CN204176121U - Tongs press type sealed type low temperature valve - Google Patents
Tongs press type sealed type low temperature valve Download PDFInfo
- Publication number
- CN204176121U CN204176121U CN201420590961.8U CN201420590961U CN204176121U CN 204176121 U CN204176121 U CN 204176121U CN 201420590961 U CN201420590961 U CN 201420590961U CN 204176121 U CN204176121 U CN 204176121U
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- valve
- compresses
- caliper
- compress
- seal
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Abstract
The utility model discloses a kind of tongs press type sealed type low temperature valve, comprise valve body, valve gap, fixing bolt, valve rod and control valve core assembly, horizontal concave ring groove is provided with at the inwall of vertical rigid seal groove, a left side is provided with in horizontal concave ring groove, the right side compresses caliper, a horizontal left side is provided with in horizontal concave ring groove, the right side compresses spring, left, the right side compresses caliper and includes semicircle clamp pressure head and compress spreader, the arc surface of semicircle clamp pressure head is provided with circular arc seal ring, be provided with to seal to clog between the bottom side and the bottom surface of horizontal concave ring groove of semicircle clamp pressure head and enclose, be provided with sealing in the end of semicircle clamp pressure head and compress rubber layer, left, the right side compress caliper by sealing compress rubber layer sealing compress.Structure of the present utility model is simple, makes it can reach sealing effect with valve rod after combining, is provided with and laterally compresses spring in horizontal concave ring groove, it is in use not easy to loosen or come off, effectively raises use sealability, good seal performance, applicability is strong.
Description
Technical field
The utility model belongs to low temperature valve technical field, is specifically related to a kind of tongs press type sealed type low temperature valve.
Background technique
Low temperature valve is mainly used for the valve of medium low-temperature working, it is mainly used in storing and transmission cryogenic liquide, because purposes is comparatively special, low temperature valve is higher for sealing requirements, do not allow leakage, when there being liquid leakage, valve outside will frosting, valve internal freezes card, cause valve invalidation, the Subzero valve of prior art is mainly by valve seat, valve body, valve gap, spool and control valve rod composition, seal arrangement comprises the Packing seat set gradually from inside to outside, filler, filler pressing sleeve and Gland composition, its filler adopts plastic hoop, although it can meet the need of work of cryogenic media to a certain extent, but due to its use for a long time time, easily there is aging loosening situation in interior pad or stuffing box gland, easy impact is leaked, on the basis of the above, China Patent Publication No. be 201636340 disclose a kind of towards low temperature valve, it mainly sets up seal ring in valve gap, and upper seal ring is arranged in rigid seal groove, although it can reach the object of duplicate protection to a certain extent, the possibility of leak of liquid can be reduced to a certain extent, but it in use, also there will be wearing and tearing between upper seal ring and rigid seal groove, also the situation loosening or come off is there is from upper seal ring, thus make leak of liquid, be difficult to reach desirable sealing effect.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, the tongs press type sealed type low temperature valve of good seal performance.
The technological scheme realizing the utility model object is a kind of tongs press type sealed type low temperature valve, comprise valve body, valve gap, for valve gap being fixed on the fixing bolt on valve body, valve rod and be installed on the control valve core assembly of valve gap lower end, described control valve core assembly comprises valve acrosome and is fixed on the lower seal of described valve acrosome lower end, described valve body is provided with vertical rigid seal groove, valve gap and valve acrosome are separately positioned on top and the bottom of vertical rigid seal groove, described valve rod is fixedly connected with the top of described valve acrosome, and described valve rod is arranged through described vertical rigid seal groove, horizontal concave ring groove is provided with at the inwall of described vertical rigid seal groove, a left side is provided with in described horizontal concave ring groove, the right side compresses caliper, a horizontal left side is provided with in described horizontal concave ring groove, the right side compresses spring, left, the right side compresses caliper and to be arranged in horizontal concave ring groove and to compress a left side respectively, the right side compresses spring, a described left side, the right side compresses caliper and includes semicircle clamp pressure head and compress spreader, the described spreader that compresses is connected to a left side, the right side compresses on spring, the arc surface of described semicircle clamp pressure head is connected on the outer side surface of described valve rod, the arc surface of described semicircle clamp pressure head is provided with circular arc seal ring, be provided with to seal to clog between the bottom side and the bottom surface of described horizontal concave ring groove of described semicircle clamp pressure head and enclose, be provided with sealing in the end of described semicircle clamp pressure head and compress rubber layer, a described left side, the right side compresses after caliper coordinates and forms a full-round hole, described valve rod passes full-round hole and is pressed on the full circle seal ring of two circular arc seal rings formation, left, the right side compress caliper by sealing compress rubber layer sealing compress.
The described left and right caliper that compresses is rigid material caliper.
The thickness that described sealing compresses rubber layer is greater than the thickness of circular arc seal ring.
Described lower seal is that elastic material is made.
The utility model has positive effect: structure of the present utility model is simple, horizontal concave ring groove is provided with in vertical rigidity seal groove, and be provided with a left side in horizontal concave ring groove, the right side compresses caliper, and on a left side, the semicircle clamp pressure head that the right side compresses caliper is provided with circular arc seal ring, make it can reach sealing effect with valve rod after combining, be provided with in horizontal concave ring groove simultaneously and laterally compress spring, by laterally compressing the reset response of spring, make a left side, the right side compresses binding clip and is in all the time and compresses sealing state, simultaneously on a left side, the right side compresses to be provided with to seal to clog between the lower end surface of binding clip and horizontal concave ring groove and encloses, make a left side, right binding clip and horizontal concave ring groove reach sealing, it in use, be not easy to loosen or come off, and when occurring wearing and tearing in a small amount, under the Self-resetting effect compressing spring, leak of liquid can't be there is, effectively raise use sealability, good seal performance, applicability is strong.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein:
Fig. 1 is structure of the present utility model intention;
Fig. 2 is the left concrete structure schematic diagram compressing caliper in Fig. 1.
Embodiment
(embodiment 1)
Fig. 1 and Fig. 2 shows a kind of embodiment of the present utility model, and wherein Fig. 1 is structure of the present utility model intention; Fig. 2 is the left concrete structure schematic diagram compressing caliper in Fig. 1.
See Fig. 1 and Fig. 2, a kind of tongs press type sealed type low temperature valve, comprises valve body 1, valve gap 2, for valve gap 2 being fixed on the fixing bolt 3 on valve body 1, valve rod 4 and be installed on the control valve core assembly of valve gap 2 lower end, described control valve core assembly comprises valve acrosome 5 and is fixed on the lower seal 6 of described valve acrosome 5 lower end, described valve body 1 is provided with vertical rigid seal groove 7, valve gap 2 and valve acrosome 5 are separately positioned on top and the bottom of vertical rigid seal groove 7, described valve rod 4 is fixedly connected with the top of described valve acrosome 5, and described valve rod 4 is arranged through described vertical rigid seal groove 7, be provided with horizontal concave ring groove 8 at the inwall of described vertical rigid seal groove 7, in described horizontal concave ring groove 8, be provided with a left side, the right side compresses caliper 9, 10, in described horizontal concave ring groove 8, be provided with a horizontal left side, the right side compresses spring 11, 12, left, the right side compresses caliper 9, 10 to be arranged in horizontal concave ring groove 8 and to compress a left side respectively, the right side compresses spring 11, 12, a described left side, the right side compresses caliper 9, 10 include semicircle clamp pressure head 13 and compress spreader 14, described in compress spreader 14 and be connected to a left side, the right side to compress on spring 11, 12, the arc surface of described semicircle clamp pressure head 13 is connected on the outer side surface of described valve rod 4, the arc surface of described semicircle clamp pressure head 13 is provided with circular arc seal ring 15, be provided with to seal between the bottom side and the bottom surface of described horizontal concave ring groove 8 of described semicircle clamp pressure head 13 and clog circle 16, be provided with sealing in the end of described semicircle clamp pressure head 13 and compress rubber layer 17, a described left side, the right side compresses caliper 9, 10 coordinate a rear formation full-round hole, and described valve rod 4 passes full-round hole and is pressed on the full circle seal ring of two circular arc seal rings formation, left, the right side compresses caliper 9, 10 compress rubber layer 17 sealing by sealing compresses.Horizontal concave ring groove is provided with in vertical rigidity seal groove, and be provided with a left side in horizontal concave ring groove, the right side compresses caliper, and on a left side, the semicircle clamp pressure head that the right side compresses caliper is provided with circular arc seal ring, make it can reach sealing effect with valve rod after combining, be provided with in horizontal concave ring groove simultaneously and laterally compress spring, by laterally compressing the reset response of spring, make a left side, the right side compresses binding clip and is in all the time and compresses sealing state, simultaneously on a left side, the right side compresses to be provided with to seal to clog between the lower end surface of binding clip and horizontal concave ring groove and encloses, make a left side, right binding clip and horizontal concave ring groove reach sealing, it in use, be not easy to loosen or come off, and when occurring wearing and tearing in a small amount, under the Self-resetting effect compressing spring, leak of liquid can't be there is, effectively raise use sealability, good seal performance, applicability is strong.
The described left and right caliper 9,10 that compresses is for rigid material caliper.
The thickness that described sealing compresses rubber layer 17 is greater than the thickness of circular arc seal ring 15.The thickness compressing rubber layer due to sealing is comparatively large, therefore makes sealing compress rubber layer to have certain compression distance, when wearing and tearing appear in circular arc seal ring, have certain movement to compress compression distance, and then effectively can keep sealing.
Described lower seal 6 is made for elastic material.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And these belong to connotation of the present utility model the apparent change of extending out or variation still belong to protection domain of the present utility model.
Claims (4)
1. a tongs press type sealed type low temperature valve, comprise valve body, valve gap, for valve gap being fixed on the fixing bolt on valve body, valve rod and be installed on the control valve core assembly of valve gap lower end, described control valve core assembly comprises valve acrosome and is fixed on the lower seal of described valve acrosome lower end, described valve body is provided with vertical rigid seal groove, valve gap and valve acrosome are separately positioned on top and the bottom of vertical rigid seal groove, described valve rod is fixedly connected with the top of described valve acrosome, and described valve rod is arranged through described vertical rigid seal groove, it is characterized in that: be provided with horizontal concave ring groove at the inwall of described vertical rigid seal groove, a left side is provided with in described horizontal concave ring groove, the right side compresses caliper, a horizontal left side is provided with in described horizontal concave ring groove, the right side compresses spring, left, the right side compresses caliper and to be arranged in horizontal concave ring groove and to compress a left side respectively, the right side compresses spring, a described left side, the right side compresses caliper and includes semicircle clamp pressure head and compress spreader, the described spreader that compresses is connected to a left side, the right side compresses on spring, the arc surface of described semicircle clamp pressure head is connected on the outer side surface of described valve rod, the arc surface of described semicircle clamp pressure head is provided with circular arc seal ring, be provided with to seal to clog between the bottom side and the bottom surface of described horizontal concave ring groove of described semicircle clamp pressure head and enclose, be provided with sealing in the end of described semicircle clamp pressure head and compress rubber layer, a described left side, the right side compresses after caliper coordinates and forms a full-round hole, described valve rod passes full-round hole and is pressed on the full circle seal ring of two circular arc seal rings formation, left, the right side compress caliper by sealing compress rubber layer sealing compress.
2. tongs press type sealed type low temperature valve according to claim 1, is characterized in that: the described left and right caliper that compresses is rigid material caliper.
3. tongs press type sealed type low temperature valve according to claim 2, is characterized in that: the thickness that described sealing compresses rubber layer is greater than the thickness of circular arc seal ring.
4. tongs press type sealed type low temperature valve according to claim 3, is characterized in that: described lower seal is that elastic material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420590961.8U CN204176121U (en) | 2014-09-29 | 2014-09-29 | Tongs press type sealed type low temperature valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420590961.8U CN204176121U (en) | 2014-09-29 | 2014-09-29 | Tongs press type sealed type low temperature valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204176121U true CN204176121U (en) | 2015-02-25 |
Family
ID=52564931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420590961.8U Expired - Fee Related CN204176121U (en) | 2014-09-29 | 2014-09-29 | Tongs press type sealed type low temperature valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204176121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644460A (en) * | 2018-07-24 | 2018-10-12 | 周玉红 | A kind of valve being easily installed dismounting handwheel |
-
2014
- 2014-09-29 CN CN201420590961.8U patent/CN204176121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644460A (en) * | 2018-07-24 | 2018-10-12 | 周玉红 | A kind of valve being easily installed dismounting handwheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20160929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |