CN212656956U - Cylinder cover assembly of refrigerant recovery machine - Google Patents
Cylinder cover assembly of refrigerant recovery machine Download PDFInfo
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- CN212656956U CN212656956U CN202021212855.8U CN202021212855U CN212656956U CN 212656956 U CN212656956 U CN 212656956U CN 202021212855 U CN202021212855 U CN 202021212855U CN 212656956 U CN212656956 U CN 212656956U
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- valve seat
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Abstract
The utility model relates to a refrigerant recovery machine cylinder head subassembly, including the cylinder head. An air inlet valve seat cavity and an air outlet valve seat cavity are concavely formed on the air cylinder cover; the upper end of the air inlet valve seat cavity is sealed with an air inlet cover, and the lower end of the air inlet valve seat cavity is provided with an air inlet hole; an air inlet valve core with the lower end matched with the air inlet is arranged in the air inlet valve seat cavity in a vertically sliding manner; the upper end of the air inlet valve core is sleeved with a limiting ring, an air inlet valve core sleeve and an air inlet spring, and the air inlet spring is pressed between the air inlet valve core sleeve and the air inlet valve seat cavity to enable the air inlet valve core sleeve to be abutted against the limiting ring; the upper end of the exhaust valve seat cavity is sealed with an exhaust cover, and the lower end of the exhaust valve seat cavity is provided with an exhaust hole; an exhaust valve core with the lower end matched with the exhaust hole is arranged in the exhaust valve seat cavity in an up-and-down sliding mode, a spring seat is sleeved on the exhaust valve core, and an exhaust spring is pressed between the spring seat and the exhaust cover. The structure directly manufactures the valve seat cavity in the inner part, saves an externally-installed air valve seat, has fewer component parts, simpler structure and more convenient assembly and maintenance.
Description
Technical Field
The utility model relates to a machine technical field is retrieved to the refrigerant especially relates to a machine cylinder head assembly is retrieved to refrigerant.
Background
At present, most of the cylinder head component structures of refrigerant recycling machines need to be provided with an air inlet valve seat and an air outlet valve seat at the tops, and are provided with an air inlet valve and an air outlet valve respectively, so that more parts are formed. In addition, the assembly process of the air inlet valve seat and the air exhaust valve seat is complex, the valve seats need to be pressed into the cylinder cover by means of repeated operation of various tools, the operation is time-consuming and labor-consuming, the assembly efficiency is low, and the equipment disassembly and assembly maintenance process is also very complex.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome above-mentioned problem, and provide a simple structure, constitute that spare part is few, convenient assembling's refrigerant retrieves quick-witted cylinder head assembly.
The technical scheme of the utility model is that:
a refrigerant recovery machine cylinder head subassembly, including the cylinder head, its characterized in that: an air inlet valve seat cavity and an air outlet valve seat cavity are concavely formed on the air cylinder cover;
wherein, the opening at the upper end of the air inlet valve seat cavity is sealed with an air inlet cover, and the lower end is provided with a communicated air inlet; an air inlet valve core with the lower end matched with the air inlet is arranged in the air inlet valve seat cavity in a vertically sliding mode; the upper end of the air inlet valve core is fixedly sleeved with a limiting ring, and is also sleeved with an air inlet valve core sleeve and an air inlet spring, and the air inlet spring is pressed between the lower end of the air inlet valve core sleeve and the bottom of the air inlet valve seat cavity so that the air inlet valve core sleeve is abutted against the limiting ring;
the upper end of the exhaust valve seat cavity is sealed with an exhaust cover, and the lower end of the exhaust valve seat cavity is provided with a communicated exhaust hole; the exhaust valve is characterized in that an exhaust valve core with the lower end matched with the exhaust hole is arranged in the exhaust valve seat cavity in an up-and-down sliding mode, a spring seat is further sleeved on the exhaust valve core, and an exhaust spring is pressed between the spring seat and the exhaust cover.
Borrow by above-mentioned structure, the utility model discloses save the air valve seat, through at cylinder head integrated into one piece admission valve seat chamber and discharge valve seat chamber and built-in components such as case, the exhaust valve core of admitting air, make component spare part still less, the structure is constituteed simpler, convenient assembling, and the part cost of manufacture is low.
As prior, refrigerant recovery machine cylinder head subassembly in, the inlet port is the round platform form that top-down diameter expands gradually, the lower extreme of case admits air is the radius platform form with it matched with.
As a priority, in the refrigerant recovery machine cylinder head assembly of the present invention, the exhaust hole is in the shape of an inverted circular truncated cone with a gradually reduced diameter from top to bottom, and the lower end of the exhaust valve element is in the shape of a circular truncated cone matched with the exhaust valve element.
As priority, refrigerant recovery machine cylinder head subassembly in, the concave cross sectional dimension who is formed with first step face and first step face of upper end opening part of admission valve seat chamber is greater than admission valve seat chamber cross sectional dimension, be equipped with first sealing washer between first step face and the admission lid.
As prior, refrigerant recovery machine cylinder head subassembly in, the concave cross sectional dimension who is formed with second step face and second step face of upper end opening part in discharge valve seat chamber is greater than discharge valve seat chamber cross sectional dimension, be equipped with the second sealing washer between second step face and the discharge cover. Effectively ensures the sealing effect between the exhaust valve seat cavity and the air inlet cover. The structure effectively ensures good sealing effect between the air inlet valve seat cavity and the air inlet cover and between the exhaust valve seat cavity and the exhaust cover.
As priority, refrigerant recovery machine cylinder head subassembly in, admission valve seat chamber and discharge valve seat chamber one-to-one are a set of, total a plurality of groups, applicable in the multi-cylinder installation use.
As prior, in the refrigerant recovery machine cylinder head assembly of the present invention, the air inlet spring is a conical coil spring, and the air outlet spring is a cylindrical coil spring.
The utility model has the advantages that: the utility model has the characteristics of think about ingenious, simple structure, reliable operation, stable performance, directly make admission valve seat chamber, discharge valve seat chamber on the cylinder head, through will admit air subassembly such as case, the exhaust case and embed in the cylinder head, need not to join in marriage in addition and assemble the air valve seat to reduce cylinder head subassembly spare part, preparation, simple to operate, assembly process significantly reduces, and easy to maintain maintains, can effectively improve assembly efficiency, reduces and makes and cost of maintenance.
Drawings
Fig. 1 is a schematic diagram of the explosion structure of the present invention.
Fig. 2 is a schematic sectional view of the present invention.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings:
referring to fig. 1 and 2, a cylinder head assembly of a refrigerant recovery machine according to the present embodiment includes a cylinder head 11, wherein an intake valve seat cavity 14 and an exhaust valve seat cavity 13 are concavely formed on the cylinder head 11; the intake valve seat cavities 14 and the exhaust valve seat cavities 13 are in one-to-one correspondence, and a plurality of groups are provided.
Wherein, the opening of the upper end of the air inlet valve seat cavity 14 is sealed with an air inlet cover 6, and the lower end is provided with a communicated air inlet 16; the opening at the upper end of the air inlet valve seat cavity 14 is concavely provided with a first step surface, the cross section size of the first step surface is larger than that of the air inlet valve seat cavity 14, and a first sealing ring 7 is arranged between the first step surface and the air inlet cover 6. An air inlet valve core 12 with the lower end matched with an air inlet 16 is arranged in the air inlet valve seat cavity 14 in a vertically sliding manner; the air inlet 16 is in a circular truncated cone shape with a diameter gradually expanding from top to bottom, and the lower end of the air inlet valve core 12 is in an inverted circular truncated cone shape matched with the air inlet valve core. The upper end of the air inlet valve core 12 is fixedly sleeved with a limiting ring 8, and is further sleeved with an air inlet valve core sleeve 9 and an air inlet spring 10, the air inlet spring 10 is pressed between the lower end of the air inlet valve core sleeve 9 and the bottom of the air inlet valve seat cavity 14, so that the air inlet valve core sleeve 9 is pressed against the limiting ring 8, and specifically, the air inlet spring 10 is a conical spiral spring.
The upper end of the exhaust valve seat cavity 13 is sealed with an exhaust cover 1, and the lower end is provided with a communicated exhaust hole 15; the opening at the upper end of the exhaust valve seat cavity 13 is concavely provided with a second step surface, the size of the cross section of the second step surface is larger than that of the cross section of the exhaust valve seat cavity 13, and a second sealing ring 2 is arranged between the second step surface and the exhaust cover 1. An exhaust valve core 5 with the lower end matched with the exhaust hole 15 is arranged in the exhaust valve seat cavity 13 in a vertically sliding mode, the exhaust hole 15 is in a shape of an inverted circular truncated cone with the diameter gradually reduced from top to bottom, and the lower end of the exhaust valve core 5 is in a shape of a circular truncated cone matched with the exhaust hole. The exhaust valve core 5 is further sleeved with a spring seat 4, an exhaust spring 3 is pressed between the spring seat 4 and the exhaust cover 1, and specifically, the exhaust spring 3 is a cylindrical spiral spring.
The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a refrigerant recovery machine cylinder head subassembly, includes the cylinder head, its characterized in that: an air inlet valve seat cavity and an air outlet valve seat cavity are concavely formed on the air cylinder cover;
wherein, the opening at the upper end of the air inlet valve seat cavity is sealed with an air inlet cover, and the lower end is provided with a communicated air inlet; an air inlet valve core with the lower end matched with the air inlet is arranged in the air inlet valve seat cavity in a vertically sliding mode; the upper end of the air inlet valve core is fixedly sleeved with a limiting ring, and is also sleeved with an air inlet valve core sleeve and an air inlet spring, and the air inlet spring is pressed between the lower end of the air inlet valve core sleeve and the bottom of the air inlet valve seat cavity so that the air inlet valve core sleeve is abutted against the limiting ring;
the upper end of the exhaust valve seat cavity is sealed with an exhaust cover, and the lower end of the exhaust valve seat cavity is provided with a communicated exhaust hole; the exhaust valve is characterized in that an exhaust valve core with the lower end matched with the exhaust hole is arranged in the exhaust valve seat cavity in an up-and-down sliding mode, a spring seat is further sleeved on the exhaust valve core, and an exhaust spring is pressed between the spring seat and the exhaust cover.
2. The cylinder head assembly of a refrigerant recovery machine as set forth in claim 1, wherein: the air inlet is in a circular truncated cone shape with the diameter gradually expanding from top to bottom, and the lower end of the air inlet valve core is in an inverted circular truncated cone shape matched with the air inlet valve core.
3. The cylinder head assembly of a refrigerant recovery machine as set forth in claim 1, wherein: the exhaust hole is in a shape of an inverted circular truncated cone with a gradually reduced diameter from top to bottom, and the lower end of the exhaust valve core is in a shape of a circular truncated cone matched with the exhaust valve core.
4. The cylinder head assembly of a refrigerant recovery machine as set forth in claim 1, wherein: the air inlet valve seat cavity is characterized in that a first step surface is formed at an opening at the upper end of the air inlet valve seat cavity in a concave mode, the size of the cross section of the first step surface is larger than that of the cross section of the air inlet valve seat cavity, and a first sealing ring is arranged between the first step surface and the air inlet cover.
5. The cylinder head assembly of a refrigerant recovery machine as set forth in claim 1, wherein: the exhaust valve seat cavity is characterized in that a second step surface is formed at an opening at the upper end of the exhaust valve seat cavity in a concave mode, the size of the cross section of the second step surface is larger than that of the cross section of the exhaust valve seat cavity, and a second sealing ring is arranged between the second step surface and the exhaust cover.
6. The cylinder head assembly of a refrigerant recovery machine as set forth in claim 1, wherein: the air inlet valve seat cavity and the exhaust valve seat cavity are in one-to-one correspondence to form a group, and the groups are all multiple.
7. The cylinder head assembly of a refrigerant recovery machine as set forth in claim 1, wherein: the air inlet spring is a conical spiral spring, and the air outlet spring is a cylindrical spiral spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021212855.8U CN212656956U (en) | 2020-06-28 | 2020-06-28 | Cylinder cover assembly of refrigerant recovery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021212855.8U CN212656956U (en) | 2020-06-28 | 2020-06-28 | Cylinder cover assembly of refrigerant recovery machine |
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| Publication Number | Publication Date |
|---|---|
| CN212656956U true CN212656956U (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021212855.8U Active CN212656956U (en) | 2020-06-28 | 2020-06-28 | Cylinder cover assembly of refrigerant recovery machine |
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| CN (1) | CN212656956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335914A (en) * | 2023-04-03 | 2023-06-27 | 徐州市三禾自动控制设备有限公司 | Compressor suitable for freezer refrigeration |
-
2020
- 2020-06-28 CN CN202021212855.8U patent/CN212656956U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335914A (en) * | 2023-04-03 | 2023-06-27 | 徐州市三禾自动控制设备有限公司 | Compressor suitable for freezer refrigeration |
| CN116335914B (en) * | 2023-04-03 | 2023-11-17 | 徐州市三禾自动控制设备有限公司 | Compressor suitable for freezer refrigeration |
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