A lock bolt assembly for a roof luggage compartment lock

Abstract

The application discloses a lock pin assembly of a roof trunk lock, which comprises a lock bolt and a lock pin assembly, the lock pin assembly comprising a transverse sliding plate, a lock pin plug rod and a lock pin sleeve, the lock pin plug rod being fixedly inserted in a U-shaped connecting shell of the transverse sliding plate, the coinciding length of the two being 1 / 2 of the length of the plug rod, and the two being fixedly connected in a seamless mode through industrial special adhesive glue, a structure for preventing the lock pin plug rod from being separated from the lock pin sleeve is arranged between the lock pin plug rod and the lock pin sleeve, and the axial separation of the lock pin sleeve can be limited. The lock pin plug rod is made of a high-strength solid steel column with a diameter of 5-8 mm. The lock pin assembly has the advantages of reasonable structure, high practicability, enhanced lock pin connecting strength, avoided loosening and fracture, prolonged service life of the lock, reduced safety hazards and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of roof box lock structures, specifically to a locking pin assembly for a roof box lock. Background Technology

[0002] The structural stability of a roof lock directly affects its safety and lifespan. Currently, the connection between the locking pin and the sliding plate in existing roof locks generally suffers from weak connections and insufficient strength (e.g., Figure 1-4 (As shown).

[0003] The applicant's authorized patent (CN115126355B, utility model name: roof box) discloses that the first locking pin assembly of the combination lock (the part that cooperates with the lock tongue, which is the locking pin that this invention aims to improve) and the transverse sliding plate are injection molded as one piece. There is a simple connecting shell on the transverse sliding plate. The locking pin is only attached to the connecting shell by its end face. The contact area is very small and there is no additional reinforcement structure. The connection part is prone to stress concentration and damage.

[0004] After prolonged use, the locking pin is repeatedly inserted and pulled out and tightened, which will subject it to axial and radial forces. It is easy for it to loosen, deform or even break, leading to lock failure and loose lid. This may cause items to be lost or traffic safety hazards. Therefore, an improved solution is needed to enhance the connection strength and make the lock more stable. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art.

[0006] This application provides a locking pin assembly for a roof rack lock, which includes a locking tongue and a locking pin assembly. The locking pin assembly includes a sliding plate, a locking pin rod, and a locking pin sleeve. The locking pin rod is fixed and inserted into the top of the sliding plate, and the locking pin sleeve is detachably sleeved on the locking pin rod.

[0007] Furthermore, a connecting shell is fixedly provided on the top of the transverse sliding plate, and one end of the locking pin is inserted and fixed in the connecting shell.

[0008] Furthermore, the overlap length between the locking pin and the connecting shell is 1 / 2 of the length of the locking pin itself.

[0009] Furthermore, the connecting shell is U-shaped with its opening facing the axis perpendicular to the locking pin, and the locking pin is inserted and fixed in the opposite side walls of the connecting shell.

[0010] Furthermore, the locking pin is fixedly connected to the inner wall of the connecting shell by industrial special adhesive, and there are no gaps on the bonding surface.

[0011] Furthermore, an anti-disengagement structure is provided between the locking pin rod and the locking pin sleeve, the anti-disengagement structure being used to restrict the locking pin sleeve from axially disengaging from the locking pin rod.

[0012] Furthermore, the anti-detachment structure includes an anti-detachment groove, an elastic plate, and a locking block. The anti-detachment groove is formed on the outer wall of the locking pin rod. One end of the elastic plate is fixedly set on the inner wall of the locking pin sleeve, and the other end is integrally formed with a locking block. Under the action of the elastic plate's own elastic force, when the locking pin sleeve is fitted and installed on the locking pin rod at the preset assembly position, the locking block and the anti-detachment groove engage with each other to achieve anti-detachment limitation between the locking pin sleeve and the locking pin rod.

[0013] Furthermore, the anti-detachment groove includes a guide section and a snap-fit ​​section. The guide section extends axially along the locking pin rod and is parallel to the axis of the locking pin rod. The snap-fit ​​section is connected to the inner end of the guide section through a transition section. The transition section extends circumferentially to one side along the locking pin rod. The snap-fit ​​section continues to extend circumferentially along the locking pin rod and is offset from the guide section. The groove depth of the snap-fit ​​section is greater than the groove depth of the transition section.

[0014] Furthermore, the locking block has a guide slope on the bottom side facing the anti-detachment groove. The guide slope is used to guide the locking block to slide into the anti-detachment groove and complete the locking when the locking pin sleeve is installed.

[0015] Furthermore, the locking pin is made of a high-strength solid steel column with a diameter of 5-8mm.

[0016] The beneficial effects of this utility model are as follows: 1. By using the locking pin, connecting shell, and industrial adhesive, the locking pin is inserted into the two side walls of the connecting shell and overlaps with 1 / 2 of the length of the connecting shell. Then, the adhesive is used to fix it without gaps, which disperses the stress and enhances the strength of the connection between the locking pin and the transverse sliding plate, preventing loosening, deformation and breakage. 2. By using the overall structure of the locking pin assembly, the detachable fit between the locking pin sleeve and the locking pin rod, and the anti-disengagement structure, the connection is simplified, the processing difficulty is reduced, and the assembly stability is ensured, thereby achieving the effects of reasonable structure, controllable cost, strong adaptability, and high practicality. 3. By combining the locking pin and connecting shell for fixation, the U-shaped connecting shell for limiting and preventing detachment, the problem of weak connection is solved, thereby extending the service life of the lock, reducing safety hazards, and providing users with a reliable and convenient user experience. Attached Figure Description

[0017] Figure 1 A 3D diagram of a roof rack lock based on existing technology; Figure 2 A 3D diagram of a roof rack lock based on existing technology; Figure 3A 3D diagram of a roof rack lock based on existing technology; Figure 4 A 3D diagram of a roof rack lock based on existing technology; Figure 5 This is a perspective view of the locking pin assembly of the roof luggage compartment lock in the embodiments of this application; Figure 6 This is a perspective view of the locking pin assembly of the roof luggage compartment lock in the embodiments of this application; Figure 7 for Figure 6 A magnified view of the structure at point A in the middle; Figure 8 This is a perspective view of the locking pin sleeve in an embodiment of this application.

[0018] Figure Labels 1-Lock tongue, 2-Lock pin assembly, 3-Transverse sliding plate, 4-Lock pin insertion rod, 5-Lock pin sleeve, 6-Connecting shell, 7-Anti-detachment structure, 8-Anti-detachment groove, 9-Elastic plate, 10-Clocking block, 11-Guide section, 12-Transition section, 13-Snap-fit ​​section, 14-Guide slope. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0020] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0021] The roof rack lock provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0022] Example 1: This application provides a locking pin assembly for a roof rack lock, which includes a locking tongue 1 and a locking pin assembly 2. The locking pin assembly 2 includes a transverse sliding plate 3, a locking pin rod 4, and a locking pin sleeve 5. The locking pin rod 4 is fixedly installed and inserted into the top of the transverse sliding plate 3, and the locking pin sleeve 5 is detachably sleeved on the locking pin rod 4.

[0023] like Figures 5 to 8 As shown, due to the aforementioned structure, the locking pin rod 4 is connected to the transverse sliding plate 3 using a "fixed + insertion" method. The core is to ensure a firm connection through sufficient insertion depth, eliminating the need for the original injection molding process. This fundamentally solves the problem of stress concentration at the connection point during one-piece molding, providing a stable foundation for locking and unlocking the lock. The locking pin sleeve 5 and the locking pin rod 4 are fitted with a clearance and can be disassembled. Their dimensions are matched, ensuring that the forward and backward movement of the locking pin rod 4 is not affected (meeting the locking and unlocking requirements) while allowing for flexible disassembly and assembly. When the lock is in operation, the locking pin sleeve 5 moves along with the locking pin rod 4, assisting the locking pin rod 4 and the latch 1 in limiting their movement and reducing wear on the locking pin rod 4. For later maintenance, the locking pin sleeve 5 can be directly removed from one end of the locking pin rod 4 for replacement without disassembling the entire locking pin assembly 2.

[0024] Example 2: In this embodiment, in addition to the structural features of the aforementioned embodiments, a connecting shell 6 is fixedly provided on the top of the transverse sliding plate 3, and one end of the locking pin rod 4 is inserted and fixed in the connecting shell 6.

[0025] In this embodiment of the application, the overlap length between the locking pin 4 and the connecting shell 6 is 1 / 2 of the length of the locking pin 4 itself.

[0026] In this embodiment of the application, the connecting shell 6 is generally U-shaped, with the opening facing the axis perpendicular to the locking pin 4, and the locking pin 4 is inserted and fixed in the opposite side walls of the connecting shell 6.

[0027] In this embodiment of the application, the locking pin 4 is fixedly connected to the inner wall of the connecting shell 6 by industrial special adhesive, and there is no gap on the bonding surface.

[0028] like Figures 5 to 8As shown, due to the aforementioned structure, the connection strength between the locking pin 4 and the transverse sliding plate 3 is enhanced through the combination of limiting, fixing, and increasing the contact area. The opening of the U-shaped connecting shell 6 is perpendicular to the axis of the locking pin 4. During operation, the locking pin 4 is fixed by the two side walls to prevent it from swaying left and right and to avoid force distortion at the connection point. The locking pin 4 and the connecting shell 6 overlap by half their length, which increases the contact area between them and disperses the force on the locking pin 4. The industrial-grade adhesive provides seamless fixing, filling tiny gaps and making the connection more secure, so that the locking pin 4, the connecting shell 6, and the transverse sliding plate 3 form an integral force-bearing structure. During operation, the insertion and extraction forces and locking forces on the locking pin 4 can be evenly transmitted to the transverse sliding plate 3 through the connecting shell 6, avoiding force concentration at the connection point.

[0029] Example 3: In this embodiment, in addition to the structural features of the aforementioned embodiments, an anti-detachment structure 7 is provided between the locking pin rod 4 and the locking pin sleeve 5. The anti-detachment structure 7 is used to restrict the locking pin sleeve 5 from axially disengaging from the locking pin rod 4.

[0030] In this embodiment of the application, the anti-detachment structure 7 includes an anti-detachment groove 8, an elastic plate 9, and a locking block 10. The anti-detachment groove 8 is formed on the outer wall of the locking pin rod 4. One end of the elastic plate 9 is fixedly disposed on the inner wall of the locking pin sleeve 5, and the other end is integrally formed with the locking block 10. Under the action of the elastic plate 9's own elastic force, when the locking pin sleeve 5 is fitted and installed on the locking pin rod 4 at the preset assembly position, the locking block 10 and the anti-detachment groove 8 engage with each other to realize the anti-detachment limit of the locking pin sleeve 5 and the locking pin rod 4.

[0031] In this embodiment of the application, the anti-detachment groove 8 includes a guide section 11 and a snap-fit ​​section 13. The guide section 11 extends axially along the locking pin rod 4 and is parallel to the axis of the locking pin rod 4. The snap-fit ​​section 13 is connected to the inner end of the guide section 11 through a transition section 12. The transition section 12 extends to one side circumferentially along the locking pin rod 4. The snap-fit ​​section 13 continues to extend circumferentially along the locking pin rod 4 and is offset from the guide section 11. The groove depth of the snap-fit ​​section 13 is greater than the groove depth of the transition section 12.

[0032] In this embodiment of the application, the locking block 10 is provided with a guide slope 14 on the bottom side facing the anti-detachment groove 8. The guide slope 14 is used to guide the locking block 10 to slide into the anti-detachment groove 8 and complete the locking when the locking pin sleeve 5 is installed.

[0033] like Figures 5 to 8As shown, due to the above structure, the elastic deformation and return to original shape of the elastic plate 9 allow the locking block 10 to be locked in the anti-disengagement groove 8 and also to be disassembled, preventing the locking pin sleeve 5 from falling off. During assembly, the locking pin sleeve 5 is put on the locking pin insertion rod 4. The guide slope 14 of the locking block 10 is pressed against the edge of the anti-disengagement groove 8, pushing the elastic plate 9 to deform. The locking block 10 is guided to slide in along the guide section 11. The guide slope 14 can reduce the resistance during assembly. When it is put into the designated position, the locking pin sleeve 5 is rotated, so that the locking block 10 passes through the transition section 12 and enters the locking section 13. The elastic plate 9 is no longer pressed and returns to its original shape, pushing the locking block 10 to be locked in the deeper locking section 13. Through the locking block 10 and the locking section 13 The size matching prevents the locking pin sleeve 5 from falling off. When the lock is working, the locking pin sleeve 5 is subjected to force in the front and back direction, and the locking block 10 sticks to the inner wall of the locking section 13. The elasticity of the elastic plate 9 makes the locking block 10 lock more tightly, preventing the locking pin sleeve 5 from falling off. When disassembling, pry the elastic plate 9 outward to deform it, and the locking block 10 leaves the locking section 13. Then, reverse the locking pin sleeve 5 so that the locking block 10 enters the guide section 11 along the transition section 12. Then, move the locking pin sleeve 5 along the axis of the locking pin rod 4 so that the locking block 10 slides along the guide section 11 until it disengages from the guide section 11. The locking pin sleeve 5 can then be removed. This not only ensures reliable anti-disengagement but also facilitates disassembly and assembly. Combined with the previous structure, it further improves the stability and safety of the locking pin assembly 2.

[0034] Example 4: In this embodiment, in addition to the structural features of the aforementioned embodiments, the locking pin rod 4 is made of a high-strength solid steel column with a diameter of 5-8mm.

[0035] like Figures 5 to 8 As shown, due to the aforementioned structure, the high-strength solid steel column used as the lock cylinder rod possesses high strength and is not easily broken. It resists the forces during insertion, extraction, and locking, and is not easily deformed or broken. It is more wear-resistant and durable than the original ordinary material lock pin. The diameter of 5-8 mm balances strength and weight. If the diameter is too small, the strength will be insufficient; if it is too large, it will increase the burden on the transverse sliding plate 3 and affect its movement flexibility. This size ensures that the lock pin rod 4 can stably withstand the forces during operation and move smoothly with the transverse sliding plate 3. During operation, the various forces on the lock pin rod 4 can be borne by its own material. Combined with the force dispersion of the connecting shell 6, it avoids excessive local stress. In conjunction with the preceding structures, it further extends the service life of the lock and improves its reliability.

[0036] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0037] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A locking pin assembly for a roof rack lock, comprising a locking tongue and a locking pin assembly, characterized in that, The locking pin assembly includes a transverse sliding plate, a locking pin insert, and a locking pin sleeve. The locking pin insert is fixed and inserted into the top of the transverse sliding plate, and the locking pin sleeve is detachably sleeved on the locking pin insert. A connecting shell is fixedly provided on the top of the transverse sliding plate, and one end of the locking pin is inserted and fixed in the connecting shell; The overlap length between the locking pin and the connecting shell is 1 / 2 of the length of the locking pin itself; The locking pin is fixedly connected to the inner wall of the connecting shell by industrial special adhesive, and there are no gaps on the bonding surface.

2. The locking pin assembly for a roof rack lock according to claim 1, characterized in that, The connecting shell is U-shaped, with its opening facing the axis perpendicular to the locking pin. The locking pin is inserted and fixed in the opposite side walls of the connecting shell.

3. The locking pin assembly for a roof rack lock according to claim 1, characterized in that, An anti-detachment structure is provided between the locking pin rod and the locking pin sleeve, which is used to prevent the locking pin sleeve from axially disengaging from the locking pin rod.

4. The locking pin assembly for a roof rack lock according to claim 3, characterized in that, The anti-detachment structure includes an anti-detachment groove, an elastic plate, and a locking block. The anti-detachment groove is formed on the outer wall of the locking pin rod. One end of the elastic plate is fixedly set on the inner wall of the locking pin sleeve, and the other end is integrally formed with a locking block. Under the action of the elastic plate's own elastic force, when the locking pin sleeve is fitted and installed on the locking pin rod at the preset assembly position, the locking block and the anti-detachment groove engage with each other to achieve the anti-detachment limit between the locking pin sleeve and the locking pin rod.

5. The locking pin assembly for a roof rack lock according to claim 4, characterized in that, The anti-detachment groove includes a guide section and a snap-fit ​​section. The guide section extends along the axial direction of the locking pin and is parallel to the axis of the locking pin. The snap-fit ​​section is connected to the inner end of the guide section through a transition section. The transition section extends to one side along the circumference of the locking pin. The snap-fit ​​section continues to extend along the circumference of the locking pin and is offset from the guide section. The groove depth of the snap-fit ​​section is greater than the groove depth of the transition section.

6. The locking pin assembly for a roof rack lock according to claim 4, characterized in that, The locking block has a guide slope on the side facing the bottom of the anti-detachment groove. The guide slope is used to guide the locking block to slide into the anti-detachment groove and complete the locking when the locking pin sleeve is installed.

7. The locking pin assembly for a roof rack lock according to claim 1, characterized in that, The locking pin is made of high-strength solid steel column with a diameter of 5-8mm.

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