CN215059631U - Single-disk-root double-gate plate structure of gapless gate valve - Google Patents
Single-disk-root double-gate plate structure of gapless gate valve Download PDFInfo
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- CN215059631U CN215059631U CN202120494880.8U CN202120494880U CN215059631U CN 215059631 U CN215059631 U CN 215059631U CN 202120494880 U CN202120494880 U CN 202120494880U CN 215059631 U CN215059631 U CN 215059631U
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- Prior art keywords
- gate
- valve body
- gapless
- gate valve
- sealing
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- 238000012856 packing Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 36
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model provides a two flashboard structures of single packing of zero clearance gate valve, which comprises a valve body, the inside of valve body is provided with control assembly, control assembly includes the closing plate, the closing plate is connected in the outside top of valve body, the top of closing plate is connected with the carousel, the inside intermediate position of closing plate is connected with the control lever, the outside cover of control lever of carousel is equipped with the packing, the outside cover of control lever is equipped with the wedge cover, the outside bottom cover of wedge cover is equipped with the connecting box, the intermediate position of the inside bottom of connecting box is connected with flexible subassembly, flexible subassembly includes the mounting box, the intermediate position of the inside top of mounting box and bottom is connected with the threaded rod, the outside both ends of threaded rod all overlap and are equipped with the movable block, the both ends of two movable blocks all articulate through the connecting rod has the connecting plate, the one end of two connecting plates all is connected with sealed flashboard. The utility model discloses a screw rod control flashboard open and close, has avoidd the rupture risk when traditional gate valve is opened and close, has prolonged the life of equipment.
Description
Technical Field
The utility model mainly relates to the technical field of valves, specifically be a single packing of zero clearance gate valve is two flashboard structures.
Background
The gate valve is an opening and closing piece gate plate, the moving direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled, the gate valve is sealed through contact of a valve seat and the gate plate, and usually, metal materials are deposited on a sealing surface to increase the wear resistance, such as 1Cr13, STL6, stainless steel and the like.
According to the pneumatic zero clearance gate valve that patent document (publication number CN211315171U) provided, including the hole, the hole is processed on the gate valve, the upper and lower both ends of valve body pass through outside bolt respectively with valve gap and closing cap fixed connection, the equal rigid coupling in the inner chamber left and right sides of valve body has the disk seat, the inboard laminating of disk seat has the flashboard, the top rigid coupling of flashboard has the valve rod, the valve rod runs through the valve gap. This pneumatic zero clearance gate valve, through the closing cap, first recess, the connection cooperation of flashboard and disk seat, avoid dregs to block the flashboard and descend, cause the flashboard to descend can not the assigned position condition, through the connection cooperation of packing and cushion, avoid the gate valve to open the condition that the material of back transport can flow through upper end work piece connection space, through the thread bush, the gear, the straight-bar, the cooperation of connecting of straight piece and second recess, after avoiding the cylinder to go wrong, can not carry out the switch gate valve, cause the condition of unnecessary loss.
The existing gate valve is poor in sealing performance, mostly only adopts a wedge-shaped structure, and is not easy to maintain after being damaged, so that the problem is solved by designing a single-disk-root double-gate-plate structure of a gapless gate valve.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a double-gate plate structure of single packing of zero clearance gate valve for solve the technical problem who proposes among the above-mentioned background art.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
a single-packing double-gate plate structure of a gapless gate valve comprises a valve body, wherein a valve groove is formed in the middle position of the bottom end inside the valve body, a control assembly is arranged inside the valve body and comprises a sealing plate and a connecting box, the sealing plate is connected to the top end of the outside of the valve body, a rotary disc is connected to the top end of the sealing plate, a control rod is connected to the middle position of the inside of the sealing plate and extends into the inside of the valve body, a packing is sleeved outside the control rod inside the rotary disc, a wedge-shaped sleeve is sleeved outside the control rod, a connecting box is sleeved at the bottom end of the outside of the wedge-shaped sleeve, and a telescopic assembly is connected to the middle position of the bottom end inside the connecting box;
the telescopic component comprises a mounting box, a threaded rod is connected to the middle position of the top end and the bottom end inside the mounting box, movable blocks are sleeved on the upper end and the lower end of the threaded rod, two movable blocks are hinged to two ends of each movable block through connecting rods, a sealing flashboard is connected to one end of each connecting plate, the threaded rod is rotated by rotating the rotary disc, and therefore the two movable blocks move oppositely relatively, sealing blockage is achieved by the aid of the telescopic function of the sealing flashboard, the control rod drives the connecting box to lift, and the opening and closing functions of the gate valve are achieved.
Preferably, the top and the bottom of threaded rod all are through bearing and mounting box and be the rotation and be connected to guarantee the rotation function of threaded rod.
Preferably, the upper end and the lower end of the outer part of the threaded rod are symmetrically provided with external threads in opposite directions relative to the central position, so that the two moving blocks can move oppositely.
Preferably, the top of two the adjacent one side of connecting plate and the outside bottom of wedge cover all are provided with the arch and are the wedge structure to further increase the sealed degree of sealed flashboard and valve body.
Preferably, the limiting grooves are formed in two sides of the interior of the valve body, the limiting blocks are arranged in the limiting grooves and connected with two sides of the wedge-shaped sleeve correspondingly, and therefore it is guaranteed that the wedge-shaped sleeve can slide vertically and cannot rotate along with the control rod.
Preferably, the both ends of valve body outside all are connected with the connecting pipe, two the equal annular set up screw hole in outside of connecting pipe, two the one end of connecting pipe all is connected with the screwed pipe to make things convenient for the connection installation of gate valve.
Preferably, two the seal groove has all been seted up to the inside of connecting pipe, two the inside of seal groove all is connected with fills the packing to guarantee the leakproofness of junction, avoid leaking.
Compared with the prior art, the beneficial effects of the utility model are that:
when the gate valve is closed to needs, rotatory carousel makes the control lever rotate, make the vertical slip of wedge cover, the simultaneous control lever drives the threaded rod and rotates, make two movable blocks move to the threaded rod intermediate position, make the connecting rod rotate thereupon and exert pressure to two sealed flashboards, make two sealed flashboards paste tightly with the valve body inner wall, sealed flashboard inserts the inside both ends that cut off the gate valve of valve inslot simultaneously, when the gate valve is opened to needs, the reverse rotation carousel can, through opening and close of threaded rod control flashboard, the rupture risk that traditional gate valve opened and close the existence has been avoidd, the service life of equipment has been prolonged.
The present invention will be explained in detail with reference to the drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic front view of the cross-sectional structure of the present invention;
FIG. 3 is an enlarged view of area B of FIG. 2;
fig. 4 is an enlarged view of region a in fig. 1.
In the figure: 1. a valve body; 2. a connecting pipe; 21. a threaded hole; 22. a threaded pipe; 23. a sealing groove; 3. a control component; 31. a wedge-shaped sleeve; 32. a control lever; 33. a turntable; 34. a sealing plate; 35. a limiting groove; 36. a limiting block; 37. sealing the gate plate; 38. a telescoping assembly; 381. mounting a box; 382. a threaded rod; 383. a moving block; 384. a connecting rod; 385. a connecting plate; 39. A connection box; 4. a valve spool; 5. and (6) filling the packing.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1-4, a single-packing double-gate structure of a gapless gate valve, includes a valve body 1, and is characterized in that two ends of the outer portion of the valve body 1 are connected with connecting pipes 2, threaded holes 21 are annularly formed on the outer portions of the two connecting pipes 2, one ends of the two connecting pipes 2 are connected with threaded pipes 22, so as to facilitate the connection and installation of the gate valve, sealing grooves 23 are formed on the inner portions of the two connecting pipes 2, packing packings 5 are connected to the inner portions of the two sealing grooves 23, so as to ensure the sealing performance of the connection and avoid leakage, a valve groove 4 is formed in the middle position of the bottom end of the inner portion of the valve body 1, a control assembly 3 is disposed in the inner portion of the valve body 1, the control assembly 3 includes a sealing plate 34 and a connection box 39, the sealing plate 34 is connected to the top end of the outer portion of the valve body 1, the top end of the sealing plate 34 is connected with a rotary disc 33, a control rod 32 is connected to the middle position of the inner portion of the sealing plate 34 and extends to the inner portion of the valve body 1, the packing 5 is sleeved outside the control rod 32 inside the rotary disc 33, the wedge sleeve 31 is sleeved outside the control rod 32, the control rod 32 is in threaded connection with the wedge sleeve 31, the limiting grooves 35 are formed in two sides inside the valve body 1, the limiting blocks 36 are mounted inside the two limiting grooves 35, the two limiting blocks 36 are correspondingly connected with two sides of the wedge sleeve 31, so that the wedge sleeve 31 is guaranteed to vertically slide and cannot rotate along with the control rod 32, the connecting box 39 is sleeved at the bottom end outside the wedge sleeve 31, and the telescopic assembly 38 is connected to the middle position of the bottom end inside the connecting box 39;
the telescopic assembly 38 comprises a mounting box 381, a threaded rod 382 is connected to the middle position of the top end and the bottom end inside the mounting box 381, the top end and the bottom end of the threaded rod 382 are rotatably connected with the mounting box 381 through bearings, so that the rotating function of the threaded rod 382 is ensured, moving blocks 383 are sleeved on the upper end and the lower end outside the threaded rod 382, external threads in opposite directions are symmetrically arranged on the upper end and the lower end outside the threaded rod 382 about a central position, so that the two moving blocks 383 realize opposite movement, connecting plates 385 are hinged to the two ends of the two moving blocks 383 through connecting rods 384, sealing flashboards 37 are connected to one ends of the two connecting plates 385, protrusions are arranged on the top ends of the adjacent sides of the two connecting plates 385 and the bottom end outside the wedge-shaped sleeve 31, and are wedge-shaped structures, so that the sealing degree of the sealing flashboards 37 and the valve body 1 is further increased, and the threaded rod 382 is rotated by rotating the rotary table 33, therefore, the two moving blocks 383 can move oppositely, the sealing and blocking can be completed by the telescopic function of the sealing flashboard 37, and meanwhile, the control rod 32 drives the connecting box 39 to ascend and descend, so that the opening and closing functions of the gate valve can be realized.
The utility model discloses a concrete operation as follows:
when the gate valve needs to be closed, the control rod 32 is rotated by the rotating disc 33, the wedge sleeve 31 vertically slides downwards under the action of the limiting block 36 and is inserted into the two connecting plates 385 to form a wedge-shaped structure, meanwhile, the control rod 32 drives the threaded rod 382 to rotate, the two moving blocks 383 move towards the middle position of the threaded rod 382, the connecting rod 384 rotates along with the connecting rod and applies pressure to the two sealing flashboards 37, the two sealing flashboards 37 are attached to the inner wall of the valve body 1, meanwhile, the sealing flashboards 37 are inserted into the valve groove 4 to block two ends of the gate valve, the closing function of the gate valve is achieved, when the gate valve needs to be opened, the rotating disc 33 rotates in the opposite direction to enable the wedge sleeve 31 to slide upwards and drive the connecting box 39 and the sealing flashboards 37 to move upwards, meanwhile, the sealing flashboards 37 contract inwards along with the movement of the moving blocks 383 and do not contact with the valve body 1, and the opening function of the gate valve is achieved.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.
Claims (7)
1. The single-packing double-gate plate structure of the gapless gate valve comprises a valve body (1) and is characterized in that a valve groove (4) is formed in the middle position of the bottom end inside the valve body (1), a control assembly (3) is arranged inside the valve body (1), the control assembly (3) comprises a sealing plate (34) and a connecting box (39), the sealing plate (34) is connected to the top end of the outside of the valve body (1), a rotary plate (33) is connected to the top end of the sealing plate (34), a control rod (32) is connected to the middle position inside the sealing plate (34) and extends into the inside of the valve body (1), a packing (5) is sleeved outside the control rod (32) inside the rotary plate (33), a wedge-shaped sleeve (31) is sleeved outside the control rod (32), the connecting box (39) is sleeved outside the bottom end of the wedge-shaped sleeve (31), and a telescopic assembly (38) is connected to the middle position of the bottom end inside the connecting box (39), the telescopic assembly (38) comprises a mounting box (381), a threaded rod (382) is connected to the middle position of the top end and the bottom end inside the mounting box (381), moving blocks (383) are sleeved on the upper end and the lower end of the outside of the threaded rod (382), two ends of each moving block (383) are hinged to a connecting plate (385) through connecting rods (384), and one end of each connecting plate (385) is connected with a sealing flashboard (37).
2. The single-disk double-gate plate structure of a gapless gate valve according to claim 1, wherein the top end and the bottom end of the threaded rod (382) are rotatably connected with the mounting box (381) through bearings.
3. The single disk double gate plate structure of a gapless gate valve according to claim 1, wherein the outer upper and lower ends of the threaded rod (382) are symmetrically provided with external threads in opposite directions with respect to a central position.
4. The single-disk double-gate plate structure of a gapless gate valve according to claim 1, wherein the top end of the adjacent side of the two connecting plates (385) and the bottom end of the outer part of the wedge sleeve (31) are provided with protrusions and are in a wedge structure.
5. The single-disk double-gate plate structure of the gapless gate valve according to claim 1, wherein two limiting grooves (35) are formed in two sides of the inside of the valve body (1), limiting blocks (36) are mounted in the two limiting grooves (35), and the two limiting blocks (36) are correspondingly connected with two sides of the wedge sleeve (31).
6. The single-disk double-gate plate structure of the gapless gate valve is characterized in that connecting pipes (2) are connected to two ends of the outer portion of the valve body (1), threaded holes (21) are annularly formed in the outer portions of the two connecting pipes (2), and a threaded pipe (22) is connected to one end of each of the two connecting pipes (2).
7. The single-packing double-gate plate structure of the gapless gate valve according to claim 6, wherein a sealing groove (23) is formed inside each of the two connecting pipes (2), and a packing (5) is connected inside each of the two sealing grooves (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120494880.8U CN215059631U (en) | 2021-03-08 | 2021-03-08 | Single-disk-root double-gate plate structure of gapless gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120494880.8U CN215059631U (en) | 2021-03-08 | 2021-03-08 | Single-disk-root double-gate plate structure of gapless gate valve |
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| Publication Number | Publication Date |
|---|---|
| CN215059631U true CN215059631U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120494880.8U Expired - Fee Related CN215059631U (en) | 2021-03-08 | 2021-03-08 | Single-disk-root double-gate plate structure of gapless gate valve |
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| Country | Link |
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| CN (1) | CN215059631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405712A (en) * | 2022-08-26 | 2022-11-29 | 湖北洪城通用机械有限公司 | Rectangular vacuum quick cut-off valve |
-
2021
- 2021-03-08 CN CN202120494880.8U patent/CN215059631U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405712A (en) * | 2022-08-26 | 2022-11-29 | 湖北洪城通用机械有限公司 | Rectangular vacuum quick cut-off valve |
| CN115405712B (en) * | 2022-08-26 | 2023-12-12 | 湖北洪城通用机械有限公司 | Rectangular vacuum quick cut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |