CN205001540U - Double -gate plate structure of gate valve - Google Patents
Double -gate plate structure of gate valve Download PDFInfo
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- CN205001540U CN205001540U CN201520734295.5U CN201520734295U CN205001540U CN 205001540 U CN205001540 U CN 205001540U CN 201520734295 U CN201520734295 U CN 201520734295U CN 205001540 U CN205001540 U CN 205001540U
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- flashboard
- voussoir
- valve
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- valve body
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Abstract
The utility model discloses a double -gate plate structure of gate valve, including bottom, valve body and the disk seat of welding in the valve body, the double -gate plate structure still includes pair flashboard subassembly, the double -gate plate structure comprises left flashboard, right flashboard, ball, left voussoir and right voussoir, the inside guide way that is equipped with of valve body, the sealed face of left flashboard and right flashboard is connected with the valve seat seal face, and left and right flashboard outside both ends all are equipped with the direction muscle, and the direction muscle is installed in the guide way of valve body, the wedge face is processed into to left and right flashboard inboard to wedge off -plate side has the stopper, and the wedge all is processed into in left voussoir, the right voussoir outside, and upper portion offers the rectangle trompil, left voussoir, when right voussoir is put together, and two rectangle trompils form the rectangular channel that is used for installing the valve rod, the inboard of a left side voussoir, right voussoir all is equipped with half spherical groove, left voussoir, when right voussoir is put together, the inside spherical groove who is used for installing the ball that forms. The utility model has the advantages of good, the long service life of sealing performance of zero friction, valve between little, the sealed face of the valve power of opening and close.
Description
Technical field
The utility model relates to double-flashboard structure, particularly a kind of double-flashboard structure being applied to a kind of gate valve of the technical fields such as petrochemical industry, electric power, metering device.
Background technique
The flashboard of gate valve is generally Single disc structure, and this Single disc structure open and close torque is large, and often rub between flashboard and sealing surface of seat, easily cause valve leak, working life reduces greatly; And the maintenance of conventional single-shutter gate valve sealing surface needs special frock to ensure the angle on inclined-plane, this brings very large difficulty just to field maintenance valve; Therefore improve the working life of valve, be convenient to the focus that field maintenance has become user's concern.
Model utility content
The technical problems to be solved in the utility model be to provide a kind ofly have that hoisting capacity is little, between sealing surface without the double-flashboard structure of the gate valve of the advantages such as friction, long service life.
For achieving the above object, the technical solution of the utility model is as follows:
A double-flashboard structure for gate valve, the valve seat comprising bottom, valve body and be welded in valve body; Described double-flashboard structure also comprises a pair of flashboard assembly, and described double-flashboard structure is made up of left flashboard, right flashboard, ball, left voussoir and right voussoir; Described valve inner is provided with guiding groove, and described left flashboard is connected with sealing surface of seat with the sealing surface of right flashboard, and outside described left and right flashboard, two ends are equipped with guiding rib, and guiding rib is arranged in the guiding groove of valve body; Sphenoid surface is processed into inside left and right flashboard, and limited location block outside sphenoid surface, be all processed into wedge shape, and rectangle opening is offered on top outside described left voussoir, right voussoir, left voussoir, right wedge combinations together time, two rectangle openings form the rectangle groove for installing valve rod; The inner side of described left voussoir, right voussoir is equipped with semi-spherical grooves, left voussoir, right wedge combinations together time, the inner spherical groove formed for installing ball.
In an embodiment of the present utility model, described valve seat is cylindrical, and the endoporus sealing surface of valve seat is inclined-plane, and surface overlaying Stellite cemented carbide.
In an embodiment of the present utility model, described valve seat is coordinate with cylinder valve bore cylindrical, its inner seal surface build-up welding Stellite cemented carbide.
In an embodiment of the present utility model, be inclined-plane outside described left and right flashboard, and surface overlaying Stellite cemented carbide.
By technique scheme, the beneficial effects of the utility model are:
The utility model structure is simple, easy to use, have that hoisting capacity is little, between sealing surface without advantages such as friction, long service life.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model structural representation;
Numeral and the corresponding part title represented by letter in figure:
10, bottom 11, bolt 20, valve body 30, valve seat 40, left flashboard 50, right flashboard 60, ball 70, left voussoir 80, right voussoir 90, valve rod 100, rectangle groove 110, spherical groove.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Shown in Figure 1, the utility model discloses a kind of double-flashboard structure of gate valve, the valve seat 30 comprising bottom 10, valve body 20 and be welded in valve body, bottom 10 is connected by bolt 11 with valve body 20; Double-flashboard structure also comprises a pair of flashboard assembly, and double-flashboard structure is made up of left flashboard 40, right flashboard 50, ball 60, left voussoir 70 and right voussoir 80; Valve body 20 inside is provided with guiding groove (not shown in FIG.), left flashboard 40 is connected with valve seat 30 sealing surface with the sealing surface of right flashboard 50, outside left and right flashboard, two ends are equipped with guiding rib (not shown in FIG.), guiding rib is arranged in the guiding groove of valve body, and guiding rib is for ensureing that flashboard does not come off along sliding up and down in valve body guiding groove; Sphenoid surface is processed into inside left and right flashboard, and limited location block (not shown in FIG.) outside sphenoid surface, limiting stopper is used for preventing left and right voussoir from coming off; All be processed into wedge shape outside left voussoir 70, right voussoir 80, and rectangle opening is offered on top, left voussoir, right wedge combinations together time, two rectangle openings form the rectangle groove 100 for installing valve rod 90; The inner side of left voussoir 70, right voussoir 80 is equipped with semi-spherical grooves, left voussoir, right wedge combinations together time, the inner spherical groove 110 formed for installing ball.
Be provided with a cylinder valve bore (not shown in FIG.) in the utility model valve body 20, valve seat is welded in cylinder valve bore, and valve seat is coordinate with cylinder valve bore cylindrical, its inner seal surface build-up welding Stellite cemented carbide; Be inclined-plane outside left and right flashboard, and surface overlaying Stellite cemented carbide, valve seat is cylindrical, and the endoporus sealing surface of valve seat is inclined-plane, and surface overlaying Stellite cemented carbide.
Valve opening and closing functional realiey is as follows:
1) during valve opening, valve rod moves upward, under drive by left voussoir, right voussoir, ball, outside left and right voussoir, inclined-plane departs from inclined-plane in left and right flap, valve clack sealing surface and sealing surface of seat loosen and depart from, flashboard assembly, under the driving of valve rod, moves upward along guiding groove in valve body, valve opening;
2) during valve closing, valve rod moves downward, under the drive by left voussoir, right voussoir, ball, left and right flashboard moves downward, when bottom encountered by left and right flashboard, outside left and right voussoir, sealing surface of seat is close to, valve closing in the left and right ram seal face of slope driving.
Advantage of the present utility model is as follows:
1) open and close without friction: in valve opening and closing process, valve clack sealing surface and sealing surface of seat are only be close to and depart from, and there is no relative friction between the two, effectively can reduce the leakage that sealing surface causes because of destruction, greatly improve the sealability of valve.
2) field maintenance is convenient: the ball in double-flashboard assembly can well adjust angular error between valve clack sealing surface and sealing surface of seat, greatly reduces the difficulty of field maintenance.
3) long service life: left and right voussoir and left and right rams contact face are ramp structure, have wear compensation effect, and surface overlaying Stellite cemented carbide, can substantially increase the working life of valve.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a double-flashboard structure for gate valve, the valve seat comprising bottom, valve body and be welded in valve body; It is characterized in that, described double-flashboard structure also comprises a pair of flashboard assembly, and described double-flashboard structure is made up of left flashboard, right flashboard, ball, left voussoir and right voussoir; Described valve inner is provided with guiding groove, and described left flashboard is connected with sealing surface of seat with the sealing surface of right flashboard, and outside described left and right flashboard, two ends are equipped with guiding rib, and guiding rib is arranged in the guiding groove of valve body; Sphenoid surface is processed into inside left and right flashboard, and limited location block outside sphenoid surface, be all processed into wedge shape, and rectangle opening is offered on top outside described left voussoir, right voussoir, left voussoir, right wedge combinations together time, two rectangle openings form the rectangle groove for installing valve rod; The inner side of described left voussoir, right voussoir is equipped with semi-spherical grooves, left voussoir, right wedge combinations together time, the inner spherical groove formed for installing ball.
2. the double-flashboard structure of a kind of gate valve according to claim 1, is characterized in that, be provided with a cylinder valve bore in described valve body, described valve seat is welded in cylinder valve bore.
3. the double-flashboard structure of a kind of gate valve according to claim 2, is characterized in that, described valve seat is cylindrical, and the endoporus sealing surface of valve seat is inclined-plane, and surface overlaying Stellite cemented carbide.
4. the double-flashboard structure of a kind of gate valve according to claim 1, is characterized in that, is inclined-plane outside described left and right flashboard, and surface overlaying Stellite cemented carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734295.5U CN205001540U (en) | 2015-09-21 | 2015-09-21 | Double -gate plate structure of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734295.5U CN205001540U (en) | 2015-09-21 | 2015-09-21 | Double -gate plate structure of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001540U true CN205001540U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520734295.5U Active CN205001540U (en) | 2015-09-21 | 2015-09-21 | Double -gate plate structure of gate valve |
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| CN (1) | CN205001540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719040A (en) * | 2022-04-11 | 2022-07-08 | 浙江伯特利科技股份有限公司 | Flashboard of support-shrinkage type wedge gate valve and machining method thereof |
-
2015
- 2015-09-21 CN CN201520734295.5U patent/CN205001540U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719040A (en) * | 2022-04-11 | 2022-07-08 | 浙江伯特利科技股份有限公司 | Flashboard of support-shrinkage type wedge gate valve and machining method thereof |
| CN114719040B (en) * | 2022-04-11 | 2023-06-16 | 浙江伯特利科技股份有限公司 | Gate plate of telescopic wedge gate valve and processing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |