CN207634719U - A kind of drain tap assembly of drier - Google Patents
A kind of drain tap assembly of drier Download PDFInfo
- Publication number
- CN207634719U CN207634719U CN201721482172.2U CN201721482172U CN207634719U CN 207634719 U CN207634719 U CN 207634719U CN 201721482172 U CN201721482172 U CN 201721482172U CN 207634719 U CN207634719 U CN 207634719U
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- China
- Prior art keywords
- piston
- valve body
- rubber layer
- drier
- lip
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Abstract
The utility model discloses a kind of drain tap assemblies of drier, including valve body, piston is equipped in valve body, there is seal receptacle by piston seat abutting in valve body, crimp spring between piston and piston seat, the outer wall of piston seat forms the upper flange and lower flange being spaced apart up and down, seal receptacle includes metallic framework and the rubber layer that is coated on outside metallic framework, the lower part outer wall of piston forms outside horizontal-extending seal head, the inner edge of rubber layer forms the abutting lip for extending downwardly and compressing seal head upper surface, the outer rim upper end of rubber layer forms the upper sealing lip with valve body interference fit, the peripheral-edge lower of rubber layer forms the side seal lip contacted with valve body, the outer rim lower end of rubber layer forms the lower sealing lip with upper flange upper surface interference fit.The utility model sealing effect is good, and service life is long.
Description
Technical field
The utility model is related to technical field of automobile parts, more particularly, to a kind of drain tap assembly of drier.
Background technology
The drain tap assembly of drier is traditionally used for as shown in Figure 1, forming one on its valve body 111 for piston 113
The guide ring 112 moved up and down, the space of 113 upper end of piston are the inlet chamber 114 being connected to control mouth, in inlet chamber 114
Gas pushes piston 113 to move down, and vulcanizing on piston 113 has rubber 115, has metal by the abutting of piston seat 120 on valve body 111
The seal receptacle 116 of material, seal receptacle 116 abut sealing with rubber 115, and the upper and lower end face of seal receptacle 116 is O-shaped by first respectively
Circle 117 and the second O-ring 118 seal, and the lower part of piston 113 abuts spring 122, and piston seat 120 is fixed by a baffle ring 121
On valve body 111, the air cavity 115 for being connected to normal air inlet is formed between piston 113 and piston seat 120, after piston 113 moves down
Rubber 115 is detached from seal receptacle 116, and the gas in air cavity 115, which is just walked from above, finally to be run out of from gas outlet, in the air cavity 115
Gas is the gas after drier is dried.
There are following problems for this kind of structure：One, it is that cusp cutting contacts with rubber 115 due to seal receptacle 116, piston
About 113 numbers of occurrence more than one, can cause the position contacted with seal receptacle 116 on rubber 115 to be cut, influence sealing effect；
Two, the first O-ring 117 and the second O-ring 118 are the O-ring of fixed, vulnerable for a long time.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, and it is total to provide a kind of drain tap of drier
At sealing effect is good, and service life is long.
To achieve the goals above, the utility model adopts the following technical solution：
A kind of drain tap assembly of drier, including valve body, the valve body is interior to be equipped with piston, passes through piston seat in valve body
Abutting has a seal receptacle, crimp spring between the piston and piston seat, and the outer wall of the piston seat is formed to be spaced apart up and down
Upper flange and lower flange, the seal receptacle include metallic framework and the rubber layer that is coated on outside metallic framework, under the piston
Portion's outer wall forms outside horizontal-extending seal head, and the inner edge of the rubber layer, which is formed, to be extended downwardly and compress seal head upper surface
Abutting lip, the outer rim upper end of rubber layer forms the upper sealing lip with valve body interference fit, the peripheral-edge lower of rubber layer formed with
The side seal lip that valve body contacts, the outer rim lower end of rubber layer form the lower sealing lip with upper flange upper surface interference fit.
Guide ring is equipped in the valve body, the top of the piston is moved up and down along guide ring inner wall, the guide ring
Interior the first air cavity that connection control mouth is formed above piston.
The bulge loop extended vertically downwards, superposed rubber layer and bulge loop clearance fit are formed in the piston.
The lower face of the lower flange, which abuts, the hole baffle ring for being caught in valve body, the lower end of the piston and piston seat it
Between form the second air cavity for being connected to normal air inlet.
The utility model has the beneficial effects that：Impact several times are carried out with horizontal-extending seal head by abutting lip, it will not
Damage abuts lip, for a long time using can still keep good sealing effect；Upper sealing lip can paste more after by air pressure simultaneously
Tightly, it can be further ensured that sealing effect, also substantially prolong service life.
Description of the drawings
Fig. 1 is the structural schematic diagram of the drain tap assembly of the prior art；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the enlarged drawing at A in Fig. 2.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and detailed description：
As shown in Figure 2 and Figure 3, the drain tap assembly of a kind of drier, including valve body 1, the valve body 1 is interior to be equipped with piston
2, the valve body 1 is interior to be equipped with guide ring 11, and the top of the piston 2 is moved up and down along 11 inner wall of guide ring, while in piston 2
External wall of upper portion be equipped with the O-ring that coordinate with 11 inner wall sealing of guide ring, 2 top of piston is located in the guide ring 11 and forms company
First air cavity 12 of logical control mouth.Gas into control mouth directly comes the first air cavity 12 and piston 2 is pushed to move downward.
There are seal receptacle, the specially described seal receptacle to include metallic framework 3 and be coated on by the abutting of piston seat 5 in valve body 1
Rubber layer 31 outside metallic framework 3, the piston 2 is interior to form the bulge loop 13 extended vertically downwards, superposed rubber layer 31
With 13 clearance fit of bulge loop, the lower face of metallic framework 3 is locally exposed, which is abutted by the upper surface of piston seat 5.
Crimp spring 4 between the piston 2 and piston seat 5, the outer wall of the piston seat 5 formed be spaced apart up and down it is upper
The lower part outer wall of flange 52 and lower flange 51, the piston 2 forms outside horizontal-extending seal head 21, the rubber layer 31
Inner edge forms the abutting lip 32 for extending downwardly and compressing 21 upper surface of seal head, by abutting lip 32 and horizontal-extending seal head
21 carry out impact several times, will not damage and abut lip 32, for a long time using can still keep good sealing effect.
The outer rim upper end of rubber layer 31 forms the upper sealing lip 33 being interference fitted with valve body 1, and upper sealing lip 33 is in valve body 1
Interference seal at side wall and upper wall two；The peripheral-edge lower of rubber layer 31 forms the side seal lip 34 contacted with valve body 1, and side is close
The quantity of envelope lip 34 is two and is alternatively arranged that the outer rim lower end of rubber layer 31 is formed and 52 upper surface of upper flange interference fit
Lower sealing lip 35.
The lower face of the lower flange 51, which abuts, the hole baffle ring 6 for being caught in valve body 1, the lower end of the piston 2 and work
The second air cavity 7 for being connected to normal air inlet is formed between obturating plug 5.
The operation principle of the utility model is：Gas into control mouth directly come the first air cavity 12 and push piston 2 to
Lower movement, the seal head 21 of piston 2, which is detached from, abuts lip 32, and the gas in the second air cavity 7 is just run out of from top to gas outlet (figure at this time
In do not illustrate gas outlet), while gap of the gas in a part of second air cavity 7 across rubber layer 31 and bulge loop 13 so that
Upper sealing lip 33 pastes tighter after by air pressure, can be further ensured that sealing effect.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of drain tap assembly of drier, including valve body (1), the valve body (1) is interior to be equipped with piston (2), and valve body (1) is interior
There are seal receptacle, crimp spring (4) between the piston (2) and piston seat (5) by piston seat (5) abutting, it is characterised in that：Institute
Stating the outer wall of piston seat (5), to form the upper flange (52) being spaced apart up and down and lower flange (51), the seal receptacle include metal
Skeleton (3) and it is coated on the rubber layer (31) of metallic framework (3) outside, the lower part outer wall of the piston (2) forms outside level and prolongs
The seal head (21) stretched, the inner edge of the rubber layer (31) form the abutting lip for extending downwardly and compressing seal head (21) upper surface
(32), the outer rim upper end of rubber layer (31) forms the upper sealing lip (33) with valve body (1) interference fit, the outer rim of rubber layer (31)
The side seal lip (34) contacted with valve body (1) is formed at lower part, and the outer rim lower end of rubber layer (31) is formed and upper flange (52)
The lower sealing lip (35) of upper surface interference fit.
2. a kind of drain tap assembly of drier as described in claim 1, it is characterised in that：It is equipped with and leads in the valve body (1)
To ring (11), the top of the piston (2) is moved up and down along guide ring (11) inner wall, and piston is located in the guide ring (11)
(2) top forms the first air cavity (12) of connection control mouth.
3. a kind of drain tap assembly of drier as claimed in claim 2, it is characterised in that：Formed in the piston (2) to
The bulge loop (13) extended vertically down, superposed rubber layer (31) and bulge loop (13) clearance fit.
4. a kind of drain tap assembly of drier as described in claims 1 to 3 any one, it is characterised in that：It is convex under described
The lower face of edge (51), which abuts, has the hole for being caught in valve body (1) with baffle ring (6), the lower end of the piston (2) and piston seat (5) it
Between form the second air cavity (7) for being connected to normal air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482172.2U CN207634719U (en) | 2017-11-09 | 2017-11-09 | A kind of drain tap assembly of drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482172.2U CN207634719U (en) | 2017-11-09 | 2017-11-09 | A kind of drain tap assembly of drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207634719U true CN207634719U (en) | 2018-07-20 |
Family
ID=62856561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721482172.2U Active CN207634719U (en) | 2017-11-09 | 2017-11-09 | A kind of drain tap assembly of drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207634719U (en) |
-
2017
- 2017-11-09 CN CN201721482172.2U patent/CN207634719U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Drain tap assembly of desicator Effective date of registration: 20200703 Granted publication date: 20180720 Pledgee: Zhejiang Zhuji Rural Commercial Bank Co., Ltd. Jiyang sub branch Pledgor: ZHEJIANG ORIENT STAR TECHNOLOGY Co.,Ltd. Registration number: Y2020330000428 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210724 Granted publication date: 20180720 Pledgee: Zhejiang Zhuji Rural Commercial Bank Co., Ltd. Jiyang sub branch Pledgor: ZHEJIANG ORIENT STAR TECHNOLOGY Co.,Ltd. Registration number: Y2020330000428 |