Lock body
By employing a combination of a drive motor and a drive spring in the lock body, the problems of high power consumption and instability under electromagnet drive control are solved, enabling flexible, quiet, and stable rotation of the lock tongue, thus improving the practicality of the lock body and the user experience.
Patent Information
- Application Number
- CN202520110862.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing lock body relies on electromagnets for driving and controlling the bolt, which results in high power consumption, insufficient stability and high manufacturing cost, affecting practicality.
The lock tongue is connected to the mounting base via a pin and a combination of a drive motor and a drive spring. The drive spring is driven by the rotating shaft of the drive motor to achieve flexible rotation of the lock tongue. Combined with a damping spring and a limiting structure, the quietness and stability of the lock tongue are improved.
It reduces the power consumption of the bolt, improves the stability and reliability of the bolt's operation, extends battery life, reduces production costs, and enhances the practicality of the lock body.
Smart Images

Figure CN223838811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock bodies, specifically to a lock body. Background Technology
[0002] Cabinet locks, as a crucial component for property security, have a wide range of applications, including but not limited to homes, businesses, and industries. The lock body is a vital part of the cabinet lock, with a complex and diverse structure to adapt to the needs of different application scenarios. Furthermore, the lock body can be used in conjunction with intelligent systems to achieve functions such as cabinet door control and access recording. It not only possesses the security performance of traditional locks but also incorporates intelligent management, improving both security and convenience.
[0003] Chinese patent CN 215255314 U discloses a silent lock box, including a main structure. The main structure comprises a bottom shell, a top shell, and connecting parts. The bottom shell and the top shell are closedly connected. A silent lock cylinder assembly is disposed between the bottom shell and the top shell. The silent lock cylinder assembly includes an electromagnet, a spring, a sliding frame, a bolt, a damping ring, and a stainless steel pin. The sliding frame is connected to the bolt, and the bolt and the sliding frame have communicating holes on their sides. The damping ring is disposed inside the sliding frame, and the stainless steel pin passes through the holes in the sliding frame and the bolt. This patent mainly solves the problem of silent locking and opening / closing of the bolt, reducing noise and achieving a silent effect, while also effectively extending the service life of the silent lock cylinder assembly.
[0004] However, although existing lock bodies are relatively perfect in structure and function, some defects still need to be addressed. In the existing technology, the bolt drive of a silent lock box is controlled by an electromagnet to control the relative rotation of the bolt to achieve the action of unlocking or locking. However, the electromagnet consumes a lot of power when it is working, which not only increases the cost of energy use, but may also have an adverse effect on battery life, especially in the case of frequent operation. Moreover, the drive control of the electromagnet may not be stable enough under certain conditions, affecting the stable drive and reliability of the bolt action, and thus affecting the overall performance of the lock and the user experience. In addition, the manufacturing cost of the lock box using the electromagnet drive control is relatively high, which affects its practicality. Utility Model Content
[0005] The purpose of this utility model is to solve the above-mentioned defects and provide a lock body that addresses the technical problems in the prior art where the existing lock tongue, driven and controlled by an electromagnet, easily generates large power consumption, has insufficient stability, and high manufacturing cost, thus affecting its practicality.
[0006] The objective of this utility model is achieved through the following means:
[0007] A lock body includes a housing, a latch disposed on one side of the housing, and a cover mounted on the housing. The housing has an internal cavity, and a slot communicating with the cavity is provided on the side of the housing. The latch is exposed in the slot. The housing has a mounting seat for mounting the latch. The latch is rotatably connected to the mounting seat via a pin. A drive motor for driving the latch to rotate and lock or unlock is disposed in the cavity. A drive spring is sleeved on the rotating shaft of the drive motor, and the rotating shaft of the drive motor extends from the latch and is connected to a drive seat. A guide groove for mounting the drive seat is formed on the mounting seat. The drive seat is connected to the latch via a pin. When the rotating shaft of the drive motor drives the drive spring to rotate, the drive spring drives the drive seat to move closer to or away from the latch, causing the latch to rotate and lock or unlock along the pin.
[0008] Furthermore, as described above, the mounting base is disposed within the receiving cavity, and one side of the mounting base extends toward the slot and forms a mounting groove for mounting the lock tongue. The lock tongue is hinged to the pin via a rotating part, and the lock tongue can rotate via the pin via the rotating part.
[0009] A pin passes through the rotating part of the latch and connects to the mounting base, allowing the latch to rotate radially along the pin. When the latch rotates and protrudes outside the slot, it is locked to the external fixing component. Conversely, when the latch rotates and is retracted into the slot, it is unlocked from the external fixing component.
[0010] Optionally, the locking tongue can rotate 0-90° along the pin via the rotating part.
[0011] Furthermore, as described above, a damping spring is sleeved on the pin, and the damping spring is disposed between the rotating part and the inner wall of the mounting groove.
[0012] The damping springs provided improve the quietness of the bolt as it rotates along the pivot, reducing noise generated when the bolt is unlocking or locking.
[0013] Optionally, a damping ring can be fitted onto the pin to improve the quietness of rotation for unlocking or locking and reduce noise generation.
[0014] Furthermore, as described above, a limiting protrusion is formed inside the receiving cavity, a limiting groove is formed on the side of the limiting protrusion, a connecting protrusion is formed on the mounting base, and a limiting spring is provided between the connecting protrusion and the limiting groove.
[0015] Furthermore, as described above, the drive motor is installed inside the receiving cavity, a limit block is formed on the rotating shaft of the drive motor, one end of the drive spring presses against the limit block, and the other end of the drive spring extends toward the drive seat.
[0016] The drive motor, through the rotation of the rotating shaft, can cause the drive spring to compress or retract in the helical direction, so that the drive spring can drive the drive seat to slide along the guide groove, thereby controlling the rotation of the lock tongue to unlock or lock through the pin.
[0017] Furthermore, as described above, the drive seat is disposed within the guide groove and can move linearly along the guide groove. The pin is sleeved and installed on the drive seat, and one end of the pin is connected to the locking tongue.
[0018] Furthermore, as described above, a power supply chamber is provided inside the receiving cavity, and an opening communicating with the power supply chamber is provided on the side of the housing. A battery electrically connected to the drive motor is provided inside the power supply chamber, and the battery is detachably installed in the power supply chamber via a power supply base, which is slidably disposed in the power supply chamber along the opening.
[0019] Furthermore, as described above, the power supply chamber is equipped with a positive electrode contact spring and a negative electrode contact spring that are electrically connected to the battery.
[0020] By supplying power to the drive motor via a battery, the drive motor can drive the drive spring through a rotating shaft to unlock or lock the bolt, improving the stability and reliability of the bolt's unlocking or locking action. At the same time, the drive motor's drive control consumes less power than the electromagnets in existing technologies, and has a longer battery life, which can improve its applicability in situations requiring frequent operation.
[0021] The beneficial effects of this utility model are as follows: The bolt is rotatably connected by a pin, ensuring the flexibility and reliability of the bolt's movement. Using a drive motor as the power source, combined with the elastic potential energy of the drive spring, enables rapid and smooth rotation of the bolt, improving the automation level of the lock body. Specifically, the drive spring can drive the drive seat to move closer to or further away from the bolt along the guide groove according to the rotation direction of the drive motor, thereby allowing the pin on the drive seat to control the locking and unlocking states of the bolt. Furthermore, compared to existing electromagnet control, the use of a drive motor results in lower power consumption, and in situations of frequent operation, the drive motor, drive spring, and drive seat control are more stable and reliable. Additionally, compared to existing electromagnet control, it reduces manufacturing costs and improves the practicality of the lock body. Attached Figure Description
[0022] Figure 1 This is a perspective view of this embodiment;
[0023] Figure 2 This is a schematic diagram of a partial explosion structure in this embodiment;
[0024] Figure 3 This is a schematic diagram of the overall exploded structure of this embodiment;
[0025] Figure 4 This is a schematic diagram of the shell structure in this embodiment;
[0026] The reference numerals in the figure are as follows: 1-housing, 2-locking tongue, 3-housing cover, 4-accommodating cavity, 5-slot, 6-mounting base, 7-pin, 8-drive motor, 9-rotating shaft, 10-drive spring, 11-drive base, 12-guide groove, 13-pin, 14-mounting groove, 15-damping spring, 16-limiting protrusion, 17-limiting groove, 18-connecting protrusion, 19-limiting spring, 20-limiting block, 21-opening, 22-battery, 23-power socket. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0028] In this embodiment, refer to Figures 1-4 The lock body, specifically implemented therein, includes a housing 1, a latch 2 disposed on one side of the housing 1, and a cover 3 mating and mounted on the housing 1. The housing 1 has an internal cavity 4, and the side of the housing 1 has a slot 5 communicating with the cavity 4. The latch 2 is exposed on the slot 5. The housing 1 has an internal mounting seat 6 for mounting the latch 2. The latch 2 is rotatably connected to the mounting seat 6 via a pin 7. The cavity 4 has a drive motor 8 for driving the latch 2 to rotate and lock or unlock. A drive spring 10 is sleeved on the rotating shaft 9 of the drive motor 8, and the rotating shaft 9 of the drive motor 8 extends toward the latch 2 and is connected to a drive seat 11. The mounting seat 6 has a guide groove 12 for mounting the drive seat 11. The drive seat 11 is connected to the latch 2 via a pin 13. When the rotating shaft 9 of the drive motor 8 drives the drive spring 10 to rotate, the drive spring 10 drives the drive seat 11 to move closer to or away from the latch 2, causing the latch 2 to rotate and lock or unlock along the pin 7.
[0029] The matching installation design of the housing 1 and the cover 3 enhances the overall structural strength of the lock body, effectively prevents external physical damage, and improves the sealing and dustproof performance of the lock body, thus extending its service life.
[0030] Mounting base 6 provides a stable support platform for the bolt 2 and drive assembly, while the design of guide groove 12 ensures that drive base 11 can move along a predetermined path, thereby stably controlling the locking and unlocking actions of bolt 2.
[0031] The mounting base 6 is disposed within the receiving cavity 4, and one side of the mounting base 6 extends towards the slot 5 to form a mounting groove 14 for mounting the latch 2. The latch 2 is hinged to the pin 7 via a rotating part, and the latch 2 can rotate via the rotating part and the pin 7. The pin 7 passes through the rotating part of the latch 2 and connects to the mounting base 6, allowing the latch 2 to rotate radially along the pin 7 via the rotating part. When the latch 2 rotates and protrudes outside the slot 5, the latch 2 is locked and fixed to the external fixing component; conversely, when the latch 2 rotates and is retracted into the slot 5, the latch 2 is unlocked from the external fixing component.
[0032] Specifically, the locking tongue 2 can rotate 0-90° along the pin 7 via the rotating part.
[0033] The design of the slot 5 allows the bolt 2 to be exposed and function normally, while also making it easy to observe the status of the bolt 2, thus improving the practicality and user-friendliness of the lock body.
[0034] A damping spring 15 is sleeved on the pin 7, and the damping spring 15 is disposed between the rotating part and the inner wall of the mounting groove 14. The damping spring 15 can improve the quietness of the latch 2 when rotating along the shaft and reduce the noise generated by the latch 2 when unlocking or locking.
[0035] Optionally, in some embodiments, a damping ring is fitted onto the pin 7 to improve the quietness of rotational unlocking or locking and reduce noise generation.
[0036] A limiting protrusion 16 is formed inside the receiving cavity 4, and a limiting groove 17 is formed on the side of the limiting protrusion 16. A connecting protrusion 18 is formed on the mounting base 6, and a limiting spring 19 is provided between the connecting protrusion 18 and the limiting groove 17.
[0037] The drive motor 8 is installed inside the receiving cavity 4. A limiting block 20 is formed on the rotating shaft 9 of the drive motor 8. One end of the drive spring 10 presses against the limiting block 20, and the other end of the drive spring 10 extends toward the drive seat 11. The rotation of the drive motor 8 via the rotating shaft 9 can cause the drive spring 10 to compress or retract in a spiral direction, so that the drive spring 10 can drive the drive seat 11 to slide along the guide groove 12. Thus, the rotation of the locking tongue 2 can be controlled by the pin 13 to unlock or lock.
[0038] The drive seat 11 is disposed in the guide groove 12 and can move linearly along the guide groove 12. The pin 13 is sleeved and installed on the drive seat 11, and one end of the pin 13 is connected to the locking tongue 2.
[0039] The housing 4 contains a power supply chamber. The side of the housing 1 has an opening 21 communicating with the power supply chamber. A battery 22, electrically connected to the drive motor 8, is housed within the power supply chamber. The battery 22 is detachably mounted within the power supply chamber via a power supply base 23, which can slide along the opening 21. The power supply chamber contains positive and negative contact springs electrically connected to the battery 22.
[0040] The battery 22 provides power to the drive motor 8, which in turn drives the drive spring 10 via the rotating shaft 9 to unlock or lock the latch 2. This improves the stability and reliability of the unlocking or locking action of the latch 2. At the same time, the drive motor 8 consumes less power than the electromagnet in the prior art, and the battery 22 has a longer service life, which can improve its applicability in situations with frequent operation.
[0041] As an example, the lock body of this solution is specifically applied to the doors of wine cabinets, filing cabinets, or other cabinet doors.
[0042] The specific operation process of the lock body in this embodiment is as follows:
[0043] The latch 2 is connected to the mounting base 6 via a pin 7 and rotates along the pin 7, ensuring the flexibility and reliability of the latch 2's operation. A drive motor 8 is used as the power source, combined with the elastic potential energy of the drive spring 10, to achieve rapid and smooth rotation of the latch 2, improving the automation level of the lock body. Specifically, the drive spring 10 can drive the drive base 11 to move closer to or further away from the latch 2 along the guide groove 12 according to the forward / reverse rotation direction of the drive motor 8. Under the rotation of the rotating shaft 9, the drive spring 10 is compressed or pulled in a spiral direction, thereby causing the pin on the drive base 11 to... 13 controls the locking and unlocking states of the latch 2. Specifically, when the latch 2 is exposed outside the slot 5 and parallel to the housing 1, it is in the locked state. When the latch 2 rotates downward along the pin 7 and flips to be perpendicular to the housing 1, it is in the unlocked state. At the same time, compared with the existing electromagnet control, the use of the drive motor 8 has lower power consumption. In the case of frequent operation, the drive motor 8, drive spring 10 and drive seat 11 are more stable and reliable. Compared with the existing electromagnet control, it reduces the manufacturing cost and improves the practicality of the lock body.
[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. A lock body, comprising a housing, a bolt disposed on one side of the housing, and a cover mating and mounted on the housing, wherein the housing has an internal cavity, and a slot communicating with the cavity is provided on the side of the housing, and the bolt is exposed in the slot, characterized in that: The housing has an internal mounting base for mounting the latch. The latch is rotatably connected to the mounting base via a pin. A drive motor is installed inside the cavity to drive the latch to rotate for locking or unlocking. A drive spring is sleeved on the rotating shaft of the drive motor, and the rotating shaft of the drive motor extends towards the latch and is connected to the drive seat. A guide groove for mounting the drive seat is formed on the mounting base. The drive seat is connected to the latch via a pin. When the rotating shaft of the drive motor drives the drive spring to rotate, the drive spring drives the drive seat to move closer to or away from the latch, causing the latch to rotate along the pin for locking or unlocking.
2. The lock body according to claim 1, characterized in that: The mounting base is disposed in the receiving cavity, and one side of the mounting base extends toward the slot and forms a mounting groove for mounting the lock tongue. The lock tongue is hinged to the pin through the rotating part, and the lock tongue can rotate through the pin through the rotating part.
3. The lock body according to claim 2, characterized in that: A damping spring is sleeved on the pin, and the damping spring is located between the rotating part and the inner wall of the mounting groove.
4. The lock body according to claim 1, characterized in that: A limiting protrusion is formed inside the receiving cavity, and a limiting groove is formed on the side of the limiting protrusion. A connecting protrusion is formed on the mounting base, and a limiting spring is provided between the connecting protrusion and the limiting groove.
5. A lock body according to any one of claims 1-4, characterized in that: The drive motor is installed inside the receiving cavity, and a limit block is formed on the rotating shaft of the drive motor. One end of the drive spring presses against the limit block, and the other end of the drive spring extends toward the drive seat.
6. A lock body according to claim 5, characterized in that: The drive seat is located in the guide groove and can move linearly along the guide groove. The pin is sleeved on the drive seat, and one end of the pin is connected to the locking tongue.
7. A lock body according to claim 5, characterized in that: The cavity contains a power supply chamber. The side of the housing has an opening that communicates with the power supply chamber. The power supply chamber contains a battery that is electrically connected to the drive motor. The battery is detachably installed in the power supply chamber via a power supply base, which can slide along the opening in the power supply chamber.
Citation Information
Patent Citations
Mute lock box
CN215255314U