CN202418652U - Refrigeration guide sealing valve plug for automobile air conditioning - Google Patents
Refrigeration guide sealing valve plug for automobile air conditioning Download PDFInfo
- Publication number
- CN202418652U CN202418652U CN2011204844383U CN201120484438U CN202418652U CN 202418652 U CN202418652 U CN 202418652U CN 2011204844383 U CN2011204844383 U CN 2011204844383U CN 201120484438 U CN201120484438 U CN 201120484438U CN 202418652 U CN202418652 U CN 202418652U
- Authority
- CN
- China
- Prior art keywords
- seat
- valve
- spool
- valve plug
- seal
- 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
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Abstract
The utility model discloses a refrigeration guide sealing valve plug for an automobile air conditioning. The valve plug comprises a valve plug rod, a returning spring, a valve sleeve seat, a pipe wall sealing ring and a valve plug sealing seat; the upper end of a connection shaft of the valve plug sealing seat is provided with a valve plug guide excircle; the outer diameter of the valve plug guide excircle is in sliding guide fit with an air inlet cavity of the valve sleeve seat; an air inlet groove is formed on the valve plug guide excricle in the axial direction; and a sealing ring is arranged between the upper end face of an axial step and the sealing surface of the valve sleeve seat. The upper end of the connection shaft is provided with the valve plug guide excircle to guarantee that the valve plug rod is coaxial with the valve sleeve seat, and the sealing ring is arranged between the upper end face of the axial step and the sealing surface of the valve sleeve seat to seal between a valve plug seat and the valve sleeve seat.
Description
Technical field
The utility model relates to refrigerated air-conditioning system, relates in particular to automobile refrigerating air-conditioning gas circuit spool.
Background technique
In the automobile refrigerating air-conditioning, all gas path control valve must be arranged, otherwise just can't just can't proper functioning to car air conditioner.Existing automobile refrigerating air-conditioning spool is for being mostly shape metallic leak-proof structure, and is as shown in Figure 1, and it comprises valve core rod 1, Returnning spring 2, valve cover seat 3, tube wall seal ring 4 and seal spool seat 5; On the cylindrical of valve cover seat 3, be provided with outside thread, guiding cylindrical and seal groove; The lower end surface of valve cover seat 3 is a sealing surface, is provided with pilot hole and the air-inlet cavity that matches with valve core rod 1 at the center of valve cover seat 3, and outside thread matches with the internal thread of control valve seat 7; Upper end at valve core rod 1 is provided with limited step; Hypomere is provided with the section of being threaded, and valve core rod 1 is sleeved in the pilot hole of Returnning spring 2 and valve cover seat 3, on seal spool seat 5, is provided with axial step and coupling shaft; Axial step and coupling shaft coaxial line; Be provided with the core bar screw at the center of coupling shaft, valve core rod 1 is rotated with in the core bar screw of seal spool seat 5 through the outside thread of its lower end, between the lower end surface of the upper-end surface of the axial step of seal spool seat 5 and valve cover seat 3, forms sealing configuration.
The sealability of the automobile air-conditioning refrigeration spool of this structure not only depends on the machining accuracy of part; And depend on assembly precision; The sealing reliability of spool is bad with stability; If assembly precision does not reach requirement, valve core rod 1 and the axis of the combination of seal spool seat 5 and the lower end surface out of plumb of valve cover seat 3 will leak gas.
The model utility content
In order to overcome the above-mentioned deficiency that existing technology exists, the purpose of the utility model provides a kind of automobile air-conditioning refrigeration pilot seal spool.
The technological scheme that the utility model is taked is:
A kind of automobile air-conditioning refrigeration pilot seal spool comprises valve core rod, Returnning spring, valve cover seat, tube wall seal ring and seal spool seat, on the cylindrical of valve cover seat, is provided with outside thread, valve guiding cylindrical and seal groove; Lower end at the valve cover seat is provided with sealing surface; Be provided with pilot hole and the air-inlet cavity that matches with valve core rod at the center of valve cover seat, outside thread matches with the internal thread of control valve seat, is provided with limited step in the upper end of valve core rod; Hypomere is provided with the section of being threaded; Valve core rod is sleeved in the pilot hole of Returnning spring endoporus and valve cover seat, on the seal spool seat, is provided with axial step and coupling shaft, axial step and coupling shaft coaxial line; Be provided with the core bar screw at the center of coupling shaft; Valve core rod is rotated with in the core bar screw of seal spool seat through the outside thread of its lower end, it is characterized in that: be provided with spool guiding cylindrical in the upper end of the coupling shaft of seal spool seat, the external diameter of spool guiding cylindrical cooperates with the air-inlet cavity slide-and-guide of valve cover seat; Be axially arranged with air inlet duct in spool guiding cylindrical upper edge, between the sealing surface of the upper-end surface of axial step and valve cover seat, be provided with seal ring.
Owing to be provided with spool guiding cylindrical in the upper end of the coupling shaft of seal spool seat, and the external diameter of spool guiding cylindrical cooperates with the air-inlet cavity slide-and-guide of valve cover seat, between the sealing surface of upper-end surface and valve cover seat, is provided with seal ring.Be provided with spool guiding cylindrical in the upper end of coupling shaft and can guarantee that valve core rod is coaxial with the valve cover seat, between the sealing surface of the upper-end surface of axial step and valve cover seat, be provided with seal ring and can guarantee to seal between seal spool seat and the valve cover seat.
Description of drawings
Fig. 1 is the prior art constructions schematic representation;
Fig. 2 is the structural representation of the utility model;
Fig. 3 is the structural representation of valve seat;
Fig. 4 is the structural representation of valve core case;
Fig. 5 is the plan view of Fig. 4;
Among the figure: the 1-valve core rod; The 2-Returnning spring; 3-valve cover seat; 4-tube wall seal ring; 5-seal spool seat; The 6-seal ring; The 7-control valve seat; The 31-outside thread; 32-valve guiding cylindrical; The 33-seal groove; The 34-sealing surface; The 35-pilot hole; The 36-air-inlet cavity; The 51-axial step; The 52-coupling shaft; 53-core bar screw; 54-spool guiding cylindrical; The 55-air inlet duct; The 56-upper-end surface.
Embodiment
Illustrate the embodiment of the utility model below:
A kind of automobile air-conditioning refrigeration pilot seal spool; Like Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, it is made up of valve core rod 1, Returnning spring 2, valve cover seat 3, tube wall seal ring 4, seal spool seat 5 and seal ring 6, on the cylindrical of valve cover seat 3, is provided with outside thread 31, valve guiding cylindrical 32 and seal groove 33; Be provided with sealing surface 34 in the lower end of valve cover seat 3; Be provided with the pilot hole 35 and air-inlet cavity 36 that matches with valve core rod 1 at the center of valve cover seat 3, outside thread 31 matches with the internal thread of control valve seat 7, is provided with limited step in the upper end of valve core rod 1; Hypomere is provided with the section of being threaded; Valve core rod 1 is sleeved in the pilot hole 35 of Returnning spring 2 endoporus and valve cover seat 3, on seal spool seat 5, is provided with axial step 51 and coupling shaft 52, axial step 51 and coupling shaft 52 coaxial lines; Be provided with core bar screw 53 at the center of coupling shaft 52; Valve core rod 1 is rotated with in the core bar screw 53 of seal spool seat 5 through the outside thread of its lower end, it is characterized in that: be provided with spool guiding cylindrical 54 in the upper end of the coupling shaft 52 of seal spool seat 5, the external diameter of spool guiding cylindrical 54 cooperates with air-inlet cavity 36 slide-and-guides of valve cover seat 3; Be axially arranged with air inlet duct 55 in spool guiding cylindrical 54 upper edges, between the sealing surface 34 of the upper-end surface 56 of axial step 51 and valve cover seat 3, be provided with seal ring 6.
Claims (1)
1. automobile air-conditioning refrigeration pilot seal spool; Comprise valve core rod (1), Returnning spring (2), valve cover seat (3), tube wall seal ring (4) and seal spool seat (5); On the cylindrical of valve cover seat (3), be provided with outside thread (31), valve guiding cylindrical (32) and seal groove (33); Be provided with sealing surface (34) in the lower end of valve cover seat (3); Be provided with pilot hole (35) and the air-inlet cavity (36) that matches with valve core rod (1) at the center of valve cover seat (3), outside thread (31) matches with the internal thread of control valve seat (7), is provided with limited step in the upper end of valve core rod (1); Hypomere is provided with the section of being threaded; Valve core rod (1) is sleeved in the pilot hole (35) of Returnning spring (2) endoporus and valve cover seat (3), on seal spool seat (5), is provided with axial step (51) and coupling shaft (52), axial step (51) and coupling shaft (52) coaxial line; Be provided with core bar screw (53) at the center of coupling shaft (52); Valve core rod (1) is rotated with in the core bar screw (53) of seal spool seat (5) through the outside thread of its lower end, it is characterized in that: be provided with spool guiding cylindrical (54) in the upper end of the coupling shaft (52) of seal spool seat (5), the external diameter of spool guiding cylindrical (54) cooperates with air-inlet cavity (36) slide-and-guide of valve cover seat (3); Be axially arranged with air inlet duct (55) in spool guiding cylindrical (54) upper edge, between the sealing surface (34) of the upper-end surface (56) of axial step (51) and valve cover seat (3), be provided with seal ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204844383U CN202418652U (en) | 2011-11-29 | 2011-11-29 | Refrigeration guide sealing valve plug for automobile air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204844383U CN202418652U (en) | 2011-11-29 | 2011-11-29 | Refrigeration guide sealing valve plug for automobile air conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418652U true CN202418652U (en) | 2012-09-05 |
Family
ID=46743422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204844383U Expired - Fee Related CN202418652U (en) | 2011-11-29 | 2011-11-29 | Refrigeration guide sealing valve plug for automobile air conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418652U (en) |
-
2011
- 2011-11-29 CN CN2011204844383U patent/CN202418652U/en not_active Expired - Fee Related
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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: 20120905 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |