CN220118783U - Energy-saving piston compressor valve plate subassembly of making an uproar falls - Google Patents
Energy-saving piston compressor valve plate subassembly of making an uproar falls Download PDFInfo
- Publication number
- CN220118783U CN220118783U CN202321010576.7U CN202321010576U CN220118783U CN 220118783 U CN220118783 U CN 220118783U CN 202321010576 U CN202321010576 U CN 202321010576U CN 220118783 U CN220118783 U CN 220118783U
- Authority
- CN
- China
- Prior art keywords
- valve plate
- air suction
- waist
- exhaust
- hole
- 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.)
- Active
Links
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000001179 sorption measurement Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000013459 approach Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Check Valves (AREA)
Abstract
The utility model relates to the technical field of compressors and discloses a noise-reducing and energy-saving valve plate assembly of a piston compressor, which comprises a valve plate, a plurality of suction valve plate assemblies and a plurality of discharge valve plate assemblies; the middle part of the air suction valve plate is provided with a through groove; the valve plate is provided with a plurality of waist-shaped grooves, and each waist-shaped groove is positioned between the corresponding exhaust hole and the corresponding screw; the waist-shaped groove is sleeved with a waist-shaped rubber ring, the lower bottom surface of the exhaust valve plate is pressed against the waist-shaped rubber ring, and the waist-shaped rubber ring is slightly higher than the valve plate in a natural state. Through set up logical groove and set up waist type groove in the below region that the valve plate is located the discharge valve piece on the valve plate that breathes in, through reducing the area of contact between valve plate and the valve plate that breathes in, the discharge valve piece, noise that produces when can effectively reducing when valve plate, discharge valve piece hit the valve plate and effectively reduce resistance when valve plate, discharge valve piece that breathe in break away from the valve plate to reduce the energy consumption.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a valve plate assembly of a noise-reducing and energy-saving piston compressor.
Background
The existing valve plate assembly of the piston compressor comprises a valve plate, a plurality of exhaust valve plate assemblies and an intake valve plate assembly, when a piston is far away from the valve plate, the intake valve plate is separated from the valve plate, and refrigerant enters a cylinder hole through an air inlet hole in the valve plate, so that the air suction work is completed, and when the piston is close to the valve plate, the refrigerant in the cylinder hole is compressed to reopen the exhaust valve plate, so that the refrigerant is separated from the valve plate, and the air suction work is completed; in the circulation process of air intake and exhaust, the air intake valve plate and the exhaust valve plate reciprocally strike the valve plate, so that the generated noise is larger; meanwhile, the compressor is provided with lubricating oil during operation, and the air suction valve plate and the air discharge valve plate can be tightly adsorbed on the valve plate by the lubricating oil, so that the resistance of opening the air suction valve plate during air suction and the resistance of opening the air discharge valve plate during air discharge are increased, and the energy consumption is increased.
Disclosure of Invention
The utility model aims to provide a noise-reducing and energy-saving valve plate assembly of a piston compressor, which is characterized in that through grooves are formed in an air suction valve plate, waist-shaped grooves are formed in a region, below an air discharge valve plate, of the valve plate, and the contact area between the valve plate and the air suction valve plate and between the valve plate and the air discharge valve plate is reduced, so that noise generated when the air suction valve plate and the air discharge valve plate strike the valve plate can be effectively reduced, resistance when the air suction valve plate and the air discharge valve plate are separated from the valve plate can be effectively reduced, and energy consumption is reduced.
The technical aim of the utility model is realized by the following technical scheme:
a noise-reducing and energy-saving valve plate assembly of a piston compressor comprises a valve plate, wherein a plurality of air suction holes and a plurality of air exhaust holes are formed in the valve plate; the valve plate is fixedly provided with a plurality of air suction valve plate assemblies which are in one-to-one correspondence with the plurality of air suction holes and a plurality of air discharge valve plate assemblies which are in one-to-one correspondence with the plurality of air discharge holes; the air suction valve block assembly comprises an air suction valve block, one end of the air suction valve block is pressed against the lower end face of the corresponding air suction hole, the other end of the air suction valve block is inserted and sleeved on two positioning pins, and the positioning pins are inserted and sleeved on corresponding positioning pin holes on the valve plate; a through groove is formed in the middle of the air suction valve plate;
the exhaust valve plate assembly comprises a limit valve plate and an exhaust valve plate which are arranged up and down, one end of the exhaust valve plate is pressed against the upper end face of the corresponding exhaust hole, and one end of the limit valve plate above the exhaust hole is obliquely tilted; the other end of the exhaust valve plate and the other end of the limit valve plate are fixed on the valve plate through screws and nuts; the valve plate is provided with a plurality of waist-shaped grooves, and each waist-shaped groove is positioned between the corresponding exhaust hole and the corresponding screw; the waist-shaped groove is sleeved with a waist-shaped rubber ring, the lower bottom surface of the exhaust valve plate is pressed against the waist-shaped rubber ring, and the waist-shaped rubber ring is slightly higher than the valve plate in a natural state.
Through the technical scheme, the through grooves are formed in the air suction valve plate, so that the contact area between the air suction valve plate and the valve plate can be reduced, and the noise generated when one end of the air suction valve plate repeatedly hits the valve plate is reduced; meanwhile, as the contact area between the air suction valve plate and the valve plate is reduced, the adsorption capacity of the valve plate to the air suction valve plate is also reduced due to the existence of hydraulic oil, so that the idle work of the air suction valve plate for overcoming the adsorption force of the valve plate is reduced, and the energy saving is realized;
through set up waist type rubber circle in the discharge valve piece below, waist type rubber circle can provide an ascending support and buffering to the discharge valve piece through the deformation to reduce the noise that produces when the discharge valve piece hits the valve plate, can reduce the area of contact between discharge valve piece and the valve plate through waist type rubber circle, thereby further reduce noise and valve plate to the adsorption affinity size of discharge valve piece, reduce the resistance size of discharge valve piece and valve plate separation, thereby play energy-conserving effect.
The utility model is further arranged to: a first sinking groove which is coaxially arranged with the upper end face of the exhaust hole is formed on the upper end face of the exhaust hole;
the lower end face of the air suction hole is provided with a second sinking groove which is arranged coaxially with the air suction hole.
According to the technical scheme, the first sinking groove is arranged on the outer side of the exhaust hole, so that the contact area between the end part of the exhaust valve plate and the end face of the exhaust hole can be reduced, and the contact area between the exhaust valve plate and the valve plate can be further reduced; through setting up the second heavy groove at the suction port outgoing, can reduce the area of contact of suction valve block tip and suction port tip terminal surface to further reduce the noise and further reduce the adsorption affinity of valve plate to suction valve block, exhaust valve plate, make things convenient for the resistance of opening of suction valve block, exhaust valve block, reduce unnecessary idle work.
The utility model is further arranged to: two locating pins inserted on the same air suction valve plate are inserted in through holes at two ends of the elastic supporting sheet, the middle part of the elastic supporting sheet is arched downwards, and two ends of the elastic supporting sheet are pressed against the air suction valve plate above the elastic supporting sheet.
Through above-mentioned technical scheme, through the middle arch setting of elastic support thin slice, thereby will open to both ends owing to elastic support thin slice will resume deformation to provide an outside power to two locating pins respectively, thereby can make the locating pin closely on a lateral wall of locating pin hole, thereby prevent the locating pin and break away from the valve plate through the frictional force between locating pin and the locating pin hole, thereby further prevent that the suction valve block from coming off from the valve plate, make things convenient for later stage valve plate subassembly and compressor cylinder body's assembly work.
The utility model is further arranged to: one end of the air suction valve plate, which is far away from the locating pin, is provided with a supporting lug which is pressed against a buffer component positioned at the upper end of the air suction valve plate, and the buffer component is arranged on the valve plate.
The buffer component can provide a buffer effect for the supporting lugs, so that noise generated by striking the valve plate when one end of the air suction valve plate approaches the valve plate is reduced.
The utility model is further arranged to: a plurality of rectangular counter bores with openings at the lower sides, which are in one-to-one correspondence with the air suction holes, are formed on the valve plate, and are positioned above the supporting lugs;
the buffer assembly comprises a rectangular sliding block which is inserted into the rectangular counter bore, a step through hole which is arranged in the rectangular sliding block in a small-up and big-down mode is sleeved in the rectangular sliding block, a step column body is sleeved in the step through hole, the upper end of the step column body is inserted into and fixed on the bottom surface of the rectangular counter bore, a rubber pad is coated on the outer wall of the lower end of the rectangular sliding block, and the rubber pad is slightly higher than the valve plate.
Through above-mentioned technical scheme, when the one end of suction valve block is close to the valve plate, the support lug contacts with the rubber pad at first, can further reduce noise.
The utility model is further arranged to: the rectangular sliding block is formed with a spring groove with an opening at the upper side, and a pressure spring is clamped between the bottom surface of the spring groove and the bottom surface of the rectangular counter bore.
Through the technical scheme, the pressure spring can be stretched and contracted, the rectangular sliding block can be conveniently reset during stretching, and the buffer effect on the supporting lugs when the suction valve plate hits the rubber pad can be improved during compression.
The beneficial effects of the utility model are as follows:
through arranging the through groove on the air suction valve block and arranging the waist-shaped groove in the area of the valve plate below the air discharge valve block, the contact area between the valve plate and the air suction valve block and between the valve plate and the air discharge valve block can be reduced, the noise generated when the air suction valve block and the air discharge valve block strike the valve plate can be effectively reduced, and the resistance when the air suction valve block and the air discharge valve block are separated from the valve plate can be effectively reduced, so that the energy consumption is reduced;
the buffer components are arranged at the ends of the waist-shaped rubber ring and the air suction valve plate below the air discharge valve plate, so that a buffer effect can be provided for the air discharge valve plate and the air suction valve plate in the process of being close to the valve plate, and noise is further reduced.
Drawings
FIG. 1 is a schematic view of the upper side of the present utility model;
FIG. 2 is a schematic view of the underside of the present utility model;
FIG. 3 is a top view of the present utility model;
FIG. 4 is a cross-sectional view of FIG. 3 taken about A-A;
FIG. 5 is a bottom view of the present utility model;
FIG. 6 is a cross-sectional view of FIG. 5 taken about B-B;
fig. 7 is a cross-sectional view of fig. 5 with respect to C-C.
Reference numerals: 10. a valve plate; 101. an air suction hole; 102. an exhaust hole; 103. a waist-shaped groove; 104. a first sink; 105. a second sink; 106. rectangular counter bore; 107. positioning pin holes;
20. a suction valve plate assembly; 201. a suction valve plate; 2011. a through groove; 2012. a support tab; 202. a positioning pin; 203. an elastic support sheet; 2031. a through hole;
30. an exhaust valve plate assembly; 301. an exhaust valve plate; 302. a limit valve plate; 303. a screw; 304. a nut; 305. waist-shaped rubber rings;
40. a buffer assembly; 401. a rectangular slide block; 4011. a step through hole; 4012. a spring groove; 402. a step column; 403. a rubber pad; 404. a pressure spring;
50. adjusting the core; 501. a stud; 502. an adjusting column; 503. a hexagonal counter bore; 51. a third seal ring; 52. a retainer ring;
60. an adjusting mechanism; 601. lifting the rotating column; 6011. a hexagonal cylinder; 6012. a second hexagonal hole; 6013. an annular groove; 602. a first seal ring; 603. a second seal ring; 604. a first bearing; 605. a first screw; 606. a lifting block; 6061. a U-shaped groove; 607. and (3) oil sealing.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
The present utility model is described below with reference to fig. 1 to 7:
the valve plate assembly of the noise-reducing and energy-saving piston compressor comprises a valve plate 10, wherein a plurality of air suction holes 101 and a plurality of air exhaust holes 102 are formed in the valve plate 10; the valve plate 10 is fixed with a plurality of suction valve plate assemblies 20 corresponding to the suction holes 101 one by one and a plurality of discharge valve plate assemblies 30 corresponding to the discharge holes 102 one by one; the suction valve block assembly 20 comprises a suction valve block 201, one end of the suction valve block 201 is pressed against the lower end face of the corresponding suction hole 101, the other end of the suction valve block 201 is inserted and sleeved on two positioning pins 202, and the positioning pins 202 are inserted and sleeved on the corresponding positioning pin holes 107 on the valve plate 10; a through groove 2011 is formed in the middle of the suction valve plate 201;
the exhaust valve plate assembly 30 comprises a limit valve plate 302 and an exhaust valve plate 301 which are arranged up and down, one end of the exhaust valve plate 301 is pressed against the upper end face of the corresponding exhaust hole 102, and one end of the limit valve plate 302 above the exhaust hole 102 is obliquely tilted; the other end of the exhaust valve plate 301 and the other end of the limit valve plate 302 are fixed on the valve plate 10 through a screw 303 and a nut 304; the valve plate 10 is formed with a plurality of waist-shaped grooves 103, and each waist-shaped groove 103 is positioned between the corresponding exhaust hole 102 and the corresponding screw 303; the waist-shaped groove 103 is sleeved with a waist-shaped rubber ring 305, the lower bottom surface of the exhaust valve plate 301 is pressed against the waist-shaped rubber ring 305, and the waist-shaped rubber ring is slightly higher than the valve plate in a natural state.
Through the through groove arranged on the air suction valve plate, the contact area between the air suction valve plate and the valve plate can be reduced, so that the noise generated when one end of the air suction valve plate repeatedly hits the valve plate is reduced; meanwhile, as the contact area between the air suction valve plate and the valve plate is reduced, the adsorption capacity of the valve plate to the air suction valve plate is also reduced due to the existence of hydraulic oil, so that the idle work of the air suction valve plate for overcoming the adsorption force of the valve plate is reduced, and the energy saving is realized;
through set up waist type rubber circle in the discharge valve piece below, waist type rubber circle can provide an ascending support and buffering to the discharge valve piece through the deformation to reduce the noise that produces when the discharge valve piece hits the valve plate, can reduce the area of contact between discharge valve piece and the valve plate through waist type rubber circle, thereby further reduce noise and valve plate to the adsorption affinity size of discharge valve piece, reduce the resistance size of discharge valve piece and valve plate separation, thereby play energy-conserving effect.
A first sinking groove 104 coaxially arranged with the upper end surface of the exhaust hole 102 is formed on the upper end surface of the exhaust hole;
a second countersink 105 is formed on the lower end surface of the suction hole 101 and is coaxially arranged with the suction hole.
The first sinking groove is arranged at the outer side of the exhaust hole, so that the contact area between the end part of the exhaust valve plate and the end face of the exhaust hole can be reduced, and the contact area between the exhaust valve plate and the valve plate can be further reduced; through setting up the second heavy groove at the suction port outgoing, can reduce the area of contact of suction valve block tip and suction port tip terminal surface to further reduce the noise and further reduce the adsorption affinity of valve plate to suction valve block, exhaust valve plate, make things convenient for the resistance of opening of suction valve block, exhaust valve block, reduce unnecessary idle work.
Two positioning pins 202 inserted on the same suction valve plate 201 are inserted in through holes 2031 at two ends of an elastic support sheet 203, the middle part of the elastic support sheet 203 is arched downwards, and two ends of the elastic support sheet 203 are pressed against the suction valve plate 201 above.
Through the middle arch setting of elastic support thin slice, thereby will open to both ends owing to elastic support thin slice will resume deformation to provide an outside power to two locating pins respectively, thereby can make the locating pin hug closely on one lateral wall of locating pin hole, thereby prevent the locating pin and break away from the valve plate through the frictional force between locating pin and the locating pin hole, thereby further prevent that the suction valve block from coming off from the valve plate, make things convenient for the assembly work of later stage valve plate subassembly and compressor cylinder body.
The end of the suction valve plate 201 far away from the positioning pin 202 is formed with a supporting lug 2012, the supporting lug 2012 is pressed against the buffer assembly 40 at the upper end of the supporting lug 2012, and the buffer assembly 40 is arranged on the valve plate 10.
The buffer component can provide a buffer effect for the supporting lugs, so that noise generated by striking the valve plate when one end of the air suction valve plate approaches the valve plate is reduced.
A plurality of rectangular counter bores 106 with openings at the lower sides, which are in one-to-one correspondence with the air suction holes 101, are formed on the valve plate 10, and the rectangular counter bores 106 are positioned above the supporting lugs 2012;
the buffer assembly 40 comprises a rectangular sliding block 401 which is inserted and sleeved in the rectangular counter bore 106, a step through hole 4011 which is arranged in the rectangular sliding block 401 in a small-up and big-down mode is sleeved in the step through hole 4011, a step column 402 is sleeved in the step through hole 4011, the upper end of the step column 402 is inserted and fixed on the bottom surface of the rectangular counter bore 106, a rubber pad 403 is coated on the outer wall of the lower end of the rectangular sliding block 401, and the rubber pad is slightly higher than the valve plate.
When one end of the air suction valve plate approaches the valve plate, the supporting lugs are contacted with the rubber pad at first, so that noise can be further reduced.
The rectangular slider 401 is formed with a spring groove 4012 with an opening at the upper side, and a compression spring 404 is clamped between the bottom surface of the spring groove 4012 and the bottom surface of the rectangular counter bore 106.
The pressure spring is extensible and contractible, the rectangular sliding block can be reset conveniently when the pressure spring is extended, and the buffer effect on the supporting lugs when the suction valve plate hits the rubber pad can be improved when the pressure spring is compressed.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The valve plate assembly of the noise-reducing and energy-saving piston compressor comprises a valve plate (10), wherein a plurality of air suction holes (101) and a plurality of air exhaust holes (102) are formed in the valve plate (10); the valve plate (10) is fixedly provided with a plurality of air suction valve plate assemblies (20) which are in one-to-one correspondence with a plurality of air suction holes (101) and a plurality of air discharge valve plate assemblies (30) which are in one-to-one correspondence with a plurality of air discharge holes (102); the method is characterized in that: the air suction valve block assembly (20) comprises an air suction valve block (201), one end of the air suction valve block (201) is pressed against the lower end face of the corresponding air suction hole (101), the other end of the air suction valve block (201) is inserted and sleeved on two positioning pins (202), and the positioning pins (202) are inserted and sleeved on corresponding positioning pin holes (107) on the valve plate (10); a through groove (2011) is formed in the middle of the air suction valve plate (201);
the exhaust valve plate assembly (30) comprises a limit valve plate (302) and an exhaust valve plate (301) which are arranged up and down, one end of the exhaust valve plate (301) is pressed against the upper end face of the corresponding exhaust hole (102), and one end of the limit valve plate (302) above the exhaust hole (102) is obliquely tilted; the other end of the exhaust valve plate (301) and the other end of the limit valve plate (302) are fixed on the valve plate (10) through a screw (303) and a nut (304); the valve plate (10) is provided with a plurality of waist-shaped grooves (103), and each waist-shaped groove (103) is positioned between the corresponding exhaust hole (102) and the corresponding screw (303); the waist-shaped groove (103) is sleeved with a waist-shaped rubber ring (305), and the lower bottom surface of the exhaust valve plate (301) is pressed against the waist-shaped rubber ring (305).
2. The noise-reducing and energy-saving piston compressor valve plate assembly of claim 1, wherein: a first sinking groove (104) which is coaxially arranged with the upper end surface of the exhaust hole (102) is formed on the upper end surface of the exhaust hole;
a second sinking groove (105) which is coaxially arranged with the lower end surface of the air suction hole (101) is formed on the lower end surface of the air suction hole.
3. The noise-reducing and energy-saving piston compressor valve plate assembly of claim 1, wherein: two positioning pins (202) inserted on the same suction valve plate (201) are inserted in through holes (2031) at two ends of an elastic support sheet (203), the middle part of the elastic support sheet (203) is arched downwards, and two ends of the elastic support sheet (203) are pressed against the suction valve plate (201) above the elastic support sheet.
4. The noise-reducing and energy-saving piston compressor valve plate assembly of claim 1, wherein: one end of the air suction valve plate (201) far away from the locating pin (202) is provided with a supporting lug (2012), the supporting lug (2012) is pressed against a buffer assembly (40) positioned at the upper end of the supporting lug, and the buffer assembly (40) is arranged on the valve plate (10).
5. The noise and energy reducing piston compressor valve plate assembly of claim 4, wherein: a plurality of rectangular counter bores (106) with openings at the lower sides, which are in one-to-one correspondence with the air suction holes (101), are formed on the valve plate (10), and the rectangular counter bores (106) are positioned above the supporting lugs (2012);
the buffer assembly (40) comprises a rectangular sliding block (401) which is sleeved in the rectangular counter bore (106), a step through hole (4011) which is arranged in the rectangular sliding block (401) in a sleeved mode, a step column body (402) is sleeved in the step through hole (4011), the upper end of the step column body (402) is sleeved with and fixed on the bottom surface of the rectangular counter bore (106), and a rubber pad (403) is coated on the outer wall of the lower end of the rectangular sliding block (401).
6. The noise and energy reducing piston compressor valve plate assembly of claim 5, wherein: the rectangular sliding block (401) is provided with a spring groove (4012) with an opening at the upper side, and a pressure spring (404) is clamped between the bottom surface of the spring groove (4012) and the bottom surface of the rectangular counter bore (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321010576.7U CN220118783U (en) | 2023-04-26 | 2023-04-26 | Energy-saving piston compressor valve plate subassembly of making an uproar falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321010576.7U CN220118783U (en) | 2023-04-26 | 2023-04-26 | Energy-saving piston compressor valve plate subassembly of making an uproar falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118783U true CN220118783U (en) | 2023-12-01 |
Family
ID=88915313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321010576.7U Active CN220118783U (en) | 2023-04-26 | 2023-04-26 | Energy-saving piston compressor valve plate subassembly of making an uproar falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220118783U (en) |
-
2023
- 2023-04-26 CN CN202321010576.7U patent/CN220118783U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60117535D1 (en) | CYLINDER HEAD FOR PISTON FLOW COMPRESSORS | |
| CN220118783U (en) | Energy-saving piston compressor valve plate subassembly of making an uproar falls | |
| CN110469497A (en) | Compressor and refrigeration equipment with it | |
| CN202360357U (en) | Air valve type check valve for piston type compressor | |
| US20120308419A1 (en) | Mechanism to Raise the Efficiency of a Reciprocating Refrigeration Compressor | |
| CN2878723Y (en) | Arch-type flow passage valve plate for full-enclosed refrigeration compressor | |
| CN211144816U (en) | Exhaust valve | |
| CN209100250U (en) | A kind of air inlet and exhaust valve structure | |
| CN107120258B (en) | A kind of inversion type air compressor gas valve | |
| CN1851265A (en) | Valve set structure for reciprocating compressor | |
| CN205895550U (en) | Convex structure valve plate device | |
| CN1036618A (en) | Dividing plate and plate bias voltage | |
| CN206801822U (en) | A kind of inversion type air compressor gas valve | |
| CN211975576U (en) | Flat cylinder | |
| CN211777914U (en) | Air inlet and outlet valve structure | |
| CN217501917U (en) | High-efficient valve plate structure of refrigeration piston machine | |
| CN221423386U (en) | Transmission structure of piston pump | |
| CN209228575U (en) | A kind of long service life and low power consumption air valve of minitype high voltage air compressor machine | |
| CN221664875U (en) | Double-groove piston of oil-free lubrication compressor | |
| CN212079568U (en) | Air suction valve plate for improving air suction efficiency and compressor | |
| CN218177949U (en) | Vacuum negative pressure safety valve | |
| CN220622107U (en) | Durable compressor air valve convenient to maintain | |
| CN2733035Y (en) | Energy-saving mechanism applied in piston compressor | |
| CN212536719U (en) | Valve plate air hole structure of oil-free swing piston type compressor | |
| CN219327796U (en) | Wear-resistant triple offset butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |