Coupler for vacuum oil injection of disc brake calipers
By designing a connector that integrates oil injection and vacuuming functions, the problems of existing connectors being unable to connect to the lower pump and having limited functionality have been solved. This enables quick assembly and disassembly and efficient operation, improving production efficiency and equipment automation.
Patent Information
- Application Number
- CN202520279041.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-20
Smart Images

Figure CN223894627U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically a connector for vacuuming and lubricating disc brake calipers. Background Technology
[0002] During the manufacturing process of disc brake assemblies, vacuuming and lubrication are required. Currently, these operations are often performed by connecting to the upper pump of the disc brake assembly, which is inefficient. To improve vacuuming efficiency, bidirectional vacuuming is needed between the upper and lower pumps. However, existing technology lacks a connector that can directly connect to the lower pump.
[0003] Traditional connectors are relatively simple in design and have limited functionality. They often cannot be directly connected to the lower pump, and most current connectors can only perform a single function of vacuuming or oil injection.
[0004] Therefore, developing a connector that can be quickly attached and detached from the lower pump vent screw, integrates oil injection and vacuuming functions, and has a simple structure is of great practical significance. Utility Model Content
[0005] In view of the shortcomings in the prior art, this utility model provides a connector for vacuuming and lubricating disc brake calipers.
[0006] The technical solution adopted by this utility model is: a connector for vacuuming and lubricating disc brake calipers. The connector includes a quick connector for quick assembly and disassembly with the bleed screw of the lower pump, an adapter block for connecting with the quick connector, and an outer shell fitted over the adapter block. The quick connector is provided with an oil inlet. The adapter block is provided with an oil inlet channel and a second vacuuming channel. Both the oil inlet channel and the second vacuuming channel are connected to the oil inlet. Both the oil inlet channel and the second vacuuming channel are provided with opening and closing components for controlling the opening and closing of the oil inlet channel and the second vacuuming channel.
[0007] Furthermore, the opening and closing assembly includes a pneumatic piston and a plug connected to the pneumatic piston. The pneumatic piston is installed in a piston chamber, and an air inlet channel is provided on the piston chamber located on both sides of the pneumatic piston.
[0008] Furthermore, the quick connector includes an oil filling core with an oil filling port, a sleeve that slides around the oil filling core, an opening and closing mechanism for driving the sleeve to move up and down, and a quick-connect housing and a quick-connect sealing head that are fitted on the sleeve. The top of the sleeve is provided with a ring of movable steel balls, and the inner wall of the quick-connect sealing head is provided with a clearance ring groove and a pressing surface.
[0009] Furthermore, the opening and closing mechanism is a piston body fixed on the sleeve, and the quick-connect housing is provided with a piston chamber two for installing the piston body. The piston chamber two located on both sides of the piston body is provided with an air intake channel two.
[0010] Furthermore, the top of the quick-connect sealing head is provided with a sealing groove for installing a sealing ring.
[0011] Furthermore, it also includes handles provided on the quick-connect housing and housing body.
[0012] The beneficial effects of this utility model are:
[0013] 1. Quick and easy assembly / disassembly: The quick-connect coupling allows for rapid assembly and disassembly with the lower brake bleed screw, eliminating the need for cumbersome tools and complex procedures required in traditional connection methods. In mass production, this significantly reduces the assembly time of individual disc brake assemblies, improving production efficiency. During routine maintenance and emergency repairs, it allows technicians to quickly replace or operate the connectors, reducing equipment downtime and enhancing overall work efficiency.
[0014] 2. Multifunctional integration: By setting up an oil injection channel and a vacuuming channel II, and simultaneously installing opening and closing components in both channels, oil injection and vacuuming operations can be realized, integrating oil injection and vacuuming functions, thus changing the previous situation where two connectors were needed to perform different functions separately.
[0015] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a cross-sectional view of the present invention.
[0018] Figure 3 This is a vertical cross-sectional view of the present invention.
[0019] Figure 4 This is a schematic diagram illustrating the use of this utility model. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0022] This invention provides a connector for vacuuming and lubricating disc brake calipers.
[0023] In this embodiment, refer to Figure 1-4 The connector for vacuuming and lubricating disc brake calipers includes a quick-connect coupling 2 for quick assembly and disassembly with the bleed screw 1 of the lower pump, an adapter block 3 for connecting to the quick-connect coupling, and an outer housing 4 fitted over the adapter block 3. The quick-connect coupling has an oil inlet 5. The adapter block has an oil inlet channel 6 and a vacuuming channel 2 7. Both the oil inlet channel and the vacuuming channel 2 are connected to the oil inlet, and both the oil inlet channel and the vacuuming channel 2 are equipped with opening and closing components 8 for controlling the opening and closing of the oil inlet channel and the vacuuming channel 2.
[0024] In practical use, the oil filling channel and vacuum channel two are connected to the oil filling device and vacuuming device respectively. The oil filling channel or vacuum channel two is opened by the opening and closing component to perform vacuuming and oil filling operations on the disc brake assembly. The highly integrated design simplifies the equipment structure, reduces the number of parts, and lowers costs.
[0025] In addition, by setting up a quick connector, it is possible to quickly detach and assemble with the lower pump vent screw.
[0026] The bottom of the oil injection channel and the vacuum channel 2 of the adapter block is provided with a "T"-shaped channel 25 that communicates with the oil injection port. The oil injection channel or the vacuum channel 2 after opening is connected to the oil injection port through the "T"-shaped channel.
[0027] Specifically, the opening and closing assembly includes a pneumatic piston 9 and a plug 10 connected to the pneumatic piston. The pneumatic piston is installed in a piston chamber 26, and an air inlet channel 11 is provided on the piston chambers located on both sides of the pneumatic piston.
[0028] In this embodiment, an opening and closing assembly consisting of a pneumatic piston and a plug is used. By controlling the airflow through the air intake channel 11, the opening and closing of the channel can be precisely controlled. This pneumatic control method has a fast response speed and high control precision. Compared with traditional mechanical control methods, it is better suited to the needs of rapid and efficient production, and it also has good stability, reducing the probability of failure.
[0029] The plug is connected to the pneumatic piston, and air is supplied to one side of the pneumatic piston through the air intake channel to drive the pneumatic piston to move. Figure 1 The diagram shows one intake channel on one side of the pneumatic piston (the other intake channel is not shown), which drives the plug to move and open the channel (such as the oil injection channel and the vacuum channel).
[0030] Specifically, the quick connector includes an oil filling core 12 with an oil filling port, a sleeve 13 that slides around the oil filling core, an opening and closing mechanism 14 for driving the sleeve to move up and down, and a quick connector housing 15 and a quick connector sealing head 16 that are fitted on the sleeve. The top of the sleeve is provided with a ring of movable steel balls 17, and the inner wall of the quick connector sealing head is provided with a clearance ring groove 18 and a pressing surface 19.
[0031] In this embodiment, the sleeve of the quick-connect coupling can move up and down, and the movable steel ball engages with the relief ring groove and the clamping surface of the quick-connect sealing head. During connection and use, the quick-connect sealing head is aligned and inserted into the vent screw 37 of the upper pump. The opening and closing mechanism moves the sleeve upwards. During this upward movement, the movable steel ball moves from the relief ring groove towards the clamping surface. Under the action of the clamping surface, the movable steel ball protrudes inwards, clamping the vent screw 37. Connection and disconnection are simple and the seal is reliable. This design ensures no oil or gas leakage during oil filling and vacuuming, and allows for quick connection and disconnection from the lower pump, improving operational efficiency.
[0032] Specifically, the opening and closing mechanism is a piston body 20 fixed on the sleeve, and the quick-connect housing is provided with a piston chamber 21 for installing the piston body. The piston chambers 2 located on both sides of the piston body are provided with air intake channels 22.
[0033] In this embodiment, the opening and closing mechanism is similar in principle to the opening and closing component structure. Gas is introduced into the piston chamber on one side of the piston body through the second air intake channel, which drives the piston body to move in the second piston chamber. This indirectly drives the sleeve connected to the piston body to move up and down, realizing the automatic disconnection and connection of the quick connector, improving the level of automation and reducing labor costs.
[0034] Specifically, the top of the quick-connect sealing head is provided with a sealing groove 23 for installing a sealing ring.
[0035] In this embodiment, the top of the quick-connect sealing head rests against the vent screw of the upper pump, so that the top of the quick-connect sealing head presses the sealing groove against the vent screw of the upper pump, ensuring the sealing performance at the connection between the two.
[0036] Specifically, it also includes a handle 24 provided on the quick-connect housing and the housing body.
[0037] The quick-connect housing and casing are equipped with handles, providing operators with convenient grips. This allows for easier and less strenuous operation during connector installation, removal, and other procedures, improving work efficiency and reducing the likelihood of errors.
[0038] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.
Claims
1. A connector for vacuuming and lubricating disc brake calipers, characterized in that: The connector includes a quick-connect fitting for quick assembly and disassembly with the vent screw of the lower pump, an adapter block for connecting to the quick-connect fitting, and an outer housing fitted over the adapter block. The quick-connect fitting is provided with an oil inlet. The adapter block is provided with an oil inlet channel and a second vacuum channel. Both the oil inlet channel and the second vacuum channel are connected to the oil inlet, and both the oil inlet channel and the second vacuum channel are provided with opening and closing components for controlling the opening and closing of the oil inlet channel and the second vacuum channel.
2. The connector for vacuuming and lubricating disc brake calipers according to claim 1, characterized in that: The opening and closing assembly includes a pneumatic piston and a plug connected to the pneumatic piston. The pneumatic piston is installed in a piston chamber and an air inlet channel is provided on the piston chamber located on both sides of the pneumatic piston.
3. The connector for vacuuming and lubricating disc brake calipers according to claim 1, characterized in that: The quick connector includes an oil filling core with an oil filling port, a sleeve that slides around the oil filling core, an opening and closing mechanism for driving the sleeve to move up and down, and a quick-connect housing and a quick-connect sealing head that are fitted on the sleeve. The top of the sleeve is provided with a ring of movable steel balls, and the inner wall of the quick-connect sealing head is provided with a clearance ring groove and a pressing surface.
4. The connector for vacuuming and lubricating disc brake calipers according to claim 3, characterized in that: The opening and closing mechanism is a piston body fixed on the sleeve. The quick-connect housing is provided with a piston chamber II for installing the piston body. The piston chamber II located on both sides of the piston body is provided with an air intake channel II.
5. The connector for vacuuming and lubricating disc brake calipers according to claim 3, characterized in that: The quick-connect sealing head has a sealing groove on top for installing a sealing ring.
6. The connector for vacuuming and lubricating disc brake calipers according to claim 4, characterized in that: It also includes handles provided on the quick-connect housing and housing body.