CN207316107U - Self-locking gate valve - Google Patents
Self-locking gate valve Download PDFInfo
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- CN207316107U CN207316107U CN201721219374.8U CN201721219374U CN207316107U CN 207316107 U CN207316107 U CN 207316107U CN 201721219374 U CN201721219374 U CN 201721219374U CN 207316107 U CN207316107 U CN 207316107U
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- valve
- stem nut
- valve stem
- handwheel
- self
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Abstract
A kind of self-locking gate valve, including valve body, valve deck, flashboard and valve rod, valve rod is connected with rotatable handwheel after being pierced by valve deck, valve stem nut group is equipped between valve rod and handwheel, valve stem nut group is connected with threaded stem, valve stem nut group to embedded connection from valve stem nut to forming, and the valve stem nut that valve stem nut group is located at the first half is connected in handwheel, and the valve stem nut that valve stem nut group is located at lower half is rotatably connected below handwheel.The utility model it is rational in infrastructure, compact, by the valve stem nut of the first half and the valve stem nut of lower half to forming valve stem nut group to embedded connection, pass sequentially through handwheel and valve stem nut group is transferred on valve rod, it cannot depart between handwheel and valve stem nut, so as to reach self-locking effect, and save the parts being locked, decrease assembly process, it has been more convenient dismounting and maintenance, accomplish to save parts expense and shorten the cycle in manufacture course of products, using effect is good, suitable for promoting.
Description
Technical field
Valve technology field is the utility model is related to, is specifically a kind of self-locking gate valve.
Background technology
Currently on the market, a kind of commonly used locking nut, the hard seal gate valve of bearing gland, abbreviation Z40H should
Valve is made of parts such as valve body, valve deck, flashboard, valve rods.Its function is mainly used for pipeline fluid and blocks and Facilitation.
Because its flow resistance coefficient is small, the advantages that good seal performance is compact-sized, conveniently opening and closing, be widely used in the industry pipes of all trades and professions
In road.But the hard seal gate valve of in the market there is the problem of, it is specific as follows:
1st, gate valve is in opening-closing process, since locking nut and valve stem nut are to be threadedly coupled, locking nut and handwheel meeting
Relative motion is produced, locking nut can loosen after long-term rotation, or even come off.
2nd, due to prolonged operation, valve stem nut rotates for a long time, easy to wear, when requiring replacement, but by
It is welded and fixed and is connected with stent in axis gland, therefore dismount difficulty, it is low replaces work efficiency.
3rd, the structure of locking nut and valve stem nut not only increases the quantity of parts, and adds mechanical processing
Process and cycle, easily increase cost.
Utility model content
The utility model will solve the above-mentioned problems of the prior art, there is provided a kind of self-locking gate valve, solves current lock
The problem of valve self-locking structure loosens and is not easy to replace.
The utility model solves the technical solution of its technical problem use：This self-locking gate valve, including valve body, valve deck,
Flashboard and valve rod, valve rod are connected with rotatable handwheel after being pierced by valve deck, and valve stem nut group, valve rod are equipped between valve rod and handwheel
Nut group is connected with threaded stem, and for valve stem nut group from valve stem nut to being formed to embedded connection, valve stem nut group is located at upper half
The valve stem nut in portion is connected in handwheel, and the valve stem nut that valve stem nut group is located at lower half is rotatably connected below handwheel.
After so setting, the valve stem nut of the first half and the valve stem nut of lower half to embedded connection to forming valve stem nut group, valve rod
Nut group is connected with threaded stem, and the valve stem nut of the first half is also further driven to being clamped in handwheel when rotating handwheel
The valve stem nut of half portion, then drive the lower half valve stem nut of embedded connection to rotate by the valve stem nut of the first half, finally make
Valve rod, which rotates, realizes up and down motion, and how handwheel acts departs from all without with valve stem nut, so as to reach self-locking effect.
As further improvement of the utility model, the threaded hole for having connection valve rod, valve rod spiral shell are run through in valve stem nut center
Female top is evenly equipped with the one group of insertion being vertically arranged pawl around threaded hole, and the valve stem nut of valve stem nut group top and the bottom passes through insertion
In the interlaced gap being fitted between adjacent embedded pawl of pawl.It is interlaced by being arranged on insertion pawl at the top of valve stem nut
It is fitted in the gap between adjacent embedded pawl, makes valve stem nut formation connection relation up and down, the valve stem nut on top rotates
The valve stem nut of lower part has been driven by embedded pawl afterwards.
As further improvement of the utility model, the both sides of the face of embedded pawl are radially set along valve stem nut.Both sides
Radial direction set end face to set, when making after embedded pawl insertion and being rotated, the end face fitting of both sides and stress is evenly ensures
The stability that lower part valve stem nut rotates.
As further improvement of the utility model, embedded pawl is arc surface structure close to threaded hole side.Arc surface knot
Structure can be when assembling, it is easier to operates, reduces unnecessary collision.
As further improvement of the utility model, the spacing distance between adjacent embedded pawl is more than the width of embedded pawl.
After so setting, embedded pawl leaves surplus when being embedded in, easy to quickly be embedded in.
As further improvement of the utility model, valve stem nut bottom is equipped with base, and base is regular polygon structure, hand
Wheel top is equipped with the groove for the regular polygon for coordinating base.After the regular polygon structure of base coordinates with groove, directly by top
Valve stem nut be stuck on handwheel, it is convenient and fast connection without unnecessary extra fixed structure, be conveniently replaceable.
As further improvement of the utility model, handwheel, which is fixed by the bracket, is connected to valve deck over top, valve rod spiral shell
Lower half valve stem nut in female group is connected in cradle top, and stent bottom is fixedly connected with valve deck by fastener.Stent
For handwheel to be fixedly supported on valve deck over top, the valve stem nut of lower half is located in cradle top, easy to valve rod into
Row connection, together with stent is tightly secured in by fastener with valve deck.
As further improvement of the utility model, cradle top side is equipped with the second screw thread for extending through internal stent
Hole, is connected with lubricating cup in the second threaded hole.Injection has lubricant in lubricating cup, and lubricant flows into stent endoporus by the second threaded hole
It is interior, it is lubricated for the valve stem nut of lower rotational, reduces the friction between valve stem nut and stent, make hand wheel rotating smooth.
The utility model has the advantages that：The utility model it is rational in infrastructure, compact, pass through the valve stem nut of the first half
Valve stem nut with lower half passes sequentially through handwheel and valve stem nut group is transferred to valve to forming valve stem nut group to embedded connection
It on bar, cannot depart between handwheel and valve stem nut, so as to reach self-locking effect, and save the parts being locked,
Assembly process is decreased, has been more convenient dismounting and maintenance, accomplishes to save parts expense and shortens in manufacture course of products
Cycle, using effect is good, suitable for promote.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of valve stem nut group；
Fig. 3 is the top view of valve stem nut；
Fig. 4 is the sectional view of valve stem nut.
Description of reference numerals：Valve body 1, valve deck 2, flashboard 3, valve rod 4, handwheel 5, valve stem nut 6, embedded pawl 7, base 8, branch
Frame 9, fastener 10, lubricating cup 11.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to the drawings：This self-locking gate valve in the present embodiment, including valve body 1, valve deck 2, flashboard 3 and valve rod 4, valve rod
4 be pierced by valve deck 2 after be connected with rotatable handwheel 5, valve stem nut group, valve stem nut group and valve are equipped between valve rod 4 and handwheel 5
Bar 4 is threadedly coupled, and for valve stem nut group from valve stem nut 6 to being formed to embedded connection, valve stem nut group is located at the valve rod of the first half
Nut is connected in handwheel 5, and the valve stem nut that valve stem nut group is located at lower half is rotatably connected below handwheel 5.
The threaded hole for having connection valve rod 4 is run through at 6 center of valve stem nut, and the top of valve stem nut 6 is evenly equipped with one around threaded hole
The insertion pawl 7 that group is vertically arranged, the valve stem nuts 6 of valve stem nut group top and the bottom by embedded pawl 7 it is interlaced be fitted to it is adjacent
In gap between embedded pawl 7.
The both sides of the face of embedded pawl 7 are radially set along valve stem nut 6, and embedded pawl 7 is arc surface close to threaded hole side
Structure, the spacing distance between adjacent embedded pawl 7 are more than the width of embedded pawl 7.
6 bottom of valve stem nut is equipped with base 8, and base 8 is regular polygon structure, and the top of handwheel 5, which is equipped with, is coordinating base 8 just
The groove of polygon.
Handwheel 5 is fixedly connected on 2 over top of valve deck by stent 9, and the lower half valve stem nut in valve stem nut group connects
It is connected in the top of stent 9,9 bottom of stent is fixedly connected with valve deck 2 by fastener 10.
9 top-side of stent is equipped with the second threaded hole extended through inside handwheel 5, and lubricating cup is connected with the second threaded hole
11。
In attached drawing, 6 one end of valve stem nut is just hexagonal, and the valve stem nut on top coordinates to block with handwheel 5 to be connected, valve rod
The other end of nut 6 is embedded pawl 7, and embedded mating connection can be carried out with mutually isostructural valve stem nut and forms valve stem nut
Group, valve stem nut group are connected with threaded stem.When handwheel 5 rotates, the valve stem nut 6 on top is driven to rotate, the valve rod on top
Nut drives the valve stem nut of lower part to rotate, and finally valve rod is moved up and down.Since 6 top of valve stem nut on top passes through base
Six sides endoporus groove positive with handwheel is connected, and the lower end of top valve stem nut 6 and the valve stem nut of lower part are embedding by embedded pawl 7
Enter formula connection, and valve rod 4 is threadedly coupled with whole valve stem nut group, the stent 9 of fixed handwheel 5, handwheel 5 cannot be with valve rod
Nut 6 departs from, therefore with regard to self-locking effect can be reached.
Although the utility model is shown and described by reference to preferred embodiment, this specialty is common
Technical staff can make various change in form and details it is to be appreciated that in the range of claims.
Claims (8)
1. a kind of self-locking gate valve, including valve body (1), valve deck (2), flashboard (3) and valve rod (4), valve rod (4) are pierced by valve deck (2)
After be connected with rotatable handwheel (5), it is characterized in that：Valve stem nut group is equipped between the valve rod (4) and handwheel (5), it is described
Valve stem nut group is threadedly coupled with valve rod (4), and the valve stem nut group is made of valve stem nut (6) to being connected to insertion, described
The valve stem nut that valve stem nut group is located at the first half is connected in handwheel (5), and the valve stem nut group is located at the valve rod of lower half
Nut is rotatably connected below handwheel (5).
2. self-locking gate valve according to claim 1, it is characterized in that：Valve stem nut (6) center, which is run through, connection valve
The threaded hole of bar (4), valve stem nut (6) top is evenly equipped with the one group of insertion being vertically arranged pawl (7) around threaded hole, described
Between the valve stem nut (6) of valve stem nut group top and the bottom is fitted between adjacent embedded pawl (7) by the way that embedded pawl (7) is interlaced
In gap.
3. self-locking gate valve according to claim 2, it is characterized in that：The both sides of the face of the embedded pawl (7) are along valve rod
Nut (6) is radially set.
4. the self-locking gate valve according to Claims 2 or 3, it is characterized in that：The close threaded hole side of the embedded pawl (7) is
Arc surface structure.
5. the self-locking gate valve according to claim or 2 or 3, it is characterized in that：Interval between the adjacent embedded pawl (7)
Distance is more than the width of embedded pawl (7).
6. self-locking gate valve according to claim 1 or 2, it is characterized in that：Valve stem nut (6) bottom is equipped with base
(8), the base (8) is regular polygon structure, and the groove for the regular polygon for coordinating base (8) is equipped with the top of the handwheel (5).
7. self-locking gate valve according to claim 1, it is characterized in that：The handwheel (5) is fixedly connected on by stent (9)
Valve deck (2) over top, in the lower half valve stem nut in the valve stem nut group is connected at the top of stent (9), the stent
(9) bottom is fixedly connected with valve deck (2) by fastener (10).
8. self-locking gate valve according to claim 7, it is characterized in that：Stent (9) top-side is equipped with through in one's hands
Second internal threaded hole of (5) is taken turns, lubricating cup (11) is connected with second threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219374.8U CN207316107U (en) | 2017-09-21 | 2017-09-21 | Self-locking gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219374.8U CN207316107U (en) | 2017-09-21 | 2017-09-21 | Self-locking gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207316107U true CN207316107U (en) | 2018-05-04 |
Family
ID=62383632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721219374.8U Active CN207316107U (en) | 2017-09-21 | 2017-09-21 | Self-locking gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207316107U (en) |
-
2017
- 2017-09-21 CN CN201721219374.8U patent/CN207316107U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |