CN201475482U - Thermal bulb with gland - Google Patents
Thermal bulb with gland Download PDFInfo
- Publication number
- CN201475482U CN201475482U CN2009201731371U CN200920173137U CN201475482U CN 201475482 U CN201475482 U CN 201475482U CN 2009201731371 U CN2009201731371 U CN 2009201731371U CN 200920173137 U CN200920173137 U CN 200920173137U CN 201475482 U CN201475482 U CN 201475482U
- Authority
- CN
- China
- Prior art keywords
- thermometer bulb
- gland
- bulb shell
- steel ball
- tie point
- 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 - Fee Related
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Abstract
A thermal bulb with a gland belongs to the technical field of heating valves and mainly comprises the gland, a thermal bulb casing, a sealing steel ball, a corrugated pipe and a bottom cover. The thermal bulb is characterized in that the gland is sleeved above the thermal bulb casing, and a steel ball is tightly pressed on the upper end surface of the thermal bulb casing.
Description
Technical field
A kind of thermometer bulb with gland belongs to the temperature control valve technical field.
Background technique
Existing, be widely used in the automatic temperature control valve on the radiator and the passive temperature control apparatus of other field, all by the band temperature transducer, self produce the thermometer bulb of mechanical thrust, promote the unlatching of valve or close.The technological deficiency of existing thermometer bulb is: after thermometer bulb injects organic solvent, small ball is pressed into the thermometer bulb shell again, blocks inlet, to reach the purpose that prevents that organic solvent from leaking; Owing to just the small ball envelope is pressed in very thin tank skin opening by pressure, work as ambient temperature during thermometer bulb uses and raise, when the thermometer bulb internal pressure increased, steel ball will be squeezed and jump, and caused the interior organic solvent of thermometer bulb to leak, and thermometer bulb lost efficacy, and caused thermostat valve to be scrapped.
Summary of the invention
Purpose of the present invention provides the thermometer bulb of being with gland.
Technological scheme of the present invention is achieved like this, and structure mainly comprises gland, tie point, sealed steel ball, thermometer bulb shell, bellows, bottom; Described bellows is installed in the interior central authorities of thermometer bulb and is tightly connected with bottom; The bottom of described bottom and thermometer bulb shell is tightly connected; In the described sealed steel ball press seal inlet on thermometer bulb shell upper-end surface, organic solvent; Described gland is enclosed within thermometer bulb shell top, tightly pushes down steel ball in the upper-end surface of thermometer bulb shell, and is connected with the thermometer bulb shell by tie point; The Placement of described tie point has two kinds: 1, adopt the spot welding moulding; 2, with the gluing type that is connected into of high strength.
The invention has the beneficial effects as follows that or else thermometer bulb can raise and the leakage of generation organic solvent by Yin Wendu.Also improved the finished product recovery rate in the thermometer bulb production process greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
In the accompanying drawing, 1 gland, 2 tie points, 3 steel balls, 4 thermometer bulb shells, 5 bellowss, 6 bottoms; Bellows compression movement direction when arrow is the temperature rising among the figure.
Embodiment
The specific embodiment of the present invention is seen accompanying drawing.Structure mainly comprises gland (1), tie point (2), sealed steel ball (3), thermometer bulb shell (4), bellows (5); Bottom (6); Bellows (5) is installed in the interior central authorities of thermometer bulb and is tightly connected with bottom (6); Bottom (6) is tightly connected with the bottom of thermometer bulb shell (4); In sealed steel ball (3) the press seal inlet on thermometer bulb shell (4) upper-end surface, organic solvent; Gland (1) is enclosed within thermometer bulb shell (4) top, tightly pushes down steel ball (3) in the upper-end surface of thermometer bulb shell (4), and is connected with thermometer bulb shell (4) by tie point (2); The Placement of tie point (2): A adopts the spot welding moulding, and B is directly with the gluing type that is connected into of high strength.Now in conjunction with the accompanying drawings embodiment is described below; Temperature range according to the thermometer bulb needs, preparation corresponding liquid organic solvent filling agent, and pour in the thermometer bulb by the inlet of thermometer bulb shell (4) upper-end surface, by certain pressure sealed steel ball (3) is squeezed in the inlet of thermometer bulb shell, again gland (1) is inserted in the top of thermometer bulb shell (4), be pressed on the top of inlet steel ball (3), the mode by electric welding forms tie point (2) with gland (1) and thermometer bulb shell spot welding together then; Perhaps directly use high strength glue that bottom (1) and thermometer bulb shell (4) are bonded as one and form tie point (2).When the ambient temperature of thermometer bulb raises, organic solvent vaporization in the thermometer bulb shell (4), causing wrapping internal pressure increases, the pressure that sealed steel ball (3) is located increases, but because gland (1) links into an integrated entity with thermometer bulb shell (4), the sealed steel ball of pressurized (3) pushes up not open gland (1), therefore can not extruded by pressure, and thermometer bulb no longer leaks; Pressure in the bag can only be oppressed bellows (5) and be shunk, and arrow among the direction of contraction such as the figure shrinks the mechanical force that is produced, and the coupling component that promotes downwards to be inserted in the bellows (5) produces displacement, thereby has realized the control to valve.Structure of the present invention has fundamentally avoided thermometer bulb in use to wrap the internal pressure increase because of ambient temperature raises, and will seal small ball and extrude the thermometer bulb shell, the defective that causes thermometer bulb to lose efficacy.
Claims (3)
1. thermometer bulb with gland, structure mainly comprises gland, tie point, sealed steel ball, thermometer bulb shell, bellows, bottom; Described bellows is installed in the interior central authorities of thermometer bulb and is tightly connected with bottom; The bottom of described bottom and thermometer bulb shell is tightly connected; In the described sealed steel ball press seal inlet on thermometer bulb shell upper-end surface, organic solvent; Described gland is enclosed within thermometer bulb shell top, tightly pushes down steel ball in the upper-end surface of thermometer bulb shell.
2. the thermometer bulb of band gland according to claim 1 is characterized in that bottom is connected with the thermometer bulb shell by tie point.
3. the thermometer bulb of band gland according to claim 1 is characterized in that the Placement of described tie point has two kinds: A, adopt the spot welding moulding; B is with the gluing type that is connected into of high strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201731371U CN201475482U (en) | 2009-08-26 | 2009-08-26 | Thermal bulb with gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201731371U CN201475482U (en) | 2009-08-26 | 2009-08-26 | Thermal bulb with gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475482U true CN201475482U (en) | 2010-05-19 |
Family
ID=42411732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201731371U Expired - Fee Related CN201475482U (en) | 2009-08-26 | 2009-08-26 | Thermal bulb with gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475482U (en) |
-
2009
- 2009-08-26 CN CN2009201731371U patent/CN201475482U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20100826 |