience cannot be provided for consumers. If the motor in the spray gun cannot reach high power and the plunger pump piston cannot work at high frequency, the atomization of the spray is intermittent, the spray particles are coarse, and the spraying quality is poor.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an airless high-pressure spray gun which can realize low power and high efficiency and has high-quality spraying effect.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an airless high pressure spray gun, is in including casing and setting motor, plunger pump, thimble assembly and play liquid subassembly in the casing, the motor be used for the drive the work of plunger pump, the plunger pump inhale the material pipe of fixedly connected with on the material mouth, inhale the material pipe and stretch into in the material kettle, the casing in be provided with the stock solution room, the import of stock solution room with the pressure boost export of plunger pump be linked together, the export of stock solution room with play liquid subassembly be linked together.
Furthermore, the liquid outlet assembly comprises a liquid outlet joint and a nozzle which are connected, a liquid outlet channel is arranged in the liquid outlet joint, the ejector pin assembly is hermetically connected with the liquid outlet joint, an ejector pin in the ejector pin assembly extends into the liquid outlet channel, the liquid outlet channel is communicated with the nozzle, and an outlet of the liquid storage chamber is communicated with the liquid outlet channel.
Furthermore, a pressure release valve and a liquid return pipe are respectively arranged on the liquid outlet joint, the pressure release valve is used for controlling the on-off of the liquid return pipe and the liquid outlet channel, and the liquid return pipe extends into the material pot.
Further, the pressure release valve comprises an end cover, a valve core and a spring, a hollow first connecting arm is integrally arranged on the liquid outlet joint, the first connecting arm is provided with a liquid return port which is respectively communicated with the liquid outlet channel and the liquid return pipe, the valve core is arranged in the first connecting arm and is in sealing sliding fit with the first connecting arm, the end cover is fixed at the end part of the first connecting arm, the spring is pressed between the valve core and the end cover, when the liquid pressure in the liquid outlet channel is less than the elastic force of the spring, the valve core blocks the liquid return port, so that the liquid return pipe is not communicated with the liquid outlet channel, when the liquid pressure in the liquid outlet channel is larger than the elastic force of the spring, the liquid return pipe is communicated with the liquid outlet channel through the liquid return port.
Furthermore, an exhaust valve and an exhaust pipe are respectively arranged on the liquid outlet joint, the exhaust valve is used for controlling the on-off of the exhaust pipe and the liquid outlet channel, and the exhaust pipe extends into the material pot.
Further, discharge valve include knob and jam, play liquid joint on an organic whole be provided with hollow second linking arm, the second linking arm on be provided with the gas vent, the gas vent respectively with the blast pipe play liquid channel be linked together, the knob with the tip looks spiro union of second linking arm, the jam set up the second linking arm in and with second linking arm seal fit, the jam with the knob be connected, work as the jam plug up the gas vent during, the blast pipe with play liquid channel not communicate, work as the jam let open the gas vent during, the blast pipe with play liquid channel pass through the gas vent be linked together.
Furthermore, a connecting ball head is arranged on the knob, a connecting ball hole is formed in one end of the plug, and the connecting ball head is matched with the connecting ball hole; through the connection of the ball head, when the knob is rotated, the plug can only move linearly, and the plug can be prevented from rotating along with the knob.
Further, the motor drives the plunger pump through the speed reducer so as to reduce the working frequency of the plunger pump.
Compared with the prior art, the spray gun has the advantages that the liquid storage chamber is arranged between the plunger pump and the liquid outlet assembly, so that liquid such as paint and the like pressurized by the plunger pump is firstly gathered in the liquid storage chamber, the pressurized liquid is buffered, the liquid pressure in the liquid storage chamber is uniformly distributed, the spray gun adopts a small motor with low current and low power, and the phenomenon of discontinuous spraying can be avoided under the condition of low-frequency work of the plunger pump, so that high-quality spraying is realized; and for the spray gun powered by the lithium battery, the low-energy-consumption motor can be adopted, so that the endurance working time of the lithium battery is greatly prolonged.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view showing the connection of the plunger pump, the reservoir and the liquid outlet assembly according to the present invention;
FIG. 3 is an exploded schematic view of the pressure relief valve and vent valve of the present invention;
FIG. 4 is a schematic view of the installation of the pressure relief valve and the exhaust valve on the liquid outlet joint according to the present invention;
fig. 5 is a cross-sectional view of the present invention.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
As shown in the figure, the airless high-pressure spray gun comprises a shell 1, a motor 2, a plunger pump 3, a thimble assembly 4 and a liquid outlet assembly, wherein the motor 2, the plunger pump 3, the thimble assembly 4 and the liquid outlet assembly are arranged in the shell 1, the motor 2 is connected with a speed reducer 21 and used for driving the plunger pump 3 to work, a material sucking pipe 5 is fixedly connected to a material sucking port 31 of the plunger pump 3, the material sucking pipe 5 extends into a material pot 6, the liquid outlet assembly comprises a liquid outlet connector 7 and a nozzle 8 which are connected, a liquid outlet channel 71 is arranged in the liquid outlet connector 7, the thimble assembly 4 is hermetically connected with the liquid outlet connector 7, a thimble 41 in the thimble assembly 4 extends into the liquid outlet channel 71, the liquid outlet channel 71 is communicated with the nozzle 8, a liquid storage chamber 9 is arranged in the shell 1, an inlet of the liquid storage chamber 9 is communicated with a pressurization outlet 32 of the plunger pump 3, and an outlet of the liquid storage chamber 9 is communicated with the liquid outlet channel 71;
the liquid outlet joint 7 is respectively provided with a pressure release valve and a liquid return pipe 10, the pressure release valve is used for controlling the connection and disconnection between the liquid return pipe 10 and the liquid outlet channel 71, the pressure release valve comprises an end cover 11, a valve core 12 and a spring 13, the liquid outlet joint 7 is integrally provided with a hollow first connecting arm 72, the first connecting arm 72 is provided with a liquid return port 73, the liquid return port 73 is respectively communicated with the liquid outlet channel 71 and the liquid return pipe 10, the valve core 12 is arranged in the first connecting arm 72 and is in sealing sliding fit with the first connecting arm 72, the end cover 11 is fixed at the end part of the first connecting arm 72, the spring 13 is propped between the valve core 12 and the end cover 11, when the liquid pressure in the liquid outlet channel 71 is smaller than the elastic force of the spring 13, the valve core 12 blocks the liquid return port 73, so that the liquid return pipe 10 is not communicated with the liquid outlet channel 71, when the liquid pressure in the liquid outlet channel 71 is larger than the elastic force of the spring 13, the liquid return pipe 10 is communicated with the liquid outlet channel 71 through the liquid return port 73, the liquid return pipe 10 extends into the material pot 6;
the liquid outlet joint 7 is respectively provided with an exhaust valve and an exhaust pipe 14, the exhaust valve is used for controlling the connection and disconnection between the exhaust pipe 14 and the liquid outlet channel 71, the exhaust valve comprises a knob 15 and a plug 16, a hollow second connecting arm 74 is integrally arranged on the liquid outlet joint 7, an exhaust port 75 is arranged on the second connecting arm 74, the exhaust port 75 is respectively communicated with the exhaust pipe 14 and the liquid outlet channel 71, the knob 15 is in threaded connection with the end part of the second connecting arm 74, the plug 16 is arranged in the second connecting arm 74 and is in sealing fit with the second connecting arm 74, a connecting ball head 151 is arranged on the knob 15, one end of the plug 16 is provided with a connecting ball hole 161, the connecting ball head 151 is matched with the connecting ball hole 161, so that the plug 16 is connected with the knob 15, when the exhaust port 75 is blocked by the plug 16, the exhaust pipe 14 is not communicated with the liquid outlet channel 71, when the exhaust port 75 is opened by the plug 16, the exhaust pipe 14 is communicated with the liquid outlet channel 71 through the exhaust port 75, the exhaust pipe 14 extends into the material pot 6.
In the above embodiment, the working principle of the airless high-pressure spray gun is as follows: the motor 2 drives the plunger pump 3 to work, liquid such as paint in the material pot 6 is sucked into the plunger pump 3 through the material suction pipe 5, the liquid is pressurized by the plunger pump 3 and then is sent into the liquid storage chamber 9 through the pressurization outlet 32, the liquid storage chamber 9 is filled, the liquid storage chamber 9 is communicated with the liquid outlet channel 71, when the spray gun is just used, air is contained in the liquid storage chamber 9 and the liquid outlet channel 71, the knob 15 is screwed out, the exhaust pipe 14 is communicated with the liquid outlet channel 71, the air is discharged into the material pot 6 until liquid flows out of the exhaust pipe 14, then the knob 15 is screwed, the air outlet 75 is blocked by the plug 16, the exhaust pipe 14 is not communicated with the liquid outlet channel 71, then a trigger on the spray gun is pressed, the ejector pin 41 is driven to retreat, and the liquid in the liquid outlet channel 71 is sprayed out from the nozzle 8, so that spraying can be carried out; when the motor 2 is always operated and the spray gun is not spraying, when the liquid pressure in the liquid outlet channel 71 is greater than the elastic force of the spring 13 in the pressure release valve, the valve core 12 is pushed to move, so that the liquid return pipe 10 is communicated with the liquid outlet channel 71 through the liquid return port 73, and the liquid in the liquid outlet channel 71 flows into the material pot 6 through the liquid return pipe 10 to be released, so that the motor 2 is prevented from being burnt.
The scope of the present invention includes, but is not limited to, the above embodiments, and the scope of the present invention is defined by the appended claims, and any substitutions, modifications, and improvements that may occur to those skilled in the art are intended to fall within the scope of the present invention.
Claims (8)
1. The utility model provides an airless high pressure spray gun, is in including casing and setting motor, plunger pump, thimble assembly in the casing and play liquid subassembly, the motor be used for the drive the work of plunger pump, the plunger pump inhale the material mouth on fixedly connected with inhale the material pipe, inhale the material pipe and stretch into in the material kettle, its characterized in that: the shell is internally provided with a liquid storage chamber, an inlet of the liquid storage chamber is communicated with a pressurization outlet of the plunger pump, and an outlet of the liquid storage chamber is communicated with the liquid outlet assembly.
2. An airless high pressure spray gun as defined in claim 1 wherein: the liquid outlet assembly comprises a liquid outlet joint and a nozzle which are connected, a liquid outlet channel is arranged in the liquid outlet joint, the ejector pin assembly is hermetically connected with the liquid outlet joint, an ejector pin in the ejector pin assembly extends into the liquid outlet channel, the liquid outlet channel is communicated with the nozzle, and an outlet of the liquid storage chamber is communicated with the liquid outlet channel.
3. An airless high pressure spray gun as defined in claim 2 wherein: the liquid outlet joint is respectively provided with a pressure release valve and a liquid return pipe, the pressure release valve is used for controlling the on-off between the liquid return pipe and the liquid outlet channel, and the liquid return pipe extends into the material pot.
4. An airless high pressure spray gun as defined in claim 3 wherein: the pressure release valve comprises an end cover, a valve core and a spring, a hollow first connecting arm is integrally arranged on the liquid outlet joint, the first connecting arm is provided with a liquid return port which is respectively communicated with the liquid outlet channel and the liquid return pipe, the valve core is arranged in the first connecting arm and is in sealing sliding fit with the first connecting arm, the end cover is fixed at the end part of the first connecting arm, the spring is pressed between the valve core and the end cover, when the liquid pressure in the liquid outlet channel is less than the elastic force of the spring, the valve core blocks the liquid return port, so that the liquid return pipe is not communicated with the liquid outlet channel, when the liquid pressure in the liquid outlet channel is larger than the elastic force of the spring, the liquid return pipe is communicated with the liquid outlet channel through the liquid return port.
5. An airless high pressure spray gun as defined in claim 2 wherein: the liquid outlet joint is provided with an exhaust valve and an exhaust pipe respectively, the exhaust valve is used for controlling the on-off between the exhaust pipe and the liquid outlet channel, and the exhaust pipe extends into the material pot.
6. An airless high pressure spray gun as defined in claim 5 wherein: discharge valve include knob and jam, play liquid joint on an organic whole be provided with hollow second linking arm, the second linking arm on be provided with the gas vent, the gas vent respectively with the blast pipe the liquid outlet channel be linked together, the knob with the tip looks spiro union of second linking arm, the jam set up the second linking arm in and with the sealed cooperation of second linking arm, the jam with the knob be connected, work as the jam plug up the gas vent during, the blast pipe with liquid outlet channel not communicate, work as the jam let the gas vent during, the blast pipe with liquid outlet channel pass through the gas vent be linked together.
7. An airless high pressure spray gun as defined in claim 6 wherein: the knob is provided with a connecting ball head, one end of the plug is provided with a connecting ball hole, and the connecting ball head is matched with the connecting ball hole.
8. An airless high pressure spray gun as defined in claim 1 wherein: the motor drives the plunger pump through the speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122843465.1U CN216396752U (en) | 2021-11-17 | 2021-11-17 | Airless high-pressure spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122843465.1U CN216396752U (en) | 2021-11-17 | 2021-11-17 | Airless high-pressure spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216396752U true CN216396752U (en) | 2022-04-29 |
Family
ID=81303578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122843465.1U Active CN216396752U (en) | 2021-11-17 | 2021-11-17 | Airless high-pressure spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216396752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115814979A (en) * | 2021-09-16 | 2023-03-21 | 金华研创科技有限公司 | Negative pressure type spraying machine and method thereof |
-
2021
- 2021-11-17 CN CN202122843465.1U patent/CN216396752U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115814979A (en) * | 2021-09-16 | 2023-03-21 | 金华研创科技有限公司 | Negative pressure type spraying machine and method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |