CN201991902U - Thread plug and pressure relief structure - Google Patents
Thread plug and pressure relief structure Download PDFInfo
- Publication number
- CN201991902U CN201991902U CN2011200417168U CN201120041716U CN201991902U CN 201991902 U CN201991902 U CN 201991902U CN 2011200417168 U CN2011200417168 U CN 2011200417168U CN 201120041716 U CN201120041716 U CN 201120041716U CN 201991902 U CN201991902 U CN 201991902U
- Authority
- CN
- China
- Prior art keywords
- screw thread
- plug
- pressure relief
- thread plug
- pressure
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 7
- 235000011613 Pinus brutia Nutrition 0.000 description 7
- 241000018646 Pinus brutia Species 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 239000012467 final product Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001651 emery Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses screw thread plug is including the screw thread body, at the pressure release breach of this screw thread body the latter half setting. The thread plug is arranged at the pressure relief opening, the thread plug is tightened to seal the pressure relief opening, when pressure relief is needed, the thread plug is loosened, and when the pressure relief notch is exposed, high-pressure gas or liquid can be discharged. The utility model discloses need loosen the screw thread completely when effectual having solved ordinary plug pressure release, the plug easily drops, and flow and the uncontrolled problem of direction make the pressure release of screw thread plug under the condition that does not drop during the pressure release. The pressure relief valve is also suitable for installing the screw plug when residual pressure still exists in the container, and the pressure relief opening can reduce the resistance borne by the pressure relief valve during installation and is convenient to install.
Description
[technical field]
The utility model relates to novel screw thread plug and the pressure relief in a kind of engineering field.
[background technique]
In the engineering field container or the pipeline that much has pressure arranged, as the package condenser in the air-conditioning, heating pipe etc. in order to emit partially liq or gas, are provided with a screw thread plug or bolt plug.Existing plug generally is the cylindrical thread body structure, as depicted in figs. 1 and 2, must could produce the slit on earth by pine during the plug pressure release, emit gas or liquid, and screw thread is easy to come off on earth at this moment, make pressure relief opening uncontrolled, and pressure release flow size and Orientation is uncontrolled.
The caducous novel screw thread plug of plug is real in necessary when therefore, providing a kind of venting that solves existing plug or pressure release.
[summary of the invention]
The purpose of this utility model be to provide a kind of can be at venting or adeciduate screw thread plug during pressure release.
A purpose more of the present utility model is to provide the screw thread plug of a kind of may command fluid flow and direction.
Another purpose of the present utility model is to provide the pressure relief of a kind of may command fluid flow and direction.
For realizing the utility model purpose, provide following technological scheme:
The utility model screw thread plug includes threaded body, at the pressure release breach of this threaded body lower half portion setting.The screw thread plug is installed in pressure relief opening, and urgent screw thread plug then with the pressure relief opening sealing, when needing pressure release, is beaten loose screw thread plug, and when exposing the pressure release breach, pressurized gas or liquid can release.
This pressure release breach can adopt multiple embodiments, as long as be implemented in the breach that threaded body lower half portion offers pressure release, and has the part screw thread, the screw thread plug is not exclusively being beaten under the situation of pine, just the part screw thread of threaded body still with situation that internal thread on the nut combines under, expose the pressure release breach, realize the pressure release under dropping situations not of screw thread plug.
One of mode of execution is, this pressure release breach is the breach of cutting apart with scarf in the setting of threaded body lower half portion.Preferable, intersect this scarf and threaded body bottom surface, downcuts the semicircle of the circular arc of bottom surface less than the bottom surface.This scarf is no more than the medial axis of threaded body, and promptly the part of Qie Xiaing is less than half of threaded body.Because the most of outside thread on the screw thread plug still combines with internal thread on the nut, so the screw thread plug can not come off.Because the size of pressure release breach and the tightness of plug are linear, the urgent then pressure relief opening of screw thread plug reduces, and the screw thread plug is beaten pine, and then the pressure relief opening change is big.And the direction of rotation screw thread plug, can control the direction of the fluid that spray releases, this screw thread plug also is applicable to installs plug when still having pressure in the container, because the pressure release breach is arranged, suffered resistance in the time of can reducing to install is convenient to install.
The mode of execution of another variation, this pressure release breach are at least one groovings of offering on threaded body.This structure can not destroyed screw thread equally, thereby the screw thread plug is beaten and got final product pressure release when pine exposes grooving.The processing technology of this structure is comparatively simple, drives some groovings with emery wheel and get final product on the screw thread plug.
The utility model also provides a kind of pressure relief that adopts above-mentioned screw thread plug, and the screw thread plug is not easy to come off when pressure release, and flow and direction can be controlled during pressure release.。
The contrast prior art the utlity model has following advantage:
When effectively having solved common plug pressure release, the utility model screw thread need be beaten pine fully, plug easily comes off, the uncontrolled problem of flow and direction during pressure release makes the pressure release under adeciduate situation of screw thread plug, and the degree of tightness screw thread is controlled the flow and the direction of fluid as required.Also be applicable to when still having overbottom pressure in the container plug be installed that because pressure relief opening is arranged, suffered resistance in the time of can reducing to install is convenient to install.
[description of drawings]
Fig. 1 is the front view of existing screw thread plug;
Fig. 2 is the sectional view of existing screw thread plug;
Fig. 3 is the utility model screw thread plug embodiment one a front view;
Fig. 4 is the utility model screw thread plug embodiment one a sectional view;
Fig. 5 is the partial sectional view that the utility model screw thread plug is installed and regulated;
Fig. 6 is the front view that the utility model screw thread plug is installed and regulated;
Fig. 7 is the utility model screw thread plug embodiment two a front view;
Fig. 8 is the utility model screw thread plug embodiment two a side view;
Fig. 9 is the sectional view of A-A direction among Fig. 7;
Figure 10 is the utility model screw thread plug embodiment two a stereogram.
[embodiment]
See also Fig. 3 and Fig. 4, the utility model screw thread plug is provided with the pressure release breach, this pressure release breach 2 is to cut an inclined-plane in the Lower Half of threaded body 1, intersect this inclined-plane and threaded body bottom surface, intersection line is no more than the center of circle of threaded body bottom surface, the circular arc that this inclined-plane downcuts the bottom surface is less than half of bottom surface circle, promptly downcut part less than cylindrical body half, institute's incisal bevel is no more than plug cylinder axis.
See also Fig. 5 and Fig. 6, the screw thread plug is installed on the pressure relief opening, when the screw thread plug is urgent pressure relief opening is sealed, when needing pressure release, beat loose screw thread plug, when exposing pressure release breach 2, pressure relief opening is opened, and pressurized gas or liquid can release.Because the most of outside thread on the screw thread plug still combines with internal thread on the nut 3, so the screw thread plug can not come off and become flexible.Because the size of pressure relief opening 4 and the tightness of screw thread plug are linear, the urgent then pressure relief opening of screw thread plug reduces, and the screw thread plug is beaten pine, and then the pressure relief opening change is big.And the direction of rotation screw thread plug, can control the direction of the fluid that spray releases, this screw thread plug structure also is applicable to when still having overbottom pressure in the container installs, because pressure relief opening is arranged, suffered resistance in the time of can reducing to install is convenient to install.
Fig. 7 ~ 10 are another expansion mode of the present utility model, cut at least one grooving 4 on the axial direction of threaded body 1, and this grooving 4 is arranged on lower half portion of threaded body 1, the method can not destroyed screw thread equally, when the screw thread plug is beaten pine, expose pressure relief opening, can finish pressure release.The method is fairly simple on technology, drives some groovings with emery wheel and get final product on plug.Preferable, the length of this grooving 4 is half of length of threaded body 1.
The above only is preferred embodiment of the present utility model, and protection domain of the present utility model is not limited thereto, and anyly all belongs within the utility model protection domain based on the equivalent transformation on the technical solutions of the utility model.
Claims (6)
1. screw thread plug, it comprises threaded body, it is characterized in that the pressure release breach that is provided with in this threaded body lower half portion.
2. screw thread plug as claimed in claim 1 is characterized in that, this pressure release breach is the breach of cutting apart with scarf in the setting of threaded body lower half portion.
3. screw thread plug as claimed in claim 1 is characterized in that, this pressure release breach is at least one grooving of offering on threaded body.
4. screw thread plug as claimed in claim 2 is characterized in that, intersect this scarf and threaded body bottom surface, downcuts the semicircle of the circular arc of bottom surface less than the bottom surface.
5. screw thread plug as claimed in claim 2 is characterized in that this scarf is no more than the medial axis of threaded body.
6. pressure relief that is used for pressurized container or pipeline, this pressure relief comprises the pressure relief opening that is arranged on pressurized container or pipeline, and the screw thread plug that cooperates with this pressure relief opening, it is characterized in that this screw thread plug adopts as each described screw thread plug of claim 1 ~ 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200417168U CN201991902U (en) | 2011-02-18 | 2011-02-18 | Thread plug and pressure relief structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200417168U CN201991902U (en) | 2011-02-18 | 2011-02-18 | Thread plug and pressure relief structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991902U true CN201991902U (en) | 2011-09-28 |
Family
ID=44668391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200417168U Expired - Lifetime CN201991902U (en) | 2011-02-18 | 2011-02-18 | Thread plug and pressure relief structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991902U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454403A (en) * | 2011-12-02 | 2012-05-16 | 贵州航天凯山石油仪器有限公司 | Method and device for controlling flow velocity of high-pressure fluid |
| CN104121449A (en) * | 2013-04-25 | 2014-10-29 | 中国石油化工股份有限公司 | Device and method for blocking pipeline under pressure |
| CN105805479A (en) * | 2014-12-31 | 2016-07-27 | 中国石油天然气股份有限公司 | Plug capable of relieving pressure |
-
2011
- 2011-02-18 CN CN2011200417168U patent/CN201991902U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454403A (en) * | 2011-12-02 | 2012-05-16 | 贵州航天凯山石油仪器有限公司 | Method and device for controlling flow velocity of high-pressure fluid |
| CN104121449A (en) * | 2013-04-25 | 2014-10-29 | 中国石油化工股份有限公司 | Device and method for blocking pipeline under pressure |
| CN105805479A (en) * | 2014-12-31 | 2016-07-27 | 中国石油天然气股份有限公司 | Plug capable of relieving pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201991902U (en) | Thread plug and pressure relief structure | |
| JP5081569B2 (en) | Branch joint | |
| CN201166229Y (en) | Double-safety seal chucking appliance | |
| CN201215219Y (en) | High-temperature high-pressure bellows instrument block valve with radiation fin structure | |
| CN210566415U (en) | Pneumatic valve convenient to control | |
| CN211571852U (en) | Fire hydrant emergency valve | |
| CN204127372U (en) | A kind of novel seal adjustable ball valve with high voltage relief function | |
| CN207569249U (en) | A kind of high steam pipeline copper valve deck | |
| CN208859024U (en) | A kind of safety-type angle valve | |
| CN201582527U (en) | Liquid discharging device | |
| CN208252859U (en) | A kind of boiler safety valve | |
| CN203730819U (en) | Pipeline opening and closing mechanism | |
| CN202580088U (en) | Low-pressure simple ball valve | |
| CN201844081U (en) | Pipeline overflow valve | |
| CN201779345U (en) | Gas pressure display valve and gas pressure display device with the same | |
| CN216201096U (en) | Valve cock cover of large-scale road maintenance machinery valve of railway | |
| CN204717127U (en) | Refrigeration plant right-angle type stop valve | |
| CN206929387U (en) | A kind of check valve | |
| CN204717015U (en) | Refrigeration plant straight-through stop valve | |
| CN204717014U (en) | Refrigeration plant stop valve | |
| CN204901337U (en) | Integrated valve body of liquefied natural gas gas cylinder | |
| CN206017753U (en) | A kind of reinforced gate valve | |
| CN214119065U (en) | Medium-pressure hydrogen safety relief valve | |
| CN203847717U (en) | Angle type plunger valve | |
| CN202884067U (en) | Valve clack of hydraulic control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |