Car door lock with anti-corrosion structure

Abstract

The utility model relates to a car door lock with an anti-corrosion structure, which comprises a lock seat capable of being mounted on a car door, a cavity is formed in one side, outside the car door, of the lock seat, a door lock handle capable of being linked with a lock cylinder structure is mounted in the cavity, and a key cover for shielding an emergency key hole is further arranged in the cavity. The side, located in the automobile door, of the lock seat extends towards the side by a certain length, and an extension cover matched with the lock seat in overall length is fixedly installed on the side, located outside the automobile door, of the lock seat. The lock seat is integrally expanded, and the movable cover plate assembly is mounted in the expansion cover of the lock seat, so that the cavity of the lock seat can be sealed by the water blocking cover, water is prevented from extending into a lock cylinder structure along a door lock handle in rainy days, accumulation of the water in the cavity of the lock seat can be reduced, and the service life of the lock seat is prolonged. Therefore, the corrosion of the automobile door lock caused by the influence of rainwater can be effectively reduced.

Description

Technical Field

[0001] This application relates to the technical field of car door locks, and particularly to a car door lock with an anti-rust structure. Background Art

[0002] An automobile lock refers to an object that fastens the car door to the vehicle body. It generally consists of a movable part and a fixed part, and the combination and separation of the movable part and the fixed part are used to close and open the car door.

[0003] For example, a common automobile door lock has a lock base installed on the car door. A cavity is formed on the outer side of the car door where the lock base is located. A door lock handle that can be linked to the lock core structure is installed in the cavity. The lock core structure is hidden inside the car door and is used to control the opening and closing of the car door and the vehicle body. A key cover that blocks the emergency keyhole is also provided in the cavity. When the door lock handle cannot perform the unlocking operation, the key cover can be rotated to expose the keyhole, and the key can be used to open the car door.

[0004] Since a cavity is formed on the outer side of the car door where the lock base is located, water accumulation is likely to occur in the cavity formed on the outer side of the car door where the lock base is located during rainy weather. And because the door lock handle needs to move for unlocking operations and cannot achieve complete sealing of its own structure, water is likely to seep into the lock core structure during rainy weather, causing rust of the car door lock. Summary of the Utility Model

[0005] In order to improve the problems proposed in the above background art, this application provides a car door lock with an anti-rust structure.

[0006] The car door lock with an anti-rust structure provided by this application adopts the following technical solutions:

[0007] A car door lock with an anti-rust structure includes a lock base that can be installed on the car door. A cavity is formed on the outer side of the car door where the lock base is located. A door lock handle that can be linked to the lock core structure is installed in the cavity. And a key cover that blocks the emergency keyhole is also provided in the cavity. The side of the lock base located inside the car door extends a certain length laterally. An extension cover that is adapted to the overall length of the lock base is fixedly installed on the outer side of the car door where the lock base is located. A spacer that fills the gap is fixedly connected between the extension cover and the side of the lock base located inside the car door. An active cover assembly is installed in the inner cavity of the extension cover. The active cover assembly includes a water-blocking cover that can be adjusted in position. After the water-blocking cover moves to the cavity of the lock base, it can cover the cavity of the lock base.

[0008] Furthermore, the movable cover plate assembly further includes at least one set of adjusting parts and guide frames equal in number to the adjusting parts. The side of the guide frame facing the cushion block is fixedly connected to the cushion block. Transverse moving grooves and longitudinal moving grooves that communicate with each other are respectively formed on the guide frame, and the transverse moving grooves and the longitudinal moving grooves are perpendicularly distributed; the adjusting part includes two insertion shafts, two parallel rods, and a push rod. The two insertion shafts are inserted into and fixedly connected to both ends of the water blocking cover on the side facing away from the cavity of the lock seat, and the two insertion shafts also extend into the guide frame and are slidably connected thereto. The two parallel rods are respectively sleeved on the two insertion shafts in parallel and are rotatably connected thereto. The ends of the two parallel rods away from the insertion shafts are respectively rotatably connected to both ends of the push rod.

[0009] Furthermore, the number of the adjusting parts is set to two groups, and the two groups of adjusting parts are respectively installed on opposite sides of the water blocking cover in the width direction. The push rods in the two groups of adjusting parts are fixedly connected by a double-link frame. A shift rod that penetrates out of the double-link frame is formed on the side of the double-link frame facing the extension cover.

[0010] Furthermore, a shifting groove and an avoidance groove that communicate with each other are formed on the extension cover. The avoidance groove faces the cavity of the lock seat and is aligned with it. The shifting rod movably passes through the shifting groove. A drainage groove that communicates with the inner cavity of the extension cover is also formed at the bottom of the extension cover.

[0011] Furthermore, the water blocking cover includes a cover plate and four connecting handles. The four connecting handles are respectively formed at the four corners of the side of the cover plate facing away from the cavity of the lock seat, and each connecting handle is fixedly connected to the adjacent insertion shaft. A rubber ring is also adhesively fixed to the outer edge of the side of the cover plate facing the cavity of the lock seat.

[0012] The beneficial technical effects of the present application are as follows: By enlarging the lock seat as a whole and installing a movable cover plate assembly in the extension cover of the lock seat, the cavity of the lock seat can be blocked by the water blocking cover, thereby preventing water from extending into the lock core structure along the door lock handle in rainy weather, and reducing the accumulation of water in the cavity of the lock seat, so as to effectively reduce the rust of the car door lock affected by rain. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an outer door lock in the prior art;

[0014] Figure 2 is a schematic structural diagram of a car door lock with an anti-rust structure according to an embodiment of the present application;

[0015] Figure 3 is Figure 1 a schematic structural diagram of the car door lock with an anti-rust structure in

[0016] Figure 4 It is a schematic structural diagram of the movable cover plate assembly in the embodiment of the present application.

[0017] Reference numerals: 10, lock base; 11, spacer block; 12, extension cover; 13, drainage groove; 14, dial groove; 15, avoidance groove; 20, door lock handle; 30, key cover; 40, movable cover plate assembly; 41, water blocking cover; 411, cover plate; 412, rubber ring; 413, connecting handle; 42, adjusting part; 421, insertion shaft; 422, parallel rod; 423, push rod; 43, guide frame; 431, lateral movement groove; 432, longitudinal movement groove; 44, double-link frame; 45, dial rod. Detailed implementation manners

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

[0019] Common car door locks are as shown in the accompanying drawings of the specification Figure 1 and include a lock base 10 that can be installed on the car door. A cavity is formed on one side of the lock base 10 outside the car door. A door lock handle 20 that can be linked to the lock core structure is installed in the cavity. The lock core structure is hidden inside the car door and is used to control the opening and closing of the car door and the body. A key cover 30 that blocks the emergency keyhole is also provided in the cavity. When the door lock handle cannot perform the unlocking operation, the key cover can be rotated to expose the keyhole, and the key can be used to open the car door.

[0020] The embodiment of the present application discloses a car door lock with an anti-rust structure. Refer to Figure 2 and Figure 3, on the basis of the original car door lock, the door lock with an anti-rust structure can extend the side of the lock seat 10 located inside the car door laterally by a certain length, making its overall length longer. In addition, an extension cover 12 adapted to the overall length of the lock seat 10 is fixedly installed on the side of the lock seat 10 located outside the car door. A spacer 11 for filling the gap is fixedly connected between the extension cover 12 and the side of the lock seat 10 located inside the car door. An active cover assembly 40 is installed in the inner cavity of the extension cover 12. In the active cover assembly 40, a water-blocking cover 41 whose position can be moved and adjusted is provided. After the water-blocking cover 41 moves to the cavity of the lock seat 10, it can cover the cavity of the lock seat 10 and block the cavity of the lock seat 10, thereby preventing water from entering it, and further reducing the corrosion effect on the door lock caused by water seeping into the lock core structure. A drain groove 13 communicating with the inner cavity of the extension cover 12 can also be formed at the bottom of the extension cover 12, so that while the water-blocking cover 41 blocks the cavity of the lock seat 10, the water can be drained downward through the drain groove 13.

[0021] Refer to Figure 4 , in this embodiment, in addition to the water-blocking cover 41, the active cover assembly 40 further includes at least one set of adjusting parts 42 and a number of guide frames 43 equal to the number of the adjusting parts 42.

[0022] One side of the guide frame 43 facing the spacer 11 is fixedly connected to the spacer 11. Transverse moving grooves 431 and longitudinal moving grooves 432 that communicate with each other are respectively formed on the guide frame 43, and the transverse moving grooves 431 and the longitudinal moving grooves 432 are vertically distributed.

[0023] The adjusting part 42 includes two insertion shafts 421, two parallel rods 422 and a push rod 423. The two insertion shafts 421 are inserted at both ends of the back side of the water-blocking cover 41 facing away from the cavity of the lock seat 10 and are fixedly connected thereto. In addition, the two insertion shafts 421 also extend into the guide frame 43 and are slidably connected thereto. The movement of the two insertion shafts 421 in the transverse moving groove 431 or the longitudinal moving groove 432 on the guide frame 43 can adjust the position of the water-blocking cover 41. The two parallel rods 422 are respectively sleeved on the two insertion shafts 421 in parallel and are rotatably connected thereto. The ends of the two parallel rods 422 away from the insertion shafts 421 are respectively rotatably connected to both ends of the push rod 423. When the push rod 423 is pushed to move, both ends of the push rod 423 can respectively drive the two parallel rods 422 to deflect simultaneously, and the water-blocking cover 41 can be driven by the parallel rods 422 and the insertion shafts 421 connected thereto.

[0024] When the insertion shaft 421 is located in the transverse moving groove 431, the insertion shaft 421 can drive the water-blocking cover 41 to perform a transverse translation close to the cavity of the lock seat 10; when the insertion shaft 421 is located in the longitudinal moving groove 432, the insertion shaft 421 can drive the water-blocking cover 41 to perform a longitudinal translation to block the cavity of the lock seat 10.

[0025] In this embodiment, in order to enable the water blocking cover 41 to move more smoothly, the number of the adjusting parts 42 is set to two groups, and the two groups of adjusting parts 42 are respectively installed on the opposite sides of the water blocking cover 41 along the width direction. The push rods 423 in the two groups of adjusting parts 42 are connected and fixed by a double connecting rod 44, so that the two groups of adjusting parts 42 can drive the movement of the water blocking cover 41 simultaneously. In order to drive the water blocking cover 41 to move more conveniently, a lever 45 extending out of the double connecting rod 44 is formed on one side of the double connecting rod 44 facing the extension cover 12. By pushing the lever 45, the user can make the two groups of adjusting parts 42 drive the water blocking cover 41 to move.

[0026] In this embodiment, a dial groove 14 and an avoidance groove 15 communicating with each other are formed on the extension cover 12. The avoidance groove 15 faces the cavity of the lock base 10 and is aligned with it. The dial groove 14 is movably penetrated by the lever 45. The dial groove 14 is used to guide and limit the movement of the lever 45. The avoidance groove 15 can avoid interference with the door lock handle 20 during operation.

[0027] In this embodiment, the water blocking cover 41 may include a cover plate 411, a rubber ring 412, and four connecting handles 413. The connecting handles 413 are respectively formed at the four corners of the side of the cover plate 411 facing away from the cavity of the lock base 10, and each connecting handle 413 is fixedly connected to the adjacent insertion shaft 421 in a clamped manner. The shape and size of the water blocking cover 41 can be respectively matched with the shape and size of the cavity of the lock base 10, so that the water blocking cover 41 can enter the cavity of the lock base 10 and block it. The rubber ring 412 is adhesively fixed to the outer edge of the side of the cover plate 411 facing the cavity of the lock base 10, so that after the water blocking cover 41 enters the cavity of the lock base 10, the rubber ring 412 can make the water blocking cover 41 seal the cavity of the lock base 10 tightly.

[0028] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A door lock with an anti-corrosion structure, comprising a lock seat (10) that can be installed on a car door, wherein a cavity is formed on a side of the lock seat (10) located outside the car door, a door lock handle (20) that can be linked to a lock core structure is installed in the cavity, and a key cover (30) that covers an emergency key hole is also arranged in the cavity, characterized in that: The lock seat (10) is located on a side inside the vehicle door and extends laterally by a certain length. An extension cover (12) matching the overall length of the lock seat (10) is fixedly mounted on the side outside the vehicle door of the lock seat (10). A cushion block (11) for filling a gap is fixedly connected between the extension cover (12) and the side inside the vehicle door of the lock seat (10). A movable cover plate assembly (40) is installed in the inner cavity of the extension cover (12). The movable cover plate assembly (40) comprises a water blocking cover (41) whose position can be movably adjusted. The water blocking cover (41) can cover the cavity of the lock seat (10) after being moved to the cavity of the lock seat (10).

2. A door lock with an anti-corrosion structure according to claim 1, characterized in that: The movable cover assembly (40) further comprises at least one set of adjustment parts (42) and guide frames (43) whose number is equal to the number of the adjustment parts (42). The guide frame (43) is fixedly connected to the cushion block (11) on one side thereof, and is respectively provided with a lateral movement groove (431) and a longitudinal movement groove (432) which are interconnected, and the lateral movement groove (431) and the longitudinal movement groove (432) are arranged perpendicular to each other. The adjusting portion (42) comprises two plug shafts (421), two parallel rods (422) and a push rod (423); the two plug shafts (421) are inserted at two ends of the water blocking cover (41) on a side facing away from the cavity of the lock seat (10) and are fixedly connected thereto; the two plug shafts (421) also extend into the guide frame (43) and are slidably connected thereto; the two parallel rods (422) are respectively sleeved on the two plug shafts (421) in parallel with each other and are rotatably connected thereto; and the ends of the two parallel rods (422) away from the plug shafts (421) are respectively rotatably connected to two ends of the push rod (423).

3. A door lock with an anti-corrosion structure according to claim 2, characterized in that: The number of the adjusting parts (42) is set to two groups, and the two groups of adjusting parts (42) are respectively installed on two opposite sides of the water blocking cover (41) along the width direction.

4. The vehicle door lock with an anti-corrosion structure according to claim 3, characterized in that: The push rods (423) in the two groups of the adjusting parts (42) are connected and fixed by means of a double connecting frame (44), and a lever (45) extending out of the double connecting frame (44) is formed on one side of the double connecting frame (44) facing the expansion cover (12).

5. The vehicle door lock with an anti-corrosion structure according to claim 4, characterized in that: The expansion cover (12) is formed with a shifting groove (14) and an avoidance groove (15) which are interconnected. The avoidance groove (15) faces the cavity of the lock seat (10) and is aligned therewith. The shifting groove (14) is movably penetrated by the shifting rod (45).

6. The vehicle door lock with an anti-corrosion structure according to claim 5, characterized in that: The bottom of the expansion cover (12) is also formed with a drainage groove (13) which is in communication with the inner cavity of the expansion cover (12).

7. The vehicle door lock with an anti-corrosion structure according to claim 2, characterized in that: The water blocking cover (41) comprises a cover plate (411) and four connecting handles (413), the four connecting handles (413) being respectively formed at four corners of a side of the cover plate (411) facing away from the cavity of the lock seat (10), and each connecting handle (413) being fixedly connected to an adjacent insertion shaft (421).

8. The vehicle door lock with an anti-corrosion structure according to claim 7, characterized in that: A rubber ring (412) is also bonded and fixed to the outer edge of one side of the cover plate (411) facing the cavity of the lock seat (10).

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