CN212107016U - Hot water control constant valve - Google Patents
Hot water control constant valve Download PDFInfo
- Publication number
- CN212107016U CN212107016U CN202022259442.1U CN202022259442U CN212107016U CN 212107016 U CN212107016 U CN 212107016U CN 202022259442 U CN202022259442 U CN 202022259442U CN 212107016 U CN212107016 U CN 212107016U
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- China
- Prior art keywords
- valve
- diaphragm
- iron core
- spring
- pilot
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a hot water control constant valve, which comprises a valve body, a valve cover and a pilot head, wherein the valve body is provided with a first working port, a second working port and a valve port, and a diaphragm is pressed between the valve body and the valve cover; a first ring groove is formed in the valve body, a first sealing ring is arranged in the first ring groove, a second ring groove is formed in the valve cover, and a second sealing ring is arranged in the second ring groove; the diaphragm, the valve cover and the pilot head are matched together to form a pilot cavity, a first spring for driving the diaphragm to close a valve port is arranged in the pilot cavity, a pilot hole for communicating the pilot cavity with the first working port is formed in the diaphragm, a valve core is fixed on the diaphragm, and a first channel is formed in the valve core; the guide head comprises a sleeve, a fixed iron core and a movable iron core, a coil is sleeved on the outer side of the sleeve, a second spring is arranged between the fixed iron core and the movable iron core in a supporting mode, and the second spring orders the movable iron core to seal a first channel. The utility model discloses simple structure compactness, sealing performance are good and long service life's advantage has been possessed.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to hot water control constant valve.
Background
The electromagnetic valve is an automatic basic element for controlling fluid, belongs to an actuator, is not limited to hydraulic pressure and pneumatic pressure, and is mainly used for adjusting the direction, flow rate, speed and other parameters of a medium in an industrial control system. The hot water control valve is a control type electromagnetic valve which takes hot water with higher temperature as a medium, and because the hot water control valve is in a higher-temperature environment for a long time, an internal sealing element and a diaphragm are extremely easy to age, so that the diaphragm frequently falls off and even melts, the sealing property is poor, and the service life is greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure compactness, sealing performance are good and long service life's invariable valve of hot water control to prior art's defect and not enough.
The utility model provides a technical scheme that its technical problem adopted is: a hot water control constant valve comprises a valve body, a valve cover and a pilot head, wherein a first working port and a second working port are formed in the valve body, the first working port is communicated with the second working port through a valve port, and a diaphragm is arranged between the valve body and the valve cover in a pressing mode;
the valve body is provided with a first ring groove, a first sealing ring in sealing fit with the diaphragm is arranged in the first ring groove, the valve cover is provided with a second ring groove, and a second sealing ring in sealing fit with the diaphragm is arranged in the second ring groove;
the diaphragm, the valve cover and the pilot head are matched together to form a pilot cavity, a first spring for driving the diaphragm to close the valve port is arranged in the pilot cavity, a pilot hole for communicating the pilot cavity with the first working port is formed in the diaphragm, a valve core is fixed on the diaphragm, and a first channel for communicating the pilot cavity with the valve port is formed in the valve core;
the guide head sets up in the intraductal movable core of cover including setting up the sleeve pipe on the valve gap, being fixed in the fixed iron core on sleeve pipe top and activity, sleeve pipe outside cover is equipped with the coil, fixed iron core with it is equipped with the second spring to support between the movable core, the second spring orders about movable core seals first passageway.
Furthermore, the first sealing ring and the second sealing ring are both made of fluororubber; the temperature resistance is improved, the melting is avoided, the sealing performance is improved, and the service life is prolonged.
Furthermore, the top end of the movable iron core is provided with a mounting hole, the second spring is accommodated in the mounting hole, and the other end of the second spring is abutted and matched with the fixed iron core; a sealing gasket in sealing fit with the first channel is embedded at the bottom end of the movable iron core; the movable iron core is provided with a second channel for communicating the guide cavity with the mounting hole; the second spring is stably and firmly installed.
Further, the bottom end of the valve core penetrates through the diaphragm and is fixed on the diaphragm through a pressing plate; the installation is convenient and the connection is firm.
Furthermore, a support is arranged in the pilot cavity, the support is arranged between the valve core and the diaphragm in a pressing mode, a convex edge extends from the upper end of the support in the radial direction, one end of the first spring abuts against the convex edge, and an annular pressing sheet is arranged between the other end of the first spring and the diaphragm in a pressing mode; the stress is balanced, and the sealing performance of the diaphragm and the first channel is improved.
Furthermore, an O-shaped ring is arranged at the joint of the valve cover and the sleeve; the sealing performance is improved.
The utility model has the advantages that: the valve body is provided with the first annular groove, the first annular groove is internally provided with the first sealing ring which is in sealing fit with the diaphragm, the valve cover is provided with the second annular groove, and the second annular groove is internally provided with the second sealing ring which is in sealing fit with the diaphragm, so that the diaphragm is firmly pressed between the valve body and the valve cover, the sealing property is improved, the problem that the diaphragm falls off is solved, and the service life is prolonged; generally, the utility model discloses the advantage that has possessed simple structure compactness, sealing performance is good and long service life.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view at a in fig. 1.
Shown in the figure: 1-a valve body; 1.1-a first working port; 1.2-a second working port; 1.3-valve port; 1.4-a first ring groove; 2-valve cover; 2.1-a second ring groove; 3-leading head; 31-a sleeve; 32-a fixed iron core; 33-a movable iron core; 33.1-mounting holes; 33.2-a second channel; 34-a coil; 35-a second spring; 4-a membrane; 4.1-pilot hole; 5-a first sealing ring; 6-a second sealing ring; 7-a pilot cavity; 8-a first spring; 9-a valve core; 9.1 — a first channel; 10-a seal gasket; 11-a platen; 12-a scaffold; 12.1-convex edge; 12.2-third channel; 13-annular tabletting; 14-O-ring.
Detailed Description
For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting characteristic description is now performed by combining the drawings of the present invention:
as shown in fig. 1 and 2, the hot water control constant valve comprises a valve body 1, a valve cover 2 and a pilot head 3, wherein the valve body 1 is provided with a first working port 1.1 and a second working port 1.2, the first working port 1.1 is communicated with the second working port 1.2 through a valve port 1.3, and a diaphragm 4 is arranged between the valve body 1 and the valve cover 2 in a pressing manner;
a first ring groove 1.4 is formed in the valve body 1, a first sealing ring 5 in sealing fit with the diaphragm 4 is arranged in the first ring groove 1.4, a second ring groove 2.1 is formed in the valve cover 2, and a second sealing ring 6 in sealing fit with the diaphragm 4 is arranged in the second ring groove 2.1;
the diaphragm 4, the valve cover 2 and the pilot head 3 are matched together to form a pilot cavity 7, a first spring 8 for driving the diaphragm 4 to close the valve port 1.3 is arranged in the pilot cavity 7, a pilot hole 4.1 for communicating the pilot cavity 7 with the first working port 1.1 is formed in the diaphragm 4, a valve core 9 is fixed on the diaphragm 4, and a first channel 9.1 for communicating the pilot cavity 7 with the valve port 1.3 is formed in the valve core 9;
the pilot head 3 comprises a sleeve 31 arranged on the valve cover 2, a fixed iron core 32 fixed at the top end of the sleeve 31 and a movable iron core 33 movably arranged in the sleeve 31, a coil 34 is sleeved outside the sleeve 31, a second spring 35 is arranged between the fixed iron core 32 and the movable iron core 33 in a supporting manner, and the second spring 35 drives the movable iron core 33 to seal the first channel 9.1.
The first sealing ring 5 and the second sealing ring 6 are made of fluororubber.
The top end of the movable iron core 33 is provided with a mounting hole 33.1, the second spring 35 is accommodated in the mounting hole 33.1, and the other end of the second spring 35 is abutted and matched with the fixed iron core 32; the bottom end of the movable iron core 33 is embedded with a sealing gasket 10 which is in sealing fit with the first channel 9.1; the movable iron core 33 is provided with a second channel 33.2 communicating the pilot cavity 7 and the mounting hole 33.1.
The bottom end of the valve core 9 penetrates through the diaphragm 4 and is fixed on the diaphragm 4 through the pressing plate 11; preferably, the pressing plate 11 may be one of a circlip or a nut for a shaft or a lock steel ring.
A support 12 is arranged in the pilot cavity 7, the support 12 is arranged between the valve core 9 and the diaphragm 4 in a pressing mode, a convex edge 12.1 extends from the upper end of the support 12 along the radial direction, one end of the first spring 8 is abutted against the convex edge 12.1, and an annular pressing sheet 13 is arranged between the other end of the first spring 8 and the diaphragm 4 in a pressing mode; preferably, the cross section of the bracket 12 is U-shaped, so that the stress of the diaphragm 4 is more balanced, and the valve port 1.3 is firmly closed; a third channel 12.2 is arranged on the bracket 12, so that the guide cavity 7 can be filled with hot water conveniently; specifically, the first spring 8 is a pagoda-shaped spring, so that the installation is convenient and the stress is balanced.
An O-shaped ring 14 is arranged at the joint of the valve cover 2 and the sleeve 31 to ensure the sealing property between the valve cover 2 and the sleeve 31.
The utility model discloses a concrete theory of operation as follows: under normal conditions, the second working port 1.2 is used as a liquid inlet, under the elastic force of the first spring 8 and the second spring 35, the valve port 1.3 and the first channel 9.1 are both kept in a closed state, and hot water at the second working port 1.2 flows into the pilot chamber 7 through the pilot hole 4.1, so that the diaphragm 4 is tightly attached to the valve port 1.3 and is closed, when the coil 34 is electrified, the movable iron core 33 is attracted by the fixed iron core 32 and overcomes the elastic force of the second spring 35, so that the first channel 9.1 is opened, hot water in the pilot chamber 7 flows into the first channel 1.3 from the first channel 9.1, the pressure of the hot water is reduced, so that the valve port 1.3 is gradually opened, and the hot water at the second working port 1.2 flows into the first working port 1.1 through the first channel 1.3.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (6)
1. The hot water control constant valve is characterized by comprising a valve body (1), a valve cover (2) and a pilot head (3), wherein the valve body (1) is provided with a first working port (1.1) and a second working port (1.2), the first working port (1.1) is communicated with the second working port (1.2) through a valve port (1.3), and a diaphragm (4) is arranged between the valve body (1) and the valve cover (2) in a pressing manner;
a first ring groove (1.4) is formed in the valve body (1), a first sealing ring (5) which is in sealing fit with the diaphragm (4) is arranged in the first ring groove (1.4), a second ring groove (2.1) is formed in the valve cover (2), and a second sealing ring (6) which is in sealing fit with the diaphragm (4) is arranged in the second ring groove (2.1);
the diaphragm (4), the valve cover (2) and the pilot head (3) are matched together to form a pilot cavity (7), a first spring (8) for driving the diaphragm (4) to close the valve port (1.3) is arranged in the pilot cavity (7), a pilot hole (4.1) for communicating the pilot cavity (7) with the first working port (1.1) is formed in the diaphragm (4), a valve core (9) is fixed on the diaphragm (4), and a first channel (9.1) for communicating the pilot cavity (7) with the valve port (1.3) is formed in the valve core (9);
leading head (3) including set up sleeve pipe (31) on valve gap (2), be fixed in fixed iron core (32) and the activity on sleeve pipe (31) top and set up movable iron core (33) in sleeve pipe (31), sleeve pipe (31) outside cover is equipped with coil (34), fixed iron core (32) with it is equipped with second spring (35) to support between movable iron core (33), second spring (35) orders about movable iron core (33) are sealed first passageway (9.1).
2. A hot water control constant valve according to claim 1, wherein: the first sealing ring (5) and the second sealing ring (6) are both made of fluororubber.
3. A hot water control constant valve according to claim 1, wherein: the top end of the movable iron core (33) is provided with a mounting hole (33.1), the second spring (35) is accommodated in the mounting hole (33.1), and the other end of the second spring (35) is abutted and matched with the fixed iron core (32); a sealing gasket (10) in sealing fit with the first channel (9.1) is embedded at the bottom end of the movable iron core (33); and a second channel (33.2) communicated with the guide cavity (7) and the mounting hole (33.1) is formed in the movable iron core (33).
4. A hot water control constant valve according to claim 1, wherein: the bottom end of the valve core (9) penetrates through the diaphragm (4) and is fixed on the diaphragm (4) through a pressing plate (11).
5. A hot water control constant valve according to claim 4, characterized in that: a support (12) is arranged in the guide cavity (7), the support (12) is arranged between the valve core (9) and the diaphragm (4) in a pressing mode, a convex edge (12.1) extends in the radial direction at the upper end of the support (12), one end of the first spring (8) is abutted against the convex edge (12.1), and an annular pressing sheet (13) is arranged between the other end of the first spring (8) and the diaphragm (4) in a pressing mode.
6. A hot water control constant valve according to claim 1, wherein: an O-shaped ring (14) is arranged at the joint of the valve cover (2) and the sleeve (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022259442.1U CN212107016U (en) | 2020-10-13 | 2020-10-13 | Hot water control constant valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022259442.1U CN212107016U (en) | 2020-10-13 | 2020-10-13 | Hot water control constant valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212107016U true CN212107016U (en) | 2020-12-08 |
Family
ID=73628765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022259442.1U Expired - Fee Related CN212107016U (en) | 2020-10-13 | 2020-10-13 | Hot water control constant valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212107016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198560A (en) * | 2021-10-25 | 2022-03-18 | 北京天玛智控科技股份有限公司 | Two-stage pilot electric control assembly and stop valve |
-
2020
- 2020-10-13 CN CN202022259442.1U patent/CN212107016U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198560A (en) * | 2021-10-25 | 2022-03-18 | 北京天玛智控科技股份有限公司 | Two-stage pilot electric control assembly and stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |