Energy-saving locking mechanism

Abstract

The invention provides an energy-saving locking mechanism which comprises a lock cover and a fixing shell, and the fixing shell is installed on the lock cover. A spring bolt installation shaft is arranged on the upper portion in the fixing shell, an arc-shaped spring bolt capable of rotating and elastically resetting is installed on the spring bolt installation shaft, and a notch allowing the upper portion of the spring bolt to stretch out is formed in the top of the fixing shell. A motor installation frame is installed below the spring bolt in the fixing shell, a motor is installed on the motor installation frame, and a rotating cap driven to rotate is installed on the motor. When the top end of the rotating cap abuts against the lower portion of the spring bolt, the upper portion of the spring bolt extends out of the fixing shell and cannot rotate, and the locking state is kept. When the rotating cap rotates to the top end and does not abut against the lower portion of the spring bolt, the spring bolt can rotate so that the upper portion of the spring bolt can completely retract into the fixing shell, and the locking state is relieved. The electric energy is greatly saved, the security and protection locking effect can still be kept during power failure, the automation effect is better, the overall design is simple and ingenious, use is flexible and convenient, and practicability is high.

Description

Technical Field

[0001] The invention mainly relates to the technical field of security, and in particular to an energy-saving locking mechanism. Background Art

[0002] As people's living standards continue to improve, there are more and more valuables, and people's demand for various safes is also increasing. A safe is a locked cabinet for storing valuables. There are many types of safes on the market, which are widely used in offices and homes.

[0003] The safe is mainly composed of a safe body and a locking mechanism. The safe is locked for security by the locking mechanism to improve its safety. At present, the known locking mechanism generally requires the user to input the correct electrical signal through an external device when in use, so that the control circuit in the box provides power to the locking mechanism to realize electronic opening; after use, the safe is closed, and the locking mechanism is driven by electricity to restore the security locking state of the safe. However, the existing locking mechanism of this type has a relatively complex structural design and a high manufacturing cost. In order to avoid forcibly releasing the security locking state by pushing the lock tongue to rotate by external force during use, it is generally necessary to continuously provide power to the locking mechanism so that the locking mechanism maintains the security locking state. This not only wastes a lot of electricity, but also cannot ensure the security locking effect when the power is off, the security performance is poor, and it is inconvenient to use. Therefore, it is necessary to propose an improvement measure to solve the above technical problems.

[0004] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Summary of the invention

[0005] 1. Technical problems to be solved by the invention: The present invention provides an energy-saving locking mechanism to solve the technical problems existing in the above-mentioned background technology.

[0006] 2. Technical solution: To achieve the above object, the technical solution provided by the present invention is: an energy-saving locking mechanism, including a lock cover and a fixed shell, and the fixed shell is correspondingly installed on the lock cover; a locking tongue mounting shaft is correspondingly provided in the upper part of the fixed shell, and an arc-shaped locking tongue that can rotate and elastically reset is correspondingly installed on the locking tongue mounting shaft, and a notch for the upper part of the locking tongue to protrude is correspondingly provided at the top of the fixed shell; a motor mounting bracket is correspondingly installed below the locking tongue in the fixed shell, a motor is correspondingly installed on the motor mounting bracket, and a rotating cap driven to rotate is correspondingly installed on the motor; when the top of the rotating cap correspondingly abuts against the lower part of the locking tongue, the upper part of the locking tongue protrudes outside the fixed shell and cannot rotate, maintaining the locked state; when the rotating cap rotates to the top not abutting against the lower part of the locking tongue, the locking tongue can rotate so that the upper part of the locking tongue completely retracts into the fixed shell, releasing the locked state; an anti-rotation component is correspondingly provided on the rotating cap to prevent the rotating cap from rotating when an external force pushes the locking tongue in the locked state.

[0007] Preferably, a first short shaft is correspondingly provided on the front side of the lower part of the locking tongue, a connecting column is correspondingly provided at a corresponding position on one side in the fixed shell, and a tension spring is correspondingly installed between the first short shaft of the locking tongue and the connecting column to achieve the elastic reset of the locking tongue through the tension spring.

[0008] Preferably, a second short shaft is correspondingly provided on the rear side of the lower part of the locking tongue, and a microswitch is also installed at a corresponding position in the fixed shell; a controller is correspondingly installed in the lower part of the fixed shell, and the microswitch and the motor are correspondingly electrically connected to the controller; after the locking tongue elastically rotates and resets, the second short shaft on the locking tongue will touch the microswitch, thereby controlling the driving motor to work so that the rotating cap rotates and abuts against the lower part of the locking tongue again, restoring the locked state.

[0009] Preferably, a cutting surface is correspondingly provided on the output shaft of the motor, a semi-circular jack corresponding to the output shaft of the motor is provided on the rotating cap, the rotating cap is axially slidably installed 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 a plurality of anti-rotation protrusions, the compression spring is correspondingly sleeved outside the output shaft of the motor, and both ends of the compression spring are correspondingly connected to the rotating cap and the motor body respectively, and the plurality of anti-rotation protrusions are correspondingly annularly distributed on the side surface of the rotating cap close to the motor; when an external force pushes the locking tongue in the locked state, the locking tongue abuts against the rotating cap and makes it slide backward until the anti-rotation protrusions abut against the motor mounting bracket, then the rotation of the rotating cap can be stopped so that it still abuts against the lower part of the locking tongue, maintaining the locked state.

[0010] Preferably, a mechanical emergency component for driving the motor mounting bracket to move downward is correspondingly provided in the lower part of the fixed shell. When the motor fails, the rotating cap can be moved downward by the mechanical emergency component to disengage from the locking tongue, mechanically releasing the locked state.

[0011] Preferably, a fixing plate is correspondingly provided at the rear side of the upper bottom of the motor mounting bracket. The mechanical emergency component includes a key and a blade group formed by multiple blades. The blade group is correspondingly mounted on the front side of the fixing plate of the motor mounting bracket. Slots are correspondingly opened on both sides of the top of each blade of the blade group. Strip-shaped clamping blocks are correspondingly provided on both sides of the bottom of the motor mounting bracket; the blade group can slide horizontally and elastically to reset; the motor mounting bracket can slide vertically and elastically to reset. In the natural state, the strip-shaped clamping blocks on both sides of the bottom of the motor mounting bracket are arranged in a staggered manner with the slots on both sides of the top of the blade group; a keyhole for inserting the key is correspondingly provided on the lock cover; when the key is correspondingly inserted into the lock cover and rotated, it will drive the blade group to move horizontally, so that the strip-shaped clamping blocks on both sides of the bottom of the motor mounting bracket correspond to the slots on both sides of the top of the blade group. Continuing to rotate the key will cause the strip-shaped clamping blocks to be correspondingly clamped into the slots, and the whole motor mounting bracket will move downward, so that the rotating cap moves downward and disengages from the lock tongue, and the mechanical lock is released.

[0012] Preferably, a first opening is correspondingly provided in the middle of the fixing plate, and an arc groove is correspondingly provided on one side of the top of the first opening; second openings are correspondingly provided in the middle of each blade, and grooves are correspondingly provided on the top of each second opening; the head of the key matches the groove on the second opening of the blade group and the arc groove on the first opening of the fixing plate; when the head of the key is correspondingly inserted into the lock cover and inserted into the groove of the second opening and is in plug-in fit, and the key is rotated, the head of the key will abut against the groove to make the blade group move horizontally, so that the strip-shaped clamping blocks and the slots are vertically corresponding. Continuing to rotate the key, the head of the key will abut against the bottom of the arc groove to make the motor mounting bracket move downward, so that the rotating cap moves downward and disengages from the lock tongue.

[0013] Preferably, a shrapnel mounting shaft and a torsion spring mounting shaft are respectively provided at corresponding positions on both sides inside the fixed shell. A shrapnel is correspondingly mounted on the shrapnel mounting shaft. One end of the shrapnel correspondingly abuts against the inner wall of one side of the fixed shell, and the other end of the shrapnel correspondingly abuts against one side of the blade group. The blade group slides horizontally and elastically to reset through the shrapnel; a torsion spring is correspondingly mounted on the torsion spring mounting shaft. L-shaped limiting blocks are correspondingly provided on both sides of the back of the motor mounting bracket. One end of the torsion spring correspondingly abuts against the inner wall of the other side of the fixed shell, and the other end of the torsion spring correspondingly abuts against the bottom of the L-shaped limiting block of the motor mounting bracket. The motor mounting bracket slides vertically and elastically to reset through the torsion spring.

[0014] Preferably, each blade of the blade group is provided with a U-shaped groove on the left and right sides, and the fixed shell is provided with limit columns on both sides that are laterally slidably plugged into the U-shaped groove; a limit guide rail is provided on the middle part of the lower side of the fixed shell, and limit protrusions are provided on both sides of the bottom of the fixed plate of the motor mounting frame, and the motor mounting frame is vertically slidably installed on the limit guide rail through two limit protrusions; a positioning rod is provided at the corresponding position on the limit guide rail in the fixed shell, and a positioning hole that is plugged into the positioning rod is provided on the key head; abutment blocks are extended on the side walls on both sides of the fixed shell, and when the motor mounting frame moves up to the top of the rotating cap and abuts the lower part of the lock tongue, the two sides of the upper part of the motor mounting frame can correspondingly abut the bottom of the abutment blocks on both sides of the fixed shell.

[0015] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is reasonably designed. By correspondingly setting a simple and clever anti-rotation component on the rotating cap, when in use, the motor can be powered off after the rotating cap is pressed against the lower part of the lock tongue by the motor, and the anti-rotation component can be used to keep the locking mechanism in a security locking state, which can effectively prevent the external force from pushing the lock tongue to rotate to forcibly release the security locking state, thereby greatly saving electric energy, and also ensuring that the security locking effect is still maintained in the case of power failure, greatly improving its security performance. Furthermore, the setting of the micro switch in the locking mechanism also better realizes the demand for automated control. When the lock tongue is elastically rotated and reset, the second short shaft set on the lock tongue will trigger the micro switch, thereby controlling the drive motor to work so that the rotating cap rotates and presses against the lower part of the lock tongue again, automatically restoring the locked state, and having a better automated effect, avoiding the situation where the lock state is manually forgotten to be started after the safe is closed.

[0016] In addition, the present invention also has a corresponding mechanical emergency component in the locking mechanism that can drive the motor mounting frame to move downward, and optimizes its specific structure so that when the motor fails, the key can be manually inserted and turned, and the mechanical emergency component is used to drive the motor mounting frame to move downward as a whole, thereby driving the rotating cap to move downward to disengage from the lock tongue, and the mechanical manual unlocking state is released to open the safe, avoiding the situation of violent disassembly of the locking mechanism, and realizing mechanical emergency. The overall structural design is relatively simple and ingenious, the manufacturing cost is better controlled, the overall use is very flexible and convenient, and it is highly practical, and it is worthy of promotion.

[0017] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1Schematic diagram of the external structure of the locking mechanism of the present invention; Figure 2 Schematic diagram of the internal structure of the locking mechanism of the present invention without the lock cover installed; Figure 3 Schematic diagram of the internal structure of the locking mechanism of the present invention without the fixing shell installed; Figure 4 Schematic diagram of the installation and cooperation of each component inside the locking mechanism of the present invention; Figure 5 In the present invention Figure 4 Schematic diagram of the structure from another perspective; Figure 6 Schematic diagram of the structure of the fixing shell of the present invention; Figure 7 Schematic diagram of the installation structure of the rotating cap and the motor in the present invention; Figure 8 Schematic diagram of the structure of the motor mounting bracket of the present invention; Figure 9 Schematic diagram of the structure of the key of the present invention.

[0019] Reference numerals: 1, lock cover; 2, fixing shell; 201, connecting column; 202, limiting column; 203, limiting guide rail; 204, positioning insertion rod; 205, elastic sheet mounting shaft; 206, torsion spring mounting shaft; 207, limiting short shaft; 208, abutting block; 209, abutting rod; 3, lock tongue; 301, first short shaft; 302, second short shaft; 4, motor mounting bracket; 401, strip-shaped clamping block; 402, L-shaped limiting block; 403, fixing plate; 404, limiting convex block; 405, first opening; 406, arc groove; 407, motor mounting groove; 5, motor; 501, output shaft; 6, rotating cap; 601, arc-shaped conical surface; 602, semi-circular jack; 7, tension spring; 8, micro switch; 9, blade; 901, clamping groove; 902, U-shaped groove; 903, second opening; 904, groove; 10, elastic sheet; 11, torsion spring; 12, lock tongue mounting shaft; 13, compression spring; 14, anti-rotation protrusion; 15, key; 1501, positioning jack. Detailed implementation manners

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0023] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", "provided with", "provided in", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment

[0024] Refer to the attached Figure 1-9, an energy-saving locking mechanism of this embodiment includes a lock cover 1 and a fixed housing 2, and the fixed housing 2 is correspondingly installed on the lock cover 1. An upper part inside the fixed housing 2 is correspondingly provided with a lock tongue mounting shaft 12, and an arc-shaped lock tongue 3 that can rotate and elastically reset is correspondingly installed on the lock tongue mounting shaft 12. A notch for the upper part of the lock tongue 3 to protrude is correspondingly provided at the top of the fixed housing 2. A motor mounting bracket 4 is correspondingly installed below the lock tongue 3 inside the fixed housing 2. An upper part of the motor mounting bracket 4 is correspondingly provided with a motor mounting groove 407, and a motor 5 is correspondingly installed in the motor mounting groove 407. A rotatable rotating cap 6 is correspondingly installed on the motor 5. Arc-shaped conical surfaces 601 are correspondingly provided on both sides of the top end of the rotating cap 6. A bevel surface is correspondingly provided on one side of the lower part of the lock tongue 3 close to the rotating cap 6. When the top end of the rotating cap 6 correspondingly abuts against the bevel surface at the lower part of the lock tongue 3, the upper part of the lock tongue 3 protrudes outside the fixed housing 2 and cannot rotate, maintaining the locked state; when the rotating cap 6 rotates to a position where its top end does not abut against the bevel surface at the lower part of the lock tongue 3, the lock tongue 3 can rotate so that the upper part of the lock tongue 3 completely retracts into the fixed housing 2, releasing the locked state. An anti-rotation assembly is correspondingly provided on the rotating cap 6 to prevent the rotating cap 6 from rotating when an external force pushes the lock tongue 3 in the locked state.

[0025] Specifically, a first short shaft 301 is correspondingly provided on the front side of the lower part of the lock tongue 3, and a connecting column 201 is correspondingly provided at a corresponding position on one side inside the fixed housing 2. A tension spring 7 is correspondingly installed between the first short shaft 301 of the lock tongue 3 and the connecting column 201, and the elastic reset of the lock tongue 3 is realized through the tension spring 7. A second short shaft 302 is correspondingly provided on the rear side of the lower part of the lock tongue 3, and a microswitch 8 is also installed at a corresponding position inside the fixed housing 2. A control circuit board (not shown in the figure) is correspondingly installed at the lower part inside the fixed housing 2, and a controller is correspondingly installed on the control circuit board. The microswitch 8 and the motor 5 are both correspondingly electrically connected to the controller; after the lock tongue 3 elastically rotates and resets, the second short shaft 302 on the lock tongue 3 will trigger the microswitch 8, thereby controlling the driving motor 5 to work so that the rotating cap 6 rotates and abuts against the lower part of the lock tongue 3 again, restoring the locked state.

[0026] A cut surface is correspondingly provided on the output shaft 501 of the motor 5. A semi-circular jack 602 that mates with the output shaft 501 of the motor 5 is correspondingly provided on the rotary cap 6. The rotary 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 assembly includes a compression spring 13 and a plurality of anti-rotation protrusions 14. The compression spring 13 is correspondingly sleeved outside the output shaft 501 of the motor 5, and both ends of the compression spring 13 are respectively connected to the rotary cap 6 and the body of the motor 5. The plurality of anti-rotation protrusions 14 are correspondingly annularly distributed on the side surface of the rotary cap 6 close to the motor 5. When the motor 5 drives the rotary cap 6 to rotate until the top abuts against the bottom inclined surface of the lock tongue 3, that is, in the locked state, after the motor 5 is powered off, if an external force pushes the lock tongue 3, the lock tongue 3 abuts against the rotary cap 6 and makes it slide backward until the anti-rotation protrusion 14 abuts against the motor mounting bracket 4. When the external force continues to push the lock tongue 3, the lock tongue 3 will continue to apply a torsional and backward force to the rotary cap 6. At this time, since the anti-rotation protrusion 14 has abutted against the motor mounting bracket 4, the tendency of the rotary cap 6 to rotate will be stopped under the action of friction, so that the rotary cap 6 still abuts against the lower part of the lock tongue 3 and maintains the locked state. To further ensure its installation effect, a plurality of serrated strips can be annularly and spacedly provided on the side of the motor mounting bracket 4 in contact with the anti-rotation protrusion 14. When the rotary cap 6 slides backward, the anti-rotation protrusion 14 can correspondingly abut between adjacent serrated strips, so as to further ensure that the rotary cap 6 will not continue to rotate, ensure its security effect, and save power.

[0027] A mechanical emergency component for driving the motor mounting bracket 4 to move downward is correspondingly provided in the lower part of the fixed housing 2. When the motor 5 fails, the rotary cap 6 can be moved downward through the mechanical emergency component to disengage from the lock tongue 3, and the locked state is mechanically released. Specifically, a fixing plate 403 is correspondingly provided at the rear side of the bottom of the motor mounting bracket 4. The mechanical emergency component includes a key 15 and a blade group formed by a plurality of blades 9. The blade group is correspondingly mounted on the front side of the fixing plate 403 of the motor mounting bracket 4. Card slots 901 are correspondingly opened on both sides of the top of each blade 9 of the blade group. Bar-shaped blocks 401 are correspondingly provided on both sides of the bottom of the motor mounting bracket 4. The blade group can slide horizontally and elastically and reset. The motor mounting bracket 4 can slide vertically and elastically and reset. In the natural state, the bar-shaped blocks 401 on both sides of the bottom of the motor mounting bracket 4 are misaligned with the card slots 901 on both sides of the top of the blade group. A key hole for inserting the key 15 is correspondingly provided on the lock cover 1. When the key 15 is correspondingly inserted into the lock cover 1 and rotated, it will drive the blade group to move horizontally, so that the bar-shaped blocks 401 on both sides of the bottom of the motor mounting bracket 4 correspond to the card slots 901 on both sides of the top of the blade group. Continuing to rotate the key 15 will cause the bar-shaped blocks 401 to be correspondingly clamped into the card slots 901, and the whole motor mounting bracket 4 will move downward, so that the rotary cap 6 moves downward to disengage from the lock tongue 3, and the locked state is mechanically released.

[0028] A first opening 405 is correspondingly provided in the middle of the fixed plate 403, and an arc groove 406 at a right angle is correspondingly provided on one side of the top of the first opening 405; second openings 903 are correspondingly provided in the middle of each of the blades 9, and grooves 904 are correspondingly provided on the tops of the second openings 903; the head of the key 15 matches the groove 904 on the second opening 903 of the blade group and the arc groove 406 on the first opening 405 of the fixed plate 403. The head of the key 15 is correspondingly inserted into the lock cover 1 and is inserted and matched with the groove 904 of the second opening 903. When the key 15 is rotated, the head of the key 15 will abut against the groove 904 to make the blade group move horizontally, so that the strip-shaped clamping block 401 and the clamping groove 901 are vertically corresponding. When the key 15 is continuously rotated, the head of the key 15 will abut against the bottom of the arc groove 406 to make the motor mounting bracket 4 move downward, so that the rotating cap 6 moves downward to disengage from the lock tongue 3, and the mechanical locking state is released.

[0029] Elastic sheet mounting shafts 205 and torsion spring mounting shafts 206 are respectively provided at corresponding positions on both sides inside the fixed shell 2. An elastic sheet 10 is correspondingly mounted on the elastic sheet mounting shaft 205. One end of the elastic sheet 10 correspondingly abuts against the inner wall of one side of the fixed shell 2, and the other end of the elastic sheet 10 correspondingly abuts against one side of the blade group. The blade group is elastically slid back horizontally through the elastic sheet 10. A torsion spring 11 is correspondingly mounted on the torsion spring mounting shaft 206. L-shaped limiting blocks 402 are correspondingly provided on both sides of the back of the motor mounting bracket 4. One end of the torsion spring 11 correspondingly abuts against the inner wall of the other side of the fixed shell 2, and the other end of the torsion spring 11 correspondingly abuts against the bottom of the L-shaped limiting block 402 of the motor mounting bracket 4. The motor mounting bracket 4 is elastically slid back vertically through the torsion spring 11. After the key 15 is released, the motor mounting bracket 4 will elastically slide back upward under the action of the torsion spring 11, so that the strip-shaped clamping blocks 401 on both sides of the bottom of the motor mounting bracket 4 disengage from the clamping grooves 901 on both sides of the top of the blade group. At this time, the blade group will elastically slide back horizontally under the action of the elastic sheet 10, so that the strip-shaped clamping blocks 401 on both sides of the bottom of the motor mounting bracket 4 and the clamping grooves 901 on both sides of the top of the blade group are arranged in a dislocation manner, realizing complete reset and facilitating the next work use.

[0030] U-shaped grooves 902 are correspondingly provided on both the left and right sides of each blade 9 of the blade group. Limiting columns 202 that are horizontally slidably inserted and matched with the U-shaped grooves 902 are correspondingly provided on both sides inside the fixed shell 2, so as to limit the horizontal sliding of the blade group. A limiting guide rail 203 is correspondingly provided in the middle of the lower side inside the fixed shell 2. Limiting protrusions 404 are correspondingly provided on both sides of the bottom of the fixed plate 403 of the motor mounting bracket 4. The motor mounting bracket 4 is vertically slidably mounted on the limiting guide rail 203 through the two limiting protrusions 404, so as to limit the vertical sliding of the motor mounting bracket 4.

[0031] A positioning insertion rod 204 is provided at a corresponding position on the limiting guide rail 203 in the fixed housing 2. The positioning insertion rod 204 correspondingly passes through the middle of the first opening 405 and the second opening 903 and corresponds to the position of the keyhole on the lock cover 1. A positioning insertion hole 1501 for plugging and cooperating with the positioning insertion rod 204 is correspondingly provided at the head of the key 15 so that the key 15 can be accurately inserted. Corresponding abutting blocks 208 are correspondingly extended on the two side walls in the fixed housing 2. Abutting rods 209 are also provided at corresponding positions in the fixed housing 2. When the motor mounting bracket 4 moves upward until the top of the rotating cap 6 abuts against the lower part of the lock tongue 3, the two sides of the upper part of the motor mounting bracket 4 can correspondingly abut against the bottoms of the abutting blocks 208 on the two sides in the fixed housing 2, and the top of the motor mounting bracket 4 correspondingly abuts against the bottom of the abutting rod 209. Limiting short shafts 207 are also provided at corresponding positions on the two sides in the fixed housing 2. The two L-shaped limiting blocks 402 on the back of the motor mounting bracket 4 are correspondingly and vertically slidably clamped between the two limiting short shafts 207. Through the optimized design of the specific structures and installations of the motor mounting bracket 4 and the fixed housing 2, the installation and movement of the motor mounting bracket 4 are made more stable and reliable.

[0032] The above embodiments only express a certain implementation manner of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention; therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An energy-saving locking mechanism, characterized in that: The invention comprises a lock cover (1) and a fixed shell (2), wherein the fixed shell (2) is correspondingly mounted on the lock cover (1); a lock tongue mounting shaft (12) is correspondingly provided on the upper part of the fixed shell (2), and an arc-shaped lock tongue (3) which can rotate and elastically reset is correspondingly mounted on the lock tongue mounting shaft (12); a notch for the upper part of the lock tongue (3) to extend out is correspondingly provided on the top of the fixed shell (2); a motor mounting frame (4) is correspondingly mounted below the lock tongue (3) in the fixed shell (2), and a motor (5) is correspondingly mounted on the motor mounting frame (4), and the motor (5) ) is correspondingly mounted with a rotating cap (6) that is driven to rotate; when the top end of the rotating cap (6) is correspondingly abutted against the lower part of the lock tongue (3), the upper part of the lock tongue (3) extends out of the fixed shell (2) and cannot rotate, thereby maintaining a locked state; when the rotating cap (6) is rotated until the top end does not abut against the lower part of the lock tongue (3), the lock tongue (3) can be rotated so that the upper part of the lock tongue (3) is completely retracted into the fixed shell (2), thereby releasing the locked state; and an anti-rotation component is correspondingly provided on the rotating cap (6) to prevent the lock tongue (3) from being pushed by an external force in the locked state so as to cause the rotating cap (6) to rotate.

2. An energy-saving locking mechanism according to claim 1, characterized in that: A first short axis (301) is correspondingly provided at the front side of the lower part of the lock tongue (3), a connecting column (201) is provided at a corresponding position on one side of the fixed shell (2), and a tension spring (7) is correspondingly installed between the first short axis (301) of the lock tongue (3) and the connecting column (201), and elastic reset of the lock tongue (3) is achieved by the tension spring (7).

3. An energy-saving locking mechanism according to claim 2, characterized in that: A second short shaft (302) is correspondingly provided on the rear side of the lower part of the lock tongue (3), and a micro switch (8) is also installed at a corresponding position in the fixed shell (2); a controller is correspondingly installed in the lower part of the fixed shell (2), and the micro switch (8) and the motor (5) are both electrically connected to the controller; after the lock tongue (3) is elastically rotated and reset, the second short shaft (302) on the lock tongue (3) will trigger the micro switch (8), thereby controlling the drive motor (5) to work so that the rotating cap (6) rotates and contacts the lower part of the lock tongue (3) again, thereby restoring the locked 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 section, and the rotating cap (6) is provided with a semicircular socket (602) matching 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 comprises a compression spring (13) and a plurality of anti-rotation protrusions (14), and the compression spring (13) is correspondingly sleeved on the output shaft (501) of the motor (5). 1) outside, and the two ends of the compression spring (13) are respectively connected to the rotating cap (6) and the motor (5) body, and the plurality of anti-rotation protrusions (14) are correspondingly arranged in an annular shape on a side surface of the rotating cap (6) close to the motor (5); when an external force pushes the lock tongue (3) in a locked state, the lock tongue (3) abuts against the rotating cap (6) to make it retreat and slide until the anti-rotation protrusion (14) abuts against the motor mounting frame (4), thereby stopping the rotating cap (6) from rotating so that it still abuts against the lower part of the lock tongue (3) to maintain the locked state.

5. An energy-saving locking mechanism according to any one of claims 1 to 4, characterized in that: A mechanical emergency assembly capable of driving the motor mounting frame (4) to move downward is correspondingly provided in the lower portion of the fixed shell (2); when the motor (5) fails, the mechanical emergency assembly can be used to move the rotating cap (6) downward to disengage from the locking tongue (3), thereby mechanically releasing the locked state.

6. An energy-saving locking mechanism according to claim 5, characterized in that: A fixing plate (403) is provided on the rear side of the bottom of the motor mounting frame (4); the mechanical emergency assembly comprises a key (15) and a blade group formed by a plurality of blades (9); the blade group is installed on the front side of the fixing plate (403) of the motor mounting frame (4); two sides of the top of each blade (9) of the blade group are provided with corresponding card slots (901); two sides of the bottom of the motor mounting frame (4) are provided with corresponding bar blocks (401); the blade group can be elastically slid and reset in the horizontal direction; the motor mounting frame (4) can be elastically slid and reset in the vertical direction; in a natural state, the bars on the two sides of the bottom of the motor mounting frame (4) are The strip-shaped card blocks (401) are staggered with the card slots (901) on both sides of the top of the blade group; the lock cover (1) is correspondingly provided with a key hole for inserting the key (15); the key (15) is correspondingly inserted into the lock cover (1) and rotated, which drives the blade group to move horizontally, so that the strip-shaped card blocks (401) on both sides of the bottom of the motor mounting frame (4) correspond to the card slots (901) on both sides of the top of the blade group; the key (15) is further rotated, so that the strip-shaped card blocks (401) are correspondingly inserted into the card slots (901), and the motor mounting frame (4) moves downward as a whole, so that the rotating cap (6) moves downward and separates from the lock tongue (3), and the mechanical locking state is released.

7. An energy-saving locking mechanism according to claim 6, characterized in that: A first opening (405) is correspondingly provided in the middle of the fixing plate (403), and an arc groove (406) is correspondingly provided on one side of the top of the first opening (405); a second opening (903) is correspondingly provided in the middle of each blade (9), and a groove (904) is correspondingly provided 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); The head of the key (15) is inserted into the lock cover (1) so as to be plugged into the groove (904) of the second opening (903). The key (15) is turned so that the head of the key (15) presses against the groove (904) to move the blade assembly horizontally, so that the bar-shaped card block (401) and the card groove (901) correspond vertically. The key (15) is further turned so that the head of the key (15) presses against the bottom of the arc groove (406) to move the motor mounting frame (4) downward, so that the rotating cap (6) moves downward and is separated from the lock tongue (3).

8. The energy-saving locking mechanism according to claim 6, characterized in that: A spring installation shaft (205) and a torsion spring installation shaft (206) are respectively provided at corresponding positions on both sides of the fixed shell (2); a spring (10) is correspondingly installed on the spring installation shaft (205); one end of the spring (10) is correspondingly abutted against the inner wall of one side of the fixed shell (2); the other end of the spring (10) is correspondingly abutted against one side of the blade group; the spring (10) enables the blade group to slide and reset in a transverse elastic manner; a torsion spring (11) is correspondingly installed on the torsion spring installation shaft (206); L-shaped limit blocks (402) are correspondingly provided on both sides of the back of the motor mounting frame (4); one end of the torsion spring (11) is correspondingly abutted against the inner wall of the other side of the fixed shell (2); the other end of the torsion spring (11) is correspondingly abutted against the bottom of the L-shaped limit block (402) of the motor mounting frame (4); the torsion spring (11) enables the motor mounting frame (4) to slide and reset in a vertical elastic manner.

9. The energy-saving locking mechanism according to claim 6, characterized in that: Each blade (9) of the blade assembly is provided with a U-shaped groove (902) on both sides thereof, and the fixed shell (2) is provided with a limit column (202) on both sides thereof to be laterally slidably plugged and matched with the U-shaped groove (902); a limit guide rail (203) is provided on the middle part of the lower side of the fixed shell (2), and limit protrusions (404) are provided on both sides of the bottom of the fixed plate (403) of the motor mounting frame (4), and the motor mounting frame (4) is vertically slidably mounted on the limit guide rail (203) via the two limit protrusions (404). A positioning rod (204) is provided at a corresponding position on the limiting guide rail (203) in the fixed shell (2), and a positioning hole (1501) is provided on the head of the key (15) to be plugged into and matched with the positioning rod (204); abutment blocks (208) are provided on the side walls on both sides of the fixed shell (2) to extend correspondingly, and when the motor mounting frame (4) moves up to the top of the rotating cap (6) to abut the lower part of the lock tongue (3), the upper sides of the motor mounting frame (4) can abut against the bottom of the abutment blocks (208) on both sides of the fixed shell (2).

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