CN211692756U - Sealing structure for suction valve plate of refrigeration compressor - Google Patents
Sealing structure for suction valve plate of refrigeration compressor Download PDFInfo
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- CN211692756U CN211692756U CN201922320210.XU CN201922320210U CN211692756U CN 211692756 U CN211692756 U CN 211692756U CN 201922320210 U CN201922320210 U CN 201922320210U CN 211692756 U CN211692756 U CN 211692756U
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- suction valve
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- air suction
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Abstract
The utility model discloses a seal structure for compressor suction valve block, including suction valve block and seal gasket, be equipped with on the seal gasket with the fixed inner chamber of the outline adaptation of suction valve block, the suction valve block sets up at fixed inner chamber, and suction valve block and fixed inner chamber interference fit. The utility model provides a seal structure for compressor suction valve block both can reduce seal gasket's the location degree of difficulty, can eliminate the gas leakage in the circumference adaptation clearance between suction valve block and seal gasket again, strengthens sealed effect.
Description
Technical Field
The utility model belongs to the technical field of the refrigeration compressor and specifically relates to a seal structure for refrigeration compressor suction valve piece is related to.
Background
The reciprocating refrigerator compressor suction and exhaust system is generally composed of a cylinder cover, a suction muffler, a cylinder cover gasket, a valve plate, a suction valve plate, a valve plate gasket and a crankcase, wherein the suction valve plate and the valve plate are all metal pieces, and after pre-compression rigid contact, the tightness between the suction valve plate and the valve plate cannot be completely guaranteed. In order to improve the sealing performance between the suction valve plate and the valve plate, a sealing gasket is adopted as a sealing element in the prior art, but the positioning precision requirement on the sealing gasket in the prior art is high, and gas still leaks in a circumferential adaptive gap to influence the performance of the compressor. Therefore, a sealing structure for an air suction valve plate of a refrigeration compressor needs to be researched, so that the positioning difficulty of the sealing gasket can be reduced, the gas leakage in a circumferential adaptive gap between the air suction valve plate and the sealing gasket can be eliminated, and the sealing effect is enhanced.
Chinese patent application publication No. CN201428584Y, published 24/3/2010 entitled "sealing suction valve plate structure for use in refrigeration compressor", discloses a sealing suction valve plate structure for refrigeration compressor, which comprises a suction valve plate and a valve plate sealing gasket, wherein the valve plate sealing gasket is made of tough and elastic fiber material, the suction valve plate is disposed at the central part of the valve plate sealing gasket, and the suction valve plate is provided with a positioning edge, and the valve plate sealing gasket is also provided with a positioning edge. However, in the patent, the requirement on the positioning accuracy of the sealing gasket is high, and gas still leaks into the circumferential adapting gap, so that the performance of the compressor is affected.
Disclosure of Invention
The utility model discloses an overcome among the prior art poor not enough of leakproofness between suction valve block and the seal gasket, provide a seal structure for refrigeration compressor suction valve block, both can reduce seal gasket's the location degree of difficulty, can eliminate the gas leakage in the circumference adaptation clearance between suction valve block and seal gasket again, strengthen sealed effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sealing structure for an air suction valve plate of a refrigeration compressor comprises the air suction valve plate and a sealing gasket, wherein a fixed inner cavity matched with the outer contour of the air suction valve plate is formed in the sealing gasket, the air suction valve plate is arranged in the fixed inner cavity, and the air suction valve plate is in interference fit with the fixed inner cavity.
Among the above-mentioned technical scheme, the suction valve block and fixed inner chamber interference fit can be in order to eliminate the gas leakage in the circumference adaptation clearance between suction valve block and seal gasket, reinforcing sealed effect.
Preferably, the air suction valve further comprises a valve plate, and the air suction valve plate is fixed with the valve plate. The air suction valve plate and the valve plate can be fixed by glue or laser welding and the like, after the air suction valve plate and the valve plate are fixed, the sealing gasket and the valve plate are positioned and fixed, and at the moment, the air suction valve plate is aligned with the fixed inner cavity.
Preferably, the air suction valve further comprises a cavity positioning block, a positioning cavity is arranged on the cavity positioning block, and the positioning cavity is matched with the air suction valve plate. The cavity positioning block can be used for installing and positioning the air suction valve plate, the air suction valve plate can be placed in the positioning cavity after the cavity positioning block and the valve plate are positioned, the cavity positioning block is taken away after accurate positioning is carried out, and then the sealing gasket and the valve plate are fixed.
Preferably, the edge of the cavity positioning block is provided with a plurality of positioning holes. The positioning hole can accurately position the cavity positioning block and the valve plate, so that the positioning precision between the suction valve plate and the sealing gasket is ensured.
Preferably, the cavity positioning block is a metal piece. The metal is more difficult to be deformed relative to the fiber material, and the positioning is more accurate.
Preferably, the edge of the sealing gasket is provided with a plurality of screw holes. The screw hole can accurately position and fix the sealing gasket and the valve plate, so that the positioning precision between the air suction valve plate and the sealing gasket is ensured.
Preferably, the material of the sealing gasket is a fiber material. The fiber material is tough and elastic, and can well ensure air tightness.
The utility model has the advantages that: (1) the air tightness between the air suction valve plate and the sealing gasket can be enhanced; (2) the positioning difficulty of the sealing gasket is low, and the positioning is accurate.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an exploded view of the present invention;
fig. 3 is a schematic structural diagram of the positioning block of the middle mold cavity of the present invention.
In the figure: the air suction valve plate comprises an air suction valve plate 1, a sealing gasket 2, a fixing inner cavity 2.1, a screw hole 2.2, a valve plate 3, a cavity positioning block 4, a positioning cavity 4.1 and a positioning hole 4.2.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1, 2 and 3, a sealing structure for a suction valve plate of a refrigeration compressor comprises a suction valve plate 1, a sealing gasket 2, a valve plate 3 and a cavity positioning block 4; the material of the sealing gasket 2 is fiber material, as shown in fig. 2, the air suction valve plate 1 is fixed with the valve plate 3, the middle part of the sealing gasket 2 is provided with a fixed inner cavity 2.1 matched with the outer contour of the air suction valve plate 1, the air suction valve plate 1 is arranged in the fixed inner cavity 2.1, and the air suction valve plate 1 is in interference fit with the fixed inner cavity 2.1; the edge of the sealing gasket 2 is provided with a plurality of screw holes 2.2, and the screws penetrate through the screw holes 2.2 to fix the sealing gasket 2 on the valve plate 3. As shown in fig. 3, the cavity positioning block 4 is a metal part; a positioning cavity 4.1 is arranged on the cavity positioning block 4, and the positioning cavity 4.1 is matched with the air suction valve plate 1; the edge of the cavity positioning block 4 is provided with a plurality of positioning holes 4.2 used for positioning the valve plate 3.
In the technical scheme, the air suction valve plate 1 is in interference fit with the fixed inner cavity 2.1, so that gas leakage in the adaptive gap between the air suction valve plate 1 and the sealing gasket 2 can be eliminated, and the sealing effect is enhanced. The cavity positioning block 4 can be used for installing and positioning the air suction valve block 1, the air suction valve block 1 can be placed in the positioning cavity 4.1 after the cavity positioning block 4 and the valve plate 3 are positioned, the cavity positioning block 4 is taken away after accurate positioning is carried out, and then the sealing gasket 2 and the valve plate 3 are fixed, so that the positioning difficulty of the sealing gasket 2 is reduced, and the positioning is accurate.
The utility model has the advantages that: the air tightness between the air suction valve plate and the sealing gasket can be enhanced; the positioning difficulty of the sealing gasket is low, and the positioning is accurate.
Claims (7)
1. A sealing structure for an air suction valve plate of a refrigeration compressor comprises the air suction valve plate and a sealing gasket and is characterized in that a fixed inner cavity matched with the outer contour of the air suction valve plate is arranged on the sealing gasket, the air suction valve plate is arranged in the fixed inner cavity, and the air suction valve plate is in interference fit with the fixed inner cavity.
2. A sealing structure for a suction valve plate of a refrigerating compressor according to claim 1, further comprising a valve plate, wherein said suction valve plate is fixed to said valve plate.
3. A sealing structure for a suction valve plate of a refrigeration compressor according to claim 1, further comprising a cavity positioning block, wherein the cavity positioning block is provided with a positioning cavity, and the positioning cavity is adapted to the suction valve plate.
4. A sealing structure for suction valve plate of refrigerating compressor as claimed in claim 3, wherein said cavity positioning block has a plurality of positioning holes on its edge.
5. A sealing structure for a suction valve plate of a refrigerating compressor as claimed in claim 3, wherein the cavity positioning block is a metal member.
6. A sealing structure for suction valve plate of refrigerating compressor as claimed in claim 1 or 2 or 3 or 4 or 5, wherein said sealing gasket edge is provided with a plurality of screw holes.
7. A sealing structure for suction valve plate of refrigerating compressor as claimed in claim 1 or 2 or 3 or 4 or 5, wherein said sealing gasket is made of fiber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922320210.XU CN211692756U (en) | 2019-12-20 | 2019-12-20 | Sealing structure for suction valve plate of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922320210.XU CN211692756U (en) | 2019-12-20 | 2019-12-20 | Sealing structure for suction valve plate of refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211692756U true CN211692756U (en) | 2020-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922320210.XU Active CN211692756U (en) | 2019-12-20 | 2019-12-20 | Sealing structure for suction valve plate of refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211692756U (en) |
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2019
- 2019-12-20 CN CN201922320210.XU patent/CN211692756U/en active Active
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