CN212745109U - Double-gate wear-resistant valve - Google Patents
Double-gate wear-resistant valve Download PDFInfo
- Publication number
- CN212745109U CN212745109U CN202021722004.8U CN202021722004U CN212745109U CN 212745109 U CN212745109 U CN 212745109U CN 202021722004 U CN202021722004 U CN 202021722004U CN 212745109 U CN212745109 U CN 212745109U
- Authority
- CN
- China
- Prior art keywords
- flashboard
- valve
- connecting piece
- disk seat
- last
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims description 31
- 230000009977 dual effect Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 230000008021 deposition Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000428 dust Substances 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000005498 polishing Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Images
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model belongs to the technical field of the technique of valve and specifically relates to a double-gate wear-resisting valve is related to, including the disk seat, the disk seat comprises last disk seat and lower disk seat two parts, go up the disk seat and be provided with flashboard and lower flashboard down between the disk seat, it is sealed vice to form between last disk seat and the last flashboard, upward be provided with the connecting piece between flashboard and the lower flashboard, the one end of connecting piece is provided with drive arrangement, a bevel connection has been seted up to one side that is close to drive arrangement on the disk seat down for a passageway has between disk seat and the lower flashboard down. This application has and can ensure that the gate valve is difficult to the deposition in the use, the valve pocket is not blockked up the effect.
Description
Technical Field
The application relates to the technical field of valves, in particular to a double-gate wear-resistant valve.
Background
A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate of a medium (liquid, gas, or powder) in a pipe or equipment by flowing or stopping the medium.
At present, the structure of a double-gate valve usually comprises a valve body and an upper gate and a lower gate, wherein the valve body consists of an upper valve body, a middle valve body and a lower valve seat, one end of the middle valve body is directly connected with a cylinder, the upper gate and the lower gate are fixedly connected on a push handle, and the push handle is directly connected with a piston rod in the cylinder. During operation, the piston rod drives the upper and lower flashboards to move axially through the push handle, and the conveying pipeline is opened and closed.
With respect to the related art among the above, there are the following drawbacks: conveying media such as fly ash and the like are easy to deposit in the valve cavity, particularly, when the valve is closed, the deposit in the valve cavity is less or more, and then the deposit is impacted and compacted by the moving part, so that the whole valve cavity is blocked, and the valve cannot act.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that a valve cavity is blocked due to easy dust accumulation in the use process of a gate valve, the application provides a double-gate wear-resistant valve.
The double-gate wear-resistant valve comprises a valve seat, wherein the valve seat consists of an upper valve seat and a lower valve seat, an upper gate plate and a lower gate plate are arranged between the upper valve seat and the lower valve seat, a sealing pair is formed between the upper valve seat and the upper gate plate, a connecting piece is arranged between the upper gate plate and the lower gate plate, a driving device is arranged at one end of the connecting piece, and an inclined opening is formed in one side, close to the driving device, of the lower valve seat, so that a channel is formed between the lower valve seat and the lower valve seat.
By adopting the technical scheme, the sealing pair formed between the upper valve seat and the upper gate plate adopts single-sided sealing of the double-gate plate, so that the valve is suitable for single-sided stress, but is easy to block dust, and good sealing effect between the upper valve seat and the upper gate plate can be ensured.
The axial motion of drive arrangement drive connecting piece for mutual butt between last flashboard and last valve seat and lower flashboard and the lower disk seat at connecting piece both ends, make the gate valve close, the oblique mouth design on the lower disk seat makes and has a passageway between lower valve plate and the lower disk seat, can effectually prevent that the valve switch that causes because of long-term deposition is not in place in the valve pocket, also or phenomenon such as jam, ensures that the gate valve is in the use, and difficult deposition in the valve pocket avoids appearing the valve pocket and is blockked up.
Preferably, the inside hollow setting of connecting piece, the inside cover of connecting piece is equipped with the spring, the both ends of spring respectively with last flashboard and lower flashboard butt.
Through adopting above-mentioned technical scheme, the inside hollow setting of connecting piece, establish the spring through the inside cover at the connecting piece, the both ends and last flashboard and the lower flashboard butt of spring, the spring makes flashboard and lower flashboard press the leakproofness of guaranteeing the gate valve to the disk seat all the time, allow the flashboard to remove in the perpendicular upper and lower direction again, this helps compensating valve part's expend with heat and contract with cold, and can overcome any back pressure change to sealed influence and prevent that the granule medium from getting into between the two sealed faces, ensure the gate valve in the use, the difficult deposition in the valve pocket, avoid the valve pocket to be blockked up.
Preferably, the both ends of spring all are provided with the butt piece, butt piece and last flashboard and lower flashboard butt.
Through adopting above-mentioned technical scheme, the both ends of spring are provided with the butt piece, through butt between butt piece and last flashboard and the lower flashboard, ensure that the spring can press last flashboard and lower flashboard to the disk seat to guarantee the leakproofness of gate valve.
Preferably, the side wall of the upper flashboard far away from the upper valve seat is provided with a groove, and one end of the connecting piece, which is close to the upper valve plate, is provided with a bulge matched with the groove, so that the upper flashboard is rotatably connected with the connecting piece.
Through adopting above-mentioned technical scheme, go up the recess that sets up on the flashboard and connect the bellied cooperation that sets up for rotatable coupling between last flashboard and the connecting piece, at the in-process of opening and close of gate valve, at the in-process of opening and close, go up the flashboard and can produce the rotation, make to produce grinding, polishing effect between the sealed face, ensure that the gate valve is in the use, the difficult deposition in the valve pocket avoids the valve pocket to be blockked up.
Preferably, the peripheral side wall of the connecting piece near one end of the upper gate plate extends outwards to form an extending block, and the extending block is used for increasing the contact area between the connecting piece and the upper gate plate.
Through adopting above-mentioned technical scheme, the epitaxial piece that sets up on the week lateral wall of connecting piece can increase the area of contact between connecting piece and the last flashboard, and the increase gate valve is opening and close the in-process, goes up the trend of flashboard rotation, ensures that the gate valve is in the use, and the difficult deposition in the valve pocket avoids the valve pocket to be blockked up.
Preferably, go up the flashboard outer edge and be provided with first sealing washer, upward be provided with the second sealing washer on the disk seat, when the gate valve was closed, first sealing washer with the second sealing washer can laminate completely.
Through adopting above-mentioned technical scheme, first sealing washer can laminate completely with the second sealing washer, can ensure that the gate valve is closing the back, and the sealing performance between last flashboard and the last valve seat is good.
Preferably, the driving device is provided as a cylinder, the cylinder is arranged on one side of the valve seat, and the end part of the output shaft of the cylinder is in threaded connection with the connecting piece.
Through adopting above-mentioned technical scheme, drive arrangement sets up to the cylinder, and the principle and the simple structure of cylinder are easily installed and are maintained, and is not high to user's requirement, can ensure the stability of gate valve work.
Preferably, the driving device is a hydraulic cylinder, the hydraulic cylinder is arranged on one side of the valve seat, and the end part of an output shaft of the hydraulic cylinder is in threaded connection with the connecting piece.
Through adopting above-mentioned technical scheme, drive arrangement sets up to the cylinder, and the simple structure of pneumatic cylinder, reliable operation when using it to realize reciprocating motion can remove decelerator from to there is not transmission clearance, and the motion is steady, can ensure that the stability of gate valve work goes on.
In summary, the present application includes at least one of the following beneficial technical effects:
the sealing pair formed between the upper valve seat and the upper gate plate adopts double-gate plate single-side sealing, is suitable for the occasions with single-side stress but easy ash blockage, and can ensure that the sealing effect between the upper valve seat and the upper gate plate is good;
the inclined opening on the lower valve seat is designed, so that a channel is formed between the lower valve seat and the lower valve seat, the phenomena of improper opening and closing or jamming and the like of the valve caused by long-term dust accumulation in the valve cavity can be effectively prevented, the dust accumulation in the valve cavity is prevented in the use process of the gate valve, and the valve cavity is prevented from being blocked;
the two ends of the spring are abutted to the upper gate plate and the lower gate plate, the spring always enables the upper gate plate and the lower gate plate to be pressed to the valve seat to ensure the sealing performance of the gate valve, and the gate plate is allowed to move vertically, so that the expansion caused by heat and the contraction caused by cold of a valve part are compensated, the influence of any back pressure change on sealing can be overcome, particle media are prevented from entering between two sealing surfaces, the gate valve is ensured to be not easy to deposit dust in the valve cavity in the using process, and the valve cavity is prevented from being blocked.
Drawings
FIG. 1 is a front view of a dual gate wear valve of example 1 of the present application;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic exploded view of the highlighted connection of example 1 of the present application;
FIG. 4 is an exploded view of the embossed groove of example 1 of the present application;
fig. 5 is a front view of the double gate wear valve of embodiment 2 of the present application.
Reference numerals: 1. an upper valve seat; 2. a lower valve seat; 3. an upper gate plate; 4. a lower gate plate; 5. a first seal ring; 6. a second seal ring; 7. a bevel opening; 8. a connecting member; 9. a spring; 10. a butting block; 11. a groove; 12. a protrusion; 13. an epitaxial block; 14. a cylinder; 15. and a hydraulic cylinder.
Detailed Description
The present invention will be described in further detail with reference to fig. 1 to 5.
The first embodiment is as follows:
the embodiment of the application discloses double-gate wear-resisting valve. Referring to fig. 1, the double gate wear valve comprises a valve seat consisting of two parts, an upper valve seat 1 and a lower valve seat 2.
Referring to fig. 2, an upper gate plate 3 and a lower gate plate 4 are arranged between an upper valve seat 1 and a lower valve seat 2, a first sealing ring 5 is fixedly bonded to the outer edge of the upper gate plate 3, a second sealing ring 6 is fixedly bonded to the upper valve seat 1, and the first sealing ring 5 and the second sealing ring 6 are both annular. When the gate valve is closed, the surfaces of the first sealing ring 5 and the second sealing ring 6 which are close to each other can be completely attached, so that a sealing pair is formed between the upper valve seat 1 and the upper gate plate 3, and the sealing effect of the gate valve is good.
One side of the lower valve seat 2 close to the driving device is provided with an oblique opening 7, so that a channel is formed between the lower valve seat 2 and the lower gate plate 4, when the gate valve is closed, a channel for materials to pass is formed between the lower valve seat 2 and the lower gate plate 4, and the phenomena of improper opening and closing or jamming and the like of the valve caused by long-term dust accumulation in the valve cavity can be effectively prevented.
Referring to fig. 3 and 4, a connecting member 8 is disposed between the upper gate plate 3 and the lower gate plate 4, the connecting member 8 is hollow, and the cross section of the connecting member 8 is T-shaped. The inside cover of connecting piece 8 is equipped with spring 9, and spring 9 sets up with connecting piece 8 is coaxial. Both ends of spring 9 all welded fastening have butt piece 10, and butt piece 10 is cylindricly, and the diameter size of butt ring is greater than the external diameter size of spring 9. Wherein, the two abutting blocks 10 abut against the upper flashboard 3 and the lower flashboard 4 respectively.
Referring to fig. 2 and 4, a groove 11 is formed in the side wall of the upper shutter 3 away from the upper valve seat 1, and the groove 11 is cylindrical. Correspondingly, a protrusion 12 is integrally formed at one end of the connecting piece 8 close to the upper valve plate, and the protrusion 12 is matched with the groove 11, so that the upper flashboard 3 is rotatably connected with the connecting piece 8. In the opening and closing process of the gate valve, the upper gate plate 3 can rotate in the opening and closing process, so that grinding and polishing effects are generated between sealing surfaces.
Wherein, the peripheral lateral wall that is close to the one end of last flashboard 3 on the connecting piece 8 outwards extends has epitaxial piece 13, and epitaxial piece 13 and connecting piece 8 integrated into one piece, epitaxial piece 13 have two, and two outer along the piece along the axis direction symmetry setting of connecting piece 8. The extension block 13 can increase the contact area between the connection member 8 and the upper shutter 3.
Referring to fig. 2, a driving device is fixedly connected to one end of the connecting member 8, and the driving device is configured as a cylinder 14. The cylinder 14 is welded and fixed on one side of the valve seat, and the end part of the output shaft of the cylinder 14 is in threaded connection with the connecting piece 8.
Example two:
referring to fig. 4 and 5, the difference from the first embodiment is that the driving device in this embodiment is provided with a hydraulic cylinder 15, the hydraulic cylinder 15 is welded and fixed on one side of the valve seat, and the end of the output shaft of the hydraulic cylinder 15 is screwed with the connecting piece 8.
The implementation principle of a double-gate wear-resistant valve of the embodiment of the application is as follows: the driving device drives the connecting piece 8 to move axially, so that the upper flashboards 3 and the upper valve seat 1 at the two ends of the connecting piece 8 and the lower flashboards 4 and the lower valve seat 2 are mutually abutted, and the gate valve is closed; a spring 9 is sleeved in the connecting piece 8, two ends of the spring 9 are abutted to the upper gate plate 3 and the lower gate plate 4, and the spring 9 always enables the upper gate plate 3 and the lower gate plate 4 to press the valve seat to ensure the sealing performance of the gate valve;
go up recess 11 that sets up on flashboard 3 and connect the cooperation of the arch 12 that sets up on for rotatable coupling between last flashboard 3 and the connecting piece 8, at the in-process of opening and close of gate valve, at the in-process of opening and close, go up flashboard 3 and can produce the rotation, make to produce between the sealed face grind, the polishing effect, can effectually prevent that the valve switch that causes because of long-term deposition in the valve pocket is not in place, also or phenomenon such as jam, ensure that the gate valve is in the use, the difficult deposition in the valve pocket, avoid appearing the valve pocket and be blockked up.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a double-gate wear-resisting valve, includes the valve seat, the valve seat comprises upper valve seat (1) and lower valve seat (2) two parts, its characterized in that: go up disk seat (1) and be provided with between disk seat (2) down flashboard (3) and flashboard (4) down, it is vice to form sealed between disk seat (1) and last flashboard (3), it is provided with connecting piece (8) to go up between flashboard (3) and lower flashboard (4), the one end of connecting piece (8) is provided with drive arrangement, one bevel connection (7) have been seted up to one side that is close to drive arrangement on disk seat (2) down for a passageway has between disk seat (2) and lower flashboard (4) down.
2. A dual gate wear resistant valve as defined in claim 1 wherein: the inside hollow setting of connecting piece (8), the inside cover of connecting piece (8) is equipped with spring (9), the both ends of spring (9) respectively with last flashboard (3) and flashboard (4) butt down.
3. A dual gate wear resistant valve as defined in claim 2 wherein: the two ends of the spring (9) are provided with abutting blocks (10), and the abutting blocks (10) are abutted to the upper flashboard (3) and the lower flashboard (4).
4. A dual gate wear resistant valve as defined in claim 3 wherein: go up the lateral wall of keeping away from last disk seat (1) on flashboard (3) and be provided with recess (11), the one end that is close to last valve plate on connecting piece (8) is provided with protruding (12) with recess (11) complex, makes rotatable coupling between last flashboard (3) and connecting piece (8).
5. A dual gate wear resistant valve as defined in claim 4 wherein: the side wall that is close to the week of the one end of last flashboard (3) on connecting piece (8) extends outward and is provided with epitaxial block (13), epitaxial block (13) are used for increasing the area of contact between connecting piece (8) and last flashboard (3).
6. A dual gate wear resistant valve as defined in claim 1 wherein: go up flashboard (3) outer edge and be provided with first sealing washer (5), go up and be provided with second sealing washer (6) on disk seat (1), when the gate valve was closed, first sealing washer (5) with second sealing washer (6) can laminate completely.
7. A dual gate wear resistant valve as defined in claim 1 wherein: the driving device is provided with an air cylinder (14), the air cylinder (14) is arranged on one side of the valve seat, and the end part of an output shaft of the air cylinder (14) is in threaded connection with the connecting piece (8).
8. A dual gate wear resistant valve as defined in claim 1 wherein: the driving device is a hydraulic cylinder (15), the hydraulic cylinder (15) is arranged on one side of the valve seat, and the end part of an output shaft of the hydraulic cylinder (15) is in threaded connection with the connecting piece (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021722004.8U CN212745109U (en) | 2020-08-17 | 2020-08-17 | Double-gate wear-resistant valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021722004.8U CN212745109U (en) | 2020-08-17 | 2020-08-17 | Double-gate wear-resistant valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212745109U true CN212745109U (en) | 2021-03-19 |
Family
ID=74988848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021722004.8U Expired - Fee Related CN212745109U (en) | 2020-08-17 | 2020-08-17 | Double-gate wear-resistant valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212745109U (en) |
-
2020
- 2020-08-17 CN CN202021722004.8U patent/CN212745109U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210566315U (en) | Elastic compensation type butterfly valve with movable valve seat | |
| CN105508720A (en) | Corrugated pipe stop valve for photo-thermal electricity generation fused salt | |
| CN212745109U (en) | Double-gate wear-resistant valve | |
| CN102966751A (en) | U-shaped ball valve for slurry mixing and ash discharging | |
| CN109139967A (en) | A kind of metal hard-sealing spherical surface valve | |
| CN103765061B (en) | The black box that a kind of bellows for rotary control valve encourages | |
| CN210088047U (en) | Magnetic repulsion force pressure-equalizing wear-resistant magnetic transmission driving wedge type parallel double-gate-plate gate valve | |
| CN115539652A (en) | Novel industrial butterfly valve structure | |
| CN214222036U (en) | Novel bidirectional flow rotary ball valve | |
| CN205479391U (en) | Two -way hard -sealed butterfly valve | |
| CN211423434U (en) | Cylindrical full-bore three-eccentric high-pressure wear-resistant ball valve | |
| CN212564467U (en) | Gate valve with quick mounting structure for natural gas conveying | |
| CN210920189U (en) | Hemisphere metal seal fixed ball valve | |
| CN113915368A (en) | Novel ultra-high temperature fixed ball valve | |
| CN203115129U (en) | Triple eccentric metallic seal butterfly valve | |
| CN208107191U (en) | A kind of horizontal emery wheel valve | |
| CN206368972U (en) | A kind of novel cutoff valve | |
| CN210739401U (en) | Three-eccentric bidirectional hard seal butterfly valve | |
| CN105736730A (en) | Anti-blocking and scouring-resistant stop valve | |
| CN215059608U (en) | Corrugated pipe flat gate valve | |
| CN216590020U (en) | Gate valve with combined valve cover | |
| CN209725263U (en) | A kind of differential pressure oil seal Wedge Gate Valves | |
| CN102486234B (en) | Throttling valve | |
| CN208935407U (en) | A kind of wearable valve | |
| AU718644B2 (en) | Valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |