Locomotive brake oil changing device

Abstract

The utility model discloses a locomotive brake oil replacement device relates to the field of vehicle maintenance technology, and it is including: pumping oil subassembly and oil supplementing subassembly, pumping oil subassembly includes pumping bottle, air pump and connecting hose, and the pumping bottle is connected with the oil suction pipe, the one end of connecting hose communicates air pump air outlet, and the other end communicates pumping bottle, and oil supplementing subassembly includes oil supplementing bottle and communicating pipe, and the oil supplementing bottle is provided with the oil hole, and the one end of communicating pipe communicates the oil hole, and the other end communicates the liquid storage tank, and the pumping bottle is connected the liquid storage tank through communicating pipe with the inverting oil supplementing bottle, and the liquid outlet is immersed in the new oil, and when the liquid level of liquid storage tank drops and exposes the communicating pipe, the atmospheric pressure triggers the oil automatic flow, and after the liquid level rises and submerges the communicating pipe, the oil supplementing stops automatically, realizes the liquid level self -adaptation control, and the problem that the cost of replacing the automobile brake oil is too high and the working efficiency is low in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair technology, and more specifically to a vehicle brake fluid replacement device. Background Technology

[0002] The car's braking system is the most important system for ensuring driving safety. During braking, brake fluid transmits braking pressure, distributing the pressure generated by braking to the wheels to achieve the braking effect, thereby enabling the vehicle to decelerate or stop quickly. Brake fluid has water-absorbing properties; if it is not changed for a long time, it will corrode the braking system, posing a safety hazard.

[0003] The existing method for changing brake fluid is as follows: the operator loosens the drain plug of the brake device and continuously presses the brake pedal, causing the brake fluid to flow out from the drain hole. After the old brake fluid is drained, new brake fluid is added through the inlet of the brake fluid reservoir. After filling the reservoir, the brake pedal is pressed again. This process is repeated until the brake fluid flowing out of the drain hole is clear, thus completing the brake fluid change. This method of changing brake fluid requires the cooperation of multiple people, resulting in high labor costs and low efficiency.

[0004] Therefore, in view of the existing problems, how to provide a vehicle brake fluid replacement device that can solve the problems of high cost and low efficiency in replacing automotive brake fluid in the existing technology is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides a vehicle brake fluid replacement device that can solve the problems of high cost and low efficiency in replacing automotive brake fluid in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A locomotive brake fluid replacement device includes: an oil extraction assembly and an oil replenishment assembly; The oil extraction assembly includes an oil extraction bottle, an air pump, and a connecting hose. An oil suction tube is connected to the oil extraction bottle. One end of the connecting hose is connected to the air pump port, and the other end is connected to the oil extraction bottle. The oil replenishment assembly includes an oil replenishment bottle and a connecting pipe. The oil replenishment bottle has an oil passage hole. One end of the connecting pipe is connected to the oil passage hole, and the other end is connected to the storage tank. The pump draws waste oil from the pump into the oil extraction bottle in one direction. The inverted oil replenishment bottle is connected to the storage tank through the connecting pipe. The outlet is immersed in the new oil. When the liquid level in the storage tank drops and exposes the opening of the connecting pipe, atmospheric pressure triggers the oil to flow out automatically. After the liquid level rises back and submerges the opening of the connecting pipe, the oil replenishment automatically stops, thus achieving adaptive liquid level control.

[0007] Through the above technical solution, this utility model provides a locomotive brake fluid replacement device that dynamically links negative pressure oil extraction and gravity-fed oil replenishment, preventing air intake throughout the process. Synchronous replenishment ensures that the reservoir always has oil covering the oil inlet, completely eliminating the risk of air entering the brake master cylinder and improving braking safety. It can also achieve adaptive oil replenishment, automatically starting and stopping oil replenishment based on changes in the fluid level, eliminating the need for frequent manual observation and addition, achieving on-demand supply, avoiding overflow, and reducing costs.

[0008] Preferably, the above-mentioned locomotive brake fluid changing device further includes a fixing rope, one end of which is fixed to the oil extraction bottle, and the other end is fixed to the locomotive. This prevents the oil extraction bottle from falling and causing brake fluid to splash, contaminate the wheel hub, or come into contact with high-temperature components and catch fire.

[0009] Preferably, in the above-mentioned locomotive brake fluid replacement device, the oil extraction assembly further includes a check valve, which is fixed inside the connecting hose. Each time the vacuum pump is squeezed, a negative pressure is maintained inside the bottle, eliminating the need to repeatedly establish a vacuum, improving operational continuity, preventing waste oil from flowing back and contaminating the pump and pipeline, ensuring absolute separation of old and new oil, and preventing secondary contamination by avoiding the re-entry of extracted water and impurities into the braking system.

[0010] Preferably, in the above-mentioned locomotive brake fluid replacement device, the oil extraction assembly further includes an oil extraction interface, which is fixed to the end of the oil suction pipe away from the oil extraction bottle, and is connected to the drain port of the brake pump. The dedicated interface matches the drain port, solving the problems of easy leakage and air intake associated with traditional hose connections.

[0011] Preferably, in the above-mentioned locomotive brake fluid replacement device, the oil extraction assembly further includes a fixing component, which is fixed to the side wall of the oil extraction bottle, enabling connection with the locomotive. This allows the oil extraction bottle to be firmly attached to the brake disc, allowing the operator to focus on operating the air pump and monitoring the fluid level. It also ensures accurate positioning, ensuring the oil extraction bottle is in a low position, utilizing gravity to accelerate the outflow of waste oil.

[0012] Preferably, in the above-mentioned locomotive brake fluid replacement device, the fluid replenishment component further includes a fluid replenishment bracket, one end of which is detachably connected to the fluid replenishment bottle, and the other end is detachably connected to the locomotive. The adjustable tilt angle of the fluid replenishment bottle ensures the outlet is always submerged, guaranteeing the effectiveness of the liquid seal; it also improves spatial adaptability, accommodating different engine compartment heights and avoiding interference with the engine hood and pipelines; and it enables standardized operation, as the fixed bracket stabilizes the position of the fluid replenishment bottle and improves the consistency of the fluid replenishment flow rate.

[0013] Preferably, in the above-mentioned locomotive brake fluid replacement device, a ball valve for controlling the connection of the connecting pipe is also installed on the connecting pipe. In case of abnormal oil replenishment, it can be manually and quickly closed, with a fast response time to prevent overflow of the reservoir from corroding the paint; at the same time, during the first use, the ball valve can be opened to pre-charge the oil circuit, expel air from the connecting pipe, and improve the initial liquid seal establishment speed.

[0014] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a locomotive brake fluid replacement device, which has the following beneficial effects: 1. This invention enables efficient single-person operation and significantly reduces labor costs and time consumption. Through the linkage design of the oil extraction component and the oil replenishment component, the operator only needs to squeeze the air pump with one hand to complete the oil extraction. At the same time, the oil replenishment system automatically controls the liquid level, which completely changes the traditional method that requires one person to repeatedly step on the brake and another person to monitor the oil discharge.

[0015] 2. A fully closed-loop system eliminates the risk of air entering the braking system, fundamentally improving braking safety. Traditional methods require frequent refilling after the fluid level in the reservoir drops, easily leading to air entering the master cylinder. This device uses an inverted, gravity-fed refill bottle, automatically starting and stopping refilling based on fluid level changes, ensuring the reservoir outlet is always completely covered with fluid, forming a stable liquid seal. The entire replacement process is a closed loop, completely eliminating the risk of air bubbles entering the brake lines and ensuring the stability of pressure transmission and the reliability of the braking system's response.

[0016] 3. Adaptive liquid level control automatically maintains dynamic balance, preventing overflow and shortage. A negative feedback mechanism is formed between the immersion depth of the refill bottle outlet and the liquid level in the reservoir: when the liquid level drops and exposes the outlet, atmospheric pressure automatically triggers refilling; when the liquid level rises back to submerge the outlet, the bottle seal automatically stops. This mechanism eliminates the need for manual monitoring of the liquid level or manual switching, preventing both overfilling that could cause overflow and corrosion of the paint, and insufficient liquid that could lead to air intake, achieving precise control of supply on demand.

[0017] 4. The structure is simple and reliable, easy to install, and highly adaptable. The device adopts a modular design. The oil bottle is double-fixed by strong magnets and fixing ropes, and the oil replenishment bottle is clamped by an adjustable bracket. It can be quickly installed without any modification to the vehicle. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1The attached figure is a structural schematic diagram of an oil replenishment component provided by this utility model; Figure 2 The attached figure is a structural schematic diagram of an oil extraction assembly provided by this utility model.

[0020] in: 1-Oil suction bottle; 2-Air pump; 3-Connecting hose; 4-Oil suction pipe; 5-Oil replenishment bottle; 6-Connecting pipe; 7-Fixing rope; 8-Check valve; 9-Oil suction interface; 10-Fixing component; 11-Oil replenishment bracket; 12-Ball valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: See appendix Figure 1-2 This utility model discloses a locomotive brake fluid replacement device, including: an oil extraction assembly and an oil replenishment assembly; The oil extraction assembly includes an oil extraction bottle 1, an air pump 2, and a connecting hose 3. An oil suction pipe 4 is connected to the oil extraction bottle 1. One end of the connecting hose 3 is connected to the air extraction port of the air pump 2, and the other end is connected to the oil extraction bottle 1. The oil replenishment assembly includes an oil replenishment bottle 5 and a connecting pipe 6. The oil replenishment bottle 5 has an oil passage hole. One end of the connecting pipe 6 is connected to the oil passage hole, and the other end is connected to the storage tank. The system allows the vacuum pump 2 to draw waste oil from the pump into the oil bottle 1 in one direction. The inverted oil replenishment bottle 5 is connected to the storage tank through the connecting pipe 6. The outlet is immersed in the new oil. When the liquid level in the storage tank drops and exposes the opening of the connecting pipe 6, atmospheric pressure triggers the oil to flow out automatically. After the liquid level rises and submerges the opening of the connecting pipe 6, the oil replenishment automatically stops, thus achieving adaptive liquid level control.

[0023] In some specific examples, a fixing rope 7 is also included, with one end of the fixing rope 7 fixed to the oil pump bottle 1 and the other end fixed to the locomotive.

[0024] In some other embodiments, the oil extraction assembly also includes a check valve 8, which is fixed inside the connecting hose 3.

[0025] In a specific embodiment, the oil extraction assembly also includes an oil extraction interface 9, which is fixed at the end of the oil suction tube 4 away from the oil extraction bottle 1, and is connected to the oil discharge port of the pump.

[0026] In one specific example, the oil extraction assembly also includes a fixing member 10, which is fixed to the side wall of the oil extraction bottle 1 and can be connected to the locomotive.

[0027] Specifically, the fastener 10 can be a strong magnet.

[0028] In some examples, the refueling assembly also includes a refueling bracket 11, one end of which is detachably connected to the refueling bottle 5 and the other end is detachably connected to the locomotive.

[0029] Specifically, the end of the oil replenishment bracket 11 that is clamped on the locomotive is a crab claw clamp.

[0030] In some other embodiments, a ball valve 12 for controlling the connection of the connecting pipe is also installed on the connecting pipe 6.

[0031] The method of use and working principle of this utility model are as follows: 1. Ensure the vehicle is off and the ignition key is removed; shift into Park (P) or a neutral gear and engage the handbrake; ensure the work area is well-ventilated and away from heat sources and high-temperature components. Wear safety goggles and gloves. Brake fluid is highly corrosive and flammable; if it comes into contact with skin or paint, immediately rinse with water. Confirm that the filler bottle outlet is submerged in new fluid, the filler bottle has a check valve installed, and all lines are undamaged. 2. Open the vehicle's brake fluid reservoir cap and firmly clamp it to the edge of the reservoir opening using the crab clamp. Pour sufficient new brake fluid into the transparent filler bottle 5 and tighten the rubber stopper on the switch assembly. Invert the filler bottle 5 and clamp it onto the spring clamp filler bracket 11, adjusting the angle to ensure the outlet is completely submerged in fluid. If the fluid level is insufficient, first open the ball valve 12 to release a small amount of new fluid until the outlet is completely submerged, then close the switch. Ensure the filler line is initially full of fluid to prevent air from entering. 3. Install the evacuation system. Attach the evacuation bottle 1 to the brake disc or nearby metal parts using the strong magnet at the bottom, and reinforce it with the securing rope 7 to prevent it from falling. Apply a small amount of grease to the surface of the bleed bolt on the vehicle's brake caliper for easier disassembly. Install the evacuation connector to the bleed hole of the caliper and loosen the bleed bolt counterclockwise by about 1 / 4 turn with a wrench; do not remove it completely. 4. Operate evacuation and replenishment simultaneously. Repeatedly squeeze the handle of the manual air pump 2 to create negative pressure in the evacuation bottle 1. Under this negative pressure, the old brake fluid flows from the caliper through the bleed bolt, evacuation connector, and metal hose into the evacuation bottle. 5. Continue squeezing the air pump 2 and observe the state of the fluid in the evacuation line. When the air bubbles in the line completely disappear, the flowing fluid is clear and transparent with the color of new brake fluid, and the evacuation resistance is stable, it indicates that the old fluid in the system has been emptied and the line is filled with new brake fluid. 6. Tighten the bolt: First, tighten the bleed bolt on the caliper clockwise, then remove the evacuation connector. Wipe the drain plug and surrounding area with a paper towel to check for leaks. Turn off the filler bottle switch and remove the bracket. If the reservoir level is above the MAX line, use a siphon to remove excess fluid to the appropriate level. Replace the reservoir cap, remove all tools, and check the entire vehicle again for leaks.

[0032] Automatic oil replenishment mechanism: As the liquid level in the storage tank drops, the oil in the replenishment bottle automatically flows out to replenish the tank due to atmospheric pressure and gravity. When the liquid level once again submerges the outlet, a sealed environment is formed inside the bottle, and oil replenishment automatically stops, maintaining dynamic balance. Dynamic monitoring: During operation, the liquid level in the storage tank needs to be frequently observed. If the liquid level is too low, oil pumping must be suspended until the replenishment system replenishes the liquid to a safe level before resuming.

[0033] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A locomotive brake fluid changing device, characterized in that, include: An oil extraction assembly, comprising an oil extraction bottle (1), an air pump (2), and a connecting hose (3), wherein an oil suction tube (4) is connected to the oil extraction bottle (1); one end of the connecting hose (3) is connected to the air extraction port of the air pump (2), and the other end is connected to the oil extraction bottle (1). The oil replenishment assembly includes an oil replenishment bottle (5) and a connecting pipe (6). The oil replenishment bottle (5) has an oil passage hole. One end of the connecting pipe (6) is connected to the oil passage hole, and the other end is connected to the storage tank. The pump (2) draws waste oil from the pump into the oil bottle (1) in one direction. The inverted oil replenishment bottle (5) is connected to the storage tank through the connecting pipe (6). The outlet is immersed in the new oil. When the liquid level in the storage tank drops and exposes the opening of the connecting pipe (6), atmospheric pressure triggers the oil to flow out automatically. After the liquid level rises and submerges the opening of the connecting pipe (6), the oil replenishment stops automatically, thus realizing adaptive liquid level control.

2. The locomotive brake fluid replacement device according to claim 1, characterized in that, It also includes a fixing rope (7), one end of which is fixed to the oil pump bottle (1) and the other end is fixed to the locomotive.

3. The locomotive brake fluid replacement device according to claim 2, characterized in that, The oil extraction assembly also includes a check valve (8), which is fixed inside the connecting hose (3).

4. A locomotive brake fluid replacement device according to claim 3, characterized in that, The oil extraction assembly also includes an oil extraction port (9), which is fixed to one end of the oil suction tube (4) away from the oil extraction bottle (1) and is connected to the oil drain hole of the pump.

5. A locomotive brake fluid replacement device according to claim 4, characterized in that, The oil extraction assembly also includes a fixing member (10), which is fixed to the side wall of the oil extraction bottle (1) and can be connected to the locomotive.

6. A locomotive brake fluid replacement device according to claim 1, characterized in that, The refueling assembly also includes a refueling bracket (11), one end of which is detachably connected to the refueling bottle (5), and the other end is detachably connected to the locomotive.

7. A locomotive brake fluid replacement device according to claim 6, characterized in that, The connecting pipe (6) is also equipped with a device for controlling the connection of the connecting pipe.

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