Auxiliary tool for replacing brake oil

Abstract

The utility model provides a brake oil replacement auxiliary tool which comprises a base frame, a pneumatic mechanism arranged on the base frame and a treading part, the pneumatic mechanism comprises an air cylinder, the air cylinder comprises a cylinder rod and a driving end located at the end of the cylinder rod, and the treading part is used for making contact with a pedal of an automobile. The treading part is connected with the driving end of the end of the cylinder rod of the air cylinder, and the cylinder rod can stretch out to drive the driving end to drive the treading part to tread the pedal. According to the auxiliary tool, the number of operators can be reduced, and the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile repair, in particular to a brake oil replacement auxiliary tool. Background Art

[0002] The car's braking system includes a master brake cylinder and a slave brake cylinder. The master brake cylinder contains brake fluid, and the car's pedal is connected to the master brake cylinder. When the car's pedal is stepped on to brake, the piston of the master brake cylinder is driven to apply pressure to the brake fluid. The pressure is transmitted to the slave brake cylinder of each wheel through the brake fluid in the brake oil pipe connected to the master brake cylinder to push the piston of the slave cylinder to generate braking force.

[0003] Once the brake fluid has problems such as aging, it will affect the performance of the brakes and then affect driving safety. Therefore, the brake fluid needs to be replaced regularly. When replacing the brake fluid, the brake fluid in the brake pipe needs to be completely drained. Generally, two operators are required to do this. One operator steps on the pedal intermittently in the cab, and the other operator loosens the drain screw at a specific position of the brake cylinder outside the vehicle, observes the draining of the brake pipe, and calls out instructions to require the operator in the vehicle to step on and hold the pedal, while tightening the bolts of the brake fluid drain hole to ensure that the brake pipe is full and prevent air from mixing into the system. This makes the process of replacing the brake fluid more complicated, requiring more manpower and coordinated operations. Utility Model Content

[0004] The purpose of the present application is to provide a brake fluid replacement auxiliary tool that can reduce the number of operators and reduce replacement costs.

[0005] The brake fluid replacement auxiliary tool provided in the present application includes a base frame, a pneumatic mechanism arranged on the base frame, and a pedal component, the pneumatic mechanism includes a cylinder, the cylinder includes a cylinder rod and a driving end located at the end of the cylinder rod, the pedal component is used to contact the pedal of the car, the pedal component is connected to the driving end of the cylinder, and the cylinder rod can extend to drive the driving end to drive the pedal component to step on the pedal.

[0006] In a specific embodiment, the pedal component includes a hook and a push plate, the push plate is used to step on the pedal, the driving end is connected to the push plate, the hook is used to hook to the top of the pedal, and the hook and the push plate are rotatably connected.

[0007] In a specific embodiment, the pneumatic mechanism includes a cylinder base, which is fixed to the base; a first through hole is provided in the middle of the cylinder base, and second through holes are provided on both sides of the first through hole; the pneumatic mechanism also includes a guide rod, the cylinder rod is extended and retracted along the first through hole, and the guide rod slides along the corresponding second through hole; the guide rod and the driving end are both connected to the push plate.

[0008] In a specific embodiment, the push plate includes a push plate body and two sleeve portions located on the top of the push plate body and arranged at intervals. The pedal component also includes a rotating shaft, which is inserted into the two sleeve portions. The rotating shaft and the hook are fixedly connected or are an integrated structure.

[0009] In a specific implementation, a preset angle is provided between the push plate and the hook, and damping is provided between the rotating shaft and the sleeve portion.

[0010] In a specific embodiment, the base frame includes side panels located on both sides of the cylinder, and a tail bracket located at an end of the cylinder away from the driving end, one end of the side panels on both sides is connected to the tail bracket, and the other end is connected to the cylinder base, and the length of the tail bracket is greater than the distance between the two side panels.

[0011] In a specific embodiment, the tail bracket is an L-shaped bracket, and the L-shaped bracket includes a vertical plate and a bottom plate connected to each other.

[0012] In a specific embodiment, a rubber pad is provided at the bottom of the base plate, or a transition inclined plate is provided between the vertical plate and the base plate. When working, the transition inclined plate is supported on the floor of the car, or a rubber pad is provided on the side of the vertical plate away from the pneumatic mechanism.

[0013] In a specific embodiment, two support plates are further included, each of the support plates is connected to the bottom end of the side plate or is an integrated structure, and the pneumatic mechanism is supported and arranged on the support plates.

[0014] In a specific embodiment, a remote controller is further included, the pneumatic mechanism includes a solenoid valve for controlling the cylinder, and the remote controller is used to control the solenoid valve.

[0015] The pedal component of the brake fluid replacement auxiliary tooling in the application is used to contact the pedal of the car. When the driving end of the cylinder extends with the cylinder rod, it can drive the pedal component to step on the pedal. When the driving end retracts with the cylinder rod, the pedal component can release the pedal, so that the intermittent stepping of the pedal of the car can be achieved. When the pedal is stepped on, the brake fluid in the brake oil pipe is discharged. After multiple stepping, the brake fluid in the brake oil pipe can be emptied. When the brake fluid needs to be replaced, just put the brake fluid replacement auxiliary device in the cab of the car, use the base frame as a support, and control the cylinder extension and contraction action to achieve stepping on the pedal. The operator only needs to loosen the oil drain screw at a specific position of the brake cylinder outside the car, remotely control the brake fluid replacement auxiliary tooling to step on the pedal, and observe the oil discharge of the brake oil pipe. When the amount of brake oil discharged reaches the standard, or the old brake oil has been observed to be completely discharged and meets the standard requirements, step on it again and keep it, and tighten the bolts of the brake oil drain hole at the same time to ensure that the brake oil fills the pipeline and prevent air from mixing into the system. That is, the operator only needs to monitor the draining of the brake oil in the brake oil pipe outside the vehicle. It can be seen that with the assistance of the brake oil replacement auxiliary tooling, only one operator is needed to complete the brake oil replacement operation, which can save manpower and replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the brake fluid replacement auxiliary tooling in the embodiment of the present application;

[0017] Figure 2 for Figure 1 Schematic diagram of the brake fluid replacement auxiliary tooling from another angle;

[0018] Figure 3 for Figure 1 A top view of the auxiliary tooling for replacing the brake fluid;

[0019] Figure 4 This is a schematic diagram of the structure of the brake fluid replacement auxiliary tooling in the embodiment of the present application when it is in contact with the pedal of the vehicle, and the pedal is released at this time;

[0020] Figure 5 This is a schematic diagram of the brake fluid replacement auxiliary tooling stepping on the pedal in the embodiment of the present application;

[0021] Figure 6 for Figure 1 A magnified view of position A in the middle;

[0022] Figure 7 for Figure 1 An end view of one end of the pedal component of the brake fluid replacement auxiliary tooling;

[0023] Figure 8 for Figure 7 The left side view shows the side of the brake fluid replacement auxiliary tooling;

[0024] Fig. 9 for Figure 1 A schematic diagram of the brake fluid replacement auxiliary tool from another angle, showing the bottom;

[0025] Fig.10 for Figure 1 Bottom view of the auxiliary tooling for replacing the brake fluid;

[0026] Fig.11 This is a control schematic diagram of the brake fluid replacement auxiliary tooling in the embodiment of the present application.

[0027] Figure 1-11 The reference numerals are described as follows:

[0028] 100-base frame; 101-tail bracket; 1011-vertical plate; 1012-bottom plate; 102-side plate; 103-support plate;

[0029] 200-pneumatic mechanism; 201-cylinder; 2011-driving end; 2012-cylinder barrel; 2013-cylinder rod; 202-cylinder base; 203-guide rod; 204-solenoid valve;

[0030] 300-treadle component; 301-hook; 302-push plate; 3021-push plate body; 3022-sleeve part; 303-rotating shaft;

[0031] 400-remote control;

[0032] 001-seat; 002-pedal; 0021-tread surface; 003-floor. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Please refer to Figure 1-3 , Figure 1 This is a structural schematic diagram of the brake fluid replacement auxiliary tooling in the embodiment of the present application; Figure 2 for Figure 1 Schematic diagram of the brake fluid replacement auxiliary tooling from another angle; Figure 3 for Figure 1 Top view of the brake fluid replacement auxiliary tooling.

[0035] The brake fluid replacement auxiliary tool in this embodiment includes a base frame 100, a pneumatic mechanism 200 disposed on the base frame 100, and a pedal component 300. The pneumatic mechanism 200 includes a cylinder 201, and the cylinder 201 includes a cylinder barrel 2012 and a cylinder rod 2013 (shown in FIG. 1 ) at least partially located in the cylinder barrel 2012. Figure 5), one end of the cylinder rod 2013 is connected to the piston (not shown) in the cylinder barrel 2012, and the cylinder rod 2013 can be extended and retracted along the cylinder barrel 2012. The other end of the cylinder rod 2013 located outside the cylinder barrel 2012 is the driving end 2011. The driving end 2011 can be the end of the cylinder rod 2013, which is an integrated structure with the cylinder rod 2013, or can be separately arranged at the end of the cylinder rod 2013. The pedal component 300 is connected to the driving end 2011 of the cylinder 201, so that when the driving end 2011 moves with the extension and retraction of the cylinder rod 2013, it can drive the pedal component 300 to move in the direction away from the cylinder barrel 2012 of the cylinder 201 or close to the cylinder barrel 2012 of the cylinder 201.

[0036] To better understand the working distance of the brake fluid replacement auxiliary tool, please continue to refer to Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the structure of the brake fluid replacement auxiliary tooling in the embodiment of the present application when it is in contact with the pedal 002 of the vehicle, and at this time the pedal 002 is in a state of being released; Figure 5 This is a schematic diagram of the brake fluid replacement auxiliary tool stepping on the pedal 002 in the embodiment of the present application. Figure 4 , 5 The middle pedal part 300 is only Figure 1-3 The schematic diagram of the working principle of the middle pedal component 300 is shown in FIG.

[0037] The pedal component 300 of the brake fluid replacement auxiliary tooling is used to contact the pedal 002 of the car. When the driving end 2011 of the cylinder 201 extends with the cylinder rod 2013, the pedal component 300 can drive the pedal 002 to step on the pedal. When the driving end 2011 retracts with the cylinder rod 2013, the pedal component 300 can release the pedal 002, so that intermittent stepping on the pedal 002 of the car can be achieved. When the pedal 002 is stepped on, the brake fluid in the brake oil pipe is discharged. After multiple steppings, the brake fluid in the brake oil pipe can be emptied. When the brake fluid needs to be replaced, the brake fluid replacement auxiliary device is placed in the cab of the car, with the base frame 100 as a support, and the cylinder 201 is controlled to extend and retract to realize stepping on the pedal 002. The operator only needs to loosen the drain screw at a specific position of the brake cylinder outside the car, remotely control the brake fluid replacement auxiliary tooling to step on the pedal 002, and observe the discharge of the brake oil pipe. When the amount of brake oil discharged reaches the standard, or the old brake oil has been observed to be drained and meets the standard requirements, step on it again and keep it, and tighten the bolts of the brake oil drain hole at the same time to ensure that the brake oil fills the pipeline and prevent air from mixing into the system. It can be seen that with the assistance of the brake fluid replacement auxiliary tooling, only one operator is needed to complete the brake fluid replacement operation, which can save manpower and replacement costs.

[0038] For details, please continue to view Figure 6 and Figure 7 , Figure 6 for Figure 1 A magnified view of position A in the middle; Figure 7 for Figure 1 An end view of one end of the pedal component 300 of the brake fluid replacement auxiliary tooling.

[0039] The treading component 300 in this embodiment includes a hook 301 and a push plate 302. The push plate 302 is used to push and step on the pedal 002. The driving end 2011 of the cylinder 201 is specifically connected to the push plate 302. The driving end 2011 and the push plate 302 can be fixedly connected, so that the force transmission when the push plate 302 is pushed to step on the pedal 002 is more stable and reliable. However, the driving end 2011 and the push plate 302 can be movably connected, for example, they can also be rotatably connected. The push plate 302 can already contact the pedal 002. As long as the driving end 2011 moves with the extension of the cylinder rod 2013, a thrust can be applied to the push plate 302 to achieve the purpose of stepping on the pedal 002. The hook 301 provided on the treading component 300 is used to hook to the top of the pedal 002. The hook 301 and the push plate 302 can be rotatably connected.

[0040] In order to adapt to ergonomics and facilitate the driver to step on the pedal 002, the pedal 002 on the car usually has a certain inclination angle with the vertical direction, such as Figure 4 As shown, the tread surface 0021 of the pedal 002 has an inclination relative to the vertical and horizontal directions. Figure 4 , 5 , the pedal 002 will also rotate during the pedaling stroke. Thus, when the push plate 302 of the pedal component 300 pushes the pedal 002 to be stepped on, the push plate 302 and the pedal 002 may move relative to each other and affect the pedaling effect. For this reason, the pedal component 300 is also provided with a hook 301 to hook onto the top of the pedal 002. Thus, it can be ensured that the push plate 302 will not deviate or disengage from the pedal 002 due to the movement of the pedal 002 during the process of pushing and stepping on the pedal 002, thereby ensuring the pedaling effect. Moreover, the push plate 302 and the driving end 2011 of the cylinder 201 are synchronously extended and retracted, and the hook 301 and the push plate 302 are rotatably connected. Thus, the hook 301 can maintain a relatively stable positional relationship with the pedal 002 and rotate with the rotation of the pedal 002 to avoid the push plate 302 interfering with the rotation of the pedal 002. The size of the hook body of the hook 301 can be designed according to the thickness of the pedal 002 to ensure the reliability of the hook. Due to design requirements, the thickness of the pedal 002 of different models does not vary much, so the hook 301 has strong versatility. Of course, different types of hooks 301 can also be designed according to different types of cars. The hook 301 and the push plate 302 can be detachably connected, so the hook 301 can be replaced according to the needs of the model.

[0041] Of course, the pedal component 300 is not limited to such a configuration. For example, the hook 301 may not be provided, and the push plate 302 itself may be provided with claws for gripping the side of the pedal 002, or the push plate 302 may be provided with a larger area so that it can always contact the pedal 002 during the movement of the pedal 002. The method of providing the hook 301 here has the advantages of simple and reliable structure.

[0042] Combination Figure 1 , 6 It is understood that the pneumatic mechanism 200 in this embodiment includes a cylinder base 202, which is fixed to the base frame 100. Figure 3 The U-shaped block structure shown, one end of the cylinder barrel 2012 is located in the open groove of the U-shaped block structure, the middle part of the cylinder base 202 is provided with a first through hole, and the cylinder base 202 is also provided with second through holes on both sides of the first through hole. The pneumatic mechanism 200 also includes a guide rod 203, the end of the cylinder rod 2013 of the cylinder 201 is connected to the driving end 2011, the cylinder rod 2013 passes through the first through hole, can be extended and retracted along the first through hole, and the guide rod 203 slides along the corresponding second through hole; the guide rod 203 is located on both sides of the cylinder 201, and the guide rod 203 and the driving end 2011 of the cylinder 201 are both connected to the push plate 302. It can be seen that the cylinder base 202 provides support and guidance for the extension and retraction of the cylinder 201, and the setting of the guide rod 203 can further improve the guiding effect, ensure the stability of the extension and retraction of the cylinder rod 2013 of the cylinder 201, and correspondingly ensure the stability of the push plate 302, which can also improve the stability of stepping on the pedal 002. The connection method of the guide rod 203, the driving end 2011 and the push plate 302 is not limited, and can be welding connection, or connected and fixed by fasteners such as bolts, etc.

[0043] like Figure 6As shown, the push plate 302 in this embodiment includes a push plate body 3021 and two sleeve parts 3022 located at the top of the push plate body 3021 and arranged at intervals. The sleeve part 3022 and the push plate body 3021 can be an integral structure, for example, the middle part of the upper end of the plate of the push plate 302 is cut and then wound to form two sleeve parts 3022 distributed at intervals. The sleeve part 3022 and the push plate body 3021 can also be set separately, and then fastened or welded to the push plate body 3021 by fasteners. At this time, the pedal component 300 also includes a rotating shaft 303, the two ends of the rotating shaft 303 are inserted into the two sleeve parts 3022, and the middle part of the rotating shaft 303 is fixedly connected to the hook 301 or is an integral structure, so that the rotation connection between the hook 301 and the push plate 302 can be reliably realized, and the rotation axis of the rotating shaft 303 can be set horizontally and perpendicular to the telescopic direction of the cylinder rod 2013. The rotating shaft 303 and the hook 301 are fixedly connected in such a manner that, for example, a connecting plate is provided in the middle of the rotating shaft 303, and the hook 301 and the connecting plate are connected by fasteners such as bolts. In this way, the rotating shaft 303 can be pre-connected with the push plate 302, and then the hook 301 is connected to the rotating shaft 303 for easy assembly.

[0044] Please look again Figure 8 , Figure 8 for Figure 7 The left view shows the side of the brake fluid replacement auxiliary tooling.

[0045] In this embodiment, there is an angle between the push plate 302 and the hook 301. As mentioned above, the pedal 002 has a certain height, and the tread surface 0021 has a certain angle with the vertical and horizontal directions. The angle will change during the pedal stroke, and the push plate 302 is directly connected to the driving end 2011 of the cylinder 201, and it is not easy to always maintain a matching angle with the tread surface 0021 of the pedal 002. At this time, the push plate 302 can be set to have a preset angle α with the hook 301. The push plate 302 extends roughly vertically when not in use, and the hook 301 is tilted. The preset angle α The angle α can be roughly equal to the angle between the pedal surface 0021 and the horizontal direction when the pedal 002 is in a released state. In this way, the hook 301 and the pedal 002 maintain matching inclination angles. The hook 301 includes a base portion 3012 and a hook body 3011 located at the top of the base portion 3012. After the hook body 3011 is hooked on the top of the pedal 002, the base portion 3012 of the hook 301 can be attached to the tread surface 0021 of the pedal 002 and maintain reliable contact with the pedal 002. The push plate 302 only needs to push the part of the tread surface 0021 of the pedal 002 close to the lower end.

[0046] At this time, the shaft 303 connecting the hook 301 and the push plate 302 can be provided with damping between the sleeve part 3022, so that the hook 301 can be relatively stably maintained at the preset angle α position. When in use, the operator can directly put the hook 301 on the top of the pedal 002, without manually adjusting the angle position of the hook 301, thereby improving the convenience of use. Because the inclination angle of the tread surface 0021 of the pedal 002 relative to the vertical and horizontal directions has design requirements, and the angle range is relatively determined, so after the angle α between the push plate 302 and the hook 301 is designed and determined, it can basically meet the installation requirements of most vehicle models. When the vehicle model changes, it does not need to be adjusted. Moreover, the hook 301 and the push plate 302 are rotatably connected. Although damping is provided, it only maintains the angle α position when there is no external force, which is convenient for assembly and reduces the swing during carrying and transportation. However, when subjected to external force, its angle range can still be adjusted, and it is flexible to use.

[0047] like Figure 4 , 5 As shown, during the use of the brake oil replacement auxiliary tooling, when the cylinder rod 2013 extends so that its driving end 2011 drives the push plate 302 to push and step on the pedal 002, the pedal 002 will correspondingly give the brake oil replacement auxiliary tooling a reverse force. A seat 001 is provided in the driving room of the car, and the seat 001 can generally be adjusted forward and backward. Then, the tail of the base frame 100 (the end away from the driving end 2011) can be pressed against the front side 0011 of the seat 001. In this way, when the brake oil replacement auxiliary tooling is subjected to the reaction force from the pedal 002 in the backward direction, the brake oil replacement auxiliary tooling cannot move backward under the abutment of the seat 001, and the pedal 002 can be pushed and stepped on stably. The seat 001 of the car can generally be moved forward and backward according to the needs of the driver. Then, according to the pushing needs of the brake oil replacement auxiliary tooling, the position of the seat 001 can be adjusted so that it can support the base frame 100 of the brake oil replacement auxiliary tooling.

[0048] Please continue to refer to Figure 1 , and combined with Fig. 9 , 10 understand, Fig. 9 for Figure 1 A schematic diagram of the brake fluid replacement auxiliary tool from another angle, showing the bottom; Fig.10 for Figure 1 Bottom view of the brake fluid replacement auxiliary tooling.

[0049] The base frame 100 in this embodiment includes side panels 102 located on both sides of the cylinder 201, and a tail bracket 101 located at the end of the cylinder 201 away from the driving end 2011. One end of the side panels 102 on both sides is connected to the tail bracket 101, and the other end is connected to the cylinder base 202. The length of the tail bracket 101 is greater than the distance between the two side panels 102. Define that the extension and retraction direction of the cylinder rod 2013 of the cylinder 201 is the length direction, and the spacing between the two side plates 102 is the width direction spacing, then the size of the rear bracket 101 in the width direction is set to be wider, and the rear bracket 101 is set to be relatively wide. As mentioned above, the rear end of the base frame 100 needs to rest against the front side 0011 of the seat 001. Setting the rear bracket 101 wider is conducive to improving the supporting force, increasing the friction with the floor 003 of the car or increasing the abutment strength with the seat 001, so as to prevent the brake oil replacement auxiliary tooling from retreating under the reaction force of the pedal 002, thereby ensuring the effective stepping on the pedal 002.

[0050] Specifically, Fig. 9 As shown, in this embodiment, the tail bracket 101 is an L-shaped bracket, which includes a vertical plate 101 and a bottom plate 1012 connected to each other. The L-shaped bracket has good strength to serve as a base to prevent the impact of reaction force, and has a simple structure and low manufacturing cost.

[0051] At this time, a rubber pad can be provided on the side of the vertical plate 1011 of the rear bracket 101 away from the pneumatic mechanism 200 to avoid abrasion to the seat 001. It should be understood that in the case where the rear bracket 101 cannot contact the seat 001 but is pressed against the seat 001, as mentioned above, the friction between the rear bracket 101 itself and the car floor 003 can also play a role in supporting and resisting the reaction force of the pedal 002, thereby ensuring the smooth operation of the brake fluid replacement auxiliary tooling. In this way, the length design requirements for the base frame 100 can be further lowered, which is conducive to the miniaturization design of the brake fluid replacement auxiliary tooling.

[0052] Furthermore, a rubber pad may be provided at the bottom of the bottom plate 1012 of the rear bracket 101. As mentioned above, if the rear bracket 101 generates friction with the floor 003 to resist the reaction force of the pedal 002, the rubber pad may contact the floor 003 of the car to increase friction, further prevent the brake fluid replacement auxiliary tooling from retreating, and reduce the impact on the floor 003 of the car. Figure 4 , 5It is understood that the pedal 002 has a certain height. When the brake fluid replacement auxiliary tool is in use, the base frame 100 and the pneumatic mechanism 200 may be tilted from the horizontal direction. In this case, a transition inclined plate may be provided between the vertical plate 1011 and the bottom plate 1012. When working, after the bottom plate 1012 tilts away from the bottom surface, it is supported on the floor 003 of the car by the transition inclined plate, thereby increasing the contact area with the floor 003 and improving the friction. Similarly, a rubber pad may also be provided on the transition inclined plate.

[0053] like Fig. 9 , 10 As shown, the base frame 100 also includes two support plates 103, each support plate 103 is connected to the bottom end of the side plate 102 or is an integrated structure, that is, both sides of the base frame 100 are also L-shaped brackets, with a simple structure and low cost. At this time, the pneumatic mechanism 200 can be supported and set on the support plate 103, and the cylinder barrel 2012 and cylinder base 202 of the pneumatic mechanism 200 can be fixed to the support plate 103, for example, by welding or detachably connected to the support plate 103 by fasteners such as bolts. Fig.10 As shown, the bottom of the base frame 100 also has a hollow position, and the two support plates 103 have a spacing in the width direction to form a hollow. Under the premise of supporting and fixing the pneumatic mechanism 200, the weight can also be reduced, which is conducive to the brake oil replacement auxiliary tooling during the working process. Figure 4 , 5 As shown, the pedal 002 is pushed and stepped on upwardly. Of course, the base frame 100 can also be other structural forms, and can also be set to a higher height. In this case, the base frame 100 does not need to be tilted, and the driving end 2011 of the cylinder 201 can also drive the push plate 302 to push the pedal 002. However, the base frame 100 in this embodiment has a relatively low height, a simpler structure, a relatively light weight, and is easy to carry, transport and store.

[0054] like Fig.11 As shown, Fig.11 This is a control schematic diagram of the brake fluid replacement auxiliary tooling in the embodiment of the present application.

[0055] The brake oil replacement auxiliary tooling in this embodiment also includes a remote controller 400. The pneumatic mechanism 200 includes a solenoid valve 204 for controlling the cylinder 201. The solenoid valve 204 is used to control the on-off of the air path between the air pump and the cylinder 201 to control the extension and contraction of the cylinder rod 2013. The air pump can be a part of the brake oil replacement auxiliary tooling, or it can be an air pump provided by a place such as a car repair shop where the brake oil is replaced. The remote controller 400 is used to control the solenoid valve 204. The structural form of the remote controller 400 is not limited, and a handheld remote controller, a pedal remote controller, etc. can be used. The remote controller 400 is connected to the solenoid valve 204 through a wireless signal so that the operator can remotely control the solenoid valve 204. When the operator is performing the brake oil pipe emptying operation, the remote controller 400 can be controlled to step on the pedal 002 to achieve one-person operation of replacing the brake oil.

[0056] Specifically, when replacing the brake oil, the operator can place the above-mentioned brake oil replacement auxiliary tooling in the cab of the car, so that the treading component 300 and the pedal 002 are in contact, specifically, the hook 301 of the treading component 300 is hooked on the top of the pedal 002, and the seat 001 can be adjusted, and the rear bracket 101 of the base frame 100 is pressed against the front side 0011 of the seat 001, and the brake oil replacement auxiliary tooling is ready. Then, it is only necessary to loosen the oil drain screw at a specific position of the brake cylinder outside the vehicle, and control the pneumatic mechanism 200 to work through the remote control 400, so that the cylinder rod 2013 of the cylinder 201 reciprocates, and accordingly, the driving end 2011 of the cylinder 201 will drive the push plate 302 to step on the pedal 002 multiple times, thereby causing the brake oil to be continuously discharged from the brake oil pipe. The operator continues to drain the brake oil pipe and observes the draining of the brake oil pipe until the amount of brake oil discharged reaches the standard, or the old brake oil is observed to be drained until it is empty and meets the standard requirements, and then steps on the pedal again and holds it, while tightening the bolts of the brake oil drain hole to ensure that the brake oil fills the pipe and prevents air from mixing into the system. The control of this brake oil replacement tool is simple and reliable. The operator can control the stepping of pedal 002 in real time according to the draining situation, which saves manpower and makes the replacement process reliable and controllable.

[0057] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A brake fluid replacement auxiliary tool, characterized in that: It includes a base frame, a pneumatic mechanism arranged on the base frame, and a pedal component, the pneumatic mechanism includes a cylinder, the cylinder includes a cylinder rod and a driving end located at the end of the cylinder rod, the pedal component is used to contact the pedal of the car, the pedal component is connected to the driving end of the cylinder, the cylinder rod can extend to drive the driving end to drive the pedal component to step on the pedal.

2. The brake fluid replacement auxiliary tool according to claim 1, characterized in that: The pedal component includes a hook and a push plate, the push plate is used to step on the pedal, the driving end is connected to the push plate, the hook is used to hook to the top of the pedal, and the hook and the push plate are rotatably connected.

3. The brake fluid replacement auxiliary tool according to claim 2, characterized in that: The pneumatic mechanism includes a cylinder base, which is fixed to the base frame; a first through hole is provided in the middle of the cylinder base, and second through holes are provided on both sides of the first through hole; the pneumatic mechanism also includes a guide rod, the cylinder rod is retracted along the first through hole, and the guide rod slides along the corresponding second through hole; the guide rod and the driving end are both connected to the push plate.

4. The brake fluid replacement auxiliary tool according to claim 3, characterized in that: The push plate includes a push plate body and two sleeve parts located on the top of the push plate body and arranged at intervals. The pedal component also includes a rotating shaft, which is inserted into the two sleeve parts. The rotating shaft and the hook are fixedly connected or are an integrated structure.

5. The brake fluid replacement auxiliary tool according to claim 4, characterized in that: A preset angle is formed between the push plate and the hook, and damping is arranged between the rotating shaft and the sleeve portion.

6. The brake fluid replacement auxiliary tool according to any one of claims 3 to 5, characterized in that: The base frame includes side plates located on both sides of the cylinder, and a tail bracket located at an end of the cylinder away from the driving end, one end of the side plates on both sides is connected to the tail bracket, and the other end is connected to the cylinder base, and the length of the tail bracket is greater than the distance between the two side plates.

7. The brake fluid replacement auxiliary tool according to claim 6, characterized in that: The tail bracket is an L-shaped bracket, and the L-shaped bracket includes a vertical plate and a bottom plate connected to each other.

8. The brake fluid replacement auxiliary tool according to claim 7, characterized in that: A rubber pad is arranged at the bottom of the bottom plate, or a transition inclined plate is arranged between the vertical plate and the bottom plate, and when working, the transition inclined plate is supported on the floor of the car, or a rubber pad is arranged on the side of the vertical plate away from the pneumatic mechanism.

9. The brake fluid replacement auxiliary tool according to claim 7, characterized in that: It also includes two support plates, each of which is connected to the bottom end of the side plate or is an integrated structure, and the pneumatic mechanism is supported and arranged on the support plates.

10. The brake fluid replacement auxiliary tool according to any one of claims 1 to 5, characterized in that: It also includes a remote controller, the pneumatic mechanism includes an electromagnetic valve for controlling the cylinder, and the remote controller is used to control the electromagnetic valve.

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