Automobile inhaul cable sealing structure

Abstract

The invention belongs to the technical field of automobile wire drawing, and particularly relates to an automobile inhaul cable sealing structure which comprises a zinc alloy pin and a multi-strand steel wire, one end of the multi-strand steel wire is fixedly connected with the zinc alloy pin, a zinc alloy pin sheath is arranged on the outer side of the zinc alloy pin, and a multi-strand steel wire rope plastic coating layer is arranged on the outer surface of the multi-strand steel wire in an injection molding mode. The casing pipe is movably sleeved on the multi-strand steel wire rope plastic coating layer, the multi-strand steel wire rope moves in the casing pipe in a limited mode, a dustproof cap is sleeved between the casing pipe and the zinc alloy pin protective sleeve, and the protective pipe is sleeved on the outer side of the casing pipe. According to the technical scheme, the door lock inhaul cable sealing structure has no influence on connection of a door lock structure, inhaul cable sealing has no influence on the opening and closing stroke, the structure meets the two requirements of automobile refitting and production line assembling at the same time, the sealing performance and the durability performance are met, the inhaul cable using environment is fully considered, and the door lock inhaul cable sealing structure can adapt to the engine compartment, automobile door and automobile body side wall metal plate environment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of vehicle pull wires, and particularly relates to a sealing structure of a vehicle pull wire. BACKGROUND

[0002] With the development of the times, people pay more and more attention to the safety, reliability and comfort of automobiles, and require that the opening and closing force value is small, and the waterproof and corrosion resistance is strong. In the design and production of the opening and closing system of the automobile, we should not only meet the requirements of regulations, but also meet the comfort needs of customers, and also need to investigate the cases of vehicle opening and closing problems, and continuously enrich the vehicle use conditions and related climate environment through the arrangement and screening of big data, so as to maximize the quality requirements of vehicle consumers.

[0003] The vehicle pull wire has a wide range of applications, and its typical functions are opening of the automobile door lock, opening operation of the cover, and opening of the oil filler cap. The pull wire moves back and forth in the sleeve, which is easy to produce dust and water corrosion. In addition, under the condition of high temperature in the engine compartment, the corrosion speed of the pull wire is increased. Whether the door lock in the vehicle or the engine compartment cover lock is opened, the pull wire will be under stress and be unlocked. In the case of pull wire corrosion, the pull wire friction resistance is easy to increase and break.

[0004] The existing vehicle opening and closing pull wire in China is a kind of pull wire which takes a plurality of steel wires as a base body, takes a flat wire tube as an outer sleeve, takes PA66 sheath and POM bushing and zinc-nickel alloy as combined auxiliary materials. The material has high strength, good corrosion resistance and tensile resistance, and is concentratedly applied on the door lock pull wire, the oil filler cap telescopic pull wire and the like on the automobile. The existing pull wire includes a zinc alloy pin 01, a plurality of steel wire ropes 02, a dust cap 03, a cable sleeve buckle 04, a sleeve 05 and a protective tube 06, as shown in the specific structure of the pull wire. Fig. 1 When the pull wire works, no matter whether the structure of the plurality of steel wire ropes is parallel or winding, the movement of the plurality of steel wire ropes in the sleeve will produce a large resistance. If the opening of the dust cover is small, the steel wire drives the dust cover to produce resistance in the process of movement in the sleeve, which hinders the unlocking force value and stroke, and causes the door cover lock to be unable to be normally opened. If the opening of the dust cover is large, dust, oil stains and water mist enter the sleeve, and in the summer or high temperature and high humidity environment, the pull wire is corroded and broken, the pull wire opening fails, and the door cover cannot be opened. In the case of danger needing emergency escape, in the case that the door cannot be opened due to the failure of the pull wire, professional tools are needed to open the door or break the window to rescue people, which causes long time, increases the difficulty of escape, and reduces the escape probability. Therefore, for the electric vehicle and the traditional fuel vehicle, the sealing property, the durability and the weather resistance of the door lock pull wire are particularly important. SUMMARY

[0005] The automobile cable sealing structure aims to provide a reliable sealing method for the cable sealing problem of a lock body, provide unlocking security for a safety escape door lock, and solve the problems of dust and water entering the cable sleeve and cable corrosion, so as to solve the problem of large resistance between the cable and the sleeve during the movement of the cable.

[0006] To achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0007] The automobile cable sealing structure comprises a zinc alloy plunger, a plurality of steel wires, one end of the plurality of steel wires is fixedly connected with the zinc alloy plunger, a zinc alloy plunger sheath is arranged outside the zinc alloy plunger, a plastic-coated layer of the plurality of steel wire ropes is injection molded on the outer surface of the plurality of steel wires, a sleeve is movably sleeved on the plastic-coated layer of the plurality of steel wire ropes, the plurality of steel wires are limitedly moved in the sleeve, a dustproof cap is sleeved between the sleeve and the zinc alloy plunger sheath, and a protective sleeve is sleeved outside the sleeve.

[0008] Further, the zinc alloy plunger sheath comprises a sheath body, a tapered pipe portion and a cylindrical pipe portion connecting the sheath body and the tapered pipe portion, the sheath body is sleeved on the zinc alloy plunger, the cylindrical pipe portion is sleeved on the plurality of steel wire ropes close to the zinc alloy plunger, and the tapered pipe portion is in compression contact with one end of the dustproof cap.

[0009] Further, the material of the zinc alloy plunger sheath is one of POM or PA66.

[0010] Further, the dustproof cap is made of a material with good elasticity, such as EPDM, TPE and silicone, and is injection molded.

[0011] Further, the dustproof cap is connected with the sleeve in a clamping mode, and comprises a dustproof cap body and a tapered portion in an integrated structure, and the tapered portion is in compression contact with the tapered pipe portion.

[0012] Further, the friction coefficient of the outer surface of the plastic-coated layer of the plurality of steel wire ropes is smaller than the friction coefficient of the inner surface of the sleeve.

[0013] The automobile cable sealing structure has the following beneficial effects:

[0014] The door lock cable sealing structure has no influence on the connection of the door lock structure, the cable sealing has no influence on the opening and closing stroke, the structure simultaneously meets the requirements of automobile modification and production line assembly, meets the sealing and durability performance, fully considers the cable use environment, and can adapt to the cabin, door and body side wall sheet metal environment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the existing cable structure.

[0016] Fig. 2 It is a schematic diagram of the cable structure of the present application.

[0017] Fig. 3 Figure 1 is a schematic view of a zinc alloy plunger plastic layer structure.

[0018] Reference signs:

[0019] 01, zinc alloy plunger; 02, multi-strand steel wire rope; 03, dust cap; 04, cable sleeve buckle; 05, sleeve; 06, protective tube; 1, zinc alloy plunger; 2, zinc alloy plunger sheath; 21, sheath body; 22, cylindrical tube; 23, tapered tube; 3, multi-strand steel wire; 4, multi-strand steel wire rope plastic layer; 5, dust cap; 6, sleeve; 61, cable sleeve buckle; 7, protective tube; 51, dust cap body; 52, tapered portion. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be described in detail below in combination with the drawings. The following examples are only exemplary and can only be used to explain and illustrate the technical solutions of the present application, but cannot be interpreted as a limitation of the technical solutions of the present application.

[0021] As shown in Figs. 1 to 3 , the present application provides a kind of automobile cable sealing structure, including zinc alloy plunger 1, multi-strand steel wire 3, one end of multi-strand steel wire 3 is fixedly connected with zinc alloy plunger 1, zinc alloy plunger sheath 2 is arranged on the outside of zinc alloy plunger 1, multi-strand steel wire rope plastic layer is injection molded on the outer surface of multi-strand steel wire, sleeve 6 is movably sleeved on multi-strand steel wire rope plastic layer, multi-strand steel wire is limited to move in sleeve, dust cap 5 is sleeved between sleeve and zinc alloy plunger sheath, protective tube 7 is sleeved on the outside of sleeve 6.

[0022] The zinc alloy plunger of the present application uses existing technology, the technical solutions of the present application do not improve it, and according to actual needs, the material of the plunger can also use other materials. Similarly, the multi-strand steel wire of the present application also uses multi-strand steel wire of existing technology, and the connection relationship between multi-strand steel wire and zinc alloy plunger is also the same as existing technology.

[0023] In the technical solutions of the present application, first, multi-strand steel wire rope plastic layer is injection molded on the outer surface of multi-strand steel wire, which is wrapped by online injection molding, and the plastic layer is wrapped with PE, PA46 and other low-friction coefficient wear-resistant materials.

[0024] The zinc alloy plunger sheath of the present application is injection molded with POM, PA66 and other hard materials, in other embodiments of the present application, other materials can also be selected for injection molding according to needs, and the zinc alloy plunger and the zinc alloy plunger are produced by injection molding.

[0025] The zinc alloy pin sheath 2 includes a sheath body 21, a tapered tube portion 23 and a cylindrical tube portion 22 connecting the sheath body and the tapered tube portion. The sheath body is sleeved on the zinc alloy pin, the cylindrical tube portion is sleeved on the multi-strand steel wire rope close to the zinc alloy pin, and the tapered tube portion is in compression contact with one end of the dust cap.

[0026] In the present application, the friction coefficient of the outer surface of the plastic-coated layer of the multi-strand steel wire rope is smaller than the friction coefficient of the inner surface of the casing.

[0027] In the present application, the dust cap 5 is snap-connected with the sleeve 6 and comprises an integral dust cap body 51 and a tapered portion 52 , wherein the tapered portion is in compression contact with the tapered tube portion.

[0028] After the cable is assembled, no matter the cable is in the vertical Z direction or the X direction, when it is not working, the zinc alloy pin sheath and the dust cap are in a compressed and sealed state. When working, because the multi-strand steel wire is covered with a plastic layer, the zinc alloy pin sheath effectively prevents dust and water stains from falling into the wire drawing sleeve, which can permanently eliminate the corrosion of the multi-strand steel wire inside the cable.

[0029] The above is a preferred embodiment of the present invention. The basic principles and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automobile cable sealing structure, characterized in that: It includes a zinc alloy column pin and multi-strand steel wire. One end of the multi-strand steel wire is fixedly connected to the zinc alloy column pin. A zinc alloy column pin sheath is provided on the outside of the zinc alloy column pin. A multi-strand steel wire rope plastic coating layer is injection-molded on the outer surface of the multi-strand steel wire. The sleeve is movably sleeved on the multi-strand steel wire rope plastic coating layer. The multi-strand steel wire performs limited movement in the sleeve. A dust cap is sleeved between the sleeve and the zinc alloy column pin sheath. The protective tube is sleeved on the outside of the sleeve.

2. The automobile cable sealing structure according to claim 1, characterized in that: The zinc alloy pin sheath includes a sheath body, a tapered tube portion, and a cylindrical tube portion connecting the sheath body and the tapered tube portion. The sheath body is sleeved on the zinc alloy pin, the cylindrical tube portion is sleeved on a multi-strand steel wire rope close to the zinc alloy pin, and the tapered tube portion is in compression contact with one end of the dust cap.

3. The automobile cable sealing structure according to claim 1, characterized in that: The material of the zinc alloy pin sheath is one of POM and PA66.

4. The automobile cable sealing structure according to claim 1, characterized in that: The dust cap is made of EPDM, TPE and silicone, which are materials with good elasticity and are injected with glue.

5. The automobile cable sealing structure according to claim 2, characterized in that: The dust cap is connected to the sleeve by clamping, and comprises a dust cap body and a tapered portion of an integrated structure, wherein the tapered portion is in compression contact with the tapered tube portion.

6. The automobile cable sealing structure according to claim 1, characterized in that: The friction coefficient of the outer surface of the plastic-coated layer of the multi-strand steel wire rope is smaller than the friction coefficient of the inner surface of the casing.

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