Office table cabinet lock

Abstract

The utility model belongs to the technical field of electromagnetic locks, and particularly relates to an office table cabinet lock which comprises a mounting frame provided with a containing cavity. The coil assembly is arranged in the accommodating cavity; wherein an installation cavity is formed in the coil assembly, a static iron core is arranged in the installation cavity, and the adsorption part of the static iron core does not exceed the end face of the installation cavity; one end of the metal plate is hinged to the mounting frame, and the other end of the metal plate movably abuts against the static iron core; wherein a boss matched with the mounting cavity in shape is arranged on the metal plate, and when the office table cabinet lock is powered on, the boss extends into the mounting cavity and is tightly attracted to the attraction part of the static iron core; due to the fact that the boss is matched with the mounting cavity in shape and height, the metal plate can keep extremely high stability in the adsorption process, the trouble of frequently adjusting the position of the metal plate is avoided, in this way, using convenience of the office table cabinet lock is improved, and the overall reliability and durability of the office table cabinet lock are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic lock technology, and in particular relates to an office desk and cabinet lock. Background Technology

[0002] An electromagnet is a device that uses electric current to generate a magnetic field, typically consisting of a coil and an iron core. When current flows through a conductor, a magnetic field is generated around the conductor. Utilizing this property, when current flows through a coil, a uniform magnetic field is created inside the coil. If a ferromagnetic material is placed at the center of the coil, this ferromagnetic material will be magnetized, and the magnetic field will be greatly enhanced.

[0003] Electromagnets are widely used in numerous fields, including industrial automation for controlling robotic arms and switches; scientific research equipment for guiding particle beams and in MRI; transportation for maglev trains and electromagnetic railguns; medical equipment for pacemakers and magnetotherapy; household appliances such as induction cookers and speakers; electronic devices such as hard disk drives and electromagnetic relays; environmental engineering for waste and water treatment; military and security for electromagnetic weapons and metal detectors; and education and exhibitions for science education and interactive displays. Furthermore, electromagnets are used in lifting, electric drives, and machine tool clamps. With technological advancements, the application areas of electromagnets continue to expand.

[0004] Electromagnetic cabinet locks, used in office desks, are based on the fundamental principle of electromagnetic induction. When an electric current flows through the silicon steel sheet inside the lock, a strong magnetic force is generated. This force is strong enough to firmly attract the metal plate, thus locking the cabinet door. While electromagnetic locks offer advantages such as convenience and quick locking in office desk and cabinet applications, they also present technical challenges, such as the metal plate not adhering firmly and the need for frequent adjustments to the plate's position.

[0005] To address these issues, it is essential to continuously optimize the design and manufacturing processes of electromagnetic locks, enhance their environmental adaptability and seismic resistance, and simplify fault diagnosis and maintenance procedures. Utility Model Content

[0006] The purpose of this utility model is to provide an office desk lock that solves the technical problems of the existing technology, such as the iron plate not being firmly attached and the need to frequently adjust the position of the iron plate.

[0007] To achieve the above objectives, this utility model provides a desk cabinet lock, comprising:

[0008] Mounting frame, wherein the mounting frame has a receiving cavity;

[0009] A coil assembly is disposed within the receiving cavity; wherein, the coil assembly has an internal mounting cavity, a stationary iron core is disposed within the mounting cavity, and the adsorption portion of the stationary iron core does not extend beyond the end face of the mounting cavity;

[0010] A metal plate, one end of which is hinged to the mounting bracket, and the other end of which is movably abutted against the stationary iron core; wherein, the metal plate is provided with a protrusion that matches the shape of the mounting cavity, and when the office desk lock is powered on, the protrusion extends into the mounting cavity and is attracted to the adsorption part of the stationary iron core.

[0011] Optionally, the mounting cavity, the stationary iron core, and the boss are all circular in shape.

[0012] Optionally, the mounting bracket is further provided with a mounting groove, the inner wall of the mounting groove extends out to form a limiting block, and a positioning groove is provided at one end of the metal plate that is hinged to the mounting bracket, the positioning groove and the limiting block being inserted into each other.

[0013] Optionally, clamping arms extend from both sides of the mounting groove, and the two clamping arms are arranged around the metal plate.

[0014] Optionally, the bottom of the receiving cavity is provided with a through hole for installing the stationary iron core.

[0015] Optionally, the bottom of the receiving cavity is further provided with an annular groove, which is disposed on the outer periphery of the through hole, and a washer for buffering the stationary iron core is disposed in the annular groove.

[0016] Optionally, the bottom of the receiving cavity is further provided with a limiting hole for limiting the coil assembly, and the limiting hole is disposed on the outer periphery of the annular groove.

[0017] Optionally, the bottom of the receiving cavity is further provided with a mounting hole for mounting the mounting bracket, the mounting hole being positioned away from the coil assembly.

[0018] Optionally, the inner wall of the mounting hole is provided with threads for mounting the mounting bracket.

[0019] Optionally, a torsion spring is provided at the portion of the metal plate that is hinged to the mounting bracket.

[0020] The above-mentioned technical solutions of one or more of the office desk and cabinet locks provided in this embodiment of the utility model have at least one of the following technical effects:

[0021] This utility model of an office desk lock cleverly incorporates a stationary iron core within the coil assembly, ensuring it does not protrude beyond the end face of the mounting cavity. Simultaneously, a meticulously designed boss structure on the metal plate perfectly matches the shape of the mounting cavity. When the lock is powered on, these bosses smoothly extend into the mounting cavity and tightly engage with the adsorption portion of the stationary iron core. This design significantly enhances the adsorption force between the metal plate and the stationary iron core, effectively solving the problem of weak metal plate adsorption commonly found in existing technologies. Furthermore, the high degree of shape matching between the bosses and the mounting cavity ensures the metal plate maintains extremely high stability during adsorption, avoiding the inconvenience of frequent adjustments to the metal plate's position. This not only improves the ease of use of the office desk lock but also greatly enhances its overall reliability and durability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of the office desk lock provided in an embodiment of the present utility model.

[0024] Figure 2 A cross-sectional view of the office desk lock provided in an embodiment of this utility model.

[0025] Figure 3 This is a structural diagram of the office desk lock provided in another direction according to an embodiment of the present utility model.

[0026] The following are the labeling elements in the figure:

[0027] 10. Mounting bracket; 11. Receiving cavity; 12. Mounting slot;

[0028] 13. Limiting hole; 14. Mounting hole; 20. Coil assembly;

[0029] 30. Static iron core; 40. Metal plate; 121. Limiting block;

[0030] 122. Clamping arm; 401. Positioning groove. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0035] In one embodiment of this utility model, such as Figures 1-3 As shown, a desk cabinet lock is provided, comprising:

[0036] Mounting bracket 10, wherein the mounting bracket 10 has a receiving cavity 11;

[0037] A coil assembly 20 is disposed within the receiving cavity 11; wherein, the coil assembly 20 has an internal mounting cavity, and a stationary iron core 30 is disposed within the mounting cavity, and the adsorption portion of the stationary iron core 30 does not extend beyond the end face of the mounting cavity;

[0038] A metal plate 40 is provided, one end of which is hinged to the mounting bracket 10, and the other end of which is movably abutted against the stationary iron core 30; wherein, the metal plate 40 is provided with a protrusion that matches the shape of the mounting cavity, and when the office desk lock is powered on, the protrusion extends into the mounting cavity and is attracted to the adsorption part of the stationary iron core 30.

[0039] Specifically, the office desk lock of this invention cleverly incorporates a stationary iron core 30 inside the coil assembly 20, ensuring it does not protrude beyond the end face of the mounting cavity. Simultaneously, a boss structure meticulously designed on the metal plate 40 perfectly matches the shape of the mounting cavity. When the office desk lock is powered on, these bosses smoothly extend into the mounting cavity and tightly attract with the adsorption portion of the stationary iron core 30. This design significantly enhances the adsorption force between the metal plate 40 and the stationary iron core 30, effectively solving the problem of weak adsorption of the metal plate 40 commonly found in existing technologies. Furthermore, due to the high degree of matching between the bosses and the mounting cavity shape, the metal plate 40 maintains extremely high stability during adsorption, thus avoiding the hassle of frequently adjusting the position of the metal plate 40. This not only improves the ease of use of the office desk lock but also greatly enhances its overall reliability and durability.

[0040] In another embodiment of this utility model, such as Figures 1-3 As shown, the mounting cavity, the stationary iron core 30, and the boss are all circular in shape. Specifically, this circular design ensures that the stress on each component is evenly distributed, thereby reducing stress concentration and improving the stability of the overall structure.

[0041] In another embodiment of this utility model, such as Figures 1-3 As shown, the mounting bracket 10 also has a mounting groove 12, and a limiting block 121 extends from the inner wall of the mounting groove 12. A positioning groove 401 is provided at the end of the metal plate 40 that is hinged to the mounting bracket 10. The positioning groove 401 and the limiting block 121 are interlocked. Specifically, this design allows the metal plate 40 to be positioned more precisely during the hinge process, thereby improving the stability and reliability of the lock. This interlocking structure ensures that the metal plate 40 will not shift during use, thus guaranteeing the normal operation of the lock.

[0042] In another embodiment of this utility model, such as Figures 1-3As shown, clamping arms 122 extend from both sides of the mounting groove 12, and the two clamping arms 122 are arranged around the metal plate 40. Specifically, this design allows the metal plate 40 to be better protected when subjected to external forces, thereby improving the durability of the lock. Through this design of the clamping arms 122, the metal plate 40 can be effectively prevented from deforming or being damaged when subjected to impact or collision, thereby extending the service life of the lock.

[0043] In another embodiment of this utility model, such as Figures 1-3 As shown, the bottom of the receiving cavity 11 has a through hole for installing the stationary iron core 30. Specifically, this design makes the installation of the stationary iron core 30 more convenient and quick, while also improving the compactness of the lock. This through hole design simplifies the installation process of the stationary iron core 30, reduces installation time and labor intensity, and makes the overall structure more compact, saving space.

[0044] In another embodiment of this utility model, such as Figures 1-3 As shown, an annular groove is also formed at the bottom of the receiving cavity 11. The annular groove is located on the outer periphery of the through hole, and a washer for cushioning the stationary iron core 30 is disposed within the annular groove. Specifically, this design can not only effectively cushion the vibration generated by the stationary iron core 30 when subjected to impact, but also extend the service life of the stationary iron core 30. By providing an annular groove and washer around the stationary iron core 30, impact force can be absorbed and dispersed, reducing wear on the stationary iron core 30, thereby improving its service life.

[0045] In another embodiment of this utility model, such as Figures 1-3 As shown, the bottom of the receiving cavity 11 is also provided with a limiting hole 13 for limiting the coil assembly 20, and the limiting hole 13 is located on the outer periphery of the annular groove. Specifically, this design allows the coil assembly 20 to be positioned more accurately during installation, thereby improving the stability and reliability of the lock. This limiting hole 13 design ensures that the coil assembly 20 is fixed in position inside the lock, preventing displacement during use, thus improving the overall performance of the lock.

[0046] In another embodiment of this utility model, such as Figures 1-3 As shown, the bottom of the receiving cavity 11 is also provided with a mounting hole 14 for mounting the mounting bracket 10, which is located away from the coil assembly 20. Specifically, this design makes the installation of the mounting bracket 10 more convenient and quick, and also improves the compactness of the lock. By providing a dedicated mounting hole 14 at the bottom of the receiving cavity 11, the installation process of the mounting bracket 10 can be simplified, installation time and labor intensity can be reduced, and the overall structure can be made more compact, saving space.

[0047] In another embodiment of this utility model, such as Figures 1-3 As shown, the inner wall of the mounting hole 14 is provided with threads for mounting the mounting bracket 10. Specifically, this design makes the mounting bracket 10 more secure and reliable, thereby improving the overall stability and durability of the lock. By providing threads on the inner wall of the mounting hole 14, it can be ensured that the mounting bracket 10 is firmly fixed inside the lock, preventing loosening or falling off during use, thereby improving the overall performance of the lock.

[0048] In another embodiment of this utility model, such as Figures 1-3 As shown, a torsion spring is provided at the hinged portion between the metal plate 40 and the mounting bracket 10. Specifically, this design allows the metal plate 40 to be more flexible during the hinge process, thereby improving the ease of use and reliability of the lock. By providing a torsion spring at the hinged portion, the opening and closing of the metal plate 40 can be ensured to be smoother, reducing operating resistance, improving the user experience, and also extending the service life of the lock.

[0049] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lock for an office desk or cabinet, characterized in that: include: Mounting frame, wherein the mounting frame has a receiving cavity; A coil assembly is disposed within the receiving cavity; wherein, the coil assembly has an internal mounting cavity, a stationary iron core is disposed within the mounting cavity, and the adsorption portion of the stationary iron core does not extend beyond the end face of the mounting cavity; A metal plate, one end of which is hinged to the mounting bracket, and the other end of which is movably abutted against the stationary iron core; wherein, the metal plate is provided with a protrusion that matches the shape of the mounting cavity, and when the office desk lock is powered on, the protrusion extends into the mounting cavity and is mutually attracted to the adsorption part of the stationary iron core.

2. The office desk lock according to claim 1, characterized in that: The mounting cavity, the stationary iron core, and the boss are all circular in shape.

3. The office desk lock according to claim 1, characterized in that: The mounting bracket is also provided with a mounting groove, and a limiting block extends from the inner wall of the mounting groove. A positioning groove is provided at one end of the metal plate that is hinged to the mounting bracket, and the positioning groove and the limiting block are interlocked.

4. The office desk lock according to claim 3, characterized in that: Clamping arms extend from both sides of the mounting groove, and the two clamping arms are arranged around the metal plate.

5. The office desk lock according to any one of claims 1 to 4, characterized in that: The bottom of the receiving cavity has a through hole for installing the stationary iron core.

6. The office desk lock according to claim 5, characterized in that: The bottom of the receiving cavity is also provided with an annular groove, which is located on the outer periphery of the through hole, and a washer for buffering the stationary iron core is provided in the annular groove.

7. The office desk lock according to claim 6, characterized in that: The bottom of the receiving cavity is also provided with a limiting hole for limiting the coil assembly, and the limiting hole is located on the outer periphery of the annular groove.

8. The office desk lock according to any one of claims 1 to 4, characterized in that: The bottom of the receiving cavity is also provided with a mounting hole for mounting the mounting bracket, which is located away from the coil assembly.

9. The office desk lock according to claim 8, characterized in that: The inner wall of the mounting hole is provided with threads for mounting the mounting bracket.

10. The office desk lock according to any one of claims 1 to 4, characterized in that: The portion of the metal plate that is hinged to the mounting bracket is equipped with a torsion spring.

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