CN203604675U - Stop valve for air conditioner - Google Patents
Stop valve for air conditioner Download PDFInfo
- Publication number
- CN203604675U CN203604675U CN201320633408.3U CN201320633408U CN203604675U CN 203604675 U CN203604675 U CN 203604675U CN 201320633408 U CN201320633408 U CN 201320633408U CN 203604675 U CN203604675 U CN 203604675U
- Authority
- CN
- China
- Prior art keywords
- spool
- sealing
- valve
- hole
- air conditioner
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 238000004804 winding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 3
- 229910001369 Brass Inorganic materials 0.000 abstract description 2
- 239000010951 brass Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model discloses a stop valve for an air conditioner. The stop valve comprises a valve body provided with a valve element installation hole. A valve element is installed inside the valve element installation hole, an outer circular conical face is formed at the outer edge of the top of the valve element, the top of the valve body is in threaded connection with a cover, and the center of the top wall of the cover is provided with a through hole. A sealing part is positioned in the valve element installation hole and comprises a circular pipe part with the external diameter matched with the aperture of the valve element installation hole, wherein the lower end of the circular pipe part extends into the installation hole, the upper portion of the outer side wall of the circular pipe part is provided with an annular protruding edge which respectively abuts against the inner end face of the cover and the top of the valve body, and when the valve element is unscrewed, the lower end of the sealing part abuts against the outer circular conical face of the valve element. The stop valve has the advantages that good sealing protection is formed through three layers of sealing devices, the service life of the stop valve can be greatly prolonged, and air leakage can be prevented; the inner side of the top of an upper hole is provided with an annular notch, the sealing performance of an upper sealing ring can be improved, brass can be saved, and material cost is reduced.
Description
Technical field
The utility model relates to a kind of break valve for air conditioner.
Background technique
The maintenance of idle call at present stop valve comprises valve body, in valve body, be provided with threaded valve chamber, the vertical spool mounting hole that opening upwards communicates with valve chamber is set on valve body, spool is through spool mounting hole and the valve chamber control valve body internal channel break-make that is threaded, spool mounting hole is by installing block sealing additional, block is provided with the ring packing raised line of sealing use, between spool and spool mounting hole, rely on now and on spool, O shape is set and encloses to realize sealing, but after long-play, there is no small leakage rate, and current block is because regular loading onto, pull down, block and the sealing surface of stop valve are also thereupon regular to be shifted because of mounting or dismounting, and current stop valve is driven valve and is excessively flown out in order to prevent spool, be provided with a snap ring at spool top.
Model utility content
The purpose of this utility model is to provide a kind of break valve for air conditioner, can effectively solve O shape circle distortion after existing stop valve long-play and cause the problem of leakage.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of break valve for air conditioner comprises the valve body that is provided with spool mounting hole, in spool mounting hole, spool is installed, outside, described spool top eaves offers outer conical surface, valve body top is bolted with block, described block roof center is provided with through hole, spool mounting hole oral area is positioned with Sealing, described Sealing comprises the pipe portion that an external diameter mates with spool mounting hole aperture, described pipe subordinate end stretches in mounting hole, the outer side wall top of described pipe portion is provided with convex annular eaves, described convex annular eaves respectively with block interior edge face and valve body top butt, in the time that spool is outwarded winding, the lower end of Sealing is pressed in the outer conical surface of spool.
Preferably, the oral area inner edge eaves of described mounting hole offers internal conical surface, described convex annular eaves and internal conical surface sealing; Utilize convex annular eaves to contact with female cone upper thread and form ring packing.
Optionally, the top planes of described spool mounting hole is provided with bulge loop, the lower end surface of described convex annular eaves and convex ring for sealing; Utilize the lower end surface of bulge loop and convex annular eaves to form ring packing.
Further, the lower end surface of described convex annular eaves is provided with the groove corresponding with bulge loop; Further better make convex annular eaves contact with bulge loop, reach better sealing effect.
Preferably, described Sealing cross section is inverted L shaped, and the cross section of described convex annular eaves is rectangle or semicircle, and the front-end face of described pipe portion is plane or arc shaped surface; The bottom and the outer conical surface close contact more that stretch into internal conical surface, Sealing at convex annular eaves, reach good sealing effect.
Preferably, the upper portion side wall of described spool has circular groove, and described lower seal is that O shape circle is arranged in circular groove; Be conducive to the fixing of lower seal.
Preferably, the end face of described spool has along central axis inner hexagonal hole straight down, on the relative block of described inner hexagonal hole, has the through hole that facilitates instrument to stretch into inner hexagonal hole, in described through hole, is provided with sealing cap; In the time of maintenance, just need not open block, directly by just turning spool, block is not opened like this, can guarantee that Sealing is not subjected to displacement, thereby guarantee that this installs good sealing effect, use sealing cap to seal the through hole on block, in not needing to turn spool, can guarantee not have foreign matter to enter in spool mounting hole, simultaneously can anti-sealing enter, extends stop valve working life.
Compared with prior art, the utility model has the advantages that: form first layer sealing by the lower seal that is arranged on spool top, in the time that spool is outwarded winding, Sealing bottom and spool compress and form second layer sealing, by be arranged between the convex annular eaves of Sealing at spool mounting hole top and block, form the three-layer sealed, thereby form good seal protection, and when spool is not outwarded winding, convex annular eaves, the pipe portion of Sealing and internal conical surface form Seal cage, so no matter spool is in any position, can form two seals defence line together with lower seal, can greatly improve the physical life of stop valve, prevent that gas leakage event from occurring, spool mounting hole inside top is opened internal conical surface simultaneously, can make the sealing of Sealing be improved, can save again brass material, reduce cost of material.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of break valve for air conditioner of the utility model;
Fig. 2 is the structural representation of valve body in a kind of break valve for air conditioner of the utility model;
Fig. 3 is the structural representation of spool in a kind of break valve for air conditioner of the utility model;
Fig. 4 is the partial enlarged drawing of A place the first structure in Fig. 1;
Fig. 5 is a kind of structural representation of Sealing in a kind of break valve for air conditioner of the utility model;
Fig. 6 is the another kind of structural representation of Sealing in a kind of break valve for air conditioner of the utility model;
Fig. 7 is the partial enlarged drawing of A place the second structure in Fig. 1;
Fig. 8 is the partial enlarged drawing of the third structure of A place in Fig. 1.
Embodiment
Consult the embodiment that Fig. 1 is a kind of break valve for air conditioner of the utility model, a kind of break valve for air conditioner, comprise valve body 1, be arranged on the valve chamber 2 in valve body 1, be arranged on the spool mounting hole 3 communicating with valve chamber 2 in valve body 1 and the spool 4 that screws in valve chamber 2 through spool mounting hole 3, on described valve body 1, be also rotary with the block 5 that spool mounting hole 3 is sealed, between the top of described spool 4 and spool mounting hole 3 sidewalls, be provided with lower seal 6, described spool mounting hole 3 oral areas are positioned with Sealing 9, as shown in Figure 2, the ingress of described spool mounting hole 3 has inside internal conical surface 7, namely the diameter of end face is greater than the diameter of bottom surface, as shown in Figure 5, described Sealing 9 comprises the pipe portion 17 that an external diameter mates with spool mounting hole 3 apertures, described pipe portion stretches in mounting hole 17 lower ends, the outer side wall top of described pipe portion 17 is provided with convex annular eaves 8, described convex annular eaves 8 is against on internal conical surface 7 and forms and seal, the cross section of described convex annular eaves 8 is rectangle, the front-end face 16 of described pipe portion 17 is plane, the end face of described Sealing 9 contacts with the bottom surface of block 5, in the time that spool 4 is outwarded winding, the lower end of Sealing 9 is pressed in the outer conical surface 14 of spool 4, the end face of described spool 4 has along central axis inner hexagonal hole 12 straight down, on the relative block 5 of described inner hexagonal hole 12, have the through hole that facilitates instrument to stretch into inner hexagonal hole 12, in described through hole, be provided with sealing cap 13.
As shown in Figure 3, the top of described spool 4 is frustoconic shape, and described spool 4 outside, top eaves offer outer conical surface 14, and the upper portion side wall of described spool 4 has circular groove 11, and described lower seal 6 is arranged in circular groove 11 for O shape is enclosed.
As shown in Figure 6, the another kind of structural type of Sealing 9, the cross section of described convex annular eaves 8 is semicircle, the front-end face 16 of described pipe portion 17 is arc shaped surface, can reach equally good sealing effect.
In the time that needs detect, open the sealing cap 13 on block 5, utilize allen driver to stretch into from the through hole of blocking a shot 5, be inserted in the inner hexagonal hole 12 of spool 4, spool 4 spin-ups are detected, as shown in Figure 4, now lower seal 6 forms first sealing between spool 4 and spool mounting hole 3 walls, the bottom of Sealing 9 withstands in spool 4 top outer conical surface 14, form second sealing 10 with spool mounting hole 3 sidewalls, convex annular eaves 8 stretches between block 5 bottom surfaces and internal conical surface 7, convex annular eaves 8, Sealing 9 pipe portions 17 and internal conical surface 7 form three seals chamber 15, the end face of Sealing 9 is excessively driven valve and damages with block 5 inwall contact preventing spools 4, after detecting, spool 4 is screwed off to complete valve, again sealing cap 13 is covered back.In said process, without opening block 5, also can guarantee that in whole process, Sealing 9 can not move, guarantee good sealing, save the snap ring in stop valve in the past simultaneously, simplify the structure of stop valve.
As shown in Figure 7, internal conical surface 7 also can be set, and the top planes that changes spool mounting hole 3 into is provided with bulge loop 19, the lower end surface of described convex annular eaves 8 and bulge loop 19 seal, further as shown in Figure 8, the lower end surface of described convex annular eaves 8 is provided with the groove corresponding with bulge loop 19 20.Can reach equally good sealing effect.
The foregoing is only specific embodiment of the utility model, but technical characteristics of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification are all encompassed among the scope of the claims of the present utility model.
Claims (7)
1. a break valve for air conditioner, comprise the valve body (1) that is provided with spool mounting hole (3), spool (4) is installed in spool mounting hole (3), outside, described spool (4) top eaves offers outer conical surface (14), valve body (1) top is bolted with block (5), described block (5) roof center is provided with through hole (18), it is characterized in that: spool mounting hole (3) oral area is positioned with Sealing (9), described Sealing (9) comprises the pipe portion (17) that an external diameter mates with spool mounting hole (3) aperture, described pipe portion (17) stretches into lower end in mounting hole (3), the outer side wall top of described pipe portion (17) is provided with convex annular eaves (8), described convex annular eaves (8) respectively with block (5) interior edge face and valve body (1) top butt, in the time that spool (4) is outwarded winding, the lower end of Sealing (9) is pressed in the outer conical surface (14) of spool (4).
2. a kind of break valve for air conditioner as claimed in claim 1, is characterized in that: the oral area inner edge eaves of described mounting hole (3) offers internal conical surface (7), described convex annular eaves (8) and internal conical surface (7) sealing.
3. a kind of break valve for air conditioner as claimed in claim 1, is characterized in that: the top planes of described spool mounting hole (3) is provided with bulge loop (19), the lower end surface of described convex annular eaves (8) and bulge loop (19) sealing.
4. a kind of break valve for air conditioner as claimed in claim 3, is characterized in that: the lower end surface of described convex annular eaves (8) is provided with the groove (20) corresponding with bulge loop (19).
5. a kind of break valve for air conditioner as described in any one in claim 1 to 4, it is characterized in that: described Sealing (9) cross section is inverted L shaped, the cross section of described convex annular eaves (8) is rectangle or semicircle, and the front-end face (16) of described pipe portion (17) is plane or arc shaped surface.
6. a kind of break valve for air conditioner as described in any one in claim 1 to 4, is characterized in that: the upper portion side wall of described spool (4) has circular groove (11), and described lower seal (6) is arranged in circular groove (11) for O shape is enclosed.
7. a kind of break valve for air conditioner as described in any one in claim 1 to 4, it is characterized in that: the end face of described spool (4) has along central axis inner hexagonal hole (12) straight down, on the relative block (5) of described inner hexagonal hole (12), have the through hole that facilitates instrument to stretch into inner hexagonal hole (12), in described through hole, be provided with sealing cap (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633408.3U CN203604675U (en) | 2013-10-14 | 2013-10-14 | Stop valve for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633408.3U CN203604675U (en) | 2013-10-14 | 2013-10-14 | Stop valve for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604675U true CN203604675U (en) | 2014-05-21 |
Family
ID=50717349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320633408.3U Expired - Lifetime CN203604675U (en) | 2013-10-14 | 2013-10-14 | Stop valve for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604675U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4265947A4 (en) * | 2020-12-16 | 2024-05-22 | Zhejiang Dunan Artificial Env Co Ltd | Stop valve and air conditioning system having same |
-
2013
- 2013-10-14 CN CN201320633408.3U patent/CN203604675U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4265947A4 (en) * | 2020-12-16 | 2024-05-22 | Zhejiang Dunan Artificial Env Co Ltd | Stop valve and air conditioning system having same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |