Energy-saving locking mechanism
By introducing a rotating cap and anti-rotation component into the locking mechanism, combined with a micro switch and a mechanical emergency component, the problems of energy waste and poor security performance of existing locking mechanisms are solved, achieving energy-saving and efficient security control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING DUOTAI SMART TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-05
AI Technical Summary
Existing locking mechanisms are complex in structure, have high manufacturing costs, continuously consume electricity leading to energy waste, and have poor security performance when power is off.
An energy-saving locking mechanism was designed. It can maintain the security locking state after power failure by using a rotating cap and anti-rotation component. The locking state is automatically restored by a micro switch and motor. It is also equipped with a mechanical emergency component to manually release the locking state.
It effectively saves energy, ensures security performance even in the event of a power outage, features better automated control, avoids violent disassembly with mechanical emergency components, has a simple structure, and is flexible and convenient to use.
Smart Images
Figure CN224200420U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of security technology, specifically to an energy-saving locking mechanism. Background Technology
[0002] As people's living standards continue to improve, the number of valuables is increasing, and the demand for various safes is also growing. A safe is a lockable cabinet used to store valuables. Currently, there are many types of safes on the market, and they are widely used in offices and homes.
[0003] A safe mainly consists of a safe body and a locking mechanism. The locking mechanism secures the safe, enhancing its security. Currently, known locking mechanisms typically require the user to input a correct electrical signal through an external device, which powers the internal control circuitry to open the safe electronically. After use, closing the safe and then re-energizing the locking mechanism restores the safe's lock. However, existing locking mechanisms of this type are relatively complex in design and expensive to manufacture. To prevent the locking mechanism from being forcibly released by external force, a continuous power supply is usually required to maintain the lock. This is not only energy-intensive but also renders the locking mechanism ineffective during power outages, resulting in poor security and inconvenience. Therefore, it is necessary to propose an improvement to address these technical problems.
[0004] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content
[0005] 1. The technical problem to be solved by the utility model:
[0006] This utility model provides an energy-saving locking mechanism to solve the technical problems existing in the background art.
[0007] 2. Technical Solution:
[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: an energy-saving locking mechanism, comprising a lock cover and a fixed shell, wherein the fixed shell is correspondingly installed on the lock cover; a lock tongue mounting shaft is correspondingly provided in the upper part of the fixed shell, and an arc-shaped lock tongue that can rotate and elastically reset is correspondingly installed on the lock tongue mounting shaft; a slot for the upper part of the lock tongue to extend is correspondingly provided at the top of the fixed shell; a motor mounting bracket is correspondingly installed below the lock tongue in the fixed shell, and a motor is correspondingly installed on the motor mounting bracket, and a rotating cap that is driven to rotate is correspondingly installed on the motor; when the top of the rotating cap is correspondingly pressed against the lower part of the lock tongue, the upper part of the lock tongue extends out of the fixed shell and cannot rotate, maintaining the locked state; when the rotating cap rotates to the point where the top of it does not press against the lower part of the lock tongue, the lock tongue can rotate so that the upper part of the lock tongue is completely retracted into the fixed shell, releasing the locked state; an anti-rotation component is correspondingly provided on the rotating cap to prevent external force from pushing the lock tongue and causing the rotating cap to rotate in the locked state.
[0009] Preferably, a first short shaft is provided on the lower front side of the latch, and a connecting post is provided on one side of the fixed housing. A tension spring is installed between the first short shaft of the latch and the connecting post to achieve elastic reset of the latch.
[0010] Preferably, a second short shaft is provided on the rear side of the lower part of the latch, and a micro switch is also installed in the corresponding position inside the fixed housing; a controller is installed in the lower part of the fixed housing, and the micro switch and the motor are electrically connected to the controller; after the latch is elastically rotated and reset, the second short shaft on the latch will trigger the micro switch, thereby controlling the drive motor to work so that the rotating cap rotates and rests against the lower part of the latch again, restoring the locking state.
[0011] Preferably, the output shaft of the motor has a corresponding cut surface, and the rotating cap has a corresponding semi-circular insertion hole that mates with the output shaft of the motor. The rotating cap is axially slidably mounted on the output shaft of the motor and can rotate together with the output shaft of the motor. The anti-rotation component includes a compression spring and multiple anti-rotation protrusions. The compression spring is fitted onto the outside of the output shaft of the motor, and both ends of the compression spring are respectively connected to the rotating cap and the motor body. The multiple anti-rotation protrusions are arranged in a ring on the side of the rotating cap near the motor. When the locking tongue is pushed by an external force in the locked state, the locking tongue abuts against the rotating cap and slides back until the anti-rotation protrusions abut against the motor mounting bracket, thereby stopping the rotation of the rotating cap and keeping it abutting against the lower part of the locking tongue, maintaining the locked state.
[0012] Preferably, the lower part of the fixed housing is provided with a mechanical emergency component that can drive the motor mounting bracket to move down. When the motor fails, the rotating cap can be moved down to disengage from the locking tongue through the mechanical emergency component, and the mechanical locking state is released.
[0013] Preferably, the motor mounting bracket has a fixing plate on its bottom rear side. The mechanical emergency assembly includes a key and a blade group formed by multiple blades. The blade group is installed on the front side of the fixing plate of the motor mounting bracket. Each blade in the blade group has a corresponding slot on both sides of its top. The bottom sides of the motor mounting bracket have corresponding strip-shaped locking blocks. The blade group can be elastically slid back to its original position laterally. The motor mounting bracket can be elastically slid back to its original position vertically. In its natural state, the strip-shaped locking blocks on both sides of the bottom of the motor mounting bracket are misaligned with the slots on both sides of the top of the blade group. The lock cover has a keyhole for key insertion. When the key is inserted into the lock cover and rotated, the blade group will move laterally, causing the strip-shaped locking blocks on both sides of the bottom of the motor mounting bracket to align with the slots on both sides of the top of the blade group. Continuing to rotate the key will cause the strip-shaped locking blocks to engage with the slots, and the motor mounting bracket will move downwards, causing the rotating cap to move downwards and disengage from the latch, thus mechanically releasing the locking state.
[0014] Preferably, the fixing plate has a first opening in the middle, and an arc groove is provided on the top side of the first opening; each blade has a second opening in the middle, and a groove is provided on the top of each second opening; the key head matches the groove on the second opening of the blade assembly and the arc groove on the first opening of the fixing plate; when the key head is inserted into the lock cover and engages with the groove of the second opening, rotating the key will cause the key head to abut against the groove, causing the blade assembly to move laterally, so that the strip-shaped locking block aligns vertically with the locking groove; continuing to rotate the key will cause the key head to abut against the bottom of the arc groove, causing the motor mounting bracket to move downward, so that the rotating cap moves downward and disengages from the lock tongue.
[0015] Preferably, a spring plate mounting shaft and a torsion spring mounting shaft are respectively provided on corresponding positions on both sides of the fixed housing. A spring plate is installed on the spring plate mounting shaft, with one end of the spring plate abutting against the inner wall of one side of the fixed housing and the other end of the spring plate abutting against one side of the blade assembly. The spring plate allows the blade assembly to slide and reset laterally elastically. A torsion spring is installed on the torsion spring mounting shaft. L-shaped limiting blocks are provided on both sides of the back of the motor mounting bracket. One end of the torsion spring abuts against the inner wall of the other side of the fixed housing and the other end of the torsion spring abuts against the bottom of the L-shaped limiting block of the motor mounting bracket. The torsion spring allows the motor mounting bracket to slide and reset vertically elastically.
[0016] Preferably, each blade in the blade assembly has a U-shaped groove on both its left and right sides, and the inner sides of the fixed housing have corresponding limiting posts that slide and engage with the U-shaped groove laterally; the lower center of the fixed housing has a corresponding limiting guide rail, and the bottom sides of the fixing plate of the motor mounting bracket have corresponding limiting protrusions, and the motor mounting bracket is vertically slidably mounted on the limiting guide rail through two limiting protrusions; a positioning rod is provided at a corresponding position on the limiting guide rail inside the fixed housing, and the key head has a corresponding positioning hole that engages with the positioning rod; abutment blocks extend from the side walls of the inner sides of the fixed housing, and when the motor mounting bracket moves up to the top of the rotating cap and abuts the lower part of the lock tongue, the upper sides of the motor mounting bracket can abut against the bottom of the abutment blocks on both sides of the fixed housing.
[0017] 3. Beneficial effects:
[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:
[0019] This utility model features a reasonable design. By cleverly incorporating a simple anti-rotation component on the rotating cap, the motor can be powered off once it rests against the lower part of the latch during operation. The anti-rotation component ensures the locking mechanism remains in a secure locked state, effectively preventing external force from forcibly disengaging the latch and thus significantly saving energy. It also ensures the locking effect remains intact even when power is off, greatly improving security performance. Furthermore, the microswitch within the locking mechanism better fulfills the need for automated control. When the latch springs back to its original position, the second short shaft on the latch triggers the microswitch, controlling the drive motor to rotate the cap back to rest against the lower part of the latch, automatically restoring the locked state. This provides better automation and prevents situations where the locking mechanism is forgotten after the safe is closed.
[0020] In addition, this utility model also includes a mechanical emergency component within the locking mechanism that can drive the motor mounting bracket to move downwards. Its specific structure has been optimized so that when the motor malfunctions, the key can be manually inserted and turned. The mechanical emergency component then moves the entire motor mounting bracket downwards, causing the rotating cap to move down and disengage from the latch, thus manually releasing the lock and opening the safe. This avoids the need for forceful disassembly of the locking mechanism and achieves a mechanical emergency response. Its overall structural design is simple and ingenious, effectively controlling manufacturing costs. It is highly flexible and convenient to use, practical, and worthy of promotion.
[0021] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the external structure of the locking mechanism of this utility model;
[0023] Figure 2 This is a schematic diagram of the internal structure of the locking mechanism of this utility model without the lock cover installed;
[0024] Figure 3 This is a schematic diagram of the internal structure of the locking mechanism of this utility model without the installation of the fixing shell;
[0025] Figure 4 This is a schematic diagram showing the installation and assembly of the various components inside the locking mechanism of this utility model;
[0026] Figure 5 In this utility model Figure 4 Another perspective structural diagram;
[0027] Figure 6 This is a schematic diagram of the structure of the fixing shell of this utility model;
[0028] Figure 7 This is a schematic diagram of the installation structure of the rotating cap and the motor in this utility model;
[0029] Figure 8 This is a schematic diagram of the motor mounting bracket of this utility model;
[0030] Figure 9 This is a schematic diagram of the key structure of this utility model.
[0031] Figure label:
[0032] 1. Lock cover; 2. Fixed shell; 201. Connecting post; 202. Limiting post; 203. Limiting guide rail; 204. Positioning rod; 205. Spring mounting shaft; 206. Torsion spring mounting shaft; 207. Limiting short shaft; 208. Abutting block; 209. Abutting rod; 3. Locking tongue; 301. First short shaft; 302. Second short shaft; 4. Motor mounting bracket; 401. Strip-shaped locking block; 402. L-shaped limiting block; 403. Fixing plate; 404. Limiting protrusion; 405. First opening; 406, arc groove; 407, motor mounting slot; 5, motor; 501, output shaft; 6, rotating cap; 601, arc-shaped conical surface; 602, semi-circular insertion hole; 7, tension spring; 8, micro switch; 9, blade; 901, slot; 902, U-shaped groove; 903, second opening; 904, groove; 10, spring piece; 11, torsion spring; 12, latch mounting shaft; 13, compression spring; 14, anti-rotation protrusion; 15, key; 1501, positioning insertion hole. Detailed Implementation
[0033] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.
[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0035] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; 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. Example
[0037] See attached document Figure 1-9This embodiment of an energy-saving locking mechanism includes a lock cover 1 and a fixed shell 2, with the fixed shell 2 correspondingly mounted on the lock cover 1. A lock tongue mounting shaft 12 is provided in the upper part of the fixed shell 2, and an arc-shaped lock tongue 3 that can rotate and elastically return to its original position is mounted on the lock tongue mounting shaft 12. A slot for the upper part of the lock tongue 3 to extend from the top of the fixed shell 2 is provided. A motor mounting bracket 4 is installed below the lock tongue 3 inside the fixed shell 2, and a motor mounting groove 407 is provided on the upper part of the motor mounting bracket 4. A motor 5 is installed in the motor mounting groove 407, and a rotating cap 6 that is driven to rotate is mounted on the motor 5. The top of the rotating cap 6 has arc-shaped conical surfaces 601 on both sides, and the lower part of the latch 3 near the rotating cap 6 has a slope. When the top of the rotating cap 6 abuts against the slope of the lower part of the latch 3, the upper part of the latch 3 extends out of the fixed shell 2 and cannot rotate, maintaining the locked state. When the rotating cap 6 rotates to the point where its top no longer abuts against the slope of the lower part of the latch 3, the latch 3 can rotate, causing the upper part of the latch 3 to retract completely into the fixed shell 2, releasing the locked state. The rotating cap 6 is equipped with an anti-rotation component to prevent external force from pushing the latch 3 and causing the rotating cap 6 to rotate when locked.
[0038] Specifically, a first short shaft 301 is provided on the lower front side of the latch 3, and a connecting post 201 is provided on one side of the fixed housing 2. A tension spring 7 is installed between the first short shaft 301 and the connecting post 201 of the latch 3, and the latch 3 is elastically reset by the tension spring 7. A second short shaft 302 is provided on the lower rear side of the latch 3, and a micro switch 8 is installed in the corresponding position inside the fixed housing 2. A control circuit board (not shown in the figure) is installed in the lower part of the fixed housing 2, and a controller is installed on the control circuit board. The micro switch 8 and the motor 5 are electrically connected to the controller. After the latch 3 elastically rotates and resets, the second short shaft 302 on the latch 3 will trigger the micro switch 8, thereby controlling the drive motor 5 to work so that the rotating cap 6 rotates and rests against the lower part of the latch 3 again, restoring the locked state.
[0039] The output shaft 501 of the motor 5 has a corresponding cut surface, and the rotating cap 6 has a corresponding semi-circular insertion hole 602 that cooperates with the output shaft 501 of the motor 5. The rotating cap 6 is axially slidably mounted on the output shaft 501 of the motor 5 and can rotate together with the output shaft 501 of the motor 5. The anti-rotation component includes a compression spring 13 and a plurality of anti-rotation protrusions 14. The compression spring 13 is correspondingly sleeved on the outside of the output shaft 501 of the motor 5, and the two ends of the compression spring 13 are respectively connected to the rotating cap 6 and the motor body of the motor 5. The plurality of anti-rotation protrusions 14 are correspondingly distributed in a ring on the side of the rotating cap 6 near the motor 5. When the motor 5 drives the rotating cap 6 to rotate until its top abuts against the bottom slope of the locking tongue 3, i.e., in the locked state, after the motor 5 is de-energized, if an external force pushes the locking tongue 3, the locking tongue 3 will push against the rotating cap 6, causing it to slide backward until the anti-rotation protrusion 14 abuts against the motor mounting bracket 4. If the external force continues to push the locking tongue 3, the locking tongue 3 will continue to exert a twisting and backward force on the rotating cap 6. At this time, since the anti-rotation protrusion 14 is already abutting against the motor mounting bracket 4, the rotation tendency of the rotating cap 6 will be stopped by the friction, so that the rotating cap 6 still abuts against the lower part of the locking tongue 3, maintaining the locked state. To further ensure its installation effect, the side of the motor mounting bracket 4 that contacts the anti-rotation protrusion 14 can be provided with multiple serrated locking strips at circumferential intervals. When the rotating cap 6 retracts, the anti-rotation protrusion 14 can abut against the adjacent serrated locking strips to further ensure that the rotating cap 6 will not continue to rotate, ensuring its security effect and saving power.
[0040] The lower part of the fixed housing 2 is equipped with a mechanical emergency component that can drive the motor mounting bracket 4 to move downwards. When the motor 5 malfunctions, the mechanical emergency component can move the rotating cap 6 downwards to disengage from the locking tongue 3, mechanically releasing the locking state. Specifically, a fixing plate 403 is provided on the rear side of the bottom of the motor mounting bracket 4. The mechanical emergency component includes a key 15 and a blade assembly formed by multiple blades 9. The blade assembly is installed on the front side of the fixing plate 403 of the motor mounting bracket 4. Each blade 9 in the blade assembly has a corresponding slot 901 on both sides of its top. The bottom sides of the motor mounting bracket 4 are provided with strip-shaped locking blocks 401. The blade assembly can be elastically slid back to its original position laterally, and the motor mounting bracket 4 can be elastically slid back to its original position vertically. In its natural state, the strip-shaped locking blocks 401 on both sides of the bottom of the motor mounting bracket 4 are misaligned with the slots 901 on both sides of the top of the blade assembly. The lock cover 1 is provided with a keyhole for inserting the key 15. When the key 15 is inserted into the lock cover 1 and rotated, the blade assembly will move laterally, so that the strip-shaped locking blocks 401 on both sides of the bottom of the motor mounting bracket 4 correspond to the locking slots 901 on both sides of the top of the blade assembly. Continuing to rotate the key 15 will cause the strip-shaped locking blocks 401 to be locked into the locking slots 901, and the motor mounting bracket 4 will move down as a whole, so that the rotating cap 6 moves down and disengages from the locking tongue 3, thus mechanically releasing the locking state.
[0041] The fixing plate 403 has a first opening 405 in the middle, and a 90-degree arc groove 406 on one side of the top of the first opening 405. Each blade 9 has a second opening 903 in the middle, and a groove 904 on the top of each second opening 903. The head of the key 15 matches the groove 904 on the second opening 903 of the blade assembly and the arc groove 406 on the first opening 405 of the fixing plate 403. Inserting the head of the key 15 into the lock cover 1 and engaging with the groove 904 of the second opening 903, rotating the key 15 causes the head of the key 15 to press against the groove 904, moving the blade assembly laterally and aligning the strip-shaped locking block 401 vertically with the slot 901. Continuing to rotate the key 15 causes the head of the key 15 to press against the bottom of the arc groove 406, moving the motor mounting bracket 4 downwards and causing the rotating cap 6 to move downwards and disengage from the locking tongue 3, thus mechanically releasing the locking state.
[0042] The fixed housing 2 has spring plate mounting shafts 205 and torsion spring mounting shafts 206 at corresponding positions on both sides. A spring plate 10 is mounted on the spring plate mounting shaft 205, with one end abutting against the inner wall of one side of the fixed housing 2 and the other end abutting against one side of the blade assembly. The spring plate 10 allows the blade assembly to slide laterally and elastically return to its original position. A torsion spring 11 is mounted on the torsion spring mounting shaft 206. L-shaped limiting blocks 402 are provided on both sides of the back of the motor mounting bracket 4. One end of the torsion spring 11 abuts against the inner wall of the other side of the fixed housing 2, and the other end abuts against the bottom of the L-shaped limiting block 402 of the motor mounting bracket 4. The torsion spring 11 allows the motor mounting bracket 4 to slide vertically and elastically return to its original position. After the key 15 is released, the motor mounting bracket 4 will elastically slide upward and reset under the action of the torsion spring 11, causing the strip-shaped locking blocks 401 on both sides of the bottom of the motor mounting bracket 4 to disengage from the locking slots 901 on both sides of the top of the blade assembly. At this time, the blade assembly will elastically slide horizontally and reset under the action of the spring piece 10, so that the strip-shaped locking blocks 401 on both sides of the bottom of the motor mounting bracket 4 are misaligned with the locking slots 901 on both sides of the top of the blade assembly, achieving a complete reset and facilitating the next use.
[0043] Each blade 9 of the blade assembly has a U-shaped groove 902 on both its left and right sides. The inner sides of the fixing shell 2 are provided with limiting posts 202 that slide laterally into the U-shaped grooves 902, thus limiting the lateral sliding of the blade assembly. A limiting guide rail 203 is provided in the lower center of the fixing shell 2. Limiting protrusions 404 are provided on both sides of the bottom of the fixing plate 403 of the motor mounting bracket 4. The motor mounting bracket 4 is vertically slidably mounted on the limiting guide rail 203 via two limiting protrusions 404, thus limiting the vertical sliding of the motor mounting bracket 4.
[0044] A positioning rod 204 is provided at a corresponding position on the limiting guide rail 203 inside the fixed shell 2. The positioning rod 204 passes through the middle of the first opening 405 and the second opening 903 and corresponds to the keyhole position on the lock cover 1. The head of the key 15 is provided with a positioning insertion hole 1501 that engages with the positioning rod 204 so that the key 15 can be accurately inserted. Abutment blocks 208 are provided on the two side walls inside the fixed shell 2. Abutment rods 209 are also provided at corresponding positions inside the fixed shell 2. When the motor mounting bracket 4 moves up to the top of the rotating cap 6 and abuts the lower part of the lock tongue 3, the upper two sides of the motor mounting bracket 4 can abut against the bottom of the abutment blocks 208 on both sides inside the fixed shell 2, and the top of the motor mounting bracket 4 abuts against the bottom of the abutment rods 209. The fixed shell 2 is also provided with limiting short shafts 207 at corresponding positions on both sides. The two L-shaped limiting blocks 402 on the back of the motor mounting bracket 4 are vertically slidably engaged between the two limiting short shafts 207. By optimizing the specific structure and installation of the motor mounting bracket 4 and the fixed shell 2, the installation and movement of the motor mounting bracket 4 are made more stable and reliable.
[0045] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An energy-saving locking mechanism, characterized in that: Includes a lock cover (1) and a fixed shell (2), the fixed shell (2) being installed on the lock cover (1); the upper part of the fixed shell (2) is provided with a lock tongue mounting shaft (12), and an arc-shaped lock tongue (3) that can rotate and elastically return is installed on the lock tongue mounting shaft (12); the top of the fixed shell (2) is provided with a slot for the upper part of the lock tongue (3) to extend; a motor mounting bracket (4) is installed below the lock tongue (3) inside the fixed shell (2), and a motor (5) is installed on the motor mounting bracket (4); the motor (5) The rotating cap (6) is installed on the corresponding part of the locking tongue (3). When the top of the rotating cap (6) is against the lower part of the locking tongue (3), the upper part of the locking tongue (3) extends out of the fixed shell (2) and cannot rotate, thus maintaining the locked state. When the rotating cap (6) rotates to the point where the top does not abut against the lower part of the locking tongue (3), the locking tongue (3) can rotate so that the upper part of the locking tongue (3) is completely retracted into the fixed shell (2), thus releasing the locked state. The rotating cap (6) is provided with an anti-rotation component to prevent external force from pushing the locking tongue (3) and causing the rotating cap (6) to rotate in the locked state.
2. The energy-saving locking mechanism according to claim 1, characterized in that: The lower front side of the latch (3) is provided with a first short shaft (301), and the inner side of the fixed shell (2) is provided with a connecting post (201). A tension spring (7) is installed between the first short shaft (301) of the latch (3) and the connecting post (201), and the elastic reset of the latch (3) is achieved by the tension spring (7).
3. The energy-saving locking mechanism according to claim 2, characterized in that: The lower rear side of the latch (3) is provided with a second short shaft (302), and a micro switch (8) is also installed in the corresponding position inside the fixed shell (2); a controller is installed in the lower part of the fixed shell (2), and the micro switch (8) and the motor (5) are electrically connected to the controller; after the latch (3) is elastically rotated and reset, the second short shaft (302) on the latch (3) will touch the micro switch (8), thereby controlling the drive motor (5) to work so that the rotating cap (6) rotates and abuts against the lower part of the latch (3) again, restoring the locking state.
4. The energy-saving locking mechanism according to claim 1, characterized in that: The output shaft (501) of the motor (5) is provided with a corresponding cut surface, and the rotating cap (6) is provided with a corresponding semi-circular insertion hole (602) that cooperates with the output shaft (501) of the motor (5). The rotating cap (6) is axially slidably mounted on the output shaft (501) of the motor (5) and can rotate together with the output shaft (501) of the motor (5). The anti-rotation component includes a compression spring (13) and multiple anti-rotation protrusions (14). The compression spring (13) is correspondingly sleeved on the output shaft (501) of the motor (5). 1) On the outside, the two ends of the compression spring (13) are respectively connected to the rotating cap (6) and the motor (5) body. The multiple anti-rotation protrusions (14) are arranged in a ring on the side of the rotating cap (6) near the motor (5). When the external force pushes the locking tongue (3) in the locked state, the locking tongue (3) abuts against the rotating cap (6) and slides back until the anti-rotation protrusion (14) abuts against the motor mounting bracket (4), which can stop the rotating cap (6) from rotating and keep it abutting against the lower part of the locking tongue (3) to maintain the locked state.
5. An energy-saving locking mechanism according to any one of claims 1-4, characterized in that: The lower part of the fixed shell (2) is provided with a mechanical emergency component that can drive the motor mounting bracket (4) to move down. When the motor (5) fails, the rotating cap (6) can be moved down to disengage from the locking tongue (3) through the mechanical emergency component, and the mechanical locking state is released.
6. The energy-saving locking mechanism according to claim 5, characterized in that: The motor mounting bracket (4) has a fixing plate (403) on its bottom rear side. The mechanical emergency component includes a key (15) and a blade group formed by multiple blades (9). The blade group is installed on the front side of the fixing plate (403) of the motor mounting bracket (4). Each blade (9) in the blade group has a slot (901) on both sides of its top. The bottom sides of the motor mounting bracket (4) have strip-shaped locking blocks (401). The blade group can be elastically slid and reset laterally. The motor mounting bracket (4) can be elastically slid and reset vertically. In its natural state, the strip-shaped locking blocks on both sides of the bottom of the motor mounting bracket (4) are... The shaped locking block (401) is misaligned with the slots (901) on both sides of the top of the blade assembly; the lock cover (1) is provided with a keyhole for inserting the key (15); when the key (15) is inserted into the lock cover (1) and rotated, the blade assembly will move laterally, so that the strip-shaped locking blocks (401) on both sides of the bottom of the motor mounting bracket (4) correspond to the slots (901) on both sides of the top of the blade assembly. When the key (15) is rotated, the strip-shaped locking block (401) will be inserted into the slot (901), the motor mounting bracket (4) will move down as a whole, so that the rotating cap (6) moves down and disengages from the lock tongue (3), and the mechanical locking state is released.
7. The energy-saving locking mechanism according to claim 6, characterized in that: The fixing plate (403) is provided with a first opening (405) in the middle, and an arc groove (406) is provided on one side of the top of the first opening (405); the blades (9) are provided with a second opening (903) in the middle, and a groove (904) is provided on the top of the second opening (903); the head of the key (15) matches the groove (904) on the second opening (903) of the blade assembly and the arc groove (406) on the first opening (405) of the fixing plate (403); Insert the head of the key (15) into the lock cover (1) and engage with the groove (904) of the second opening (903). Rotate the key (15), and the head of the key (15) will press against the groove (904) to make the blade group move laterally, so that the strip block (401) and the slot (901) are vertically aligned. Continue to rotate the key (15), and the head of the key (15) will press against the bottom of the arc groove (406) to make the motor mounting bracket (4) move downward, so that the rotating cap (6) moves down and disengages from the lock tongue (3).
8. The energy-saving locking mechanism according to claim 6, characterized in that: The fixed housing (2) has a spring plate mounting shaft (205) and a torsion spring mounting shaft (206) respectively on the two sides. A spring plate (10) is installed on the spring plate mounting shaft (205). One end of the spring plate (10) abuts against the inner wall of one side of the fixed housing (2), and the other end of the spring plate (10) abuts against the side of the blade group. The blade group is elastically slid and reset laterally through the spring plate (10). A torsion spring (11) is installed on the torsion spring mounting shaft (206). L-shaped limit blocks (402) are provided on both sides of the back of the motor mounting bracket (4). One end of the torsion spring (11) abuts against the inner wall of the other side of the fixed housing (2), and the other end of the torsion spring (11) abuts against the bottom of the L-shaped limit block (402) of the motor mounting bracket (4). The motor mounting bracket (4) is elastically slid and reset vertically through the torsion spring (11).
9. The energy-saving locking mechanism according to claim 6, characterized in that: Each blade (9) of the blade assembly has a U-shaped groove (902) on both the left and right sides. The inner sides of the fixing shell (2) are provided with limiting posts (202) that slide and engage with the U-shaped groove (902) laterally. The lower middle part of the fixing shell (2) is provided with a limiting guide rail (203). The bottom sides of the fixing plate (403) of the motor mounting bracket (4) are provided with limiting protrusions (404). The motor mounting bracket (4) is vertically slidably mounted on the limiting guide rail (203) through the two limiting protrusions (404). The fixed housing (2) has a positioning rod (204) on the corresponding position of the limiting guide rail (203) and the head of the key (15) has a positioning hole (1501) that is engaged with the positioning rod (204). The fixed housing (2) has a corresponding abutment block (208) extending on the two side walls. When the motor mounting bracket (4) moves up to the top of the rotating cap (6) and abuts the lower part of the lock tongue (3), the upper two sides of the motor mounting bracket (4) can abut against the bottom of the abutment block (208) on both sides of the fixed housing (2).