CN206320370U - Vacuum valve - Google Patents
Vacuum valve Download PDFInfo
- Publication number
- CN206320370U CN206320370U CN201621471285.8U CN201621471285U CN206320370U CN 206320370 U CN206320370 U CN 206320370U CN 201621471285 U CN201621471285 U CN 201621471285U CN 206320370 U CN206320370 U CN 206320370U
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- China
- Prior art keywords
- valve
- spacing
- fluid passage
- guide pad
- guide
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- 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.)
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Abstract
The utility model discloses a kind of vacuum valve, including valve body, the valve body is provided with fluid passage and the valve element in the fluid passage, the valve element is by valve rod and for controlling the valve plug of the fluid passage break-make to constitute, the horn mouth matched with the valve plug configurations is provided with the fluid passage, the valve plug is Matching installation in the frustum cone structure in the horn mouth, the path end face of the valve plug is connected with the valve rod, the port of export of the fluid passage is provided with elastic guide mechanism, the bigger diameter end face of the valve plug is fixedly connected with the telescopic end of the elastic guide mechanism, the valve rod is fixedly installed guide pad, the inwall of the fluid passage is provided with the spacing neck of guide pad of list structure, the guide pad is installed in the spacing neck of the guide pad and slidably.The utility model total is reliable and stable, it is to avoid vacuum valve is because long-term using easily there is situation about revealing, and service life is longer.
Description
Technical field
The utility model is related to a kind of valve, and in particular to a kind of Stability Analysis of Structures reliability and the longer vacuum of service life
Valve.
Background technology
Vacuum valve refers to that operating pressure is less than the valve of standard atmospheric pressure.Vacuum valve is usually arranged in pairs or groups with vavuum pump and used, profit
With vavuum pump so that the port of export of vacuum valve is in vacuum state, so that in the presence of atmospheric pressure, by gaseous state or liquid stream
Body is introduced from the entrance point of vacuum valve, so as to reach the purpose of pumping fluid.During vavuum pump is frequently pumped, vacuum valve
Valve element or fluid passage is blocked, or fluid passage is opened, in the process, due to the frequent impact between valve body,
Valve element may deviate original axial movement track to a certain extent so that may between valve element and fluid passage inwall
There is gap, and produce leakage.
Utility model content
The purpose of this utility model, which is that, provide a kind of vacuum valve to solve the above problems.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of vacuum valve, including valve body, the valve body are provided with fluid passage and the valve element in the fluid passage,
The valve element by valve rod and for controlling the valve plug of the fluid passage break-make to constitute, be provided with the fluid passage with it is described
The horn mouth that valve plug configurations match, the valve plug be Matching installation in the frustum cone structure in the horn mouth, the valve plug
Path end face is connected with the valve rod, and the port of export of the fluid passage is provided with elastic guide mechanism, the big footpath of the valve plug
End face is fixedly connected with the telescopic end of the elastic guide mechanism, and the valve rod is fixedly installed guide pad, the fluid passage
Inwall be provided with the spacing neck of guide pad of list structure, the guide pad is installed in the spacing neck of the guide pad and can
Slide.
Further, the valve plug outer layer covers have rubber sealant.
Further, the elastic guide mechanism include spacing guide cylinder, be arranged in the spacing guide cylinder spring,
The spacing guide post in the spacing guide cylinder and being axially movable is enclosed within, the spacing guide cylinder is that one end is closed and the other end
The tubular structure of opening, one end of the spring is resisted against the blind end of the spacing guide cylinder and the other end is squeezed in the limit
The inner of position guide post, the outer end of the spacing guide post is fixedly connected with the valve plug.
Further, the spacing guide cylinder, the spacing guide post, the valve plug, the valve rod and the fluid
The axis of passage is respectively positioned on same straight line.
Further, the spacing guide cylinder is installed in the fluid passage by fixed mount, the fixed mount bag
Include connecting rod and threaded connection seat, the connecting rod and the inwall of the fluid passage fix, it is described be threadedly coupled seat with it is described
Connecting rod is fixedly connected, and the spacing guide cylinder is threadably secured to be threadedly coupled in seat in described, on the spacing guide cylinder
The nut for axially position is provided with, the nut is close to the threaded connection seat.
Further, the two ends of the guide pad are provided with branching block, the guide pad and the guide pad limiting card
It is provided with some spacing guiding steel balls between the inwall of groove, the inwall of the guide pad and the spacing neck of the guide pad is respectively provided with
Have for limiting the spacing spacing neck of steel ball for being oriented to steel ball.
Further, the branching block is triangular prism structure, the branching block two of which seamed edge and the guide pad
Laminating, three seamed edges of the branching block are vertical with the fluid passage.
The beneficial effects of the utility model are：
The utility model is provided with elastic guide mechanism in fluid passage for valve plug so that valve plug begins in motion process
It can be moved eventually along the axis of fluid passage, furthermore valve plug and the tubaeform mating structure in fluid passage so that valve plug
Be not in gap all the time between the inwall of fluid passage, the guide frame between valve rod and fluid passage inwall have matched valve plug
Motion so that valve rod is consistent with valve plug all the time to move in the same direction, total is reliable and stable, it is to avoid vacuum valve because using for a long time
Easily there is situation about revealing, service life is longer.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of vacuum valve described in the utility model；
Fig. 2 is the structural representation of guide pad described in the utility model；
Fig. 3 is the structural representation of fixed mount described in the utility model；
In figure：1- connecting rods, 2- valve bodies, 3- valve rods, 4- guide pads, the spacing guiding steel balls of 5-, 6- branching blocks, 7- steel balls limit
Position neck, the spacing neck of 8- guide pads, 9- valve plugs, the spacing guide posts of 10-, the spacing guide cylinders of 11-, 12- springs, 13- screw threads connect
Joint chair, 14- nuts, 15- fluid passages, the spacing neck of 16- steel balls.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, Figure 2 and Figure 3, the utility model includes valve body 2, and valve body 2 is provided with fluid passage 15 and positioned at stream
Valve element in body passage 15, valve element is by valve rod 3 and for controlling the valve plug 9 of the break-make of fluid passage 15 to constitute, in fluid passage 15
Be provided with the horn mouth matched with the structure of valve plug 9, valve plug 9 is Matching installation in the frustum cone structure in horn mouth, valve plug 9 it is small
Footpath end face is connected with valve rod 3, and the port of export of fluid passage 15 is provided with elastic guide mechanism, bigger diameter end face and the elasticity of valve plug 9
The telescopic end of guiding mechanism is fixedly connected, and valve rod 3 is fixedly installed guide pad 4, and the inwall of fluid passage 15 is provided with strip knot
The spacing neck 8 of guide pad of structure, guide pad 4 is installed in the spacing neck 8 of guide pad and slidably.
In order to preferably play damping and sealing function, the outer layer covers of valve plug 9 have rubber sealant.
Elastic guide mechanism includes spacing guide cylinder 11, the spring 12 being arranged in spacing guide cylinder 11, is enclosed within spacing lead
Into cylinder 11 and the spacing guide post 10 that is axially movable, spacing guide cylinder 11 be one end close and another end opening tubular knot
Structure, the blind end and the other end that one end of spring 12 is resisted against spacing guide cylinder 11 is squeezed in the inner of spacing guide post 10, limit
The outer end of position guide post 10 is fixedly connected with valve plug 9.
Spacing guide cylinder 11, spacing guide post 10, valve plug 9, valve rod 3 and the axis of fluid passage 15 are respectively positioned on always
On line.
Spacing guide cylinder 11 is installed in fluid passage 15 by fixed mount, and fixed mount includes connecting rod 1 and threaded connection
Seat 13, connecting rod 1 and the inwall of fluid passage 15 are fixed, and threaded connection seat 13 is fixedly connected with connecting rod 1, spacing guide cylinder 11
It is threadably secured in threaded connection seat 13, the nut 14 for axially position, nut 14 is provided with spacing guide cylinder 11
It is close to be threadedly coupled seat 13.
In order to reduce the fluid resistance of guide pad 4 in fluid passage 15, the two ends of guide pad 4 are provided with branching block 6,
Some spacing guiding steel balls 5 are provided between the inwall of guide pad 4 and the spacing neck 8 of guide pad, guide pad 4 and guide pad are spacing
The inwall of neck 8 is provided with the spacing neck of steel ball for limiting spacing guiding steel ball 5, and label is respectively 7 and 16.Branching block
6 be triangular prism structure, and the two of which seamed edge of branching block 6 is fitted with guide pad 4, and three seamed edges of branching block 6 are and fluid passage
15 is vertical.
Operation principle of the present utility model is as follows：
The port of export of vacuum valve is docked with vavuum pump, entrance point is using pipeline with being in fluid communication.Start vavuum pump, to true
The outlet plenum of empty valve is vacuumized, so that in the presence of atmospheric pressure, the valve element that valve plug 9 and valve rod 3 are constituted overcomes spring 12
The effect of power travels forward, so that fluid passage 15 is turned on, you can reach the purpose of pumping fluid.In the motion process of valve element
In, due to spacing guide cylinder 11 and spacing guide post 10, guide pad 4 and the spacing neck 8 of guide pad, to be prevented from valve core movement inclined
It is axially moved from original, therefore even being collided between valve element and valve body 2, fluid passage 15 can be also sealed all the time.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
In the range of shield.
Claims (7)
1. a kind of vacuum valve, including valve body, the valve body are provided with fluid passage and the valve element in the fluid passage, its
It is characterised by：The valve element is set by valve rod and for controlling the valve plug of the fluid passage break-make to constitute in the fluid passage
Be equipped with the horn mouth matched with the valve plug configurations, the valve plug be Matching installation in the frustum cone structure in the horn mouth,
The path end face of the valve plug is connected with the valve rod, and the port of export of the fluid passage is provided with elastic guide mechanism, described
The bigger diameter end face of valve plug is fixedly connected with the telescopic end of the elastic guide mechanism, and the valve rod is fixedly installed guide pad, institute
The inwall for stating fluid passage is provided with the spacing neck of guide pad of list structure, and it is spacing that the guide pad is installed in the guide pad
In neck and slidably.
2. vacuum valve according to claim 1, it is characterised in that：The valve plug outer layer covers have rubber sealant.
3. vacuum valve according to claim 1, it is characterised in that：The elastic guide mechanism includes spacing guide cylinder, set
The spring that is placed in the spacing guide cylinder, the spacing guide post in the spacing guide cylinder and being axially movable is enclosed within, it is described
Spacing guide cylinder is the tubular structure of one end closing and another end opening, and one end of the spring is resisted against the spacing guide cylinder
Blind end and the other end is squeezed in the inner of the spacing guide post, outer end and the valve plug of the spacing guide post are fixed
Connection.
4. vacuum valve according to claim 3, it is characterised in that：It is the spacing guide cylinder, the spacing guide post, described
The axis of valve plug, the valve rod and the fluid passage is respectively positioned on same straight line.
5. vacuum valve according to claim 3, it is characterised in that：The spacing guide cylinder is installed on described by fixed mount
In fluid passage, the fixed mount includes connecting rod and threaded connection seat, and the connecting rod and the inwall of the fluid passage are consolidated
Fixed, the threaded connection seat is fixedly connected with the connecting rod, and the spacing guide cylinder is threadably secured to be connected in the screw thread
In joint chair, the nut for axially position is provided with the spacing guide cylinder, the nut is close to the threaded connection seat.
6. vacuum valve according to claim 1, it is characterised in that：The two ends of the guide pad are provided with branching block, institute
It is provided with some spacing guiding steel balls between the inwall for stating guide pad and the spacing neck of the guide pad, the guide pad and described
The inwall of the spacing neck of guide pad is provided with for limiting the spacing spacing neck of steel ball for being oriented to steel ball.
7. vacuum valve according to claim 6, it is characterised in that：The branching block is triangular prism structure, the branching block
Two of which seamed edge is fitted with the guide pad, and three seamed edges of the branching block are vertical with the fluid passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621471285.8U CN206320370U (en) | 2016-12-30 | 2016-12-30 | Vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621471285.8U CN206320370U (en) | 2016-12-30 | 2016-12-30 | Vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206320370U true CN206320370U (en) | 2017-07-11 |
Family
ID=59261215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621471285.8U Active CN206320370U (en) | 2016-12-30 | 2016-12-30 | Vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206320370U (en) |
-
2016
- 2016-12-30 CN CN201621471285.8U patent/CN206320370U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |