CN102494148A - Refrigerating and guiding seal valve core of automobile air conditioner - Google Patents
Refrigerating and guiding seal valve core of automobile air conditioner Download PDFInfo
- Publication number
- CN102494148A CN102494148A CN2011103865635A CN201110386563A CN102494148A CN 102494148 A CN102494148 A CN 102494148A CN 2011103865635 A CN2011103865635 A CN 2011103865635A CN 201110386563 A CN201110386563 A CN 201110386563A CN 102494148 A CN102494148 A CN 102494148A
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- China
- Prior art keywords
- valve core
- seal
- valve
- seat
- spool
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Abstract
The invention discloses a refrigerating and guiding seal valve core of an automobile air conditioner, wherein the refrigerating and guiding seal valve core comprises a valve core rod, a reset spring, an air valve sleeve base, a pipe wall seal ring and a valve core seal base; the upper end of a connection shaft of the valve core seal base is provided with a valve core guiding excircle; the outer diameter of the valve core guiding excircle is in sliding pilot fit with the air inlet cavity of the air valve sleeve base; the valve core guiding excircle is axially provided with an air inlet groove; and a seal ring is arranged between the upper end surface of an axial step and the seal surface of the air valve sleeve base. The upper end of the connection shaft is provided with the valve core guiding excircle, thus ensuring that the valve core rod and the air valve sleeve base are coaxial; and the seal ring is arranged between the upper end surface of the axial step and the seal surface of the air valve sleeve base, thus ensuring that the valve core base and the air valve sleeve base are sealed.
Description
Technical field
The present invention relates to refrigerated air-conditioning system, relate 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.
Summary of the invention
In order to overcome the above-mentioned deficiency that existing technology exists, the purpose of this invention is to provide a kind of automobile air-conditioning refrigeration pilot seal spool.
The technological scheme that the present invention takes 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 a structural representation of the present invention;
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 embodiment of the present invention 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 |
|---|---|---|---|
| CN2011103865635A CN102494148A (en) | 2011-11-29 | 2011-11-29 | Refrigerating and guiding seal valve core of automobile air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103865635A CN102494148A (en) | 2011-11-29 | 2011-11-29 | Refrigerating and guiding seal valve core of automobile air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102494148A true CN102494148A (en) | 2012-06-13 |
Family
ID=46185995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103865635A Pending CN102494148A (en) | 2011-11-29 | 2011-11-29 | Refrigerating and guiding seal valve core of automobile air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102494148A (en) |
-
2011
- 2011-11-29 CN CN2011103865635A patent/CN102494148A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120613 |