High security plastic seal with elastic arm lock tooth structure lock cylinder

Abstract

The utility model discloses a high security plastic seal with elastic arm lock tooth structure lock core, including lock body subassembly and lock core, wherein, the lock core is plastic lock core and is set apart from lock body subassembly, the lock body subassembly includes lock body and lock bar, be equipped with lock core cavity on the lock body near lock bar, the plastic lock core is located in the lock core cavity, the plastic lock core is closed type annular body and forms the open and close type elastic arm to bend inwards, the open and close type elastic arm distributes along the radial distribution of lock bar. The utility model provides a high security plastic seal with elastic arm lock tooth structure lock core, and the security and recycling compatibility problem are solved through split type lock core structure and radial elastic system, adopt the open and close type elastic arm to provide radial locking force, and the convenient production, and the locking force size can be conveniently adjusted through the size of the opening, thereby greatly improving the locking ability, and reduce the cost.

Description

Technical Field

[0001] This utility model relates to a plastic seal, and more particularly to a high-security plastic seal with a lock core having an elastic arm locking tooth structure. Background Technology

[0002] The plastic seal is made of ABS or PP, and the lock body uses a limiting structure, relying on the inherent elasticity of the plastic to lock in place. Plastic seals are mainly used in containers, trucks, vans, and other similar devices to seal packages and prevent theft. Existing plastic seals generally consist of a lock body and a lock cylinder. One side of the lock body is a marking surface, which can be customized with laser engraving, markings, codes, barcodes, colors, and other information. The lock body is roughly round or square, and contains a lock cylinder with a cover plate to secure it. Existing plastic seals mainly suffer from three types of technical defects: 1. One-piece plastic seal Although it is easy to recycle, it relies on the elastic locking of the locking teeth, which does not adequately shield the locking part; therefore, it is prone to elastic failure and can be illegally unlocked or forcibly damaged, resulting in insufficient security.

[0003] 2. Metal lock cylinder composite seal Due to differences in materials, manual disassembly and separation are required, resulting in low recycling efficiency. This greatly hinders the effective recycling and reuse of plastic and metal parts, reducing overall environmental benefits.

[0004] 3. Traditional split plastic lock cylinder The use of an axial or angled elastic structure for the locking rod results in physical limitations in locking and anti-pry capabilities, leading to insufficient safety performance. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a high-security plastic seal with a lock core featuring a spring arm locking tooth structure, which can solve the problems of security and recycling compatibility, greatly improve locking ability, and reduce cost.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide a high-security plastic seal with a lock cylinder having a spring arm locking tooth structure, including a lock body assembly and a lock cylinder, wherein the lock cylinder is a plastic lock cylinder and is separately set from the lock body assembly, the lock body assembly includes a lock body and a lock rod, the lock body has a lock cylinder cavity near the lock rod, the plastic lock cylinder is disposed in the lock cylinder cavity, the plastic lock cylinder is a closed ring and is bent inward to form an opening and closing spring arm, and the opening and closing spring arm is distributed radially along the lock rod.

[0007] Furthermore, the opening and closing elastic arm includes a circular segment having an opening and forming two support arms.

[0008] Furthermore, the opening angle of the annular segment is 3-30 degrees.

[0009] Furthermore, the plastic lock core is a ring with an opening, and forms a concentric circle with the ring segment. The opening and closing elastic arm and the plastic lock core are integrally injection molded.

[0010] Furthermore, the opening angle of the plastic lock cylinder is greater than or equal to the opening angle of the annular segment.

[0011] Furthermore, one end of the locking rod is connected to the lock body, and the other end of the locking rod is the lock head. Several locking grooves are provided on the end of the locking rod near the lock head. In the locked state, the locking teeth on each layer of locking teeth engage with the locking grooves on the locking rod.

[0012] Furthermore, a positioning and shielding protrusion is provided at the end of the locking rod.

[0013] Furthermore, the lock body, lock rod, lock cylinder cavity, and lock head are integrally injection molded.

[0014] Furthermore, the lock cylinder cavity is located on one side of the lock body, and the other side of the lock body is the marking surface, with a lock rod insertion hole connecting to the lock cylinder cavity.

[0015] Furthermore, a lock cylinder cover plate is provided on the outside of the plastic lock cylinder, and the lock cylinder cover plate has a lock rod protrusion hole in the middle, and the lock cylinder cover plate is embedded in the lock cylinder cavity.

[0016] Compared with the prior art, the present invention has the following advantages: The high-security plastic seal with a spring arm locking tooth structure provided by the present invention solves the problems of security and recycling compatibility through a split lock core structure and a radial elastic system. It adopts an opening and closing spring arm to provide radial locking force, which is convenient to manufacture. The locking force can be easily adjusted by the size of the opening, thereby greatly improving the locking ability and reducing the cost. Attached Figure Description

[0017] Figure 1 This is an exploded view of the plastic seal according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the assembled structure of the plastic seal according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the plastic lock core structure of the plastic seal according to an embodiment of the present invention.

[0018] The diagram is marked as follows: 1. Lock body; 2. Lock cylinder cavity; 3. Lock cylinder cover plate; 4. Lock rod; 5. Lock head; 6. Plastic lock cylinder; 7. Lock rod through hole; 8. Locking groove; 9. Positioning and shielding boss; 61. Opening and closing elastic arm; 611. Support arm; 612. Circular section. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an exploded view of the plastic seal according to the first embodiment of the present invention; Figure 2 This is a schematic diagram of the assembled structure of the plastic seal according to the first embodiment of this utility model.

[0021] Please see Figure 1 and Figure 2 The present invention provides a high-security plastic seal with a lock cylinder featuring a spring arm locking tooth structure, comprising a lock body assembly and a lock cylinder. The lock cylinder is a plastic lock cylinder 6 and is separately disposed from the lock body assembly. The lock body assembly includes a lock body 1 and a lock rod 4. A lock cylinder cavity 2 is provided on the lock body 1 near the lock rod 4. The plastic lock cylinder 6 is disposed in the lock cylinder cavity 2. The plastic lock cylinder 6 is a closed annular body and is bent inward to form an opening and closing spring arm 61. The opening and closing spring arm 61 is radially distributed along the lock rod 4.

[0022] This utility model provides a high-security plastic seal with a lock core featuring a spring-loaded arm and locking teeth structure. The design incorporates an opening and closing spring-loaded arm 61, which utilizes the lever principle to convert minute deformations into powerful locking force. For a preferred embodiment, please refer to [link to preferred embodiment]. Figure 3 This utility model provides a high-security plastic seal with a lock core featuring a spring-loaded arm and locking tooth structure. The plastic lock core 6 has an opening and closing spring-loaded arm 61, which includes a circular segment 612. The circular segment 612 has an opening and forms two supporting arms 611. This utility model uses an opening and closing spring-loaded arm to provide radial locking force, which is easy to manufacture. The locking force can be easily adjusted by the size of the opening. Preferably, the opening angle of the circular segment 612 is 3-30 degrees. The plastic lock core 6 is a circular ring with an opening, forming a concentric circle with the circular segment 612. The opening and closing spring-loaded arm 61 and the plastic lock core 6 are integrally injection molded. The opening angle of the plastic lock core 6 is greater than or equal to the opening angle of the circular segment 612. By using the lever principle, small deformations are converted into strong locking forces, improving mechanical efficiency by 2.1 times.

[0023] As a preferred embodiment, the high-security plastic seal with a spring-loaded arm locking tooth structure provided by this utility model has a locking rod 4, one end of which is connected to the lock body 1, and the other end of which is a lock head 5. Several locking grooves 8 are provided on the locking rod 4 near the lock head 5; a positioning and shielding protrusion 9 is provided at the end of the locking rod 4. In the locked state, the annular segment 612 on the opening and closing spring arm 61 engages with the locking grooves 8 on the locking rod 4. After the locking rod 4 passes through the lock cylinder hole, it then passes through the plastic lock cylinder 6. The plastic lock cylinder 6 retracts inward, thus effectively locking the locking rod 4 and achieving a one-way locking function.

[0024] This utility model provides a high-security plastic seal with a lock cylinder featuring an elastic arm locking tooth structure, which enhances the flexibility and comfort of material selection. Because the lock cylinder is independent and made of plastic, the lock body can be made of softer, more skin-friendly, and environmentally friendly plastic materials, reducing skin contact pressure by 60%. This significantly improves the seal's comfort and environmental performance during use, without compromising its superior security performance.

[0025] This utility model provides a high-security plastic seal with a lock cylinder featuring a spring-loaded arm and locking teeth structure, which greatly enhances locking ability and significantly improves security performance. The use of an opening-closing spring-loaded arm provides radial locking force, is easy to manufacture, and the locking force can be easily adjusted by the opening size. Combined with the protection of the anti-pry lock cylinder cover, the combined effect significantly improves the anti-illegal opening security of this utility model compared to traditional one-piece plastic seals and ordinary plastic lock cylinders, increasing the engagement contact area by 300% and shear strength by 100%.

[0026] This utility model's plastic seal is easy to recycle and has excellent environmental benefits: unlike metal lock cylinder seals, both the lock body and lock cylinder of this utility model are made of plastic. During the recycling process, users or recycling organizations do not need to manually separate the two. This design completely solves the core problems of traditional metal-plastic composite seals, such as difficult separation and low recycling efficiency, increasing recycling efficiency by 80% and significantly improving the overall recycling and reuse rate of plastic components. Preferably, the lock body 1, lock rod 4, lock cylinder cavity 2, and lock head 5 are integrally injection molded, further improving efficiency and reducing assembly work.

[0027] This utility model provides a high-security plastic seal with a spring-loaded locking tooth structure for the lock cylinder. The lock cylinder cavity 2 is located on one side of the lock body 1 and is equipped with a lock head insertion indicator, which clearly indicates the insertion position of the lock head 5, improving the convenience of product use. The other side of the lock body 1 is a marking surface, which can be laser-marked or printed with personalized logos and is equipped with a lock rod insertion hole connecting to the lock cylinder cavity 2. A lock cylinder cover plate 3 is provided on the outside of the plastic lock cylinder 6. The lock cylinder cover plate 3 has a lock rod exit hole 7 in the middle and is embedded in the lock cylinder cavity 2. This completely covers the internal mechanism of the lock cylinder, blocks the insertion path of illegal tools, and significantly improves the ability to prevent illegal unlocking.

[0028] In summary, the high-security plastic seal with a spring arm locking tooth structure provided by this utility model solves the problems of security and recycling compatibility through a split lock core structure and a radial elastic system. It uses an opening and closing spring arm to provide radial locking force, breaking through the traditional axial elastic mode; thus greatly improving the locking ability, and can replace the metal lock core, reducing costs.

[0029] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A high security plastic seal with a lock cylinder having a spring arm lock tooth structure, comprising a lock body assembly and a lock cylinder, characterized in that, The lock cylinder is a plastic lock cylinder (6) and is separately set from the lock body assembly. The lock body assembly includes a lock body (1) and a lock rod (4). The lock body (1) has a lock cylinder cavity (2) near the lock rod (4). The plastic lock cylinder (6) is located in the lock cylinder cavity (2). The plastic lock cylinder (6) is a closed ring and is bent inward to form an opening and closing elastic arm (61). The opening and closing elastic arm (61) is radially distributed along the lock rod (4).

2. The high security plastic seal with elastic arm lock tooth structure lock cylinder as claimed in claim 1, wherein, The opening and closing elastic arm (61) includes a ring segment (612) having an opening and forming two support arms (611).

3. The high-security plastic seal with a spring-loaded arm locking tooth structure as described in claim 2, characterized in that, The opening angle of the annular segment (612) is 3-30 degrees.

4. The high security plastic seal with elastic arm lock tooth structure lock cylinder as claimed in claim 2, wherein, The plastic lock core (6) is a ring with an opening, and forms a concentric circle with the ring segment (612). The opening and closing elastic arm (61) and the plastic lock core (6) are integrally injection molded.

5. The high-security plastic seal with a spring-loaded arm locking tooth structure as described in claim 4, characterized in that, The opening angle of the plastic lock cylinder (6) is greater than or equal to the opening angle of the annular segment (612).

6. The high security plastic seal with elastic arm lock tooth structure lock cylinder as claimed in claim 1, wherein, One end of the locking rod (4) is connected to the lock body (1), and the other end of the locking rod (4) is the lock head (5). Several locking grooves (8) are provided on the end of the locking rod (4) near the lock head (5). In the locked state, the opening and closing elastic arm (61) engages with the locking grooves (8) on the locking rod (4).

7. The high security plastic seal with elastic arm lock tooth structure lock cylinder as claimed in claim 6, wherein, The end of the locking rod (4) is provided with a positioning shielding boss (9).

8. The high security plastic seal with elastic arm lock tooth structure lock cylinder as claimed in claim 6, wherein, The lock body (1), lock rod (4), lock cylinder cavity (2) and lock head (5) are integrally injection molded.

9. The high security plastic seal with elastic arm lock tooth structure lock cylinder as claimed in claim 1, wherein, The lock cylinder cavity (2) is located on one side of the lock body (1), and the other side of the lock body (1) is the marking surface, and a lock rod insertion hole is provided to connect the lock cylinder cavity (2).

10. The high security plastic seal with elastic arm lock tooth structure lock cylinder as claimed in claim 1, wherein, The plastic lock cylinder (6) is provided with a lock cylinder cover plate (3), and the lock cylinder cover plate (3) has a lock rod through hole (7) in the middle. The lock cylinder cover plate (3) is embedded in the lock cylinder cavity (2).

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