CN103241222B - Brake fluid replacing device and working method thereof - Google Patents
Brake fluid replacing device and working method thereof Download PDFInfo
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- CN103241222B CN103241222B CN201310197130.4A CN201310197130A CN103241222B CN 103241222 B CN103241222 B CN 103241222B CN 201310197130 A CN201310197130 A CN 201310197130A CN 103241222 B CN103241222 B CN 103241222B
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Abstract
The invention provides a brake fluid replacing device. The brake fluid replacing device comprises a piston cylinder body, a piston assembly, a one-way valve assembly, a communicating pipe assembly, a brake fluid barrel, a waste liquid barrel and an idler wheel, wherein the piston cylinder body uses the one-way valve assembly and the communicating pipe assembly through a piston, sucks new hydraulic drive fluid in the brake fluid barrel, and pushes the new hydraulic drive fluid into a brake fluid storage pot of a car, and simultaneously, the piston cylinder body achieves replacement of waste brake fluid by sucking the waste brake fluid in a car brake wheel cylinder through the piston and pushing the waste brake fluid into the waste liquid barrel. The brake fluid barrel and the waste liquid barrel are fixedly installed at the upper end of the piston cylinder body through supports, and the idler wheel is fixedly installed below the piston cylinder body. A working method of the brake fluid replacing device is a negative pressure suction method. The brake fluid replacing device is simple in structure and low in cost, effectively guarantees that no air enters into a brake pipeline system during the brake fluid replacing process, and therefore can not reduce brake performance of the car, facilitates judging whether a brake pipeline leaks or not, is convenient to replace and operate, and saves manpower and material resources.
Description
Technical field
The present invention relates to automobile brake fluid exchange device and replacing options, be specifically related to a kind of motor vehicle brake fluid changer and method of work thereof.
Background technology
Motor vehicle brake fluid is generally changed once for every 2 years, and air can not be made in braking liquid Renewal process to enter brake piping, in case reduce deceleration and stopping performance.The braking liquid replacing options of the usual employing of current 4 S auto shop is: first will open the lid of braking liquid fluid reservoir, one people is sitting on operator's saddle, automobile is lifted with lifting machine, another people is outside car, the tap hole of certain car side brake is received with plastic hose one, one is stretched in waste liquid barrel, brake pedal is stepped on to die by chaufeur, people outside car unclamps the clamp nut of tap hole with instrument, waste liquid in brake piping flows in waste liquid barrel by plastic hose, along with pipeline inner pressure reduces, waste liquid flow velocity slows down, now tighten described clamp nut, chaufeur releasing of brake pedal, original braking liquid in braking liquid fluid reservoir supplements and enters in brake piping, liquid level declines, in order to prevent the too low air that makes of liquid level from entering brake piping, often fall lifting machine, the outer personnel of car add brand-new hydrodynamic in fluid reservoir, then lifting automobile, repeat above step and change the braking liquid in other three car side brake pipelines.When changing the braking liquid of each car side brake pipeline, in order to ensure there are enough brakings liquid in braking liquid fluid reservoir, preventing air from entering brake piping, needing repeatedly in braking liquid fluid reservoir, to add new braking liquid, repeatedly lifting fall automobile, its process wastes time and energy.Simultaneously, because this process adds brand-new hydrodynamic and discharge waste liquid to change to the braking liquid realized in brake piping, have some waste liquids and brand-new hydrodynamic to mix and discharge, its replacing amount is relevant with effluent discharge amount, in fact effluent discharge amount is often determined by the experience of operative employee, cannot accurately measure.
Publication number is CN 201544931U, application number is 200920237230.4, name is called the Chinese patent literature of " brake fluid replacement machine ", disclose the more changing device of a kind of brake solution (being also braking liquid), it adopts high pressure that new brake hydraulic pressure is entered braking liquid fluid reservoir, unclamp the clamp nut of each drg tap hole, utilize high pressure to be extruded by the waste liquid in brake piping, realize changing braking liquid.But the material of the braking liquid fluid reservoir on automobile is generally plastics, often produces distortion, even there will be seepage under High Pressure; Be pressed into the brand-new hydrodynamic of braking liquid fluid reservoir, its flow is difficult to control, and likely occurs that braking liquid enters the phenomenon that flow is high, drg tap hole flow is low simultaneously, causes the hydraulic pressure in brake piping too high and damages the phenomenon of master brake cylinder and each brake wheel cylinder.
Summary of the invention
The object of the invention is: overcome the deficiencies in the prior art, provide that a kind of structure is simple, cost is lower, easy to operate, save manpower, can measure the braking liquid changer of braking liquid replacing amount and the method for work of this braking liquid changer in real time.
Technical scheme of the present invention is: braking liquid changer of the present invention, and its constructional feature is: comprise piston/cylinder, piston component, check valve assembly, communicating pipe assembly, braking liquid bucket, waste liquid barrel and roller;
Above-mentioned piston/cylinder is the column member with the inner chamber of hollow of sealing, to setting about piston/cylinder; Piston/cylinder comprises left side board and right side board; The left side board of piston/cylinder and the top and bottom of right side board be respectively provided with respectively 1 as valve mounting apertures left and right to through hole; The center of the right side board of piston/cylinder be provided with as pitch brace passing hole left and right to through hole;
Piston component comprises piston, pull bar and handle; Piston is socketed in the inner chamber of piston/cylinder movably, and pull bar is by being fixedly connected with piston by its left end after the pitch brace passing hole of the right side board of piston/cylinder; The right-hand member of pull bar is connected with handle;
Check valve assembly comprises the first check valve, the second check valve, the 3rd check valve and the 4th check valve; First check valve sealing is fixedly mounted in the valve mounting apertures of the upper end of the left side board of piston/cylinder, and the first check valve can only be opened to the right; Second check valve sealing is fixedly mounted in the valve mounting apertures of the lower end of the left side board of piston/cylinder, and the second check valve can only be opened left; 3rd check valve sealing is fixedly mounted in the valve mounting apertures of the upper end of the right side board of piston/cylinder, and the 3rd check valve can only be opened left; 4th check valve sealing is fixedly mounted in the valve mounting apertures of the lower end of the right side board of piston/cylinder, and the 4th check valve can only be opened to the right;
Communicating pipe, assembly comprised the first communicating pipe, the second communicating pipe, third connecting pipe and the 4th communicating pipe; Braking liquid bucket comprises bung, staving and support; Braking liquid bucket is fixedly mounted on the left of the upper end of piston/cylinder by support; The leading flank of the staving of braking liquid bucket is provided with scale mark; Liquid outlet is provided with below the left side of the staving of braking liquid bucket; Waste liquid barrel comprises bung, staving and support; Waste liquid barrel is fixedly mounted on the right side of the upper end of piston/cylinder by support; The leading flank of the staving of waste liquid barrel is provided with scale mark; The right side of the staving of waste liquid barrel is provided with inlet; Roller is provided with identical 4 of structure, and these 4 rollers are fixedly mounted on the below of piston/cylinder;
Communicating pipe assembly one end of the first communicating pipe and the left end of the second check valve of check valve assembly be sealedly and fixedly connected; One end of second communicating pipe and the right-hand member of the 3rd check valve are sealedly and fixedly connected; One end of third connecting pipe and the left end of the first check valve are sealedly and fixedly connected, and the liquid outlet of the other end of third connecting pipe and the staving of braking liquid bucket is sealedly and fixedly connected; One end of 4th communicating pipe and the right-hand member of the 4th check valve are sealedly and fixedly connected, and the inlet of the other end of the 4th communicating pipe and the staving of waste liquid barrel is sealedly and fixedly connected.
Further scheme is: the first communicating pipe, the second communicating pipe, the third connecting pipe of above-mentioned connecting pipe component and the 4th communicating pipe be plastic hose.
The method of work of above-mentioned braking liquid changer, is characterized in: adopt negative-pressure ward method, mainly comprise the following steps:
1. by the handle of piston component and push rod, piston is pushed into the leftmost side of piston/cylinder; Vacant one end of first communicating pipe is inserted in the braking liquid fluid reservoir communicated with automobile braking master cylinder; Vacant one end of second communicating pipe is fixedly connected with by the braking liquid tap hole of clip with a brake wheel cylinder of automobile;
2. in braking liquid bucket, brand-new hydrodynamic is added; Piston is pulled to make it move to the right side of piston/cylinder from the left side of piston/cylinder by handle, first check valve is opened, brand-new hydrodynamic in braking liquid bucket enters the left chamber of piston/cylinder gradually, and the air in the former right chamber of piston/cylinder is entered in waste liquid barrel gradually by the 4th check valve;
Clamp nut on the braking liquid tap hole of 3. take-off the brake wheel cylinder;
4. promoting piston by handle makes it move from the right side of piston/cylinder to the left side of piston/cylinder, second check valve is opened, brand-new hydrodynamic in piston/cylinder enters braking liquid fluid reservoir by the second check valve, and the waste liquid simultaneously in brake line of automobile is inhaled into the right chamber of piston/cylinder from the 3rd check valve;
5. pull piston to make it move from the left side of piston/cylinder to the right side of piston/cylinder by handle, the first check valve is opened, and the brand-new hydrodynamic in braking liquid bucket supplements the left chamber entering piston/cylinder; 3rd closed check valve, the 4th check valve is opened, and the useless braking liquid in the right chamber of piston/cylinder is pressed in waste liquid barrel gradually;
6. repeat abovementioned steps 4. with step 5., until this brake wheel cylinder of automobile braking liquid change complete, tighten above-mentioned clamp nut;
7. repeat abovementioned steps 1. to step 6., the braking liquid in other 3 brake wheel cylinders of automobile is changed.
The present invention has positive effect: (1) braking liquid changer of the present invention, and structure is simple, cost is lower.(2) braking liquid changer of the present invention, effectively can ensure air can not be had to enter brake pipeline system in braking liquid Renewal process, thus can not reduce automobile brake perfrmance, ensures automobile braking safety.(3) braking liquid changer of the present invention, because the brand-new hydrodynamic in press-in braking liquid fluid reservoir is with substantially equal from the useless brake fluid flow of drg tap hole sucking-off, so the electrolyte level in braking liquid fluid reservoir remains unchanged substantially, needing often to pay close attention to the electrolyte level of braking liquid fluid reservoir during without the need to changing braking liquid as 4 S auto shop and supplement braking liquid, also causing the damage of brake-press lead and related device without the need to worrying that hydraulic pressure in brake piping is too high.(4) braking liquid changer of the present invention, by observing the scale mark that braking liquid bucket and waste liquid barrel are arranged, can find out that whether the waste liquid amount of the amount of the brand-new hydrodynamic entering brake piping and outflow is substantially identical easily, thus easily can judge whether brake piping has leakage; Can judge whether the replacing amount of braking liquid reaches requirement according to brand-new hydrodynamic reduction or waste liquid recruitment simultaneously.(5) adopt braking liquid changer of the present invention to change braking liquid, only need 1 people can implement replacement operation easily outward at car, use manpower and material resources sparingly, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is composition structural representation of the present invention, also show when the present invention uses and the annexation of motor vehicle brake fluid storage tank and brake wheel cylinder in figure;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right elevation of Fig. 1;
Fig. 4 is the diagram of circuit of method of work of the present invention.
Reference numeral in above-mentioned accompanying drawing is as follows:
Piston/cylinder 1, piston component 2, piston 21, pull bar 22, handle 23, check valve assembly 3, the first check valve 31, second check valve the 32, three check valve the 33, four check valve 34, communicating pipe 42 assembly 4, first communicating pipe 41, second communicating pipe, third connecting pipe the 43, four communicating pipe 44, braking liquid bucket 5, bung 51, staving 52, scale mark 52-1, support 53, waste liquid barrel 6, bung 61, staving 62, scale mark 62-1, tap hole 62-2, support 63, roller 7;
Braking liquid fluid reservoir 8a, master brake cylinder 8b, brake wheel cylinder 8c, braking liquid tap hole 8d, clamp nut 8e, clip 8f.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
(embodiment 1)
See Fig. 1 to Fig. 3, the braking liquid changer of the present embodiment, primarily of piston/cylinder 1, piston component 2, check valve assembly 3, communicating pipe assembly 4, braking liquid bucket 5, waste liquid barrel 6 and roller 7 form.
Piston/cylinder 1 is steel part.Piston/cylinder 1 is integrally made up of the cylinder of the hollow of the left side board of circle, circular right side board and middle part.Piston/cylinder about 1 is to setting.The top and bottom of the left side board of piston/cylinder 1 be respectively provided with about one to through hole, as valve mounting apertures, and these 2 through holes are positioned on the sagittal axis of the left side board of piston/cylinder 1.The top and bottom of the right side board of piston/cylinder 1 be equally also respectively provided with about one to through hole, as valve mounting apertures, and these 2 through holes are positioned on the sagittal axis of the right side board of piston/cylinder 1.The center of the right side board of piston/cylinder 1 be provided with a circular left and right to through hole, as pitch brace passing hole.
Piston component 2 is made up of piston 21, pull bar 22 and handle 23.Piston 21 is socketed in the cylinder of the hollow of piston/cylinder 1 movably, and pull bar 22 is by being fixedly connected with piston 21 by its left end after the pitch brace passing hole of the right side board of piston/cylinder 1; The right-hand member of pull bar 22 is integrally connected with handle 23 or is fixedly connected with.Handle 23 is positioned at the outside of piston cylinder system.
Check valve assembly 3 comprises the first check valve 31, second check valve 32, the 3rd check valve 33 and the 4th check valve 34.First check valve 31 sealing is fixedly mounted in the valve mounting apertures of the upper end of the left side board of piston/cylinder 1, and the first check valve 31 can only be opened to the right, then closes left.Second check valve 32 sealing is fixedly mounted in the valve mounting apertures of the lower end of the left side board of piston/cylinder 1, and the second check valve 32 can only be opened left, then closes to the right.3rd check valve 33 sealing is fixedly mounted in the valve mounting apertures of the upper end of the right side board of piston/cylinder 1, and the 3rd check valve 33 can only be opened left, then closes to the right.4th check valve 34 sealing is fixedly mounted in the valve mounting apertures of the lower end of the right side board of piston/cylinder 1, and the 4th check valve 34 can only be opened to the right, then closes left.
Communicating pipe, assembly 4 comprised the first communicating pipe 42 communicating pipe 41, second, third connecting pipe 43 and the 4th communicating pipe 44.First communicating pipe 42 communicating pipe 41, second, the third connecting pipe 43 of connecting pipe component 4 and the 4th communicating pipe 44 be plastic hose.
Braking liquid bucket 5 forms primarily of bung 51, staving 52 and support 53.Bung 51 is arranged on the top of staving 52 movably, adds braking liquid time easy to use in staving 52.Staving 52 is the column member of hollow of upper end open, lower end closed.The front side of staving 52 is provided with the scale mark 52-1 for observing braking liquid height.Liquid outlet is provided with below the left side of staving 52.Support 53 is provided with 4.4 supports 53 are fixedly connected with by the lower end board of its upper end with staving 52.Braking liquid bucket 5 is fixedly connected with piston/cylinder 1 by the lower end of 4 supports 53, thus above the left part being fixedly mounted on active cylinder block 1.
Waste liquid barrel 6 forms primarily of bung 61, staving 62 and support 63.Bung 61 is arranged on the top of staving 62 movably.Staving 62 is the column member of hollow of upper end open, lower end closed.The front side of staving 62 is provided with the scale mark 62-1 of the useless braking liquid height for observing recovery.The below of the front side midway location of staving 62 is provided with tap hole 62-2, for releasing useless braking liquid when the useless braking liquid reclaimed in waste liquid barrel 6 is comparatively expired in use procedure.The lower right-hand side of staving 62 is provided with inlet.Support 63 is provided with 4.4 supports 63 are fixedly connected with by the lower end board of its upper end with staving 62.Waste liquid barrel 6 is fixedly connected with piston/cylinder 1 by the lower end of 4 supports 63, thus above the right part being fixedly mounted on active cylinder block 1.
Roller 7 is provided with identical 4 of structure, and these 4 rollers 7 are fixedly mounted on the below of piston/cylinder 1 and are fixedly connected with piston/cylinder 1.2 in these 4 rollers 7 are arranged on the left side of piston/cylinder 1 and divide front and back to setting; Other 2 in these 4 rollers 7 are arranged on the right side of piston/cylinder 1 and divide front and back to setting.
Communicating pipe assembly 4 one end of the first communicating pipe 41 and the left end of the second check valve 32 of check valve assembly 3 be sealedly and fixedly connected; One end of second communicating pipe 42 and the right-hand member of the 3rd check valve 33 are sealedly and fixedly connected; One end of third connecting pipe 43 and the left end of the first check valve 31 are sealedly and fixedly connected, and the liquid outlet of the other end of third connecting pipe 43 and the staving 52 of braking liquid bucket 5 is sealedly and fixedly connected; One end of 4th communicating pipe 44 and the right-hand member of the 4th check valve 44 are sealedly and fixedly connected, and the inlet of the other end of the 4th communicating pipe 44 and the staving 62 of waste liquid barrel 6 is sealedly and fixedly connected.During use, the other end (vacant one end) of the first communicating pipe 41 inserts in the braking liquid fluid reservoir 8a that communicates with automobile braking master cylinder 8b; The other end (vacant one end) of the second communicating pipe 42 is sealedly and fixedly connected by the braking liquid tap hole 8d of in 4 brake wheel cylinder 8c of clip 8f and automobile; Clamp nut 8e is for controlling the opening and closing of this tap hole 8d.
See Fig. 4, the method for work of the braking liquid changer of the present embodiment, adopts negative-pressure ward method, mainly comprises the following steps:
1. by the handle 23 of piston component 2 and push rod 22, piston 21 is pushed into the leftmost side of piston/cylinder 1; Vacant one end of first communicating pipe 41 is inserted in the braking liquid fluid reservoir 8a communicated with automobile braking master cylinder 8b; Vacant one end of second communicating pipe 42 is fixedly connected with the braking liquid tap hole 8d of a brake wheel cylinder 8c of automobile by clip 8f;
2. in braking liquid bucket 5, brand-new hydrodynamic is added; Piston 21 is pulled to make it move to the right side of piston/cylinder 1 from the left side of piston/cylinder 1 by handle 23, first check valve 31 is opened, brand-new hydrodynamic in braking liquid bucket 5 enters the left chamber of piston/cylinder 1 gradually, and the air in the former right chamber of piston/cylinder 1 enters in waste liquid barrel 6 by the 4th check valve 44 gradually;
Clamp nut 8e on the braking liquid tap hole 8d of 3. take-off the brake wheel cylinder 8c;
4. promoting piston 21 by handle 23 makes it move from the right side of piston/cylinder 1 to the left side of piston/cylinder 1, second check valve 32 is opened, brand-new hydrodynamic in piston/cylinder 1 enters braking liquid fluid reservoir 8a by the second check valve 32, and the waste liquid simultaneously in brake line of automobile is inhaled into the right chamber of piston/cylinder 1 from the 3rd check valve 33;
5. pull piston 21 to make it move from the left side of piston/cylinder 1 to the right side of piston/cylinder 1 by handle 23, the first check valve 31 is opened, and the brand-new hydrodynamic in braking liquid bucket 5 supplements the left chamber entering piston/cylinder 1; 3rd check valve 33 is closed, and the 4th check valve 34 is opened, and the useless braking liquid in the right chamber of piston/cylinder 1 is pressed in waste liquid barrel 6 gradually;
6. repeat abovementioned steps 4. with step 5., until this brake wheel cylinder 8c of automobile braking liquid change complete, tighten described clamp nut 8e;
7. repeat abovementioned steps 1. to step 6., the braking liquid in other 3 brake wheel cylinder 8c of automobile is changed.
In sum, the braking liquid changer of the present embodiment, structure is simple, cost is lower; Effectively can ensure air can not be had to enter brake pipeline system in braking liquid Renewal process, thus can not automobile brake perfrmance be reduced, ensure automobile braking safety; Because the brand-new hydrodynamic in press-in braking liquid fluid reservoir is with substantially equal from the useless brake fluid flow of drg tap hole sucking-off, so the electrolyte level in braking liquid fluid reservoir remains unchanged substantially, needing often to pay close attention to the electrolyte level of braking liquid fluid reservoir during without the need to changing braking liquid as 4 S auto shop and supplement braking liquid, also causing the damage of brake-press lead and related device without the need to worrying that hydraulic pressure in brake piping is too high; By observing the scale mark that braking liquid bucket and waste liquid barrel are arranged, can find out that whether the waste liquid amount of the amount of the brand-new hydrodynamic entering brake piping and outflow is substantially identical easily, thus easily can judge whether brake piping has leakage; Adopt braking liquid changer of the present invention to change braking liquid, only need 1 people can implement replacement operation easily outward at car, use manpower and material resources sparingly, increase work efficiency.
Above embodiment is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique without departing from the spirit and scope of the present invention; can also make various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all should be included into scope of patent protection of the present invention.
Claims (3)
1. a braking liquid changer, is characterized in that: comprise piston/cylinder (1), piston component (2), check valve assembly (3), communicating pipe assembly (4), braking liquid bucket (5), waste liquid barrel (6) and roller (7);
Described piston/cylinder (1) is the column member with the inner chamber of hollow of sealing, and piston/cylinder (1) left and right is to setting; Piston/cylinder (1) comprises left side board and right side board; The left side board of piston/cylinder (1) and the top and bottom of right side board be respectively provided with respectively 1 as valve mounting apertures left and right to through hole; The center of the right side board of piston/cylinder (1) be provided with as pitch brace passing hole left and right to through hole;
Piston component (2) comprises piston (21), pull bar (22) and handle (23); Piston (21) is socketed in the inner chamber of piston/cylinder (1) movably, and pull bar (22) is by being fixedly connected with piston (21) by its left end after the pitch brace passing hole of the right side board of piston/cylinder (1); The right-hand member of pull bar (22) is connected with handle (23);
Check valve assembly (3) comprises the first check valve (31), the second check valve (32), the 3rd check valve (33) and the 4th check valve (34); First check valve (31) sealing is fixedly mounted in the valve mounting apertures of the upper end of the left side board of piston/cylinder (1), and the first check valve (31) can only be opened to the right; Second check valve (32) sealing is fixedly mounted in the valve mounting apertures of the lower end of the left side board of piston/cylinder (1), and the second check valve (32) can only be opened left; 3rd check valve (33) sealing is fixedly mounted in the valve mounting apertures of the upper end of the right side board of piston/cylinder (1), and the 3rd check valve (33) can only be opened left; 4th check valve (34) sealing is fixedly mounted in the valve mounting apertures of the lower end of the right side board of piston/cylinder (1), and the 4th check valve (34) can only be opened to the right;
Comprise the first communicating pipe (41), the second communicating pipe (42), third connecting pipe (43) and the 4th communicating pipe (44) communicating pipe assembly (4); Braking liquid bucket (5) comprises bung (51), staving (52) and support (53); Braking liquid bucket (5) is fixedly mounted on the left of the upper end of piston/cylinder (1) by support (53); The leading flank of the staving (52) of braking liquid bucket (5) is provided with scale mark (52-1); Liquid outlet is provided with below the left side of the staving (52) of braking liquid bucket (5); Waste liquid barrel (6) comprises bung (61), staving (62) and support (63); Waste liquid barrel (6) is fixedly mounted on the right side of the upper end of piston/cylinder (1) by support (63); The leading flank of the staving (62) of waste liquid barrel (6) is provided with scale mark (62-1); The right side of the staving (62) of waste liquid barrel (6) is provided with inlet; Roller (7) is provided with identical 4 of structure, and these 4 rollers 7 are fixedly mounted on the below of piston/cylinder 1;
The left end of one end of first communicating pipe (41) of communicating pipe assembly (4) and second check valve (32) of check valve assembly (3) is sealedly and fixedly connected; One end of second communicating pipe (42) and the right-hand member of the 3rd check valve (33) are sealedly and fixedly connected; One end of third connecting pipe (43) and the left end of the first check valve (31) are sealedly and fixedly connected, and the liquid outlet of the other end of third connecting pipe (43) and the staving (52) of braking liquid bucket (5) is sealedly and fixedly connected; One end of 4th communicating pipe (44) and the right-hand member of the 4th check valve (34) are sealedly and fixedly connected, and the inlet of the other end of the 4th communicating pipe (44) and the staving (62) of waste liquid barrel (6) is sealedly and fixedly connected.
2. braking liquid changer according to claim 1, is characterized in that: the first communicating pipe (41), the second communicating pipe (42), the third connecting pipe (43) of described connecting pipe component (4) and the 4th communicating pipe (44) be plastic hose.
3. for a method of work for the braking liquid changer described in claim 1 or 2, it is characterized in that: adopt negative-pressure ward method, mainly comprise the following steps:
Piston (21) is pushed into the leftmost side of piston/cylinder (1) by the handle (23) and the pull bar (22) that 1. pass through piston component (2); Vacant one end of first communicating pipe (41) is inserted in the braking liquid fluid reservoir (8a) communicated with automobile braking master cylinder (8b); Vacant one end of second communicating pipe (42) is fixedly connected with the braking liquid tap hole (8d) of a brake wheel cylinder (8c) of automobile by clip (8f);
2. in braking liquid bucket (5), brand-new hydrodynamic is added; Piston (21) is pulled to make it move to the right side of piston/cylinder (1) from the left side of piston/cylinder (1) by handle (23), first check valve (31) is opened, brand-new hydrodynamic in braking liquid bucket (5) enters the left chamber of piston/cylinder (1) gradually, and the air in the former right chamber of piston/cylinder (1) enters in waste liquid barrel (6) by the 4th check valve (34) gradually;
Clamp nut (8e) on the braking liquid tap hole (8d) of 3. take-off the brake wheel cylinder (8c);
4. promoting piston (21) by handle (23) makes it move from the right side of piston/cylinder (1) to the left side of piston/cylinder (1), second check valve (32) is opened, brand-new hydrodynamic in piston/cylinder (1) enters braking liquid fluid reservoir (8a) by the second check valve (32), and the waste liquid simultaneously in brake line of automobile is inhaled into the right chamber of piston/cylinder (1) from the 3rd check valve (33);
5. piston (21) is pulled to make it move from the left side of piston/cylinder (1) to the right side of piston/cylinder (1) by handle (23), first check valve (31) is opened, and the brand-new hydrodynamic in braking liquid bucket (5) supplements the left chamber entering piston/cylinder (1); 3rd check valve (33) is closed, and the 4th check valve (34) is opened, and the useless braking liquid in the right chamber of piston/cylinder (1) is pressed in waste liquid barrel (6) gradually;
6. repeat abovementioned steps 4. with step 5., until this brake wheel cylinder (8c) of automobile braking liquid change complete, tighten clamp nut (8e);
7. repeat abovementioned steps 1. to step 6., the braking liquid in other 3 brake wheel cylinders (8c) of automobile is changed.
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CN201310197130.4A CN103241222B (en) | 2013-05-22 | 2013-05-22 | Brake fluid replacing device and working method thereof |
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CN201310197130.4A CN103241222B (en) | 2013-05-22 | 2013-05-22 | Brake fluid replacing device and working method thereof |
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CN106082097A (en) * | 2016-07-30 | 2016-11-09 | 成都思诺达科技有限公司 | A kind of method changing automotive brake fluid |
CN109572631B (en) * | 2018-11-30 | 2020-06-02 | 象山权友机械有限公司 | Automobile brake fluid replacing device |
CN110467143B (en) * | 2019-09-02 | 2020-11-10 | 余俊炜 | Automobile brake fluid discharging device |
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