CN208169580U - A kind of hard sealing screw thread straight-through valve - Google Patents
A kind of hard sealing screw thread straight-through valve Download PDFInfo
- Publication number
- CN208169580U CN208169580U CN201820747416.3U CN201820747416U CN208169580U CN 208169580 U CN208169580 U CN 208169580U CN 201820747416 U CN201820747416 U CN 201820747416U CN 208169580 U CN208169580 U CN 208169580U
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- China
- Prior art keywords
- valve
- screw thread
- valve body
- hard sealing
- core
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of hard sealing screw thread straight-through valves, including valve body, gland, lower cover, core, support column, connecting screwed tube, hard sealing ring, bullet type circle, valve rod.The outer ring of the connecting screwed tube is provided at least one limiting retainer ring, the inner ring of the connecting screwed tube is equipped with the internal screw thread cooperated with the second threaded tube, the interface inner surface of described valve body one end is equipped with the internal screw thread cooperated with the first threaded tube, and the interface inner surface of the other end is equipped with the limiting slot circle cooperated with the limiting retainer ring.The utility model seals screw thread straight-through valve firmly, by the design of connecting screwed tube, in the case where not rotary valve, the second threaded tube is connected to valve body, facilitates attended operation.
Description
Technical field
The utility model relates to hard seal ball valve fields, more particularly to a kind of hard sealing screw thread straight-through valve.
Background technique
This seven kinds of valves of gate valve, shut-off valve, plunger valve, butterfly valve, plug valve, diaphragm valve and ball valve account for about valve total amount 80%
More than.Wherein ball valve is with fluid resistance is small, it is unrestricted to flow to, opening and closing is rapid and the low comprehensive performance of height is preferably excellent
Point.The valve seat of existing ball valve is generally used the manufacture of the high molecular synthetic materials such as rubber, nylon and polytetrafluoroethylene (PTFE), uses temperature
Lower than 200 DEG C, which limits the use scopes of ball valve.Made on the pipeline of many medium and high temperature media using high molecular material
The hidden danger of failure is had for valve seat.The comprehensive performance of ball valve is improved using metal hard sealing structure using temperature and uses the longevity
Life, is the needs of the systems such as chemical industry, petroleum, electric power, metallurgy, concentrated supply of heating in the city and long-distance transport pipes.
It, will be in the screw thread of the pipeline precession screw thread ball valve of continuous mounting ball valve in screw thread ball valve.Pipeline is not in some cases
Allow to rotate, this causes certain difficulty to the installation of screw thread ball valve.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of hard sealing screw thread straight-through valve,
What the technical solution was realized in：
A kind of hard sealing screw thread straight-through valve, including it is valve body, gland, lower cover, core, support column, connecting screwed tube, hard close
Seal, bullet type circle, valve rod.
The outer ring of the connecting screwed tube is provided at least one limiting retainer ring, the inner ring of the connecting screwed tube be equipped with
The internal screw thread of second threaded tube cooperation.The interface inner surface of described valve body one end is equipped with the interior spiral shell cooperated with the first threaded tube
Line, the interface inner surface of the other end are equipped with the limiting slot circle cooperated with the connecting screwed tube upper limit retainer ring.
Connecting screwed tube is screwed in into the second threaded tube, then connecting screwed tube push-in valve body is had the one of limiting slot circle
End.Sealing is cooperatively formed by limiting retainer ring and limiting slot circle.
Valve rod is fixed on valve body by the gland by the first bolt group, and the valve rod is removably consolidated with core,
The support column is set to valve body lower portion, and supports core, and the lower cover is fixed on valve body lower portion by the second bolt group, described
Lower cover limitation support column falls off.
The hard sealing ring forms sealing cooperation, the hard sealing ring along the both ends of valve body extending direction and core in core
Face backwards to core center is equipped with bullet type circle.
The utility model seals screw thread straight-through valve firmly, can be in the pipeline of many medium and high temperature media using hard seal means
Upper use.By the design of connecting screwed tube, in the case where not rotary valve, the second threaded tube is connected to valve body, side
Just attended operation.
Preferably, the thermal expansion coefficient of the connecting screwed tube is bigger than the thermal expansion coefficient of valve body, so that connecting screwed tube
Sealing effect between valve body increases.
Optionally, the bullet type circle is disk spring.
Optionally, there are four limiting retainer rings for the outer ring setting of the connecting screwed tube.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and detailed description；
Fig. 1 is that the utility model seals screw thread straight-through valve schematic cross-section firmly；
Appended drawing reference：1- valve body, 101- limiting slot circle, 2- gland, the first bolt of 21- group, 3- lower cover, the second bolt of 31-
Group, 4- core, 5- support column, the first threaded tube of 6-, the second threaded tube of 7-, 8- connecting screwed tube, 81- limiting retainer ring, 9-
Hard sealing ring, 10- bullet type circle, 11- valve rod.
Specific embodiment
As shown in Figure 1, a kind of hard revealed sealing screw thread straight-through valve of the utility model, including valve body 1, gland 2,
Lower cover 3, core 4, support column 5, connecting screwed tube 8, hard sealing ring 9, bullet type circle 10, valve rod 11.
There are four limiting retainer ring 81, the inner ring of the connecting screwed tube 8 is set for the outer ring setting of the connecting screwed tube 8
There is the internal screw thread with the cooperation of the second threaded tube 7.The interface inner surface of described 1 one end of valve body is equipped with and the first threaded tube 6
The internal screw thread of cooperation, the interface inner surface of the other end are equipped with the limit cooperated with the 8 upper limit retainer ring 81 of connecting screwed tube
Slot circle 101.
Connecting screwed tube 8 is screwed in into the second threaded tube 7, then connecting screwed tube 8 is pushed into valve body 1 there is limiting slot
One end of circle 101.Sealing is cooperatively formed by limiting retainer ring 81 and limiting slot circle 101.
Valve rod 11 is fixed on valve body 1 by the gland 2 by the first bolt group 21, the valve rod 11 and core
4 dismountable consolidations, the support column 5 is set to 1 lower part of valve body, and supports core 4, and the lower cover 3 passes through the second spiral shell
Bolt group 31 is fixed on 1 lower part of valve body, and the lower cover 3 limits falling off for support column 5.
The hard sealing ring 9 forms sealing cooperation along the both ends of 1 extending direction of valve body and core 4 in core 4, described
Hard sealing ring 9 is equipped with bullet type circle 10 backwards to the face at 4 center of core.The bullet type circle 10 is disk spring.
In specific implementation, the thermal expansion coefficient of the connecting screwed tube 8 is bigger than the thermal expansion coefficient of valve body 1, so that even
The sealing effect connect between screwed pipe 8 and valve body 1 increases.
Embodiment is only one embodiment of the utility model, for those of ordinary skill in the art, is not being paid
Under the premise of creative labor, other embodiments can also be obtained with reference to the accompanying drawings, also within protection scope of the present invention.
Claims (4)
1. a kind of hard sealing screw thread straight-through valve, including valve body（1）, gland（2）, lower cover（3）, core（4）, support column（5）, even
Connect screwed pipe（8）, hard sealing ring（9）, bullet type circle（10）, valve rod（11）；It is characterized in that：
The connecting screwed tube（8）Outer ring be provided at least one limiting retainer ring（81）, the connecting screwed tube（8）Inner ring
Equipped with the second threaded tube（7）The internal screw thread of cooperation, the valve body（1）The interface inner surface of one end is equipped with and the first screwed pipe
Road（6）The interface inner surface of the internal screw thread of cooperation, the other end is equipped with and the connecting screwed tube（8）Upper limit retainer ring（81）Cooperation
Limiting slot circle（101）,
The gland（2）Pass through the first bolt group（21）By valve rod（11）It is fixed on valve body（1）On, the valve rod（11）With core
（4）Dismountable consolidation, the support column（5）It is set to valve body（1）Lower part, and support core（4）, the lower cover（3）Pass through
Second bolt group（31）It is fixed on valve body（1）Lower part, the lower cover（3）Limit support column（5）Fall off,
The hard sealing ring（9）In core（4）Along valve body（1）The both ends of extending direction and core（4）Sealing cooperation is formed, it is described
Hard sealing ring（9）Backwards to core（4）The face at center is equipped with bullet type circle（10）.
2. hard sealing screw thread straight-through valve according to claim 1, it is characterised in that：The connecting screwed tube（8）Heat
The coefficient of expansion compares valve body（1）Thermal expansion coefficient it is big.
3. hard sealing screw thread straight-through valve according to claim 1, it is characterised in that：The bullet type circle（10）For dish-shaped bullet
Spring.
4. hard sealing screw thread straight-through valve according to claim 1, it is characterised in that：The connecting screwed tube（8）It is outer
There are four limiting retainer rings for circle setting（81）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820747416.3U CN208169580U (en) | 2018-05-19 | 2018-05-19 | A kind of hard sealing screw thread straight-through valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820747416.3U CN208169580U (en) | 2018-05-19 | 2018-05-19 | A kind of hard sealing screw thread straight-through valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169580U true CN208169580U (en) | 2018-11-30 |
Family
ID=64363742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820747416.3U Expired - Fee Related CN208169580U (en) | 2018-05-19 | 2018-05-19 | A kind of hard sealing screw thread straight-through valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208169580U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939751A (en) * | 2019-11-26 | 2020-03-31 | 浙江农林大学暨阳学院 | Ball valve |
| CN111306376A (en) * | 2020-03-06 | 2020-06-19 | 温州盛淼工业设计有限公司 | Pipe connector |
| CN112045374A (en) * | 2020-09-18 | 2020-12-08 | 项定洪 | Manufacturing process of high-strength valve body and product thereof |
-
2018
- 2018-05-19 CN CN201820747416.3U patent/CN208169580U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939751A (en) * | 2019-11-26 | 2020-03-31 | 浙江农林大学暨阳学院 | Ball valve |
| CN110939751B (en) * | 2019-11-26 | 2021-11-05 | 浙江农林大学暨阳学院 | Ball valve |
| CN111306376A (en) * | 2020-03-06 | 2020-06-19 | 温州盛淼工业设计有限公司 | Pipe connector |
| CN111306376B (en) * | 2020-03-06 | 2021-03-26 | 温州盛淼工业设计有限公司 | Pipe connector |
| CN112045374A (en) * | 2020-09-18 | 2020-12-08 | 项定洪 | Manufacturing process of high-strength valve body and product thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |