Vehicle front door lock cylinder assembly with good applicability

Abstract

The utility model relates to a car front door lock cylinder assembly with good applicability, which comprises a door lock sleeve and a door lock cylinder positioned in the door lock sleeve, a key opening is arranged at the front end of the door lock cylinder, a driving lever is connected to the rear end of the door lock cylinder, a connecting table is integrally formed at the rear end of the door lock cylinder, and the connecting table comprises a hemispherical sleeve. A spherical inner cavity with a backward opening is formed in the hemisphere sleeve, a sphere movably matched in the spherical inner cavity is integrally formed at one end of the shifting rod, an inserting opening penetrating through the spherical inner cavity is formed in the hemisphere sleeve from left to right in a penetrating mode, a connecting penetrating hole corresponding to the inserting opening is formed in the sphere, and a cotter pin is inserted into the hemisphere sleeve in an interference mode in the inserting opening. According to the automobile front door lock cylinder assembly, the deflector rod is allowed to freely deflect within a certain angle range, so that the adaptability of the automobile front door lock cylinder assembly to the position deviation of connecting rod mechanisms of different automobile types is improved, and the flexibility and the reliability of installation are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, and in particular to a front door lock cylinder assembly with good applicability. Background Technology

[0002] The door lock cylinder assembly is a crucial component of a vehicle's safety system, affecting not only its safety performance but also the user experience. A traditional front door lock cylinder assembly typically includes a door lock sleeve, a door lock cylinder, and a lever. The lever, as a key component connecting the door lock cylinder to the internal linkage mechanism of the door, transmits the rotational motion of the door lock cylinder to the linkage mechanism, converting it into linear motion to open or close the door.

[0003] In existing designs, one end of the lever is fixedly connected to the lock cylinder, while the other end needs to be precisely aligned with the linkage mechanism. However, due to slight differences in the position of the linkage mechanism across different vehicle models, extremely high precision is required during installation. If the lever is not accurately aligned with the linkage mechanism, it may cause problems such as sluggish operation, reduced reliability, or even functional failure. Furthermore, once assembled, adjusting the lever's position due to manufacturing tolerances or other reasons is often difficult, limiting the universality and adaptability of this type of lock assembly across various vehicle models.

[0004] Therefore, to overcome the aforementioned shortcomings and meet the growing market demand for flexibility and compatibility in vehicle door lock cylinder assemblies, it is necessary to develop a new solution. This application aims to provide a front door lock cylinder assembly with good applicability, specifically relating to a design that allows for a certain angle of deflection in the connection position between the lever and the door lock cylinder. By introducing this adjustable connection mechanism, the product's adaptability to different vehicle models and assembly conditions can be significantly improved while ensuring reliability and ease of operation. Utility Model Content

[0005] This utility model proposes a front door lock cylinder assembly with good applicability, which solves the above-mentioned problems existing in the use of the prior art.

[0006] The technical solution of this utility model is implemented as follows: A front door lock cylinder assembly with good applicability includes a door lock sleeve and a door lock cylinder located inside the door lock sleeve. The front end of the door lock cylinder has a key opening, and the rear end of the door lock cylinder is connected to a lever. The rear end of the door lock cylinder is integrally formed with a connecting platform, and the connecting platform includes a hemispherical sleeve. The hemispherical sleeve has a spherical inner cavity with an opening facing backward. One end of the lever is integrally formed with a sphere that is movably fitted inside the spherical inner cavity. The hemispherical sleeve has an insertion port that penetrates the spherical inner cavity from left to right. The sphere has a connecting through hole corresponding to the insertion port. A cotter pin is interference-fitted into the insertion port of the hemispherical sleeve, and the sphere is rotatably fitted onto the cotter pin through the connecting through hole.

[0007] Preferably, the hemispherical sleeve has an elastic sleeve fixedly connected inside the spherical cavity, and the end of the sphere facing the elastic sleeve is fixedly connected to a post for insertion into the elastic sleeve.

[0008] Preferably, the insert is interference-fitted within the elastic sleeve.

[0009] Preferably, the sphere has an annular groove at one end facing the elastic sleeve, and the annular groove is used to accommodate one end of the elastic sleeve.

[0010] Preferably, the hemispherical sleeve has an installation groove inside the spherical cavity, the elastic sleeve is located in the installation groove, there is a swing gap between the outer wall of the elastic sleeve and the inner wall of the installation groove, and the end of the elastic sleeve located at the bottom of the installation groove is fixedly connected to an abutment ring that abuts against the inner wall of the installation groove.

[0011] Preferably, the elastic sleeve has a screw inside, the screw passes through the elastic sleeve and is threadedly connected to the hemispherical sleeve, and a washer is provided between the screw and the elastic sleeve.

[0012] Preferably, the sphere is fixedly connected to an upper limit rod for limiting the upward rotation angle of the lever and a lower limit rod for limiting the downward rotation angle of the lever.

[0013] In summary, the beneficial effects of this utility model are as follows:

[0014] 1. By designing one end of the lever as a ball and allowing it to move within the spherical cavity of a hemispherical sleeve on the integrally formed connecting platform at the rear of the door lock cylinder, combined with the design of a cotter pin passing through the ball and hemispherical sleeve, an adjustable connection between the lever and the door lock cylinder is achieved. This design allows the lever to deflect freely within a certain angle range, thereby improving the adaptability of the front door lock cylinder assembly to the positional deviations of the linkage mechanism in different vehicle models, and enhancing the flexibility and reliability of installation.

[0015] 2. The introduction of an elastic sleeve and insert structure makes the positioning of the ball within the spherical cavity more stable while maintaining necessary rotational flexibility. The elastic sleeve not only provides appropriate elasticity and support but also has a certain shock absorption effect, ensuring a tight fit between the ball and the hemispherical sleeve, preventing loosening or premature wear. It also effectively limits the rotation angle of the ball, ensuring that it can only be bent within a set angle range, thus improving the stability and safety of the system.

[0016] 3. The insertion post and the elastic sleeve adopt an interference fit, which further strengthens the connection between the two. The design of the annular groove helps to enhance the contact area and fitting accuracy between the ball and the elastic sleeve, so that the elastic sleeve can better wrap the insertion post and provide a more uniform pressure distribution. The annular groove can also help the elastic sleeve provide a certain guiding effect when the ball rotates, helping to maintain the limitation of the rotation angle.

[0017] 4. The presence of the mounting groove and swing clearance provides additional space for the elastic sleeve, allowing it to move freely within a certain range to adapt to changes in the ball's angle. The retaining ring acts as a limiter, preventing excessive deformation or displacement of the elastic sleeve under pressure, ensuring long-term reliability and consistency. Furthermore, the combined effect of the mounting groove and retaining ring ensures that the elastic sleeve effectively limits the ball's rotation angle, preventing it from exceeding safe limits.

[0018] 5. The design of the upper and lower limit rods effectively limits the maximum rotation angle of the lever, preventing it from exceeding the safe range and protecting the internal mechanical components from damage. This feature is crucial for ensuring the safety and stability of the door lock operation. The upper and lower limit rods work together with the elastic sleeve to ensure precise control of the rotation angle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 for Figure 1 A structural diagram showing the assembly from another angle;

[0022] Figure 3 This is the front view of the present invention;

[0023] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0024] Figure 5 This is an exploded structural diagram of the lever, elastic sleeve, cotter pin, and screw components in this utility model.

[0025] Figure 6 This is a schematic diagram of the exploded structure of this utility model.

[0026] In the diagram: 1. Door lock sleeve; 2. Door lock cylinder; 21. Keyhole; 3. Connecting platform; 31. Hemispherical sleeve; 32. Spherical inner cavity; 33. Socket; 34. Mounting groove; 35. Swing clearance; 4. Lever; 41. Ball; 42. Connecting through hole; 43. Insert post; 44. Annular groove; 45. Upper limit lever; 46. Lower limit lever; 5. Cotter pin; 6. Elastic sleeve; 61. Abutment ring; 7. Screw; 71. Washer; 81. Lock head cover; 82. Lock cylinder head cover; 83. Torsion spring; 84. Sliding tongue; 85. Lock plate spring; 86. Lock plate; 87. Torsion spring; 88. Retaining ring; 89. Shock-absorbing pad. Detailed Implementation

[0027] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example:

[0029] like Figures 1 to 6As shown, this utility model discloses a front door lock cylinder assembly with good applicability, including a lock head cover 81, a lock cylinder head cover 82, a sliding tongue 83, a door lock sleeve 1, a door lock cylinder 2, a lock plate spring 84, a lock plate 85, a door lock cylinder torsion spring 86, a retaining ring 87, a cotter pin 5, and a lever 4. The door lock cylinder 2 is fitted inside the door lock sleeve 1. A keyhole 21 is provided at the front end of the door lock cylinder 2, and the rear end of the door lock cylinder 2 is connected to the lever 4. These are components of a front door lock cylinder assembly known to those skilled in the art, and their structure and assembly will not be described in detail here. The specific structure of the connection between the door lock cylinder 2 and the lever 4, which this utility model aims to protect, is as follows: a connecting platform 3 is integrally formed at the rear end of the door lock cylinder 2. The 3 includes a hemispherical sleeve 31, and the hemispherical sleeve 31 has a spherical inner cavity 32 with an opening facing backward. In addition, one end of the lever 4 is integrally formed with a ball 41 that is movably fitted in the spherical inner cavity 32. Furthermore, the hemispherical sleeve 31 has a through-hole 33 that penetrates the spherical inner cavity 32 from left to right. The ball 41 has a connecting hole 42 that corresponds to the through-hole 33. The hemispherical sleeve 31 has a cotter pin 5 that is interference-fitted into the through-hole 33. The ball 41 is rotatably fitted onto the cotter pin 5 through the connecting hole 42. This structure allows the lever 4 to deflect freely within a certain angle range, thereby improving the adaptability of the front door lock cylinder 2 assembly to the positional deviation of the linkage mechanism of different vehicle models and enhancing the flexibility and reliability of installation.

[0030] Furthermore, an elastic sleeve 6 is fixedly connected inside the spherical inner cavity 32 of the hemispherical sleeve 31, and a post 43 for insertion into the elastic sleeve 6 is fixedly connected to one end of the ball 41 facing the elastic sleeve 6. It should be noted that the post 43 is interference-fitted into the elastic sleeve 6. In addition, an annular groove 44 is opened at the end of the ball 41 facing the elastic sleeve 6, which is used for one end of the elastic sleeve 6 to fit inside. The above structure makes the positioning of the ball 41 in the spherical inner cavity 32 more stable, while maintaining the necessary rotational flexibility of the ball 41, effectively limiting the rotation angle of the ball 41, and improving the stability and safety of the system.

[0031] The specific structure of the elastic sleeve 6 installed inside the hemispherical sleeve 31 is as follows: The hemispherical sleeve 31 has an installation groove 34 inside the spherical inner cavity 32. The elastic sleeve 6 is located within the installation groove 34. A swing gap 35 exists between the outer wall of the elastic sleeve 6 and the inner wall of the installation groove 34. The installation groove 34 and the swing gap 35 provide additional space for the elastic sleeve 6, allowing it to move freely within a certain range to adapt to changes in the angle of the sphere 41. One end of the elastic sleeve 6 located at the bottom of the installation groove 34 is fixedly connected to a retaining ring 61 that abuts against the inner wall of the installation groove 34. The retaining ring 61 serves a limiting function, preventing excessive deformation or displacement of the elastic sleeve 6 under pressure, ensuring long-term reliability and consistency. Furthermore, a screw 7 is provided inside the elastic sleeve 6. The screw 7 passes through the elastic sleeve 6 and is threadedly connected to the hemispherical sleeve 31. A washer 71 is provided between the screw 7 and the elastic sleeve 6. The use of the screw 7 and the washer 71 facilitates the installation and fixation of the elastic sleeve 6, preventing loosening or detachment due to long-term use.

[0032] The ball 41 is fixedly connected to an upper limit rod 45 for limiting the upward rotation angle of the lever 4 and a lower limit rod 46 for limiting the downward rotation angle of the lever 4. The design of the upper and lower limit rods 46 effectively limits the maximum rotation angle of the lever 4, prevents it from exceeding the safe range, and protects the internal mechanical parts from damage.

[0033] The front door lock cylinder 2 assembly is activated by inserting a key into the keyhole 21 and rotating the lock cylinder 2, which in turn drives the lever 4. Rotating the lever 4 at a certain angle unlocks the door by engaging the linkage mechanism. The ball 41 at one end of the lever 4 is located within the spherical cavity 32 of the hemispherical sleeve 31 at the rear end of the lock cylinder 2, secured by a cotter pin 5, but allowed to deflect freely within a certain angle range. Note that this deflection must not interfere with subsequent unlocking control of the linkage mechanism. When adjusting the relative position of the lever 4 and the linkage mechanism, precise alignment can be achieved through appropriate angle deflection without affecting the function of the lock cylinder 2.

[0034] The elastic sleeve 6 between the ball 41 and the hemispherical sleeve 31 provides flexible support, ensuring that the ball 41 can deflect moderately when subjected to external force and return to its original position after the external force disappears. The screw 7 and washer 71 inside the elastic sleeve 6 further enhance this function, ensuring long-term stability and reliability. More importantly, the design of the elastic sleeve 6 restricts the rotation of the ball 41 to a limited angle range, which not only improves operational safety but also extends the service life of the components. The upper and lower limit rods 46 limit the maximum rotation angle of the lever 4, preventing damage from excessive twisting and ensuring that the system operates within a safe and reliable parameter range.

[0035] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-performance vehicle front door lock cylinder assembly, comprising a door lock sleeve and a door lock cylinder located within the door lock sleeve, wherein a keyhole is provided at the front end of the door lock cylinder and a lever is connected to the rear end of the door lock cylinder, characterized in that: The rear end of the door lock cylinder is integrally formed with a connecting platform, which includes a hemispherical sleeve. The hemispherical sleeve has a spherical inner cavity with an opening facing backward. One end of the lever is integrally formed with a sphere that is movably fitted into the spherical inner cavity. The hemispherical sleeve has a through-hole that penetrates the spherical inner cavity from left to right. The sphere has a connecting hole that corresponds to the through-hole. A cotter pin is inserted into the hemispherical sleeve through the through-hole. The sphere is rotatably fitted onto the cotter pin through the connecting hole.

2. The front door lock cylinder assembly with good applicability according to claim 1, characterized in that: The hemispherical sleeve has an elastic sleeve fixedly connected inside the spherical cavity, and the end of the sphere facing the elastic sleeve is fixedly connected to a post for insertion into the elastic sleeve.

3. The front door lock cylinder assembly with good applicability according to claim 2, characterized in that: The insert is interference-fitted within the elastic sleeve.

4. The front door lock cylinder assembly with good applicability according to claim 2, characterized in that: The sphere has an annular groove at one end facing the elastic sleeve, and the annular groove is used to accommodate one end of the elastic sleeve.

5. A vehicle front door lock cylinder assembly with good applicability according to claim 2, characterized in that: The hemispherical sleeve has an installation groove inside the spherical cavity. The elastic sleeve is located in the installation groove. There is a swing gap between the outer wall of the elastic sleeve and the inner wall of the installation groove. The end of the elastic sleeve located at the bottom of the installation groove is fixedly connected to an abutment ring that abuts against the inner wall of the installation groove.

6. The front door lock cylinder assembly with good applicability according to claim 2, characterized in that: The elastic sleeve has a screw inside, which passes through the elastic sleeve and is threaded to the hemispherical sleeve. A washer is provided between the screw and the elastic sleeve.

7. A vehicle front door lock cylinder assembly with good applicability according to claim 1 or 2, characterized in that: The sphere is fixedly connected to an upper limit rod for limiting the upward rotation angle of the lever and a lower limit rod for limiting the downward rotation angle of the lever.

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