TWI896002B - Hydraulic brake vacuum oil change tool - Google Patents

Abstract

A hydraulic brake vacuum oil change tool, including: an oil pumping assembly, which has a pipe body and a pulling part that can repeatedly move laterally relative to the pipe body; an oil storage assembly, which has an oil storage cylinder and is assembled on the oil storage cylinder There is an upper cover on the top. Both sides of the upper cover have a one-way air-conducting valve body and an oil-conducting component respectively. One end of the one-way air-conducting valve body is connected to the pipe body, the other end is connected to the oil storage tank, and the bottom end is connected to the outside. And the one-way air-guiding valve body has an air-guiding space inside that is connected to the air extraction space of the pipe body and the oil storage space respectively, and the oil-guiding component has an oil-guiding pipe and a first knob valve body, and the first knob The valve body controls whether the oil guide pipe is conductive or not; the oil transfer assembly has an adapter and a first oil pipe, a second oil pipe and a third oil pipe that are interconnected with the inside of the adapter. The first oil pipe is connected to the oil guide component. The oil conduction space, the second oil pipe and the third oil pipe are respectively connected to the hydraulic brake module

Description

Hydraulic brake vacuum oil change tool

The present invention relates to the technical field of bicycle hydraulic brakes, and in particular to a vacuum oil changing tool for hydraulic brakes.

In recent years, bicycles have become increasingly popular as both a form of recreation and transportation. Cycling has become a popular competitive sport for both amateurs and professionals. Consequently, the bicycle industry continues to improve various brake components. Common brake systems include suspension brakes, C-clamps, V-clamps, and calipers. Among these, calipers are the most widely used on bicycles. With many major manufacturers releasing disc-brake road bikes, the rise of hydraulic brakes has become a trend. The hydraulic brake system currently used in bicycles primarily consists of the brake lever, the brake caliper mounted next to the wheel, and the hydraulic hose connecting the two. When braking, the rider grips the brake lever, pulling the hydraulic hose. This draws hydraulic fluid from the brake lever to the brake caliper, which in turn activates the brakes, generating the braking action. Therefore, to maintain good braking force, regular disc brake fluid replacement is crucial.

The main purpose of this invention is to provide a hydraulic brake vacuum oil change tool to improve oil change efficiency.

To achieve the above-mentioned objectives and effects, the present invention provides a hydraulic brake vacuum oil change tool comprising: an oil extraction assembly having a tube and a pull-out member capable of repeated transverse displacement relative to the tube; an oil storage assembly having an oil storage cylinder and an upper cover mounted on the top of the oil storage cylinder, with a one-way air valve and an oil guide member on either side of the upper cover, respectively. The one-way air valve is connected to the tube at one end and to the oil storage cylinder at the other end, while the bottom end is connected to the outside. The one-way air valve is also connected to the outside. The interior of the oil-conducting component comprises an air-conducting space that is connected to the air extraction space and the oil storage space of the tube body, respectively. The oil-conducting component comprises an oil-conducting pipe and a first knob valve body, which controls the flow of the oil-conducting pipe. The oil-delivery assembly comprises an adapter and first, second, and third oil-delivery pipes that are interconnected within the adapter. The first oil-delivery pipe is connected to the oil-conducting space of the oil-conducting component, while the second and third oil-delivery pipes are connected to the hydraulic brake module.

The hydraulic brake module comprises a brake lever assembly, an oil filling cylinder, a first brake caliper, and a second brake caliper. The brake lever assembly has an oil tank. The oil filling cylinder has an oil filling hole in its barrel and is connected to the oil tank of the brake lever assembly via an oil filling component. The oil filling component comprises an oil filling pipe and a second rotary valve. The oil filling pipe connects the oil filling cylinder and the oil tank, allowing oil in the oil filling cylinder to flow into the oil tank. The second rotary valve controls the internal flow of the oil filling pipe. The brake lever assembly is connected to the first brake caliper and the third oil supply pipe via a first oil pipe, and to the second brake caliper and the second oil supply pipe via a second oil pipe.

1: Oil pumping assembly

10: Tube body

100: Exhaust space

11: Pull-out components

110: Shaft

111: Pushing part

112: Grip

12: Connecting parts

13: Tail cover

130: Auxiliary Department

2: Oil storage components

20: Oil storage tank

21: Upper cover

200: Oil storage space

22: One-way air valve body

220: First air guide unit

221: Second air guide unit

222: Air-Conducting Space

23: Oil guide components

230: Oil pipe

231: First knob valve body

232: Oil guide space

3: Oil transfer components

30: Adapter

31: First Oil Pipeline

32: Second oil pipeline

33: Third Oil Pipeline

4: Hydraulic brake module

40: Brake handle assembly

400: Handle

401: Fuel Tank

402: First Oil Pipeline

403: Second oil pipeline

41: Oil filling cylinder

410: Oil filling hole

42: First brake caliper

43: Second brake caliper

44: Oil filling parts

440: Oil filling pipe

441: Second knob valve body

The first figure is a three-dimensional assembly diagram of the present invention.

The second figure is a cross-sectional view of the present invention based on the combination of II-II in the first figure.

The third figure is a cross-sectional view (1) of the present invention in operation according to the second figure.

Figure 4 is a cross-sectional view (2) of the present invention in operation according to Figure 2.

Figure 5 is a three-dimensional assembly diagram of the present invention applied to a hydraulic brake module.

Referring to Figures 1 through 5, the hydraulic brake vacuum oil change tool of the present invention comprises an oil extraction assembly 1, a transparent tube 10, and a pull-out member 11 displaceable within the tube 10. The tube 10 defines a vacuum chamber 100. One end of the tube 10 includes a connecting member 12 connected to the vacuum chamber 100, while the other end is fitted with a tail cap 13. The tail cap 13 seals the vacuum chamber 100 and has an auxiliary portion 130 extending outward from its periphery. The pull-out member 11 comprises a shaft 110, and a push portion 111 and a grip portion 112, respectively, disposed at opposite ends of the shaft 110.

The oil storage assembly 2 comprises an oil storage cylinder 20 and an upper cover 21 mounted on the top of the oil storage cylinder 20. The oil storage cylinder 20 has an oil storage space 200 within it. A one-way air guide valve 22 and an oil guide component 23 are respectively provided on either side of the upper cover 21. One end of the one-way air guide valve 22 is connected to the connecting component 12 of the tube body 10, and the other end is provided with a first air guide portion 220. The first air guide portion 220 is connected to the oil storage space 200. A second air guide portion 221 is provided at the bottom end of the one-way air guide valve 22 for external communication. Furthermore, the one-way air guide valve 22 has an air guide space 222 within it that is in electrical communication with the connecting component 12, the first air guide portion 220, and the second air guide portion 221. The oil-conducting component 23 includes an oil-conducting tube 230 and a first knob valve 231. The oil-conducting tube 230 is connected to the oil storage space 200. The first knob valve 231 defines an oil-conducting space 232 within the oil-conducting tube 230. The first knob valve 231 controls the flow of oil between the oil-conducting space 232 and the oil-conducting tube 230.

The oil delivery assembly 3 comprises an adapter 30 and a first oil delivery pipe 31, a second oil delivery pipe 32, and a third oil delivery pipe 33 interconnected within the adapter 30. The first oil delivery pipe 31 is connected to the oil-conducting space 232, while the second oil delivery pipe 32 and the third oil delivery pipe 33 are respectively connected to the hydraulic brake module 4 (as shown in FIG5).

Specifically, the hydraulic brake module 4 comprises a brake lever assembly 40, an oil filling cylinder 41, a first brake caliper 42, and a second brake caliper 43. The brake lever assembly 40 comprises a handle 400 and an oil tank 401. The oil filling cylinder 41 has an oil filling hole 410 in its barrel and is connected to the oil tank 401 of the brake lever assembly 40 via an oil filling member 44. The oil filling member 44 comprises an oil filling tube 440 and a second rotary valve 441. The oil filling tube 440 connects the oil filling cylinder 41 and the oil tank 401, allowing the oil in the oil filling cylinder 41 to flow into the oil tank 401. The second rotary valve 441 controls the flow of oil within the oil filling tube 440. Furthermore, the brake lever assembly 40 is connected to the first brake caliper 42 and the third oil supply pipe 33 via a first oil pipe 402, and the second oil pipe 403 is connected to the second brake caliper 43 and the second oil supply pipe 32, respectively. The first brake caliper 42 and the second brake caliper 43 are used to brake the bicycle wheels (not shown).

When the oil in the hydraulic brake module 4 is to be replaced, the user rotates the first knob valve body 231 to connect the oil guide space 232 of the oil guide component 23. The user then holds the grip 112 with his fingers and repeatedly pulls and pulls the pull-out component 11 relative to the tube body 10. When the first brake caliper 42 and the second brake caliper 43 and the first and second oil pipes 402 and 403 are evacuated into a vacuum state, the user then rotates the second knob valve body 441 to allow the new oil in the oil filling cylinder 41 to flow through the oil filling pipe 440 to the oil tank 401. At this point, the handle 400 of the brake lever assembly 40 is pressed, while the pull-pull member 11 continues to pump and pull. This causes the air in the exhaust space 100 of the tube 10 to be drawn out through the second air guide 221, creating a vacuum. The old oil is then drawn into the oil storage space 200 of the oil reservoir 20 for storage, while new oil is pumped into the oil tank 401 of the brake lever assembly 40 and into the first and second brake calipers 42 and 43, achieving a vacuum oil change. Furthermore, if the oil in the oil filling tank 41 is low, it can be replenished through the oil filling port 410.

It's worth noting that during the pumping cycle, the one-way air valve 22 allows the remaining oil to flow only through the oil pipe 230 into the oil storage space 200 of the oil storage cylinder 20. During the exhaust cycle, the gas within the pipe 10 of the pumping assembly 1 is discharged only through the second air guide portion 221 and does not flow into the oil storage space 200.

In summary, the structural invention disclosed in the "Hydraulic Brake Vacuum Oil Changing Tool" of this invention possesses unprecedented innovations, and therefore its novelty is unquestionable. Furthermore, this invention offers enhanced functionality compared to conventional structures, thus demonstrating its advancement. This invention fully complies with the provisions of the Republic of my country Patent Law regarding invention patent applications. Therefore, we have filed a patent application with the Jun Bureau in accordance with the law, and sincerely request that the Jun Bureau grant the patent rights for this case as soon as possible. We would be grateful for this favor.

The above is merely an illustration of the preferred embodiments of the present invention and is not intended to limit the present invention in any form. Therefore, any modifications or alterations to the present invention made within the same creative spirit, which are other forms of implementation and have the same effect, should still be included in the scope of protection of the present invention.

Oil pumping assembly 1 Tube 10 Pulling member 11 Grip 112 Connecting member 12 Tail cap 13 Auxiliary member 130 Oil storage assembly 2 Oil storage cylinder 20 Upper cap 21 One-way air valve 22 Oil guide member 23 First knob valve 231 Oil delivery assembly 3 Adapter 30 First oil delivery pipe 31 Second oil delivery pipe 32 Third oil delivery pipe 33

Claims (8)

A hydraulic brake vacuum oil change tool comprises: An oil extraction assembly having a tube body and a pull-out member capable of repeated transverse displacement relative to the tube body, the tube body having an internal vacuum space; The oil storage assembly comprises an oil storage cylinder and an upper cover mounted on the top of the oil storage cylinder. The oil storage cylinder has an oil storage space within it. A one-way air guide valve and an oil guide component are respectively provided on both sides of the upper cover. The one-way air guide valve is connected to the air extraction space of the tube at one end and to the oil storage space at the other end, while the bottom end is connected to the outside. The one-way air guide valve has an air guide space within it that is in communication with the air extraction space and the oil storage space in the tube, respectively. The oil guide component comprises an oil guide pipe and a first knob valve body. The oil guide pipe is in communication with the oil storage space. The first knob valve body has an oil guide space within it that is in communication with the oil guide pipe. The first knob valve body controls whether the oil guide space is in communication with the oil guide pipe. The oil delivery assembly comprises an adapter and a first oil delivery pipe, a second oil delivery pipe, and a third oil delivery pipe interconnected with the interior of the adapter. The first oil delivery pipe is connected to the oil guide space of the oil guide component. As described in claim 1, the hydraulic brake vacuum oil changing tool has a connecting component connected to the exhaust space at one end of the tube body and a tail cap is provided at the other end, the tail cap seals the exhaust space and has an auxiliary portion extending outward from the periphery. As described in claim 2, the hydraulic brake vacuum oil changing tool, wherein one end of the one-way air valve body is connected to the connecting component of the tube body, the other end is internally provided with a first air guide portion connected to the oil storage space, and the bottom end is internally provided with a second air guide portion connected to the outside, and the air guide space inside the one-way air valve body is respectively connected to the connecting component, the first air guide portion and the second air guide portion. A hydraulic brake vacuum oil changing tool as described in claim 1, wherein the second oil pipe and the third oil pipe of the oil delivery assembly are respectively connected to the hydraulic brake module. A hydraulic brake vacuum oil change tool comprises: An oil extraction assembly having a tube body and a pull-out member capable of repeated transverse displacement relative to the tube body, the tube body having an internal vacuum space; The oil storage assembly comprises an oil storage cylinder and an upper cover mounted on the top of the oil storage cylinder. The oil storage cylinder has an oil storage space within it. A one-way air guide valve and an oil guide component are respectively provided on both sides of the upper cover. The one-way air guide valve is connected to the air extraction space of the tube at one end and to the oil storage space at the other end, while the bottom end is connected to the outside. The one-way air guide valve has an air guide space within it that is in communication with the air extraction space and the oil storage space in the tube, respectively. The oil guide component comprises an oil guide pipe and a first knob valve body. The oil guide pipe is in communication with the oil storage space. The first knob valve body has an oil guide space within it that is in communication with the oil guide pipe. The first knob valve body controls whether the oil guide space is in communication with the oil guide pipe. An oil delivery assembly comprises an adapter and a first oil delivery pipe, a second oil delivery pipe, and a third oil delivery pipe interconnected within the adapter. The first oil delivery pipe is connected to the oil delivery space of the oil-conducting component, and the second and third oil delivery pipes are respectively connected to the hydraulic brake module. The hydraulic brake module comprises a brake lever assembly, an oil filling cylinder, a first brake caliper, and a second brake caliper. The brake lever assembly has an oil tank. The oil filling cylinder and the oil tank of the brake lever assembly are connected via an oil filling component. The oil filling component comprises an oil filling pipe and a second rotary valve. The oil filling pipe connects between the oil filling cylinder and the oil tank, allowing oil in the oil filling cylinder to flow into the oil tank. The second rotary valve controls the internal flow of the oil filling pipe. The brake lever assembly is connected to the first brake caliper and the third oil supply pipe via a first oil pipe, and to the second brake caliper and the second oil supply pipe via a second oil pipe. A hydraulic brake vacuum oil changing tool as described in claim 5, wherein the barrel of the oil filling cylinder has an oil filling hole. As described in claim 5, the hydraulic brake vacuum oil changing tool has a connecting component connected to the exhaust space at one end of the tube body and a tail cap is provided at the other end, the tail cap seals the exhaust space and has an auxiliary portion extending outward from the periphery. As described in claim 7, the hydraulic brake vacuum oil changing tool, wherein one end of the one-way air valve body is connected to the connecting component of the tube body, the other end is provided with a first air guide portion connected to the oil storage space, and the bottom end is provided with a second air guide portion connected to the outside, and the air guide space inside the one-way air valve body is connected to the connecting component, the first air guide portion and the second air guide portion respectively.