A lock tongue structure

Abstract

The utility model relates to a lock technology field, concretely puts forward a lock bolt structure, the utility model discloses a lock bolt structure includes: connecting piece, the first end of connecting piece is set as lockset cooperation end, and the second end of connecting piece is set as connecting end, and the connecting end forms the through -hole, plastic piece, plastic piece installs in the connecting end of connecting piece through injection molding, and injection molding piece forms spacing structure in the through -hole, metal shell, metal shell sets up as open structure, and is inserted with plastic piece through open structure, the inner wall of metal shell forms the clamping slot, and the outside of plastic piece is equipped with the boss matched with clamping slot, and the boss forms the circumferential spacing structure with clamping slot, and the design adopts plastic piece as the key component of connection and spacing, and its material quality has good formability, certain elasticity and excellent anti -corrosion performance, is not easy to oxidize rust, can keep structural stability for a long time, especially suitable for humid and other perishable environment.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically providing a lock tongue structure. Background Technology

[0002] In the field of locks, the lock tongue is a key component, and its structural design has a significant impact on the lifespan, security and cost of the lock. Traditional lock tongues are mostly made of a single metal material, which has high strength but is prone to oxidation and rust, and is also expensive; some are made of a single plastic material, but the strength and wear resistance are difficult to meet the actual use requirements.

[0003] Accordingly, there is a need in the art for a new locking tongue structure to solve the above-mentioned technical problems. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the existing locking tongue structure is too simple and difficult to use for a long time.

[0005] This utility model provides a locking tongue structure, the locking tongue structure comprising: A connector, wherein a first end of the connector is configured as a lock mating end, a second end of the connector is configured as a connecting end, and the connecting end has a through hole; A plastic part is installed at the connecting end of the connector by injection molding, and the plastic part is injected into the through hole to form a limiting structure; A metal shell is provided with an open structure and is inserted into the plastic part through the open structure; a groove is formed on the inner wall of the metal shell, and a protrusion matching the groove is provided on the outer side of the plastic part, and the protrusion and the groove form a circumferential limiting structure.

[0006] Based on the above design, plastic parts are used as key components for connection and limiting. The material possesses good formability, a certain degree of elasticity, and excellent corrosion resistance, making it resistant to oxidation and rust, and able to maintain structural stability over a long period, especially suitable for humid and corrosive environments. Simultaneously, by providing through holes at the connection ends of the connectors, the plastic parts are injected into these holes during injection molding to form a limiting structure. Utilizing the reliable bonding characteristics of plastic and metal, the connection strength and stability between the connectors and the plastic parts are significantly improved, preventing relative displacement. The metal shell and plastic parts form a circumferential limiting structure through grooves and protrusions. The adaptability and corrosion resistance of the plastic protrusions effectively restrict circumferential rotation between the plastic parts and the metal shell, avoiding electrochemical corrosion caused by direct contact between the metal parts. The overall structure has a tight fit and strong corrosion resistance, improving the overall rigidity and service life of the latch structure. Furthermore, the assembly method is simple and reliable, which helps improve production efficiency.

[0007] In the preferred embodiment of the above-mentioned locking tongue structure, the metal shell includes an upper shell and a lower shell, and the upper shell and the lower shell are spliced ​​together.

[0008] Based on the above configuration, the metal shell adopts a splicing structure of upper and lower shells, which is easier to process and manufacture than a one-piece molded structure, and can reduce the production difficulty and cost of complex-shaped metal shells; at the same time, the splicing structure also facilitates the assembly and maintenance of the components inside the shell, improving the convenience of production and maintenance.

[0009] In the preferred embodiment of the above-mentioned locking tongue structure, the connector is configured as an elastic steel structure, and a boss structure is formed at the connection between the connector and the plastic part to restrict the injection position of the plastic part.

[0010] Based on the above design, the connector adopts an elastic steel structure, which has good elasticity and strength, can adapt to the stress changes during the use of the lock, and reduce the risk of breakage; the boss structure can precisely limit the injection position of the plastic part, ensuring the accurate relative position of the plastic part and the connector after injection molding, and improving product consistency and assembly accuracy.

[0011] In the preferred embodiment of the above-mentioned locking tongue structure, the metal shell is formed by stamping cold-rolled steel plate, and the outer wall of the metal shell is provided with axial reinforcing ribs.

[0012] Based on the above design, the metal shell formed by stamping cold-rolled steel sheet has high structural strength and surface quality, providing reliable protection for the latch structure; the axial reinforcing ribs on the outer wall can further enhance the metal shell's resistance to deformation, improve the stability and durability of the latch structure during use, and extend its service life.

[0013] In the preferred embodiment of the above-mentioned locking tongue structure, the connector and the plastic part are injection molded together to form an integral structure.

[0014] Based on the above settings, the connector and the plastic part are injection molded together to form an integral structure, which can eliminate the assembly gap between the two, make the force transmission more uniform, and improve the load-bearing capacity of the overall structure. At the same time, the integral structure can effectively prevent moisture, dust and other impurities from entering the connection, and improve the sealing and corrosion resistance of the latch structure.

[0015] In the preferred embodiment of the above-mentioned locking tongue structure, the plastic part is made of glass fiber engineering plastic, and guide ribs are formed on the plastic part.

[0016] Based on the above design, the plastic parts made of glass fiber-containing engineering plastics have high strength, rigidity and wear resistance, which can meet the strength requirements of the lock tongue structure. The guide ribs on the plastic parts play a guiding role in the assembly process, which facilitates the quick and accurate insertion of the metal shell and the plastic parts, improves the assembly efficiency, and also enhances the structural strength of the plastic parts themselves.

[0017] In the preferred embodiment of the above-mentioned latch structure, the connector has a central hole that mates with the lock.

[0018] Based on the above configuration, the connector has a central hole that mates with the lock, which enables precise matching and connection between the connector and other parts of the lock, ensuring the installation accuracy and movement coordination of the bolt structure in the lock, and ensuring the normal functioning of the lock.

[0019] In the preferred embodiment of the above-mentioned latch structure, the protrusion is configured as an elastic protrusion.

[0020] Based on the above settings, the bump is set as an elastic bump. When the metal shell and the plastic part are inserted, the elastic bump can undergo elastic deformation, which facilitates smooth insertion. After insertion, the elastic bump returns to its original shape and fits tightly with the slot, which not only ensures the circumferential limiting effect, but also adapts to certain dimensional errors, improves the flexibility and reliability of assembly, and reduces wear during the assembly process. Attached Figure Description

[0021] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1 A schematic diagram of the overall structure of this utility model is shown; Figure 2 A schematic diagram of the connector structure of this utility model is shown; Figure 3 A schematic diagram of the plastic part structure of this utility model is shown.

[0022] Figure label: 1. Upper shell; 2. Lower shell; 3. Connector; 4. Plastic part; 5. Protrusion; 6. Center hole; 7. Guide rib; 8. Through hole. Detailed Implementation

[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0024] It should be noted that in the description of this utility model, the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the structure must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] First refer to Figures 1 to 3 ,like Figures 1 to 3 As shown, a locking tongue structure includes: The connector 3 has a first end configured as a lock mating end and a second end configured as a connecting end, with a through hole 8 formed therein. It should be noted that this utility model does not impose any restrictions on the specific structure of the connector 3. Those skilled in the art can set it according to their needs, as long as the connector 3 can be used in conjunction with the lock.

[0027] Plastic part 4 is injection molded onto the connecting end of connector 3, forming a limiting structure within the through hole 8. It should be noted that this invention does not impose any restrictions on the specific structure of plastic part 4; those skilled in the art can design it according to their needs. For example, plastic part 4 can be an engineering plastic structure, or it can be a glass fiber nylon structure, as long as it has good strength and stability. In this preferred embodiment, in the preferred technical solution of the above-mentioned latch structure, plastic part 4 is made of glass fiber engineering plastic, and guide ribs 7 are formed on plastic part 4. Plastic part 4, made of glass fiber engineering plastic, has high strength, rigidity, and wear resistance, meeting the strength requirements of the latch structure. The guide ribs 7 on plastic part 4 play a guiding role during assembly, facilitating quick and accurate insertion of the metal shell and plastic part 4, improving assembly efficiency, and also enhancing the structural strength of plastic part 4 itself.

[0028] The metal shell has an open structure and is inserted into the plastic part 4 through the open structure. A groove is formed on the inner wall of the metal shell, and a protrusion 5 matching the groove is provided on the outer side of the plastic part 4. The protrusion 5 and the groove form a circumferential limiting structure. It should be noted that this utility model does not impose any restrictions on the specific structure of the metal shell. Those skilled in the art can set it according to their needs. For example, the metal shell can be a split structure, or it can be a one-piece structure, as long as the metal shell can adapt to the operation of the locking tongue. In this preferred embodiment, the metal shell includes an upper shell 1 and a lower shell 2, which are spliced ​​together. Compared with a one-piece molded structure, the spliced ​​structure of the upper shell 1 and lower shell 2 is easier to process and manufacture, reducing the production difficulty and cost of complex-shaped metal shells. At the same time, the spliced ​​structure also facilitates the assembly and maintenance of the components inside the shell, improving the convenience of production and maintenance.

[0029] Furthermore, the metal shell is formed by stamping cold-rolled steel sheet, and the outer wall of the metal shell is provided with axial reinforcing ribs. The metal shell formed by stamping cold-rolled steel sheet has high structural strength and surface quality, which can provide reliable protection for the latch structure; the axial reinforcing ribs on the outer wall can further enhance the deformation resistance of the metal shell, improve the stability and durability of the latch structure during use, and extend its service life.

[0030] This application uses plastic part 4 as the key component for connection and limiting. Its material has good formability, a certain degree of elasticity, and excellent rust resistance. It is not easy to oxidize and rust, and can maintain structural stability for a long time. It is especially suitable for humid and corrosive environments. At the same time, by setting a through hole 8 at the connection end of the connector 3, the plastic part 4 is injected into the through hole 8 during injection molding to form a limiting structure. Utilizing the reliable bonding characteristics of plastic and metal, the connection strength and stability between the connector 3 and the plastic part 4 are significantly improved, preventing relative displacement between the two. The metal shell and the plastic part 4 form a circumferential limiting structure through the slot and the protrusion 5. With the help of the adaptability and corrosion resistance of the plastic protrusion 5, the circumferential rotation between the plastic part 4 and the metal shell can be effectively restricted, avoiding electrochemical corrosion caused by direct contact between the metal parts. The overall structure fits tightly and has strong rust resistance, which improves the overall rigidity and service life of the locking tongue structure. At the same time, the assembly method is simple and reliable, which is conducive to improving production efficiency.

[0031] In a preferred embodiment, the connector 3 is configured as a flexible steel structure, and a boss structure is formed at the connection between the connector 3 and the plastic part 4 to restrict the injection position of the plastic part 4. The connector 3, made of flexible steel, possesses good elasticity and strength, adapting to stress changes during lock use and reducing the risk of breakage. The boss structure precisely restricts the injection position of the plastic part 4, ensuring accurate relative positioning between the plastic part 4 and the connector 3 after injection molding, improving product consistency and assembly precision. It should be noted that this invention does not impose any limitations on the specific type of connector 3. Those skilled in the art can set it according to their needs. For example, the connector 3 can be made of stainless steel, or it can be made of composite material, as long as the service life and stability of the connector 3 are sufficient.

[0032] Furthermore, the connector 3 and the plastic part 4 are injection molded together to form an integral structure. This integral structure eliminates assembly gaps between the two, resulting in more even force transmission and improved overall structural load-bearing capacity. Simultaneously, the integral structure effectively prevents moisture, dust, and other impurities from entering the connection point, improving the sealing and corrosion resistance of the latch structure. Of course, this invention does not impose any limitations on the specific connection relationship between the connector 3 and the plastic part 4. Those skilled in the art can set it according to their needs. For example, the connector 3 and the plastic part 4 can be snapped together by the detachable connector 3; alternatively, they can be directly installed by plugging them in, as long as the connection between the connector 3 and the plastic part 4 is stable.

[0033] Furthermore, the connector 3 has a central hole 6 that mates with the lock. This central hole 6 allows for precise fitting and connection between the connector 3 and other components of the lock, ensuring the installation accuracy and movement coordination of the latch structure within the lock, and guaranteeing the normal functionality of the lock. Of course, this invention does not impose any limitations on the specific structure of the central hole 6; those skilled in the art can design it according to their needs, as long as the central hole 6 can be used in conjunction with the lock.

[0034] Furthermore, the protrusion 5 is configured as an elastic protrusion 5. When the metal shell and the plastic part 4 are inserted, the elastic protrusion 5 can undergo elastic deformation, which facilitates smooth insertion. After insertion, the elastic protrusion 5 returns to its original shape and fits tightly with the slot, which not only ensures the circumferential limiting effect, but also adapts to certain dimensional errors, improves the flexibility and reliability of assembly, and reduces wear during the assembly process.

[0035] The technical solution of this utility model has been described in conjunction with the optional embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A locking tongue structure, characterized in that, The locking tongue structure includes: A connector, wherein a first end of the connector is configured as a lock mating end, a second end of the connector is configured as a connecting end, and the connecting end has a through hole; A plastic part is installed at the connecting end of the connector by injection molding, and the plastic part is injected into the through hole to form a limiting structure; A metal shell is provided with an open structure and is inserted into the plastic part through the open structure; a groove is formed on the inner wall of the metal shell, and a protrusion matching the groove is provided on the outer side of the plastic part, and the protrusion and the groove form a circumferential limiting structure.

2. The locking tongue structure according to claim 1, characterized in that, The metal shell includes an upper shell and a lower shell, and the upper shell and the lower shell are spliced ​​together.

3. The locking tongue structure according to claim 1, characterized in that, The connector is configured as an elastic steel structure, and a boss structure is formed at the connection between the connector and the plastic part to restrict the injection position of the plastic part.

4. A locking tongue structure according to claim 1, characterized in that, The metal shell is formed by stamping cold-rolled steel sheet, and the outer wall of the metal shell is provided with axial reinforcing ribs.

5. A locking tongue structure according to claim 1, characterized in that, The connector and the plastic part are injection molded together to form an integral structure.

6. A locking tongue structure according to claim 1, characterized in that, The plastic part is made of glass fiber engineering plastic, and guide ribs are formed on the plastic part.

7. A locking tongue structure according to claim 1, characterized in that, The connector has a central hole that mates with the lock.

8. A locking tongue structure according to claim 1, characterized in that, The bump is configured as an elastic bump.

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