Clutch booster cylinder with limit alarm device

Abstract

The clutch booster air cylinder with the limit alarm device comprises an air cylinder body, a through hole penetrating through the inner side and the outer side of the air cylinder body is formed in the bottom of the air cylinder body, an alarm connector is connected to the position of the through hole, a push rod is arranged in the alarm connector and can move in the axial direction of the alarm connector, and the limit alarm device is arranged on the air cylinder body. The front end of the push rod extends into the air cylinder body through the through hole, the rear end of the push rod is connected with a magnet, and the rear end of the alarm connector is provided with a Hall inductive switch. When the piston in the air cylinder moves to a limit position, the piston can push the push rod, the push rod moves, the magnet gets close to the Hall sensing switch, the Hall sensing switch is activated, and an alarm signal is sent out.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile clutch boosters, in particular to a clutch booster cylinder with a limit alarm device. Background Art

[0002] The structure of an existing automobile clutch booster includes a shell and a cylinder. The shell is fixed to the cylinder by screws. A piston is arranged in the cylinder. A ball push rod is arranged in the shell. The piston is pushed by the ball push rod. When the piston is moving, it is necessary to avoid the piston moving to the extreme position (such as the piston touching the bottom of the cylinder, such as the piston moving beyond its extreme position), so an alarm device needs to be provided at the bottom of the cylinder.

[0003] How to set up the alarm device is a question that needs to be considered. Utility Model Content

[0004] In view of the problems pointed out in the background technology, the utility model proposes a clutch booster cylinder with a limit alarm device to solve the above technical problems.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A clutch booster cylinder with an extreme alarm device comprises a cylinder body, wherein the bottom of the cylinder body is provided with a through hole penetrating both inner and outer sides thereof, the through hole is connected to an alarm joint, a push rod is provided in the alarm joint, the push rod can move axially along the alarm joint, the front end of the push rod extends into the cylinder body through the through hole, the rear end of the push rod is connected to a magnet, and the rear end of the alarm joint is provided with a Hall induction switch.

[0007] The utility model is further configured that a fixed joint is connected in the through hole, a front end of the alarm joint is connected to the fixed joint, and a push rod is connected in the fixed joint and the alarm joint.

[0008] The utility model is further configured as follows: a sliding sleeve is provided in the fixed joint, the push rod passes through the sliding sleeve, a sealing ring is sleeved on the push rod, the sealing ring is located on the inner side of the fixed joint, the front end of the sliding sleeve abuts against the sealing ring, the rear end of the sliding sleeve abuts against the front end of the alarm joint, an annular boss is provided at the rear end of the push rod, the front side surface of the boss abuts against the rear side of the sliding sleeve, the rear end of the push rod is connected to a connecting rod, and a magnet is arranged at the rear end of the connecting rod.

[0009] The utility model is further configured such that the inner side of the rear end of the alarm joint is threadedly connected with an adjustment seat, the rear end of the connecting rod passes through the adjustment seat, a spring is sleeved on the connecting rod, one end of the spring abuts against the rear end of the push rod, and the other end of the spring abuts against the adjustment seat.

[0010] The utility model is further configured that the adjustment seat is provided with a hole for the push rod to pass through.

[0011] The utility model is further configured that the adjustment seat is provided with an operating groove for rotating the adjustment seat.

[0012] The utility model is further configured that the cross section of the sliding sleeve is a convex structure.

[0013] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0014] The clutch booster cylinder with the limit alarm device provided by the utility model, when the piston in the cylinder moves to the limit position, the piston pushes the push rod, the push rod moves, the magnet approaches the Hall induction switch, the Hall induction switch is activated, and an alarm signal is issued. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of the clutch booster of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the limit alarm device of the utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] For reference Figure 1-2 The utility model is described as follows:

[0020] Embodiment 1: A clutch booster cylinder with a limit alarm device comprises a cylinder body 1, and a through hole 2 penetrating the inner and outer sides of the cylinder body 1 is provided at the bottom thereof.

[0021] A fixing joint 7 is connected to the through hole 2, the front end of the fixing joint 7 extends into the through hole 2, the fixing joint 7 is fixedly connected to the side wall of the through hole 2, and the fixing joint 7 forms a sealed connection with the through hole 2. An axial hole is provided in the fixing joint 7 along its axial direction, and the axial hole is composed of multiple sections, and the axial holes are respectively axial hole 1 71, axial hole 2 72, and axial hole 3 73 from front to back, and the diameters of the axial hole 1 71, axial hole 2 72, and axial hole 3 73 gradually increase.

[0022] A sliding sleeve 8 is provided in the fixed joint 7, the outer diameter of the front end of the sliding sleeve 8 is smaller than the outer diameter of the rear end thereof, the inner diameter of the front end of the sliding sleeve 8 is smaller than the inner diameter of the rear end thereof, the outer diameter of the front end of the sliding sleeve 8 is equal to the diameter of the second shaft hole 72, the front end of the sliding sleeve 8 is connected to the second shaft hole 72, the outer diameter of the rear end of the sliding sleeve 8 is equal to the diameter of the third shaft hole 73, the rear end of the sliding sleeve 8 is connected to the third shaft hole 73, and the inner diameter of the front end of the sliding sleeve 8 is equal to the diameter of the first shaft hole 71.

[0023] The push rod 4 is connected to the fixed joint 7 and the sliding sleeve 8. The diameter of the push rod 4 is equal to the diameter of the shaft hole 1 71. The push rod 4 is connected to the shaft hole 1 71. The front end of the push rod 4 extends into the cylinder body 1, and the rear end of the push rod 4 extends into the rear end of the sliding sleeve 8. The rear end of the push rod 4 is provided with an annular boss 10. The diameter of the boss 10 is equal to the inner diameter of the rear end of the sliding sleeve 8. A sealing ring 9 is sleeved on the push rod 4. The sealing ring 9 is located on the inner side of the shaft hole 2 72, and the sealing ring 9 is located at the front end of the sliding sleeve 8.

[0024] The outer diameter of the front end of the alarm connector 3 is smaller than the outer diameter of its rear end, the inner diameter of the front end of the alarm connector 3 is smaller than the inner diameter of its rear end, the outer diameter of the front end of the alarm connector 3 is equal to the inner diameter of the shaft hole three 73, the alarm connector 3 is connected in the shaft hole three 73, and the front end of the alarm connector 3 is against the rear end of the sliding sleeve 8.

[0025] The rear end of the push rod 4 is connected with a connecting rod 11, and the connecting rod 11 extends to the rear end of the alarm connector 3, and the rear end of the connecting rod 11 is connected with a magnet 5. A spring 13 is sleeved on the connecting rod 11.

[0026] An internal thread is provided on the inner wall of the rear end of the alarm connector 3, and the inner side thread of the rear end of the alarm connector 3 is connected to a circular adjustment seat 12. The adjustment seat 12 is provided with a hole 14 for the push rod 4 to pass through, one end of the spring 13 is abutted against the rear end of the push rod 4, and the other end of the spring 13 is abutted against the adjustment seat 12. The adjustment seat 12 is provided with an operating groove 15 for rotating the adjustment seat 12, and the operating groove 15 is hexagonal.

[0027] A Hall sensor switch 6 is provided at the rear end of the alarm connector 3 .

[0028] The through hole 2, the first shaft hole 71, the second shaft hole 72, the third shaft hole 73, the sliding sleeve 8, the push rod 4, the connecting rod 11, the alarm connector 3, and the adjustment seat 12 are coaxially arranged.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clutch booster cylinder with a limit alarm device, comprising a cylinder body (1), characterized in that: The bottom of the cylinder body (1) is provided with a through hole (2) penetrating the inner and outer sides thereof, the through hole (2) is connected to an alarm connector (3), a push rod (4) is provided in the alarm connector (3), the push rod (4) can move along the axial direction of the alarm connector (3), the front end of the push rod (4) extends into the cylinder body (1) through the through hole (2), the rear end of the push rod (4) is connected to a magnet (5), and the rear end of the alarm connector (3) is provided with a Hall sensor switch (6).

2. A clutch booster cylinder with a limit alarm device according to claim 1, characterized in that: A fixed joint (7) is connected in the through hole (2), a front end of the alarm joint (3) is connected to the fixed joint (7), and a push rod (4) is connected between the fixed joint (7) and the alarm joint (3).

3. A clutch booster cylinder with a limit alarm device according to claim 2, characterized in that: The fixed joint (7) is provided with a sliding sleeve (8), the push rod (4) passes through the sliding sleeve (8), a sealing ring (9) is sleeved on the push rod (4), the sealing ring (9) is located on the inner side of the fixed joint (7), the front end of the sliding sleeve (8) abuts against the sealing ring (9), the rear end of the sliding sleeve (8) abuts against the front end of the alarm joint (3), the rear end of the push rod (4) is provided with an annular boss (10), the front side surface of the boss (10) abuts against the rear side of the sliding sleeve (8), the rear end of the push rod (4) is connected to a connecting rod (11), and the magnet (5) is arranged at the rear end of the connecting rod (11).

4. A clutch booster cylinder with a limit alarm device according to claim 3, characterized in that: The inner side of the rear end of the alarm connector (3) is threadedly connected to an adjustment seat (12), the rear end of the connecting rod (11) passes through the adjustment seat (12), a spring (13) is sleeved on the connecting rod (11), one end of the spring (13) abuts against the rear end of the push rod (4), and the other end of the spring (13) abuts against the adjustment seat (12).

5. A clutch booster cylinder with a limit alarm device according to claim 4, characterized in that: The adjustment seat (12) is provided with a hole (14) for the push rod (4) to pass through.

6. A clutch booster cylinder with a limit alarm device according to claim 4, characterized in that: The adjusting seat (12) is provided with an operating slot (15) for performing a rotation operation on the adjusting seat (12).

7. The clutch booster cylinder with a limit alarm device according to claim 3, characterized in that: The cross section of the sliding sleeve (8) is a convex structure.

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