CN213315921U - High-pressure water valve for dispenser - Google Patents
High-pressure water valve for dispenser Download PDFInfo
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- CN213315921U CN213315921U CN202021716903.7U CN202021716903U CN213315921U CN 213315921 U CN213315921 U CN 213315921U CN 202021716903 U CN202021716903 U CN 202021716903U CN 213315921 U CN213315921 U CN 213315921U
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Abstract
The utility model discloses a high-pressure water valve for a dispenser, which comprises a valve casing and a valve core; the valve cavity is arranged in the valve shell, the front end of the valve shell is provided with a valve port, the rear end of the valve shell is hermetically provided with a valve cover, and the valve cover is provided with an air inlet; the valve core gap is arranged in the valve cavity and comprises a valve core main body and a valve needle; a main water cavity is formed between the valve cavity and the valve needle, and a water inlet hole is formed in the valve shell; a larger end head is formed at the rear end of the valve core body, and an end head cavity is correspondingly formed at the rear end of the valve cavity; the depth of the end cavity is greater than that of the end, so that the valve core can move back and forth along the valve cavity; the end is provided with a first sealing ring, the valve core main body is provided with a second sealing ring, a first air cavity is enclosed in a gap between the valve cavity and the valve core by the first sealing ring and the second sealing ring, a second air cavity is formed among the end cavity, the end and the valve cover, and the valve shell is provided with an air inlet. The utility model discloses a high pressure water valve has solved the jam problem of needle and valve port department, can prolong the frequency of use and the operating duration of water valve.
Description
Technical Field
The utility model relates to a point gum machine technical field, concretely relates to a high-pressure water valve for point gum machine.
Background
The dispenser is also called a glue spreader, a glue dispenser, a glue filling machine and the like, and is specially used for controlling the fluid. And the fluid is dripped and coated on the surface of the product or an automatic machine inside the product, so that three-dimensional and four-dimensional path dispensing, accurate positioning, accurate glue control, no wire drawing, no glue leakage and no glue dripping can be realized. The glue dispenser is mainly used for accurately dispensing, injecting, coating and dripping glue, paint and other liquids in a product process to each accurate position of a product, and can be used for realizing dispensing, line drawing, circular or arc.
At present, a zero-opening unidirectional propulsion closing type water valve is generally adopted in the field of polyurethane dispensing, a valve needle of the water valve is opened by the pressure of a main water source, the opening sensitivity of the valve needle of the water valve is not high, and the conditions that the valve needle does not move and is not opened can occur; in addition, after the water valve works for a long time, the valve needle and the valve port are easy to have residual materials, and the valve needle can also be prevented from moving.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a high pressure water valve for point gum machine, this high pressure water valve has solved the jam problem of needle with valve port department, can prolong the frequency of use and the operating duration of water valve.
In order to solve the technical problem, the utility model provides a high-pressure water valve for a dispenser, which comprises a valve casing and a valve core; the valve housing has a valve cavity therein; the front end of the valve shell is provided with a valve port, the rear end of the valve shell is hermetically provided with a valve cover, and the valve cover is provided with an air inlet; the valve core gap is arranged in the valve cavity and comprises a valve core main body and a valve needle which is fixedly arranged at the front end of the valve core main body and matched with the valve port; a main water cavity is formed between the valve cavity and the valve needle, and a water inlet hole communicated with the main water cavity is formed in the valve shell;
a larger end head is formed at the rear end of the valve core body, and an end head cavity matched with the rear end of the valve cavity is correspondingly formed at the rear end of the valve cavity; the depth of the end head cavity is greater than that of the end head, so that the valve core can move back and forth along the valve cavity;
the end head is provided with a first sealing ring, the valve core main body is provided with a second sealing ring, a gap between the valve cavity and the valve core is enclosed by the first sealing ring and the second sealing ring to form a first air cavity, and a second air cavity is formed among the end head cavity, the end head and the valve cover; and the valve shell is provided with an air inlet communicated with the first air cavity.
Furthermore, the valve core main body is provided with an annular air-water dispersion channel between the second sealing ring and the valve needle, and the valve shell is provided with an air-water dispersion punching hole communicated with the air-water dispersion channel.
Furthermore, a sealing gasket is arranged at the front end of the valve needle in the valve cavity, and a third sealing ring is arranged between the air-water dispersion channel and the valve needle on the valve core main body.
Furthermore, seal grooves are formed in the end head and the valve core main body, and the first seal ring, the second seal ring and the third seal ring are arranged in the seal grooves.
Further, the second sealing ring and the third sealing ring both comprise a main sealing ring and an additional sealing ring.
Furthermore, the valve cover comprises a top cover and a head formed on the top cover in an integrated mode, threads are arranged on the outer peripheral surface of the head and screwed in the end cavity, and the head and the end cavity are sealed through a fourth sealing ring.
Further, the inlet opening is a plurality of with the scattered punching hole of air water, and evenly distributed is on the outer peripheral face of valve casing.
The utility model has the advantages that:
according to the high-pressure water valve, the air inlet is formed in the valve shell, air is supplied into the first air cavity through the air inlet, and the valve needle is pushed to retreat, so that the problem that the valve needle does not work due to blockage between the valve needle and the valve shell is solved, and the use frequency and the use time of the high-pressure water valve are prolonged; in addition, by arranging the air-water dispersing channel and the air-water dispersing hole, the water pressure in the main water cavity and the air pressure in the first air cavity are balanced, and complementary intervention is realized, so that the dispensing process of the equipment is effectively guaranteed.
Drawings
Fig. 1 is a schematic structural view of a high-pressure water valve according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the high pressure water valve of FIG. 1;
FIG. 3 is an exploded schematic view of the high pressure water valve of FIG. 1;
FIG. 4 is a schematic illustration of the installation of the high pressure water valve of FIG. 1;
the reference numbers in the figures illustrate: 100. a valve housing; 110. an air inlet; 120. punching with air water; 130. a water inlet hole; 140. a valve port; 150. a tip cavity; 160. a first air cavity;
200. a valve core; 210. a valve core main body; 211. air-water is scattered and flushed; 212. a second seal ring; 213. a third seal ring; 220. a valve needle; 230. a tip; 231. a first seal ring; 240. a sealing groove; 250. a gasket; 261. a main water cavity front sealing ring; 262. a main water cavity rear sealing ring;
300. a valve cover; 310. a top cover; 320. sealing the end; 330. an air inlet; 340. a fourth seal ring; 400. cleaning the main body; 410. the inlet of the main water source.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As described in the background art, in the prior art, a zero-opening one-way push closing type water valve is generally adopted in the field of polyurethane dispensing, a valve needle 220 of the water valve is opened by pressure of a main water source, the opening sensitivity of the valve needle 220 of the water valve is not high, and the situations that the valve needle 220 does not move and is not opened can occur; in addition, after the water valve works for a long time, the valve needle 220 and the valve port 140 are prone to have scraps, and the valve needle 220 is also prevented from moving.
In order to solve the technical problem, the present invention provides a novel high pressure water valve, which comprises a valve housing 100 and a valve core 200.
Referring to fig. 1-3, the valve housing 100 has a valve cavity therein, the valve housing 100 has a valve port 140 at a front end thereof, a valve cover 300 is sealingly mounted at a rear end thereof, and the valve cover 300 has an air inlet 330 communicating with the valve cavity. In this embodiment, the valve cavity is a cylindrical cavity, a tip cavity 150 with a larger diameter is formed at the rear end of the cylindrical cavity, and an internal thread is provided on the cavity wall of the tip cavity 150 near the opening at the rear end. The valve cap 300 includes a cap 310 and a sealing head 320 integrally formed on the cap 310, and the outer circumferential surface of the sealing head 320 is provided with external threads to be screwed into the end cavity 150. A fourth sealing ring 340 is arranged between the end socket 320 and the end cavity 150 to realize sealing connection.
The valve element 200 is disposed in the valve cavity with a clearance therebetween, and includes a valve element body 210 and a valve needle 220 fixed at the front end of the valve element body 210 and matching with the valve port 140. A main water cavity is formed between the valve cavity and the valve needle 220, and a water inlet hole 130 communicated with the main water cavity is formed in the valve housing 100 and used for feeding water into the main water cavity. In this embodiment, the water inlet holes 130 are uniformly distributed on the outer circumferential surface of the valve housing 100.
The rear end of the cartridge body is formed with a larger tip 230, the tip 230 being located in the tip cavity 150 and matching the tip cavity 150. The depth of the head chamber 150 is greater than the head 230 so that the valve cartridge 200 can move back and forth along the valve chamber and the head 320 and the lands between the head chamber 150 and the cylindrical chamber define the back and forth position of movement of the head 230.
The head 230 is provided with a first sealing ring 231, the valve core main body 210 is provided with a second sealing ring 212, a gap between the valve cavity and the valve core 200 is enclosed by the first sealing ring 231 and the second sealing ring 212 to form a first air cavity 160, and a second air cavity is formed among the head cavity 150, the head 230 and the end socket 320. The valve housing 100 is provided with an air inlet hole 110 communicating with the first air chamber 160.
When the cleaning operation is started, air is supplied into the first air chamber 160 through the air inlet hole 110, the tip 230 is pushed backward, so as to drive the valve needle 220 to withdraw from the valve port 140, and the high-pressure water in the main water chamber flows out from the valve port 140. After the cleaning is finished, air is supplied to the second air cavity through the air inlet 330 on the valve cover 300, and the tip 230 moves forwards under the force to drive the valve needle 220 to close. Therefore, even if the water valve works at high frequency for a long time, when the valve port 140 and the valve needle 220 are slightly blocked, the backward movement of the valve needle 220 is not influenced under the condition that the air supply of the air inlet hole 110 is ensured.
In this embodiment, a sealing gasket 240 is disposed at the front end of the valve needle 220 in the valve cavity, a third sealing ring 213 is further disposed on the valve core main body 210, a circular air-water dispersion channel 211 is disposed between the second sealing ring 212 and the third sealing ring 213 on the valve core main body 210, and an air-water dispersion punch hole 120 communicated with the air-water dispersion channel 211 is disposed on the valve housing 100. Therefore, when the pressure in the main water cavity is overloaded, the water pressure can extrude the third sealing ring 213 and enter the air-water dispersion flushing channel 211, and then the air-water dispersion flushing hole 120 is discharged out of the valve body; when the air supply pressure of the air inlet hole 110 is overloaded, the air pressure can extrude the second sealing ring 212 and enter the air-water dispersion channel 211, and then the air-water dispersion hole 120 is discharged out of the valve body. Therefore, by arranging the air-water dispersion flushing passage 211 and the air-water dispersion flushing hole 120, the water pressure in the main water cavity and the air pressure in the first air cavity 160 can be balanced, and complementary intervention is achieved.
In this embodiment, the end head 230 and the valve core main body 210 are both provided with a sealing groove 240, and the first sealing ring 231, the second sealing ring 212 and the third sealing ring 213 are all disposed in the sealing groove 240. Further, the second sealing ring 212 and the third sealing ring 213 each include a main sealing ring and an additional sealing ring.
The utility model discloses a high pressure water valve installs on washing main part 400 when using, has main water source entry 410 on washing main part 400 in order to let in the water under high pressure, and the water under high pressure further gets into the main water cavity through inlet opening 130 on the valve casing 100. Referring to fig. 4, in the present embodiment, the valve housing 100 is provided with threads, so that the high pressure water valve can be rotatably coupled to the cleaning main body 400. Further, a main water chamber front sealing ring 261 and a main water chamber rear sealing ring 262 for sealing the main water chamber are provided between the valve housing 100 and the cleaning main body 400.
In the high-pressure water valve of the embodiment, the air inlet hole 110 is formed in the valve housing 100, air is supplied into the first air cavity 160 through the air inlet hole 110, and the valve needle 220 is pushed to retreat, so that the problem that the valve needle 220 does not work due to blockage between the valve needle 220 and the valve housing 100 is solved, and the use frequency and the use duration of the high-pressure water valve are prolonged; in addition, by arranging the air-water dispersion flushing channel 211 and the air-water dispersion flushing hole 120, the water pressure in the main water cavity and the air pressure in the first air cavity 160 are balanced, and complementary intervention is achieved, so that the dispensing process of the equipment is effectively guaranteed.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (7)
1. A high-pressure water valve for a dispenser is characterized by comprising a valve shell and a valve core; the valve cavity is arranged in the valve shell, the front end of the valve shell is provided with a valve port, the rear end of the valve shell is hermetically provided with a valve cover, and the valve cover is provided with an air inlet; the valve core gap is arranged in the valve cavity and comprises a valve core main body and a valve needle which is fixedly arranged at the front end of the valve core main body and matched with the valve port; a main water cavity is formed between the valve cavity and the valve needle, and a water inlet hole communicated with the main water cavity is formed in the valve shell;
a larger end head is formed at the rear end of the valve core body, and an end head cavity matched with the rear end of the valve cavity is correspondingly formed at the rear end of the valve cavity; the depth of the end head cavity is greater than that of the end head, so that the valve core can move back and forth along the valve cavity;
the end head is provided with a first sealing ring, the valve core main body is provided with a second sealing ring, a gap between the valve cavity and the valve core is enclosed by the first sealing ring and the second sealing ring to form a first air cavity, and a second air cavity is formed among the end head cavity, the end head and the valve cover; and the valve shell is provided with an air inlet communicated with the first air cavity.
2. The high-pressure water valve for the dispenser according to claim 1, wherein the valve core body is provided with an annular air-water dispersion channel between the second sealing ring and the valve needle, and the valve casing is provided with an air-water dispersion punching hole communicated with the air-water dispersion channel.
3. The high pressure water valve for the dispenser according to claim 2, wherein a sealing gasket is disposed at the front end of the valve needle in the valve chamber, and a third sealing ring is disposed between the air-water dispersion channel and the valve needle on the valve core main body.
4. The high pressure water valve for a dispenser as claimed in claim 3, wherein the end and the valve core body are provided with sealing grooves, and the first, second and third sealing rings are disposed in the sealing grooves.
5. The high pressure water valve for a dispenser of claim 4, wherein the second and third seals each comprise a primary seal and an additional seal.
6. The high-pressure water valve for the dispenser as claimed in claim 1, wherein the valve cover comprises a top cover and a head integrally formed on the top cover, the outer circumferential surface of the head is provided with threads to be screwed in the head cavity, and the head cavity are sealed by a fourth sealing ring.
7. The high pressure water valve for the dispenser according to claim 2, wherein the water inlet holes and the air-water dispersion punched holes are a plurality of holes and are uniformly distributed on the outer circumferential surface of the valve housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021716903.7U CN213315921U (en) | 2020-08-17 | 2020-08-17 | High-pressure water valve for dispenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021716903.7U CN213315921U (en) | 2020-08-17 | 2020-08-17 | High-pressure water valve for dispenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213315921U true CN213315921U (en) | 2021-06-01 |
Family
ID=76097125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021716903.7U Active CN213315921U (en) | 2020-08-17 | 2020-08-17 | High-pressure water valve for dispenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213315921U (en) |
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2020
- 2020-08-17 CN CN202021716903.7U patent/CN213315921U/en active Active
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