CN207298047U - Integral type bellows valve free of demolition - Google Patents
Integral type bellows valve free of demolition Download PDFInfo
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- CN207298047U CN207298047U CN201721381350.2U CN201721381350U CN207298047U CN 207298047 U CN207298047 U CN 207298047U CN 201721381350 U CN201721381350 U CN 201721381350U CN 207298047 U CN207298047 U CN 207298047U
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Abstract
The utility model discloses a kind of integral type bellows valve free of demolition, valve seat including offering gas passage, three interfaces and a control port are provided with the valve seat, first interface is connected with apparatus body interface, and second interface is connected with instrumentation tap, the 3rd interface is connected with inflation tonifying Qi or effect end interface；Bellows component for controlling two interface air flues of first interface and other to connect or close is installed in the control port；Crossover sub is installed in the second interface, self-sealing joint is installed in the 3rd interface；The first interface and the 3rd interface are horizontally disposed with, the second interface and the perpendicular setting of first interface, the connecting joint etc. of bellows stop valve, charge valve, instrument is integrated in valve seat, reduce the volume of valve, and innovative design is carried out in the sealing principle and structure of valve, to improve its sealing reliability, adaptive capacity to environment and service life.
Description
Technical field
It the utility model is related to electric appliance manufacturing technology field, more particularly to a kind of integral type bellows valve free of demolition.
Background technology
SF6Gas is widely used in all kinds of high-voltage electrical equipments as a kind of safely and effectively insulation arc-extinguishing medium,
, must when these equipment being carried out with sulfur hexafluoride gas filling or being connected to the density instrument of gas leakage situation in monitoring device
The products such as SF6 gas density is control instrument, charge valve, pipe arrangement and valve seat must be matched, user need to be to SF6 in use
Gas pressure density meter carries out regularly examining and can replacing under equipment inflated condition SF6 density domination instrument.
At present, it is domestic to be typically employed in equipment gas chamber inlet and outlet root configuration ripple in the prior art to solve problem above
Tube type cut-off valve, but there are main problem in use to be for the valve：1) bellows-type shut-off valve is independent close using increase by one
Front cover, leak source increase, directly affects integral sealing reliability；2) bellows stop valve needs two or more to be used cooperatively, operation
Complexity, it is time-consuming and laborious；3) function is single, it is necessary to the use of charge valve, pipe arrangement, crossover sub etc., and overall volume is bigger than normal, not beautiful
See.
Utility model content
In view of the foregoing drawbacks or deficiency, the purpose of this utility model is to provide a kind of integral type bellows valve free of demolition,
To improve its sealing reliability, adaptive capacity to environment and service life.
To achieve the above objectives, the technical solution of the utility model is：
A kind of integral type bellows valve free of demolition, including the valve seat of gas passage is offered, it is provided with three on the valve seat
A interface and a control port, first interface are connected with apparatus body interface, second interface is connected with instrumentation tap,
3rd interface is connected with inflation tonifying Qi or effect end interface；
Ripple for controlling two interface air flues of first interface and other to connect or close is installed in the control port
Line tube assembly；Crossover sub is installed in the second interface, self-sealing joint is installed in the 3rd interface；Described first connects
Mouth and the 3rd interface are horizontally disposed with, the second interface and the perpendicular setting of first interface.
The first O-ring seal and flange are provided with the first interface.
It is also equipped with valve core case in the second interface, crossover sub card and in valve core case；The crossover sub includes
Connector, the end of connector are provided with connector, and fixing sleeve is equipped with the first nut on connector, and connector will after being welded with connector
First nut is spacing on connector, and the first nut can circumferentially rotate；First spool is installed in valve core case, is set in the first spool
The air flue being connected with connector is equipped with, the first spool side wall offers the stomata being connected with the air flue, the first spool end
First compression spring is installed, valve core case end is provided with the second baffle ring, the second baffle ring successively by the first compression spring, the first spool and
In the hole of valve core case press-in valve seat.
Second O-ring seal is installed in the seal groove of the connector；It is O-shaped close that the 3rd is provided with the seal groove of connector
Seal；4th O-ring seal is installed in the valve core case seal groove, the 5th O-shaped sealing is installed in the first core sealing groove
Circle.
Self-sealing joint in 3rd interface includes valve body, and the second spool is provided with valve body, and the second valve core upper sleeve is set
There are the second compression spring and spring base, venthole is offered on spring base；Valve end is provided with the first baffle ring, and the first baffle ring successively will
Second spool, the second compression spring and spring base are fixed in the hole of valve body.
Be provided with the seal groove of second spool the six, the 7th O-ring seals,；The sealing in six square end faces of valve body
8th O-ring seal is installed in groove.
The outer wall both ends of the valve body are both provided with external screw thread, wherein, one end is connected with the 3rd interface, is set on the other end
There is protecting cover.
The bellows component includes connecting rod, and bellows and guide sleeve, bellows both ends difference are arranged with connecting rod
It is welded to connect with guide sleeve and connecting rod；Screw rod is installed, connection boom end is provided with plug, and plug passes through second in connecting rod
Gasket is fixed in the seal groove of plug by nut；When gasket is moved to the gas passage of first interface, first is connect
The gas passage cut-out of mouth.
The plug is spun on the external screw thread of connecting rod one end, and plug side is provided with holding screw；It is provided with screw rod
9th O-ring seal；Be separately installed with the axial direction of guide sleeve and the seal groove of end face the ten, the 11st O-ring seals,.
The screw rod, which is stretched out on block end, is provided with handle, and the 12nd O-ring seal is provided with cap sealed groove.
Compared with the prior art, the beneficial effects of the utility model are：
The utility model provides a kind of integral type bellows valve free of demolition, by bellows stop valve, charge valve, instrument
Connecting joint etc. is integrated in valve seat, reduces the volume of valve, and carries out innovative design in the sealing principle and structure of valve, to carry
High its sealing reliability, adaptive capacity to environment and service life, and user is in periodic check SF6It is not required to dismantle during density domination instrument
Instrument, only need to be by the rotatable handle of control port part to closed mode, you can the periodic check of instrument is realized, so as to fulfill exempting from
Disassembling function, the utility model standardized designs can easily realize product line by the various combination and remodeling of parts
Change, to meet the various uses of user and installation requirement.
Brief description of the drawings
Fig. 1 is the utility model apparatus structure schematic diagram；
Fig. 2 is the first interface configuration diagram of the utility model；
Fig. 3 is the crossover sub configuration diagram of the utility model
Fig. 4 is the self-sealing joint configuration diagram of the utility model
Fig. 5 is the bellows component configuration diagram of the utility model.
In figure, the 1-the second nut；2-gasket；3-plug；4-holding screw；5-the ten O-ring seal；6-the
11 O-ring seals；7-guide sleeve；8-bellows；9-connecting rod；10-the nine O-ring seal；11-screw rod；12-connect
Head；13-the second O-ring seal；14-connector；15-the first nut, the 16-the three O-ring seal；17-the second spool；
18-the seven O-ring seal；19-the six O-ring seal；20-valve body；21-the second compression spring；22-the eight O-ring seal；
23-spring base；24-the first baffle ring；25-handle；26-the three nut；27-spring washer；28-plain cushion；29-block；30—
Bellows component；31-the first compression spring；32-valve seat；33-self-sealing joint；34-the ten three O-ring seal；35-protecting cover；
36-the five O-ring seal；37-the four O-ring seal；38-the first spool；39-the second baffle ring；40-crossover sub；
41-valve core case；42-the ten two O-ring seal；43-the first O-ring seal；44-flange；231-venthole；321-the
One interface；322-second interface；323-the three interface；324-control port.
Embodiment
The utility model is described in detail below in conjunction with attached drawing, it is clear that described embodiment is only this practicality
New part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, ordinary skill people
Member's all other embodiments obtained without making creative work, belong to the protection model of the utility model
Enclose.
As shown in Figure 1, the utility model provides a kind of integral type bellows valve free of demolition, including offer gas passage
Valve seat 32, be provided with three interfaces and a control port 324, first interface 321 and apparatus body on the valve seat 32
Interface is connected, and second interface 322 is connected with instrumentation tap, the 3rd interface 323 is connected with inflation tonifying Qi or effect end interface
Connect；
It is provided with the control port 324 for controlling two interface air flues of first interface 321 and other to connect or close
The bellows component 30 closed；Crossover sub 40 is installed in the second interface 322, is provided with the 3rd interface 323 certainly
Sealing joint 33；321 and the 3rd interface 323 of first interface is horizontally disposed, the second interface 322 and 321 phase of first interface
It is vertically arranged.
Specifically, as shown in Fig. 2, for first interface 321：
The first O-ring seal 43 and flange 44 are provided with the first interface 321.It is equipped with the end face of the interface end
O-ring seal, using end face seal.First O-ring seal 43 in the seal groove of 32 right end of valve seat, 32 flange 44 of valve seat with
After apparatus body connection, under the action of valve seat 32 and body faying face, certain decrement can be produced to O-ring seal 43,
Sealed so as to fulfill the connection of integral type bellows valve free of demolition and apparatus body.
As shown in figure 3, for second interface 322：
The sealing structure of valve seat and instrument：O-ring seal is housed on connecting joint, using end face seal, connecting joint
Two O-ring seals are housed, with valve seat axial seal on connector.
Valve core case 41 is also equipped with the second interface 322, crossover sub 40 blocks and in valve core case 41；The conversion
Connector 40 includes connector 14, and the end of connector 14 is provided with connector 12, and fixing sleeve is equipped with the first nut 15 on connector 14,
Connector 12 is spacing on connector 14 by nut 15 after being welded with connector 14, and nut 15 can circumferentially rotate；Peace in valve core case 41
Equipped with the first spool 38, the air flue being connected with connector 14 is provided with the first spool 38,38 side wall of the first spool offers
The stomata being connected with the air flue, 38 end of the first spool are provided with the first compression spring 31, and 41 end of valve core case is provided with second gear
Circle 39, the first compression spring 31, the first spool 38 and valve core case 41 are pressed into the hole of valve seat 32 by the second baffle ring 39 successively.
The nut 15 of crossover sub 40 is spun on the screw thread of 32 upper end of valve seat, and the lower end of connector 14 withstands on the first spool 38
Head, the first spool 38 moves down；Under the action of valve seat 32 and connector 14, the 3rd O-ring seal 16 is produced certain
Compression.
Second O-ring seal 13 is installed in the seal groove of the connector 12；Is provided with the seal groove of connector 14
Three O-ring seals 16；4th O-ring seal 37 is installed in 41 seal groove of valve core case, is pacified in 38 seal groove of the first spool
Equipped with the 5th O-ring seal 36.Under the action of the first compression spring 31 and valve core case 42, the 5th O-ring seal 36 is produced necessarily
Compression；Under the action of valve core case 41 and valve seat 32, certain compression is produced to the 4th O-ring seal 37.
As shown in figure 4, for the 3rd interface 323：
Self-sealing joint 33 in 3rd interface 323 includes valve body 20, is provided with the second spool 17 in valve body 20, and second
The second compression spring 21 and spring base 23 are arranged with spool 17, venthole 231 is offered on spring base 23；20 end of valve body is provided with
Second spool 17, the second compression spring 21 and spring base 23 are fixed on the hole of valve body 20 by the first baffle ring 24, the first baffle ring 24 successively
It is interior.
The six, the 7th O-ring seals 18,19 are installed in the seal groove of second spool 17；Six square ends of valve body 20
8th O-ring seal 22 is installed in the seal groove in face.
The outer wall both ends of the valve body 20 are both provided with external screw thread, wherein, one end is connected with the 3rd interface 323, the other end
On be provided with protecting cover 35.
The valve body 20 of self-sealing joint 33 is screwed in the screw thread in the left side of valve seat 32, right under the action of valve body 20 and valve seat 32
8th O-ring seal 22 produces certain compression；13rd O-ring seal 34 loads in the seal groove of protecting cover 35, on protecting cover 35
Internal thread is formed with, is spun on valve body 20, under the action of valve body 20 and protecting cover 35, the 13rd O-ring seal 34 is produced necessarily
Compression, to self-sealing joint 33 carry out secondary seal.
As shown in figure 5, for control port 324：
The bellows component 30 includes connecting rod 9, and bellows 8 and guide sleeve 7,8 liang of bellows are arranged with connecting rod 9
End is welded to connect with guide sleeve 7 and connecting rod 9 respectively；Screw rod 11 is installed, 9 end of connecting rod is provided with plug in connecting rod 9
3, gasket 2 is fixed in the seal groove of plug 3 by plug 3 by the second nut 1；When gasket 2 is moved to first interface 321
Gas passage when, the gas passage of first interface 321 is cut off.
The plug 3 is spun on the external screw thread of 9 one end of connecting rod, and 3 side of plug is provided with holding screw 4；On screw rod 11
9th O-ring seal 10 is installed；It is O-shaped close that the ten, the 11st are separately installed with the axial direction of guide sleeve 7 and the seal groove of end face
Seal 5,6.
The screw rod 11, which is stretched out on 29 end of block, is provided with handle 25, and it is O-shaped close to be provided with the 12nd in 29 seal groove of block
Seal 42.
Block 29, handle 25 are sequentially sleeved on screw rod 11, and are connected to spiral shell by the 3rd nut 26, spring washer 27, plain cushion 28
One end of bar 11；Block 29 is formed with internal thread, is spun on the external screw thread of 32 lower end of valve seat, and the 12nd O-ring seal 42 is mounted in lid
On the seal groove of cap 29, under the action of block 29 and guide sleeve 7, certain compression is produced to the 12nd O-ring seal 42；
Valve seat 32 is with the action of guide sleeve 7, producing the ten, the 11st O-ring seals 5,6 certain compression.
The operation principle of the new sulfur hexafluoride gas combined valve：
When needing to inflate tonifying Qi and equipment normal operation to equipment, handle 25 is rotated counterclockwise to defined position (connection
The back-out of bar 9 and block 29 to screw rod 11 carries out spacing), gas passage in valve seat 32, the gas with the valve body 20 of self-sealing joint
Passage, the gas passage of the first spool 38, the gas passage of connector 14 of crossover sub and the gas passage of connector 12 connect；
When needing effect instrument, handle 25 is rotated clockwise, drives screw rod 11 to screw out connecting rod 19, bellows 8 is shunk, connecting rod 9
Set 7 is oppositely oriented to move up, connecting rod 9 promotes plug 3, gasket 2 to move up, under the action of plug 3 and valve seat 32,
Gasket 2 produces certain compression, and the gas circuit between apparatus body end and self-sealing joint 33, crossover sub 41 is sectioned, so that
Realize the function of online effect instrument.
The utility model is characterized in that：
1st, design structure is reasonable, and leakproofness is reliable, and end face seal is used under inflation tonifying Qi and effect two states, cuts
The main telescopicing performance for utilizing metal bellows of stop point, with metal bellows by connecting rod and guide sleeve by welding
Connection, after assembling, it is metal hard-sealing to make connecting rod sliding position and the external world, ensures connecting rod sliding position zero leakage, reliably
Property high, its SF6Gas permeation rate is less than 1 × 10-15MPa.m3/ s (is less than 1 × 10-9Pa.m3/s)；
2nd, the sealing of spool and valve core case, the valve body conical surface and spool utilizes sealing ring in spring force-summing device internal pressure
Completed under double action, the cone structure design of valve core case, valve body has automatic guide and positioning function when turning off state.Bullet
The rational design of spring ensure that the decrement of sealing ring, and the rational design of seal groove ensure that sealing ring under the effect of larger pressure
Not only played sealing function but will not sealing ring be damaged.
3rd, instrumentation tap end uses embedded structure, and valve core case is loaded in valve seat and using axial double containment, is being connected
During instrument, local terminal is again sealed off by axial seal, substantially increases the overall tightness of product.
4th, after connecting joint being screwed out valve seat, spool seals under the action of compression spring with valve core case, realizes the interface end
Self-sealing function.
5th, by rotating handle, drive and produce relative sliding between the part of bellows component, make gasket with valve seat
The sealing surface in hole produces sealing, blocks body and the gas circuit at instrumentation tap end, inflation gas supplementing opening end, you can realize inflation tonifying Qi or
The periodic check of instrument, so as to fulfill function free of demolition.
6th, valve seat construction design is reasonable, is integrated with the functions such as inflation tonifying Qi, instrument connection, cut-off gas circuit, simplifies design,
So that the overall volume of valve is small, light-weight, aesthetic in appearance；
7th, building block system standardized designs can easily realize product seriation by the various combination and remodeling of parts,
To meet the various uses of user and installation requirement.
It is obvious to a person skilled in the art that it will appreciate that above-mentioned Concrete facts example is the preferred of the utility model
Scheme, therefore improvement, the variation that those skilled in the art may make some parts in the utility model, embodiment
It is still the principle of the utility model, realization is still the purpose of this utility model, belongs to the scope that the utility model is protected.
Claims (10)
1. a kind of integral type bellows valve free of demolition, it is characterised in that the valve seat (32) including offering gas passage, the valve
Three interfaces are provided with seat (32) and a control port (324), first interface (321) are connected with apparatus body interface
Connect, second interface (322) is connected with instrumentation tap, the 3rd interface (323) is connected with inflation tonifying Qi or effect end interface；
It is provided with the control port (324) for controlling two interface air flues of first interface (321) and other to connect or close
The bellows component (30) closed；Crossover sub (40) is installed, the 3rd interface (323) is interior in the second interface (322)
Self-sealing joint (33) is installed；The first interface (321) and the 3rd interface (323) are horizontally disposed, the second interface (322)
With first interface (321) perpendicular setting.
2. integral type bellows valve free of demolition according to claim 1, it is characterised in that in the first interface (321)
It is provided with the first O-ring seal (43) and flange (44).
3. integral type bellows valve free of demolition according to claim 1, it is characterised in that in the second interface (322)
Valve core case (41) is also equipped with, crossover sub (40) blocks and in valve core case (41)；The crossover sub (40) includes connector
(14), the end of connector (14) is provided with connector (12), and fixing sleeve is equipped with the first nut (15), connector on connector (14)
(12) with after connector (14) welding that the first nut (15) is spacing on connector (14), the first nut (15) can circumferentially turn
It is dynamic；First spool (38) is installed in valve core case (41), the gas being connected with connector (14) is provided with the first spool (38)
Road, the first spool (38) side wall offer the stomata being connected with the air flue, and the first spool (38) end is provided with the first compression spring
(31), valve core case (41) end is provided with the second baffle ring (39), and the second baffle ring (39) is successively by the first compression spring (31), the first spool
(38) and in the hole of valve core case (41) press-in valve seat (32).
4. integral type bellows valve free of demolition according to claim 3, it is characterised in that the seal groove of the connector (12)
Second O-ring seal (13) is inside installed；3rd O-ring seal (16) is installed in the seal groove of connector (14)；The valve
4th O-ring seal (37) is installed in core print seat (41) seal groove, the 5th O-shaped sealing is installed in the first spool (38) seal groove
Enclose (36).
5. integral type bellows valve free of demolition according to claim 1, it is characterised in that in the 3rd interface (323)
Self-sealing joint (33) include valve body (20), the second spool (17) is installed in valve body (20), the second spool is arranged with (17)
Second compression spring (21) and spring base (23), offer venthole (231) on spring base (23)；Valve body (20) end is provided with first
Second spool (17), the second compression spring (21) and spring base (23) are fixed on valve body by baffle ring (24), the first baffle ring (24) successively
(20) in hole.
6. integral type bellows valve free of demolition according to claim 5, it is characterised in that second spool (17) it is close
Six, the 7th O-ring seals (18,19) are installed in sealing groove；The 8th O is installed in the seal groove in six square end faces of valve body (20)
Type sealing ring (22).
7. integral type bellows valve free of demolition according to claim 5, it is characterised in that the outer wall two of the valve body (20)
End is both provided with external screw thread, wherein, one end is connected with the 3rd interface (323), and protecting cover (35) is provided with the other end.
8. integral type bellows valve free of demolition according to claim 1, it is characterised in that bellows component (30) bag
Include connecting rod (9), be arranged with bellows (8) and guide sleeve (7) in connecting rod (9), bellows (8) both ends respectively with guide sleeve
(7) it is welded to connect with connecting rod (9)；Screw rod (11) is installed in connecting rod (9), connecting rod (9) end is provided with plug (3),
Gasket (2) is fixed in the seal groove of plug (3) by plug (3) by the second nut (1)；When gasket (2) is moved to
During the gas passage of one interface (321), the gas passage of first interface (321) is cut off.
9. integral type bellows valve free of demolition according to claim 8, it is characterised in that the plug (3) is spun on connection
On the external screw thread of bar (9) one end, plug (3) side is provided with holding screw (4)；Screw rod is provided with the 9th O-shaped sealing on (11)
Enclose (10)；The ten, the 11st O-ring seals (5,6) are separately installed with the axial direction of guide sleeve (7) and the seal groove of end face.
10. integral type bellows valve free of demolition according to claim 8, it is characterised in that the screw rod (11) stretches out lid
Cap (29) is provided with handle (25) on end, and the 12nd O-ring seal (42) is provided with block (29) seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721381350.2U CN207298047U (en) | 2017-10-25 | 2017-10-25 | Integral type bellows valve free of demolition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721381350.2U CN207298047U (en) | 2017-10-25 | 2017-10-25 | Integral type bellows valve free of demolition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207298047U true CN207298047U (en) | 2018-05-01 |
Family
ID=62272369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721381350.2U Active CN207298047U (en) | 2017-10-25 | 2017-10-25 | Integral type bellows valve free of demolition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207298047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709282A (en) * | 2019-02-25 | 2019-05-03 | 深圳供电局有限公司 | GIS equipment and test connector thereof |
| CN110425294A (en) * | 2019-07-12 | 2019-11-08 | 南京弘峰电气有限公司 | A kind of bellows valve |
-
2017
- 2017-10-25 CN CN201721381350.2U patent/CN207298047U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709282A (en) * | 2019-02-25 | 2019-05-03 | 深圳供电局有限公司 | GIS equipment and test connector thereof |
| CN109709282B (en) * | 2019-02-25 | 2024-05-14 | 深圳供电局有限公司 | GIS equipment's test connector and GIS equipment |
| CN110425294A (en) * | 2019-07-12 | 2019-11-08 | 南京弘峰电气有限公司 | A kind of bellows valve |
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