CN202186372U - Big-channel vacuum booster with electromagnet structure for regulating sealing gap - Google Patents
Big-channel vacuum booster with electromagnet structure for regulating sealing gap Download PDFInfo
- Publication number
- CN202186372U CN202186372U CN2011202962879U CN201120296287U CN202186372U CN 202186372 U CN202186372 U CN 202186372U CN 2011202962879 U CN2011202962879 U CN 2011202962879U CN 201120296287 U CN201120296287 U CN 201120296287U CN 202186372 U CN202186372 U CN 202186372U
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- Prior art keywords
- vacuum booster
- electromagnet
- groove
- sealing
- ring
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- Expired - Lifetime
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Abstract
The utility model relates to a big-channel vacuum booster with an electromagnet structure for regulating sealing gap, which mainly solves the problems that the prior vacuum booster has bad sealing performance and big noise when the electromagnet sucks the head of the push rod of the main cylinder. A groove is arranged on the inner wall of the air flue; an annular rubber sealing cushion fitting the air flue is arranged in the groove; the annular rubber sealing cushion extrudes outwards opposite to the end surface of the push rod seat. Because the rubber sealing cushion capable of automatically resetting replaces the original metal sealing cushion, the magnet fits the sealing cushion tightly after sucking to achieve sealing, so that the noise pollution caused by the small channel and untight sealing effect when magnet sucks is avoided effectively and the vacuum leakage which influences brake function caused by the untight sealing effect is avoided.
Description
Technical field
The utility model relates to a kind of vacuum booster, refers in particular to the vacuum booster that a kind of major path is regulated the seal clearance electromagnet structure.
Background technology
Electromagnet master cylinder push rod head belongs to the inner vitals of BMBS vacuum booster; Original design-calculated electromagnet master cylinder push rod head adopts the electromagnet planar metal that the adhesive of master cylinder push rod head end metal is realized sealing, thereby closes chamber, vacuum booster front and back venting channels.Squareness, planeness and roughness to the end face of master cylinder push rod head and electromagnet are had relatively high expectations; Also exist under the adhesive effect in addition; The master cylinder push rod head contacts with the electromagnet end face to take place easily to vibrate and causes abnormal sound sound; The service life that causes reducing product is low, and the leak tightness difference is prone to cause vacuum leak during electromagnetic actuation master cylinder push rod head, influences braking function.When running at high speed tire blow-out, BMBS just can not in time realize brake automatically, thereby causes traffic accident.
The utility model content
In order to overcome deficiency and the defective in the background technology; There is poor sealing performance in the vacuum booster that the utility model provides a kind of major path to regulate the seal clearance electromagnet structure when solving the electromagnetic actuation master cylinder push rod head of existing vacuum booster and little and seal the problem of the unreliable vibration that produces because of vacuum passage.
The technical scheme of the utility model is: a kind of major path is regulated the vacuum booster of seal clearance electromagnet structure; Comprise push rod and electromagnet; The front end of said push rod is provided with the ram seat with the adhesive of electromagnetism iron phase, and described ram seat is provided with air flue, and said air flue inwall is provided with groove; Be provided with the ring-shaped rubber packing seal that matches with air flue in the said groove, said ring-shaped rubber packing seal outwards protrudes with respect to the ram seat end face.
The bottom of said groove is provided with elastic component, and said elastic component one end is connected with bottom portion of groove, and the other end is connected with the ring-shaped rubber packing seal.
The cross section of said ring-shaped rubber packing seal is stepped, comprises first step and second step, and said first step is positioned at bottom portion of groove, and said second step is positioned at the top of first step.
Said elastic component is connected with the lower surface of said second step.
Be provided with stop collar between said groove inwall and the ring-shaped rubber packing seal, said stop collar one end contacts with first step, and the other end contacts with second step and aligns with the end face of ram seat.
Said stop collar is processed by copper product.
Said elastic component is a spring.
Compared with prior art; The utlity model has following beneficial effect: be with automatically reset rubber gasket to replace original metallic seal owing to adopt; Making after the magnet adhesive closely cooperates with packing seal realizes sealing; The noise emission that produces when little and poorly sealed because of passage when thereby actv. prevents the magnet adhesive avoids the poorly sealed close vacuum leak that causes to influence brake function.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the enlarged drawing at the local A of Fig. 1 place in the utility model.
Among the figure, push rod 1, ram seat 2, air flue 3, groove 4, elastic component 5, ring-shaped rubber packing seal 6, first step 61 and second step 62, stop collar 7, electromagnet 8.
The specific embodiment
Be described further to the embodiment of accompanying drawing below the utility model:
By Fig. 1, shown in Figure 2; A kind of major path is regulated the vacuum booster of seal clearance electromagnet structure, comprises push rod 1, and the front end of said push rod 1 is provided with and electromagnet 8 ram seat 2 of adhesive mutually; Described ram seat 2 is provided with air flue 3; Said air flue 3 inwalls are provided with groove 4, and the bottom of said groove 4 is provided with elastic component 5, and said elastic component 5 upper ends are provided with the ring-shaped rubber packing seal 6 that outwards protrudes with respect to the ram seat end face.When electromagnet 8 electric back produces magnetic force adhesive ram seat 2, make magnet 8 push mutually, thereby make elastic component 5 be compressed that assurance ring-shaped rubber packing seal 6 cooperates with electromagnet 8 end face actvies with ring-shaped rubber packing seal 6.According to such scheme; Because adopting is with automatically reset rubber gasket to replace original metallic seal; Making after electromagnet 8 adhesives closely cooperates with packing seal realizes sealing; The noise emission that produces when little and poorly sealed because of passage when thereby actv. prevents electromagnet 8 adhesives avoids the poorly sealed close vacuum leak that causes to influence brake function.
By Fig. 1, shown in Figure 2, the cross section of said ring-shaped rubber packing seal 6 is stepped, comprises first step 61 and second step 62, and said first step 61 is positioned at groove 4 bottoms, and said second step 62 is positioned at the top of first step 61.Be set to the stepped product that makes and have good sealing stability, can make ring-shaped rubber packing seal 6 evenly with the end face contact seal of electromagnet 8, guarantee that failure-free seals.
By Fig. 1, shown in Figure 2, said elastic component 5 is connected with the lower surface of said second step 62, thereby guarantees that the elastic force ability pulsation-free that produces when elastic component 5 is compressed pushes ring-shaped rubber packing seal 6 and seals.
By Fig. 1, shown in Figure 2, be provided with stop collar 7 between said groove 4 inwalls and the ring-shaped rubber packing seal 6, said stop collar 7 one ends contact with first step 61, and the other end contacts with second step 62 and aligns with the end face of ram seat 2.Said stop collar 7 is processed by copper product, and stop collar 7 prevents effectively that with ring-shaped rubber packing seal 6 interference fit spring from ejecting ring-shaped rubber packing seal 6.The circumference of the spacing annular rubber gasket 6 of copper sheathing; Prevent ring-shaped rubber packing seal 6 monolateral pick up or depress cause sealing inhomogeneous; Avoid ring-shaped rubber packing seal 6 to fall into into or drop out causing vacuum seal to leak, guaranteed that effectively ring-shaped rubber packing seal 6 has excellent sealing performance.Guaranteeing correspondingly to add the diameter of big airways under ring-shaped rubber packing seal and the electromagnet 8 effective air-proof conditions, form the gaseous emission of major path, thereby help realizing that fast speed processes actv. raising braking effect, raising safety.
By Fig. 1, shown in Figure 2, said elastic component 5 is a spring.Because of this structure is provided with spring, electromagnet 8 adhesive ring-shaped rubber packing seals 6 during work, ring-shaped rubber packing seal 6 compression springs have the failure-free sealed vol thereby spring generation restoring force ejects assurance with ring-shaped rubber packing seal 6.
[0020] embodiment should not be regarded as the restriction to utility model, but any improvement of doing based on the spirit of the utility model, all should be within the protection domain of the utility model.
Claims (7)
1. a major path is regulated the vacuum booster of seal clearance electromagnet structure; Comprise push rod (1) and electromagnet (8); The front end of said push rod (1) is provided with and electromagnet (8) ram seat of adhesive (2) mutually; Described ram seat (2) is provided with air flue (3); It is characterized in that: said air flue (3) inwall is provided with groove (4), is provided with the ring-shaped rubber packing seal (6) that matches with air flue (3) in the said groove (4), and said ring-shaped rubber packing seal (6) outwards protrudes with respect to ram seat (2) end face.
2. major path according to claim 1 is regulated the vacuum booster of seal clearance electromagnet structure; The bottom that it is characterized in that said groove (4) is provided with elastic component (5); Said elastic component (5) one ends are connected with groove (4) bottom, and the other end is connected with ring-shaped rubber packing seal (6).
3. major path according to claim 1 and 2 is regulated the vacuum booster of seal clearance electromagnet structure; The cross section that it is characterized in that said ring-shaped rubber packing seal (6) is stepped; Comprise first step (61) and second step (62); Said first step (61) is positioned at groove (4) bottom, and said second step (62) is positioned at the top of first step (61).
4. major path according to claim 3 is regulated the vacuum booster of seal clearance electromagnet structure, it is characterized in that said elastic component (5) is connected with the lower surface of said second step (62).
5. major path according to claim 4 is regulated the vacuum booster of seal clearance electromagnet structure; It is characterized in that being provided with stop collar (7) between said groove (4) inwall and the ring-shaped rubber packing seal (6); Said stop collar (7) one ends contact with first step (61), and the other end contacts with second step (62) and aligns with the end face of ram seat (2).
6. major path according to claim 5 is regulated the vacuum booster of seal clearance electromagnet structure, it is characterized in that said stop collar (7) processed by copper product.
7. major path according to claim 2 is regulated the vacuum booster of seal clearance electromagnet structure, it is characterized in that said elastic component (5) is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202962879U CN202186372U (en) | 2011-08-15 | 2011-08-15 | Big-channel vacuum booster with electromagnet structure for regulating sealing gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202962879U CN202186372U (en) | 2011-08-15 | 2011-08-15 | Big-channel vacuum booster with electromagnet structure for regulating sealing gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202186372U true CN202186372U (en) | 2012-04-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202962879U Expired - Lifetime CN202186372U (en) | 2011-08-15 | 2011-08-15 | Big-channel vacuum booster with electromagnet structure for regulating sealing gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202186372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923117A (en) * | 2012-11-23 | 2013-02-13 | 武汉理工大学 | Electromagnetic brake power-assisting system of electric automobile |
-
2011
- 2011-08-15 CN CN2011202962879U patent/CN202186372U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923117A (en) * | 2012-11-23 | 2013-02-13 | 武汉理工大学 | Electromagnetic brake power-assisting system of electric automobile |
| CN102923117B (en) * | 2012-11-23 | 2015-01-21 | 武汉理工大学 | Electromagnetic brake power-assisting system of electric automobile |
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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 |
Granted publication date: 20120411 |
|
| CX01 | Expiry of patent term |