CN209587174U - A kind of novel excess pressure cutout device of pressure regulator - Google Patents
A kind of novel excess pressure cutout device of pressure regulator Download PDFInfo
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- CN209587174U CN209587174U CN201920285235.8U CN201920285235U CN209587174U CN 209587174 U CN209587174 U CN 209587174U CN 201920285235 U CN201920285235 U CN 201920285235U CN 209587174 U CN209587174 U CN 209587174U
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- drive rod
- shift fork
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- pressure regulator
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Abstract
The utility model belongs to voltage adjusting device technical field, is concretely related to a kind of novel excess pressure cutout device of pressure regulator.Mainly by induction cavity, cuts off chamber and adjusting cavity is constituted, setting partition diaphragm and drive rod connected to it in induction cavity；The intracavitary tripping mechanism for being arranged and being triggered by drive rod is cut off, tripping mechanism is for issuing cutoff action；Adjusting cavity includes the valve seat that pressure-bearing spring is arranged, and drive rod is through cutting chamber and its end passes through spring pocket and the phase separation of pressure-bearing spring；Tripping mechanism includes the deflecting adjuster connecting with drive rod, for the axial linear movement of drive rod to be converted to the rotation of cut-out axle, the end of cut-out axle is for limiting shift fork and its surface setting notch, its notch makes shift fork be detached from limitation after cut-out axle rotation, shift fork shaft is arranged in shift fork root, and shift fork shaft stretches in pressure regulator valve chamber and controls stem movement by the drive rod of end.The novel excess pressure cutout device has the characteristics that compact-sized, sensitive and cut-out pressure is adjustable.
Description
Technical field
The utility model belongs to voltage adjusting device technical field, is concretely related to a kind of novel excess pressure cutout dress of pressure regulator
It sets.
Background technique
Excess pressure cutout device (stop valve), is typically mounted at gas pressure regulator, governor upstream, its feedback signal pipe is connected to tune
Depressor outlet end, once pressure regulator failure causes outlet pressure excessively high, stop valve shuts off gas supply, guarantees the peace of system
Entirely.It is disclosed using more for self-supporting gas safety cut-off valve, such as the utility model of Patent No. CN201487228U
A kind of gas high-pressure cut-off valve cuts off intracavitary tripping mechanism, tripping mechanism and the bottom of being provided with stop valve and cutting bullet
The cutting valve rod of spring is connected, and the cutting chamber is provided with piston, and piston nose is by the connecting rod with pressure spring and takes off
Buckle mechanism is connected, and rear end is connected by signal feedback pipe with gas outlet.Structure is complicated for the disconnecting device of the structure, manufacture at
This height；Tripping mechanism component is more, and connection is not close, and occupied space is big；The standard of cut-out pressure cannot adjust in real time, limit
The scope of application of stop valve.
Utility model content
It is adjustable novel super that the purpose of this utility model is just to provide a kind of compact-sized, sensitive and cut-out pressure
Press disconnecting device.
To achieve the above object, the technology employed by the present utility model is
A kind of novel excess pressure cutout device of pressure regulator, including contain induction cavity, the shell of chamber and adjusting cavity is cut off,
In, setting partition diaphragm and drive rod connected to it in the induction cavity；The cutting is intracavitary to be arranged by the drive rod
The tripping mechanism of triggering, the tripping mechanism is for issuing cutoff action；The adjusting cavity includes the valve seat that pressure-bearing spring is arranged,
The drive rod is through the cutting chamber and its end passes through spring pocket and the pressure-bearing spring phase separation；The tripping mechanism packet
The deflecting adjuster connecting with the drive rod is included, for the axial linear movement of drive rod to be converted to the rotation of cut-out axle,
The end of the cut-out axle is for limiting shift fork and its surface setting notch, its notch makes the shift fork after the cut-out axle rotation
It is detached from limitation, shift fork shaft is arranged in the shift fork root, and the shift fork shaft stretches to the biography in pressure regulator valve chamber by end
Lever controls stem movement.
Constitute a kind of additional technical feature of the novel excess pressure cutout device of above-mentioned pressure regulator further include:
--- the deflecting adjuster intracavitary positioned at the cutting includes the set axis being arranged on the drive rod, the set axis
Axle body setting be used for the arc groove of jog dial, the end of oscillating rod is arranged in the idler wheel, and the oscillating rod is cut with described
Off-axis is vertically fixed；
--- on the oscillating rod the other end opposite with idler wheel with sell axially contact manually, the manual pin shaft passes through
Through hole stretches out cutting chamber, and pre-compressed spring is arranged in the through hole；
--- the intracavitary setting of the cutting resets pivoted arm, the setting card adaptable with pivoted arm end is resetted on the shift fork
Slot, the pivoted arm that resets are limited by the end that card slot makes shift fork be rocked to again cut-off axis, are set at the shift fork shaft
Set the torque spring for compressing shift fork；
--- the air inlet connecting with signal pipe is arranged in the induction cavity above the separation film piece；Positioned at the partition
Diaphragm is arranged in the valve opening that induction cavity setting below diaphragm is pierced by for the drive rod, the drive rod and partition diaphragm junction
Pallet, the induction cavity separated below diaphragm are also provided with the spiracle with nut；
--- casing is set in the valve opening, and described sleeve pipe end is fixed at the valve opening by nut, the driving
Bar passes through the nut, and the first groove for fixing V-shaped seal ring, institute is arranged in the contact position of the nut and the drive rod
The second groove for fixing O-ring seal is arranged in the contact position for stating casing and the valve opening；
--- screw rod is arranged in the seat bottom portion of the adjusting cavity, and the screw rod holds out against the pressure-bearing spring by end cap.
A kind of novel excess pressure cutout device of pressure regulator provided by the utility model compared with the existing technology, has following
Advantage: first, since the tripping mechanism of the novel excess pressure cutout device internal cutting off chamber includes that the deflecting connecting with drive rod is adjusted
Device, for the axial linear movement of drive rod to be converted to the rotation of cut-out axle, the end of cut-out axle for limit shift fork and its
Notch is arranged in surface, its notch makes shift fork be detached from limitation after cut-out axle rotation, and shift fork shaft is arranged in shift fork root, and shift fork shaft is stretched
Enter to the drive rod in pressure regulator valve chamber by end and control stem movement, the rotation of shaft triggers tripping, incude it is sensitiveer,
Cutoff action is rapider, while structure is more compact, occupies little space, convenient for assembling with gas pressure regulator, governor；Second, due to adjusting
Screw rod is arranged in the seat bottom portion for saving chamber, and screw rod holds out against pressure-bearing spring by end cap, by can be manually rotated screw rod, adjusts pressure-bearing spring
Pretightning force, play the purpose of indirect adjustments and controls cut-out pressure, improve conveying regulator applicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for constituting the utility model excess pressure cutout device (open state)；
Fig. 2 is the structural schematic diagram of the novel excess pressure cutout device (dissengaged positions)；
Fig. 3 is the novel excess pressure cutout device and gas pressure regulator, governor installation diagram.
Specific embodiment
With reference to the accompanying drawing to a kind of structure of the novel excess pressure cutout device of pressure regulator provided by the utility model and
Working principle is described in further detail.
It is a kind of structural representation of the novel excess pressure cutout device of pressure regulator provided by the utility model referring to Fig. 1-3
Scheme, dotted line two sides are cutting chamber side sectional view in Fig. 2, Fig. 3.Constituting the novel excess pressure cutout apparatus structure includes containing induction
Chamber 2 cuts off the shell 1 of chamber 3 and adjusting cavity 4, wherein setting partition diaphragm 21 and drive rod connected to it in induction cavity 2
22；The tripping mechanism that setting is triggered by drive rod 22 in cutting chamber 3, tripping mechanism is for issuing cutoff action；Adjusting cavity 4 includes
The valve seat 42 of pressure-bearing spring 41 is set, and drive rod 22 is through cutting chamber 3 and its end passes through spring pocket 43 and 41 phase of pressure-bearing spring
Effect；Tripping mechanism includes the deflecting adjuster connecting with drive rod 22, for converting the axial linear movement of drive rod 22
At the rotation of cut-out axle 31, the end of cut-out axle 31 is for limiting shift fork 32 and its surface setting notch 311, the rotation of cut-out axle 31
Its notch 311 makes shift fork 32 be detached from limitation afterwards, and shift fork shaft 321 is arranged in 32 root of shift fork, and shift fork shaft 321 stretches to pressure regulator
Drive rod 33 in valve chamber A1 by end controls valve rod A2 movement.
Its working principle is that: original state is gas pressure regulator, governor valve port A3 opening, i.e. the tripping machine of the excess pressure cutout device
In structure, the end of shift fork 32 is limited in 31 end circumferential surface of cut-out axle, and the shift fork shaft 321 of 32 root of shift fork stretches to pressure regulation
Drive rod 33 in device valve chamber A1 by end withstands valve rod A2 and is detached from valve port A3；After receiving superpressure signal in induction cavity 2, every
The imbalance of pressure of 21 two sides of film breakage piece keeps drive rod 22 mobile, its transform linear motion is to cut by deflecting adjuster on drive rod 22
The rotation of off-axis 31, since 31 end of cut-out axle has notch 311, rotation makes 311 partial turn of notch to 32 position of shift fork
Afterwards, shift fork 32 loses limitation and rotates, and the rotation of shift fork shaft 321 drives its end drive rod 33 to move again, loses valve rod A2
Lever balance state, and then close valve port A3 and reach cutting purpose.
In constituting a kind of above-mentioned structure of the novel excess pressure cutout device of pressure regulator,
--- the deflecting adjuster in above-mentioned cutting chamber 3 can choose a variety of existing ways, implement as preferred
Mode comprising the set axis 34 on drive rod 22 is set, and the axle body setting of set axis 34 is used for the arc groove of jog dial 38
341, the end of oscillating rod 35 is arranged in idler wheel 38, and oscillating rod 35 is vertical with cut-out axle 31 fixed, i.e., drive rod 22 moves along a straight line
When, the arc groove 341 on set axis 34 makes idler wheel 38 generate swing, since idler wheel 38 is connect with 35 end of oscillating rod, oscillating rod
35 the other end is vertical with cut-out axle 31 fixed (oscillating rod 35 can be inserted perpendicularly into cut-out axle 31), the swing of oscillating rod 35
Also the rotation of cut-out axle 31 has been resulted in；
--- in order to realize hand off, in the other end and manual pin shaft 36 opposite with idler wheel 38 on above-mentioned oscillating rod 35
To contact, manual pin shaft 36 stretches out cutting chamber 3,362 setting pre-compressed springs 361, i.e. oscillating rod in through hole by through hole 362
35 both ends all constitute lever stress point, and 38 side of idler wheel is pressure sensitive, automatically cut off；Manual pin shaft 36 is once to cut manually
It is disconnected, it is convenient for artificial regulatory gas pressure regulator, governor；
--- in order to realize that the unlatching of gas pressure regulator, governor after cutting resets, the setting in above-mentioned cutting chamber 3 resets pivoted arm 37,
The card slot 371 adaptable with 37 end of pivoted arm is resetted is set on shift fork 32, and resetting pivoted arm 37 swings shift fork 32 by card slot 371
It is limited to the end for being cut off axis 31 again, the torque spring 372 for compressing shift fork 32 is set at shift fork shaft 321, it is multiple
The root of position pivoted arm 37 can also be driven by shaft 373, and shaft 373 is pierced by cutting chamber 3, be convenient for peripheral operation；
--- the air inlet connecting with signal pipe 23 is arranged in the induction cavity 2 for being preferably located at above-mentioned 21 top of partition diaphragm
24, convenient for receiving superpressure signal；The valve opening 25 being pierced by for drive rod 22 is arranged in induction cavity 2 positioned at 21 lower section of partition diaphragm, drives
Diaphragm support 26 is arranged in lever 22 and partition 21 junction of diaphragm, and 26 stress equalization of diaphragm support plays protection partition diaphragm 21
Purpose, the induction cavity 2 of partition diaphragm 21 lower section is also provided with the spiracle 27 with nut 28, ensure that partition diaphragm 21
Dynamic equilibrium, induction cavity 2 work more stable；
--- in order to enhance the leakproofness of induction cavity 2, casing 29 is set in above-mentioned valve opening 25,29 end of casing passes through nut
291 are fixed at valve opening 25, and drive rod 22 passes through nut 291, and the contact position setting of nut 291 and drive rod 22 is for fixing V
First groove 2011 of type sealing ring 201, the contact position setting of casing 29 and valve opening 25 is for fixing the of O-ring seal 202
Two grooves 2021 improve the sensitivity level of induction superpressure signal；
--- preferably, for the ease of adjusting excess pressure cutout standard, screw rod is arranged in 42 bottom of valve seat of above-mentioned adjusting cavity 4
44, screw rod 44 holds out against pressure-bearing spring 41 by end cap 45, pressure-bearing spring 41 on the basis of maintaining the dynamic equilibrium of drive rod 22,
The purpose of pressure adjustable section in real time can be adjusted in real time for different cut-out pressures, improve fitting for disconnecting device
Use range.
Claims (7)
1. a kind of novel excess pressure cutout device of pressure regulator, including contain induction cavity, cut off the shell of chamber and adjusting cavity, wherein
Setting partition diaphragm and drive rod connected to it in the induction cavity；The intracavitary setting of cutting is triggered by the drive rod
Tripping mechanism, the tripping mechanism is for issuing cutoff action；The adjusting cavity includes the valve seat that pressure-bearing spring is arranged, described
Drive rod is through the cutting chamber and its end passes through spring pocket and the pressure-bearing spring phase separation；It is characterized by: described de-
Buckle mechanism includes the deflecting adjuster connecting with the drive rod, for the axial linear movement of drive rod to be converted to cut-out axle
Rotation, the end of the cut-out axle is for limiting shift fork and its surface setting notch, its notch makes after the cut-out axle rotation
The shift fork is detached from limitation, and shift fork shaft is arranged in the shift fork root, and the shift fork shaft, which stretches in pressure regulator valve chamber, to be passed through
The drive rod of end controls stem movement.
2. a kind of novel excess pressure cutout device of pressure regulator according to claim 1, it is characterised in that: be located at the cutting
Intracavitary deflecting adjuster includes the set axis being arranged on the drive rod, and the axle body setting of the set axis is for jog dial
The end of oscillating rod is arranged in arc groove, the idler wheel, and the oscillating rod is vertical with the cut-out axle to be fixed.
3. according to a kind of novel excess pressure cutout device of pressure regulator as claimed in claim 2, it is characterised in that: on the oscillating rod
The other end opposite with idler wheel with sell axially contact manually, the manual pin shaft by through hole stretch out cutting chamber, it is described to run through
Pre-compressed spring is set in hole.
4. a kind of novel excess pressure cutout device of pressure regulator according to claim 1, it is characterised in that: the cutting is intracavitary
Setting reset pivoted arm, the setting card slot adaptable with pivoted arm end is resetted, the reset pivoted arm pass through card slot on the shift fork
The end for making shift fork be rocked to again cut-off axis is limited, and the torsion bullet for compressing shift fork is arranged at the shift fork shaft
Spring.
5. a kind of novel excess pressure cutout device of pressure regulator according to claim 1, it is characterised in that: be located at the partition
The air inlet connecting with signal pipe is arranged in induction cavity above diaphragm；Induction cavity below the partition diaphragm is arranged for institute
State the valve opening that drive rod is pierced by, the drive rod and partition diaphragm junction are arranged diaphragm support, below the partition diaphragm
Induction cavity is also provided with the spiracle with nut.
6. a kind of novel excess pressure cutout device of pressure regulator according to claim 5, it is characterised in that: set in the valve opening
Set casing, described sleeve pipe end is fixed at the valve opening by nut, the drive rod pass through the nut, the nut with
The first groove for fixing V-shaped seal ring, the contact position of described sleeve pipe and the valve opening is arranged in the contact position of the drive rod
The second groove for fixing O-ring seal is set.
7. a kind of novel excess pressure cutout device of pressure regulator according to claim 1, it is characterised in that: the adjusting cavity
Screw rod is arranged in seat bottom portion, and the screw rod holds out against the pressure-bearing spring by end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285235.8U CN209587174U (en) | 2019-03-07 | 2019-03-07 | A kind of novel excess pressure cutout device of pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285235.8U CN209587174U (en) | 2019-03-07 | 2019-03-07 | A kind of novel excess pressure cutout device of pressure regulator |
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| Publication Number | Publication Date |
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| CN209587174U true CN209587174U (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285235.8U Active CN209587174U (en) | 2019-03-07 | 2019-03-07 | A kind of novel excess pressure cutout device of pressure regulator |
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| CN (1) | CN209587174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853296A (en) * | 2020-07-23 | 2020-10-30 | 乐山川天燃气输配设备有限公司 | Overpressure automatic cut-off pressure regulator |
-
2019
- 2019-03-07 CN CN201920285235.8U patent/CN209587174U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853296A (en) * | 2020-07-23 | 2020-10-30 | 乐山川天燃气输配设备有限公司 | Overpressure automatic cut-off pressure regulator |
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