CN202789437U - liquid injection valve structure - Google Patents
liquid injection valve structure Download PDFInfo
- Publication number
- CN202789437U CN202789437U CN 201220315694 CN201220315694U CN202789437U CN 202789437 U CN202789437 U CN 202789437U CN 201220315694 CN201220315694 CN 201220315694 CN 201220315694 U CN201220315694 U CN 201220315694U CN 202789437 U CN202789437 U CN 202789437U
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- CN
- China
- Prior art keywords
- valve
- liquid
- needle
- liquid injection
- receiving cavity
- 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
The utility model relates to the technical field of air valves, in particular to a liquid injection valve structure which comprises a valve body where a containing cavity is formed inside, a liquid inlet, a liquid outlet and a valve opening. The containing cavity is correspondingly arranged with the liquid inlet in a linear mode. The liquid outlet is communicated with the liquid inlet through the valve opening. A valve rod is arranged in the containing cavity, a platen is fixedly arranged at the top end of the valve rod and a spring is arranged at the bottom of the containing cavity. A first press spring is arranged between the platen and a spring seat. A valve needle and a fixing seat are arranged in the liquid inlet. A second press spring is arranged between the valve needle and the fixing seat. The lower end of the valve rod is arranged to correspond to the top end of the valve needle. A temperature sensing power part is covered on the platen. The liquid injection valve structure is simple in structure, low in craft requirement and temperature of exhausted liquid is not affected by internal pressure.
Description
Technical field
The utility model relates to the air valve technical field, particularly a kind of liquid injection valve structure.
Background technique
When the delivery temperature of compressor in the refrigeration system excessively raises, can destroy the normal operation of refrigeration system, and can defective component, need a kind of liquid injection valve when temperature rise reaches specified delivery temperature, discharge the cooling in the compressor of the low refrigeration agent of some temperature.Existing liquid injection valve fills with full-liquid type volumetric expansion formula, and technological requirement is high; Fill and be used for the low pressure type of technological requirement, but its structure to be subject to the interference of valve internal pressure to the control point of delivery temperature, can not do stable effectively protection to the delivery temperature of compressor; So be necessary the structure of existing liquid injection valve is improved.
The model utility content
The purpose of this utility model is for the defective of prior art and deficiency, provide a kind of simple in structure, the liquid injection valve structure that discharge opeing is effective is set rationally.
For achieving the above object, the utility model is by the following technical solutions:
A kind of liquid injection valve structure described in the utility model, it comprises valve body, form receiving cavity in the described valve body, liquid entering hole, liquid port and valve port, described receiving cavity and the linearly corresponding setting of liquid entering hole, described liquid port is communicated with liquid entering hole by valve port, is provided with valve rod in the described receiving cavity, and valve stem tip is fixed with pressing plate, the receiving cavity bottom is provided with spring seat, is provided with stage clip one between described pressing plate and the spring seat; Be provided with needle and fixed base in the described liquid entering hole, be provided with stage clip two between described needle and the fixed base, described valve rod lower end becomes corresponding setting with the needle top; Described pressing plate is coated with the temperature-sensitive power unit.
Further, form receiving bore in the described valve body, described receiving bore is communicated in the receiving cavity bottom; Be provided with adjusting knob in the described receiving bore, described adjusting knob supports the bottom of being located at spring seat.
Further, fixedly be equipped with guide rod on the described needle, stretch out outside the needle top on described guide rod top, and described guide rod lower end is arranged in the through hole on the fixed base.
Further, described stage clip two is sheathed on the guide rod.
After adopting said structure, the utility model beneficial effect is: the utility model has effectively been realized simplifying the structure by said structure, technological requirement is low, and the discharge opeing temperature is not subjected to the interference of internal pressure, thus the utlity model has simple in structure, the advantage such as fabricating cost is low.
Description of drawings
Fig. 1 is overall structure schematic representation of the present utility model.
Among the figure:
1, temperature is transmitted part; 2, pressing plate; 3, temperature-sensitive power unit; 4, stage clip one;
5, receiving cavity; 6, liquid port; 7, valve body; 8, valve port;
9, needle; 10, fixed base; 11, liquid entering hole; 12, stage clip two;
13, valve rod; 14, spring seat; 15, adjusting knob; 16, receiving bore;
17, guide rod.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, a kind of liquid injection valve structure described in the utility model, it comprises valve body 7, forms receiving cavity 5 in the described valve body 7, liquid entering hole 11, liquid port 6, receiving bore 16 and valve port 8.Described valve body 7 is the utility model agent structure, is intensitometer, generally makes with metallic material.
Described receiving cavity 5 and the linearly corresponding setting of liquid entering hole 11, described liquid port 6 is communicated with liquid entering hole 11 by valve port 8; Particularly, liquid port 6 is communicated in the bottom of receiving cavity 5, and valve port 8 connects receiving cavity 5 and liquid entering hole 11 simultaneously.
Be provided with valve rod 13 in the described receiving cavity 5, valve rod 13 tops are fixed with pressing plate 2, and receiving cavity 5 bottoms are provided with spring seat 14, are provided with stage clip 1 between described pressing plate 2 and the spring seat 14, and the corresponding valve port 8 in valve rod 13 bottoms arranges.Described pressing plate 2 is coated with temperature-sensitive power unit 3.Be filled with in the described temperature-sensitive power unit 3 and have working medium thermodynamic property, that be fit to corresponding hydrojet temperature range, when temperature-sensitive power unit 3 temperature raise, working medium in the temperature-sensitive power unit 3 will expand, thereby give pressing plate 2 downward active force, when downward active force was greater than the elastic force of stage clip 1 on acting on pressing plate 2, pressing plate 2 and valve rod 13 moved down.During use, the temperature that temperature-sensitive power unit 3 is connected in the refrigeration system is transmitted part 1, and temperature is transmitted part 1 intrasystem temperature is reached temperature-sensitive power unit 3.
Be provided with needle 9 and fixed base 10 in the described liquid entering hole 11, be provided with stage clip 2 12 between described needle 9 and the fixed base 10, described valve rod 13 lower ends become corresponding setting with needle 9 tops.Originally needle 9 seals valve port 8 under the effect of stage clip 2 12, and liquid entering hole 11 is not communicated with liquid port 6, and the utility model is in closed condition.When the effect that is subject to temperature-sensitive power unit 3 when valve rod 13 moved down, valve rod 13 lower ends were butted on needle 9 tops, and with needle 9 to pressing down, needle 9 is overcoming stage clip 2 12 active forces, move down, liquid entering hole 11 is communicated with liquid port 6, and the utility model is in running order.
Fixedly be equipped with guide rod 17 on the preferred described needle 9 of the utility model, stretch out outside needle 9 tops on described guide rod 17 tops, and described guide rod 17 lower ends are arranged in the through hole on the fixed base 10, and described stage clip 2 12 is sheathed on the guide rod 17.When valve rod 13 moves down, valve rod 13 extruding guide rods 17, needle 9 moves down with guide rod 17, plays good leading role, and namely needle 9 can not vacillated now to the left, now to the right in folding process.
The above only is preferred embodiments of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (4)
1. liquid injection valve structure, it comprises valve body (7), it is characterized in that: form receiving cavity (5) in the described valve body (7), liquid entering hole (11), liquid port (6) and valve port (8), described receiving cavity (5) and the linearly corresponding setting of liquid entering hole (11), described liquid port (6) is communicated with liquid entering hole (11) by valve port (8), be provided with valve rod (13) in the described receiving cavity (5), valve rod (13) top is fixed with pressing plate (2), receiving cavity (5) bottom is provided with spring seat (14), is provided with stage clip one (4) between described pressing plate (2) and the spring seat (14); Be provided with needle (9) and fixed base (10) in the described liquid entering hole (11), be provided with stage clip two (12) between described needle (9) and the fixed base (10), described valve rod (13) lower end becomes corresponding setting with needle (9) top; Described pressing plate (2) is coated with temperature-sensitive power unit (3).
2. liquid injection valve structure according to claim 1 is characterized in that: form receiving bore (16) in the described valve body (7), described receiving bore (16) is communicated in receiving cavity (5) bottom; Be provided with adjusting knob (15) in the described receiving bore (16), described adjusting knob (15) supports the bottom of being located at spring seat (14).
3. liquid injection valve structure according to claim 2, it is characterized in that: the upper guide rod (17) that fixedly is equipped with of described needle (9), stretch out outside needle (9) top on described guide rod (17) top, and described guide rod (17) lower end is arranged in the through hole on the fixed base (10).
4. liquid injection valve structure according to claim 2, it is characterized in that: described stage clip two (12) is sheathed on the guide rod (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315694 CN202789437U (en) | 2012-06-30 | 2012-06-30 | liquid injection valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315694 CN202789437U (en) | 2012-06-30 | 2012-06-30 | liquid injection valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789437U true CN202789437U (en) | 2013-03-13 |
Family
ID=47816711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220315694 Expired - Fee Related CN202789437U (en) | 2012-06-30 | 2012-06-30 | liquid injection valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720845A (en) * | 2012-06-30 | 2012-10-10 | 奉化市合力控制器有限公司 | Structure of liquid injection valve |
| CN111594626A (en) * | 2019-02-20 | 2020-08-28 | 浙江三花制冷集团有限公司 | Temperature sensing driving device and flow regulating valve using same |
-
2012
- 2012-06-30 CN CN 201220315694 patent/CN202789437U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720845A (en) * | 2012-06-30 | 2012-10-10 | 奉化市合力控制器有限公司 | Structure of liquid injection valve |
| CN111594626A (en) * | 2019-02-20 | 2020-08-28 | 浙江三花制冷集团有限公司 | Temperature sensing driving device and flow regulating valve using same |
| CN111594626B (en) * | 2019-02-20 | 2023-05-16 | 浙江三花商用制冷有限公司 | Temperature-sensing driving device and flow regulating valve using same |
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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: 20130313 Termination date: 20170630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |