CN202418651U - Valve spool of automobile refrigeration air conditioner - Google Patents
Valve spool of automobile refrigeration air conditioner Download PDFInfo
- Publication number
- CN202418651U CN202418651U CN2011204836758U CN201120483675U CN202418651U CN 202418651 U CN202418651 U CN 202418651U CN 2011204836758 U CN2011204836758 U CN 2011204836758U CN 201120483675 U CN201120483675 U CN 201120483675U CN 202418651 U CN202418651 U CN 202418651U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- seat
- valve spool
- valve core
- 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
A valve spool of an automobile refrigeration air conditioner comprises a control valve seat, a valve seat, a pipe wall sealing ring, a valve spool seat, a valve spool rod, a return spring and an elastic sealing ring. The valve spool rod is sleeved in an inner hole of the return spring and an inner hole of the valve seat and is fixedly screwed in a valve rod screw hole of the valve spool seat through an external thread at the outer end of the valve spool rod, and the elastic sealing ring is arranged between the upper end face of a sealing shaft step of the valve spool seat and a sealing surface of the valve seat. With the structure, the valve spool of the automobile refrigeration air conditioner is low in processing requirement and reliable in sealing performance, and axial sealing between the valve spool seat and the valve seat can be ensured.
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.Mostly existing automobile refrigerating air-conditioning spool is for being shape metallic leak-proof structure; Therefore very high to the processing request of valve pocket and spool, especially the processing request of sealing surface is higher, and the yield rate of product is not high; The physical dimension that adds upper valve sleeve and spool part is all very little, and difficulty of processing is big.
The model utility content
The purpose of the utility model provides a kind of automobile refrigerating air-conditioning spool.
The technological scheme that the utility model is taked is:
A kind of automobile refrigerating air-conditioning spool comprises control valve seat, valve seat, tube wall seal ring, valve core case, valve core rod and Returnning spring, is provided with internal thread at the endoporus epimere of control valve seat; Said valve seat is an axle sleeve structure, and the section cylindrical is provided with the outside thread that matches with the control valve seat internal thread above that, on the cylindrical of middle and lower part, is provided with guide ring and seal groove; The lower end surface is a sealing surface; Upper end at valve core rod is provided with limited step, and hypomere is provided with screw thread, and valve core rod is sleeved in the endoporus and valve seat endoporus of Returnning spring; On valve core case, be provided with seal shaft rank and core bar screw; The core bar screw is arranged on the center on seal shaft rank, and valve core rod is rotated with in the core bar screw of valve core case through the outside thread of its lower end, it is characterized in that: between the sealing surface of the upper-end surface on the seal shaft rank of valve core case and valve seat, be provided with elastic seal ring.
Further, said elastic seal ring is a rectangular seal.
Owing between the sealing surface of the upper-end surface on the seal shaft rank of valve core case and valve seat, be provided with elastic seal ring; Like this; Under the effect of Returnning spring; Elastic seal ring can be guaranteed axial seal between valve core case and the valve seat, and can reduce significantly the requirement on machining accuracy of the lower end sealing surface of the upper-end surface on the seal shaft rank of valve core case and valve 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;
Among the figure: the 1-control valve seat; The 2-valve seat; 3-tube wall seal ring; The 4-valve core case; The 5-valve core rod; The 6-Returnning spring; The 7-elastic seal ring; The 21-outside thread; The 22-guide ring; The 23-seal groove; The 24-sealing surface; 41-seal shaft rank; 42-core bar screw.
Embodiment
Illustrate the embodiment of the utility model below:
A kind of automobile refrigerating air-conditioning spool, like Fig. 2, Fig. 3 and shown in Figure 4, it is made up of control valve seat 1, valve seat 2, tube wall seal ring 3, valve core case 4, valve core rod 5, Returnning spring 6 and elastic seal ring 7; Endoporus epimere at control valve seat 1 is provided with internal thread, and said valve seat 2 is an axle sleeve structure, and the section cylindrical is provided with the outside thread 21 that matches with control valve seat 1 internal thread above that; On the cylindrical of middle and lower part, be provided with guide ring 22 and seal groove 23; The lower end surface is a sealing surface 24, is provided with limited step in the upper end of valve core rod 5, and hypomere is provided with screw thread; Valve core rod 5 is sleeved in the endoporus and valve seat 2 endoporus of Returnning spring 6; On valve core case 4, be provided with seal shaft rank 41 and core bar screw 42, core bar screw 42 is arranged on the center on seal shaft rank 41, and valve core rod 5 is rotated with in the core bar screw 42 of valve core case 4 through the outside thread of its lower end; Between the sealing surface 24 of the upper-end surface on the seal shaft rank 41 of valve core case 4 and valve seat 2, be provided with elastic seal ring 7, said elastic seal ring 7 is a rectangular seal.
Claims (2)
1. automobile refrigerating air-conditioning spool; Comprise control valve seat (1), valve seat (2), tube wall seal ring (3), valve core case (4), valve core rod (5) and Returnning spring (6), be provided with internal thread at the endoporus epimere of control valve seat (1), said valve seat (2) is an axle sleeve structure; The section cylindrical is provided with the outside thread (21) that matches with control valve seat (1) internal thread above that; On the cylindrical of middle and lower part, be provided with guide ring (22) and seal groove (23), the lower end surface is sealing surface (24), is provided with limited step in the upper end of valve core rod (5); Hypomere is provided with screw thread; Valve core rod (5) is sleeved in the endoporus and valve seat (2) endoporus of Returnning spring (6), on valve core case (4), is provided with seal shaft rank (41) and core bar screw (42), and core bar screw (42) is arranged on the center of seal shaft rank (41); Valve core rod (5) is rotated with in the core bar screw (42) of valve core case (4) through the outside thread of its lower end, it is characterized in that: between the sealing surface (24) of the upper-end surface on the seal shaft rank (41) of valve core case (4) and valve seat (2), be provided with elastic seal ring (7).
2. according to the said automobile refrigerating air-conditioning of claim 1 spool, it is characterized in that: said elastic seal ring (7) is a rectangular seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204836758U CN202418651U (en) | 2011-11-29 | 2011-11-29 | Valve spool of automobile refrigeration air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204836758U CN202418651U (en) | 2011-11-29 | 2011-11-29 | Valve spool of automobile refrigeration air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418651U true CN202418651U (en) | 2012-09-05 |
Family
ID=46743421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204836758U Expired - Fee Related CN202418651U (en) | 2011-11-29 | 2011-11-29 | Valve spool of automobile refrigeration air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418651U (en) |
-
2011
- 2011-11-29 CN CN2011204836758U patent/CN202418651U/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 |