CN203272140U - Refrigeration compressor with check function - Google Patents
Refrigeration compressor with check function Download PDFInfo
- Publication number
- CN203272140U CN203272140U CN201220504071.1U CN201220504071U CN203272140U CN 203272140 U CN203272140 U CN 203272140U CN 201220504071 U CN201220504071 U CN 201220504071U CN 203272140 U CN203272140 U CN 203272140U
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- cavity
- compressor
- guide sleeve
- check function
- 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
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model relates to a refrigerant compressor with a check function. The refrigerant compressor comprises a compressor housing, a support frame, a pressing plate, and a gas exhaust port, wherein a cavity is arranged inside the compressor housing, the support frame is arranged on the upper portion of the cavity, a guide sleeve is arranged on the support frame, the pressing plate is arranged on the lower portion of the cavity, the upper surface of the pressing plate is provided with a guide rod, the guide rod can be movably arranged inside the guide sleeve, a spring is arranged between the end portion of the guide rod and the bottom portion of the guide sleeve, the gas exhaust port is arranged on the compressor housing, and is communicated with the cavity, and communication of the gas exhaust port and the cavity can be closed when the pressing plate moves downward. According to the refrigerant compressor with the check function, the pressing plate is arranged inside the cavity, and communication of the gas exhaust port and the cavity can be closed when the pressing plate moves downward, such that shutting-off reverse rotation of the compressor is effectively prevented so as to solve a series of problems caused by reverse rotation. The refrigerant compressor has characteristics of simple structure, and easy installation and maintenance.
Description
Technical field
The utility model relates to a kind of improvement of refrigeration compressor, and is particularly a kind of economic and practical, simple in structure and be convenient to the refrigeration compressor with check function of installation and maintenance, belongs to technical field of refrigeration compressors.
Background technique
Refrigeration compressor is the core of refrigeration system; during compressor operating; low-temp low-pressure gas is converted to high temperature and high pressure gas; gas is flowed to the high pressure side by low voltage side; in the moment of compressor shutdown; because the high low pressure path still is communicated with, pressurized gas low-pressure gas one side that flows backwards back causes compressor to reverse.For a long time, the reverse problem after compressor shutdown can not get very perfect solution always, and take single screw compressor as example, compressor inverse is quoted the problem of sending out and mainly contained: thus 1. the wearing and tearing of the spider piece of refrigeration compressor reduce the performance of compressor; 2. spider piece is loosening even comes off, and makes the compressor cisco unity malfunction; 3. the rapid releasing of height pressure reduction even forms reverse differential pressure, and the oil in oil-way system is refluxed rapidly, and when making to a certain extent next start, each operative components can not get sufficient lubrication, has reduced the working life of compressor.Although existing machinery or electronics anti-reversal method can be realized anti-reverse, these methods or cost are higher, less economical, or difficulty, complex operation are installed, and also have some to be not easy to safeguard, have reduced the reliability of unit.For this reason, a kind of economic and practical, simple in structure and be convenient to the refrigeration compressor with check function of installation and maintenance in the urgent need to developing.
The model utility content
The utility model purpose be proposed in order to overcome the deficiencies in the prior art a kind of economic and practical, simple in structure and be convenient to the refrigeration compressor with check function of installation and maintenance.
For achieving the above object, the technical solution adopted in the utility model is: a kind of refrigeration compressor with check function comprises compressor housing, supporting frame, pressing plate, relief opening; Be provided with cavity in described compressor housing; Support frame as described above is arranged on the top of cavity; Be provided with guide sleeve on support frame as described above; Described pressing plate is arranged on the bottom of cavity; Be provided with guide rod on the upper surface of described pressing plate; Described guide rod is arranged in guide sleeve movably; Be provided with spring between the end of described guide rod and the bottom of guide sleeve; Described relief opening is arranged on compressor housing, and described relief opening is communicated with cavity; When described pressing plate moves downward, can seal being communicated with of relief opening and cavity.
Preferably, be provided with pore on support frame as described above, described pore is communicated with refrigeration system and guide sleeve.
Preferably, be provided with seal ring on the lower surface of described pressing plate, the tightness when increasing being communicated with of pressing plate sealing relief opening and cavity.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Refrigeration compressor with check function of the present utility model is provided with pressing plate in cavity, when described pressing plate moves downward, can seal being communicated with of relief opening and cavity, has effectively prevented the compressor shutdown reverse, reverses thereby solved the series of problems that produces; The utility model uses spring to coordinate guide sleeve and directional post, and is furnished with seal ring, good reliability on the lower surface of pressing plate; The utility model is simple in structure, is convenient to installation and maintenance.
Description of drawings
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is a kind of normal working schematic diagram with refrigeration compressor of check function of the present utility model;
Accompanying drawing 2 is a kind of non-return view with refrigeration compressor of check function of the present utility model;
Wherein: 1, compressor housing; 2, supporting frame; 3, pressing plate; 4, seal ring; 5, spring; 6, relief opening; 7, guide sleeve; 8, guide rod; 9, pore.
Embodiment
Be depicted as a kind of refrigeration compressor with check function described in the utility model as accompanying drawing 1,2, comprise compressor housing 1, supporting frame 2, pressing plate 3, relief opening 6; Be provided with cavity (not marking) in described compressor housing 1; Support frame as described above 2 is arranged on the top of cavity; Be provided with guide sleeve 7 on support frame as described above 2; Described pressing plate 3 is arranged on the bottom of cavity; Be provided with guide rod 8 on the upper surface of described pressing plate 3; Described guide rod 8 is arranged in guide sleeve 7 movably; Be provided with spring 5 between the bottom of the end of described guide rod 8 and guide sleeve 7; Described relief opening 6 is arranged on compressor housing 1, and described relief opening 6 is communicated with cavity; When described pressing plate 3 moves downward, can seal being communicated with of relief opening 6 and cavity; Be provided with pore 9 on support frame as described above 2, described pore 9 is communicated with refrigeration system and guide sleeve 7; Be provided with seal ring 4 on the lower surface of described pressing plate 3, the tightness when increasing being communicated with of pressing plate sealing relief opening 6 and cavity.
Working principle with refrigeration compressor of check function described in the utility model is: when refrigeration compressor works, utilize exhaust pressure to push pressing plate 3 open, be in open mode this moment, spring 5 is in compressive state, and pore 9 communicates guide sleeve 7 and refrigeration system, pressing plate is opened rapider; When refrigeration compressor is shut down; the gravity of the elastic force that resets due to spring 5 and pressing plate 3 itself; pressing plate 3 drops on relief opening 6; and pore 9 communicates guide sleeve 7 and refrigeration system; pressing plate 3 cuts out rapider, and high side pressure also acts on pressing plate 3, pressing plate 3 is pressed on relief opening 6 positions; thereby sealing relief opening 6 is communicated with cavity, prevents that high pressure draught from refluxing.
Refrigeration compressor with check function of the present utility model is provided with pressing plate in cavity, when described pressing plate moves downward, can seal being communicated with of relief opening and cavity, has effectively prevented the compressor shutdown reverse, reverses thereby solved the series of problems that produces; The utility model uses spring to coordinate guide sleeve and directional post, and is furnished with seal ring, good reliability on the lower surface of pressing plate; The utility model is simple in structure, is convenient to installation and maintenance.
Be only below concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, within all dropping on the utility model rights protection scope.
Claims (3)
1. the refrigeration compressor with check function, comprise compressor housing, supporting frame, pressing plate, relief opening; Be provided with cavity in described compressor housing; Support frame as described above is arranged on the top of cavity; It is characterized in that: be provided with guide sleeve on support frame as described above; Described pressing plate is arranged on the bottom of cavity; Be provided with guide rod on the upper surface of described pressing plate; Described guide rod is arranged in guide sleeve movably; Be provided with spring between the end of described guide rod and the bottom of guide sleeve; Described relief opening is arranged on compressor housing, and described relief opening is communicated with cavity; When described pressing plate moves downward, can seal being communicated with of relief opening and cavity.
2. the refrigeration compressor with check function according to claim 1, is characterized in that: be provided with pore on support frame as described above, described pore connection refrigeration system and guide sleeve.
3. the refrigeration compressor with check function according to claim 1 and 2 is characterized in that: be provided with seal ring on the lower surface of described pressing plate, the tightness when increasing being communicated with of pressing plate sealing relief opening and cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220504071.1U CN203272140U (en) | 2012-09-29 | 2012-09-29 | Refrigeration compressor with check function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220504071.1U CN203272140U (en) | 2012-09-29 | 2012-09-29 | Refrigeration compressor with check function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272140U true CN203272140U (en) | 2013-11-06 |
Family
ID=49502567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220504071.1U Expired - Fee Related CN203272140U (en) | 2012-09-29 | 2012-09-29 | Refrigeration compressor with check function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754177A (en) * | 2022-04-07 | 2022-07-15 | 大连大学 | Exhaust check valve for variable frequency scroll compressor |
-
2012
- 2012-09-29 CN CN201220504071.1U patent/CN203272140U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754177A (en) * | 2022-04-07 | 2022-07-15 | 大连大学 | Exhaust check valve for variable frequency scroll compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201209526Y (en) | Large displacement horizontal opposition type high pressure plunger pump | |
| CN202560256U (en) | Plug-in type stand column hydraulic control one-way valve | |
| CN202007768U (en) | Diaphragm breakage alarm device for diaphragm compressor | |
| CN203516304U (en) | Excavator big arm energy regenerating device with potential energy recovery device | |
| CN203272140U (en) | Refrigeration compressor with check function | |
| CN203395296U (en) | Combined-type spherical surface valve | |
| CN202561220U (en) | Improved hydraulic plate valve | |
| CN203964472U (en) | Air-conditioning system | |
| CN202732803U (en) | Spring reset type water turbine oil brake | |
| CN202325566U (en) | High-flow pilot operated check valve | |
| CN201884233U (en) | Pneumatic reciprocating pump | |
| CN202007758U (en) | Lubricating oil pressure automatic control device for diaphragm compressor | |
| CN203997769U (en) | The hermetically-sealed construction of mineral powder hoisting machine housing | |
| CN205012978U (en) | Poor step of sharp intelligent oil production device in pit | |
| CN203100471U (en) | Vacuum-pumps pipeline connection system for dual-pressure condenser | |
| CN203565182U (en) | Jigging machine | |
| CN201763301U (en) | Air-balancing assembly of air-balancing pumping unit | |
| CN201800297U (en) | Vacuum system of solar module laminating machine | |
| CN203895285U (en) | Circuit breaker system equipped with energy accumulator | |
| CN203640780U (en) | Turbine self-starting oil supply device | |
| CN201953355U (en) | Sleeved oil well balancer | |
| CN205136676U (en) | Machinery push type dislocation switch | |
| CN203413326U (en) | Pneumatic lubricating pump special for oil-gas lubricating system | |
| CN207645365U (en) | A kind of device for maintaining Dry-ash System compressed air pressure to stablize | |
| CN204755019U (en) | Glib valves of marine large -scale engine cylinder grease gun |
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: 20131106 Termination date: 20210929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |