A dust cover for car door lock cylinders
By introducing a buffer structure and reinforcing blocks into the dust cover, the problem that existing dust covers cannot prevent external impacts is solved, and multi-functional protection for the lock cylinder is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGJIANG HONGZHENG AUTO PARTS CO LTD
- Filing Date
- 2024-08-20
- Publication Date
- 2026-07-31
AI Technical Summary
The dust covers on existing car door lock cylinders only provide waterproof and dustproof functions, and cannot effectively prevent damage to the lock cylinder from external impacts.
A dust cover with a buffer structure was designed, including a buffer groove and a buffer spring. Combined with an impact cover and a reinforcing block, the buffer structure absorbs external impact force and enhances the impact resistance of the dust cover.
In addition to being dustproof, it enhances resistance to external impacts, protecting the lock cylinder and preventing damage.
Smart Images
Figure CN224579216U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive door technology, specifically a dust cover for an automotive door lock cylinder. Background Technology
[0002] The car door lock cylinder is the main component that controls the opening of the car door lock. It refers to the core part that works with the key and can rotate to drive the bolt. The exposed end of the lock cylinder usually needs to be protected with a dust cover to prevent external debris from entering the lock cylinder and causing it to be unable to be opened smoothly.
[0003] The existing dust cover for a car door lock cylinder (authorization announcement number: CN 203285166 U) has the following defects: the dust cover ensures that when the lock cylinder is not in use, it prevents external debris from entering the lock cylinder and plays a role in dust prevention and waterproofing. However, the dust cover is relatively simple and mainly serves the functions of waterproofing and dust prevention. During use, the lock cylinder also needs to be protected from accidental impacts to avoid damage to the lock cylinder. Therefore, this utility model is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a dust cover for a car door lock cylinder to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust cover for an automotive door lock cylinder, comprising a lock cylinder mounting block, a lock cylinder body mounted in the center of the lock cylinder mounting block, a mounting ring plate provided on the front side of the lock cylinder mounting block, an mounting structure provided between the mounting ring plate and the lock cylinder mounting block, an adapter plate rotatably provided in the center of the mounting ring plate, the adapter plate being adapted to the lock cylinder body, a hinge tube hinged to the front side of the mounting ring plate, an impact cover provided on the front side of the hinge tube, a buffer structure provided between the impact cover and the hinge tube, the buffer structure comprising multiple buffer grooves circumferentially formed at the front end of the hinge tube, multiple buffer rods adapted to the buffer grooves fixed circumferentially on the back side of the impact cover, the buffer rods being slidably inserted into the buffer grooves, and a buffer spring connecting the buffer rods and the bottom of the buffer groove.
[0006] Preferably, the back side of the impact cover is fixed with an outer ring tube that slides and adapts to the outer wall of the hinge tube, the back side of the impact cover is fixed with an inner ring tube that slides and adapts to the inner wall of the hinge tube, and a plurality of reinforcing blocks are fixed around the middle of the back side of the impact cover.
[0007] Preferably, a handle block is fixed to the top of the outer wall of the hinge tube, and an arc buckle plate that is adapted to the mounting ring plate is fixed to the top of the outer wall of the hinge tube.
[0008] Preferably, the mounting structure includes a rotating rod circumferentially arranged on the front side of the lock cylinder mounting block, with a stop block symmetrically fixed to the outer wall of the rotating rod at its outer end, and a rod hole adapted to the rotating rod is provided on the mounting ring plate.
[0009] Preferably, the mounting structure further includes block holes symmetrically opened on the outer circumference of the rod hole, the block holes being adapted to the stop block, and multiple rotating grooves correspondingly opened on the front circumference of the mounting ring plate, the rotating grooves being adapted to the rotation trajectory of the stop block and the rotating rod as a whole.
[0010] Preferably, a magnetic block one is installed in the rotating groove, a magnetic block two that attracts the magnetic block one is installed on the stop block, a lock hole is opened in the lock cylinder body, and a through hole that matches the lock hole is opened in the adapter plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] The dust cover of this car door lock cylinder features a buffer structure. When the dust cover is accidentally impacted, the buffer rod slides within the buffer groove, compressing the buffer spring and causing it to contract a certain distance. The reaction force of the buffer spring helps to withstand a certain amount of impact force. At the same time, the reinforcing block strengthens the impact resistance of the dust cover. Furthermore, there is a certain distance between the dust cover and the lock cylinder body, which is equivalent to the length of the hinge tube. This ensures that the dust cover not only provides dust protection but also improves the resistance to impact force to a certain extent, preventing damage to the lock cylinder body and thus better protecting it. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a cross-sectional view of the present invention;
[0015] Figure 3 This is a schematic diagram of the first three-dimensional split structure of the present invention;
[0016] Figure 4 This is a schematic diagram of the second three-dimensional split structure of this utility model.
[0017] In the diagram: 1. Lock cylinder mounting block; 101. Lock cylinder body; 2. Mounting ring plate; 201. Adaptive rotating plate; 3. Rotating rod; 301. Stop block; 302. Rod hole; 303. Block hole; 304. Rotating groove; 4. Hinge tube; 401. Handle block; 402. Buffer groove; 5. Impact cover; 501. Outer ring tube; 502. Inner ring tube; 503. Reinforcing block; 504. Buffer rod; 505. Buffer spring. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] During the use of car door lock cylinders, it is usually necessary to protect the lock cylinder from external dust using a dust cover. The dust cover provided by this utility model is specifically designed to protect the lock cylinder body 101 from dust and impact. Before using this dust cover, preparatory work such as installation is required to ensure its normal use.
[0020] like Figures 1-4 As shown, this utility model provides a technical solution: a dust cover for a car door lock cylinder, including a lock cylinder mounting block 1, a lock cylinder body 101 mounted in the middle of the lock cylinder mounting block 1, a mounting ring plate 2 provided on the front side of the lock cylinder mounting block 1, a mounting structure provided between the mounting ring plate 2 and the lock cylinder mounting block 1, an adapter plate 201 rotatably provided in the middle of the mounting ring plate 2, the adapter plate 201 being adapted to the lock cylinder body 101, a hinge tube 4 hinged to the front side of the mounting ring plate 2, and a... An impact cover 5 is provided, and a buffer structure is provided between the impact cover 5 and the hinge tube 4. The buffer structure includes multiple buffer grooves 402 circumferentially opened on the front end of the hinge tube 4. Multiple buffer rods 504 adapted to the buffer grooves 402 are fixed on the circumference of the back side of the impact cover 5. The buffer rods 504 are slidably inserted into the buffer grooves 402. A buffer spring 505 is connected between the buffer rods 504 and the bottom of the buffer grooves 402. The buffer springs 505 and the buffer rods 504 play a role in compression and buffering.
[0021] In this embodiment, an outer ring tube 501 that slides and adapts to the outer wall of the hinge tube 4 is fixed on the back side of the impact cover 5, and an inner ring tube 502 that slides and adapts to the inner wall of the hinge tube 4 is fixed on the back side of the impact cover 5. Multiple reinforcing blocks 503 are fixed around the middle of the back of the impact cover 5. The reinforcing blocks 503 reinforce the impact cover 5. The outer ring tube 501, the inner ring tube 502 and the impact cover 5 are a whole, ensuring that there are no gaps between the impact cover 5 and the hinge tube 4. The hinge tube 4 and the impact cover 5 as a whole play a role in dustproofing and waterproofing.
[0022] In this embodiment, a handle block 401 is fixed to the top of the outer wall of the hinge tube 4, and an arc buckle plate that is compatible with the mounting ring plate 2 is fixed to the top of the outer wall of the hinge tube 4. Through the setting of the buffer structure, when the dust cover is accidentally impacted by the outside, the buffer rod 504 slides in the buffer groove 402 to compress the buffer spring 505 and retract a certain distance. The reaction force of the buffer spring 505 allows it to withstand a certain impact force. At the same time, the reinforcing block 503 plays a role in strengthening the impact resistance of the impact cover 5. There is a certain distance between the impact cover 5 and the lock cylinder body 101, which ensures that the dust cover can prevent dust while improving the resistance to impact force to a certain extent, avoiding damage to the lock cylinder body 101, and thus better protecting the lock cylinder body 101.
[0023] In this embodiment, the mounting structure includes a rotating rod 3 circumferentially arranged on the front side of the lock cylinder mounting block 1. A stop block 301 is symmetrically fixed to the outer wall of the rotating rod 3. A rod hole 302 adapted to the rotating rod 3 is opened on the mounting ring plate 2. The rotating rod 3 is rotatably connected to the lock cylinder mounting block 1 and is integrated with the stop block 301. The mounting structure also includes block holes 303 symmetrically opened on the outer circumference of the rod hole 302. The block holes 303 are adapted to the stop block 301. A plurality of rotating grooves 304 are correspondingly opened on the front circumference of the mounting ring plate 2. The rotating grooves 304 are adapted to the rotation trajectory of the stop block 301 and the rotating rod 3 as a whole, so as to ensure the installation operation of the mounting ring plate 2.
[0024] In this embodiment, a magnetic block 1 is installed in the rotating groove 304, and a magnetic block 2 that attracts the magnetic block 1 is installed on the stop block 301. A lock hole is opened in the lock cylinder body 101, and a through hole that matches the lock hole is opened in the adapter plate 201. The lock cylinder mounting block 1, the lock cylinder body 101, and the lock hole are existing technologies to ensure the installation position of the dust cover. The magnetic block 1 and the magnetic block 2 are existing technologies.
[0025] Working principle: When using this dust cover, it needs to be installed in position. By inserting the rotating rod 3 and the stop block 301 into the rod hole 302 and block hole 303 of the mounting ring plate 2, the rotating rod 3 and the stop block 301 are rotated, so that the stop block 301 rotates in the rotating groove 304. The magnetic block one and the magnetic block two are attracted to each other to complete the installation. During the use of this dust cover, the hinge tube 4 and the impact cover 5 are fixed in position by the arc buckle plate to ensure that the impact cover 5 is located on the front of the lock cylinder body 101. This dust cover has the functions of dustproof, waterproof and impact-resistant.
[0026] 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 embodiments and their equivalents.
Claims
1. A dust cover for a car door lock cylinder, comprising a lock cylinder mounting block (1), wherein a lock cylinder body (101) is mounted in the middle of the lock cylinder mounting block (1), characterized in that: A mounting ring plate (2) is provided on the front side of the lock cylinder mounting block (1). A mounting structure is provided between the mounting ring plate (2) and the lock cylinder mounting block (1). An adapter plate (201) is rotatably provided in the middle of the mounting ring plate (2). The adapter plate (201) is adapted to the lock cylinder body (101). A hinge tube (4) is hinged on the front side of the mounting ring plate (2). An impact cover (5) is provided on the front side of the hinge tube (4). A buffer structure is provided between the impact cover (5) and the hinge tube (4). The buffer structure includes multiple buffer grooves (402) circumferentially opened on the front end of the hinge tube (4). Multiple buffer bars (504) adapted to the buffer grooves (402) are fixed on the circumference of the back side of the impact cover (5). The buffer bars (504) are slidably inserted into the buffer grooves (402). A buffer spring (505) is connected between the buffer bars (504) and the bottom of the buffer grooves (402).
2. The dust cover for a car door lock cylinder according to claim 1, characterized in that: The impact cover (5) has an outer ring tube (501) that is adapted to slide against the outer wall of the hinge tube (4) and an inner ring tube (502) that is adapted to slide against the inner wall of the hinge tube (4) and a plurality of reinforcing blocks (503) that are fixed to the middle circumference of the back of the impact cover (5).
3. The dust cover for a car door lock cylinder according to claim 1, characterized in that: A handle block (401) is fixed to the top of the outer wall of the hinge tube (4), and an arc buckle plate that is compatible with the mounting ring plate (2) is fixed to the top of the outer wall of the hinge tube (4).
4. The dust cover for an automobile door lock cylinder according to claim 1, characterized in that: The installation structure includes a rotating rod (3) circumferentially arranged on the front side of the lock cylinder mounting block (1), and a stop block (301) is symmetrically fixed on the outer wall of the outer end of the rotating rod (3). The mounting ring plate (2) is provided with a rod hole (302) that matches the rotating rod (3).
5. A dust cover for an automobile door lock cylinder according to claim 4, characterized in that: The mounting structure also includes block holes (303) symmetrically opened on the outer circumference of the rod hole (302). The block holes (303) are adapted to the stop block (301). The mounting ring plate (2) has multiple rotating grooves (304) corresponding to the front circumference. The rotating grooves (304) are adapted to the rotation trajectory of the stop block (301) and the rotating rod (3) as a whole.
6. A dust cover for an automobile door lock cylinder according to claim 5, characterized in that: A magnetic block is installed in the rotating groove (304), and a magnetic block is installed on the stop block (301) that attracts the magnetic block. A lock hole is opened in the lock cylinder body (101), and a through hole that matches the lock hole is opened in the adapter plate (201).