A hand brake device for a vehicle

Abstract

The utility model relates to brake device technical field, and disclose a kind of automobile hand brake device, including mounting bracket, sleeve and send air extraction device, the both sides of sleeve are movably installed with connecting piece, fixedly installed with rubber organ case on connecting piece, the other side fixedly installed with fixed sheet of rubber organ case, fixedly installed with cable between two fixed sheets, fixedly installed with mounting cylinder on the side of fixed sheet away from sleeve, fixed block is provided on the mounting cylinder, fixedly installed with pull steel cable on the fixed block.The utility model is segmented cable and wear-resistant support ring, combined with closed sleeve and integrated heating and send air extraction device, realize the effect of easy maintenance, anti-icing and prolong the life of cable.

Description

Technical Field

[0001] This utility model relates to the field of braking device technology, specifically to a car handbrake device. Background Technology

[0002] The parking brake, commonly known as the handbrake, is designed to ensure the stability of a parked car. It is also an indispensable aid when starting on a slope. In addition, when the service brake fails, the parking brake can provide emergency braking or work together with the service brake to ensure driving safety. In most cases, the parking brake is installed behind the transmission or transfer case, but there are exceptions. Some cars choose to install it at the front of the rear drive axle input shaft, and some cars even combine the rear wheel brake and parking brake into one unit to perform the parking braking function.

[0003] Existing parking brake systems typically rely on the movement of a steel cable to adjust the rear brake's position. However, in practical applications, especially under adverse weather conditions, this design has certain limitations. For example, the steel cable may become difficult to operate due to icing, affecting the effective transmission of force. Furthermore, because the steel cable needs to undergo relative displacement with the sleeve during use, it will wear down over time, affecting its service life and potentially leading to higher maintenance costs and safety hazards. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art and to propose an automobile handbrake device that achieves the effects of easy maintenance, anti-icing, and extended cable life.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A car handbrake device includes a mounting bracket, a sleeve, and a ventilation device. Connecting plates are movably mounted on both sides of the sleeve. A rubber bellows cover is fixedly mounted on the connecting plate. A fixing plate is fixedly mounted on the other side of the rubber bellows cover. A cable is fixedly mounted between the two fixing plates. A mounting cylinder is fixedly mounted on the side of the fixing plate away from the sleeve. A fixing block is provided on the mounting cylinder. A pull steel cable is fixedly mounted on the fixing block.

[0007] Preferably, two of the pulling cables on one side are fixedly connected, and two of the pulling cables on the other side are connected to the braking system.

[0008] Preferably, a rotating external threaded cylinder is rotatably mounted on the side of the connecting piece facing the fixing piece, and the sleeve has an internal thread groove adapted to the rotating external threaded cylinder at the corresponding position.

[0009] Preferably, the fixing block has a slot, the mounting cylinder has an insertion hole, and an insertion rod is movably mounted on the mounting cylinder, with the insertion rod threaded into the slot and the insertion hole.

[0010] Preferably, the insertion rod has threads on the side facing the mounting cylinder, and a mounting block is fixedly installed on the mounting cylinder. The mounting block has a mounting thread groove inside that is threaded to engage with the insertion rod.

[0011] Preferably, a positioning block is fixedly installed on the fixing block, and the mounting cylinder has a positioning slot that matches the positioning block at the corresponding position.

[0012] Preferably, the air supply and exhaust device is equipped with a heating device, and a conveying pipe is fixedly installed at the output end of the air supply and exhaust device, and the conveying pipe is connected to both sleeves.

[0013] Preferably, wear-resistant support rings are fixedly installed at equal intervals on the cable, and the wear-resistant support rings directly abut against the inner wall of the cable.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention employs a segmented design, allowing the cable inside the sleeve to be detachably connected to the pull-out steel cables at both ends. This design not only facilitates individual replacement of specific sections according to different usage scenarios, thereby accelerating maintenance and reducing costs, but also ensures that the cable remains within the enclosed space inside the sleeve, preventing the effects of moisture and dust. Furthermore, the design integrates a heating device and a ventilation system, which can deliver hot air into the enclosed space to effectively prevent icing under cold conditions, ensuring the stable operation of the handbrake system. To further protect the cable and extend its service life, wear-resistant support rings are fixedly installed at equal intervals on the cable. These support rings directly contact the cable, reducing frictional damage between the cable and the inner wall of the sleeve, thus enhancing the cable's durability and performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a car handbrake device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram showing the location of the internal thread groove in an automobile handbrake device according to this utility model.

[0018] Figure 3 This is a schematic diagram of the installation position of the wear-resistant support ring of an automobile handbrake device proposed in this utility model;

[0019] Figure 4 This is a schematic diagram showing the location of the threaded groove for the installation of a car handbrake device according to this utility model.

[0020] In the diagram: 1. Mounting bracket; 2. Pulling steel cable; 3. Fixing block; 4. Mounting cylinder; 5. Fixing plate; 6. Rubber bellows cover; 7. Connecting plate; 8. Cable; 9. Sleeve; 10. Ventilation device; 11. Heating device; 12. Conveying pipe; 13. Rotating external threaded cylinder; 14. Internal threaded groove; 15. Wear-resistant support ring; 16. Positioning groove; 17. Positioning block; 18. Slot; 19. Insertion hole; 20. Insert rod; 21. Mounting block; 22. Mounting threaded groove. Detailed Implementation

[0021] 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 present utility model, and not all embodiments.

[0022] Please see Figures 1 to 4 A car handbrake device includes a mounting bracket 1, a sleeve 9, and a ventilation device 10. Connecting pieces 7 are movably mounted on both sides of the sleeve 9. A rubber bellows cover 6 is fixedly mounted on the connecting piece 7, and a fixing piece 5 is fixedly mounted on the other side of the rubber bellows cover 6. A cable 8 is fixedly mounted between the two fixing pieces 5. The rubber bellows cover 6 not only protects the internal cable 8 from the influence of the external environment, but also allows a certain degree of expansion and contraction to accommodate the movement of the connecting piece 7 under the handbrake system.

[0023] The cable 8 is always in the enclosed space inside the sleeve 9 and the two rubber bellows covers 6, which can prevent the cable 8 inside the sleeve 9 from being exposed to the air and prevent moisture and dust from entering the sleeve 9 and affecting the transmission effect of the equipment in various scenarios (such as icing).

[0024] A mounting cylinder 4 is fixedly installed on the side of the fixing plate 5 away from the sleeve 9. A fixing block 3 is provided on the mounting cylinder 4, and a pulling steel cable 2 is fixedly installed on the fixing block 3.

[0025] Pulling the steel cable 2 moves the fixing plate 5, which in turn moves the cable 8, thus achieving the effect of motion transmission and enabling or canceling the parking brake operation.

[0026] Two pull cables 2 on one side are fixedly connected to the mounting frame 1, and two pull cables 2 on the other side are connected to the braking system.

[0027] Two pull cables 2 on one side are fixedly connected to components of the mounting frame 1. The mounting frame 1 is connected to the handbrake system. The rotation of the handbrake can move the mounting frame 1. Since this part is existing technology, it will not be described in detail here. The two pull cables 2 on one side move synchronously with the two pull cables 2 on the other side under the transmission of the cable 8. The design ensures the effective transmission of signals.

[0028] The connecting piece 7 is rotatably mounted with a rotating external threaded cylinder 13 on the side facing the fixing piece 5, and the sleeve 9 has an internal thread groove 14 that matches the rotating external threaded cylinder 13 at the corresponding position.

[0029] By rotating the external threaded cylinder 13 and the internal threaded groove 14, the sleeve can be securely installed, thus achieving a sealing effect. Rotating the external threaded cylinder 13 in the opposite direction can expose the space inside the sleeve 9, making it convenient for maintenance and replacement.

[0030] The fixing block 3 has a slot 18, the mounting cylinder 4 has an insertion hole 19, and the mounting cylinder 4 has a movable insertion rod 20, which is threadedly engaged with the slot 18 and the insertion hole 19.

[0031] The slot 18 on the fixing block 3, the insertion hole 19 on the mounting cylinder 4, and the movable insertion rod 20 cooperate to simplify the installation and disassembly process, allowing the fixing block 3 and the mounting cylinder 4 to quickly establish or cancel the connection, thereby facilitating installation, maintenance, and replacement.

[0032] The mounting cylinder 4 has threads on one side, and a mounting block 21 is fixedly mounted on the mounting cylinder 4. The mounting block 21 has a mounting thread groove 22 that is threaded to the insertion rod 20.

[0033] By engaging the threads on the insertion rod 20 with the internal mounting groove 22 of the mounting block 21, the insertion rod 20 can be stably positioned inside the mounting cylinder 4 and the fixing block 3, thereby ensuring a secure fixation effect.

[0034] A positioning block 17 is fixedly installed on the fixing block 3, and the mounting cylinder 4 has a positioning slot 16 that matches the positioning block 17 at the corresponding position.

[0035] The design of positioning block 17 and positioning groove 16 further enhances the stability and accuracy between mounting cylinder 4 and fixing block 3, ensuring that the two can be accurately connected.

[0036] A heating device 11 is installed on the air supply and exhaust device 10, and a conveying pipe 12 is fixedly installed at the output end of the air supply and exhaust device 10. The conveying pipe 12 is connected to both sleeves 9.

[0037] The exhaust fan 10 is used in conjunction with the heating fan 11. It can deliver hot air into the sleeve 9 through the delivery pipe 12 to prevent icing caused by cold weather and ensure the normal operation of the handbrake system.

[0038] Wear-resistant support rings 15 are fixedly installed at equal intervals on the cable 8. The wear-resistant support rings 15 directly abut against the inner wall of the cable 8, which can effectively reduce friction damage and extend service life.

[0039] The working process of this utility model is as follows: When the driver operates the handbrake, the handbrake rotates and drives the mounting frame 1 to move. Since the two pulling steel cables 2 on one side are fixedly connected to the mounting frame 1 component, the movement of the mounting frame 1 will pull the two pulling steel cables 2.

[0040] The movement of the pulling steel cable 2 causes the fixing plate 5 to move. Since the fixing plate 5 is fixedly connected to the cable 8, the cable 8 also moves accordingly. At the same time, the two pulling steel cables 2 on the other side move synchronously under the transmission of the cable 8. The two pulling steel cables 2 on the other side are connected to the braking system, thereby realizing the activation or deactivation of the parking brake.

[0041] During this process, the connecting piece 7 moves under the handbrake system. The rubber bellows cover 6 not only protects the internal cable 8 from the external environment but also allows for a certain degree of expansion and contraction to accommodate the movement of the connecting piece 7. The cable 8 remains within the enclosed space inside the sleeve 9 and the two rubber bellows covers 6, preventing moisture and dust from entering and affecting the transmission effect.

[0042] If it is necessary to perform maintenance or replace the cable 8 inside the sleeve 9, the external threaded cylinder 13 can be rotated in the opposite direction to separate it from the internal threaded groove 14 on the sleeve 9, thus exposing the internal space of the sleeve 9.

[0043] When installing and removing the fixing block 3 and the mounting cylinder 4, the connection can be quickly established or canceled by the cooperation of the insertion rod 20 with the slot 18, the insertion hole 19 and the internal mounting thread groove 22 of the mounting block 21.

[0044] In cold weather, the exhaust fan 10 works in conjunction with the heating fan 11 to deliver hot air into the sleeve 9 through the delivery pipe 12, preventing ice formation inside the sleeve 9 and ensuring the normal operation of the handbrake system.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car handbrake device, comprising a mounting bracket (1), a sleeve (9), and a ventilation / exhaust device (10), characterized in that, Connecting pieces (7) are movably installed on both sides of the sleeve (9). A rubber bellows cover (6) is fixedly installed on the connecting piece (7). A fixing piece (5) is fixedly installed on the other side of the rubber bellows cover (6). A cable (8) is fixedly installed between the two fixing pieces (5). An installation cylinder (4) is fixedly installed on the side of the fixing piece (5) away from the sleeve (9). A fixing block (3) is provided on the installation cylinder (4). A pulling steel cable (2) is fixedly installed on the fixing block (3).

2. The automobile handbrake device according to claim 1, characterized in that, Two of the pull cables (2) on one side are fixedly connected to the mounting bracket (1), and two of the pull cables (2) on the other side are connected to the braking system.

3. The automobile handbrake device according to claim 1, characterized in that, The connecting piece (7) is rotatably mounted with a rotating external threaded cylinder (13) on the side facing the fixing piece (5), and the sleeve (9) has an internal threaded groove (14) adapted to the rotating external threaded cylinder (13) at the corresponding position.

4. A car handbrake device according to claim 1, characterized in that, The fixing block (3) has a slot (18) and the mounting cylinder (4) has a socket (19). A plug rod (20) is movably mounted on the mounting cylinder (4). The plug rod (20) is threadedly engaged with the slot (18) and the socket (19).

5. A car handbrake device according to claim 4, characterized in that, The insertion rod (20) has threads on the side facing the mounting cylinder (4), and a mounting block (21) is fixedly installed on the mounting cylinder (4). The mounting block (21) has a mounting thread groove (22) that is threaded to the insertion rod (20).

6. A car handbrake device according to claim 1, characterized in that, A positioning block (17) is fixedly installed on the fixing block (3), and the mounting cylinder (4) has a positioning block (17) and a corresponding positioning groove (16) at the corresponding position.

7. A car handbrake device according to claim 1, characterized in that, The air supply and exhaust device (10) is equipped with a heating device (11), and a conveying pipe (12) is fixedly installed at the output end of the air supply and exhaust device (10). The conveying pipe (12) is connected to both sleeves (9).

8. A car handbrake device according to claim 1, characterized in that, Wear-resistant support rings (15) are fixedly installed at equal intervals on the cable (8), and the wear-resistant support rings (15) directly abut against the inner wall of the cable (8).

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