CN202806741U - Automobile brake liquid storage tank vent cap - Google Patents
Automobile brake liquid storage tank vent cap Download PDFInfo
- Publication number
- CN202806741U CN202806741U CN 201220344974 CN201220344974U CN202806741U CN 202806741 U CN202806741 U CN 202806741U CN 201220344974 CN201220344974 CN 201220344974 CN 201220344974 U CN201220344974 U CN 201220344974U CN 202806741 U CN202806741 U CN 202806741U
- Authority
- CN
- China
- Prior art keywords
- spiral cover
- fluid reservoir
- automobile brake
- storage tank
- cushion chamber
- 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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- Transmission Of Braking Force In Braking Systems (AREA)
- Closures For Containers (AREA)
Abstract
An automobile brake liquid storage tank vent cap comprises a screw cap and a screw cap support. The screw cap is provided with an internal thread and is in threaded connection with a vent pipe orifice of a liquid storage tank, and a vent passage for realizing ventilation between a cavity of the liquid storage tank and the outside is formed at the thread joint. The screw cap support is positioned between the screw cap and the vent pipe orifice of the liquid storage tank, and is hermetically connected with the vent pipe orifice of the liquid storage tank, and a buffer cavity is formed on the screw cap support. A vent hole communicating the buffer cavity with the vent pipe orifice is arranged at one end, distant from the screw cap, of the screw cap support; and a waterproof breathable film is covered at one end, close to the screw cap, of the buffer chamber. A vent gap communicated with the vent passage is reserved between the screw cap and the screw cap support, and the buffer chamber and the vent gap are subjected to ventilation through the waterproof breathable film. The automobile brake liquid storage tank is simple in structure. The problem that liquid in the automobile brake liquid storage tank permeates out of the liquid storage tank through the vent pipe orifice is avoided, and the possibility that external water is effectively prevented from entering the liquid storage tank through the vent pipe orifice can be avoided effectively.
Description
Technical field
The utility model relates to the brake system of car field, relates to particularly a kind of aeration lid of liquid storing tank braking.
Background technology
The braking liquid that the automobile brake fluid reservoir stores is used for the required braking liquid of compensation braking, the inside and outside general unanimously guarantee braking liquid of pressure of fluid reservoir can flow out naturally from the outlet that the fluid reservoir bottom is connected with master brake cylinder, vent path that is interlinked to the outside in so general fluid reservoir is provided with, to keep the fluid reservoir internal and external pressure balance, but need guarantee that simultaneously the braking liquid in the fluid reservoir is difficult for being splashed to the fluid reservoir outside from vent path, therefore, general fluid reservoir also is provided with aeration lid, this lid is used for covering vent path, and this lid has such structure, be that lid is provided with the air extractor vent that communicates with the external world, and the braking liquid in the fluid reservoir is difficult for sputtering from the air extractor vent of this lid, yet, aeration lid in existing generally but can not suppress braking liquid well from the air extractor vent outflow of lid, and, more seriously, existing aeration lid can not prevent that extraneous water from entering in the fluid reservoir from air extractor vent, as everyone knows, the main component of braking liquid is alcohol, has hygroscopic character, hygroscopic character is the major cause that the braking liquid boiling point descends, yet the condition as braking liquid has higher boiling exactly, be difficult for gasification under the high temperature, otherwise will produce air-resistance phenomenon at pipeline, make braking effect variation or inefficacy.Therefore, liquid storing tank braking needs so a kind of aeration lid, and namely this aeration lid should make in the fluid reservoir and ventilate with extraneous, can also make the braking liquid in the fluid reservoir be difficult for sputtering, and can avoid again extraneous water to enter fluid reservoir.
The utility model content
The purpose of this utility model can not prevent effectively that for the vent cap of the automobile brake fluid reservoir of solution prior art extraneous water from entering the problem of liquid storing tank braking, the spy provides a kind of can making in the fluid reservoir to ventilate with extraneous, can also make the braking liquid in the fluid reservoir be difficult for sputtering, can avoid again extraneous water to enter the automobile brake fluid reservoir spiral cover of fluid reservoir.
A kind of automobile brake fluid reservoir vent cap of the present utility model comprises: spiral cover, be provided with negative thread, and be threaded with the ventilation mouth of pipe of fluid reservoir, and the air passage of in the threaded connection place is formed with for the fluid reservoir chamber, ventilating with the external world; The spiral cover support, between the ventilation mouth of pipe of spiral cover and fluid reservoir, and be tightly connected with the ventilation mouth of pipe of fluid reservoir, be formed with cushion chamber on the described spiral cover support, end away from spiral cover of described spiral cover support is provided with the air extractor vent that is communicated with described cushion chamber (4a) and the ventilation mouth of pipe, one end of the close spiral cover of described cushion chamber is provided with waterproof ventilated membrane, is provided with the airspace that is connected with air passage between described spiral cover and the spiral cover support, and described cushion chamber is by waterproof ventilated membrane and airspace ventilation.
Through further improving, described air extractor vent is positioned at the sidewall of described spiral cover support, is provided with buffering liquid enters cushion chamber by air extractor vent buffer wall in the described cushion chamber.
Through further improving, be formed with dashpot on the described buffer wall.
Through further improving, the end away from spiral cover of described spiral cover support is provided with at least one gear liquid muscle.
Through further improving, be provided with a packing seal that seals between the mouth of pipe of described spiral cover support and fluid reservoir, described packing seal is set on the gear liquid muscle.
Through further improving, be provided with annular retaining ring in the described spiral cover, described spiral cover is pressed on the spiral cover support in advance by annular retaining ring, and described annular retaining ring is provided with the opening of ventilating between air passage and waterproof ventilated membrane.
Through further improving, the top convex of described spiral cover is sent as an envoy to and is formed with an accommodation section in the lid, described waterproof ventilated membrane with cushion chamber an end stretch in the described accommodation section.
Through further improving, be provided with the radially inner draw-in groove of opening in the described spiral cover, the edge clamp along the breather pipe bore to direction of described spiral cover support are in described draw-in groove.
Through further improving, described air channel is the air channel that the negative thread of spiral cover forms along ventilation mouth of pipe axial direction.
Technical scheme by automobile brake fluid reservoir vent cap of the present utility model as can be known, the spiral cover support is provided with the liquid that cushion chamber can slacken in the petrol storage tank and enters, the energy of flow of the liquid that enters cushion chamber is effectively slackened, waterproof ventilated membrane covers an end of the close spiral cover of cushion chamber, thereby make the liquid that enters in the cushion chamber be difficult for arriving the waterproof ventilated membrane place, effectively prevented the impact of liquid to the waterproof ventilated membrane place, stoped liquid to ooze out, air passage is arranged on the threaded connection place of the ventilation mouth of pipe of spiral cover and fluid reservoir, the disguise of air passage can greatly reduce extraneous water by this air passage enter in the spiral cover may, and the water that may enter also is convenient to flow out, and waterproof ventilated membrane not only can carry out inside and outside gas exchange, can also effectively prevent to enter the interior water of spiral cover and enter cushion chamber, thereby avoided making liquid quality variation in the fluid reservoir because of entering of water, in a word, this programme can prevent effectively that not only the liquid in the fluid reservoir from flowing out outside the fluid reservoir by whole ventilation path, can also prevent effectively that extraneous water from entering in the fluid reservoir.
Description of drawings
The cutaway view of a kind of embodiment of a kind of automobile brake fluid reservoir vent cap that Fig. 1 provides for the utility model.
The explosive view of a kind of embodiment of a kind of automobile brake fluid reservoir vent cap that Fig. 2 provides for the utility model.
The back view of a kind of embodiment of a kind of spiral cover support that Fig. 3 provides for the utility model.
The block diagram of a kind of embodiment of a kind of spiral cover that Fig. 4 provides for the utility model.
The specific embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figures 1 to 4, a kind of automobile brake fluid reservoir vent cap of present embodiment comprises: spiral cover 2, be provided with negative thread, and be threaded with the ventilation mouth of pipe 1a of fluid reservoir 1, and the air passage 2e that in the threaded connection place is formed with for the fluid reservoir chamber, ventilates with the external world; Spiral cover support 4, between the ventilation mouth of pipe of spiral cover 2 and fluid reservoir 1, and be tightly connected with the ventilation mouth of pipe 1a of fluid reservoir 1, be formed with cushion chamber 4a on the described spiral cover support 4, end away from spiral cover 2 of described spiral cover support 4 is provided with the air extractor vent 4b that is communicated with described cushion chamber 4a and ventilation mouth of pipe 1a, one end of the close spiral cover 2 of described cushion chamber 4a is coated with waterproof ventilated membrane 3, be provided with the airspace f that is connected with air passage 2e between described spiral cover 2 and the spiral cover support 4, described cushion chamber 4a is by waterproof ventilated membrane 3 and airspace f ventilation.The air passage 2e of present embodiment is the air channel 2e that the negative thread of spiral cover 2 forms along ventilation mouth of pipe 1a axial direction, fluid reservoir 1 indicates with the wherein paths e-f-g route as shown in Figure 2 of extraneous ventilation, air passage 2e is arranged on the threaded connection place of the ventilation mouth of pipe 1a of spiral cover 2 and fluid reservoir 1, therefore air passage seems to have disguise, can greatly reduce extraneous water by this air passage 2e enter in the spiral cover 2 may, and the water that may enter also is convenient to flow out, and waterproof ventilated membrane 3 not only can carry out inside and outside ventilation, can also effectively prevent to enter the water in the spiral cover 2 and enter cushion chamber 4a, thereby avoided making liquid quality variation in the fluid reservoir 1 because of entering of water, spiral cover support 4 is provided with the liquid that cushion chamber 4a can slacken in the petrol storage tank 1 and enters, the energy of flow of the liquid that enters cushion chamber 4a is effectively slackened, waterproof ventilated membrane 3 covers an end of the close spiral cover 2 of cushion chamber 4a, thereby make the liquid that enters in the cushion chamber be difficult for arriving waterproof ventilated membrane 3 places, effectively prevent the impact of liquid to waterproof ventilated membrane 3 places, stoped liquid to ooze out.In a word, present embodiment can prevent effectively that not only the liquid in the fluid reservoir from flowing out outside the fluid reservoir 1 by whole ventilation path, can also prevent effectively that extraneous water from entering in the fluid reservoir 1.
In the present embodiment, described air extractor vent 4b is positioned at the sidewall of described spiral cover support 4, be provided with buffering liquid enters cushion chamber 4a by air extractor vent 4b buffer wall 4c in the described cushion chamber 4a, like this, air extractor vent 4b is positioned at the sidewall of described spiral cover support 4, make the liquid in the fluid reservoir be difficult for entering cushion chamber 4a, and liquid is in oscillatory process, the liquid that may enter cushion chamber 4a is cushioned wall 4c to be stopped, partially liq is returned and flow out cushion chamber 4a, greatly slacken liquid and flow to waterproof ventilated membrane 3 directions, and be formed with dashpot 4d on the described buffer wall 4c, can further reduce the energy of flow of liquid.
In order to reduce liquid at the Oscillation Amplitude at the ventilation mouth of pipe 1a place of fluid reservoir 1, present embodiment is provided with at least one gear liquid muscle 4e at the end away from spiral cover 2 of described spiral cover support 4.And, be provided with a packing seal that seals 5 between the mouth of pipe 1a of described spiral cover support 4 and fluid reservoir 1, described packing seal 5 is set on the gear liquid muscle 4e, can effectively guarantee the leak tightness of contact position between spiral cover support 4 and the fluid reservoir 1, prevents that liquid from oozing out from fluid reservoir 1.
And, be provided with annular retaining ring 2a in the described spiral cover 2 of present embodiment, described spiral cover 2 is pressed on the spiral cover support 4 in advance by annular retaining ring 2a, described annular retaining ring 2a is provided with the opening 2b that ventilates between air passage 2e and waterproof ventilated membrane 3, like this, described spiral cover 2 is pressed on the spiral cover support 4 in advance by annular retaining ring 2a, not only provide precompressed compression to the leak tightness of spiral cover support 4 and fluid reservoir 1, guarantee leak tightness, and gas can only by opening 2b turnover, can be slackened extraneous water and enter the possibility that arrives waterproof ventilated membrane 3 places by air passage 2e greatly.
Arrive waterproof ventilated membrane 3 places and may enter liquid splash in the cushion chamber 4a to waterproof ventilated membrane 3 places in order effectively to prevent to enter water in spiral cover 2 lids, the top convex of the described spiral cover 2 of present embodiment is formed with an accommodation section 2c in sening as an envoy to and covering, described waterproof ventilated membrane 3 stretches in the 2c of described accommodation section with the end of cushion chamber 4a, like this, waterproof ventilated membrane 3 is higher than ventilation mouth of pipe 1a at the height of the outside vertical direction of the ventilation mouth of pipe 1a of fluid reservoir 1, air passage 2e and most of airspace f, the water that no matter may enter in spiral cover 2 lids still may enter the interior liquid of cushion chamber 4a, all almost can not arrive waterproof ventilated membrane 3 places again.
Be provided with the radially inner draw-in groove 2d of opening in the described spiral cover 2 of present embodiment, the edge clamp of the edge ventilation mouth of pipe 1a radial direction of described spiral cover support 4 are in described draw-in groove 2d, when assembling, first with the edge clamp of spiral cover support 4 in described draw-in groove 2d, then spiral cover 2 precessions are threaded with the ventilation mouth of pipe 1a of fluid reservoir 1 and give certain predetermincd tension, it is loosening to prevent that spiral cover support 4 from occuring, and then has avoided affecting the possibility of serviceability.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. automobile brake fluid reservoir vent cap comprises: spiral cover (2), be provided with negative thread, be threaded with the ventilation mouth of pipe (1a) of fluid reservoir (1), and in the threaded connection place is formed with for the fluid reservoir chamber with the air passage (2e) of external world's ventilation; Spiral cover support (4), be positioned between the ventilation mouth of pipe of spiral cover (2) and fluid reservoir (1), and be tightly connected with the ventilation mouth of pipe (1a) of fluid reservoir (1), it is characterized in that, be formed with cushion chamber (4a) on the described spiral cover support (4), end away from spiral cover (2) of described spiral cover support (4) is provided with the air extractor vent (4b) that is communicated with described cushion chamber (4a) and the ventilation mouth of pipe (1a), one end of the close spiral cover (2) of described cushion chamber (4a) is coated with waterproof ventilated membrane (3), be provided with the airspace (f) that is connected with air passage (2e) between described spiral cover (2) and the spiral cover support (4), described cushion chamber (4a) is by waterproof ventilated membrane (3) and airspace (f) ventilation.
2. a kind of automobile brake fluid reservoir vent cap according to claim 1, it is characterized in that: described air extractor vent (4b) is positioned at the sidewall of described spiral cover support (4), is provided with buffering liquid enters cushion chamber (4a) by air extractor vent (4b) buffer wall (4c) in the described cushion chamber (4a).
3. a kind of automobile brake fluid reservoir vent cap according to claim 2 is characterized in that: be formed with dashpot (4d) on the described buffer wall (4c).
4. a kind of automobile brake fluid reservoir vent cap according to claim 1 is characterized in that: the end away from spiral cover (2) of described spiral cover support (4) is provided with at least one gear liquid muscle (4e).
5. a kind of automobile brake fluid reservoir vent cap according to claim 4, it is characterized in that: be provided with a packing seal that seals (5) between the mouth of pipe of described spiral cover support (4) and fluid reservoir (1), described packing seal (5) is set on the gear liquid muscle (4e).
6. a kind of automobile brake fluid reservoir vent cap according to claim 1, it is characterized in that: be provided with annular retaining ring (2a) in the described spiral cover (2), described spiral cover (2) is pressed on the spiral cover support (4) in advance by annular retaining ring (2a), and described annular retaining ring (2a) is provided with the opening (2b) of ventilating between air passage (2e) and waterproof ventilated membrane (3).
7. a kind of automobile brake fluid reservoir vent cap according to claim 1, it is characterized in that: the top convex of described spiral cover (2) is formed with an accommodation section (2c) in sening as an envoy to and covering, and described waterproof ventilated membrane (3) stretches in described accommodation section (2c) with an end of cushion chamber (4a).
8. a kind of automobile brake fluid reservoir vent cap according to claim 1, it is characterized in that: be provided with the radially inner draw-in groove of opening (2d) in the described spiral cover (2), the edge clamp of the edge ventilation mouth of pipe (1a) radial direction of described spiral cover support (4) are in described draw-in groove (2d).
9. a kind of automobile brake fluid reservoir vent cap according to claim 1 is characterized in that: the air channel (2e) that described air channel (2e) forms along the ventilation mouth of pipe (1a) axial direction for the negative thread of spiral cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344974 CN202806741U (en) | 2012-07-17 | 2012-07-17 | Automobile brake liquid storage tank vent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220344974 CN202806741U (en) | 2012-07-17 | 2012-07-17 | Automobile brake liquid storage tank vent cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202806741U true CN202806741U (en) | 2013-03-20 |
Family
ID=47865669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220344974 Expired - Fee Related CN202806741U (en) | 2012-07-17 | 2012-07-17 | Automobile brake liquid storage tank vent cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202806741U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741983A (en) * | 2016-11-18 | 2017-05-31 | 徐丛逸 | A kind of multi-functional ventilating device for liquid storage container |
| CN108167639A (en) * | 2017-12-26 | 2018-06-15 | 广东万合汽车供应链管理有限公司 | A kind of air reservoir of the convenient semitrailer of damping gas storage |
| CN109383922A (en) * | 2017-08-14 | 2019-02-26 | 罗伯特·博世有限公司 | Cap assemblies and liquid storage device including lid cap assemblies |
| CN112763467A (en) * | 2020-12-28 | 2021-05-07 | 中国科学院合肥物质科学研究院 | Underwater dissolved gas in-situ detection device and detection method thereof |
-
2012
- 2012-07-17 CN CN 201220344974 patent/CN202806741U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741983A (en) * | 2016-11-18 | 2017-05-31 | 徐丛逸 | A kind of multi-functional ventilating device for liquid storage container |
| CN106741983B (en) * | 2016-11-18 | 2023-06-20 | 徐丛逸 | Multifunctional ventilation device for liquid storage container |
| CN109383922A (en) * | 2017-08-14 | 2019-02-26 | 罗伯特·博世有限公司 | Cap assemblies and liquid storage device including lid cap assemblies |
| CN109383922B (en) * | 2017-08-14 | 2022-01-11 | 罗伯特·博世有限公司 | Cap assembly and reservoir including the same |
| CN108167639A (en) * | 2017-12-26 | 2018-06-15 | 广东万合汽车供应链管理有限公司 | A kind of air reservoir of the convenient semitrailer of damping gas storage |
| CN112763467A (en) * | 2020-12-28 | 2021-05-07 | 中国科学院合肥物质科学研究院 | Underwater dissolved gas in-situ detection device and detection method thereof |
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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: 20130320 Termination date: 20210717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |