Low-resistance automobile brake cable

Abstract

The utility model discloses a low-resistance automobile brake cable which comprises a cable steel core, a connecting terminal and an outer sheath, lubricating grease is filled in the outer sheath, external thread bushings movably arranged on the surface of the cable steel core in a sleeved mode are fixedly installed at the two ends of the outer sheath respectively, and internal thread bushings movably arranged on the surface of the cable steel core in a sleeved mode are connected to the ends of the external thread bushings in a threaded mode. A packing wrapping the surface of the inhaul cable steel core is arranged in the internal thread sleeve; supply piston pipes filled with lubricating grease are fixedly installed on the surfaces, close to the two ends, of the outer sheath, one end of each supply piston pipe is communicated with an inner cavity of the outer sheath through a connecting nozzle, and a sealing jackscrew is connected to a pipe opening in the other end of each supply piston pipe in a threaded mode. The outer sheath is filled with the lubricating grease, so that the effect of reducing the resistance to the steel core of the inhaul cable is achieved; lubricating grease in the supplementing piston pipe can gradually flow into the outer sheath to be supplemented under the action of the pressure spring and the pressure piston, and the sufficient lubricating effect in the outer sheath is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive cables, in particular to a low-resistance automotive brake cable. Background Technique

[0002] The automotive parking brake cable is an important component of the automotive parking device. The working principle of the parking device is to tighten the brake of the brake drum or brake disc by pulling the cable, so as to achieve the effect of parking braking the vehicle. During the use of the automotive brake cable, it is necessary to ensure that it is subject to less resistance. Otherwise, with the increase of use time, aging, dust and other factors, the resistance of the cable increases, the reset after braking is blocked, and the reset is difficult, affecting the use. Therefore, our company designed and proposed a low-resistance automotive brake cable. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the utility model provides a low-resistance automotive brake cable, which is used to achieve the effect of reducing the resistance suffered by the automotive brake cable.

[0004] To solve the above technical problems, the utility model provides the following technical solutions:

[0005] The low-resistance automotive brake cable includes a cable steel core, connection terminals fixedly connected to both ends of the cable steel core, and an outer sheath movably sleeved on the surface of the cable steel core. The outer sheath is filled with lubricating grease. Outer threaded sleeves movably sleeved on the surface of the cable steel core are fixedly installed at both ends of the outer sheath. The end of the outer threaded sleeve is threadedly connected to an inner threaded sleeve movably sleeved on the surface of the cable steel core, and a packing wrapped on the surface of the cable steel core is arranged in the inner threaded sleeve;

[0006] Supply piston tubes filled with lubricating grease are fixedly installed on the surfaces of both ends of the outer sheath close to the ends. One end of the supply piston tube is communicated with the inner cavity of the outer sheath through a connecting nozzle. A sealing top screw is threadedly connected to the pipe orifice at the other end of the supply piston tube. A pressure piston is arranged at one end of the supply piston tube close to the sealing top screw, and a pressure spring is arranged between the pressure piston and the sealing top screw.

[0007] Preferably, the supply piston tube is arranged parallel to the outer sheath, and the supply piston tube is fixedly installed on the surface of the outer sheath through a hose clamp.

[0008] Preferably, the connecting nozzle and the outer sheath are integrally formed by fusion welding.

[0009] Preferably, the connecting nozzle is L-shaped, an anti-corrosion rubber seal plug is clamped and installed at one end of the supply piston tube corresponding to the connecting nozzle, and the connecting nozzle is inserted into the anti-corrosion rubber seal plug.

[0010] Preferably, one end of the pressure spring is embedded inside the pressure piston, and a positioning groove is provided at the position of the sealing set screw corresponding to the pressure spring.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By providing external thread sleeves, internal thread sleeves and packing at both ends of the outer sheath, the sealing effect at both ends is increased without affecting the movement of the cable steel core. By filling lubricating grease inside the outer sheath, the effect of reducing the resistance received by the cable steel core is achieved;

[0013] 2. When the cable steel core is used, it will move left and right and extend out of the outer sheath. As the use time increases, the lubricating grease will be consumed. Under the action of the pressure spring and the pressure piston, the lubricating grease in the supply piston tube will gradually flow into the outer sheath for replenishment, ensuring sufficient lubricating effect inside the outer sheath, not only reducing the friction received by the cable steel core, but also effectively preventing rust and extending the service life. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 is a schematic diagram of the structure at the corresponding position of the external thread sleeve of the utility model;

[0016] Figure 3 is a cross-sectional view of the structure at the corresponding position of the external thread sleeve of the utility model.

[0017] In the figure: 1. Cable steel core; 2. Connecting terminal; 3. Outer sheath; 4. External thread sleeve; 5. Internal thread sleeve; 6. Packing; 7. Supply piston tube; 8. Connecting nozzle; 9. Sealing set screw; 10. Pressure piston; 11. Pressure spring; 12. Hose clamp; 13. Anti-corrosion rubber sealing plug. Specific Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0019] Such as Figures 1 - 3As shown in the figure, the utility model provides a technical solution: a low-resistance vehicle brake cable, which includes a cable steel core 1, connection terminals 2 fixedly connected to both ends of the cable steel core 1, and an outer sheath 3 movably sleeved on the surface of the cable steel core 1. The outer sheath 3 is filled with lubricating grease to reduce the frictional resistance suffered by the movement of the cable steel core 1, avoid jamming, slow reset and non-reset. At both ends of the outer sheath 3, outer threaded sleeves 4 movably sleeved on the surface of the cable steel core 1 are fixedly installed. The end of the outer threaded sleeve 4 is threadedly connected with an inner threaded sleeve 5 movably sleeved on the surface of the cable steel core 1, and a packing 6 wrapped on the surface of the cable steel core 1 is arranged in the inner threaded sleeve 5;

[0020] On the surfaces of both ends of the outer sheath 3 close to the two ends, supply piston pipes 7 filled with lubricating grease are fixedly installed. The supply piston pipes 7 are arranged parallel to the outer sheath 3. The supply piston pipes 7 are fixedly installed on the surface of the outer sheath 3 through hose clamps 12. The supply piston pipes 7 are used to supply lubricating grease between the outer sheath 3 and the cable steel core 1 to achieve the effect of continuous lubrication;

[0021] One end of the supply piston pipe 7 is connected to the inner cavity of the outer sheath 3 through a connecting nozzle 8. The connecting nozzle 8 and the outer sheath 3 are integrally formed by fusion welding to ensure connection stability and sealing performance. The connecting nozzle 8 is L-shaped. An anti-corrosion rubber seal plug 13 is clamped and installed at one end of the supply piston pipe 7 corresponding to the connecting nozzle 8. The connecting nozzle 8 is inserted into the anti-corrosion rubber seal plug 13, which is convenient for assembly, replacement and maintenance;

[0022] The inner thread of the other end of the supply piston pipe 7 is connected with a sealing set screw 9. A pressure piston 10 is arranged at one end of the supply piston pipe 7 close to the sealing set screw 9. A pressure spring 11 is arranged between the pressure piston 10 and the sealing set screw 9. One end of the pressure spring 11 is embedded in the interior of the pressure piston 10. A positioning groove is arranged at the position of the sealing set screw 9 corresponding to the pressure spring 11, which is convenient for pulling the pressure spring 11 to disassemble the pressure piston 10, so as to conveniently add lubricating grease into the supply piston pipe 7.

[0023] Working principle:

[0024] The connection terminals 2 at both ends of the cable steel core 1 are respectively connected to the control end and the execution end of the vehicle parking brake. Lubricating grease is injected into the outer sheath 3 through the connecting nozzle 8. While injecting the lubricating grease, the cable steel core 1 is pulled and moved left and right to facilitate the lubricating grease to enter the outer sheath 3. Under the lubricating action of the lubricating grease, the frictional resistance suffered by the cable steel core 1 is reduced, and at the same time, air is isolated to achieve the anti-rust effect;

[0025] Remove the sealing setscrew 9, pressure spring 11 and pressure piston 10, inject lubricating grease into the supply piston tube 7, connect the anti-corrosion rubber seal plug 13 of the supply piston tube 8 to the connecting nozzle 8, and fix and install the supply piston tube 7 on the outer sheath 3 through the hose clamp 12. After installing the pressure piston 10, pressure spring 11 and sealing setscrew 9, the pressure piston 10 can push the lubricating grease in the supply piston tube 7 to automatically supply to the outer sheath 3, achieving the effect of continuous lubrication.

[0026] It should be noted that in this text, terms such as "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Low-resistance automotive brake cable, comprising a cable steel core (1), connection terminals (2) fixedly connected to both ends of the cable steel core (1), and an outer sheath (3) movably sleeved on the surface of the cable steel core (1), characterized in that: The outer sheath (3) is filled with lubricating grease. At both ends of the outer sheath (3), externally threaded sleeves (4) that are movably sleeved on the surface of the cable steel core (1) are fixedly installed. The end of the externally threaded sleeve (4) is threadedly connected to an internally threaded sleeve (5) that is movably sleeved on the surface of the cable steel core (1), and a packing (6) that wraps around the surface of the cable steel core (1) is arranged inside the internally threaded sleeve (5). On the surfaces of the outer sheath (3) near both ends, supply piston tubes (7) filled with lubricating grease are fixedly installed. One end of the supply piston tube (7) is communicated with the inner cavity of the outer sheath (3) through a connecting nozzle (8). A sealing set screw (9) is threadedly connected to the pipe orifice at the other end of the supply piston tube (7). A pressure piston (10) is arranged at one end of the supply piston tube (7) near the sealing set screw (9), and a pressure spring (11) is arranged between the pressure piston (10) and the sealing set screw (9).

2. The low-resistance vehicle brake cable according to claim 1, characterized in that: The supply piston tube (7) is arranged parallel to the outer sheath (3), and the supply piston tube (7) is fixedly installed on the surface of the outer sheath (3) through a hose clamp (12).

3. The low-resistance vehicle brake cable according to claim 1, wherein: The connecting nozzle (8) and the outer sheath (3) are integrally formed by fusion welding.

4. The low-resistance vehicle brake cable according to claim 1, characterized in that: The connecting nozzle (8) is in an L shape, and an anti-corrosion rubber sealing plug (13) is snap-fitted at one end of the supply piston tube (7) corresponding to the connecting nozzle (8), and the connecting nozzle (8) is inserted into the anti-corrosion rubber sealing plug (13).

5. The low-resistance vehicle braking cable according to claim 1, wherein: One end of the pressure spring (11) is embedded inside the pressure piston (10), and a positioning groove is arranged at the position of the sealing set screw (9) corresponding to the pressure spring (11).

Images