CN208719415U - Valve mechanism - Google Patents
Valve mechanism Download PDFInfo
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- CN208719415U CN208719415U CN201820967235.1U CN201820967235U CN208719415U CN 208719415 U CN208719415 U CN 208719415U CN 201820967235 U CN201820967235 U CN 201820967235U CN 208719415 U CN208719415 U CN 208719415U
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Abstract
The utility model discloses a kind of valve mechanisms, belong to gas chemical industry's production technical field.By the way that spring non-return structure and ball-valve structure is arranged simultaneously in valve body, formd in valve body multi-sealed.When spring non-return structure is poorly sealed, ball-valve structure is closed, and fill a large amount of stop-leak compounds into stop-leak compound fill cavity, then slowly opens ball-valve structure, and continue filling seal grease, stop-leak compound is made to be filled into the position for needing to seal in pipeline valve.When spring non-return structure sealing performance meets the requirements, ball-valve structure can reinforce the sealing performance of the utility model；When spring non-return structure is poorly sealed, using ball-valve structure, the filling of pipeline valve stop-leak compound can be completed in the case where not stopping production, being changed without stop-leak compound fill valve, stopped medium leakage, guaranteed safety in production, improve production efficiency.
Description
Technical field
The utility model relates to gas chemical industry's production technical field, in particular to a kind of valve mechanism.
Background technique
During the production and transport of the media such as natural gas, need to be arranged on transport pipeline pipeline valve, it is usually used
The various pipeline valves such as flat gate valve, ball valve and advanced orifice valve.The basic function of pipeline valve is to turn on or cuts off medium
Circulation changes flow of media direction, adjusts rate-of flow and pressure, the normal operation and inspection of equipment in service conduit process system
The isolation of medium during repairing.Due to erosion, abrasion and corrosion of pipeline internal medium etc., pipeline valve is easy to happen interior
Leakage, the interior leakage of pipeline valve refers to when pipeline valve is closed, and still has the gap between spool and valve body, medium can still circulate.For
Prevent leakage in pipeline valve, stop-leak compound fill valve can be installed carry out the filling seal grease into pipeline valve, to pipeline valve into
Row sealing.
Spring stop-leak compound fill valve, the filling seal grease into pipeline valve are generallyd use at present.In filling seal grease
When, first stop-leak compound is pressed into the filling channel of spring stop-leak compound fill valve with stop-leak compound fill cup or stop-leak compound filling gun,
And make stop-leak compound full of the space on the outside of Non-Return steel ball in filling channel by the way that stop-leak compound is continuously replenished, not with stop-leak compound
Disconnected filling, stop-leak compound apply pressure, the spring-compressed being close under pressure with Non-Return steel ball, Non-Return steel ball to Non-Return steel ball
Mobile to spring side, so that Non-Return steel ball leaves at stop-leak compound filling channel sealing surface, and then stop-leak compound adds by stop-leak compound
Gap between note channel and Non-Return steel ball enters in pipeline valve, completes stop-leak compound and fills work, after the completion of filling, in bullet
Under the elastic acting force of spring, Non-Return steel ball is returned at stop-leak compound filling channel sealing surface, and spring loaded check valve sealing prevents pipeline
Medium is leaked outside by spring loaded check valve in valve, in order to avoid cause environmental pollution or safety accident occurs.
Above-mentioned stop-leak compound fill valve, in fact it could happen that following situations:
One is the impurity in medium, stop-leak compound filling channel or stop-leak compound to be easy to fill channel and non-return steel in stop-leak compound
There is residual in gap between pearl, another is that spring is plastically deformed because of fatigue or corrosion, another is Non-Return steel ball
It is easy to happen damage or corrosion.
Above-mentioned several situations be easy to cause between stop-leak compound filling channel and Non-Return steel ball and still have the gap, so that pipeline
Medium in valve is leaked outside by stop-leak compound fill valve.
Utility model content
In order to solve problems in the prior art, the utility model embodiment provides a kind of valve mechanism.The technical side
Case is as follows:
A kind of valve mechanism is provided, which includes:
Valve body has ladder-like long hole in the valve body, which is divided into the first stepped hole, the second stepped hole and sealing
Rouge fill cavity；
The spring non-return structure being set in first stepped hole, the spring non-return structure include Non-Return steel ball and
The spring being close to Non-Return steel ball；
Ball-valve structure, the ball-valve structure include spool and valve rod, which has through-hole；
In the valve opening opened up on the side wall of body portion where the valve rod is installed on second stepped hole, which is set to
In second stepped hole, which is able to drive the spool and rotates in second stepped hole, so that the through-hole and the second-order
Terraced hole opening direction is consistent or direction is vertical.
In a kind of possible design, the structure further include: clamping screw；
There is screw thread in the valve opening；
The clamping screw, which is connected through a screw thread, to be fixed in the valve opening；
There is through-hole in the clamping screw；
The valve rod passes through the through-hole of the clamping screw；
The valve rod is equipped with step surface；
The clamping screw end compresses the step surface of the valve rod.
In a kind of possible design, the structure further include: gasket；
The gasket is affixed on the outer wall of the spool；
Second stepped hole and the valve opening junction are equipped with sealing surface；
The gasket and the sealing surface are in close contact.
In a kind of possible design, entirety that the valve rod and spool are an integral molding structure.
In a kind of possible design, it is fixedly connected between the valve rod and spool by welding manner.
In a kind of possible design, the radial section of body portion where second stepped hole is polygon.
In a kind of possible design, the partial cross section which protrudes valve opening is polygon.
In a kind of possible design, the structure further include: handle；
The handle passes through being mounted on the valve rod in handle with the matched hole of valve stem end polygon.
It is fluted in second stepped hole in a kind of possible design:
The groove is spherical surface；
The spherical shape is matched with the spool shape.
Technical solution provided by the embodiment of the utility model has the benefit that
By the way that spring non-return structure and ball-valve structure is arranged simultaneously in valve body, formd in valve body multi-sealed.
When spring non-return structure is poorly sealed, ball-valve structure is closed, and a large amount of stop-leak compounds are filled into stop-leak compound fill cavity, then
Ball-valve structure is slowly opened, and continues filling seal grease, stop-leak compound is made to be filled into the position for needing to seal in pipeline valve.In bullet
When spring formula non-return structure sealing performance meets the requirements, ball-valve structure can reinforce the sealing performance of the utility model；In spring
When non-return structure is poorly sealed, using ball-valve structure, pipe can be completed in the case where not stopping production, being changed without stop-leak compound fill valve
The filling of road valve seal rouge stops medium leakage, guarantees safety in production, improves production efficiency.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of valve mechanism schematic diagram provided by the embodiment of the utility model；
Fig. 2 is a kind of valve mechanism provided by the embodiment of the utility model and stop-leak compound fill cup structural schematic diagram.
Appended drawing reference are as follows:
101 valve bodies；102 springs；103 Non-Return steel balls；104 spools；105 valve rods；106 primary sealing areas；107 gaskets；
108 secondary sealing areas；109 grooves；110 clamping screws；111 handles；
201 valve mechanisms；202 stop-leak compound fill cups.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Fig. 1 is a kind of valve mechanism schematic diagram provided by the embodiment of the utility model, and referring to Fig. 1, which includes: valve body
101, there is ladder-like long hole in the valve body 101, which is divided into the first stepped hole, the second stepped hole and stop-leak compound filling
Chamber 112；The spring non-return structure being set in first stepped hole, the spring non-return structure include Non-Return steel ball 103 with
And the spring 102 being connect with Non-Return steel ball 103；Ball-valve structure, the ball-valve structure include spool 104 and valve rod 105, the spool
104 have through-hole；It, should in the valve opening opened up on the side wall of 101 part of valve body where the valve rod 105 is installed on second stepped hole
Spool 104 is set in second stepped hole, which is able to drive the spool 104 and rotates in second stepped hole, is made
The through-hole is consistent with the second stepped hole opening direction or direction is vertical.
Wherein, the one end closed in the valve body 101 with spring non-return structure is mounted on the pipeline valve to filling seal grease
Men Shang, the other end are stop-leak compound filler；Spring 102, Non-Return steel ball are successively arranged in ladder-like long hole inside valve body 101
103 and spherical spool 104, the valve body 101 of 104 position of spool is equipped with valve opening, for installing valve rod 105, valve rod
105 protrude from the part outside valve opening for rotary valve rod 105, so that band movable valve plug 104 rotates, and then are connected or are closed close
It seals rouge and fills channel.
In the utility model embodiment, the ladder-like long hole in the valve body 101 is that stop-leak compound fills channel.For example,
In the valve body 101, have external screw thread on the outer wall of 101 part of valve body where the first stepped hole, for by the external screw thread with to
The valve body 101 is connected to the pipeline to filling seal grease by the cooperation between internal screw thread on the pipeline valve of filling seal grease
On valve.Also have external screw thread on the outer wall of 101 part of valve body where stop-leak compound fill cavity 112, for by the external screw thread with
Stop-leak compound fill cup is connected on the valve body 101 by the cooperation between internal screw thread in stop-leak compound fill cup.
The structure of stop-leak compound fill cup 202 and the valve mechanism 201 and the structure of stop-leak compound fill cup 202 may refer to
Fig. 2, wherein stop-leak compound fill cup 202 is band internal thread cup-like structure, can contain stop-leak compound.Stop-leak compound fill cup 202
Interior internal screw thread is matched with the external screw thread on valve body 101, for passing through stop-leak compound fill cup 202 to this in stop-leak compound filling
Filling seal grease in valve mechanism 201, or after the completion of stop-leak compound filling, by stop-leak compound fill cup 202 and the valve mechanism
It is together by a threaded connection between 201, which is sealed.
Stop-leak compound fill cup 202 can be used for being filled into stop-leak compound in valve mechanism 201, and then be filled by stop-leak compound
Stop-leak compound is filled into pipeline valve by channel.It is of course also possible to be filled by stop-leak compound filling gun or other modes close
Rouge is sealed, the utility model embodiment is not construed as limiting this.
In the utility model embodiment, spring non-return structure for realizing stop-leak compound one-way flow.Wherein, non-return
Steel ball 102 is spherical steel ball, and spring 103 has certain elasticity, intensity and fatigue durability.Non-Return steel ball 102 is used for and sealing
Rouge fills gluing, sealing between channel, and spring 103 can drive Non-Return steel ball 102 in the first ladder under the action of elastic force
It is moved in hole.For example, the internal diameter that the first stepped hole can be set is greater than the internal diameter of the second stepped hole, due to the first stepped hole and the
The size difference of two ladder bore opens, can be arranged between the first stepped hole and the second stepped hole one it is round and smooth, for
The transitional region that Non-Return steel ball 102 contacts, the transitional region are primary sealing area 106.Close without using valve mechanism progress
When sealing rouge filling, Non-Return steel ball 103 is under the resilient force of spring 102, and 106 palette of primary sealing area, so that the
Between one stepped hole and Non-Return steel ball 103, between primary sealing area 106 and Non-Return steel ball 103, medium or stop-leak compound can not be formed
The channel of circulation.When being sealed rouge filling work, when stop-leak compound is full of the space in the second stepped hole, and then to non-return steel
When pearl 103 applies pressure, under pressure, the compression of the spring 102 is close to Non-Return steel ball 103, Non-Return steel ball 103 is to spring
Side is mobile, so that Non-Return steel ball 103 leaves at primary sealing area 106, and then stop-leak compound is by stop-leak compound filling channel and only
The gap returned between steel ball 103 enters in pipeline valve, completes stop-leak compound and fills work.After the completion of filling, in spring 102
Under elastic acting force, Non-Return steel ball 103 is returned at primary sealing area 106, and with 106 palette of primary sealing area, spring stops
Sealing structure is returned, prevents medium in pipeline valve from leaking outside by spring non-return structure.
In the valve mechanism, it is additionally provided with ball-valve structure, the ball-valve structure and its usage mode work are specifically retouched below
It states.
The ball-valve structure includes spool 104 and valve rod 105, which has through-hole；The valve rod 105 be installed on this
In the valve opening opened up on the side wall of 101 part of valve body where two stepped holes, which is set in second stepped hole, should
Valve rod 105 is able to drive the spool 104 and rotates in second stepped hole, so that the through-hole and the second stepped hole opening direction
Consistent or direction is vertical.
In the utility model embodiment, ball-valve structure is mainly used for when spring non-return structure is poorly sealed,
It still ensures that medium will not leak outside, and remains to fill by valve mechanism provided by the utility model into pipeline valve
Stop-leak compound；Meanwhile when spring non-return structure sealing performance meets the requirements, the presence of ball-valve structure strengthens the valve mechanism
Leakproofness.The effect of 104 inner via hole of spool is that the stop-leak compound filling channels of 104 two sides of spool is connected to make stop-leak compound can be with
Circulation, valve rod 105 are used for band movable valve plug 104 and rotate.
For example, needing to fill sealing into pipeline valve when Non-Return steel ball 103 and filling interchannel cannot be sealed effectively
Rouge.If the through-hole in spool 104 is consistent with the second stepped hole opening direction at this time, i.e., ball-valve structure is in the open state
When, it can be by 105 rotated ninety degrees of valve rod, so that through-hole and the second stepped hole opening side in the spool 104 being attached thereto
To vertical, i.e. closing ball-valve structure.And a large amount of stop-leak compounds of filling in backward stop-leak compound fill cavity 112, a large amount of stop-leak compound is to close
Envelope rouge filling channel is sealed, and then the medium on the inside of ball-valve structure can not be passed to other side by ball-valve structure, into
And prevent medium from leaking outside.Then, ball-valve structure is slowly opened, and continues filling seal grease, stop-leak compound is made to be filled into pipeline
The position for needing to seal in valve.Finally, by being together by a threaded connection between stop-leak compound fill cup and the valve body 101, with
Just the valve mechanism is sealed.In this way when spring non-return structure is poorly sealed and medium constantly leaks outside, Ke Yi
It is pipeline valve filling seal grease in the case where not stopping production, stops medium leakage, guarantee safety in production, improve production efficiency.?
When being sealed rouge filling without using the valve mechanism, the stop-leak compound at ball-valve structure both ends strengthens 104 both ends of spool and sealing
Rouge fills the sealing performance between channel, and medium is further prevented to leak outside.
For example, when spring non-return structure sealing performance meets the requirements, it can also be with the valve rod in rotary ball valve structure
105, close ball-valve structure, i.e., in the valve mechanism except spring non-return structure, spool 104 and the second stepped hole it
Between form secondary seal, the secondary seal structural strengthening leakproofness of the valve mechanism.
In a kind of possible design, the structure further include: gasket 107；The gasket 107 is affixed on the outer of the spool 104
On wall；Second stepped hole and the valve opening junction are equipped with secondary sealing area 108；The gasket 107 closely connects with the sealing surface
Touching.The gasket 107 has the characteristics that wear-resisting, good seal performance, can bond, for example, the gasket 107 can be used it is wear-resisting
Rubber material is made, and is bonded in the position that 104 top of spool is contacted with secondary sealing area 108, further, the gasket
107 can also include being bonded in 104 side wall of spool and another piece of gasket of position that lower part is contacted with the second stepped hole, this
Another piece of gasket is used to further increase the sealing performance between spool 104 and valve body 101.
In a kind of possible design, fluted 109 in second stepped hole: the groove 109 is spherical surface；The spherical shape with
104 shape of spool matching, the lower part of spherical valve core 104 is fitted closely in the groove 109.The groove 109 increases spherical shape
The contact area of spool 104 and the second stepped hole is conducive to improve spherical valve core 104 and the sealing performance between valve body 101.
In a kind of possible design, the structure further include: clamping screw 110；There is screw thread in the valve opening；The clamping screw
110 are connected through a screw thread and are fixed in the valve opening；There is through-hole in the clamping screw 110；The valve rod 105 passes through the clamping screw
110 through-hole；The valve rod 105 is equipped with step surface；110 end of clamping screw compresses the step surface of the valve rod 105.
In a kind of possible design provided by the embodiment of the utility model, except setting spool 104 and valve rod 105 in valve opening
Outside, clamping screw 110 can also be set, for valve rod 105 to be positioned and locked.Valve rod 105 is up-thin-low-thick ladder
Rod structure, the face formed between the thin bar on top and the thick bar of lower part are step surface.There is through-hole in clamping screw 110, through-hole is straight
Diameter is identical as the bar diameter of 105 top thin bar of valve rod, and the thin bar on 105 top of valve rod can pass through through-hole, and valve rod 105 is made to be located at valve
The center in hole, while valve rod 105 can rotate in clamping screw 110.Meanwhile 110 end of clamping screw compresses and is somebody's turn to do
The step surface of valve rod 105 can further be sealed between ball-valve structure and valve body 101.
In a kind of possible design, entirety that the valve rod 105 and spool 104 are an integral molding structure.The entirety can lead to
It crosses forging type to be made, other can also can be used for integrally formed processing method by numerical control processing etc. and be made, this is practical
New embodiment is not construed as limiting this.In integrally formed structure, the position precision between spool 104 and valve rod 105 is high, keeps away
The deformation and rigging error generated between spool 104 and valve rod 105 due to being assembled is exempted from.Certainly, it is some can
In capable of designing, it can also be fixedly connected by welding manner between the valve rod 105 and spool 104, the utility model embodiment pair
This is not construed as limiting.Valve rod 105 and spool 104 can be processed into respectively, then are connected as one by welding manner, this system
Method is made, can better ensure that the machining accuracy of spherical valve core 104, is conducive to the sealing between ball-valve structure and valve body 101.
In a kind of possible design, the radial section of 101 part of valve body where second stepped hole is polygon, for example,
It can be regular hexagon, since the mode that the valve mechanism can be connected through a screw thread is mounted on the pipeline valve to filling seal grease
Men Shang, can be used the tool cards such as spanner shape be positive hexagon 101 part of valve body periphery, rotary spanner, drive should
Valve mechanism rotation, and then the valve mechanism is screwed in pipeline valve.
In a kind of possible design, the partial cross section which protrudes valve opening is polygon, for driving ball-valve structure
Rotation, for example, it may be square, when needing the ball-valve structure in a kind of valve mechanism provided by the utility model by being closed
When state is converted on state, need 104 rotated ninety degrees of spherical valve core, it at this time only need to be by 105 upper end of valve rod square
Part rotated ninety degrees.
In a kind of possible design, the structure further include: handle 111；The handle 111 by handle 111 with the valve
The 105 matched hole of end polygon of bar is mounted on the valve rod 105.It can also be set the position of ninety degrees apart on handle 111
Two protrusions are set, while backstop is set on clamping screw 110, when handle 111 is located in one of the position of backstop, table
Show that ball-valve structure is closed, when handle 111 is located at the position of another backstop, indicates that ball-valve structure is opened, can be more convenient in this way
The position of accurate adjustment screw.For example, when need by the ball-valve structure in a kind of valve mechanism provided by the utility model by
When closed state is converted on state, need 104 rotated ninety degrees of spherical valve core, it at this time only need to be by handle 111 by backstop
Closed position rotate to open position.
All the above alternatives can form the alternative embodiment of the disclosure, herein no longer using any combination
It repeats one by one.
Valve mechanism provided by the embodiment of the utility model, by the way that spring non-return structure and ball is arranged simultaneously in valve body
Valve arrangement forms multi-sealed in valve body.When spring non-return structure is poorly sealed, ball-valve structure is closed, and to close
The a large amount of stop-leak compounds of filling in rouge fill cavity 112 are sealed, ball-valve structure is then slowly opened, and continue filling seal grease, makes stop-leak compound
It is filled into the position for needing to seal in pipeline valve.When spring non-return structure sealing performance meets the requirements, ball-valve structure can
To reinforce the sealing performance of the valve mechanism；When spring non-return structure is poorly sealed, using ball-valve structure, can not stop
It produces, be changed without the filling for completing pipeline valve stop-leak compound in the case where stop-leak compound fill valve, stop medium leakage, guarantee that safety is raw
It produces, improves production efficiency.
Further, the setting of clamping screw and handle carries out rotation process to ball-valve structure convenient for staff, improves
The leakproofness of the valve mechanism, and can guarantee that the position of spool is more quasi- when ball-valve structure is in and opens or closes state
Really, so that medium be avoided to leak outside.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of valve mechanism, which is characterized in that the structure includes:
Valve body has ladder-like long hole in the valve body, and the ladder-like long hole is divided into the first stepped hole, the second stepped hole and sealing
Rouge fill cavity；
The spring non-return structure being set in first stepped hole, the spring non-return structure include Non-Return steel ball and
The spring being close to Non-Return steel ball；
Ball-valve structure, the ball-valve structure include spool and valve rod, and the spool has through-hole；
In the valve opening opened up on the side wall of body portion where the valve rod is installed on second stepped hole, the spool setting
In in second stepped hole, the valve rod is able to drive the spool and rotates in second stepped hole, so that described logical
Hole is consistent with the second stepped hole opening direction or direction is vertical.
2. structure according to claim 1, which is characterized in that the structure further include: clamping screw；
There is screw thread in the valve opening；
The clamping screw, which is connected through a screw thread, to be fixed in the valve opening；
There is through-hole in the clamping screw；
The valve rod passes through the through-hole of the clamping screw；
The valve rod is equipped with step surface；
The clamping screw end compresses the step surface of the valve rod.
3. structure according to claim 1, which is characterized in that the structure further include: gasket；
The gasket is affixed on the outer wall of the spool；
Second stepped hole and the valve opening junction are equipped with sealing surface；
The gasket and the sealing surface are in close contact.
4. structure according to claim 1, which is characterized in that the entirety that the valve rod and spool are an integral molding structure.
5. structure according to claim 1, which is characterized in that connect between the valve rod and spool by the way that welding manner is fixed
It connects.
6. structure according to claim 1, which is characterized in that the radial section of body portion where second stepped hole
For polygon.
7. structure according to claim 1, which is characterized in that the partial cross section of the valve rod protrusion valve opening is polygon.
8. structure according to claim 7, which is characterized in that the structure further include: handle；
The handle passes through being mounted on the valve rod in handle with the matched hole of valve stem end polygon.
9. structure according to claim 1, which is characterized in that fluted in second stepped hole:
The groove is spherical surface；
The spherical shape is matched with the spool shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820967235.1U CN208719415U (en) | 2018-06-22 | 2018-06-22 | Valve mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820967235.1U CN208719415U (en) | 2018-06-22 | 2018-06-22 | Valve mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719415U true CN208719415U (en) | 2019-04-09 |
Family
ID=65971855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820967235.1U Active CN208719415U (en) | 2018-06-22 | 2018-06-22 | Valve mechanism |
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| Country | Link |
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| CN (1) | CN208719415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110312411A (en) * | 2019-08-06 | 2019-10-08 | 西安煜永汇铁路物资有限公司 | A kind of railway chamber defrosting damp-proof device |
| CN110312411B (en) * | 2019-08-06 | 2024-07-05 | 西安煜永汇铁路物资有限公司 | Railway box defrosting dampproof device |
-
2018
- 2018-06-22 CN CN201820967235.1U patent/CN208719415U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110312411A (en) * | 2019-08-06 | 2019-10-08 | 西安煜永汇铁路物资有限公司 | A kind of railway chamber defrosting damp-proof device |
| CN110312411B (en) * | 2019-08-06 | 2024-07-05 | 西安煜永汇铁路物资有限公司 | Railway box defrosting dampproof device |
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