Brake locking and unlocking mechanism

Abstract

The application discloses a brake locking and unlocking mechanism, which comprises a camshaft, a rocker arm connecting rod shaft, a pressing shaft, a sliding block, a tumb pin, a compression spring guide shaft, a card, a torsion spring, a rotating shaft, a supporting shaft A, a large bearing, a supporting sheet and a support, characterized in that the camshaft is respectively provided with a rocker arm and a large bearing at both ends, the rocker arm is hinged to the connecting rod shaft, the connecting rod shaft is hinged to the pressing shaft, the pressing shaft is inserted into the support and connected with the sliding block, the sliding block is provided with the tumb pin, the support is respectively provided with the compression spring at the upper end and the lower end, the compression spring is inserted into the guide shaft and screwed into the nut cap, and the support is provided with the card, the torsion spring and the supporting sheet which are inserted into the rotating shaft and the supporting shaft A. The application can keep the brake locking state after the operating force is cancelled, and the unlocking function can be realized by operating again, and corresponding brake locking and unlocking electric signals are output simultaneously.

Description

Technical Field

[0001] This invention belongs to the field of braking technology, and specifically relates to a brake locking and unlocking mechanism. Background Technology

[0002] Brake locking and unlocking mechanisms are common auxiliary mechanisms used in brake control systems, widely applied in industries such as aerospace, marine, and automotive. Traditional brake locking and unlocking mechanisms require continued input of force after a brake locking command is issued, and enter the unlocked state upon release of the force. This makes it difficult to meet the functional requirements of certain special situations, namely, the inability to maintain the brake lock state after the force is released, requiring further operation to unlock. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a brake locking and unlocking mechanism that can maintain the brake lock state after the operating force is removed, and can only realize the unlocking function by operating again, while simultaneously outputting corresponding brake locking and unlocking electrical signals.

[0004] The objective of this invention and the solution to its main technical problem are achieved by the following technical solutions: A brake locking and unlocking mechanism of the present invention includes a camshaft, a rocker arm connecting rod shaft, a pressing shaft, a slider, a top pin, a compression spring guide shaft, a card, a torsion spring, a rotating shaft, a support shaft A, a large bearing, a support plate, and a bracket. The camshaft is characterized by having a rocker arm and a large bearing mounted at both ends. The rocker arm is hinged to the connecting rod shaft, which is hinged to the pressing shaft. The pressing shaft is inserted into the bracket and connected to the slider. A top pin is mounted on the slider. Compression springs are inserted into the guide shaft and screwed into nuts at the upper and lower ends of the bracket. The bracket holds the card, the torsion spring, and the support plate, which are then inserted into the rotating shaft and support shaft A.

[0005] The rocker arm is fixedly mounted on the camshaft.

[0006] A support shaft B is mounted on the connecting rod shaft, and the connecting rod shaft rotates around the support shaft B.

[0007] The pressing shaft can drive the slider to move linearly on the bracket.

[0008] The card can rotate on a rotating axis.

[0009] The card has a card slot.

[0010] A micro switch is mounted on the side of the camshaft.

[0011] Compared with existing technologies, this invention has significant advantages. As can be seen from the above technical solution: rocker arms and large bearings are installed at both ends of the camshaft. The rocker arms are hinged to a connecting rod shaft, which in turn is hinged to a pressing shaft. The pressing shaft is inserted into a bracket and connected to a slider. A top pin is installed on the slider. Compression springs are inserted into the guide shaft at the upper and lower ends of the bracket and screwed in with nuts. A card, a torsion spring, and a support plate are placed on the bracket and inserted into the rotating shaft and support shaft A. The input force for brake locking and unlocking is transmitted to the camshaft through a transmission mechanism. The camshaft rotates, triggering a microswitch on the boss to output a brake signal. When the camshaft rotates, the rocker arms rotate along with it, driving the connecting rod shaft to rotate. The rotating connecting rod shaft drives the pressing shaft to move linearly. The pressing shaft, slider, and top pin are fixed together, pressing the compression spring to move linearly along the guide shaft. When the top pin presses the card, the card overcomes the force of the torsion spring and rotates around the rotating shaft. The top pin then moves into the locking groove of the card, achieving brake locking. At this time, the input force can be canceled, and the mechanism will still be in the locked state. As the input force continues to increase, the camshaft continues to rotate, driving the pressing shaft to continue its linear motion. The top pin then moves into the card's unlocking slot, and the torsion spring resets the card. After the camshaft's torque is released, the top pin resets under the action of the compression spring, achieving unlocking. Simultaneously, the boss on the camshaft separates from the microswitch, outputting an unlocking signal. This ensures that the brake remains locked even after the input force is released, requiring further operation to unlock, and simultaneously outputs corresponding brake locking and unlocking electrical signals. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an exploded view of the present invention.

[0013] Markings in the figure 1. Camshaft, 2. Microswitch, 3. Rocker arm, 4. Linkage shaft, 5. Press shaft, 6. Slider, 7. Top pin, 8. Compression spring, 9. Guide shaft, 10. Card, 11. Torsion spring, 12. Rotary shaft, 13. Support shaft A, 14. Large bearing, 15. Support shaft B, 16. Support plate, 17. Bracket. Detailed Implementation

[0014] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed account of the specific implementation methods, structures, features, and effects of the present invention.

[0015] A brake locking and unlocking mechanism of the present invention includes a camshaft 1, a micro switch 2, a rocker arm 3, a connecting rod shaft 4, a pressing shaft 5, a slider 6, a top pin 7, a compression spring 8, a guide shaft 9, a card 10, a torsion spring 11, a rotating shaft 12, a support shaft A13, a large bearing 14, a support shaft B15, a support plate 16, and a bracket 17. The camshaft 1 has a rocker arm 3 and a large bearing 14 mounted at both ends. The rocker arm 3 is hinged to the connecting rod shaft 4, and the connecting rod shaft 4 is hinged to the pressing shaft 5. The pressing shaft 5 is inserted into the bracket 17 and connected to the slider 6. The bracket 17 is equipped with a top pin 7. Compression springs 8 are inserted into the upper and lower ends of the bracket 17, and guide shafts 9 are screwed in with nuts. Cards 10, torsion springs 11, and support plates 16 are placed on the bracket 17 and inserted into the rotating shaft 12 and support shaft A13. The rocker arm 3 is fixedly installed on the camshaft 1. A support shaft B15 is installed on the connecting rod shaft 4. The connecting rod shaft 4 rotates around the support shaft B15. Pressing the shaft 5 can drive the slider 6 to move linearly on the bracket 17. Cards 10 can rotate on the rotating shaft 12. Cards 10 are provided with slots. A micro switch 2 is installed on the side of the camshaft 1.

[0016] In use, the entire brake locking and unlocking mechanism is fixed to a large bracket. This bracket supports bracket 17 and support shaft B15. The large bearing 14 and the small bearing of support shaft B15 are connected to the large bracket. The input force for brake locking and unlocking is transmitted to the rotation of camshaft 1 through a transmission mechanism. Pulling the handbrake handle causes the handbrake lever to pull the camshaft 1 to rotate, triggering the microswitch 2 on the boss to switch and output a brake signal. When camshaft 1 rotates, rocker arm 3 rotates along with it. Rocker arm 3 drives connecting rod shaft 4 to rotate, and connecting rod shaft 4 rotates to drive pressing shaft 5 to move linearly. Pressing shaft 5, slider 6, and top pin 7 are fixed together to compress spring 8, which moves linearly along guide shaft 9. When the top pin 7 presses the card 10, the card 10 rotates around the rotating shaft 12 against the force of the torsion spring 11. The top pin 7 then moves into the locking groove of the card 10, achieving brake locking. At this time, the input operating force can be canceled, and the mechanism will still be in the locked state. When the input operating force is increased again, the camshaft 1 continues to rotate, driving the pressing shaft 5 to continue linear motion. The top pin 7 will move into the unlocking groove of the card 10, and the torsion spring 11 will reset the card 10. After the rotational torque of the camshaft 1 is released, the top pin 7 resets under the action of the compression spring 8, achieving unlocking. At the same time, the boss on the camshaft 1 separates from the micro switch, outputting an unlocking signal.

[0017] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A brake locking and unlocking mechanism, comprising a camshaft (1), a rocker arm (3), a connecting rod shaft (4), a pressing shaft (5), a slider (6), a top pin (7), a compression spring (8), a guide shaft (9), a card (10), a torsion spring (11), a rotating shaft (12), a support shaft A (13), a large bearing (14), a support plate (16), and a bracket (17), characterized in that; A rocker arm (3) and a large bearing (14) are respectively installed at both ends of the camshaft (1). The rocker arm (3) is hinged to the connecting rod shaft (4). The connecting rod shaft (4) is hinged to the pressing shaft (5). The pressing shaft (5) is inserted into the bracket (17) and connected to the slider (6). A top pin (7) is installed on the slider (6). Compression springs (8) are placed at the upper and lower ends of the bracket (17), and a guide shaft (9) is inserted and screwed in with a nut. The bracket (17) holds a card (10) and a torsion spring (11). The support plate ( 16) Insert the rotating shaft (12) and the support shaft A (13). The rocker arm (3) is fixedly installed on the camshaft (1). The support shaft B (15) is installed on the connecting shaft (4). The connecting shaft (4) rotates around the support shaft B (15). The pressing shaft (5) can drive the slider (6) to move linearly on the bracket (17). The card (10) can rotate on the rotating shaft (12). The card (10) is provided with a card slot. When the camshaft (1) rotates... When the rocker arm (3) moves, it rotates together with the rocker arm (3), which drives the connecting rod shaft (4) to rotate. The rotation of the connecting rod shaft (4) drives the pressing shaft (5) to move in a straight line. The pressing shaft (5), the slider (6), and the top pin (7) are fixed together. The pressing compression spring (8) moves in a straight line along the guide shaft (9). When the top pin (7) presses the card (10) to move, the card (10) overcomes the force of the torsion spring (11) and rotates around the rotation axis (12). The top pin (7) then moves to the card. (10) locks the brake in the locking groove. When the input force is canceled, the mechanism will still be locked. When the input force is increased, the camshaft (1) continues to rotate, driving the pressing shaft (5) to continue to move in a straight line. The top pin (7) will move into the unlocking groove of the card (10). The torsion spring (11) resets the card (10). After the rotational torque of the camshaft (1) is released, the top pin (7) resets under the action of the compression spring (8), thus unlocking.

2. The brake locking and unlocking mechanism as described in claim 1, characterized in that; A micro switch (2) is mounted on the side of the camshaft (1).

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