Spring bolt structure and door lock comprising same
By setting reinforcement and guide grooves in the main body of the lock tongue, the problem of high cost and high noise of the metal lock tongue is solved, and a low-cost, low-noise, lightweight and durable lock tongue structure is achieved, which improves the safety and service life of the door lock.
Patent Information
- Application Number
- CN202422406948.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The lock tongues of existing door locks are usually made of metal, which are costly and noisy, while the plastic lock tongue is low in strength and prone to deformation or damage.
A locking tongue body is made of plastic and reinforcements are provided within its head, such as reinforcements made of metal, combined with guide grooves and protective sleeves to improve structural strength and durability.
Reduces production costs and noise, enhances durability and safety of the lock tongue, reduces weight, provides a quiet and comfortable environment, and extends service life.
Smart Images
Figure CN223202873U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door and window hardware accessories, in particular to a lock tongue structure and a door lock comprising the same. Background Art
[0002] In the prior art, a door lock usually includes a lock housing, a lock tongue and a drive assembly. The lock housing is fixed to the door leaf, and the lock tongue and the drive assembly are both arranged in the lock housing. The lock tongue and the drive assembly are transmission-connected. Driven by the drive assembly, the lock tongue can be extended and retracted relative to the lock housing. When the lock tongue is extended, the lock tongue can be snapped into a lock slot of a lock box (fixed on the frame of the door opening) to lock the door. However, the existing lock tongue is usually made of metal, which has the problem of high production cost, and the noise generated when the lock tongue and the lock slot collide is also relatively large. Of course, making the lock tongue of plastic material can solve the above problems to a certain extent. However, this will bring new problems. The strength of the plastic lock tongue is reduced, and the lock tongue is easily deformed or damaged due to collision with the lock slot. Utility Model Content
[0003] In order to overcome at least one of the defects of the prior art described above, the present invention provides a lock tongue structure and a door lock including the same, wherein the lock tongue structure has the advantages of low production cost, low noise in use and not easy to deform.
[0004] The technical solution adopted by the present invention to solve the problem is:
[0005] The lock tongue structure comprises: a lock tongue body made of plastic, the lock tongue body having a head with a mounting groove arranged therein; a reinforcement member arranged in the mounting groove, the reinforcement member moving synchronously with the head.
[0006] According to some embodiments of the present invention, the head performs linear reciprocating movement along a first direction, and the reinforcement extends along the first direction.
[0007] According to some embodiments of the present invention, the lock tongue body also includes a sliding frame, which is used to be slidably set on the lock shell, and the sliding frame performs linear reciprocating sliding along the first direction. The head and the sliding frame are integrally formed, and the head moves synchronously with the sliding frame.
[0008] According to some embodiments of the present invention, the sliding frame is provided with a guide groove, the guide groove extends along the first direction, and the guide groove is used for sliding connection with a guide column of the lock housing.
[0009] According to some embodiments of the present invention, a reinforcement portion is provided in the mounting groove extending toward the sliding frame, the reinforcement portion is located at the junction of the head and the sliding frame, and one end of the reinforcement member is inserted into the reinforcement portion.
[0010] According to some embodiments of the present invention, the locking tongue structure further includes a protective sleeve, and the protective sleeve is sleeved on the head.
[0011] According to some embodiments of the present invention, one of the protective cover and the head is provided with a card slot, and the other is provided with a card block, and the card block is engaged in the card slot.
[0012] According to some embodiments of the present invention, the lock tongue structure further includes a magnet, the head is provided with a fixing groove, and the magnet is disposed in the fixing groove.
[0013] According to some embodiments of the present invention, there are at least two mounting grooves, at least two of which are spaced apart and distributed on the head, the number of the reinforcements is equal to the number of the mounting grooves, and the reinforcements are arranged in a one-to-one correspondence with the mounting grooves.
[0014] In addition, the present invention also provides a door lock, including the lock tongue structure as described above, and also including a lock shell and a drive assembly. The lock tongue body and the drive assembly are both arranged in the lock shell, and the lock tongue body and the drive assembly are transmission-connected. Driven by the drive assembly, the lock tongue body can slide relative to the lock shell to drive the head to extend and retract.
[0015] In summary, the lock tongue structure and the door lock including the same provided by the present invention have at least the following technical effects:
[0016] The lock tongue body is made of plastic material. Compared with traditional metal lock tongues, it is easy to process and has lower production cost. The collision sound generated when it contacts other parts (such as lock slots) is smaller, thereby effectively reducing the noise of the door lock during use, thereby providing users with a quieter and more comfortable living environment. In addition, the weight of the lock tongue body is reduced, which reduces the overall weight of the door lock and reduces the burden on the door lock during installation and use, thereby improving the convenience and comfort of use; more importantly, by arranging a reinforcement inside the head of the lock tongue body, the lock tongue body can be prevented from being deformed or damaged due to long-term use or external force impact, thereby enhancing the overall strength and durability of the lock tongue structure, ensuring the overall safety of the door lock, and extending the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic structural diagram of a door lock according to an embodiment of the present utility model;
[0018] Figure 2 This is a schematic diagram of the exploded structure of a door lock according to an embodiment of the present invention;
[0019] Figure 3 This is a schematic diagram of the internal structure of a door lock according to an embodiment of the present utility model;
[0020] Figure 4 This is a schematic diagram of the exploded structure of the lock tongue structure of an embodiment of the present utility model.
[0021] The meanings of the reference numerals are as follows:
[0022] 1. Lock tongue body; 11. Head; 111. Mounting slot; 112. Block; 113. Fixing slot; 12. Sliding frame; 121. Guide slot; 13. Reinforcement; 2. Reinforcement member; 3. Protective cover; 31. Block; 4. Magnet; 5. Lock housing; 51. Guide column; 6. Drive assembly. DETAILED DESCRIPTION
[0023] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0026] The present invention will be further described in detail below with reference to the accompanying drawings.
[0027] See also Figures 1 to 4 This embodiment discloses a lock tongue structure, which includes a lock tongue body 1 and a reinforcement 2; the lock tongue body 1 is made of plastic, and the lock tongue body 1 has a head 11, and a mounting groove 111 is provided in the head 11; the reinforcement 2 is provided in the mounting groove 111, and the reinforcement 2 moves synchronously with the head 11.
[0028] In addition, this embodiment also discloses a door lock, including the above-mentioned lock tongue structure, and also including a lock shell 5 and a drive assembly 6. The lock tongue body 1 and the drive assembly 6 are both arranged in the lock shell 5. The lock tongue body 1 and the drive assembly 6 are transmission connected. Driven by the drive assembly 6, the lock tongue body 1 can slide relative to the lock shell 5 to drive the head 11 to extend and retract, so that the head 11 and the lock slot of the lock box (not shown in the figure, the lock box is used to be fixed on the frame of the door opening) are engaged or separated.
[0029] The present embodiment provides a lock tongue mechanism, in which the lock tongue body 1 is made of plastic material. Compared with traditional metal lock tongues, it is easy to process and has a lower production cost. The collision sound generated when it contacts other components (such as the lock slot of the lock box) is smaller, thereby effectively reducing the noise of the door lock during use, providing users with a quieter and more comfortable living environment. In addition, the weight of the lock tongue body 1 is reduced, reducing the overall weight of the door lock, and also reducing the burden on the door lock during installation and use, thereby improving the convenience and comfort of use; more importantly, by arranging a reinforcement 2 in the head 11 of the lock tongue body 1, the lock tongue body 1 can be prevented from being deformed or damaged due to long-term use or external force impact, thereby enhancing the overall strength and durability of the lock tongue structure, ensuring the overall safety of the door lock, and extending the service life of the product.
[0030] Preferably, in this embodiment, the reinforcement 2 is made of metal to achieve the purpose of enhancing the structural strength; the reinforcement 2 made of metal provides a solid support for the lock tongue body 1 made of plastic, significantly enhancing the overall structural strength of the lock tongue structure, and even in the face of a large external force impact, the lock tongue structure can remain stable and is not prone to deformation or breakage, thereby improving the safety and reliability of the door lock; and it can be understood that although the reinforcement 2 is made of metal, due to its relatively small size and embedded in the lock tongue body 1, it does not significantly increase the overall weight of the door lock, which allows the door lock to have stronger structural strength and durability while maintaining its lightweight advantage.
[0031] Therefore, the combination of the reinforcement 2 made of metal and the lock tongue body 1 made of plastic not only ensures the safety and durability of the lock tongue structure, but also reduces cost, noise and weight by using plastic material.
[0032] It should be noted that in some other embodiments, the reinforcement 2 can be made of, but not limited to, nylon (PA) or polycarbonate (PC) or polyoxymethylene (P0M) or fiber reinforced composite material (FRP), etc., and can be selected according to actual needs. No sole limitation is made here.
[0033] like Figure 2 、 Figure 3 and Figure 4As shown, preferably, in this embodiment, the head 11 moves back and forth in a straight line along the first direction, and the reinforcement 2 extends along the first direction. The first direction can be specifically referred to Figure 3 In the e1 direction, the reinforcement 2 extends along the moving direction of the head 11, which can directly provide additional support for the head 11 and reduce structural deformation or damage caused by vibration and impact generated during the movement; and when the head 11 moves along the first direction, the reinforcement 2 can more effectively transfer and disperse the load, so that the load is more evenly distributed in the structure, reducing the phenomenon of local stress concentration, thereby improving the bearing capacity and durability of the structure.
[0034] Preferably, in this embodiment, there are two mounting grooves 111, and the two mounting grooves 111 are spaced apart and distributed on the head 11. The number of reinforcement members 2 is correspondingly equal to the number of mounting grooves 111, and the two reinforcement members 2 are arranged in a one-to-one correspondence in the two mounting grooves 111; in this way, the two mounting grooves 111 should be designed at appropriate positions of the head 11 to ensure that the reinforcement members 2 can fully exert their reinforcing effect. By respectively installing the reinforcement members 2 in the two mounting grooves 111, the stress and impact force on the head 11 can be effectively dispersed, which helps to achieve force balance. When the lock tongue moves or is subjected to external force, the two reinforcement members 2 can work together to jointly bear and disperse the force, thereby ensuring the stability and safety of the head 11, thereby reducing the risk of deformation or damage to the head 11.
[0035] It should be noted that in some other embodiments, the number of installation slots 111 can be but is not limited to 1, 3, or 4, etc., and the number of reinforcement members 2 can be correspondingly equal to the number of installation slots 111, and no sole limitation is made here.
[0036] like Figure 2 and Figure 3 As shown, specifically, in this embodiment, the lock bolt body 1 further includes a sliding frame 12, which is slidably mounted on the lock housing 5. The sliding frame 12 performs linear reciprocating sliding along a first direction. Preferably, the head 11 and the sliding frame 12 are integrally formed, and the head 11 moves synchronously with the sliding frame 12. The sliding frame 12 is slidably mounted within the lock housing 5, and the sliding frame 12 provides a stable sliding platform, enabling the lock bolt body 1 to perform precise linear reciprocating sliding relative to the lock housing 5. Furthermore, since the head 11 and the sliding frame 12 are integrally formed, the integrated design reduces the number of parts and assembly steps, thereby simplifying the overall structure of the lock bolt body 1. This not only reduces manufacturing costs but also improves assembly efficiency and overall structural strength. Furthermore, since the head 11 and the sliding frame 12 are integrally formed, there is no relative motion between them. Therefore, when the sliding frame 12 performs linear reciprocating sliding along the first direction, the head 11 closely follows the sliding frame 12 in synchronous movement, thereby ensuring the accuracy and consistency of the movement of the head 11.
[0037] like Figure 2 、 Figure 3 and Figure 4 As shown, preferably, in this embodiment, the sliding frame 12 is provided with a guide groove 121, and the lock housing 5 is provided with a guide column 51. The guide groove 121 extends along a first direction, and the guide groove 121 is slidably connected to the guide column 51 to provide guidance for the sliding of the sliding frame 12 relative to the lock housing 5; in this way, the sliding connection between the guide groove 121 and the guide column 51 can provide a stable guiding effect, thereby preventing the sliding frame 12 from deviating from the predetermined path, and can also withstand the lateral force generated during the sliding process to a certain extent, thereby increasing the stability and durability of the structure.
[0038] It should be noted that, in some other embodiments, the guide groove 121 may also be provided on the lock housing 5 , and the guide column 51 may be correspondingly provided on the sliding frame 12 , and the selection may be made according to actual needs.
[0039] like Figure 2 、 Figure 3 and Figure 4 As shown, preferably, in this embodiment, the mounting groove 111 is provided with a reinforcement portion 13 extending toward the sliding frame 12. The reinforcement portion 13 is located at the intersection of the head 11 and the sliding frame 12, and one end of the reinforcement member 2 is inserted into the reinforcement portion 13. In this way, on the one hand, the reinforcement member 2 extends into the sliding frame 12 to further improve the overall structural strength of the lock tongue body 1. On the other hand, the reinforcement portion 13, as an additional supporting structure, can increase the material thickness at the intersection of the head 11 and the sliding frame 12, thereby improving the bearing capacity of this area, thereby making the lock tongue body 1 less likely to deform or break when subjected to external force or long-term use. More preferably, in this embodiment, the head 11, the sliding frame 12, and the reinforcement portion 13 are integrally formed, and the material of the reinforcement portion 13 should match the material of the head 11 and the sliding frame 12 to ensure the coordination and consistency of the overall structure.
[0040] like Figure 2 、 Figure 3 and Figure 4 As shown, preferably, in this embodiment, the lock tongue structure further includes a protective cover 3, which is sleeved on the head 11. Such a configuration has the following advantages:
[0041] First, the head 11, as a key part of the lock tongue body 1, may generate friction with the lock housing 5 or other components during the sliding process, which can easily lead to wear after long-term use. The protective cover 3 can reduce the direct contact between the head 11 and these components, thereby reducing the wear rate and extending the service life of the lock tongue;
[0042] Secondly, in some special environments, such as humid, dusty or corrosive environments, the head 11 is susceptible to corrosion and damage. The protective cover 3 is usually made of corrosion-resistant materials, which can effectively isolate the erosion of the external environment and protect the head 11 from corrosion.
[0043] Thirdly, when the lock tongue is closed or opened, the head 11 may be subjected to a certain impact force. The protective cover 3 has a certain elasticity and cushioning performance, which can absorb and disperse the impact force, reduce the damage to the head 11, and reduce noise and vibration.
[0044] Fourthly, the protective cover 3 can also be designed as needed to match the appearance style of the lock or door body. By selecting the appropriate material, color and texture, the protective cover 3 can enhance the overall aesthetics of the lock tongue and make it more coordinated with the surrounding environment.
[0045] Fifth, in certain situations, such as when the lock tongue needs to be quickly opened in an emergency, the user may come into direct contact with the head 11. Sharp edges or protrusions on the head 11 could cause injury. The design of the protective cover 3 ensures that the surface of the head 11 is flat and smooth, reducing the risk of injury.
[0046] More preferably, in this embodiment, the protective cover 3 is provided with a slot 31, and the head 11 is provided with a block 112, which is engaged with the slot 31. In this way, on the one hand, the engagement between the slot 31 and the block 112 can provide a reliable connection force, ensuring that the protective cover 3 will not easily fall off during use of the lock tongue structure. This stable connection helps the protective cover 3 better perform its protective and safety functions. On the other hand, through the cooperation between the slot 31 and the block 112, the protective cover 3 can be easily installed on the head 11 without the use of additional tools or complicated operating steps. This convenient installation method improves production efficiency and reduces installation costs. Moreover, when the protective cover 3 needs to be cleaned or a damaged protective cover 3 needs to be replaced, it can be disassembled by simply pulling the block 112 out of the slot 31, thereby making maintenance work simpler and faster.
[0047] It should be noted that, in some other embodiments, the card slot 31 may be provided on the head 11 , and the card block 112 may be correspondingly provided on the protective cover 3 .
[0048] like Figure 2 and Figure 4As shown, preferably, in this embodiment, the lock tongue structure further includes a magnet 4, and the head 11 is provided with a fixing groove 113, and the magnet 4 is arranged in the fixing groove 113. The magnetic force generated by the magnet 4 is used to generate magnetic adsorption between the head 11 of the lock tongue body 1 and the lock groove of the lock box; in this way, when the head 11 of the lock tongue body 1 moves to the lock groove position of the lock box, the magnet 4 will generate magnetic adsorption with the corresponding magnetic material in the lock groove. This magnetic adsorption can ensure that the head 11 remains firmly in the lock groove in the locked state to prevent accidental opening or loosening.
[0049] In summary, the lock tongue structure and the door lock including the same disclosed in the present invention can at least bring the following beneficial technical effects:
[0050] 1) The lock tongue structure adopts a plastic material combined with a reinforcement 2, which not only reduces production costs and noise, but also improves the durability and design flexibility of the lock tongue;
[0051] 2) The combination of the metal reinforcement 2 and the plastic bolt body 1 not only ensures the safety and durability of the bolt structure, but also reduces cost, noise and weight by using plastic materials;
[0052] 3) The head 11 and the sliding frame 12 are integrally formed. The integrated design reduces the number of parts and assembly steps, thereby simplifying the overall structure of the bolt body 1. This not only reduces manufacturing costs but also improves assembly efficiency and overall structural strength.
[0053] 4) The sliding connection between the guide groove 121 and the guide post 51 can provide a stable guiding effect, thereby preventing the sliding frame 12 from deviating from the predetermined path, and can also withstand the lateral force generated during the sliding process to a certain extent, thereby increasing the stability and durability of the structure.
[0054] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.
Claims
1. The lock tongue structure is characterized by: include: A lock tongue body (1) is made of plastic, the lock tongue body (1) having a head (11), and a mounting groove (111) is provided in the head (11); A reinforcing member (2) is arranged in the installation groove (111), and the reinforcing member (2) moves synchronously with the head (11).
2. The lock tongue structure according to claim 1, characterized in that: The head (11) moves linearly back and forth along a first direction, and the reinforcement (2) extends along the first direction.
3. The lock tongue structure according to claim 1, characterized in that: The lock tongue body (1) further comprises a sliding frame (12), the sliding frame (12) being used for being slidably arranged in the lock housing (5), the sliding frame (12) performing linear reciprocating sliding along a first direction, the head (11) and the sliding frame (12) being integrally formed, and the head (11) moving synchronously with the sliding frame (12).
4. The lock tongue structure according to claim 3, characterized in that: The sliding frame (12) is provided with a guide groove (121), the guide groove (121) extends along the first direction, and the guide groove (121) is used for sliding connection with the guide column (51) of the lock housing (5).
5. The lock tongue structure according to claim 3, characterized in that: The mounting groove (111) is provided with a reinforcement portion (13) extending toward the sliding frame (12). The reinforcement portion (13) is located at the junction of the head portion (11) and the sliding frame (12), and one end of the reinforcement member (2) is inserted into the reinforcement portion (13).
6. The lock tongue structure according to claim 1, characterized in that: The locking tongue structure further comprises a protective sleeve (3), and the protective sleeve (3) is sleeved on the head (11).
7. The lock tongue structure according to claim 6, characterized in that: One of the protective cover (3) and the head (11) is provided with a card slot (31), and the other is provided with a card block (112), and the card block (112) is engaged in the card slot (31).
8. The lock tongue structure according to claim 1, characterized in that: The locking tongue structure further comprises a magnet (4); the head (11) is provided with a fixing groove (113); and the magnet (4) is arranged in the fixing groove (113).
9. The lock tongue structure according to any one of claims 1 to 8, characterized in that: At least two mounting grooves (111) are provided, and at least two mounting grooves (111) are spaced apart and distributed on the head (11). The number of the reinforcement members (2) and the mounting grooves (111) is equal, and the reinforcement members (2) are provided in a one-to-one correspondence with the mounting grooves (111).
10. Door lock, characterized in that, The invention comprises a lock tongue structure as described in any one of claims 1 to 9, and further comprises a lock shell (5) and a drive assembly (6), wherein the lock tongue body (1) and the drive assembly (6) are both arranged in the lock shell (5), and the lock tongue body (1) and the drive assembly (6) are transmission-connected, and driven by the drive assembly (6), the lock tongue body (1) can slide relative to the lock shell (5) to drive the head (11) to extend and retract.