CN110593533B - Feeding assembly and painting device - Google Patents
Feeding assembly and painting device Download PDFInfo
- Publication number
- CN110593533B CN110593533B CN201810875768.1A CN201810875768A CN110593533B CN 110593533 B CN110593533 B CN 110593533B CN 201810875768 A CN201810875768 A CN 201810875768A CN 110593533 B CN110593533 B CN 110593533B
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- air
- storage cavity
- liquid storage
- box body
- channel
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
- E04F21/08—Mechanical implements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Devices For Dispensing Beverages (AREA)
Abstract
The invention relates to the technical field of painting equipment, and provides a feeding assembly which comprises a box body with a liquid storage cavity, a discharge channel communicated with the liquid storage cavity and an air supply mechanism, wherein the air supply mechanism comprises an air flow channel communicated with the liquid storage cavity and an air source communicated with the air flow channel and used for providing air with preset air pressure; the box body is respectively provided with a discharge hole and a pressure relief hole; one end of the discharge channel is provided with a feed inlet which is used for extending into the liquid storage cavity below the liquid level, and the other end of the discharge channel is communicated with the outside of the box body through a discharge outlet; the box body is provided with a switch device for opening or closing the pressure relief hole. According to the feeding assembly provided by the invention, when the switch device opens the pressure relief hole, gas or liquid in the liquid storage cavity is released to the outside of the box body through the pressure relief hole, so that the air pressure in the liquid storage cavity is finally the same as the air pressure outside the box body, and the liquid in the liquid storage cavity is not easy to leak out due to the fact that the air pressure difference between the inside of the liquid storage cavity and the outside of the box body is eliminated.
Description
Technical Field
The invention belongs to the technical field of painting equipment, and particularly relates to a feeding assembly and a painting device.
Background
The brushing equipment is widely used in modern production and life, particularly, a wall body needs to be brushed when a room is decorated, the existing brush adopts a common roller brush, a box body with a liquid storage cavity is arranged beside the roller brush, coating liquid is filled in the liquid storage cavity, a discharging channel is arranged in the box body, and after gas is injected into the liquid storage cavity by a gas supply mechanism, the coating liquid in the liquid storage cavity is extruded out of the box body through the discharging channel and coated on the wall body. When the air supply mechanism stops injecting air, the discharge channel stops discharging, but the air pressure in the box body is not reduced, and when the painting equipment is used, the situation that the coating liquid in the box body leaks from the discharge channel easily occurs.
Disclosure of Invention
The invention aims to provide a feeding assembly to solve the technical problems that in the prior art, when a gas supply mechanism stops injecting gas, the air pressure in a box body is not reduced, and coating liquid in the box body is easy to drip out of a discharge channel in the use process of brushing equipment.
In order to achieve the purpose, the invention adopts the technical scheme that: providing a feeding assembly, which comprises a box body with a liquid storage cavity, a discharge channel communicated with the liquid storage cavity and a gas supply mechanism used for injecting gas into the liquid storage cavity, wherein the gas supply mechanism comprises a gas flow channel communicated with the liquid storage cavity and a gas source communicated with the gas flow channel and used for injecting gas into the gas flow channel; the box body is respectively provided with a discharge hole and a pressure relief hole; one end of the discharging channel is provided with a feeding port which is used for extending into the liquid storage cavity below the liquid level, and the other end of the discharging channel is communicated with the outside of the box body through the discharging port; and the box body is provided with a switch device for opening or closing the pressure relief hole.
Further, the discharging channel is formed by enclosing a hose, one end of the hose is communicated with the discharging port, the other end of the hose is a free end, the free end can be abutted to any position in the liquid storage cavity, and the feeding port is arranged on the free end.
Further, an air escape valve is arranged on the air flow channel outside the box body.
Further, the air source is a pneumatic pump for inflating/evacuating the air flow channel.
Further, the switch device comprises an air bag arranged in the liquid storage cavity, the air bag is communicated with the airflow channel, and the air bag expands and blocks the pressure relief hole after being inflated with air; and a first one-way valve for allowing the air in the airflow channel to flow out of the liquid storage cavity is arranged in the airflow channel.
Furthermore, a supporting plate is arranged on the inner wall of the box body, and the air bag is located between the supporting plate and the pressure relief hole.
Further, the switch device comprises a sliding channel and a piston arranged in the sliding channel, one end of the sliding channel is communicated with the pressure relief hole, and the other end of the sliding channel is communicated with the airflow channel; a vent hole communicated with the liquid storage cavity is formed in the inner wall of the sliding channel, a spring is arranged in the sliding channel between the piston and the airflow channel, one end of the spring is connected to the piston, and the other end of the spring is connected to the inner wall of the sliding channel or the airflow channel; and a second one-way valve for allowing the air in the airflow channel to flow out of the liquid storage cavity is arranged in the airflow channel.
Further, the switch device is an electromagnetic valve arranged in the pressure relief hole.
Further, the switch device is a mechanical air valve arranged in the pressure relief hole.
The invention also provides a brushing device which comprises the feeding assembly.
The feeding assembly provided by the invention has the beneficial effects that: compared with the prior art, according to the feeding assembly provided by the invention, when the switch device closes the pressure relief hole, the gas source generates gas and then injects the gas into the gas flow channel, the gas in the gas flow channel is injected into the liquid storage cavity again, along with the rise of the gas pressure in the liquid storage cavity, the liquid in the liquid storage cavity enters the discharging channel through the feeding port below the liquid level, and the liquid in the discharging channel is discharged to the outside of the box body through the discharging port; when the pressure relief hole is opened by the switch device, gas or liquid in the liquid storage cavity is released to the outside of the box body through the pressure relief hole, and finally the air pressure in the liquid storage cavity is the same as the air pressure outside the box body; namely, the liquid in the liquid storage cavity is not easy to leak out when the feeding assembly is used.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic cross-sectional view of a supply assembly according to an embodiment of the present invention during inflation of an airbag and sealing of a pressure relief vent;
FIG. 2 is a schematic cross-sectional view of a supply assembly according to an embodiment of the present invention when an airbag is deflated and the pressure relief vent is unblocked;
FIG. 3 is a schematic cross-sectional view of a supply assembly according to an embodiment of the present invention, illustrating a piston sealing a vent hole;
FIG. 4 is an enlarged view of the point A in FIG. 3;
fig. 5 is a schematic cross-sectional view of a supply assembly according to an embodiment of the present invention when a piston unblocks a vent hole.
Wherein, in the figures, the respective reference numerals:
10-a box body; 11-a liquid storage cavity; 12-a discharge hole; 13-pressure relief holes; 2-a discharge channel; 21-a feeding port; 22-free end; 3-an air supply mechanism; 31-an airflow channel; 32-a gas release valve; 33-a gas source; 4-a switching device; 41-air bag; 42-a first one-way valve; 43-a slide channel; 431-vent hole; 44-a piston; 45-spring; 46-a second one-way valve; 51-a counterweight; 52-liquid level; 53-support plate.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 and 2 together, the feeding assembly of the present invention will now be described. The feeding assembly comprises a box body 10 with a liquid storage cavity 11, a discharging channel 2 communicated with the liquid storage cavity 11 and a gas supply mechanism 3 used for injecting gas into the liquid storage cavity 11, wherein the gas supply mechanism 3 comprises a gas flow channel 31 communicated with the liquid storage cavity 11 and a gas source 33 communicated with the gas flow channel 31 and used for injecting gas into the gas flow channel 31; a discharge port 12 and a pressure relief hole 13 are respectively arranged on the box body 10; one end of the discharge channel 2 is provided with a feed inlet 21 which is used for extending into the liquid storage cavity 11 below the liquid level 52, and the other end of the discharge channel 2 is communicated with the outside of the box body 10 through a discharge outlet 12; the case 10 is provided with a switching device 4 for opening or closing the pressure relief hole 13.
Thus, when the switch device 4 closes the pressure relief hole 13, the gas source 33 generates gas and injects the gas into the gas flow channel 31, the gas in the gas flow channel 31 is injected into the liquid storage cavity 11 again, along with the rise of the gas pressure in the liquid storage cavity 11, the liquid in the liquid storage cavity 11 enters the discharge channel 2 through the feeding port 21 positioned below the liquid level 52, and the liquid in the discharge channel 2 is discharged to the outside of the box body 10 through the discharge port 12; when the switch device 4 opens the pressure relief hole 13, gas or liquid in the liquid storage cavity 11 is released to the outside of the box body 10 through the pressure relief hole 13, and finally the air pressure in the liquid storage cavity 11 is the same as the air pressure outside the box body 10, and the air pressure difference between the inside of the liquid storage cavity 11 and the outside of the box body 10 is eliminated, so that the liquid in the liquid storage cavity 11 is prevented from being pressed out of the box body 10 through the discharge channel 2 by the air pressure in the liquid storage cavity 11 in the use process of the feeding assembly; in the use process of the feeding assembly, liquid in the liquid storage cavity 11 is not easy to leak out from the discharge hole 12 after passing through the discharge channel 2.
Alternatively, in one embodiment, the discharge hole 12 and the pressure relief hole 13 are opened on the top surface of the case 1, respectively.
Further, referring to fig. 1 and fig. 2, as a specific embodiment of the feeding assembly provided by the present invention, the discharging channel 2 is formed by a flexible pipe, one end of the flexible pipe is communicated with the discharging port 12, the other end of the flexible pipe is a free end 22, the free end 22 can be abutted to any position in the liquid storage cavity 11, and the feeding port 21 is disposed on the free end 22. Therefore, in the using process of the feeding assembly, the hose can be freely bent in the liquid storage cavity 11, and the position of the feeding port 21 can be adjusted along with the adjustment of the position of the free end 22 along with the fact that the free end 22 is abutted to different positions of the liquid storage cavity 11; when liquid is placed in the liquid storage cavity 11, the liquid is always located at the lower end of the liquid storage cavity 11, and the free end 22 can be always placed at the lower end of the liquid storage cavity 11 under the action of gravity of the hose, so that the feeding port 21 is immersed below the liquid level 52 of the liquid in the liquid storage cavity 11.
Optionally, in one embodiment, a weight 51 is disposed on the free end 22, such that the free end 22 can move against the bottom wall of the reservoir 11 under the force of gravity of the weight 51.
Further, referring to fig. 1 and 2, as an embodiment of the supply assembly of the present invention, an air release valve 32 is disposed on an air flow passage 31 outside the tank 10. In this manner, the pressure in the airflow passage 31 can be easily reduced by the relief valve 32.
Further, referring to fig. 1 and 2, as an embodiment of the feeding assembly of the present invention, the air source 33 is a pneumatic pump for inflating/deflating the air flow channel 31. Therefore, the pneumatic pump can conveniently and quickly inflate or deflate the airflow channel 31; the air flow channel 31 can be inflated by opening the air pressure pump in the inflation state, and the air flow channel 31 can be exhausted by opening the air pressure pump in the air exhaust state.
Further, referring to fig. 1 and 2, as an embodiment of the feeding assembly provided by the present invention, the switch device 4 includes an air bag 41 disposed in the liquid storage chamber 11, the air bag 41 is communicated with the gas flow channel 31, and the air bag 41 expands and blocks the pressure release hole 13 after being inflated with gas; the air flow channel 31 is provided with a first one-way valve 42 for the air in the air flow channel 31 to flow out to the liquid storage cavity 11. In this way, the first check valve 42 can prevent the liquid/gas in the reservoir chamber 11 from flowing backward into the gas flow channel 31; when the gas source 33 injects gas into the gas flow channel 31, the gas bag 41 expands and blocks the pressure release hole 13, so that the gas in the liquid storage cavity 11 can be prevented from being discharged from the pressure release hole 13, and after the pressure release hole 13 is blocked by the gas bag 41, the gas in the gas flow channel 31 continues to inject gas into the liquid storage cavity 11 through the first one-way valve 42 and increase the gas pressure in the liquid storage cavity 11 until the liquid in the liquid storage cavity 11 is output out of the box body 10 through the discharge channel 2; when the air pressure in the air flow passage 31 decreases, the air bag 41 will deflate more and more as the air pressure decreases, and the air bag 41 will be out of contact with the pressure relief hole 13 during the deflation process so that the air or liquid in the reservoir 11 can be discharged out of the tank 10 through the pressure relief hole 13.
Optionally, in an embodiment, a first one-way valve 42 is disposed in the air flow channel 31 downstream of the air bag 41 for allowing the air in the air flow channel 31 to flow out to the liquid storage chamber 11.
Further, referring to fig. 1 and 2, as an embodiment of the feeding assembly of the present invention, a supporting plate 53 is disposed on an inner wall of the box 10, and the air bag 41 is located between the supporting plate 53 and the pressure releasing hole 13. Thus, when the airbag 41 is inflated, one end of the airbag 41 can abut against the inner wall of the box 10 and seal the pressure relief hole 13, and the other end of the airbag 41 can abut against the airbag 41 on the support plate 53 to provide support, so that the situation that the airbag 41 cannot block the pressure relief hole 13 due to the fact that the airbag 41 moves in a direction away from the pressure relief hole 13 after being inflated is avoided.
Further, referring to fig. 3 to 5, as an embodiment of the feeding assembly provided by the present invention, the switch device 4 includes a sliding channel 43 and a piston 44 disposed in the sliding channel 43, one end of the sliding channel 43 is communicated with the pressure relief hole 13, and the other end of the sliding channel 43 is communicated with the airflow channel 31; a vent hole 431 communicated with the liquid storage cavity 11 is formed in the inner wall of the sliding channel 43, a spring 45 is arranged in the sliding channel 43 between the piston 44 and the airflow channel 31, one end of the spring 45 is connected to the piston 44, and the other end of the spring 45 is connected to the inner wall of the sliding channel 43 or the airflow channel 31; the air flow channel 31 is provided with a second one-way valve 46 for the air in the air flow channel 31 to flow out to the liquid storage cavity 11. Thus, when the air flow channel 31 is filled with air, the piston 44 slides along the sliding channel 43 and blocks the vent 431, and at the moment, the air in the air flow channel 31 enters the liquid storage cavity 11 through the second one-way valve 46; when the air pressure in the air flow channel 31 is reduced, the spring 45 pulls the piston 44 to move along the sliding channel 43 and unblocks the vent hole 431, and the air in the liquid storage chamber 11 is discharged out of the box body 10 through the vent hole 431 and the pressure relief hole 13 in sequence.
Further, referring to fig. 1 and 2, as an embodiment of the feeding assembly provided by the present invention, the switch device 4 is a solenoid valve disposed in the pressure relief hole 13. Thus, the electromagnetic valve can very conveniently control the opening or closing state of the pressure relief hole 13; the starting switch of the electromagnetic valve can be arranged at a position far away from the pressure relief hole 13, and the state of the pressure relief hole 13 can be controlled only by pressing the starting switch by a user, so that the electromagnetic valve is very convenient.
Further, referring to fig. 1 and 2, as an embodiment of the feeding assembly provided by the present invention, the switch device 4 is a mechanical air valve disposed in the pressure relief hole 13. Therefore, when the user opens the air valve, the pressure relief hole 13 is opened, and when the user closes the air valve, the pressure relief hole 13 is closed; the mechanical air valve has low cost and convenient opening and closing operation.
Referring to fig. 1 and 2, the present invention further provides a painting apparatus including a feeding assembly. Thus, by adopting the brushing device, when the switch device 4 closes the pressure relief hole 13, the gas source 33 generates gas and then injects the gas into the gas flow channel 31, the gas in the gas flow channel 31 is injected into the liquid storage cavity 11 again, along with the rise of the gas pressure in the liquid storage cavity 11, the liquid in the liquid storage cavity 11 enters the discharge channel 2 through the feeding port 21 positioned below the liquid level 52, and the liquid in the discharge channel 2 is discharged to the outside of the box body 10 through the discharge port 12; when the switch device 4 opens the pressure relief hole 13, the gas in the liquid storage cavity 11 is released to the outside of the box body 10 through the pressure relief hole 13, finally, the air pressure in the liquid storage cavity 11 is the same as the air pressure outside the box body 10, and the air pressure difference between the inside of the liquid storage cavity 11 and the outside of the box body 10 is eliminated, so that the liquid in the liquid storage cavity 11 is prevented from being pressed out of the box body 10 through the discharging channel 2 by the air pressure in the liquid storage cavity 11 in the use process of the feeding assembly; the feeding assembly is in the use, and the liquid in stock solution chamber 11 is difficult to leak from discharge gate 12 behind discharge channel 2 promptly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The feed subassembly, including the box that has the stock solution chamber, with the discharging channel of stock solution chamber intercommunication and be used for to stock solution intracavity pours into gaseous air feed mechanism, its characterized in that: the gas supply mechanism comprises a gas flow channel communicated with the liquid storage cavity and a gas source communicated with the gas flow channel and used for injecting gas into the gas flow channel; the box body is respectively provided with a discharge hole and a pressure relief hole; one end of the discharging channel is provided with a feeding port which is used for extending into the liquid storage cavity below the liquid level, and the other end of the discharging channel is communicated with the outside of the box body through the discharging port; the box body is provided with a switch device for opening or closing the pressure relief hole;
the switch device comprises an air bag arranged in the liquid storage cavity, the air bag is communicated with the airflow channel, and the air bag expands after being filled with air and blocks the pressure relief hole; and a first one-way valve for allowing the air in the airflow channel to flow out of the liquid storage cavity is arranged in the airflow channel.
2. The feed assembly of claim 1, wherein: the discharging channel is formed by enclosing a hose, one end of the hose is communicated with the discharging hole, the other end of the hose is a free end, the free end can be abutted to any position in the liquid storage cavity, and the feeding hole is formed in the free end.
3. The feed assembly of claim 1, wherein: and an air escape valve is arranged on the air flow channel outside the box body.
4. The feed assembly of claim 1, wherein: the air source is a pneumatic pump for inflating/exhausting air into the air flow channel.
5. The feed assembly of any of claims 1-4, wherein: the inner wall of the box body is provided with a supporting plate, and the air bag is located between the supporting plate and the pressure relief hole.
6. A painting device is characterized in that: comprising a feed assembly according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810875768.1A CN110593533B (en) | 2018-08-03 | 2018-08-03 | Feeding assembly and painting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810875768.1A CN110593533B (en) | 2018-08-03 | 2018-08-03 | Feeding assembly and painting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110593533A CN110593533A (en) | 2019-12-20 |
| CN110593533B true CN110593533B (en) | 2021-01-08 |
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ID=68849626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810875768.1A Active CN110593533B (en) | 2018-08-03 | 2018-08-03 | Feeding assembly and painting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110593533B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6308899B1 (en) * | 2000-07-20 | 2001-10-30 | Joe Crofford | Multi-mode fluid injection system |
| CN204134778U (en) * | 2014-09-26 | 2015-02-04 | 深圳市恒湖科技有限公司 | Fluent material pressure feed device |
| TWI587927B (en) * | 2015-03-20 | 2017-06-21 | 漢民科技股份有限公司 | Viscous liquid supplying equipment |
| CN105756599A (en) * | 2016-04-29 | 2016-07-13 | 史买林 | Coal mine two-end gas plug and middle water seal layer penetrating drill hole sealing device and method |
| CN205926104U (en) * | 2016-08-18 | 2017-02-08 | 年双红 | High -pressure gas pressure sprayer |
| EP3296075B1 (en) * | 2016-09-20 | 2021-11-10 | Wagner International Ag | Feeding apparatus for feeding a viscous material from a container and method for operating the feeding apparatus |
| CN107214012A (en) * | 2017-06-13 | 2017-09-29 | 丽水市天顺导轨制造有限公司 | A kind of portable spray-painting plant of auto parts machinery |
| CN107899892A (en) * | 2017-11-17 | 2018-04-13 | 梁涛 | Supply assembly and application device |
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2018
- 2018-08-03 CN CN201810875768.1A patent/CN110593533B/en active Active
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| CN110593533A (en) | 2019-12-20 |
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