CN2161793Y - Automatic draw off valve for water tank of car - Google Patents
Automatic draw off valve for water tank of car Download PDFInfo
- Publication number
- CN2161793Y CN2161793Y CN 93218264 CN93218264U CN2161793Y CN 2161793 Y CN2161793 Y CN 2161793Y CN 93218264 CN93218264 CN 93218264 CN 93218264 U CN93218264 U CN 93218264U CN 2161793 Y CN2161793 Y CN 2161793Y
- Authority
- CN
- China
- Prior art keywords
- valve
- water tank
- spool
- spring
- memory alloy
- 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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- Temperature-Responsive Valves (AREA)
Abstract
The utility model relates to a water automatically discharging valve for the water tank of a car. The utility model is characterized in that a valve core is arranged in a valve body whose one end surface is provided with a pipe thread; one end of the valve core is provided with a memory alloy spring, and the other end is provided with a biasing mechanical spring. When the temperature of the water tank is high 5DEG. C, the memory alloy spring is stretched, and the valve is closed. When the temperature of the water tank is lower than 0DEG. C-5DEG. C, the memory alloy spring which is shortened loses traction force, the valve is opened through the biasing mechanical spring, and water is automatically discharged. The utility model which has the advantages of simple structure, and easy production can effectively prevent the water tank being frozen for guaranteeing the normal running of the car in winter.
Description
The utility model belongs to a kind of valve, particularly a kind of radiator automatic drain valve door.
At present, the radiator Draw off valve all adopts manual spherical valve.During winter driving, the back driver of stopping must emit valve open the cooling water in the water tank, with the caisson bursting by freezing.Again with valve closing, put into hot water before the driving, so that automobile starts rapidly.Its deficiency is, the open and close valve is manual by the driver fully, and troublesome poeration discharges water in case the driver forgets, water tank causes vehicle not move easily by bursting by freezing.In order to overcome above-mentioned shortcoming, the cooling water in the water tank is used antifreeze liquid instead, though can prevent the water tank bursting by freezing, common truck has been directed at has again started difficulty winter, and increased user cost.
The purpose of this utility model is to overcome deficiency of the prior art and a kind of radiator automatic drain valve door is provided.
The purpose of this utility model can realize by following measure:
The structure of radiator automatic drain valve door is; Adorning spool in valve body, an end of spool is overlapping memory alloy spring, and an end of its spring heads on valve body, and the other end heads on packing ring and the adjusting nut that is contained in spool; The other end suit of spool the biasing mechanical spring, and an end of its spring heads on the position-limited rack that is packed on the valve body, and the other end heads on packing ring and the positioning dowel that is contained on the spool.
There is pipe thread on the surface of memory alloy spring and valve body contact jaw.Spool is a plunger type.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the structural representation of radiator automatic drain valve door.
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail:
The structure of radiator automatic drain valve door as shown in Figure 1, at one end the surface has in the valve body 1 of pipe thread and is adorning plunger type spool 2, one end suit of spool memory alloy spring 3, one end of spring withstands on the valve body end of pipe thread, and the other end heads on packing ring 4 and the adjusting nut 5 that is contained on the spool.The other end of spool is being adorned biasing mechanical spring 6, and an end of its spring heads on screw 7 and is packed in position-limited rack 8 on the valve body, and the other end heads on packing ring 9 and the locating stud 10 that is contained on the spool.
During use, this valve is installed on the water tank osculum, shape memory alloy spring is placed in the water tank.When the water temperature of water tank was higher than 5 ℃, the memory alloy spring elongation pulled to the plunger type spool in the case, makes valve closing.Because the restoring force of the memory alloy spring of design is greater than more than 10 times of biasing mechanical spring elastic force, therefore, when water temperature was higher than 5 ℃, valve was always closed.When water tank temperature was reduced to 0 ℃～5 ℃, memory alloy spring shortened automatically, and its inside pulling force disappears, and biasing mechanical spring 6 pulls to the plunger type spool outside the case, makes valve opening, and water can flow out automatically.During car engine, add hot water, memory alloy spring extends again, with valve closing.After valve used a period of time, the decay of the memory effect of memory alloy descended the pressure of its memory alloy spring, and the sealing of valve reduces.Can screw nut this moment, and the pressure of memory alloy spring is increased, and it is normal that the sealing of valve is recovered.Thereby guarantee the reliability of valve long-term work.
The utility model compared with prior art has the following advantages:
Automatic draw off valve for water tank of car simple in structure is easy to make; Easy to use, be easy to adjust; Dependable performance can effectively prevent the water tank bursting by freezing, to guarantee the automobile normal operation in winter.
Claims (3)
1, a kind of radiator automatic drain valve door is characterized in that: adorning spool in the valve body, an end suit of spool memory alloy spring, and an end of its spring heads on valve body, and the other end heads on packing ring and the adjusting nut that is contained on the spool; The other end suit of spool the biasing mechanical spring, and an end of its spring heads on the position-limited rack that is packed on the valve body, and the other end heads on packing ring and the positioning dowel that is contained on the spool.
2, according to the said radiator automatic drain valve of claim 1 door, it is characterized in that: an end surfaces of valve body has pipe thread.
3, according to claim 1 or 2 said radiator automatic drain valve doors, it is characterized in that: spool is a plunger type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93218264 CN2161793Y (en) | 1993-07-10 | 1993-07-10 | Automatic draw off valve for water tank of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93218264 CN2161793Y (en) | 1993-07-10 | 1993-07-10 | Automatic draw off valve for water tank of car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2161793Y true CN2161793Y (en) | 1994-04-13 |
Family
ID=33797967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93218264 Expired - Fee Related CN2161793Y (en) | 1993-07-10 | 1993-07-10 | Automatic draw off valve for water tank of car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2161793Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421096A (en) * | 2017-07-31 | 2017-12-01 | 武汉科技大学 | A kind of air conditioner condensate water cycling and reutilization energy saver |
-
1993
- 1993-07-10 CN CN 93218264 patent/CN2161793Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421096A (en) * | 2017-07-31 | 2017-12-01 | 武汉科技大学 | A kind of air conditioner condensate water cycling and reutilization energy saver |
| CN107421096B (en) * | 2017-07-31 | 2019-12-10 | 武汉科技大学 | Air conditioner condensate water recycling energy-saving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |