CN208886051U - A kind of pressure reducing valve - Google Patents
A kind of pressure reducing valve Download PDFInfo
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- CN208886051U CN208886051U CN201821718910.3U CN201821718910U CN208886051U CN 208886051 U CN208886051 U CN 208886051U CN 201821718910 U CN201821718910 U CN 201821718910U CN 208886051 U CN208886051 U CN 208886051U
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- valve
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- valve body
- pressure reducing
- lever
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- Feeding And Controlling Fuel (AREA)
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Abstract
The utility model provides a kind of pressure reducing valve, belongs to technical field of valve manufacturing.It solves the problems such as existing pressure reducing valve safety is not high.This pressure reducing valve includes the valve body with inlet channel and gas outlet, valve body includes the valve deck that top is fixed with, rubber film is equipped between valve deck and valve body, compression bar is fixed in the middle part of rubber film, valve deck screw top, which is connected between blind nut and blind nut and rubber film, is equipped with spring, the lower end of compression bar is connected with lever, the lever seat hinged for lever middle is fixed in valve body, lever is fixed with the rubber pad for blocking inlet channel inner end far from the end of compression bar, combustible gas sensor is fixed on valve body, combustible gas sensor connection has control circuit board, control circuit board connection has the driving structure for realizing inlet channel on-off.The utility model with high security the advantages that.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, is related to a kind of pressure reducing valve.
Background technique
Existing pressure reducing valve generally comprises valve seat, the valve deck being fixedly connected with valve seat and between valve seat and valve deck
Valve film, while valve block is fixed on valve film, and be provided with compressed spring between valve block and valve deck top, and in valve seat and valve
Leverage is connected between piece, while being coupled the plastic card head of a setting air passage in the air inlet pipe of valve seat, when closing subtracts
When pressure valve, spring reset pushes leverage mobile, to close the air passage being arranged on clamp, realizes the cutting of coal gas, when
When coal gas is connected, coal gas is exported from air passage.For current pressure reducing valve there are leakage problem, security risk is big.
In view of the above problems, people devise it is a kind of coal gas tank valve can be automatically closed device [application number:
201420748842.0；Authorization Notice No.: CN204301143U] comprising gas tank, sleeve, servo motor, pressure reducing valve, pressure
Force snesor, buffer pocket, leather hose, gas stove, gas source knob, button, servo motor is fixed by screws on sleeve, and is passed through
Shaft coupling is connected with the valve of gas tank, and the gas outlet of gas tank is connected with pressure reducing valve, and pressure sensor is fixed on buffering
On box, the side of buffer pocket is connected with the gas outlet of pressure reducing valve, and the other side of buffer pocket is connected by leather hose with gas stove.
The above-mentioned device that coal gas tank valve can be automatically closed in use, when there is gas leak, examine by pressure sensor
The atmospheric pressure value measured in leather hose changes, and control system rotates backward servo motor, to close the valve of gas tank, keeps away
Exempt from the generation of coal gas blast accident, but it is suitable for when closing the valve of gas stove but not pressing the button on gas stove again,
Just there is above-mentioned closing work, plugging operations can not be carried out for the coal gas to leak in time, safety is still not ideal enough.
Summary of the invention
The purpose of this utility model is to provide a kind of highly-safe subtract for the above-mentioned problems in the prior art
Pressure valve.
The purpose of this utility model can be realized by the following technical scheme: a kind of pressure reducing valve, including with inlet channel
With the valve body of gas outlet, the valve body includes the valve deck that top is fixed with, and it is thin that rubber is equipped between the valve deck and valve body
Film, is fixed with compression bar in the middle part of the rubber film, and the valve deck screw top is connected with blind nut and blind nut and rubber film
Between be equipped with spring, the lower end of the compression bar is connected with lever, the thick stick hinged for lever middle is fixed in the valve body
Pole socket, the lever are fixed with the rubber pad for blocking inlet channel inner end far from the end of compression bar, which is characterized in that institute
Combustible gas sensor is fixed on the valve body stated, the combustible gas sensor connection has control circuit board, the control
Wiring board connection processed has the driving structure for realizing inlet channel on-off.
In a kind of above-mentioned pressure reducing valve, the driving structure includes the micromotor for being fixed on body base, described
Micromotor be connected with control circuit board, the output shaft of the micromotor is connected with cam by speed-changing gear box,
The body base is fixed with the mandril for being equipped with and being vertically arranged on tip-lever support and tip-lever support, and the cam is contacted in mandril
Outer end, the inner end of mandril is located at inlet channel inner end and the inner end of mandril is fixed with rubber block, and the rubber block has
Extend and be located at the diaphragm between valve body and tip-lever support in periphery.
As second situation, in a kind of above-mentioned pressure reducing valve, the driving structure includes being fixed on body base
Solenoid valve, the solenoid valve is connected with control circuit board, and the valve rod of the solenoid valve protrudes into inlet channel vertically
And the end of valve rod is fixed with sealing block.
As the third situation, in a kind of above-mentioned pressure reducing valve, the driving structure includes being fixed on body top
Solenoid valve, the solenoid valve is connected with control circuit board, and the valve rod of the solenoid valve passes through blind nut simultaneously straight down
It is fixedly connected with compression bar.
In a kind of above-mentioned pressure reducing valve, the valve body, which is fixed with, is provide with combustible gas sensor and driving structure
Protective cover, the protection covers in combustible gas sensor side equipped with through-hole and through-hole is covered with dust cover.Protective cover avoids zero
Component is impaired, extends service life, through-hole ensure that the susceptibility of combustible gas sensor, dust cover avoid dust from entering guarantor
Shield and cause damage of components.
Compared with prior art, this pressure reducing valve can realize quickly cutting to inlet channel according to the combustion gas of leakage, avoid
The generation of blast accident, safety is good, and self seal is good, good operating stability, long service life.
Detailed description of the invention
Fig. 1 is structure sectional view of this pressure reducing valve in embodiment 1.
Fig. 2 is structure sectional view of this pressure reducing valve in embodiment 2.
Fig. 3 is structure sectional view of this pressure reducing valve in embodiment 3.
In figure, 1, valve body；1a, inlet channel；1b, gas outlet；2, valve deck；3, rubber film；4, compression bar；5, blind nut；6,
Spring；7, lever；8, lever seat；9, rubber pad；10, combustible gas sensor；11, control circuit board；12, micromotor；13,
Speed-changing gear box；14, cam；15, tip-lever support；16, mandril；17, rubber block；17a, diaphragm；18, solenoid valve；18a, valve rod；
19, sealing block；20, protective cover；20a, through-hole；21, dust cover.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment 1
As shown in Figure 1, this pressure reducing valve includes the valve body 1 with inlet channel 1a and gas outlet 1b, valve body 1 is solid including top
The valve deck 2 being connected with is equipped with rubber film 3 between valve deck 2 and valve body 1, compression bar 4,2 top of valve deck are fixed in the middle part of rubber film 3
It is threaded between blind nut 5 and blind nut 5 and rubber film 3 and is equipped with spring 6, the lower end of compression bar 4 is connected with lever 7, in valve body 1
It is fixed with the lever seat 8 hinged for 7 middle part of lever, lever 7 is fixed with far from the end of compression bar 4 for blocking in inlet channel 1a
The rubber pad 9 at end is fixed with combustible gas sensor 10 on valve body 1, and the connection of combustible gas sensor 10 has control circuit board 11,
Control circuit board 11, which couples, the driving structure for realizing inlet channel 1a on-off.
When this pressure reducing valve normal use, inlet channel 1a is passed through in combustion gas, then is discharged from gas outlet 1b, leaks when there is combustion gas
When, combustible gas sensor 10 detects that fuel gas will provide signals to control circuit board 11, and control circuit board 11 controls
Driving structure acts the cutting to realize inlet channel 1a, avoids the generation of blast accident, improves safety, this pressure reducing valve is not
On-off is realized to gas outlet 1b, be can not rule out because when combustion gas occur and leaking pressure reducing valve itself leakage may, inlet channel
After 1a cutting, combustion gas not can enter in valve body 1, even if pressure reducing valve itself leaks, be avoided that combustion gas continues to leak, use is safe yet
Property it is good, the control circuit of certain combustible gas sensor 10 and control circuit board 11 is the prior art, and this will not be repeated here.
Further to describe in detail, combustible gas sensor 10 and control circuit board 11 are both secured to 1 bottom of valve body in the present embodiment,
Driving structure includes the micromotor 12 for being fixed on 1 bottom of valve body, and micromotor 12 is connected with control circuit board 11, micro electric
The output shaft of machine 12 is connected with cam 14 by speed-changing gear box 13, and 1 bottom of valve body is fixed on tip-lever support 15 and tip-lever support 15
It is equipped with the mandril 16 being vertically arranged, cam 14 is contacted in the outer end of mandril 16, and the inner end of mandril 16 is located in inlet channel 1a
At the end and inner end of mandril 16 is fixed with rubber block 17, rubber block 17 there is periphery to extend and be located at valve body 1 and tip-lever support 15 it
Between diaphragm 17a.Diaphragm 17a ensure that the leakproofness between tip-lever support 15 and valve body 1, speed-changing gear box 13 be the prior art with
The revolving speed of the output shaft of conversion motor, so that 14 slow-roll stabilization of cam；When control circuit board 11 receives combustible gas sensor
After 10 signal, control circuit board 11 controls micromotor 12 and rotates, and micromotor 12 is by speed-changing gear box 13 with moving cam
14 rotations, cam 14 rotates so that mandril 16 rises, and the rubber block 17 of 16 inner end of mandril is plugged in the inner end of inlet channel 1a, real
The cutting of existing inlet channel 1a.
In order to prolong the service life, valve body 1 is fixed with the protective cover for being provide with combustible gas sensor 10 and driving structure
20, protective cover 20 is equipped with through-hole 20a in 10 side of combustible gas sensor and through-hole 20a is covered with dust cover 27.
Embodiment 2
As shown in Fig. 2, the present embodiment is essentially identical with the structure and principle of embodiment 1, the difference is that this reality
Applying driving structure in example includes the solenoid valve 18 for being fixed on 1 bottom of valve body, and solenoid valve 18 is connected with control circuit board 11, electromagnetism
The valve rod 18a of valve 18 is protruded into vertically in inlet channel 1a and the end of valve rod 18a is fixed with sealing block 19.When control circuit board 11
After the signal for receiving combustible gas sensor 10, control circuit board 11 controls solenoid valve 18 and works, the valve rod 18a of solenoid valve 18
Rise so that sealing block 19 is plugged in the inner end inlet channel 1a, the cutting of realization inlet channel 1a.
Embodiment 3
As shown in figure 3, the present embodiment is essentially identical with the structure and principle of embodiment 1, the difference is that this reality
Applying driving structure in example includes the solenoid valve 18 for being fixed on 1 top of valve body, and the valve deck 2 of valve body 1 is fixed with by screw positioned at it
The support plate at top, combustible gas sensor 10, control circuit board 11 and solenoid valve 18 are both secured in support plate, solenoid valve 18
It is connected with control circuit board 11, the valve rod 18a of solenoid valve 18 passes through blind nut 5 straight down and is fixedly connected with compression bar 4, dust cover
27 are fixed on the top of valve deck 2 in valve body 1.After control circuit board 11 receives the signal of combustible gas sensor 10, control
Wiring board 11 controls solenoid valve 18 and works, and the valve rod 18a of solenoid valve 18 drives compression bar 4 to rise, and compression bar 4 drives on 7 one end of lever
It rises, so that the rubber pad 9 of 7 other end of lever is sealed in the inner end inlet channel 1a, to realize the cutting of inlet channel 1a.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein
Described in specific embodiment be only the spirit of the present invention is given an example.The utility model technical field
Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but
Without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (5)
1. a kind of pressure reducing valve, including the valve body (1) with inlet channel (1a) and gas outlet (1b), the valve body (1) includes
The valve deck (2) that top is fixed with is equipped with rubber film (3) between the valve deck (2) and valve body (1), the rubber film
(3) middle part is fixed with compression bar (4), and the valve deck (2) screw top is connected with blind nut (5) and blind nut (5) and rubber film (3)
Between be equipped with spring (6), the lower end of the compression bar (4) is connected with lever (7), is fixed in the valve body (1) for lever
(7) the hinged lever seat (8) in middle part, the lever (7) are fixed with far from the end of compression bar (4) for blocking inlet channel
The rubber pad (9) of the inner end (1a), which is characterized in that it is fixed with combustible gas sensor (10) on the valve body (1), it is described
Combustible gas sensor (10) connection has control circuit board (11), and the control circuit board (11) connection has realization inlet channel
The driving structure of (1a) on-off.
2. a kind of pressure reducing valve according to claim 1, which is characterized in that the driving structure includes being fixed on valve body
(1) micromotor (12) of bottom, the micromotor (12) are connected with control circuit board (11), the micromotor
(12) output shaft is connected with cam (14) by speed-changing gear box (13), and the valve body (1) bottom is fixed with tip-lever support
(15) mandril (16) being vertically arranged and is equipped on tip-lever support (15), the cam (14) is contacted in the outer of mandril (16)
End, the inner end of mandril (16) is located at the inner end inlet channel (1a) and the inner end of mandril (16) is fixed with rubber block (17), described
Rubber block (17) have periphery extend and be located at the diaphragm (17a) between valve body (1) and tip-lever support (15).
3. a kind of pressure reducing valve according to claim 1, which is characterized in that the driving structure includes being fixed on valve body
(1) solenoid valve (18) of bottom, the solenoid valve (18) are connected with control circuit board (11), the solenoid valve (18)
Valve rod (18a) is protruded into vertically in inlet channel (1a) and the end of valve rod (18a) is fixed with sealing block (19).
4. a kind of pressure reducing valve according to claim 1, which is characterized in that the driving structure includes being fixed on valve body
(1) solenoid valve (18) at the top of, the solenoid valve (18) are connected with control circuit board (11), the solenoid valve (18)
Valve rod (18a) passes through blind nut (5) straight down and is fixedly connected with compression bar (4).
5. a kind of pressure reducing valve according to claim 1, which is characterized in that the valve body (1) is fixed with fuel gas
The protective cover (20) that sensor (10) and driving structure are provide with, the protective cover (20) are set in combustible gas sensor (10) side
There is through-hole (20a) and through-hole (20a) is covered with dust cover (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821718910.3U CN208886051U (en) | 2018-10-23 | 2018-10-23 | A kind of pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821718910.3U CN208886051U (en) | 2018-10-23 | 2018-10-23 | A kind of pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208886051U true CN208886051U (en) | 2019-05-21 |
Family
ID=66516935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821718910.3U Active CN208886051U (en) | 2018-10-23 | 2018-10-23 | A kind of pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208886051U (en) |
-
2018
- 2018-10-23 CN CN201821718910.3U patent/CN208886051U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A pressure reducing valve Effective date of registration: 20201115 Granted publication date: 20190521 Pledgee: Zhejiang Yuhuan Yongxing Village Bank Co., Ltd Pledgor: TAIZHOU SUJIE VALVE Co.,Ltd. Registration number: Y2020330000955 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |