Lock head structure with compact matching structure

By incorporating protrusions and concentric components into the lock head structure, the problem of sliding instability caused by errors in the length of the male latch rod is solved, achieving stable insertion and convenient operation of the lock head structure.

CN224149315UActive Publication Date: 2026-04-21WENZHOU HAOSHI LIGHT IND PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU HAOSHI LIGHT IND PRODUCTS CO LTD
Filing Date
2025-04-02
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the existing lock head structure, the length error of the male latch rod causes unstable sliding, which affects the depth of the female latch and makes operation inconvenient.

Method used

A protrusion is provided in the bottom shell to press the male locking bar firmly. The plastic material design of the sleeve and bottom shell ensures the stability of the male locking bar within the lock head structure, and the operation is improved by concentric parts and anti-slip texture.

Benefits of technology

It improves the success rate of the connection between the lock head structure and the finished female buckle, as well as the locking effect, and enhances the ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a compactly matched lock head structure, which comprises a sleeve shell, a male buckle lock rod and a bottom shell, the sleeve shell is provided with a longitudinally penetrating channel, the male buckle lock rod is inserted into the channel, the middle part of the bottom shell is provided with a bulge, the bottom shell is matched with the bottom of the sleeve shell, the bulge is mutually propped against one end of the male buckle lock rod, and the other end of the male buckle lock rod is inserted into the bottom shell. And the other end of the male buckle locking rod penetrates through the end part of the channel and extends towards the outer side. The bottom shell is provided with the protrusions, the protrusions can be used for abutting against the male buckle locking rod, the male buckle locking rod is prevented from sliding up and down in the lock head structure, the inserting depth of the lock head structure is guaranteed, the inserting and locking success rate of the lock head structure and a female buckle finished product is improved, and meanwhile the locking effect and the operation convenience rate are improved.
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Description

Technical Field

[0001] This utility model relates to the field of high-security sealing device technology, specifically a lock head structure with a compact and well-fitting design. Background Technology

[0002] High-security seals are a type of sealing device used on containers, trucks, vans, and other similar vehicles. They are designed to be sealed in a one-time manner, preventing damage and tampering with traditional lead seals, which are less robust and prone to reverting to their original state after being broken.

[0003] In the current production of male buckle lock rods, length errors are prone to occur. When the male buckle lock rod is installed with a plastic shell to form a lock head structure, the male buckle lock rod with length error slides up and down unstablely within the finished product. Because the sliding male buckle lock rod reduces the insertion depth of the female buckle finished product, it is not easy to insert and lock with the female buckle finished product. This means that the operator needs to insert and check the locking effect multiple times, which undoubtedly reduces the convenience of operation. Utility Model Content

[0004] The purpose of this invention is to provide a lock head structure with a compact and well-fitting design, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a compact and well-fitting lock head structure, comprising a housing, a male locking rod, and a bottom housing. The housing is provided with a longitudinally penetrating channel, and the male locking rod is inserted into the channel. The bottom housing has a protrusion in the middle, and the bottom housing is fitted to the bottom of the housing. The protrusion abuts against one end of the male locking rod, while the other end of the male locking rod passes through the end of the channel and extends outward.

[0006] Preferably, the male buckle is provided with a locking part at the end away from the protrusion, the locking part is provided with an annular groove, and the outer end of the locking part is conical or frustum-shaped.

[0007] Preferably, the surface of the casing is provided with anti-slip texture.

[0008] Preferably, the bottom of the casing is further provided with a groove, which is close to the bottom shell.

[0009] Preferably, a concentric component is also fitted inside the housing. The concentric component is provided with a concentric hole through which the male buckle locking rod can pass. The concentric hole is concentric with the channel, and the male buckle locking rod passes through the concentric hole and the channel in sequence.

[0010] Preferably, both the outer shell and the bottom shell are made of plastic, and the bottom shell is integrally formed with the protrusion.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model features a protrusion on the bottom shell, which can be used to press the male locking rod firmly against the lock head structure, preventing it from sliding up and down. This ensures the insertion depth of the lock head structure, improves the success rate of the lock head structure and the female locking product, and enhances the locking effect and ease of operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of an embodiment of the present invention.

[0016] The reference numerals and names in the figure are as follows:

[0017] 1. Outer shell; 2. Male locking rod; 3. Bottom shell; 4. Channel; 5. Protrusion; 6. Locking part; 7. Annular groove; 8. Lock cylinder structure; 9. Slot; 10. Concentric part; 11. Concentric hole position. 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] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Please see Figures 1 to 2This utility model provides an embodiment of a compact and well-fitting lock head structure, including a housing 1, a male latching rod 2, and a bottom housing 3. Both the housing 1 and the bottom housing 3 are made of plastic. The male latching rod 2 is inserted into a longitudinally penetrating channel 4 in the housing 1. A protrusion 5 is provided in the middle of the bottom housing 3. The bottom housing 3 is fitted to the bottom of the housing 1, and the protrusion 5 abuts against one end of the male latching rod 2. The protrusion 5 can press the male latching rod 2 tightly to prevent it from sliding up and down in the lock head structure. The other end of the male latching rod 2 passes through the end of the channel and extends outward to ensure the insertion depth of the lock head structure, improve the success rate of the lock head structure and the female latch, and enhance the locking effect and ease of operation.

[0021] Furthermore, the plastic material has excellent deformation properties. When the protrusion 5 presses against the male locking rod 2, the bottom shell 3 can achieve a certain degree of curvature deformation, while pressing against the male locking rod 2 and preventing the sleeve 1 and bottom shell 3 from being unable to fit together due to the overall length of the protrusion 5 and the male locking rod 2 being too long.

[0022] The male locking rod 2 has a locking part 6 at the end away from the protrusion 5. The locking part 6 is mainly a structure for locking. The locking part 6 has an annular groove 7, and the outer end of the locking part 6 is conical or frustum-shaped. In this embodiment, the outer end of the locking part 6 is frustum-shaped.

[0023] refer to Figures 1 to 3 The diagram is a schematic representation of an embodiment of this technical solution. It also includes a lock cylinder structure 8, and at least two engaging metal strips (not shown) are provided inside the lock cylinder structure 8. The frustum-shaped part at the outer end of the latch 6 can be inserted between the two engaging metal strips. The frustum-shaped structure expands outward. When the engaging metal strip moves to the annular groove 7, the engaging metal strip retracts and resets. The engaging metal strip locks and engages with the annular groove 7, so that the male latch rod 2 and the lock cylinder structure 8 achieve a latching effect.

[0024] Furthermore, the surface of the cover 1 is provided with anti-slip texture (not shown in the figure), which improves the user's grip and facilitates the assembly of the cover 1 and the bottom shell 3.

[0025] Furthermore, a slot 9 is provided at the bottom of the casing 1. The slot 9 is close to the bottom shell 3. The slot 9 allows rod-shaped items to be inserted. After the rod-shaped items are inserted into the slot 9, the bottom shell 3 can be pried off the casing 1.

[0026] The housing 1 is also fitted with a concentric component 10, which has a concentric hole 11 through which the male locking rod 2 can pass. The concentric hole 11 is concentric with the channel 4. The male locking rod 2 passes through the concentric hole 11 and the channel 4 in sequence. The above structure can prevent the male locking rod 2 from sliding to the circumference, further improving the connection stability of the male locking rod 2, while improving the success rate of the lock head structure and the female locking product to be plugged in and locked, and improving the locking effect and the ease of operation.

[0027] Furthermore, the bottom shell 3 and the protrusion 5 are integrated into one piece, and the protrusion 5 is also made of plastic.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A compactly fitted lock head structure comprising a cover, a male lock rod and a bottom shell, characterized in that: The casing has a longitudinal through-channel, the male locking rod is inserted into the channel, the bottom shell has a protrusion in the middle, the bottom shell is fitted to the bottom of the casing, and the protrusion abuts against one end of the male locking rod, while the other end of the male locking rod passes through the end of the channel and extends outward.

2. A compactly configured lock cylinder structure according to claim 1, characterized in that: The male buckle is provided with a locking part at the end away from the protrusion. The locking part is provided with an annular groove, and the outer end of the locking part is conical or frustum-shaped.

3. A compactly configured lock cylinder structure according to claim 1, characterized in that: The surface of the casing is provided with anti-slip texture.

4. A compactly configured lock cylinder structure according to claim 1, characterized in that: The bottom of the casing is also provided with a groove, which is close to the bottom shell.

5. A compactly configured lock cylinder structure according to claim 1, wherein: The housing is also fitted with a concentric component, which has a concentric hole through which the male buckle locking rod can pass. The concentric hole is concentric with the channel, and the male buckle locking rod passes through the concentric hole and the channel in sequence.

6. A compactly configured lock cylinder structure according to claim 1, wherein: Both the outer shell and the bottom shell are made of plastic, and the bottom shell is integrally formed with the protrusion.