CN111350858A - Connecting structure of valve body and valve cover - Google Patents
Connecting structure of valve body and valve cover Download PDFInfo
- Publication number
- CN111350858A CN111350858A CN202010288334.9A CN202010288334A CN111350858A CN 111350858 A CN111350858 A CN 111350858A CN 202010288334 A CN202010288334 A CN 202010288334A CN 111350858 A CN111350858 A CN 111350858A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- valve cover
- sleeve
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 241000283216 Phocidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/504—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating means being rotable, rising, and having internal threads which co-operate with threads on the outside of the valve body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
- F16K41/106—Spindle sealings with diaphragm, e.g. shaped as bellows or tube for use with rotating spindles or valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to the technical field of valves, in particular to a connecting structure of a valve body and a valve cover, which solves the defects of inconvenient disassembly and assembly and poor sealing performance in the prior art and comprises the valve body, wherein a connecting disc is arranged at the upper end of the valve body, the connecting disc and the valve body are of an integrated structure, a sealing ring groove is formed in the upper end of the connecting disc, a sealing ring is arranged in the sealing ring groove, the upper end of the sealing ring is in contact connection with the valve cover, the upper end of the connecting disc is provided with the valve cover, the lower end of the valve cover is provided with a clamping block, and; the upper end of valve gap is provided with the sleeve, sleeve and valve gap formula structure as an organic whole. This scheme is through designing the draw-in groove on the connection pad of valve body, and at the lower extreme design fixture block of valve gap, through the cooperation of draw-in groove and fixture block, conveniently fixes a position the valve gap, is convenient for carry out the installation of bolt, avoids the inconvenience that causes when to the hole.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a connecting structure of a valve body and a valve cover.
Background
The valve is an important fluid control device in industry, relates to various departments of national economy, and is an important basic device for the development of the national economy. A valve is a device used in a fluid system to control the direction, pressure, and flow of a fluid. The valve is a device that can control the flow rate of a medium (liquid, gas, powder) in a pipe or equipment by flowing or stopping the medium.
Wherein in some low pressure lines, the valve of installation is many with the threaded rod drive, mainly relies on threaded connection self sealss between threaded rod and the valve gap, in case long-term the back of using, its leakproofness variation leads to leaking very easily, when valve gap and valve body installation, need to lead to the installation inconvenient to the hole construction bolt moreover. Accordingly, there is a need for improvements in the art.
Disclosure of Invention
The invention aims to solve the defects of inconvenient disassembly and assembly and poor sealing performance in the prior art, and provides a connecting structure of a valve body and a valve cover.
In order to achieve the purpose, the invention adopts the following technical scheme:
a connecting structure of a valve body and a valve cover comprises the valve body, wherein a connecting disc is arranged at the upper end of the valve body, the connecting disc and the valve body are of an integrated structure, a sealing ring groove is formed in the upper end of the connecting disc, a sealing ring is installed in the sealing ring groove, the upper end of the sealing ring is in contact connection with the valve cover, the upper end of the connecting disc is provided with the valve cover, a clamping block is arranged at the lower end of the valve cover, and the clamping block and the valve cover are of an;
the upper end of the valve cover is provided with a sleeve, the sleeve and the valve cover are of an integrated structure, the outer side of the sleeve is fixedly connected with a support ring, a rubber sleeve is sleeved in the support ring, the outer side of the sleeve is connected with a locking ring through threads, the locking ring is in contact with the rubber sleeve, a moving column is slidably connected in the sleeve, the upper end of the moving column is connected with a fastening sleeve through threads, the fastening sleeve is in contact with the rubber sleeve, and the lower end of the moving column is fixedly connected with a push rod;
the upper end fixedly connected with support frame of valve gap, the upper end fixedly connected with uide bushing of support frame, the uide bushing internal rotation is connected with the threaded rod, the upper end fixedly connected with handle of threaded rod.
Preferably, the connecting disc is provided with first through holes, bolts are inserted into the first through holes, the number of the first through holes is six, and the six first through holes are arranged on the connecting disc in an annular array.
Preferably, the upper end of connection pad has seted up the draw-in groove, the joint has the fixture block in the draw-in groove, the quantity of draw-in groove is two the draw-in groove is the symmetric distribution on the connection pad.
Preferably, a second through hole is formed in the valve cover, a bolt is inserted into the second through hole, and a nut is connected to the bolt through threads.
Preferably, a thread groove is formed in the movable column, and a threaded rod is connected in the thread groove through threads.
Preferably, the outer side of the moving column is provided with a sliding groove, and a limiting pin is connected in the sliding groove in a sliding manner.
Preferably, the inside fixedly connected with supporting shoe of valve gap, there is the spacer pin through threaded connection in the supporting shoe.
Preferably, the surface of the threaded rod is provided with an annular groove, a limit pin is in contact connection in the annular groove, and the limit pin is in threaded connection with the guide sleeve.
The invention has the beneficial effects that: according to the scheme, the clamping groove is formed in the connecting disc of the valve body, the clamping block is arranged at the lower end of the valve cover, and the valve cover is conveniently positioned and conveniently installed through the matching of the clamping groove and the clamping block, so that inconvenience caused by hole aligning is avoided;
through the design removal post in the sleeve of valve gap, installation threaded rod in the removal post, the upper end installation rubber sleeve of removal post, the lower part of rubber sleeve is installed in telescopic outside, through the design of rubber sleeve, has good sealed effect, and threaded rod and valve body contactless have effectively avoided traditional threaded rod and valve gap to be connected the leakage problem that closely causes inadequately.
Drawings
Fig. 1 is a schematic structural view of a connection structure of a valve body and a valve cover according to the present invention;
FIG. 2 is an enlarged view of a portion A of the connection structure of the valve body and the valve cover according to the present invention;
FIG. 3 is an enlarged view of a portion B of the connection structure of the valve body and the valve cover according to the present invention;
FIG. 4 is an enlarged view of a portion C of the connection structure of the valve body and the valve cover according to the present invention, as shown in FIG. 1;
FIG. 5 is a top view of the valve body of FIG. 1 illustrating a coupling structure of the valve body and the bonnet according to the present invention;
fig. 6 is a right side view of the moving column of fig. 1 illustrating a connection structure of a valve body and a valve cover according to the present invention.
In the figure: the sealing device comprises a valve body 1, a connecting disc 2, a first through hole 3, a clamping groove 4, a sealing ring groove 5, a valve cover 6, a second through hole 7, a clamping block 8, a bolt 9, a nut 10, a sleeve 11, a supporting ring 12, a rubber sleeve 13, a locking ring 14, a movable column 15, a threaded groove 16, a sliding groove 17, a fastening sleeve 18, a push rod 19, a supporting block 20, a limiting pin 21, a supporting frame 22, a guide sleeve 23, a threaded rod 24, an annular groove 25, a limiting nail 26, a handle 27 and a sealing ring 28.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, the connecting structure of the valve body and the valve cover comprises a valve body 1, wherein a connecting disc 2 is arranged at the upper end of the valve body 1, the connecting disc 2 and the valve body 1 are of an integrated structure, a sealing ring groove 5 is formed in the upper end of the connecting disc 2, a sealing ring 28 is arranged in the sealing ring groove 5, the upper end of the sealing ring 28 is in contact connection with the valve cover 6, the valve cover 6 is arranged at the upper end of the connecting disc 2, a clamping block 8 is arranged at the lower end of the valve cover 6, and the;
the upper end of the valve cover 6 is provided with a sleeve 11, the sleeve 11 and the valve cover 6 are of an integral structure, the outer side of the sleeve 11 is fixedly connected with a support ring 12, a rubber sleeve 13 is sleeved in the support ring 12, the outer side of the sleeve 11 is connected with a locking ring 14 through threads, the locking ring 14 is in contact with the rubber sleeve 13, a moving column 15 is connected in the sleeve 11 in a sliding mode, the upper end of the moving column 15 is connected with a fastening sleeve 18 through threads, the fastening sleeve 18 is in contact with the rubber sleeve 13, the lower end of the moving column 15 is fixedly connected with a push rod 19, the bottom of the push rod 19 is connected;
the upper end fixedly connected with support frame 22 of valve gap 6, the upper end fixedly connected with uide bushing 23 of support frame 22, the uide bushing 23 internal rotation is connected with threaded rod 24, the upper end fixedly connected with handle 27 of threaded rod 24.
According to the scheme, the clamping groove 4 is formed in the connecting disc 2 of the valve body 1, the clamping block 8 is formed in the lower end of the valve cover 6, the valve cover 6 is conveniently positioned through the matching of the clamping groove 4 and the clamping block 8, the bolt 9 is conveniently installed, and inconvenience caused by hole aligning is avoided;
through design removal post 15 in the sleeve 11 of valve gap 6, install threaded rod 24 in the removal post 15, remove the upper end installation rubber sleeve 13 of post 15, the outside at sleeve 11 is installed to the lower part of rubber sleeve 13, through the design of rubber sleeve 13, has good sealed effect, threaded rod 24 and valve body 1 contactless, has effectively avoided traditional threaded rod 24 to be connected the leakage problem that closely causes inadequately with valve gap 6.
In this embodiment, the connection disc 2 is provided with the first through holes 3, the bolts 9 are inserted into the first through holes 3, the number of the first through holes 3 is six, and the six first through holes 3 are arranged on the connection disc 2 in an annular array. By the design of the first through hole 3, an installation space is provided for the bolt 9.
In this embodiment, draw-in groove 4 has been seted up to the upper end of connection pad 2, and the joint has fixture block 8 in draw-in groove 4, and the quantity of draw-in groove 4 is two, and two draw-in grooves 4 are the symmetric distribution on connection pad 2. Through the cooperation of draw-in groove 4 and fixture block 8, conveniently fix a position the hole to valve gap 6, the installation of the bolt 9 of being convenient for.
In this embodiment, the valve cover 6 is provided with a second through hole 7, a bolt 9 is inserted into the second through hole 7, and the bolt 9 is connected with a nut 10 through a thread. The second through hole 7 is designed to provide an installation space for the bolt 9.
In this embodiment, a threaded groove 16 is formed in the movable column 15, and a threaded rod 24 is threadedly connected to the threaded groove 16. The threaded rod 24 can be moved in a threaded manner relative to the threaded groove 16 to produce a relative displacement.
In this embodiment, the outer side of the moving column 15 is provided with a sliding slot 17, and the sliding slot 17 is slidably connected with a limit pin 21. The rotation of the movable column 15 can be prevented by the cooperation of the slide groove 17 and the stopper pin 21.
In this embodiment, a supporting block 20 is fixedly connected inside the valve cover 6, and a limit pin 21 is connected inside the supporting block 20 through a thread. The supporting block 20 has a supporting function for the stopper pin 21.
In this embodiment, the surface of the threaded rod 24 is provided with an annular groove 25, the annular groove 25 is internally connected with a limit pin 26 in a contact manner, and the limit pin 26 is in threaded connection with the guide sleeve 23. The threaded rod 24 is prevented from moving axially by the cooperation of the annular groove 25 and the stop pin 26.
The specific implementation process of the invention is as follows: when the valve cover 6 needs to be installed, the clamping block 8 at the bottom of the valve cover 6 is matched with the clamping groove 4 designed on the connecting disc 2 on the valve body 1, hole-aligning work can be realized, the bolt 9 is convenient to install, the installation is convenient and rapid, when the valve needs to be operated, the handle 27 is rotated, the handle 27 drives the threaded rod 24 to rotate, the threaded rod 24 and the threaded groove 16 in the moving column 15 generate threaded motion to generate relative displacement, the threaded rod 24 is limited by the limiting nail 26 and the annular groove 25, so that the moving column 15 generates axial movement, the sliding groove 17 on the moving column 15 and the limiting pin 21 generate relative sliding, the moving column 15 drives the upper end of the rubber sleeve 13 to move, the rubber sleeve 13 stretches out and draws back, the moving column 15 can drive the push rod 19 to move, the operation can be realized, the design of the rubber sleeve 13 has excellent sealing effect, the threaded rod 24 is not in contact with the, the leakage problem caused by the fact that the traditional threaded rod 24 is not tightly connected with the valve cover 6 is effectively avoided, and the valve is suitable for being used in a low-pressure pipeline.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a connection structure of valve body and valve gap, includes valve body (1), its characterized in that: the upper end of the valve body (1) is provided with a connecting disc (2), the connecting disc (2) and the valve body (1) are of an integrated structure, the upper end of the connecting disc (2) is provided with a sealing ring groove (5), a sealing ring (28) is installed in the sealing ring groove (5), the upper end of the sealing ring (28) is in contact connection with a valve cover (6), the upper end of the connecting disc (2) is provided with a valve cover (6), the lower end of the valve cover (6) is provided with a clamping block (8), and the clamping block (8) and the valve cover (6) are of an integrated structure;
the upper end of the valve cover (6) is provided with a sleeve (11), the sleeve (11) and the valve cover (6) are of an integrated structure, the outer side of the sleeve (11) is fixedly connected with a support ring (12), a rubber sleeve (13) is sleeved in the support ring (12), the outer side of the sleeve (11) is connected with a locking ring (14) through threads, the locking ring (14) is in contact with the rubber sleeve (13), a moving column (15) is connected in the sleeve (11) in a sliding mode, the upper end of the moving column (15) is connected with a fastening sleeve (18) through threads, the fastening sleeve (18) is in contact with the rubber sleeve (13), and the lower end of the moving column (15) is fixedly connected with a push rod (19);
the upper end fixedly connected with support frame (22) of valve gap (6), the upper end fixedly connected with uide bushing (23) of support frame (22), uide bushing (23) internal rotation is connected with threaded rod (24), the upper end fixedly connected with handle (27) of threaded rod (24).
2. The connecting structure of the valve body and the valve cover according to claim 1, wherein the connecting disc (2) is provided with first through holes (3), bolts (9) are inserted into the first through holes (3), the number of the first through holes (3) is six, and the six first through holes (3) are arranged on the connecting disc (2) in an annular array.
3. The connecting structure of the valve body and the valve cover according to claim 1, wherein a clamping groove (4) is formed in the upper end of the connecting disc (2), two clamping blocks (8) are clamped in the clamping groove (4), and the two clamping grooves (4) are symmetrically distributed on the connecting disc (2).
4. A connection structure of a valve body and a valve cover according to claim 1, characterized in that the valve cover (6) is provided with a second through hole (7), a bolt (9) is inserted into the second through hole (7), and the bolt (9) is connected with a nut (10) through a thread.
5. A valve body and bonnet connection as claimed in claim 1, wherein the displacement post (15) has a threaded groove (16) formed therein, the threaded groove (16) having a threaded rod (24) threadedly engaged therein.
6. A connection structure of a valve body and a valve cover according to claim 1, wherein a sliding slot (17) is formed on the outer side of the moving column (15), and a limit pin (21) is slidably connected in the sliding slot (17).
7. A valve body and valve cover connecting structure according to claim 1, wherein a supporting block (20) is fixedly connected to the inside of the valve cover (6), and a limit pin (21) is connected to the inside of the supporting block (20) through a thread.
8. A valve body and valve cover connecting structure as claimed in claim 1, wherein the threaded rod (24) has an annular groove (25) formed in the surface thereof, a limit pin (26) is in contact connection with the annular groove (25), and the limit pin (26) is in threaded connection with the guide sleeve (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010288334.9A CN111350858A (en) | 2020-04-14 | 2020-04-14 | Connecting structure of valve body and valve cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010288334.9A CN111350858A (en) | 2020-04-14 | 2020-04-14 | Connecting structure of valve body and valve cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111350858A true CN111350858A (en) | 2020-06-30 |
Family
ID=71193338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010288334.9A Pending CN111350858A (en) | 2020-04-14 | 2020-04-14 | Connecting structure of valve body and valve cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111350858A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201487265U (en) * | 2009-09-10 | 2010-05-26 | 方建生 | Full sealed zero leakage gate valve |
| CN104132159A (en) * | 2013-08-25 | 2014-11-05 | 浙江天瑞钢业有限公司 | Two-piece type ball valve and later machining technology |
| CN105422880A (en) * | 2016-01-25 | 2016-03-23 | 苏州巨瀚阀门有限公司 | Novel cutoff valve |
| CN206036247U (en) * | 2016-08-19 | 2017-03-22 | 焦作市澧通管业有限公司 | Long -life stop valve |
| KR20190088858A (en) * | 2018-01-19 | 2019-07-29 | 이승재 | Manual valve driving device |
| CN110259960A (en) * | 2019-06-24 | 2019-09-20 | 徐州华正铸业有限公司 | A kind of explosion-proof heating gas stop valve for bag-type dust |
-
2020
- 2020-04-14 CN CN202010288334.9A patent/CN111350858A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201487265U (en) * | 2009-09-10 | 2010-05-26 | 方建生 | Full sealed zero leakage gate valve |
| CN104132159A (en) * | 2013-08-25 | 2014-11-05 | 浙江天瑞钢业有限公司 | Two-piece type ball valve and later machining technology |
| CN105422880A (en) * | 2016-01-25 | 2016-03-23 | 苏州巨瀚阀门有限公司 | Novel cutoff valve |
| CN206036247U (en) * | 2016-08-19 | 2017-03-22 | 焦作市澧通管业有限公司 | Long -life stop valve |
| KR20190088858A (en) * | 2018-01-19 | 2019-07-29 | 이승재 | Manual valve driving device |
| CN110259960A (en) * | 2019-06-24 | 2019-09-20 | 徐州华正铸业有限公司 | A kind of explosion-proof heating gas stop valve for bag-type dust |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202531869U (en) | Flexible-seal dual-valve-seat plunger adjusting valve | |
| CN207300746U (en) | A kind of Steel Tube Special sealing device for water pressure test | |
| CN208670101U (en) | A kind of pneumatic diaphragm control valve | |
| CN205260244U (en) | Small -size acidizing fracturing plunger pump | |
| CN111350858A (en) | Connecting structure of valve body and valve cover | |
| CN111504545A (en) | Direction-adjustable self-closing pressure gauge valve | |
| CN201434173Y (en) | Super-high pressure quick connector | |
| US20050258387A1 (en) | Dual chamber orifice fitting plate support | |
| CN206175697U (en) | Threaded connection gate valve of flexible pipe of magnetic force control tape | |
| CN205715715U (en) | A kind of core assembly | |
| CN205309877U (en) | Axle pipe part from centering clamping device | |
| CN208204022U (en) | A kind of needle valve | |
| CN117570215A (en) | High-safety gate valve | |
| CN219317295U (en) | Reverse-opening cartridge valve core | |
| CN114658866B (en) | Durable quick-mounting butterfly valve and use method thereof | |
| CN213629101U (en) | Large-traffic pilot-operated type plane stop valve | |
| CN210509795U (en) | Locking hydraulic cylinder | |
| CN211875118U (en) | Right-angle corrugated pipe stop valve with switch locking structure | |
| CN212672549U (en) | Leakage-free bellows ball valve operating rod device | |
| CN206129781U (en) | Rotary clamping hydraulic means | |
| CN215635331U (en) | Two-way sealing mechanism of deep sea high pressure valve gate valve rod | |
| CN201875168U (en) | Multifunctional anti-theft valve | |
| CN221591824U (en) | Hard seal vacuumizing ball valve | |
| CN221034249U (en) | Anti-misoperation rising stem gate valve | |
| CN219954368U (en) | Valve pipeline sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200630 |
|
| WD01 | Invention patent application deemed withdrawn after publication |