Automobile door lock inhaul cable assembly
By installing a water-blocking cap and a sliding part in the car door lock cable assembly, the problem of water ingress and freezing between the core wire and the sleeve end was solved, enabling normal opening and closing of the car door in low-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technology, water can easily enter through the gap between the core wire and the end of the sleeve of the car door lock cable, especially in low-temperature environments where the water freezes, causing the car door to be unable to lock and unlock properly.
An automotive door lock cable assembly was designed, including a core wire, a sheath, a guide head, and a water-retaining cap. The water-retaining cap is interference-fitted with the core wire and is positioned in front of the guide head to prevent water droplets from flowing into the gap. It also guides water droplets out through a tapered surface. The sliding part is in close contact with the inner wall of the guide head and is provided with a lubricating film layer to further prevent water from entering.
It effectively prevents water droplets from entering the gap between the core wire and the guide head, reduces the risk of the core wire getting stuck in low-temperature environments, and ensures that the car door can open and close normally.
Smart Images
Figure CN224017019U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile door lock, more particularly to an automobile door lock cable assembly. BACKGROUND
[0002] The automobile door lock cable is an important mechanical component in the automobile door lock system, which connects the handle on the inner side of the door and the door lock mechanism, and mainly functions to transmit the mechanical action of the handle on the inner or outer side of the door to the door lock mechanism, so as to realize the unlocking and opening of the door.
[0003] For example, the prior art discloses a control cable of an automobile door lock, which comprises a sleeve and a nylon rope slidingly matched in the sleeve cavity, one end of the sleeve is fixedly connected with a first sleeve end, the other end of the sleeve is fixedly connected with a second sleeve end, the circumferential surface of the first sleeve end and the second sleeve end is respectively provided with an annular positioning groove, the shaft hole of the first sleeve end and the shaft hole of the second sleeve end are communicated with the sleeve cavity and are located on the same straight line, one end of the nylon rope is outwardly extended from the first sleeve end and is fixedly connected with a plastic connector, the plastic connector is provided with at least one annular mounting groove, the annular mounting groove is perpendicular to the axis of the sleeve, the other end of the nylon rope is outwardly extended from the second sleeve end and is fixedly connected with an alloy connector.
[0004] In the above technical scheme, when the driver or passenger pulls the handle on the outer side of the door to open the door, the nylon rope (i.e. the core wire) of the cable is pulled to unlock the door lock mechanism. When the core wire is pulled, the sleeve end and the core wire will be relatively rubbed, and the gap between the sleeve end and the core wire will become larger after long-term use. First, since the door lock is generally arranged at the door and close to the external low-temperature environment, the high-temperature water vapor in the air in the vehicle will condense and release heat on the door lock and the cable wire to form water droplets, and under normal circumstances, the height of the handle on the outer side of the door will be higher than that of the door lock, so that the water droplets on the cable will flow into the gap between the core wire and the sleeve end under the gravity and then flow into the inside of the sleeve. Secondly, the high-temperature water vapor in the air in the vehicle will also condense into water droplets and adhere to the cable to flow into the gap between the core wire and the sleeve end. Thirdly, when it rains or the vehicle is washed or the snow on the vehicle window melts, water will also flow into the gap between the core wire and the sleeve end along the core wire. If water enters the gap between the core wire and the sleeve end, after the vehicle stays in the low-temperature environment for a certain period of time, the water will freeze to increase the pulling resistance of the core wire, so that the core wire cannot be pulled and the power transmission cannot be completed, and finally the door cannot be normally unlocked and locked. UTILITY MODEL CONTENTS
[0005] In view of the problem that the gap between the core wire and the sleeve end is easy to enter water in the prior art, and the water freezes in the low-temperature environment to cause the door to be unable to be normally unlocked and locked, the utility model provides an automobile door lock cable assembly, which can reduce the risk of water entering.
[0006] To solve the above technical problems, the technical scheme provided by the utility model is
[0007] The automobile door lock cable assembly further comprises a water-blocking cap, the water-blocking cap is sleeved outside the core wire and is in interference fit with the core wire or is integrally formed with the core wire, and the water-blocking cap is located between the first connecting piece and the first guide head.
[0008] In the above technical scheme, when the cable assembly is used, the first connecting piece is connected with an automobile door outer handle, the second connecting piece is connected with an automobile door lock body, and the first guide head is fixed on the door.
[0009] Preferably, one side of the water-blocking cap close to the first guide head is provided with a sliding part, the sliding part is sleeved outside the core wire and is in interference fit with the core wire or is integrally formed with the core wire, and the inner wall of the inner cavity of the sliding part is provided with a lap joint ring, and the outer edge of the side of the sliding part away from the water-blocking cap is lap jointed with the lap joint ring.
[0010] Preferably, the outer circumferential surface of the sliding part is in abutment with the inner wall of the inner cavity of the first guide head.
[0011] Preferably, a lubricating film layer is arranged between the sliding part and the inner wall of the inner cavity of the first guide head.
[0012] Preferably, the water-blocking cap is provided with a tapered surface on the outer periphery, and the diameter of the tapered surface close to one end of the first guide head is larger than the diameter of the other end. When the water droplets flow along the core wire through the water-blocking cap, they flow through the tapered surface and then flow out in the direction away from the core wire along the tapered surface, so that the possibility of the water droplets flowing along the bottom surface of the water-blocking cap to the gap between the sliding part and the inner cavity of the first guide head is reduced, thereby further reducing the risk that the automobile door lock cannot be normally opened and closed due to the water droplets flowing into the inner cavity of the first guide head.
[0013] Preferably, the diameter of the tapered surface close to one end of the first guide head is larger than the diameter of the side of the first guide head close to the water-blocking cap. In this way, the water droplets on the tapered surface can be prevented from being on the top surface of the first guide head, thereby reducing the possibility of the water flowing along the top surface of the first guide head into the gap between the sliding part and the inner cavity of the first guide head.
[0014] Preferably, the water-blocking cap and the sliding part are both made of plastic structure and are integrally formed. That is, the water-blocking cap and the sliding part are both made of plastic material. The water-blocking cap and the sliding part made of plastic material have good corrosion resistance and can be used in a humid environment for a long time without rusting or corroding, and the weight of the water-blocking cap and the sliding part is relatively light, which helps to reduce the overall weight of the cable assembly.
[0015] Preferably, the core wire is made of metal structure, and the water-blocking cap and the sliding part are both in interference fit with the core wire. The core wire is made of metal material, so that the core wire has high strength and tensile properties.
[0016] Preferably, the sheath is made of rubber structure, that is, the sheath is made of rubber material. The sheath made of rubber material has good wear resistance and anti-aging performance, which can prolong the service life of the cable assembly. The rubber material has good flexibility and elasticity, which can provide sufficient cushioning during the movement of the core wire and reduce damage caused by bending or stretching.
[0017] Preferably, a foam layer is provided outside the sheath. The foam layer has good elasticity and can absorb vibration and impact, thereby reducing the stress generated by the vehicle driving bump or the door lock operation during the use of the cable, thereby prolonging the service life of the cable.
[0018] The utility model discloses the beneficial effect:
[0019] 1. By setting the water-blocking cap in front of the first guide head, the water-blocking cap can block the water droplets from flowing into the gap between the first guide head inner cavity and the core wire, thereby reducing the risk of the core wire being stuck in a low temperature environment.
[0020] 2. The tapered surface on the water-blocking cap can guide the water to flow out in the direction away from the core wire, thereby reducing the accumulation of water on the first guide head and the possibility of water entering the inner cavity of the first guide head.
[0021] 3, the water cap is provided with a sliding part, a lubricating film layer is arranged between the sliding part and the inner wall of the inner cavity of the first guide head, and the sliding part is abutted with the overlapping ring in the inner cavity of the first guide head, so that water can be completely avoided from flowing into the inner cavity of the first guide head, and the core wire can be completely avoided from being stuck in a low-temperature environment to cause a situation that the core wire cannot be normally opened and closed. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of an automobile door lock cable assembly.
[0023] Figure 2 It is a partial structural schematic diagram of an automobile door lock cable assembly.
[0024] Figure 3 It is a partial sectional view of an automobile door lock cable assembly.
[0025] In the drawings: 1-core wire; 2-sheath; 3-first guide head; 301-overlapping ring; 4-second guide head; 5-first connecting piece; 6-second connecting piece; 7-water cap; 701-tapered surface; 702-sliding part. DETAILED DESCRIPTION
[0026] The drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiment, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it can be understood that some well-known structures in the drawings and their descriptions can be omitted. The positional relationship described in the drawings is only used for exemplary illustration, and cannot be understood as a limitation on the patent.
[0027] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "long" and "short" is based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent, and for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0028] The technical scheme of the utility model will be further concretely described below through specific embodiments and in combination with the drawings:
[0029] Embodiment 1
[0030] The embodiment is a first embodiment of an automobile door lock cable assembly, as shown in Figure 1As shown, it comprises a core wire 1, a sheath 2 sleeved outside the core wire 1, a first guide head 3 and a second guide head 4 respectively connected to both ends of the sheath 2 and sleeved outside the core wire 1, a first connecting piece 5 and a second connecting piece 6 respectively arranged at both ends of the core wire 1, and the first guide head 3 is located between the first connecting piece 5 and the second guide head 4. Further, as shown in Figure 1 and Figure 2 As shown, the cable assembly further comprises a water-blocking cap 7, which is sleeved outside the core wire 1 and is in interference fit with the core wire 1, and the water-blocking cap 7 is located between the first connecting piece 5 and the first guide head 3.
[0031] Further, the water-blocking cap 7 adopts a plastic structure, that is, the water-blocking cap 7 is made of plastic material. The water-blocking cap 7 made of plastic material has good corrosion resistance and can be used in a humid environment for a long time without rusting or corroding, and its weight is relatively light, which helps to reduce the overall weight of the cable assembly.
[0032] Further, the core wire 1 adopts a metal structure, and the water-blocking cap 7 is in interference fit with the core wire 1. The core wire 1 is made of metal material, so that the core wire 1 has high strength and tensile properties.
[0033] Further, the sheath 2 adopts a rubber structure, that is, the sheath 2 is made of rubber material. The sheath 2 made of rubber material has good wear resistance and anti-aging properties, which can prolong the service life of the cable assembly. The rubber and the sheath 2 made of rubber material have good flexibility and elasticity, which can provide sufficient cushioning during the movement of the core wire 1 and reduce damage caused by bending or stretching.
[0034] Further, a foam layer (not shown in the figure) is sleeved outside the sheath 2. The foam layer has good elasticity and can absorb vibration and impact, reducing the stress generated by the vehicle driving bump or the door lock operation during the use of the cable, thereby prolonging the service life of the cable.
[0035] The working process of the embodiment: when the cable assembly is used, the first connecting piece 5 is connected to the automobile door outer handle, the second connecting piece 6 is connected to the automobile door lock body, and the first guide head 3 is fixed on the door. When the driver or the passenger pulls the automobile door outer handle, the core wire 1 is pulled, so as to slide relative to the first guide head 3, and the water-blocking cap 7 moves synchronously with the core wire 1. During the entire use process, the water-blocking cap 7 can block the water droplets from flowing into the gap between the first guide head 3 inner cavity and the core wire 1, thereby reducing the risk of core wire 1 jamming in a low temperature environment.
[0036] The beneficial effects of the embodiment: by arranging the water-blocking cap in front of the first guide head, the water droplets can be blocked from flowing into the gap between the first guide head inner cavity and the core wire, thereby reducing the risk of core wire jamming in a low temperature environment.
[0037] Embodiment 2
[0038] This embodiment is a second embodiment of a car door lock cable assembly, which is similar to embodiment 1, except that Figure 2 and Figure 3 As shown in the figure, the water-blocking cap 7 is provided with a sliding part 702 on the side close to the first guide head 3, the sliding part 702 is sleeved outside the core wire 1 and is in interference fit with the core wire 1, and the sliding part 702 is integrally formed with the water-blocking cap 7; the inner cavity wall of the sliding part 702 is provided with a lap joint ring 301, and the outer edge of the side of the sliding part 702 away from the water-blocking cap 7 is lapped with the lap joint ring 301. In the initial state, that is, in the state where the core wire 1 is not pulled, the sliding part 702 is tightly attached to the lap joint ring 301, forming a sealed barrier, which can greatly reduce the risk of water entering the gap between the first guide head 3 and the core wire 1.
[0039] Further, the outer circumferential side of the sliding part 702 is attached to the inner cavity wall of the first guide head 3. In this way, the gap between the sliding part 702 and the inner cavity of the first guide head 3 can be reduced, and the possibility of water continuing to enter the inner cavity of the first guide head 3 through the gap between the sliding part 702 and the inner cavity of the first guide head 3 can be reduced.
[0040] Further, a lubricating film layer (not shown in the figure) is provided between the sliding part 702 and the inner cavity wall of the first guide head 3, which is a lubricating grease layer. The lubricating film layer not only can reduce the friction between the sliding part 702 and the inner cavity wall of the first guide head 3, thereby reducing the pulling resistance of the core wire 1 and reducing the abnormal sound when the core wire 1 is pulled, but also forms a sealed film between the sliding part 702 and the inner cavity wall of the first guide head 3, which can further prevent water from entering the inner cavity of the first guide head 3.
[0041] The beneficial effects of this embodiment compared to embodiment 1 are: the sliding part is provided on the water-blocking cap, a lubricating film layer is provided between the sliding part and the inner cavity wall of the first guide head, and the sliding part abuts against the lap joint ring in the inner cavity of the first guide head, which can completely prevent water from flowing into the inner cavity of the first guide head and avoid the core wire from being stuck in a low-temperature environment to cause the car door lock to be unable to be normally opened or closed.
[0042] The other features, working principles and beneficial effects of this embodiment are consistent with those of embodiment 1.
[0043] Embodiment 3
[0044] This embodiment is a third embodiment of a car door lock cable assembly, which is similar to embodiment 2, except that, as shown in Figure 1 or Figure 2As shown, the outer circumferential side of the water-blocking cap 7 is provided with a tapered surface 701, the diameter of the tapered surface 701 near one end of the first guide head 3 is greater than the diameter of the other end. When the water droplets flow along the core wire 1 and pass through the water-blocking cap 7, they will flow through the tapered surface 701 and then flow out in the direction away from the core wire 1 along the tapered surface 701. In this way, the possibility of water droplets flowing along the bottom surface of the water-blocking cap 7 to the gap between the sliding part 702 and the inner cavity of the first guide head 3 can be reduced, thereby further reducing the risk that the automobile door lock cannot be normally opened and closed due to water droplets flowing into the inner cavity of the first guide head 3.
[0045] Further, the diameter of the tapered surface 701 near one end of the first guide head 3 is greater than the diameter of the side of the first guide head 3 near the water-blocking cap 7. In this way, the water droplets on the tapered surface 701 can be prevented from flowing onto the top surface of the first guide head 3, thereby reducing the possibility of water flowing along the top surface of the first guide head 3 into the gap between the sliding part 702 and the inner cavity of the first guide head 3.
[0046] The beneficial effects of the present embodiment compared to embodiment 2 are that the tapered surface provided on the water-blocking cap can guide water to flow out in the direction away from the core wire, reduce the accumulation of water on the first guide head, and thereby reduce the possibility of water entering the inner cavity of the first guide head.
[0047] The other features, working principles and beneficial effects of the present embodiment are consistent with those of embodiment 2.
[0048] In the specific contents of the above specific embodiments, any technically consistent combination of technical features can be made, and in order to make the description concise, not all possible combinations of the above technical features are described, but as long as the combination of technical features does not exist Contradiction, it should be considered as within the scope of the present disclosure.
[0049] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not a limitation on the embodiments of the present application. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description, and here it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. A car door lock cable assembly, comprising a core wire (1), a sheath (2) sleeved outside the core wire (1), a first guide (3) and a second guide (4) respectively connected to both ends of the sheath (2) and sleeved outside the core wire (1), a first connector (5) and a second connector (6) respectively disposed at both ends of the core wire (1), wherein the first guide (3) is located between the first connector (5) and the second guide (4); characterized in that, It also includes a water-blocking cap (7), which is sleeved on the outside of the core wire (1) and is either interference-fitted with the core wire (1) or integrally formed with the core wire (1). The water-blocking cap (7) is located between the first connector (5) and the first guide head (3).
2. The automotive door lock cable assembly according to claim 1, characterized in that, The water-blocking cap (7) has a sliding part (702) on the side near the first guide head (3). The sliding part (702) is sleeved on the outside of the core wire (1) and is either interference-fitted with the core wire (1) or integrally formed with the core wire (1). The inner wall of the inner cavity of the sliding part (702) is provided with an overlapping ring (301). The outer edge of the sliding part (702) on the side away from the water-blocking cap (7) overlaps with the overlapping ring (301).
3. The automotive door lock cable assembly according to claim 2, characterized in that, The outer peripheral side of the sliding part (702) is in contact with the inner wall of the first guide head (3).
4. The automotive door lock cable assembly according to claim 3, characterized in that, A lubricating film layer is provided between the sliding part (702) and the inner wall of the first guide head (3).
5. The automotive door lock cable assembly according to claim 1, characterized in that, The water-blocking cap (7) has a conical surface (701) on its outer periphery, and the diameter of the conical surface (701) at one end near the first guide head (3) is larger than the diameter of the other end.
6. The automotive door lock cable assembly according to claim 5, characterized in that, The diameter of the tapered surface (701) near the first guide head (3) is greater than the diameter of the first guide head (3) near the water-blocking cap (7).
7. A car door lock cable assembly according to claim 2, characterized in that, Both the water-blocking cap (7) and the sliding part (702) are made of plastic and are integrally formed.
8. A car door lock cable assembly according to claim 7, characterized in that, The core wire (1) adopts a metal structure, and the water-blocking cap (7) and the sliding part (702) are both interference fit with the core wire (1).
9. A car door lock cable assembly according to any one of claims 1 to 8, characterized in that, The sheath (2) is made of rubber.
10. A car door lock cable assembly according to claim 9, characterized in that, The outer sheath (2) is covered with a foam layer.