CN205260856U - Stop valve - Google Patents
Stop valve Download PDFInfo
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- CN205260856U CN205260856U CN201521110460.6U CN201521110460U CN205260856U CN 205260856 U CN205260856 U CN 205260856U CN 201521110460 U CN201521110460 U CN 201521110460U CN 205260856 U CN205260856 U CN 205260856U
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- valve
- valve body
- stop valve
- sealing
- sealing ring
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Abstract
The utility model provides a stop valve, including the valve body of valve port has and set up in the inside valve rod of valve body, the valve rod can reciprocate in the valve body, its characterized in that, the valve rod with be provided with first sealing between the valve body, the tip of valve body is provided with the second sealing washer, the second sealing washer with form the second sealing between the valve rod. The utility model provides a stop valve because it is hard sealed to adopt the mode of second sealing washer to realize, can cancel the valve cap among the prior art, reduces spare part, and dustproof cap that non -metallic material made makes the cost greatly reduced who makes.
Description
Technical field
The utility model relates to valve technology field, particularly relates to a kind of for controlling the stop valve of refrigerant break-make.
Background technology
In air-conditioning system, stop valve is mainly used in connecting indoor set and off-premises station.
Please refer to Fig. 1, the structural representation of a kind of typical stop valve that Fig. 1 is prior art.
Stop valve comprise valve body 1 ' and valve rod 2 '; Wherein, valve body 1 ' left end offer first passage 11 ', lower end offer second channel 12 '; Valve rod 2 ' be located at valve body 1 ' inner chamber in, valve rod 2 ' be above provided with external screw thread, valve body 1 ' inner chamber wall be provided with valve rod 2 ' the internal thread that matches of external screw thread, thereby when valve rod 2 ' rotation, under the effect of screw thread pair, in valve body 1 ' inner chamber, move up and down, so as to close or be communicated with first passage 11 ' and second channel 12 '.
Before air conditioner is installed, rotation valve rod 2 ' move down, so that first passage 11 ' and second channel 12 ' in closed condition, disconnect by fluid passages such as refrigerants, after air conditioner is installed, rotation valve rod 2 again ' above move, so that first passage 11 ' and second channel 12 ' in connected state, be communicated with by fluid passages such as refrigerants.
Valve body 1 ' the mode of top by threaded engagement and bonnet 4 ' be connected, therefore need 2 ' time of operating valve lever at every turn, needs first, by bonnet 4 ' back out, take time and effort. And, in order to prevent valve rod 2 ' open valve excessively from valve body 1 ' inside fly out, cause personal injury, on the inwall at valve body 1 ' top, be provided with back-up ring 3 ', spacing to valve rod 2 ' carry out, due to back-up ring 3 ' be independent parts, in the time of assembling, can there is neglected loading or assemble phenomenon not in place, and in this case, still can likely produce the phenomenon of valve rod 2 ' fly out from valve body 1 ' inside because of system pressure.
Bonnet 4 ' with valve body 1 ' for being threaded, the material of bonnet adopts brass conventionally, for proof strength, require the connecting portion of bonnet and valve body to have certain thickness, therefore increased the weight of valve body and the weight of bonnet, has increased material cost.
Therefore, how improving existing stop valve structure, guarantee security, prevent that valve rod from flying out from valve inner, and reduce costs, is those skilled in the art's technical problems urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of stop valve, and this stop valve can reduce material cost, can ensure handling safety simultaneously, and product reliability is high.
For solving the problems of the technologies described above, the utility model provides a kind of stop valve, comprise the valve body with valve port and the valve rod that is arranged at described valve inner, described valve rod can move up and down in described valve body, it is characterized in that, between described valve rod and described valve body, be provided with the first sealing, the end of described valve body is provided with the second sealing ring, between described the second sealing ring and described valve rod, forms the second sealing.
Described the first sealing is to be arranged on the groove of described valve rod outer peripheral face and to be placed on the first sealing ring in described groove.
The top of described valve rod is provided with the inclined-plane of taper, between the contact part of described the second sealing ring and described inclined-plane, matches to form sealing.
Between described the second sealing ring and described valve body by being welded and fixed.
Described the second sealing ring comprises large footpath section and path section and is formed on the auxiliary section between described large footpath section and path section.
The stage portion arranging on the internal perisporium of described auxiliary section and described valve body coordinates.
The outside of described valve body is also provided with dust cap, and described dust cap adopts nonmetallic materials to make, and is sleeved on the outside of described valve body.
On the inwall of described dust cap, be provided with some reinforcements.
It is cylindric that described valve body is substantially, and be extended with first passage and second channel on the circumference side of described valve body.
The main part cross section of described valve body is rectangular.
The stop valve that the utility model provides, because the mode that adopts the second sealing ring has realized hard sealing, can cancel bonnet of the prior art, reduces parts, and the dust cap that nonmetallic materials are made reduces the cost of manufacturing greatly. Due to the cancellation of bonnet, make the further attenuate of thickness at valve body top, the weight of valve body is reduced, further reduce cost. And in the time that maintenance air-conditioning or filled refrigerant need operating valve lever at every turn, do not need to back out again bonnet, and only need to take off dust cap with hand, time saving and energy saving, even and the dust cap taking off is lost, the second sealing ring still can play the effect of secondary seal, has avoided the hidden danger that stop valve is leaked outside because of the sealing ring frostbite of the first sealing.
Brief description of the drawings
Fig. 1 is the structural representation of existing a kind of typical stop valve;
Fig. 2 is the structural representation of stop valve that the utility model provides the first embodiment;
Fig. 3 is the structural representation of stop valve that the utility model provides the first embodiment.
Detailed description of the invention
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 2, Fig. 2 is the structural representation of stop valve that the utility model provides the first embodiment.
This stop valve disconnects coolant path before the machine of installing an air-conditioner, install an air-conditioner after machine and again coolant path is communicated with, or in the time that needs fill refrigerant to refrigeration system, first operating valve lever, stop valve is closed, after having filled, then operating valve lever, stop valve is opened, be can be used as one and can operate manual switch valve use.
This stop valve comprises valve body 10 and valve rod 20; Wherein, it is cylindric that valve body 10 is substantially, and be extended with first passage 11 and second channel 12 on its circumference side, and both are communicated with by valve port 13; Valve rod 20 is located at the inner chamber of valve body 10, can move up and down to open or close described valve port 13, to be communicated with or cut-out first passage 11 and second channel 12.
Conventionally, valve rod 20 coordinates by screw thread pair with valve body 10 inner chambers, utilizes screw thread pair to realize the movement of valve rod 20. For the ease of operating valve lever 20, be also provided with operating portion 203 in the upper end of valve rod 20, particularly, operating portion 203 can be interior hexagonal structure, die nut easy to use like this operates.
For convenience of fill refrigerant in air conditioner, this stop valve can also comprise filled structure. This filled structure comprises the filled end 14 that is made as one with valve body 10, and this concrete structure that fills end 14 can be understood with reference to prior art, and the utility model does not limit the concrete structure that fills end. Certainly, fill structure nonessential being arranged on stop valve, only need to realize the function that can fill to system refrigerant in the time that stop valve is closed.
Valve rod 20 is the tubular parts of cardinal principle, is provided with the first sealing at its outer peripheral face, in present embodiment, is to offer groove at its outer peripheral face, and in groove, places the first sealing ring 201. Like this, in the time that valve rod 20 moves up and down along the inner chamber of valve body 10, the first sealing ring 201 can make to keep sealing state between two parts. In order to realize in the time moving to extreme position on valve rod 20, can form secondary seal, top at valve rod 20 is also provided with the second sealing, particularly, the inclined-plane 202 of a taper can be set at the top of valve rod 20, like this, in the time moving to top on valve rod 20, inclined-plane 202 can match with the second sealing ring 30 that is arranged on valve body 10 ports, forms sealing.
It is cylindric that the second sealing ring 30 is step, specifically can adopt metal material processing to form. Formed by large footpath section 301 and path section 302, between large footpath section 301 and path section 302, form auxiliary section 303, the second sealing rings 30 and be fixed by auxiliary section 303 and valve body. Its inside has contact part 304, for contacting with the inclined-plane 202 of valve rod 20, to realize hard sealing.
On the internal perisporium of the upper end 101 of valve body 10, be provided with stage portion 102, for matching with the auxiliary section 303 of the second sealing ring 30. Particularly, in the time of assembling, valve rod 20 is packed into from the top of valve body 10, by the operating portion 203 of operating valve lever 20, valve rod 20 is gone to the foot of valve body 10, be pressed into the second sealing ring 30, and by the mode of welding, the second sealing ring 30 be fixed on valve body 10.
In the outside of valve body 10, be also provided with dust cap 40, dust cap 40 can adopt the nonmetallic materials such as plastics by injection molded, is sleeved on the top of valve body 10, prevents that dust from entering stop valve inside. In order to make can to stablize and coordinate between dust cap 40 and valve body 10, some reinforcements can also be set on the inwall of dust cap 40, this reinforcement can form in the process of injection molded simultaneously.
The valve rod of present embodiment packs valve body into from top, and valve rod is gone to foot and be pressed into again the second sealing ring 30, welding valve component and the second sealing ring, pad is few. In the time moving on to top on valve rod 20, the inclined-plane 202 on valve rod 20 forms line with the contact part 304 on the second sealing ring 30 and contacts hard sealing. Thereby outside the first sealing, also realize secondary seal, made sealing property more reliable.
And because the mode that adopts the second sealing ring has realized hard sealing, just can cancel bonnet of the prior art, and reducing parts, the dust cap that nonmetallic materials are made reduces the cost of manufacturing greatly. Due to the cancellation of bonnet, make the further attenuate of thickness at valve body top, the weight of valve body is reduced, further reduce cost.
And in the time that maintenance air-conditioning or filled refrigerant need operating valve lever at every turn, do not need to back out again bonnet, and only need to take off dust cap with hand, time saving and energy saving, even and the dust cap taking off is lost, the second sealing ring still can play the effect of secondary seal, has avoided the hidden danger that stop valve is leaked outside because of the sealing ring frostbite of the first sealing.
Please refer to Fig. 3, Fig. 3 is the structural representation of stop valve that the utility model provides the second embodiment.
The difference of the second embodiment and the first embodiment is, its profile that is used in valve body is square stop valve, particularly, main part 103 cross sections of valve body 10 are rectangular, and two taken over and 15/16 be all arranged in two planes of this rectangle, and in the direction along central axis the certain distance in interval.
The structure of the end 101 of valve rod 20, the second sealing ring 30 and valve body 10 in the present embodiment is all identical with the first embodiment, and obviously, the technique effect described in the first embodiment is equally also applicable to the present embodiment, and this is no longer going to repeat them.
Above a kind of stop valve structure provided by the utility model is described in detail. Applied specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof. Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. a stop valve, comprise there is valve port (13) valve body (10) and be arranged atThe valve rod (20) that described valve body (10) is inner, described valve rod (20) can be in described valve body (10)Inside move up and down, it is characterized in that, between described valve rod (20) and described valve body (10), establishBe equipped with the first sealing, the end (101) of described valve body (10) is provided with the second sealing ring (30),Between described the second sealing ring (30) and described valve rod (20), form the second sealing.
2. stop valve as claimed in claim 1, is characterized in that, described the first sealingFor being arranged on the groove of described valve rod (20) outer peripheral face and being placed on first in described grooveSealing ring (201).
3. stop valve as claimed in claim 1, is characterized in that, described valve rod (20)Top be provided with the inclined-plane (202) of taper, the contact part (304) of described the second sealing ring (30)And described inclined-plane matches to form sealing between (202).
4. stop valve as claimed in claim 3, is characterized in that, described the second sealing ring(30) and between described valve body (10) by being welded and fixed.
5. stop valve as claimed in claim 4, is characterized in that, described the second sealing ring(30) comprise large footpath section (301) and path section (302) and be formed on described large footpath section (301)And auxiliary section (303) between path section (302).
6. stop valve as claimed in claim 5, is characterized in that, described auxiliary section (303)Coordinate with the stage portion (102) arranging on the internal perisporium of described valve body (10).
7. stop valve as claimed in claim 1, is characterized in that, described valve body (10)Outside be also provided with dust cap (40), described dust cap (40) adopt nonmetallic materials make,And be sleeved on the outside of described valve body (10).
8. stop valve as claimed in claim 7, is characterized in that, described dust cap (40)Inwall on be provided with some reinforcements.
9. the stop valve as described in claim 1 or 7, is characterized in that, described valve body (10)Substantially be cylindric, and be extended with first passage (11) on the circumference side of described valve body (10)And second channel (12).
10. the stop valve as described in claim 1 or 7, is characterized in that, described valve body (10)Main part (103) cross section rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521110460.6U CN205260856U (en) | 2015-12-28 | 2015-12-28 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521110460.6U CN205260856U (en) | 2015-12-28 | 2015-12-28 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205260856U true CN205260856U (en) | 2016-05-25 |
Family
ID=56002385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521110460.6U Active CN205260856U (en) | 2015-12-28 | 2015-12-28 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205260856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006243A (en) * | 2017-11-30 | 2018-05-08 | 李朝洁 | A kind of anti-leak pipeline valve heat insulation sleeve |
-
2015
- 2015-12-28 CN CN201521110460.6U patent/CN205260856U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006243A (en) * | 2017-11-30 | 2018-05-08 | 李朝洁 | A kind of anti-leak pipeline valve heat insulation sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Zhejiang city of Shaoxing province Xinchang County Mei Zhu Industrial Park Zhejiang three flower Limited by Share Ltd Patentee before: Zhejiang Sanhua Group Co., Ltd. |