Oil cup clutch master pump

Abstract

This utility model relates to a clutch master cylinder with an oil cup, comprising a pump body and an oil cup. The pump body has an oil inlet, and the oil cup has an oil nozzle that mates with the oil inlet. The oil cup also has a support leg, and the lower end of the support leg has a support block. The lower side of the support block is a first support surface, and the pump body has a second support surface that corresponds to and matches the first support surface. The support block and the pump body are also connected by a hose clamp, and the upper side of the support block is a connecting surface for the hose clamp. With the oil nozzle of the oil cup and the oil inlet of the pump body matched and connected, the support block at the lower end of the support leg additionally connects to the pump body for support, forming a stable positional relationship between the first and second support surfaces. This stable positional relationship is locked by the hose clamp. The oil cup connection is not only convenient, but also eliminates the need for a pin connection structure (no need to make pin holes or insert pins into pin holes), and the relative position of the oil cup and pump body is stable after assembly.

Description

Technical Field

[0001] This utility model relates to vehicle components, and more particularly to clutch master cylinders. Background Technology

[0002] An oil cup needs to be installed on the pump body of the clutch master cylinder for its operation. The oil cup is connected and installed by inserting an oil inlet into the pump body through an oil inlet with a single oil inlet. In addition, in order to further fix the oil cup, pin holes are usually made on the pump body and connecting holes are made on the oil cup, and then the pins (such as spring cylindrical pins) are used to connect and assemble the assembly. In this structure, the pin holes need to be made on the pump body. The pin hole structure is relatively complicated to process and requires relatively high processing precision, which leads to increased production costs. The pin connection structure is not convenient and is easy to be misaligned. In addition, in this structure, there is a gap between the oil cup and the pump body, and the oil cup is prone to tilting or moving on one side, which poses a risk of leakage. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a clutch master pump with an oil distribution cup.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a clutch master cylinder with an oil cup, comprising a pump body and an oil cup, wherein the pump body is provided with an oil inlet, and the oil cup is provided with an oil inlet nozzle, the oil inlet nozzle being connected to the oil inlet, characterized in that: the oil cup also has a support leg, the lower end of the support leg has a support block, the lower side of the support block is a first support surface, the pump body has a second support surface, the second support surface corresponding to and matching the first support surface, the support block and the pump body are also connected by a hose clamp, and the upper side of the support block is a connecting surface for the hose clamp to connect.

[0005] The following optimizations or supplementary explanations can be made to the above technical solutions.

[0006] For example, a boss is provided on the pump body, and the second support surface is located on the boss.

[0007] For example, the first support surface and the second support surface are both arc surfaces, and the first support surface is matched and abutted against the second support surface.

[0008] For example, the connecting surface can be a curved surface.

[0009] In addition, the support block is provided with a limiting protrusion, which is located on the connecting surface, and the hose clamp is connected between the limiting protrusion and the support leg.

[0010] In addition, the oil inlet and the second support surface are located on the same side of the pump body, the connecting surface is located between the support leg and the oil inlet, and the front of the connecting surface has space for the hose clamp body to be accommodated.

[0011] The beneficial effects of this utility model are that, under the premise that the oil cup's oil inlet is matched and connected with the pump body's oil inlet, the support block at the lower end of the support leg is additionally connected to the pump body for support, forming a stable positional relationship between the first support surface and the second support surface. The stable positional relationship is locked and connected by the hose clamp. The oil cup connection is not only convenient, but also does not require the use of a pin connection structure (no need to make a pin hole, no need for a pin to be inserted into the pin hole). The relative position of the oil cup and the pump body is stable after assembly. Attached Figure Description

[0012] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure.

[0015] Figure 3 for Figure 1 Three-dimensional view of the pump body.

[0016] Figure 4 for Figure 1 Three-dimensional view of the structure of the oil cup.

[0017] Figure 5 for Figure 1 Three-dimensional view of the structure of the throat clamp.

[0018] In the picture: 1. Pump body; 10. Oil inlet; 11. Boss; 12. Second support surface; 2. Oil cup; 20. Oil nozzle; 21. Support leg; 22. Support block; 221. First support surface; 222. Connecting surface; 223. Limiting protrusion; 3. Hose clamp; 30. Screw head; 31. Steel strip. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Referring to the accompanying drawings, the clutch master cylinder of the oil cup in this embodiment includes a pump body 1 and an oil cup 2. The pump body 1 is provided with an oil inlet 10, and the oil cup 2 is provided with an oil nozzle 20. The oil nozzle 20 is connected to the oil inlet 10 and is inserted into the oil inlet 10 (a sealing rubber sleeve 4 can be additionally configured). The oil inlet is a single-port (one opening) type, which is a mature technology.

[0021] The oil cup 2 also has a support leg 21, and the lower end of the support leg 21 has a support block 22. The lower side of the support block 22 is a first support surface 221. The pump body 1 has a second support surface 12, which corresponds to and matches the first support surface 221. In this mating structure, the oil cup 2 is supported on the pump body 1 by the support block 22 at the lower end of the support foot. The first support surface 221 and the second support surface 12 support each other, so that when the oil cup 2 and the pump body 1 are connected by the oil inlet 20 and the oil outlet 10, the support block 22 on the support foot can also provide additional support to the pump body 1, stabilizing the oil cup 2 and the pump body. The positional relationship between the support block 22 and the pump body 1 is as follows: the support block 22 is connected to the pump body 1 by a hose clamp 3 (or a clamp, a gripping clamp, etc.). The upper side of the support block 22 is the connecting surface 222 for the hose clamp 3 to connect. That is, the support block 22 is locked onto the pump body 1 by the clamp ring (such as a steel strip 31) of the hose clamp 3. The connection is locked after the positional relationship between the oil cup 2 and the pump body 1 is stable. The structure is relatively firm and the position of the oil cup 2 connected and assembled on the pump body 1 is relatively stable and not easy to tilt or move.

[0022] The clutch master cylinder of the oil cup, under the premise that the oil inlet 20 of the oil cup 2 is matched and connected with the oil inlet 10 of the pump body 1, is additionally supported by the support block 22 at the lower end of the support leg 21, which is connected to the pump body 1, forming a stable positional relationship between the first support surface 221 and the second support surface 12. The hose clamp 3 locks this stable positional relationship. The connection and assembly of the oil cup 2 is not only convenient, but also does not require the use of a pin connection structure (no need to make pin holes, no need for pins to be inserted into pin holes), and the processing cost is relatively reduced. The relative position of the oil cup 2 and the pump body 1 is stable after assembly.

[0023] Based on the above embodiments, the following optimizations or further explanations can be made.

[0024] For example, a boss 11 is provided on the pump body 1, and the second support surface 12 is located on the boss 11, which not only increases the strength of the support of the pump body 1, but also makes it easier to manufacture the second support surface 12.

[0025] Further optimization involves matching and abutting the first support surface 221 against the second support surface 12. The first support surface 221 and the second support surface 12 are both arc surfaces, which make the abutting position relatively stable and less prone to displacement. During assembly, the arc surfaces can be used to align smoothly and quickly.

[0026] The connecting surface 222 of the support block 22 can also be an arc surface to facilitate contact and tightening of the hose clamp 3. The support block 22 adopts a sheet-like or tile-like shape. The oil cup 2, oil nozzle 20, support leg 21, and support block 22 form an integrated plastic molding structure.

[0027] In addition, the support block 22 is provided with a limiting protrusion 223, which is located on the connecting surface 222. The hose clamp 3 is connected between the limiting protrusion 223 and the support leg 21 to ensure that the hose clamp 3 is not easy to detach from the connecting surface 222 after being tightened, and the connection is stable.

[0028] Among them, the oil inlet 10 and the second support surface 12 are located on the same side of the pump body 1, and the connecting surface 222 is located between the support leg 21 and the oil inlet 10. The front of the connecting surface 222 has space for the main body of the hose clamp 3 to be accommodated. For example, the screw head 30 of the hose clamp 3 can be accommodated in the front space of the connecting surface 222. The space enclosed between the oil cup 2 and the pump body 1 can be used to place the main body of the hose clamp 3 (such as the screw head 30). The main body of the hose clamp 3 is not easily loosened by bumps.

Claims

1. A clutch master cylinder with an oil cup, comprising a pump body (1) and an oil cup (2), wherein the pump body (1) is provided with an oil inlet (10) and the oil cup (2) is provided with an oil nozzle (20), the oil nozzle (20) being connected to the oil inlet (10) in a cooperative manner, characterized in that: The oil cup (2) also has a support leg (21), and the lower end of the support leg (21) has a support block (22), and the lower side of the support block (22) is the first support surface (221). The pump body (1) has a second support surface (12), which corresponds to and matches the first support surface (221). The support block (22) is connected to the pump body (1) by a hose clamp (3), and the upper side of the support block (22) is the connecting surface (222) for the hose clamp (3) to connect.

2. The clutch master cylinder with the oil distribution cup as described in claim 1, characterized in that: A boss (11) is provided on the pump body (1), and a second support surface (12) is located on the boss (11).

3. The clutch master cylinder with the oil distribution cup as described in claim 1, characterized in that: The first support surface (221) and the second support surface (12) are respectively arc surfaces, and the first support surface (221) is matched and attached to the second support surface (12).

4. The clutch master cylinder with the oil distribution cup as described in claim 1, characterized in that: The connecting surface (222) adopts a circular arc surface.

5. The clutch master cylinder with the oil distribution cup as described in claim 1, characterized in that: The support block (22) is provided with a limiting protrusion (223), which is located on the connecting surface (222). The hose clamp (3) is connected between the limiting protrusion (223) and the support leg (21).

6. The clutch master cylinder with the oil distribution cup as described in claim 1, characterized in that: The oil inlet (10) and the second support surface (12) are located on the same side of the pump body (1). The connecting surface (222) is located between the support leg (21) and the oil inlet (10). The front of the connecting surface (222) has space for the main body of the hose clamp (3) to be accommodated.

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