CN103112446B - Drag pump - Google Patents
Drag pump Download PDFInfo
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- CN103112446B CN103112446B CN201310044222.9A CN201310044222A CN103112446B CN 103112446 B CN103112446 B CN 103112446B CN 201310044222 A CN201310044222 A CN 201310044222A CN 103112446 B CN103112446 B CN 103112446B
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- drag pump
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Abstract
The present invention relates to technical field of automobile, particularly a kind of drag pump on automobile brake system, compared with prior art, this drag pump comprises first piston body, second piston body and the first valve body and the second valve body, first piston body is provided with piston rod, piston and piston barrel, second piston body is provided with the second piston, it is the first valve body between first piston body and the second piston body, first valve body serves as the piston rod of the second piston body, first piston shell and the second piston is respectively equipped with at first piston body and the second piston body, second piston serves as the piston barrel of the second piston body, the up-and-down movement of two piston bodies is adopted to realize braking, its great advantage is that structure is simple, use safety, tooling cost is low, there is result of use good, Stability Analysis of Structures, the advantage such as not fragile.
Description
Technical field
The present invention relates to technical field of automobile, particularly a kind of drag pump on automobile brake system.
Background technology
Present carriers etc. all need to use master cylinder, master cylinder is connected with trampling to pull with the brake clamp of automobile, the action of master cylinder is driven by trampling the action of pulling, the action of master cylinder promotes the action of brake clamp, brake clamp carries out compression to carry out braking action to the Friction disk be located on wheel hub and brake disc, the quality of master cylinder directly affects the effect of brake and the impact on wheel hub, and the parts overweighted most in master cylinder are piston undoubtedly.Drag pump of the prior art, all adopt connecting rod braking, connecting rod promotes piston up-and-down movement in pump, and notice air pressure produces braking effect, but adopts the piston structure of this structure complicated, and high to part processing precision, causes manufacturing cost high.
Summary of the invention
Defect existing for solution prior art drag pump and problem, provide the drag pump that a kind of structure is simple, result of use is good.
The technical scheme that the present invention adopts for its technical matters of solution is: drag pump of the present invention comprises first piston body, second piston body and the first valve body and the second valve body, first piston body is provided with piston rod, piston and piston barrel, second piston body is provided with the second piston, it is the first valve body between first piston body and the second piston body, first valve body serves as the piston rod of the second piston body, first piston shell and the second piston is respectively equipped with at described first piston body and the second piston body, the second described piston serves as the piston barrel of the second piston body.
Connect a upper cover in described first piston body upper end, be provided with a screw rod in upper cover, at stopper rod upper end surface cover one piston bush of first piston body, described screw top is on piston bush.
The first described valve body is arranged on first piston body lower end, it retracing spring comprising valve and valve seat and be arranged between valve and valve seat, the described piston barrel heading on first piston body in valve upper end, described valve seat is pressed in the upper end of the second piston of the second piston body.
The retracing spring that the second described valve body also comprises valve and valve seat and is arranged between valve and valve seat, described valve upper end heads on the second piston lower surface of the second piston body, described valve seat is limited to the tail end of the second piston by a jump ring, relief hole is provided with at the end of valve seat, and at relief hole top plug one blowdown valve.
Described first piston body and the first valve body are all arranged in first piston shell, first piston shell is provided with turnover connection for bbreather pipe, the second described piston body and the second valve body are all arranged in the second piston, and the second piston is provided with turnover connection for bbreather pipe.
The invention has the beneficial effects as follows: compared with prior art, drag pump of the present invention adopts the up-and-down movement of two piston bodies to realize braking, and its great advantage is that structure is simple, use safety, tooling cost is low, there is result of use good, Stability Analysis of Structures, the advantage such as not fragile.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, drag pump of the present invention is described further.
Fig. 1 is drag pump structure schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, drag pump of the present invention comprises upper cover body 10, first piston body 20, second piston body 30, first valve body 40 and the second valve body 50, upper cover body 10 is arranged on first piston body 20 upper end, first valve body 40 is connected to first piston body 20 and the second piston body 30, second valve body 50 is arranged at the second piston body 30 lower end.
As shown in Figure 1, upper cover body 10 comprises a upper cover 11, establishes a screw rod 12 in upper cover 11, screw rod 12 overcoat one rubber coating 13, screw rod 12 upper surface connects brake pedal plate (not shown), after stepping on brake pedal plate, namely, in brake process, screw rod 12 moves downward.
As shown in Figure 1, first piston body 20 is arranged in first piston shell 21, upper cover 11 is connected with first piston shell 21 and coordinates, first piston body 20 includes piston rod 22, piston 23 and piston barrel 24, piston barrel 24 is enclosed within the cavity in first piston shell 21, piston 23 times side pressure one springs 25, piston 23 is enclosed within piston rod 22, a piston bush 26 is overlapped in piston rod 22 upper end, the screw rod 12 of upper cover body 10 withstands on piston bush 26, and press against piston rod 22 and move downward, first piston shell 21 is provided with turnover connection for bbreather pipe 27.
As shown in Figure 1, first valve body 40 is also arranged in first piston shell 21, the retracing spring 43 that first valve body 40 comprises valve 41 and valve seat 42 and is arranged between valve 41 and valve seat 42, valve 41 upper end heads on the piston barrel 24 of first piston body 20, and valve seat 42 then matches with the second piston body 30.
As shown in Figure 1, second piston body 30 is arranged in the second piston 31, second piston body 30 comprises second piston 32, second piston 32 adopts an integral design, second piston 32 is enclosed within the second piston 31 inner chamber, second piston 31 in fact act as the second piston barrel and uses, second piston 32 upper end heads on the valve seat 42 of the first valve body 40, whole first valve body 40 in fact act as the second piston rod and uses, whole first valve body 40 promotes second piston 32 and carries out up-and-down movement, second piston 31 is also provided with turnover connection for bbreather pipe 33.
As shown in Figure 1, second valve body 50 is also arranged in the second piston 31, the retracing spring 53 that second valve body 50 also comprises valve 51 and valve seat 52 and is arranged between valve 51 and valve seat 52, valve 51 upper end of the second valve body 50 heads on the second piston 32 lower surface of the second piston body 30, valve seat 52 is limited to the tail end of the second piston 31 by a jump ring 53, relief hole 54 is provided with at the end of valve seat 52, and at relief hole 54 top plug one blowdown valve 55.
As shown in Figure 1, upper cover 11 is fixedly connected first piston shell 21, and first piston shell 21 is then fixedly connected the second piston 31.The piston rod 22 that screw rod 12 in upper cover 11 heads on first piston body 20 moves downward, first piston body 20 promotes the first valve body 40 action, first valve body 40 is connected to first piston body 20 and the second piston body 30, the piston rod that first valve body 40 act as the second piston body 30 uses, the piston barrel that second piston 31 then act as the second piston body 30 uses, and the second piston body 30 carries out piston movement under the promotion of the first valve body 40.In the piston movement up and down of first piston body 20 and the second piston body 30, the turnover connection for bbreather pipe 27 on first piston shell 21 and the turnover connection for bbreather pipe 33 on the second piston 31 carry out turnover gas, thus reach the effect of brake.
By above-mentioned known, drag pump of the present invention adopts the up-and-down movement of two piston bodies to realize braking, and its great advantage is that structure is simple, use safety, the advantages such as tooling cost is low, has result of use good, Stability Analysis of Structures, not fragile.
The nonrestrictive description according to embodiments of the invention describing the present invention property, but should be understood that when not departing from relevant scope defined by the claims, those skilled in the art can make and changing and/or amendment.
Claims (5)
1. drag pump, it is characterized in that, comprise first piston body, the second piston body and the first valve body and the second valve body, first piston body is provided with piston rod, piston and piston barrel, second piston body is provided with the second piston, it is the first valve body between first piston body and the second piston body, first valve body serves as the piston rod of the second piston body, be respectively equipped with first piston shell and the second piston at described first piston body and the second piston body, the second described piston serves as the piston barrel of the second piston body.
2. drag pump according to claim 1, is characterized in that, connects a upper cover, be provided with a screw rod in upper cover in described first piston body upper end, and at stopper rod upper end surface cover one piston bush of first piston body, described screw top is on piston bush.
3. drag pump according to claim 1 and 2, it is characterized in that, the first described valve body is arranged on first piston body lower end, it retracing spring comprising valve and valve seat and be arranged between valve and valve seat, the described piston barrel heading on first piston body in valve upper end, described valve seat is pressed in the upper end of the second piston of the second piston body.
4. drag pump according to claim 1, it is characterized in that, the retracing spring that the second described valve body also comprises valve and valve seat and is arranged between valve and valve seat, described valve upper end heads on the second piston lower surface of the second piston body, described valve seat is limited to the tail end of the second piston by a jump ring, relief hole is provided with at the end of valve seat, and at relief hole top plug one blowdown valve.
5. drag pump according to claim 1, it is characterized in that, described first piston body and the first valve body are all arranged in first piston shell, first piston shell is provided with turnover connection for bbreather pipe, the second described piston body and the second valve body are all arranged in the second piston, and the second piston is provided with turnover connection for bbreather pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044222.9A CN103112446B (en) | 2013-02-02 | 2013-02-02 | Drag pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044222.9A CN103112446B (en) | 2013-02-02 | 2013-02-02 | Drag pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103112446A CN103112446A (en) | 2013-05-22 |
| CN103112446B true CN103112446B (en) | 2015-12-09 |
Family
ID=48410851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310044222.9A Active CN103112446B (en) | 2013-02-02 | 2013-02-02 | Drag pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103112446B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370513A (en) * | 2016-09-14 | 2017-02-01 | 河南平高电气股份有限公司 | Connecting device for detecting torsion |
| CN111674376B (en) * | 2020-07-15 | 2024-07-12 | 漳浦县伟发汽车配件制造有限公司 | Brake master cylinder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529798Y (en) * | 2002-03-28 | 2003-01-08 | 张应彪 | Dual-chamber overlapped tandem automotive brake general pump |
| CN200951762Y (en) * | 2006-09-22 | 2007-09-26 | 田青锋 | Dual cavity parallel type electromagnetic controlling secondary pressurizing automobile brake general pump |
| CN201745569U (en) * | 2010-05-21 | 2011-02-16 | 王绿阳 | Soft type brake master cylinder |
| CN202279102U (en) * | 2011-10-19 | 2012-06-20 | 周旭斌 | Convenient-to-operate-and-control automobile brake master pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001146156A (en) * | 1999-11-19 | 2001-05-29 | Saitama Kiki Kk | Master cylinder and oil charging method therefor |
-
2013
- 2013-02-02 CN CN201310044222.9A patent/CN103112446B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529798Y (en) * | 2002-03-28 | 2003-01-08 | 张应彪 | Dual-chamber overlapped tandem automotive brake general pump |
| CN200951762Y (en) * | 2006-09-22 | 2007-09-26 | 田青锋 | Dual cavity parallel type electromagnetic controlling secondary pressurizing automobile brake general pump |
| CN201745569U (en) * | 2010-05-21 | 2011-02-16 | 王绿阳 | Soft type brake master cylinder |
| CN202279102U (en) * | 2011-10-19 | 2012-06-20 | 周旭斌 | Convenient-to-operate-and-control automobile brake master pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103112446A (en) | 2013-05-22 |
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