CN201909080U - Fusible alloy joint - Google Patents
Fusible alloy joint Download PDFInfo
- Publication number
- CN201909080U CN201909080U CN2010202694828U CN201020269482U CN201909080U CN 201909080 U CN201909080 U CN 201909080U CN 2010202694828 U CN2010202694828 U CN 2010202694828U CN 201020269482 U CN201020269482 U CN 201020269482U CN 201909080 U CN201909080 U CN 201909080U
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- Prior art keywords
- joint
- cylindrical
- low melting
- melting alloy
- fusible alloy
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- Expired - Fee Related
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Abstract
The utility model discloses a fusible alloy joint, which belongs to the technical field of safety in fusible fluid emergency cutout valves, and comprises a convex joint (2), a pouring gate (3), fusible alloy (4) and a concave joint (5). One end of the convex joint (2) is a cylindrical solid piece, one end of the concave joint (5) is a cylindrical hole, the cylindrical solid piece of the convex joint (2) is inserted into the cylindrical hole of the concave joint (5), annular grooves are respectively disposed at opposite positions of the outer wall of the cylindrical solid piece and the inner wall of the cylindrical hole, the pouring gate (3) is arranged at the concave joint (5), the annular grooves are communicated with the external via the pouring gate (3), and the annular fusible alloy (4) is poured in the annular grooves. The fusible alloy joint improves the stress condition of the fusible alloy, the fusible alloy is changed to be current stress by compound force from being originally stressed purely by shearing force, and bearing area is increased.
Description
Technical field
In a single day the utility model belongs to safety technique field in the flammable fluid emergency cut-off valve, is specifically related to relatively large valve and in use runs into the device that high temperature needs emergency cut-off after unlatching.
Background technique
The jar case of general transportation inflammable liquid or liquid gas or tank car all need increase an Emergeny Cutoff Valves (this valve has overcurrent to cut off function) at feed inlet and outlet, draw back valve when valve uses, and make the outflow of liquid or liquid gas physical efficiency or flow into tank body.In case take place that valve can cut off automatically when causing burning because of inflammable liquid or liquid gas leak.This valve has one to open the valve handle, and this handle end is connected with fixed end with spring that assurance is with resilience can be with valve closing, and the while handle end also is connected with cable wire, and the cable wire the other end connects with valve-opening mechanism.In case valve-opening mechanism starts the pulling cable wire, affects valve handle and is bound up on the handle upper spring with valve opening, the spring when opening mechanism is closed on the handle retracts handle with valve closing.In case valve can cut off automatically when causing burning because of inflammable liquid or liquid gas leak in order to guarantee to take place, and adds a coupling arrangement that contains low melting alloy in the middle of the cable wire between attachment valve door handle and opening mechanism.Temperature raises when breaking out of fire, with the fusing of the low melting alloy in the coupling arrangement, thrown off by the spring action coupling arrangement, and spring is closed valve automatically.The easy welded joint that uses now adopts two mutual convex-concave contacts of part at present, bores a through hole at the convex-concave position, the low melting alloy of casting in the hole.This method subject matter is: 1, because the low melting alloy joint need bear certain pulling force, this pulling force bears shearing force by the low melting alloy shear plane in two parts of connection.Because the intensity of low melting alloy is less, therefore, bigger for the hole design that guarantees sufficient intensity casting low melting alloy.The low melting alloy of therefore waste costliness.2, because first factor makes easy welded joint whole dimension bigger, cause the inconvenience in the use.Because joint often adopts non-ferrous metal manufacturings such as brass, so the cost of other parts of this joint is also higher.
Summary of the invention
The utility model provides needs the valve meltable piecing devices of emergency cut-off at high temperature.Form easy welded joint with annular low melting alloy casting raceway groove, changed low melting alloy force-bearing situation in the cylindrical low melting alloy casting raceway groove that generally adopts at present.Make original low melting alloy changed into by pure shear shear force and bear composite force, increased lifting surface area, reduced low melting alloy consumption, reduced joint weight, thereby reduced cost, improved the Security of using.
The utility model provides a kind of valve meltable piecing devices of emergency cut-off at high temperature that need to be used to, and is included in the low melting alloy of casting in the annular channel.
The technical solution adopted in the utility model is: one by the joint of mutual convex-concave contact and the piecing devices of the annular low melting alloy of casting.Comprise Steel Cable Terminal A, Steel Cable Terminal B, convex joint, casting gate, low melting alloy and spill joint, convex joint one end connects Steel Cable Terminal A, the other end of convex joint is cylindrical entity, spill joint one end connects Steel Cable Terminal B, the other end of spill joint is a cylindrical hole, the cylindrical entity of convex joint inserts in the cylindrical hole of spill joint, and cylindrical entity and cylindrical hole are Spielpassung; Respectively have circular groove on the relative position of the inwall of cylindrical entity outer wall and cylindrical hole; Be provided with casting gate at the spill joint, circular groove communicates with the external world by casting gate, cast annular low melting alloy (4) in circular groove.
Wherein be provided with pouring orifice at the spill joint, circular groove communicates with the external world by pouring orifice.
Circular groove cross section in the utility model on cylindrical entity and the cylindrical hole is a triangle, and the circular groove that cross section is a rhombus is formed in cylindrical entity and cylindrical hole assembling back.By an aperture that is connected with the outside low melting alloy is cast in the circular groove, form one like this and contain the low melting alloy joint.
The utility model has improved the force-bearing situation of low melting alloy in the joint, makes original low melting alloy changed into by pure shear shear force and bears composite force, has increased lifting surface area.
Description of drawings
Fig. 1 is a low melting alloy joint assembling schematic representation
Among the figure: 1. Steel Cable Terminal A, 2. convex joint, 3. casting gate, 4. low melting alloy, 5. spill joint, 6. Steel Cable Terminal B.
Embodiment
As shown in Figure 1, the low melting alloy joint is made up of convex joint 2, casting gate 3, low melting alloy 4, spill joint 5.Convex joint 2 inserts spill joint 5; At the low melting alloy 4 of casting gate 3 to ring-like groove casting fusing, the cooling back forms the low melting alloy joint.
During use, the convex joint 2 of low melting alloy joint connects Steel Cable Terminal A1, and spill joint 5 connects Steel Cable Terminal B6.Two ends Steel Cable Terminal A1 and Steel Cable Terminal B6 bear pulling force when valve open.When ambient temperature surpasses the melting point of low melting alloy, the low melting alloy fusing.At this moment because the pulling force that two ends Steel Cable Terminal A1 and Steel Cable Terminal B6 bear is thrown off the convex joint 2 of low melting alloy joint and spill joint 5.
Claims (2)
1. low melting alloy joint, comprise Steel Cable Terminal A (1) and Steel Cable Terminal B (6), it is characterized in that, also comprise convex joint (2), casting gate (3), low melting alloy (4) and spill joint (5), described convex joint (2) one ends connect Steel Cable Terminal A (1), the other end of described convex joint (2) is cylindrical entity, described spill joint (5) one ends connect Steel Cable Terminal B (6), the other end of described spill joint (5) is a cylindrical hole, the cylindrical entity of described convex joint (2) inserts in the cylindrical hole of spill joint (5), and described cylindrical entity and cylindrical hole are Spielpassung; Respectively have circular groove on the relative position of the inwall of described cylindrical entity outer wall and cylindrical hole; Be provided with casting gate (3) at described spill joint (5), circular groove communicates with the external world by casting gate (3), cast annular low melting alloy (4) in described circular groove.
2. low melting alloy joint according to claim 1 is characterized in that, the circular groove cross section on described cylindrical entity and the cylindrical hole is a triangle, and the circular groove that cross section is a rhombus is formed in described cylindrical entity and cylindrical hole assembling back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202694828U CN201909080U (en) | 2010-07-23 | 2010-07-23 | Fusible alloy joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202694828U CN201909080U (en) | 2010-07-23 | 2010-07-23 | Fusible alloy joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201909080U true CN201909080U (en) | 2011-07-27 |
Family
ID=44301281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202694828U Expired - Fee Related CN201909080U (en) | 2010-07-23 | 2010-07-23 | Fusible alloy joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201909080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115628322A (en) * | 2022-10-26 | 2023-01-20 | 南京市锅炉压力容器检验研究院 | Novel fusible alloy plug and intelligent control method thereof |
-
2010
- 2010-07-23 CN CN2010202694828U patent/CN201909080U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115628322A (en) * | 2022-10-26 | 2023-01-20 | 南京市锅炉压力容器检验研究院 | Novel fusible alloy plug and intelligent control method thereof |
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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: 20110727 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |