CN106425982A - Device for restoring piston of automobile brake caliper - Google Patents
Device for restoring piston of automobile brake caliper Download PDFInfo
- Publication number
- CN106425982A CN106425982A CN201610995183.4A CN201610995183A CN106425982A CN 106425982 A CN106425982 A CN 106425982A CN 201610995183 A CN201610995183 A CN 201610995183A CN 106425982 A CN106425982 A CN 106425982A
- Authority
- CN
- China
- Prior art keywords
- piston
- push rod
- extension bar
- bulb
- head plate
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a device for restoring a piston of an automobile brake caliper. The device comprises a handle for screwing and an extension bar connected with the handle, wherein the extension bar is connected with an ejector rod through a square joint which is arranged at the end of the extension bar; the ejector rod is sleeved with a caliper baffle for supporting against the brake caliper, and the caliper baffle is in threaded connection with the ejector rod; a bulb is arranged at the end socket of one end, far from the extension bar, of the ejector rod, and is connected with a guide shaft; the guide shaft is coaxial to the ejector rod; and a piston top plate parallel to the caliper baffle is arranged on the guide shaft. The device is simple in structure, easy to operate and low in manufacture cost, and is beneficial to popularization in comparison with existing specific tools, and can fulfil restoration of brake caliper pistons of different automobile models and piston models.
Description
Technical field
The present invention relates to automotive service set field, more particularly to automobile brake system extracting tool field, specifically,
It is a kind of device for resetting for braking automobile caliper piston.
Background technology
Automobile has become as one of requisite vehicles in current people life, with carrying for people's living standard
Height, industrial drastically expand, automobile has spread all over most of family.Brake system as the of paramount importance system of automobile it
One, the traffic safety for automobile plays irreplaceable effect.Automobile brake system generally has two kinds, and one kind is disc brake, and one
It is drum brakes i.e. drum brake to plant；Convenient in braking effect and reliability, the performance of disc brake is substantially better than drum brake, so drum brakes
Progressively replaced totally by disc brake, only minority drum brake can also be found on less expensive automobile back wheel at present.
Brake system continuous attrition during driving use, needs periodic replacement, due to the work pressure of disc brake
Power is to rely on hydraulic oil offer, and during brake block in disc brake is changed, the variable thickness due to new and old brake block is caused, i.e., new brake
The thickness of piece can substantially be more than the thickness of old brake block, therefore, in the feelings not resetted by the hydraulic piston in brake callipers
Under condition, new brake block cannot normal mounting.Existing reset mode is roughly divided into two kinds：One kind is special using each vehicle
With caliper piston resetting tool resetted, relatively costly due to specific purpose tool, usually 4 S auto shop is adopted；Second
Be by carrying out discharging decompressing to the adjustment screw of wheel cylinder to brake fluid, reaching the purpose of piston reset, due to brake card
Pincerlike shape is unique and installation environment opening character is bad, easily causes brake shortage of oil or suction sky during draining is carried out
Gas, causes the problem of brake fault or failure.
Content of the invention
It is an object of the invention to provide a kind of device for resetting for braking automobile caliper piston, special for solving
Braking automobile caliper piston resetting tool high cost, the expensive problem for being unfavorable for popularizing, and using discharge brake fluid
Mode resets to be easily caused brake shortage of oil or suck air causes the problem of brake fault or failure.The present invention is according to brake
The operation principle of clamp and unique shape are designed, can be easily multiple to caliper piston in the case of brake fluid is not discharged
Position, realizes the replacing of brake block, and the present invention's is simple and reliable for structure, cheap for manufacturing cost, it is easy to promote, economical and practical.
The present invention is achieved through the following technical solutions：
A kind of device for resetting for braking automobile caliper piston, be connected including the handle for screwing and with the handle adds
Stock, the extension bar is connected with push rod by being arranged on the positive square joint of termination, be arranged with the push rod for against
The clamp baffle plate of brake callipers and clamp baffle plate is threadeded with push rod, the push rod is provided with away from one end termination of extension bar
Bulb, is connected with the axis of guide on the bulb, and the axis of guide is coaxial with the push rod, is provided with and clamp on the axis of guide
The parallel piston head plate of baffle plate.
Preferably, arrange fluted on the piston head plate, the shape of the groove and bulb is adapted.
Preferably, the bottom portion of groove is provided through the piston head plate pilot hole, the diameter of the pilot hole and institute
The diameter of the axis of guide is stated to adaptation and coordinate with shaft clearance is oriented to.
Preferably, the side outward flange of the piston head plate dorsad groove arranges circular arc chamfering, chamfer radius R and piston top
The relation of the thickness D of plate is R=1/2D.
Preferably, the bulb is made up of magnetic material.
Preferably, on any side side of the positive square joint, spacing ball is provided with.
The present invention compared with prior art, with advantages below and beneficial effect：
（1）Present configuration is simple, it is easy to operate, cheap for manufacturing cost, more conducively promotes compared with existing specific purpose tool, and
The reset of the brake callipers piston of different automobile types and piston model can be met.
（2）The present invention in the case that brake fluid and miscellaneous part are not dismantled completely by various Braking piston is entered
Row resets, it is to avoid the mode of existing excretion brake fluid carries out resetting easily and brake shortage of oil occurs or suction air causes
Brake fault or the problem of failure.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of interior four angle joints and clamp baffle plate in Fig. 1；
Fig. 3 is the top view of piston head plate in Fig. 1；
Wherein 1- handle；2- extension bar；Four angle joint in 3-；4- external screw thread；5- clamp baffle plate；6- push rod；7- bulb；8- piston
Top board；The 9- axis of guide；81- groove；82- pilot hole.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment：
In conjunction with a kind of device for resetting for braking automobile caliper piston shown in accompanying drawing 1-3, including 1 He of handle for screwing
The extension bar 2 being connected with the handle 1, the extension bar 2 is connected with push rod 6 by being arranged on the positive square joint of termination, institute
State and be arranged with push rod 6 for against the clamp baffle plate 5 of brake callipers and clamp baffle plate 5 is threadeded with push rod 6, the push rod
6 are provided with bulb 7 away from one end termination of extension bar 2, are connected with the axis of guide 9 on the bulb 7, the axis of guide 9 with described
Push rod 6 is coaxial, is provided with the piston head plate 8 parallel with clamp baffle plate 5 on the axis of guide 9.
In the present embodiment, fluted 81 on the piston head plate 8, are arranged, the groove 81 is adapted with the shape of bulb 7.
The purpose of the groove 81 being adapted with 7 shape of bulb is set on piston head plate 8 and effect is, during keeping piston reset
The formedness of the direct transmission of axial stress, it is to avoid cause push rod 6 shallow decline occur the reason for because of indivedual brake callipers profiles
When, the stress of piston head plate 8 is affected, so as to increase the stress of piston reset.
In the present embodiment, 81 bottom of the groove is provided through 8 pilot hole 82 of the piston head plate, the pilot hole 82
Diameter and the axis of guide 9 diameter to adapting to and coordinate with 9 gap of the axis of guide.Due to being lived to brake callipers using the present invention
When filling in row reset, piston head plate 8 is needed installed in piston intracavity, is arranged the axis of guide 9 and can be kept coaxial with piston head plate 8
Degree, makes piston head plate 8 apply the stress of piston more uniform, prevents stress concentration deflection from causing piston unbalance stress, reset
Difficulty is big, more even has and causes piston crooked, the possibility for causing brake fluid to be revealed.
In the present embodiment, the side outward flange of the dorsad groove 81 of the piston head plate 8 arranges circular arc chamfering, chamfer radius R
Relation with the thickness D of piston head plate 8 is R=1/2D.
In the present embodiment, the bulb 7 is made up of magnetic material.Due to using vertical more than the bottom margin in piston cavity
Arrange, the dismounting of piston head plate 8 can be more conducive to when 8 edge of piston head plate is arranged using chamfering, it is to avoid inside plunger shaft
There is corrosion, the piston head plate 8 after causing to reset clamping stagnation occurs in piston intracavity, it is impossible to the situation of taking-up.Bulb 7 is adopted magnetic
Property material be made to suction out piston head plate 8 further, improve take out piston head plate 8 easness.
Operation principle and using method：
First piston head plate 8 is placed in the piston cavity in braking automobile clamp, screws clamp baffle plate 5 and be allowed to bulb 7
One end movement, clamp baffle plate 5 is resisted against brake callipers not to be had, on the side inwall of piston, reversely to screw handle 1, make push rod
Under a side shifting from the cooperation of 6 female threads on external screw thread 4 with clamp baffle plate 5 to piston head plate 8, until the axis of guide 9 and ball
7 bear against in the pilot hole 82 and groove 81 on piston head plate 8, continue to screw handle 1, make piston in the axle of push rod 6
Continue retraction under stress until initial position is reached, after completing to reset, repercussion screws handle 1 and removes the present invention again, then pacifies again
New brake block is filled, completes installment work.
What deserves to be explained is, in order to the precision in reseting procedure is further improved, reduce reset resistance, the push rod 6
The external screw thread 4 of upper setting is that wall scroll thread helix inclination place straight line should be at 89 ° -89.5 ° with axial angle for fine thread, single
The bar width of thread should be between 0.5-0.8 millimeter, and ridge tooth depth is between 0.7-1 millimeter.The push rod 6 and extension bar 2
The termination of connection be provided with interior four angle joint 3, and the inwall of interior four angle joint 3 be provided with the extension bar 2
The limited impression that the spacing ball for arranging on positive square joint matches.
The above, be only presently preferred embodiments of the present invention, not does any pro forma restriction to the present invention, every according to
Any simple modification above example made according to the technical spirit of the present invention, equivalent variations, each fall within the protection of the present invention
Within the scope of.
Claims (5)
1. a kind of for braking automobile caliper piston reset device, it is characterised in that include the handle for screwing（1）And with
The handle（1）The extension bar of connection（2）, the extension bar（2）By being arranged on positive square joint and the push rod of termination（6）Even
Connect, the push rod（6）On be arranged with for the clamp baffle plate against brake callipers（5）And clamp baffle plate（5）With push rod（6）Screw thread
Connection, the push rod（6）Away from extension bar（2）One end termination be provided with bulb（7）, the bulb（7）On be connected with guiding
Axle（9）, the axis of guide（9）With the push rod（6）Coaxially, the axis of guide（9）On be provided with and clamp baffle plate（5）Parallel
Piston head plate（8）.
2. according to claim 1 a kind of for braking automobile caliper piston reset device, it is characterised in that the work
Plug top board（8）Upper setting is fluted（81）, the groove（81）With bulb（7）Shape be adapted.
3. according to claim 2 a kind of for braking automobile caliper piston reset device, it is characterised in that described recessed
Groove（81）Bottom is provided through the piston head plate（8）Pilot hole（82）, the pilot hole（82）Diameter and the guiding
Axle（9）Diameter to adapt to and and the axis of guide（9）Gap coordinates.
4. according to claim 3 a kind of for braking automobile caliper piston reset device, it is characterised in that the work
Plug top board（8）Dorsad groove（81）Side outward flange circular arc chamfering, chamfer radius R and piston head plate are set（8）Thickness D
Relation is R=1/2D.
5. a kind of device for resetting for braking automobile caliper piston according to any one in claim 1-4, which is special
Levy and be, the bulb（7）It is made up of magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610995183.4A CN106425982A (en) | 2016-11-11 | 2016-11-11 | Device for restoring piston of automobile brake caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610995183.4A CN106425982A (en) | 2016-11-11 | 2016-11-11 | Device for restoring piston of automobile brake caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106425982A true CN106425982A (en) | 2017-02-22 |
Family
ID=58208453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610995183.4A Pending CN106425982A (en) | 2016-11-11 | 2016-11-11 | Device for restoring piston of automobile brake caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106425982A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI642521B (en) * | 2018-05-24 | 2018-12-01 | Drum brake repair tool | |
| CN110026944A (en) * | 2019-05-21 | 2019-07-19 | 王庆荣 | A kind of dedicated spheroidal rotation clamp matched with vehicle brake cylinder return tool |
| CN110370216A (en) * | 2019-07-15 | 2019-10-25 | 广西农业职业技术学院 | A kind of Pneumatic brake wheel cylinder resetting tool |
| CN110370215A (en) * | 2019-07-15 | 2019-10-25 | 广西农业职业技术学院 | A kind of electrodynamic type wheel cylinder resetting tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269053A (en) * | 1992-09-03 | 1993-12-14 | Hicks Robert L | Compact disc brake piston retraction tool and method for retracting disc brake piston |
| US6192566B1 (en) * | 1999-12-22 | 2001-02-27 | Robert E Dunum | Brake single or dual piston pusher tool |
| CN203062687U (en) * | 2012-12-19 | 2013-07-17 | 湖南吉利汽车部件有限公司 | Braking callipers piston return compressing tool |
| CN204148844U (en) * | 2014-10-16 | 2015-02-11 | 四川川煤华荣能源股份有限公司精煤分公司 | Brake cylinder piston return boost motor |
| CN204295610U (en) * | 2014-07-14 | 2015-04-29 | 常州市龙朝标准件厂 | A kind of wheel cylinder piston pressing in tool |
| CN104760021A (en) * | 2014-07-24 | 2015-07-08 | 宋鲁江 | Adjusting tool for brake cylinder piston |
-
2016
- 2016-11-11 CN CN201610995183.4A patent/CN106425982A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269053A (en) * | 1992-09-03 | 1993-12-14 | Hicks Robert L | Compact disc brake piston retraction tool and method for retracting disc brake piston |
| US6192566B1 (en) * | 1999-12-22 | 2001-02-27 | Robert E Dunum | Brake single or dual piston pusher tool |
| CN203062687U (en) * | 2012-12-19 | 2013-07-17 | 湖南吉利汽车部件有限公司 | Braking callipers piston return compressing tool |
| CN204295610U (en) * | 2014-07-14 | 2015-04-29 | 常州市龙朝标准件厂 | A kind of wheel cylinder piston pressing in tool |
| CN104760021A (en) * | 2014-07-24 | 2015-07-08 | 宋鲁江 | Adjusting tool for brake cylinder piston |
| CN204148844U (en) * | 2014-10-16 | 2015-02-11 | 四川川煤华荣能源股份有限公司精煤分公司 | Brake cylinder piston return boost motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI642521B (en) * | 2018-05-24 | 2018-12-01 | Drum brake repair tool | |
| CN110026944A (en) * | 2019-05-21 | 2019-07-19 | 王庆荣 | A kind of dedicated spheroidal rotation clamp matched with vehicle brake cylinder return tool |
| CN110026944B (en) * | 2019-05-21 | 2023-12-19 | 王庆荣 | Special spherical rotary chuck matched with vehicle brake cylinder return tool |
| CN110370216A (en) * | 2019-07-15 | 2019-10-25 | 广西农业职业技术学院 | A kind of Pneumatic brake wheel cylinder resetting tool |
| CN110370215A (en) * | 2019-07-15 | 2019-10-25 | 广西农业职业技术学院 | A kind of electrodynamic type wheel cylinder resetting tool |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |