CN215595832U - Exhaust valve plate structure for reducing clearance volume - Google Patents
Exhaust valve plate structure for reducing clearance volume Download PDFInfo
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- CN215595832U CN215595832U CN202121763176.4U CN202121763176U CN215595832U CN 215595832 U CN215595832 U CN 215595832U CN 202121763176 U CN202121763176 U CN 202121763176U CN 215595832 U CN215595832 U CN 215595832U
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- exhaust hole
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Abstract
The utility model discloses an exhaust valve plate structure capable of reducing clearance volume, which comprises an exhaust valve plate and a valve plate, wherein the exhaust valve plate comprises a fixed part, a bent part and a sealing part, the fixed part is fixedly connected with the valve plate, an exhaust hole is formed in the valve plate, the sealing part covers the exhaust hole, the sealing part protrudes towards the direction close to the exhaust hole to form a protruding part, the protruding part is positioned in the exhaust hole, and the shape of the protruding part is matched with that of the exhaust hole; according to the utility model, the convex part corresponding to the exhaust hole is arranged on the exhaust valve plate, so that when the exhaust valve plate blocks the exhaust hole, most of the space in the exhaust hole can be occupied by the convex part, a boss arranged on the piston can be replaced, the clearance volume of the compressor is reduced, and the refrigerating capacity of the compressor is effectively improved.
Description
Technical Field
The utility model belongs to the technical field of compressors, and particularly relates to an exhaust valve plate structure for reducing clearance volume.
Background
Reducing the clearance volume of compressor is the conventional means of raising the refrigerating output, and the engineer uses the boss piston to reduce the clearance volume of exhaust hole usually, but because the piston is formed for powder metallurgy suppression, intensity is not enough after little boss press forming, discovers in the use that the boss has the powder to peel off, and serious person, boss directly drop, cause the compressor card to die.
Chinese utility model patent with publication number CN210714999U discloses an exhaust valve piece for totally closed compressor, including the valve block body, be equipped with elastic clamping portion in the one end of valve block body, the other end is equipped with the valve tongue, elastic deformation takes place when elastic clamping portion installs the valve plate draw-in groove, makes the exhaust valve piece fix in the draw-in groove of valve plate. According to the utility model, the exhaust valve plate is in transition fit with the valve plate clamping groove, so that the exhaust valve plate can be clamped and fixed at the valve plate clamping groove, and the problems of reduced reliability of the exhaust valve plate and poor performance noise consistency of the compressor due to misalignment of the valve tongue of the exhaust valve plate and the center of the exhaust hole caused by position offset of the exhaust valve plate during the operation of the compressor are solved.
Chinese utility model patent publication No. CN202176488U discloses a refrigerant compressor exhaust with circular bead location discharge valve piece uses biconcave valve plate, has an air suction hole and a discharge hole, and a recess is extruded to the position of this valve plate's discharge surface installation discharge valve piece, the thickness and the shape of recess are the same with the thickness and the shape of discharge valve piece, the discharge hole is located the top of recess, a circular bead has respectively in recess bottom both sides. When the exhaust valve plate is assembled, an operator only needs to clamp the tail part of the exhaust valve plate in the two shoulders at the bottom end of the groove, so that the exhaust valve plate can be fixed. The utility model has the advantages that: the exhaust valve plate is quite convenient to assemble by using the structure, the production efficiency is greatly improved, meanwhile, a limiter of the exhaust valve is omitted, and the production cost is also reduced.
Chinese utility model patent publication No. CN202789439U discloses an exhaust valve plate of a reciprocating piston compressor, which comprises a valve plate, an exhaust valve plate, a stopper and a screw, wherein the exhaust valve plate is arranged above the valve plate, the stopper is arranged above the exhaust valve plate, and mounting holes for the screw to pass through are correspondingly arranged on the stopper, the exhaust valve plate and the valve plate; the shape of the limiting block corresponds to that of the exhaust valve block, one end of the exhaust valve block is provided with a U-shaped clamping groove, a protruding block is arranged at the end part of the limiting block, which corresponds to the U-shaped clamping groove, the U-shaped clamping groove is clamped on the protruding block, the protruding block bends downwards, and the end part of the protruding block is clamped in the square hole of the valve plate. The exhaust valve plate of the reciprocating piston compressor can be assembled and used through screws, is easy to mount and very reliable to use, and due to the adoption of a split structure, the shape and the size of the exhaust valve plate are not consistent with those of the valve plate, so that the material consumption of the exhaust valve plate is effectively reduced, and the manufacturing cost is saved.
The three kinds of exhaust valve plates do not play a role in reducing the clearance volume of the compressor, and if the exhaust valve plates are matched with a boss piston for use, boss powder is still peeled off, even the boss falls off, and the problem that the compressor is blocked is caused.
Disclosure of Invention
The utility model aims to provide a vent valve plate structure for reducing the clearance volume, which solves the problems that the existing vent valve plate does not play a role in reducing the clearance volume of a compressor, and if the existing vent valve plate is matched with a boss piston for use, boss powder is peeled off, even a boss falls off, and the compressor is blocked.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a reduce clearance volume discharge valve piece structure, includes discharge valve piece and valve plate, the discharge valve piece includes fixed part, flexion and sealing, the fixed part with valve plate fixed connection, the exhaust hole has been seted up on the valve plate, the sealing lid is established on the exhaust hole, the sealing is to being close to the direction protrusion in exhaust hole forms the bulge, the bulge is located in the exhaust hole, just the shape of bulge with the shape in exhaust hole matches.
According to the utility model, the convex part corresponding to the exhaust hole is arranged on the exhaust valve plate, so that when the exhaust valve plate blocks the exhaust hole, most of the space in the exhaust hole can be occupied by the convex part, a boss arranged on the piston can be replaced, the clearance volume of the compressor is reduced, and the refrigerating capacity of the compressor is effectively improved.
Further, the exhaust hole is circular.
Further, the bulge is in an inverted circular truncated cone shape, a gap is reserved between the bulge side wall and the exhaust hole side wall, the radius of the top of the bulge is R1, the radius of the bottom of the bulge is R2, the height of the bulge is H, the distance from the joint of the fixing part and the valve plate to the bulge is L,
through restricting the shape and the size of the bulge, the bulge can smoothly enter and exit the exhaust hole while occupying a larger space in the exhaust hole, the more the bulge occupies the space in the exhaust hole, the smaller the clearance volume of the compressor is, and the more the refrigerating capacity of the compressor is.
Furthermore, a plurality of vent grooves are formed in the valve plate and located at the corresponding position of the bent portion, viscous force between the bent portion and the valve plate is reduced, and the exhaust valve plate can be opened quickly.
Furthermore, the valve plate is provided with a suction hole for sucking air.
Furthermore, one end of the air suction hole close to the exhaust valve plate is provided with an air suction flow guide groove, so that air suction efficiency is improved.
Furthermore, the periphery of one end, far away from the exhaust valve plate, of the air suction hole is provided with a sealing line, so that the sealing performance of the air suction hole is improved.
Further, the exhaust valve plate is mounted on the valve plate through a rivet.
Further, all seted up the mounting hole on the valve plate four corners for install the valve plate.
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the utility model, the convex part corresponding to the exhaust hole is arranged on the exhaust valve plate, so that when the exhaust valve plate blocks the exhaust hole, most of the space in the exhaust hole can be occupied by the convex part, a boss arranged on the piston can be replaced, the clearance volume of the compressor is reduced, and the refrigerating capacity of the compressor is effectively improved.
(2) Through restricting the shape and the size of the bulge, the bulge can smoothly enter and exit the exhaust hole while occupying a larger space in the exhaust hole, the more the bulge occupies the space in the exhaust hole, the smaller the clearance volume of the compressor is, and the more the refrigerating capacity of the compressor is.
Drawings
FIG. 1 is a schematic front view of a structure of a clearance volume reducing vent valve plate according to the present invention;
FIG. 2 is a schematic view of a back side structure of an air bleed valve plate for reducing clearance volume according to the present invention;
FIG. 3 is a schematic side view of the exhaust valve plate according to the present invention;
in the figure: 1. an exhaust valve plate; 2. a valve plate; 3. a fixed part; 4. a bending section; 5. a sealing part; 6. an exhaust hole; 7. a projection; 8. a vent channel; 9. a suction hole; 10. a suction flow guide groove; 11. a seal line; 12. riveting; 13. and (7) installing holes.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, this embodiment provides a reduce clearance volume discharge valve piece structure, including discharge valve piece 1 and valve plate 2, discharge valve piece 1 includes fixed part 3, flexion 4 and sealing portion 5, fixed part 3 with valve plate 2 fixed connection, exhaust hole 6 has been seted up on the valve plate 2, sealing portion 5 covers and establishes on exhaust hole 6, sealing portion 5 is to being close to the direction protrusion of exhaust hole 6 forms bulge 7, bulge 7 stamping forming, bulge 7 is located in exhaust hole 6, just the shape of bulge 7 with the shape of exhaust hole 6 matches.
This embodiment through set up on discharge valve piece 1 with the bulge 7 that exhaust hole 6 corresponds, when discharge valve piece 1 stops up exhaust hole 6, bulge 7 can also occupy most space in the exhaust hole 6, can replace the boss that sets up on the piston, plays the effect that reduces compressor clearance volume, effectively improves the refrigerating capacity of compressor.
Further, the exhaust hole 6 is circular.
Further, the convex part 7 is in an inverted circular truncated cone shape, a gap is reserved between the side wall of the convex part 7 and the side wall of the exhaust hole 6, the radius of the top of the convex part 7 is R1, the radius of the bottom of the convex part 7 is R2, the height of the convex part 7 is H, the distance from the joint of the fixing part 3 and the valve plate 2 to the convex part 7 is L,
by limiting the shape and size of the protruding part 7, the protruding part 7 can smoothly enter and exit the exhaust hole 6 while occupying a large space in the exhaust hole 6, and the more the protruding part 7 occupies the space in the exhaust hole 6, the smaller the clearance volume of the compressor is, and the more the refrigerating capacity of the compressor is.
Further, a plurality of vent grooves 8 are formed in the valve plate 2, the vent grooves 8 are located at the positions, corresponding to the bent portions 4, of the valve plate 2, viscous force between the bent portions 4 and the valve plate 2 is reduced, and the exhaust valve plate 1 can be rapidly opened.
Further, the valve plate 2 is provided with a suction hole 9 for sucking air.
Furthermore, one end of the air suction hole 9 close to the exhaust valve plate 1 is provided with an air suction flow guide groove 10, so that air suction efficiency is improved.
Furthermore, a sealing line 11 is arranged on the periphery of one end, far away from the exhaust valve plate 1, of the air suction hole 9, so that the sealing performance of the air suction hole 9 is improved.
Further, exhaust valve piece 1 passes through rivet 12 to be installed on valve plate 2, and this embodiment is fixed exhaust valve piece 1 through two rivets 12, prevents that exhaust valve piece 1 from rotating.
Further, mounting holes 13 are formed in four corners of the valve plate 2 and used for mounting the valve plate 2.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a reduce clearance volume discharge valve piece structure, its characterized in that, includes discharge valve piece and valve plate, the discharge valve piece includes fixed part, flexion and sealing, the fixed part with valve plate fixed connection, the exhaust hole has been seted up on the valve plate, the sealing lid is established on the exhaust hole, the sealing is to being close to the direction protrusion in exhaust hole forms the bulge, the bulge is located in the exhaust hole, just the shape of bulge with the shape in exhaust hole matches.
2. The reduced clearance volume vent valve panel structure of claim 1, wherein the vent hole is circular.
3. The exhaust valve plate structure for reducing clearance volume of claim 2, wherein the protrusion is in the shape of an inverted frustum, a gap is left between the sidewall of the protrusion and the sidewall of the exhaust hole, the top radius of the protrusion is R1, the bottom radius of the protrusion is R2, the height of the protrusion is H, the distance from the joint of the fixing portion and the valve plate to the protrusion is L,
4. the exhaust valve plate structure for reducing clearance volume of claim 1, wherein the valve plate is provided with a plurality of vent grooves, and the vent grooves are located at the corresponding positions of the valve plate and the bending portion.
5. The exhaust valve plate structure for reducing clearance volume of claim 1, wherein the valve plate is provided with a suction hole.
6. The vent valve plate structure of claim 5, wherein the end of the suction hole near the vent valve plate is provided with a suction flow guide groove.
7. The vent panel structure for reducing clearance volume of claim 5, wherein a sealing line is disposed at the periphery of an end of the suction hole away from the vent panel.
8. The reduced clearance volume vent panel structure of claim 1, wherein the vent panel is attached to the valve plate by rivets.
9. The vent valve plate structure for reducing clearance volume of claim 1, wherein the valve plate has mounting holes at four corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121763176.4U CN215595832U (en) | 2021-07-30 | 2021-07-30 | Exhaust valve plate structure for reducing clearance volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121763176.4U CN215595832U (en) | 2021-07-30 | 2021-07-30 | Exhaust valve plate structure for reducing clearance volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215595832U true CN215595832U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121763176.4U Active CN215595832U (en) | 2021-07-30 | 2021-07-30 | Exhaust valve plate structure for reducing clearance volume |
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| Country | Link |
|---|---|
| CN (1) | CN215595832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306676A (en) * | 2022-07-26 | 2022-11-08 | 黄石东贝压缩机有限公司 | Telescopic boss piston and working method thereof |
-
2021
- 2021-07-30 CN CN202121763176.4U patent/CN215595832U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306676A (en) * | 2022-07-26 | 2022-11-08 | 黄石东贝压缩机有限公司 | Telescopic boss piston and working method thereof |
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