CN208578992U - Gas proportional valve core and application have the ratio valve module of the spool - Google Patents
Gas proportional valve core and application have the ratio valve module of the spool Download PDFInfo
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- CN208578992U CN208578992U CN201821056163.1U CN201821056163U CN208578992U CN 208578992 U CN208578992 U CN 208578992U CN 201821056163 U CN201821056163 U CN 201821056163U CN 208578992 U CN208578992 U CN 208578992U
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Abstract
A kind of gas proportional valve core, including valve seat (100), valve casing (1), fixed valve plug (3), coil, valve pocket (4), movable valve plug (2), seal receptacle (7), the first Location resilient piece (61) and the second Location resilient piece (62), fixed valve plug (3) is set to the front end of aforementioned valve casing (1), and has axially extending bore (33)；Movable valve plug (2) can be set to moving back and forth in aforementioned valve casing (1) and front center has extended axially forward elongated portion (21), which extends through the axially extending bore (33) of aforementioned fixed valve plug (3).Disclosed herein as well is a kind of ratio valve modules.Movable valve plug front-end and back-end ensure that concentricity by the first Location resilient piece and the second Location resilient piece guide-localization, reduces in moving process with the friction of valve casing, can effectively reduce return difference, to guarantee the stability of burning.
Description
Technical field
The utility model relates to a kind of gas valve more particularly to a kind of proportioning valves applied to gas-cooker.
Background technique
The intelligentized control method of gas cooker is the main trend of present kitchen appliance research, how to realize heat power of gas burner precisely, surely
Fixed control, and cooperate with pressure sensor, temperature sensor to realize that safer, intelligent function is always gas cooker
The important directions of research.On the other hand, the requirement with people to kitchen space utilization rate is improving, embedded, flattening, surpasses
Higher requirements are also raised to gas valve body control system for the kitchen range of thin concept.
Existing gas cooker electrically-controlled valve, mainly stepper motor driven cock, such as Patent No.
" (Authorization Notice No. is the Chinese utility model patent of 201220184529.X for a kind of gas intelligent control valve of gas-cooker
CN202597769U with the proportioning valve of epithelium) and in water heater, see that the China of patent No. ZL201420359901.5 is practical new
Type patent " the double outlet proportioning valves of inversion type " (Authorization Notice No. CN204062102U).
The disadvantages of stepper motor driven plug valve has mechanical return difference big, and 0 difficult determining, and volume is big；The skin of water heater
Film valve has small fire stability poor, there is abnormal sound and bulky problem.
Proportioning valve is also known as operated proportional flow control valve, it is the flow that oil circuit is proportionally adjusted and stablized by electric signal,
To change a kind of valve of executing agency's movement velocity, proportioning valve is often used in gas-cooker and gas heater, it is related
Technical literature can with referenced patent number be ZL201520780574.5 Chinese utility model patent " flow proportion valve " (authorization
Notification number is CN205244556U)；It can be the Chinese utility model patent " combustion of ZL01420481144.9 with referenced patent number
Gas water heater proportioning valve " (Authorization Notice No. CN204061944U) etc..
Existing proportioning valve, the machine error as caused by machining accuracy, movable valve plug both ends coaxiality deviation can be bigger,
Along with the frictional force and magnetic hysteresis of movable valve plug, moving winding during the motion, it is bigger finally to there is proportioning valve generation return difference.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of movable valve plug friction for the above-mentioned state of the art
The gas proportional valve core that power is small and both ends concentricity is high.
Another technical problem to be solved in the utility model is to provide a kind of return difference for the above-mentioned state of the art
Small gas proportional valve core.
Another technical problem to be solved in the utility model is to provide a kind of dynamic valve for the above-mentioned state of the art
The ratio valve module that core frictional force is small and both ends concentricity is high.
Another technical problem to be solved in the utility model is to provide a kind of return difference for the above-mentioned state of the art
Small ratio valve module.
Another technical problem to be solved in the utility model is to provide a kind of energy essence for the above-mentioned state of the art
Standard adjusts the ratio valve module for there be not shelves firepower.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of gas proportional valve core, special
Sign is
Valve seat, has an installation port, inner cavity, air outlet and air inlet port, inner cavity above-mentioned respectively with installation port, go out
Gas port is connected to air inlet port；
Valve casing, on cylinder-shaped and installation port set on aforementioned valve seat；
Fixed valve plug set on the front end of aforementioned valve casing, and has axially extending bore；
Coil is wound on the outside of aforementioned fixed valve plug；
Valve pocket, set on the front end of aforementioned fixed valve plug；
Movable valve plug can be set in aforementioned valve casing and front center has extended axially forward elongated portion with moving back and forth, this is stretched
Long portion extends through the axially extending bore of aforementioned fixed valve plug；
Seal receptacle, set on aforementioned movable valve plug rear end and be located at valve seat inner cavity, for on-off valve seat air inlet port and go out
The connection of gas port；
First Location resilient piece, middle part have the first central through hole passed through for elongated portion；And
Second Location resilient piece is set to aforementioned movable valve plug rear end, and middle part has to be passed through for movable valve plug tail portion or seal receptacle front end
The second central through hole.
There is axial mesoporous in the middle part of the valve pocket, be equipped in the axial direction mesoporous and adjust screw, the elongated portion front end
Equipped with spring base, a pressure spring, which is set to, to be adjusted between screw and spring base.Adjust the stroke of the adjustable movable valve plug of screw.
First Location resilient piece is preferably arranged in the following way: before first Location resilient piece is set to the movable valve plug
End face simultaneously offsets with the rear end of valve pocket.
Assembly relation between fixed valve plug, valve casing and valve pocket is preferably arranged as follows: the rear end of the fixed valve plug has first
External screw thread, front end have the first internal screw thread, and accordingly, the front end of the valve casing, which has, connect cooperation with aforementioned first external screw thread
Second internal screw thread, the rear end of the valve pocket have the second external screw thread that cooperation is connect with aforementioned first internal screw thread.
The guiding cooperation of movable valve plug tail end can be realized by one of following structure:
The first, the tail end of the movable valve plug extends back and has guide post, which extends through second positioning
Second central through hole of elastic slice is simultaneously connect with seal receptacle.
Second, the tail end of the movable valve plug forms guide groove axially inwards, and the front end of the seal receptacle extends forward
There is lug boss, which extends through the second central through hole of second Location resilient piece and be assemblied in guide groove above-mentioned
It is interior.
Further, hollow valve port set is equipped in the air inlet port, the seal receptacle lower end is equipped with gasket, should
Gasket and aforementioned valve port set can open and close cooperation.
A kind of ratio valve module, the solenoid valve including gas proportional valve core and on valve seat, it is characterised in that described
The inner cavity of valve seat includes inlet channel, inner ring channel and outer ring channel, aforementioned inlet channel with inner ring channel and outer ring channel
It communicates, the air outlet includes inner ring air outlet and outer ring air outlet, and the end of aforementioned inner ring channel forms inner ring
Air outlet, the end of aforementioned outer ring channel form outer ring air outlet, the proportioning valve of the fixed valve plug and movable valve plug composition
For opening and closing inlet channel.
The solenoid valve includes total solenoid valve and outer ring solenoid valve, and total solenoid valve above-mentioned is used to open and close air inlet port,
Outer ring solenoid valve above-mentioned is for opening and closing outer ring air outlet.
The outlet side that the inlet channel is located at the proportioning valve of fixed valve plug and movable valve plug composition is equipped with to be connected with an electric-controlled plate
The pressure sensor connect, gas proportional valve core are connect with electric-controlled plate.Here pressure sensor and proportioning valve cooperation have with
Under several functions:
The variation of gas pipeline admission pressure will lead to out fiery firepower variation, on the one hand deviate preset gear firepower size,
Phenomena such as quality of the intelligent menu of influence, serious appearance is yellow fiery, from flame.By pressure sensor, tests secondary pressure and calibrate
Each grade of firepower；
In the production process of general proportion valve, due to the deviation of proportioning valve conformity of production, need to pass through in producing line
Each grade of electric current is adjusted to guarantee that each grade of secondary pressure meets preset value, this operation for adjusting secondary pressure is generally time-consuming
The step of 3.5min is time-consuming longest in all process steps, can save this step using pressure sensor, make each time in user
Used time all calibrates primary secondary pressure, greatlys improve production efficiency；
In user's use process, if the fluctuation deviation of secondary pressure is more than certain preset range, elimination of calibrations determines
For pipe leakage, guarantee the safety of user.
Compared with the prior art, the advantages of the utility model are: movable valve plug front-end and back-end pass through the first Location resilient piece
With the second Location resilient piece guide-localization, concentricity ensure that, reduce in moving process with the friction of valve casing, can effectively reduce
Return difference, to guarantee the stability of burning.Again because of the axially directed effect of two Location resilient pieces, so that gas ratio valve can be with
It is horizontally set on gas-cooker, reduces installation space.There is no epithelium structure, resonance will not occur with air-flow and generate abnormal sound.
Detailed description of the invention
Fig. 1 is 1 structural schematic diagram of embodiment.
Fig. 2 is the three-dimensional cutaway view of Fig. 1.
Fig. 3 is ratio valve module enlarged drawing in Fig. 2.
Fig. 4 is the exploded view of Fig. 3.
Fig. 5 is 1 flow return difference curve graph of embodiment.
Fig. 6 is 2 exploded view of embodiment.
Fig. 7 is 2 three-dimensional cutaway view of embodiment.
Fig. 8 is 2 flow return difference curve graph of embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
Embodiment 1, referring to figs. 1 and 2, the ratio valve module in the present embodiment include gas proportional valve core and set
In the solenoid valve on valve seat, the inner cavity including valve seat 100 includes inlet channel 109, inner ring channel 108 and outer ring channel 107, into
Gas channel 109 is communicated with inner ring channel 108 and outer ring channel 107, and air outlet includes that inner ring air outlet 101 and outer ring go out
Gas port 103, the end of inner ring channel 108 form inner ring air outlet 101, and the end of outer ring channel 107 forms outer ring outlet
The proportioning valve that port 103, fixed valve plug 3 and movable valve plug 2 form is for opening and closing inlet channel 109.
Solenoid valve includes total solenoid valve 104 and outer ring solenoid valve 105, and total solenoid valve 104 is used to open and close air inlet port 102,
Outer ring solenoid valve 105 is for opening and closing outer ring air outlet 103.Inlet channel 109 is located at the ratio of fixed valve plug and movable valve plug composition
The outlet side of valve is equipped with the pressure sensor 106 connecting with an electric-controlled plate (in figure without display), gas proportional valve core also with it is automatically controlled
Plate connection.
In conjunction with shown in Fig. 3 and Fig. 4, the gas proportional valve core in the present embodiment include valve seat 100, valve casing 1, fixed valve plug 3,
Coil (without display in figure), valve pocket 4, movable valve plug 2, seal receptacle 7, the first Location resilient piece 61 and the second Location resilient piece 62.
Valve seat 100 has an installation port, inner cavity, air outlet and air inlet port 102, inner cavity respectively with installation port, go out
Gas port 101 is connected to air inlet port 102；Equipped with hollow valve port set 72 in air inlet port 102.
Valve casing 1 is on cylinder-shaped and installation port set on valve seat 100；Fixed valve plug 3 is set to the front end of valve casing 1 and has axis
To through-hole 33；Coil winding is in 3 outside of fixed valve plug；Valve pocket 4 is set to the front end of fixed valve plug 3.
Movable valve plug 2 can be set to moving back and forth in valve casing 1 and front center has extended axially forward elongated portion 21, the elongation
Portion 21 extends through the axially extending bore 33 of fixed valve plug 3.
Seal receptacle 7 is set to 2 rear end of movable valve plug and is located at the inner cavity of valve seat 100, the air inlet port for on-off valve seat 100
102 are connected to air outlet 101；7 lower end of seal receptacle is equipped with gasket 71, which can open and close with valve port set 72 matches
It closes.
First Location resilient piece 61 is set to the front end face of movable valve plug 2 and offsets with the rear end of valve pocket 4, the first Location resilient piece 61
Middle part has the first central through hole 611 passed through for elongated portion 21；And
Second Location resilient piece 62 is set to 2 rear end of movable valve plug, and middle part has to be passed through for 2 tail portion of movable valve plug or 7 front end of seal receptacle
The second central through hole 621.
Further, there is axial mesoporous 42 in the middle part of valve pocket 4, be equipped in the axial direction mesoporous 42 and adjust screw 5, before elongated portion 21
End is equipped with spring base 52, and pressure spring 51, which is set to, to be adjusted between screw 5 and spring base 52.Adjust the adjustable movable valve plug of screw
Stroke.
Assembly relation between fixed valve plug 3, valve pocket 4 and valve casing 1 is as follows: the rear end of fixed valve plug 3 has the first external screw thread 31,
Front end has the first internal screw thread 32, and accordingly, the front end of valve casing 1 has the second internal screw thread that cooperation is connect with the first external screw thread 31
11, the rear end of valve pocket 4 has the second external screw thread 41 that cooperation is connect with the first internal screw thread 32.
The tail end of movable valve plug 2 in the present embodiment extends back and has guide post 22, and it is fixed which extends through second
Second central through hole 621 of position elastic slice 62 is simultaneously connect with seal receptacle 7.
Movable valve plug elongated portion and guide post in the present embodiment are to be integrally formed, and are then drilled on seal receptacle, are guaranteed
The concentricity of movable valve plug and rear and front end；Within coaxiality deviation 8.
The flow variation proportional to electric current for flowing through proportioning valve is adjusted, also just can control firepower (thermic load: with gas flow
It is directly proportional) with the stepless variation of electric current.Proportioning valve return difference: electric current from large to small, then changes from small to big, the corresponding heat of same current point
The deviation of load.Return difference is an important indicator of measurement ratio valve performance, and return difference is smaller, and what is shown is kitchen range use process
Middle firepower is more stable.Reducing return difference in the electric-controlled gas stove for needing accurate temperature to adjust is that must solve the problems, such as.In conjunction with table 1
With shown in Fig. 5, absolute return difference 7.64% in the present embodiment, opposite return difference 18.65%,
Table 1
When user lights a fire by ignition key, total solenoid valve, outer ring solenoid valve are opened, and proportioning valve is arrived with the adjusting of external pulse power supply
Maximum valve opening degree, at this time inside and outside ring fire are maximum opening (9 grades).User's key as needed turns firepower down (9 grades~4 grades),
Total solenoid valve, outer ring solenoid valve are opened at this time, and ratio valve opening becomes smaller as pulse power duty ratio becomes smaller, show as in,
Outer ring firepower becomes smaller simultaneously；When user only needs interior ring fire, key adjusts firepower to 3~1 grades, and total solenoid valve is opened at this time,
Outer ring solenoid valve is closed, and ratio valve opening continues to reduce, and shows as inner ring small fire from big to small.
The present embodiment can be applied in binary channels (inner ring and outer rings) burner, also can be applied to single pass burning
In device, as long as at this moment saying that outer ring solenoid valve is closed, appendix connects inner ring air outlet.
Embodiment 2, in conjunction with shown in Fig. 6 and Fig. 7,2 tail end of movable valve plug in the present embodiment forms guide groove axially inwards
23, the front end of seal receptacle 7 is extended with forward lug boss 73, which extends through the second center of the second Location resilient piece 62
Through-hole 621 is simultaneously assemblied in guide groove 23.Other structures reference implementation example 1.
Movable valve plug molding is in need in the present embodiment drills in tail end, processes guide groove, rear and front end it is coaxial
Degree deviation is big compared with embodiment 1 at 20.
In conjunction with shown in table 2 and Fig. 8, absolute return difference 15.48% in the present embodiment, opposite return difference 43.38%, compared with embodiment
1 it is big.
Table 2
Claims (10)
1. a kind of gas proportional valve core, it is characterised in that including
Valve seat (100), has an installation port, inner cavity, air outlet and air inlet port (102), inner cavity above-mentioned respectively with installation
Port, air outlet are connected to air inlet port (102)；
Valve casing (1), on cylinder-shaped and installation port set on aforementioned valve seat (100)；
Fixed valve plug (3) is set to the front end of aforementioned valve casing (1), and has axially extending bore (33)；
Coil is wound on the outside of aforementioned fixed valve plug (3)；
Valve pocket (4) is set to the front end of aforementioned fixed valve plug (3)；
Movable valve plug (2) can be set in aforementioned valve casing (1) and front center has extended axially forward elongated portion with moving back and forth
(21), which extends through the axially extending bore (33) of aforementioned fixed valve plug (3)；
Seal receptacle (7) is set to aforementioned movable valve plug (2) rear end and is located at the inner cavity of valve seat (100), for on-off valve seat (100)
Air inlet port (102) is connected to air outlet (101)；
First Location resilient piece (61), middle part have the first central through hole (611) passed through for elongated portion (21)；And
Second Location resilient piece (62), is set to aforementioned movable valve plug (2) rear end, and middle part has for movable valve plug (2) tail portion or seal receptacle (7)
The second central through hole (621) that front end passes through.
2. gas proportional valve core according to claim 1, it is characterised in that have in axial direction in the middle part of the valve pocket (4)
Hole (42), interior be equipped with of the axial direction mesoporous (42) adjust screw (5), and the elongated portion (21) front end is equipped with spring base (52), and one
Pressure spring (51), which is set to, to be adjusted between screw (5) and spring base (52).
3. gas proportional valve core according to claim 1, it is characterised in that first Location resilient piece (61) is set to
The front end face of the movable valve plug (2) simultaneously offsets with the rear end of valve pocket (4).
4. gas proportional valve core according to claim 1, it is characterised in that the rear end of the fixed valve plug (3) has first
External screw thread (31), front end have the first internal screw thread (32), and accordingly, the front end of the valve casing (1) has and the aforementioned first outer spiral shell
The second internal screw thread (11) of line (31) connection cooperation, the rear end of the valve pocket (4) has to be connect with aforementioned first internal screw thread (32)
The second external screw thread (41) of cooperation.
5. gas proportional valve core according to claim 1, it is characterised in that the tail end of the movable valve plug (2) extends back
Have guide post (22), the guide post (22) extend through the second central through hole (621) of second Location resilient piece (62) and with
Seal receptacle (7) connection.
6. gas proportional valve core according to claim 1, it is characterised in that movable valve plug (2) tail end axially inwards at
Type has guide groove (23), and the front end of the seal receptacle (7) is extended with forward lug boss (73), which extends through institute
It states the second central through hole (621) of the second Location resilient piece (62) and is assemblied in guide groove above-mentioned (23).
7. gas proportional valve core according to claim 1, it is characterised in that in being equipped in the air inlet port (102)
Empty valve port set (72), the seal receptacle (7) lower end are equipped with gasket (71), the gasket (71) and aforementioned valve port set (72)
It can opening and closing cooperation.
8. a kind of application has the right to require the ratio valve module of any gas proportional valve core in 1~7, including gas ratio valve
Spool and the solenoid valve on valve seat, it is characterised in that the inner cavity of the valve seat (100) includes inlet channel (109), inner ring
Channel (108) and outer ring channel (107), aforementioned inlet channel (109) with inner ring channel (108) and outer ring channel (107) phase
Logical, the air outlet includes inner ring air outlet (101) and outer ring air outlet (103), aforementioned inner ring channel (108)
End forms inner ring air outlet (101), and the end of aforementioned outer ring channel (107) forms outer ring air outlet (103), described
The proportioning valve of fixed valve plug (3) and movable valve plug (2) composition is for opening and closing inlet channel (109).
9. ratio valve module according to claim 8, it is characterised in that the solenoid valve include total solenoid valve (104) and
Outer ring solenoid valve (105), total solenoid valve (104) above-mentioned is for opening and closing air inlet port (102), outer ring solenoid valve above-mentioned
(105) for opening and closing outer ring air outlet (103).
10. ratio valve module according to claim 8, it is characterised in that the inlet channel (109) is located at fixed valve plug
The pressure sensor (106) connecting with an electric-controlled plate, gas proportional valve core are equipped with the outlet side of the proportioning valve of movable valve plug composition
It is connect with electric-controlled plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821056163.1U CN208578992U (en) | 2018-07-05 | 2018-07-05 | Gas proportional valve core and application have the ratio valve module of the spool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821056163.1U CN208578992U (en) | 2018-07-05 | 2018-07-05 | Gas proportional valve core and application have the ratio valve module of the spool |
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| Publication Number | Publication Date |
|---|---|
| CN208578992U true CN208578992U (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821056163.1U Active CN208578992U (en) | 2018-07-05 | 2018-07-05 | Gas proportional valve core and application have the ratio valve module of the spool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686088A (en) * | 2018-07-05 | 2020-01-14 | 宁波方太厨具有限公司 | Valve core of gas proportional valve and proportional valve component applying valve core |
-
2018
- 2018-07-05 CN CN201821056163.1U patent/CN208578992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686088A (en) * | 2018-07-05 | 2020-01-14 | 宁波方太厨具有限公司 | Valve core of gas proportional valve and proportional valve component applying valve core |
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