A hydraulic medium filling device for a hydraulic system
By designing a hydraulic system for adding hydraulic medium, and utilizing components such as a vacuum pump and a negative pressure collection bottle, efficient exhaust is achieved during motorcycle ABS testing. This solves the problem of low efficiency in manual operation, and improves testing accuracy and equipment portability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MINCHI INTELLIGENT CONTROL (SHANGHAI) AUTOMOTIVE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-16
Smart Images

Figure CN224364174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motorcycle ABS testing technology, and in particular to a hydraulic system hydraulic medium filling device. Background Technology
[0002] In motorcycle performance testing and maintenance, the normal operation of the ABS system is directly related to driving safety. One of the key aspects of ensuring the reliability of ABS test data is the bleeding operation of the braking system. The core objective of this operation is to completely remove residual air from the system, because even the presence of a tiny amount of air bubbles can lead to delayed brake pressure transmission, reduced braking efficiency, and consequently affect the dynamic response accuracy of the ABS system, distorting test data and even posing safety hazards to the vehicle.
[0003] Currently, the most widely used air venting technology in the industry is still manual air venting. Operators need to repeatedly squeeze the handbrake or foot brake to use the flow of brake fluid to remove air bubbles from the system. However, this method has many obvious limitations: on the one hand, its effectiveness is highly dependent on the operator's experience and feel. Different operators have different control over the squeezing force and frequency, which can easily lead to incomplete air venting and leave residual air bubbles, posing a risk of data deviation in subsequent ABS tests. On the other hand, the manual operation process is cumbersome and time-consuming, especially in batch testing or repair scenarios, where the problem of low efficiency is even more prominent. This not only increases labor costs but also makes it difficult to meet the requirements of efficiency and standardization in modern repair and testing processes. With the continuous improvement of motorcycle safety performance standards, the requirements for the accuracy of ABS system testing and repair quality are becoming increasingly stringent. The existing manual air venting method is gradually becoming inadequate for the needs of industry development. Therefore, developing a technical solution that can break free from the constraints of manual experience and improve the efficiency and thoroughness of air venting has become an urgent problem to be solved in the field of motorcycle ABS testing and repair. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a hydraulic medium filling device for a hydraulic system, which can more accurately solve the problems described above.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model proposes a hydraulic medium filling device for a hydraulic system, including a housing, an adjustment mechanism fixedly installed on the upper rear side of the housing, and a filling mechanism fixedly installed on the front of the adjustment mechanism.
[0007] The filling mechanism includes a support plate, which is fixedly installed on the front of the adjustment mechanism. A gas storage cylinder is fixedly installed on the lower end of one side of the support plate. The output end of the gas storage cylinder is equipped with a first switch valve. A metal liquid storage bottle is bolted to the upper end of the front of the support plate near the gas storage cylinder. A second switch valve is fixedly connected to the top output end of the metal liquid storage bottle. A liquid delivery hose is fixedly installed to the output end of the second switch valve. A threaded interface is fixedly installed to the output end of the liquid delivery hose. A vacuum pump is bolted to the front of the support plate away from the gas storage cylinder. A negative pressure gas collecting bottle is bolted to the upper end of the front of the support plate away from the metal liquid storage bottle. A suction tube is fixedly installed to the input end of the negative pressure gas collecting bottle. A threaded interface is also fixedly installed to the input end of the suction tube. A third switch valve is installed to the input end of the negative pressure gas collecting bottle. A fourth switch valve is fixedly installed to the output end of the negative pressure gas collecting bottle. Pressure gauges are provided on the front of both the gas storage cylinder and the metal liquid storage bottle. A vacuum gauge is provided on the front of the negative pressure gas collecting bottle.
[0008] Furthermore, hinge seats are fixedly installed on both sides of the lower front of the box, and the interior of the hinge seats is rotatably connected to a traveling wheel.
[0009] Furthermore, a luggage handle is fixedly installed on the front of the box, and all the external corners of the box are rounded.
[0010] Furthermore, a filter is fixedly installed on the top of the vacuum pump, and the top of the filter is connected to the fourth switching valve.
[0011] Furthermore, two take-up rollers are rotatably connected to the upper front end of the support plate, and the suction pipe and the liquid delivery hose are respectively wound around the outer surface of the two take-up rollers.
[0012] Furthermore, a chassis is fixedly installed on the lower front end of the support plate, and the chassis contains a controller and a battery.
[0013] Furthermore, the adjustment mechanism includes a guide rail, which is fixedly installed in the middle of the rear side of the housing. A drive motor is fixedly installed at the bottom of the guide rail, and a lead screw is fixedly installed at the output end of the drive motor. A slider is threadedly connected to the outer surface of the lead screw, and the front of the slider is fixedly connected to the back of the support plate.
[0014] The beneficial effects of this utility model are:
[0015] 1. During the application of this technical solution, by setting up an exhaust and liquid injection structure consisting of a vacuum pump, a negative pressure liquid collection bottle, a switch valve, a pressure gauge, and a vacuum gauge, it is possible to achieve full exhaust of air bubbles during use through vacuuming, air pressure injection of brake fluid, and secondary exhaust process. With the negative pressure liquid collection bottle set higher than the handbrake, the air bubbles can be fully discharged, thereby reducing the residual air bubbles and eliminating the reliance on manual experience. This solves the problems of low efficiency and easy residual air bubbles in manual exhaust in the background technology.
[0016] 2. During the application of this technical solution, by setting up portable mobile structures such as walking wheels, luggage handles, adjustment mechanisms, winding wheels and batteries, it is possible to flexibly move the equipment during use, adjust the height to adapt to different vehicle models, and make the winding cable easy to store without the need for an external power supply. This achieves the effect of improving the portability and versatility of the equipment, and solves the problems of traditional manual operation that require the preparation of multiple tools on site and are inconvenient to move. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the unfolded structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the box body of this utility model;
[0020] Figure 4 This is a rear view schematic diagram of the filling mechanism of this utility model;
[0021] Figure 5 This is a front view structural diagram of the filling mechanism of this utility model.
[0022] In the diagram: 1. Housing; 2. Adjustment mechanism; 21. Guide rail; 22. Drive motor; 23. Lead screw; 24. Slider; 3. Filling mechanism; 31. Support plate; 32. Gas cylinder; 33. First switch valve; 34. Metal liquid storage bottle; 35. Second switch valve; 36. Liquid delivery hose; 37. Threaded interface; 38. Vacuum pump; 39. Negative pressure gas collection bottle; 310. Suction pipe; 311. Third switch valve; 312. Fourth switch valve; 313. Filter; 314. Pressure gauge; 315. Vacuum gauge; 4. Hinge seat; 5. Wheels; 6. Luggage handle; 7. Winding wheel; 8. Chassis. Detailed Implementation
[0023] 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.
[0024] Example 1
[0025] A hydraulic medium filling device for a hydraulic system includes a housing 1, an adjustment mechanism 2 is fixedly installed on the upper rear side of the housing 1, and a filling mechanism 3 is fixedly installed on the front of the adjustment mechanism 2.
[0026] The filling mechanism 3 includes a support plate 31, with a top cover on top of the support plate 31. The top cover can cover the top of the box 1 and can provide protection during transport. The support plate 31 is fixedly installed on the front of the adjustment mechanism 2. A gas cylinder 32 is fixedly installed on the lower end of one side of the front of the support plate 31. The output end of the gas cylinder 32 is equipped with a first switch valve 33. A metal liquid storage bottle 34 is bolted to the upper end of the front of the support plate 31 near the gas cylinder 32. A second switch valve 35 is fixedly connected to the top output end of the metal liquid storage bottle 34. A liquid delivery hose 36 is fixedly installed at the output end of the second switch valve 35. A threaded interface 37 is fixedly installed at the output end of the liquid delivery hose 36. The side of the front of the support plate 31 away from the gas cylinder 32... A vacuum pump 38 is bolted to the device. A negative pressure gas collecting bottle 39 is bolted to the upper end of the front side of the support plate 31 away from the metal liquid storage bottle 34. A suction pipe 310 is fixedly installed at the input end of the negative pressure gas collecting bottle 39, and a threaded interface 37 is also fixedly installed at the input end of the suction pipe 310. A third switch valve 311 is installed at the input end of the negative pressure gas collecting bottle 39, and a fourth switch valve 312 is fixedly installed at the output end of the negative pressure gas collecting bottle 39. Pressure gauges 314 are installed on the front of both the gas storage bottle 32 and the metal liquid storage bottle 34, and a vacuum gauge 315 is installed on the front of the negative pressure gas collecting bottle 39. During the application of this device, the height of the filling mechanism 3 can be adjusted by the adjustment mechanism 2 at the upper rear end of the internal structure, supported by the housing 1, to adapt to different systems. The position of the system interface ensures that the threaded interfaces 37 of the liquid delivery hose 36 and the suction pipe 310 can smoothly connect with the corresponding interfaces of the braking system. Airflow and liquid flow are controlled by operating various switching valves. The third switching valve 311 controls the passage between the suction pipe 310 and the negative pressure gas collecting bottle 39. When open, it can cooperate with the vacuum pump 38 to evacuate the braking system; when closed, it blocks the passage. The fourth switching valve 312 controls the connection between the negative pressure gas collecting bottle 39 and the vacuum pump 38. When open, it facilitates the vacuum pump 38 to evacuate the negative pressure gas collecting bottle 39; when closed, it maintains the vacuum state inside the bottle. When the vacuum pump 38 is started, the vacuum gauge 315 on the front of the negative pressure gas collecting bottle 39 can display the system vacuum status, making it easy to judge the degree of vacuuming. The gas storage bottle 32 is connected to the first switching valve 311. 3. Gas is supplied to the metal storage bottle 34. The pressure gauge 314 on its front can monitor pressure changes to ensure stable gas supply. The second switch valve 35 controls the connection and disconnection between the metal storage bottle 34 and the liquid delivery hose 36. When opened, brake fluid can be injected into the braking system through the liquid delivery hose 36. The negative pressure gas collection bottle 39 can collect the air bubbles and liquid discharged from the braking system. The pressure gauge 314 on the front of the metal storage bottle 34 helps to control the injection rhythm. The housing 1 provides the installation foundation for all components of the entire equipment, ensuring the stability of the structure. The flexible adjustment mechanism 2 allows the equipment to work efficiently in different scenarios. This process does not require manual squeezing operation. The exhaust and liquid injection are completed through instrument monitoring and mechanical control, reducing air bubble residue, improving efficiency, and eliminating the dependence on manual experience.
[0027] Combination Figures 1-3 As shown, hinge seats 4 are fixedly installed on both sides of the lower front of the box 1. The interior of the hinge seats 4 is rotatably connected to the traveling wheels 5. The front of the box 1 is fixedly installed with a luggage pull rod 6. The outer corners of the box 1 are all rounded. The top of the vacuum pump 38 is fixedly installed with a filter 313. The top of the filter 313 is connected to the fourth switch valve 312. The upper front of the support plate 31 is rotatably connected with two winding wheels 7. The suction pipe 310 and the liquid delivery hose 36 are respectively wrapped around the outer surface of the two winding wheels 7. The lower front of the support plate 31 is fixedly installed with a housing 8. The housing 8 contains a controller and a battery.
[0028] In the above-described embodiments of this application, during the application of this device, the wheels 5 at the lower front of the housing 1 can rotate flexibly, and together with the front luggage handle 6, it can easily move the device and adapt to the needs of different work sites. The outer corners of the housing 1 are rounded to reduce damage caused by collisions with other objects during movement. The filter 313 on the top of the vacuum pump 38 can filter impurities in the gas to prevent them from entering the vacuum pump 38 and affecting the normal operation of the equipment, thus ensuring the stable operation of the vacuum pump 38. The two winding wheels 7 at the upper front of the support plate 31 can respectively wind up and organize the suction pipe 310 and the liquid delivery hose 36 to prevent the pipes from getting tangled and messy, making operation and storage convenient. Inside the chassis 8 at the lower front of the support plate 31, the controller can control the operation of each component of the equipment to ensure that the operation process is orderly. The battery provides power support for the equipment, so that the equipment does not need to rely on an external power source, improving the flexibility of use. These structures work together to facilitate the movement and storage of the equipment during operation, while ensuring the stable operation and ease of operation, reducing the tediousness of manual operation and improving work efficiency.
[0029] Example 2
[0030] Combination Figures 3-5 As shown, the adjustment mechanism 2 includes a guide rail 21, which is fixedly installed in the middle of the rear side of the housing 1. A drive motor 22 is fixedly installed at the bottom of the guide rail 21. A lead screw 23 is fixedly installed at the output end of the drive motor 22. A slider 24 is threadedly connected to the outer surface of the lead screw 23. The front of the slider 24 is fixedly connected to the back of the support plate 31.
[0031] In the technical solution described in the above-described embodiments of this application, when the device is in use, the adjustment mechanism 2 operates, driving the drive motor 22 to rotate the lead screw 23. Since the lead screw 23 is threadedly connected to the slider 24, the rotational motion of the lead screw 23 is converted into the linear motion of the slider 24 along the guide rail 21, thereby driving the support plate 31 to move accordingly. During this process, the guide rail 21 provides stable guidance for the movement of the slider 24, ensuring that the support plate 31 does not deviate when moving, thus ensuring the accuracy of the movement. By controlling the forward and reverse rotation of the drive motor 22, the slider 24 and the support plate 31 can be adjusted up and down, thereby adjusting the height of the filling mechanism 3 according to different work requirements, so that it can be adapted to various specifications of hydraulic system interfaces. This adjustment method does not require manual adjustment, is convenient to operate and has high adjustment accuracy, reduces docking errors caused by improper manual operation, improves the versatility and work efficiency of the equipment, and allows the equipment to play a more flexible role in different scenarios.
[0032] The working principle and advantages of this utility model are as follows: First, connect the threaded interface 37 at the output end of the fluid delivery hose 36 to the brake fluid inlet of the motorcycle handbrake master cylinder, and connect the threaded interface 37 at the input end of the suction pipe 310 to the ABS exhaust port. Close the first switch valve 33 and the second switch valve 35, and open the third switch valve 311 and the fourth switch valve 312. Start the vacuum pump 38 and evacuate the braking system through the suction pipe 310. Observe the vacuum gauge 315 on the front of the negative pressure collection bottle until it shows an approximate vacuum state. Then, close the vacuum pump 38. Subsequently, add brake fluid to the metal reservoir 34, close the fourth switch valve 312, and open the first switch valve 33. The gas in the gas storage bottle 32 enters the metal reservoir 34. The pressure gauge 314 on its front can monitor the internal pressure change, causing the pressure inside the metal reservoir 34 to rise. Open the second switch valve 35. Under the action of air pressure, the brake fluid is injected into the braking system through the fluid delivery hose 36 and flows to the negative pressure... During use, the negative pressure collecting bottle is positioned higher than the motorcycle handbrake. Air bubbles in the braking system rise slowly due to buoyancy and flow into the negative pressure collecting bottle with the brake fluid. After settling, the third switch valve 311 is closed, the fourth switch valve 312 is opened, and the vacuum pump 38 is restarted. Once the negative pressure collecting bottle reaches a near-vacuum state, the fourth switch valve 312 is closed, and the third switch valve 311 is opened. Residual air bubbles in the system continue to slowly drain into the negative pressure collecting bottle, completing the fluid injection and venting process. During this process, the second switch valve 35 controls the brake fluid output, and the first switch valve 33 adjusts the air pressure supply from the air reservoir 32 to the metal reservoir 34, ensuring stable injection pressure. The pressure gauge 314 displays the pressure in real time, facilitating control of the injection rhythm. The negative pressure collecting bottle collects air bubbles and excess brake fluid, and the vacuum gauge 315 assists in judging the vacuum state, ensuring that air bubbles are fully expelled during injection. This solves the problems of manual venting relying on experience and the tendency for residual air bubbles in the prior art.
[0033] During use, the hinge seats 4 on both sides of the lower front of the housing 1 are internally connected to the traveling wheels 5, and the luggage pull rod 6 is fixedly installed on the front. When the pull rod is pushed or pulled, the traveling wheels 5 can rotate flexibly, realizing convenient movement of the equipment and adapting to the transfer needs of different work sites. The external corners of the housing 1 are rounded to avoid hard collisions with other objects during movement, reducing the risk of equipment damage. In the adjustment mechanism 2, the drive motor 22 drives the lead screw 23 to rotate, causing the slider 24 to move up and down along the guide rail 21, thereby adjusting the height of the bearing plate 31. This can adapt to the interface position of different motorcycle models, eliminating the need to consider differences in motorcycle models. The interchangeable equipment enhances versatility. The two winding wheels 7 at the upper front of the support plate 31 are respectively connected to the suction tube 310 and the liquid delivery hose 36. When not in use, the hoses can be wound up to avoid tangled lines and make them easy to store and carry. The battery inside the chassis 8 provides power to the drive motor 22, vacuum pump 38, etc., eliminating the need for an external power source. This allows the equipment to be used in environments without power supply, enhancing its flexibility. These structural designs collectively improve the portability and ease of use of the equipment, solving the problems of traditional manual operation that requires the preparation of multiple tools on-site and is inconvenient to move, thus improving the efficiency of motorcycle ABS testing and maintenance.
[0034] During application, the device's housing 1 has a length of 600-800mm, a width of 400-500mm, and a height of 500-700mm; the gas storage cylinder 32 has a volume of 5-10L and a working pressure of 0.5-1.0MPa; the metal liquid storage bottle 34 has a volume of 2-5L and is made of 304 stainless steel; the liquid delivery hose 36 and the suction pipe 310 have an inner diameter of 8-12mm and a length of 3-5m; the negative pressure gas collecting bottle 39 has a volume of 1-3L and a working temperature of -10-60℃; the vacuum pump 38 is an oil-free vortex vacuum pump 38, model VCH1028, with a rated voltage of 24V and a pumping speed of 28L / min; the first, second, third, and fourth... All switching valves are electromagnetic ball valves, model 2W-160-15, rated voltage 12V; winding wheel 7 diameter 100-150mm, width 50-80mm; hinge seat 4 is made of cast steel; walking wheel 5 diameter 100-150mm, load capacity ≥50kg; luggage handle 6 length adjustable range 800-1200mm; controller uses STM32F103 series microcontroller, installed inside chassis 8 at the lower front of the support plate 31; battery uses 12V / 20Ah lead-acid battery, connected to vacuum pump 38, electromagnetic ball valve, drive motor 22 and controller through wires to power various electronic components;
[0035] The scope of protection of this application does not involve improvements to the electronic components of the device or equipment. Therefore, the working principles of each electronic component are not described in detail here. The electronic components in this application are all conventional electronic components used in the prior art. They are all conventional technical means in the prior art, and the application of the prior art is very mature. Therefore, they will not be elaborated here.
[0036] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.
Claims
1. A hydraulic medium filling device for a hydraulic system, characterized in that, Includes a housing (1), an adjustment mechanism (2) is fixedly installed on the upper rear side inside the housing (1), and a filling mechanism (3) is fixedly installed on the front of the adjustment mechanism (2); The filling mechanism (3) includes a support plate (31), which is fixedly installed on the front of the adjusting mechanism (2). A gas cylinder (32) is fixedly installed on the lower end of one side of the support plate (31). The output end of the gas cylinder (32) is provided with a first switch valve (33). A metal liquid storage bottle (34) is installed on the upper end of one side of the support plate (31) by bolts. A second switch valve (35) is fixedly connected to the output end of the metal liquid storage bottle (34). A liquid delivery hose (36) is fixedly installed on the output end of the second switch valve (35). A vacuum pump (38) is bolted to one side of the front of the support plate (31). A negative pressure gas collecting bottle (39) is bolted to the upper end of the side of the support plate (31) away from the metal liquid storage bottle (34). A suction tube (310) is fixedly installed at the input end of the negative pressure gas collecting bottle (39). A threaded interface (37) is also fixedly installed at the input end of the suction tube (310). A third switch valve (311) is installed at the input end of the negative pressure gas collecting bottle (39). A fourth switch valve (312) is fixedly installed at the output end of the negative pressure gas collecting bottle (39).
2. The hydraulic medium filling device for a hydraulic system according to claim 1, characterized in that, The lower front sides of the housing (1) are fixedly installed with hinge seats (4), and the interior of the hinge seats (4) is rotatably connected with a traveling wheel (5). The output end of the liquid delivery hose (36) is fixedly installed with a threaded interface (37).
3. The hydraulic medium filling device for a hydraulic system according to claim 2, characterized in that, A luggage handle (6) is fixedly installed on the front of the box (1). The outer corners of the box (1) are all rounded. A pressure gauge (314) is provided on the front of the gas storage bottle (32) and the metal liquid storage bottle (34). A vacuum gauge (315) is provided on the front of the negative pressure gas collecting bottle (39).
4. A hydraulic medium filling device for a hydraulic system according to claim 1, characterized in that, A filter (313) is fixedly installed on the top of the vacuum pump (38), and the top of the filter (313) is connected to the fourth switching valve (312).
5. A hydraulic medium filling device for a hydraulic system according to claim 1, characterized in that, Two take-up wheels (7) are rotatably connected to the upper front end of the bearing plate (31), and the suction tube (310) and the liquid delivery hose (36) are respectively wrapped around the outer surface of the two take-up wheels (7).
6. A hydraulic medium filling device for a hydraulic system according to claim 1, characterized in that, A housing (8) is fixedly installed on the lower front end of the support plate (31), and the housing (8) contains a controller and a battery.
7. A hydraulic medium filling device for a hydraulic system according to claim 1, characterized in that, The adjustment mechanism (2) includes a guide rail (21), which is fixedly installed in the middle of the rear side of the housing (1). A drive motor (22) is fixedly installed at the bottom of the guide rail (21). A lead screw (23) is fixedly installed at the output end of the drive motor (22). A slider (24) is threadedly connected to the outer surface of the lead screw (23). The front of the slider (24) is fixedly connected to the back of the support plate (31).