CN201016406Y - Relief valve - Google Patents
Relief valve Download PDFInfo
- Publication number
- CN201016406Y CN201016406Y CNU2007201056349U CN200720105634U CN201016406Y CN 201016406 Y CN201016406 Y CN 201016406Y CN U2007201056349 U CNU2007201056349 U CN U2007201056349U CN 200720105634 U CN200720105634 U CN 200720105634U CN 201016406 Y CN201016406 Y CN 201016406Y
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- CN
- China
- Prior art keywords
- bellows
- spool
- valve
- fixed
- utility
- 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 discloses a discharge valve, which comprises a valve base and a sleeve. The sleeve is arranged above the valve base. A three-way valve chamber is arranged inside the valve base. A first port of the valve chamber is connected with an inlet pipe; a second port of the valve chamber is connected with an outlet pipe; a third port is provided with a needle; a pressure regulation spring is arranged in the sleeve; the top of the spring is fixed to a top cover; the bottom is fixed with a top plate; steel balls are arranged under the top plate. The utility model also comprises a corrugated tube, which is enclosed on the top of the needle and is fixed with the needle and integrated into one piece with the needle. An opening of the corrugated tube is tightly coupled with the valve base; the valve base is provided with a clear opening; the clear opening is communicated with an inner chamber of the corrugated tube. The steel balls are arranged on the top of the corrugated tube. The utility model adopts the corrugated tube for seal; the opening of the corrugated tube is welded with the valve base; a sealed space is formed above the valve base. The structure dispenses with fittings, such as an auxiliary spring, a diaphragm and a diaphragm fixing seat and so on, and does not need such mechanisms as an auxiliary spring groove and so on; few fittings are used. The utility model has simple structure, is convenient to be processed, and the cost is low.
Description
[technical field]
The utility model relates to the air conditioner accessory, relates in particular to the adjusting unloading valve of crossing the employing sylphon seal structure of high voltage protective in the air conditioner.
[background technique]
The use of air conditioner is very extensive, in the office space, field such as family, teahouse, hotel is widely used.Air conditioner under normal circumstances reaches setting temperature meeting autostop; then start automatically again; but after the critical piece compressor of refrigeration (perhaps heating) system occurs unusually; can produce high pressure; compressor is jumped machine automatically; and generally in half an hour, can not start behind the jumping machine, the frequent starting of compressor causes damage easily simultaneously, seriously influences the working life of compressor.
For this reason, Chinese patent bulletin CN 1504710A has proposed a kind of pressure regulating Unloading valve of air conditioner, and a valve body is arranged, and valve body connects inlet tube and outer pipe, spool is installed in the valve body, spool has secondary spring, connects the diaphragm fixed base on its valve body, in the diaphragm fixed base diaphragm is installed, connect on the diaphragm fixed base and regulate tube, regulate in the tube pressure adjusting spring is installed, the top plug is arranged under the pressure adjusting spring, upper and lower and the top plug and spool of diaphragm contact.When air-conditioning system pressure did not reach the cracking pressure value of setting (setting), because pressure adjusting spring acts on diaphragm and withstands spool, unloading valve was in closed condition; And when air-conditioning system pressure reaches the cracking pressure value of setting, this moment, the fluid from inlet tube arrived in the following diaphragm fixed base from the valve pocket of valve body, and act on diaphragm, fluid force is greater than pressure adjusting spring pressure, make bullet on the diaphragm, secondary spring drives spool and rises, and moment is opened valve port, make fluid flow to low pressure line, reach the off-load purpose through outer pipe.
This unloading valve adopts diaphragm seal, needs to adopt a plurality of accessories such as secondary spring, diaphragm, diaphragm fixed base, and complex structure, difficulty of processing are also bigger.
[summary of the invention]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of unloading valve, uses accessory few, simple in structure, easy to process, and cost is low.
For achieving the above object, the utility model proposes a kind of unloading valve, comprise valve seat and sleeve, sleeve is arranged on the top of valve seat; Have the valve pocket of threeway in the valve seat, first port of valve pocket is connected to inlet tube, and second port is connected to outer pipe, is provided with spool in the 3rd port; Be provided with pressure adjusting spring in the sleeve, the upper end of pressure adjusting spring is fixed on the top cover, the lower end is fixed with top flat, top flat is arranged with steel ball, comprises that also bellows, bellows are enclosed within the top of spool and are fixed into one with spool, the bellows opening is connected with valve base sealing, have through hole on the valve seat, through hole communicates with the bellows inner chamber, and steel ball is arranged on the top of bellows.
As preferably, adopt welded structure to be connected and sealed between described bellows opening and the valve seat.
As preferably, the valve pocket of described threeway is a T shape cavity.
As preferably, the top of described spool is provided with groove, and bellows is pressed into the spool groove and spool is fixed into one.
As preferably, described bellows is provided with retainer ring outward, bellows and spool is fixed be integral.
As preferably, described bellows and spool directly welding are fixed into one.
As preferably, the top of described bellows and spool all is made as spherical shrinkage pool, and steel ball is arranged in this sphere shrinkage pool.
The beneficial effects of the utility model: the utility model adopts sylphon seal, and bellows is enclosed within the top of spool and makes one with spool 7, and bellows opening and valve seat welding form a seal space above valve seat.This incomplete structure accessories such as secondary spring, diaphragm, diaphragm fixed base, do not need mechanisms such as secondary spring groove yet, use accessory few, simple in structure, easy to process, cost is low.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of the utility model unloading valve;
Fig. 2 is the structural representation that bellows and spool are fixed into integrative-structure embodiment one in the utility model unloading valve;
Fig. 3 is the structural representation that bellows and spool are fixed into integrative-structure embodiment two in the utility model unloading valve;
Fig. 4 is the structural representation that bellows and spool are fixed into integrative-structure embodiment three in the utility model unloading valve;
Fig. 5 is the partial schematic diagram of the spherical shrinkage pool of bellows and spool top in the utility model unloading valve.
[embodiment]
Embodiment one:
Fig. 1 is the structural representation of the utility model unloading valve; Comprise valve seat 8 and sleeve 1, sleeve 1 is arranged on the top of valve seat 8; Have the valve pocket 10 of threeway in the valve seat 8, first port of valve pocket 10 is connected to inlet tube 9, the second ports and is connected in outer pipe 14, the three ports and is provided with spool 7; Be provided with pressure adjusting spring 2 in the sleeve 1, the upper end of pressure adjusting spring 2 is fixed on the top cover 3, the lower end is fixed with top flat 4, top flat 4 is arranged with steel ball 6, also comprises bellows 5, and bellows 5 is enclosed within the top of spool 7 and is fixed into one with spool 7, bellows 5 openings and valve seat 8 are tightly connected, have through hole 11 on the valve seat 8, through hole 11 communicates with bellows inner chamber 12, and steel ball 6 is arranged on the top of bellows 5.
Present embodiment adopts bellows 5 sealings, and bellows 5 is enclosed within the top of spool 7 and is fixed into one with spool 7, and bellows 5 openings and valve seat 7 welding form a seal space above valve seat 7.This incomplete structure accessories such as secondary spring, diaphragm, diaphragm fixed base, do not need mechanisms such as secondary spring groove yet, use accessory few, simple in structure, easy to process, cost is low.Adopt welded structure to be connected and sealed between described bellows 5 openings and the valve seat 8, welded structure is more firm, and sealing effect is more reliable.The valve pocket 10 of described threeway is T shape cavity, and is simple in structure.Described bellows 5 is made one with spool 7, makes bellows 5 more firm with combining of spool 7.
Fig. 5 is the partial schematic diagram of the spherical shrinkage pool of bellows and spool top in the utility model unloading valve.The top of described bellows 5 and spool 7 all is made as spherical shrinkage pool, and the shape of the shape of spherical shrinkage pool and steel ball 6 adapts, and steel ball 6 is arranged in this sphere shrinkage pool.
Fig. 2 is the structural representation that bellows and spool are fixed into integrative-structure embodiment one in the utility model unloading valve; The top of described spool 7 is provided with groove 15, and bellows 5 is pressed into spool groove 15 and is fixed into one with spool 7.This fixed structure is simple, and processing technology is also simplified.The height setting that its problem that should be noted that is a groove 15 is suitable, and it is fixed specifically can to come according to the size of pressure.
During original state, spool 7 is under the effect of pressure adjusting spring 2, with 13 sealings of off-load mouth.Fluid on pressure duct is from inlet tube 9 to valve pocket 10, arrive bellows inner chamber 12 through through hole 11, and when acting on bellows 5, during greater than the elastic force of pressure adjusting spring 2, make bullet on the bellows 5 at hydrodynamic pressure, and drive spool 7 and rise, spool 7 promptly breaks away from off-load mouth 13, make fluid by off-load mouth 13, flow to outer pipe 14, reach the purpose of off-load to low pressure line.When high-pressure duct system pressure reduces, at hydrodynamic pressure during less than the elastic force of pressure adjusting spring 2, at the effect lower valve core 7 of pressure adjusting spring 2 once more with 13 sealings of off-load mouth.
Embodiment two:
Fig. 3 is the structural representation that bellows and spool are fixed into integrative-structure embodiment two in the utility model unloading valve.Present embodiment and embodiment one difference only are bellows 5, and fixedly the all-in-one-piece mode is different with spool 7.Adopt retainer ring 16 in the present embodiment, retainer ring 16 is arranged on the outside of bellows 5, bellows 5 and spool 7 are fixed are integral.The fixed effect of present embodiment is good, but needs to increase in addition parts, and structure is complicated slightly.
Embodiment three:
Fig. 4 is the structural representation that bellows and spool are fixed into integrative-structure embodiment three in the utility model unloading valve; Present embodiment and the foregoing description one and two difference also are only to be bellows 5 fixedly the all-in-one-piece mode is different with spool 7.Present embodiment does not need groove 15 and retainer ring 16, and bellows 5 and spool 7 are directly welded, and structure is simpler, and fixed effect is also better, but processing technology is complicated slightly.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any structure after the utility model simple transformation is all belonged to protection domain of the present utility model.
Claims (7)
1. unloading valve comprises valve seat (8) and sleeve (1), and sleeve (1) is arranged on the top of valve seat (8); Have the valve pocket (10) of threeway in the valve seat (8), first port of valve pocket (10) is connected to inlet tube (9), and second port is connected to outer pipe (14), is provided with spool (7) in the 3rd port; Be provided with pressure adjusting spring (2) in the sleeve (1), the upper end of pressure adjusting spring (2) is fixed on the top cover (3), the lower end is fixed with top flat (4), top flat (4) is arranged with steel ball (6), it is characterized in that: also comprise bellows (5), bellows (5) is enclosed within the top of spool (7) and is fixed into one with spool (7), bellows (5) opening and valve seat (8) are tightly connected, have through hole (11) on the valve seat (8), through hole (11) communicates with bellows inner chamber (12), and steel ball (6) is arranged on the top of bellows (5).
2. unloading valve as claimed in claim 1 is characterized in that: adopt welded structure to be connected and sealed between described bellows (5) opening and the valve seat (8).
3. unloading valve as claimed in claim 1 is characterized in that: the valve pocket of described threeway (10) is a T shape cavity.
4. unloading valve as claimed in claim 1 is characterized in that: the top of described spool (7) is provided with groove (15), and bellows (5) is pressed into spool groove (15) and is fixed into one with spool (7).
5. unloading valve as claimed in claim 1 is characterized in that: described bellows (5) is provided with retainer ring (16) outward, bellows (5) and spool (7) is fixed be integral.
6. unloading valve as claimed in claim 1 is characterized in that: described bellows (5) directly welds with spool (7) and is fixed into one.
7. unloading valve as claimed in claim 1 is characterized in that: the top of described bellows (5) and spool (7) all is made as spherical shrinkage pool, and steel ball (6) is arranged in this sphere shrinkage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201056349U CN201016406Y (en) | 2007-01-18 | 2007-01-18 | Relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201056349U CN201016406Y (en) | 2007-01-18 | 2007-01-18 | Relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201016406Y true CN201016406Y (en) | 2008-02-06 |
Family
ID=39056892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201056349U Expired - Fee Related CN201016406Y (en) | 2007-01-18 | 2007-01-18 | Relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201016406Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537438A (en) * | 2012-01-14 | 2012-07-04 | 刘立文 | Gas explosion-protection device |
| CN104180029A (en) * | 2014-09-05 | 2014-12-03 | 上海冠龙阀门机械有限公司 | Screwing opening type check valve capable of balancing pressure automatically |
| CN104633193A (en) * | 2014-12-16 | 2015-05-20 | 太原航空仪表有限公司 | Pressure regulator capable of achieving water and gas separation and constant pressure difference |
| JP7431118B2 (en) | 2020-07-13 | 2024-02-14 | 株式会社鷺宮製作所 | pressure regulating valve |
-
2007
- 2007-01-18 CN CNU2007201056349U patent/CN201016406Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537438A (en) * | 2012-01-14 | 2012-07-04 | 刘立文 | Gas explosion-protection device |
| CN104180029A (en) * | 2014-09-05 | 2014-12-03 | 上海冠龙阀门机械有限公司 | Screwing opening type check valve capable of balancing pressure automatically |
| CN104633193A (en) * | 2014-12-16 | 2015-05-20 | 太原航空仪表有限公司 | Pressure regulator capable of achieving water and gas separation and constant pressure difference |
| CN104633193B (en) * | 2014-12-16 | 2017-08-15 | 太原航空仪表有限公司 | It is a kind of to realize aqueous vapor isolation and the constant pressure regulator of pressure difference |
| JP7431118B2 (en) | 2020-07-13 | 2024-02-14 | 株式会社鷺宮製作所 | pressure regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DUNAN ARTIFICIAL ENVIRONMENTAL APPARATUS CO., LTD Free format text: FORMER OWNER: DUNAN PRECISION INDUSTRY GROUP CO., LTD., ZHEJIANG Effective date: 20080229 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080229 Address after: Zhuji Industrial Zone, Zhejiang, China: 311835 Patentee after: Zhejiang Dun'an Artificial Environment Equipment Co., Ltd. Address before: Zhuji Industrial Zone, Zhejiang, China: 311835 Patentee before: Zhejiang Dun'an Precision Industries Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20140118 |