Narrow electronic induction cabinet lock

Abstract

The utility model provides a narrow electronic induction cabinet lock which comprises a lock shell, a spring bolt assembly, a power mechanism and a circuit board. The lock shell comprises a surface cover, an inner shell and a bottom cover which are buckled in sequence, and a top cover which hoops the lock shell at the top; the spring bolt assembly comprises a spring bolt, one end of the spring bolt is a guide inclined face, the other end of the spring bolt is provided with a spring bolt shaft, the spring bolt shaft is sequentially sleeved with a first spring, a rack and a second spring, and the tail end of the spring bolt shaft is buckled with a clamping spring. The power mechanism comprises a motor and a gear set, the motor is in transmission connection with the rack through the gear set, the spring bolt assembly, the power mechanism and the circuit board are arranged in a space formed by buckling the back cover and the inner shell, the spring bolt assembly can stretch out of the lock shell, and the circuit board is attached to the back shell; and when the spring bolt assembly moves in place in the lock shell, the rack is separated from the gear set. The rotation time of the power mechanism of the narrow body induction electronic lock does not need to be strictly controlled, and locking and unlocking can be controlled through simple positive and negative rotation of the motor; and the circuit board is attached to the back cover, so that the signal induction distance with the outside is shortened to the limit.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic locks, in particular to a narrow-body electronic induction cabinet lock. Background Art

[0002] Induction electronic cabinet locks are commonly used in lockers and storage drawers in gyms, saunas and other scenes. Traditional electronic induction cabinet locks consist of two independent lock bodies and sensors, which are installed on the inside and outside of the cabinet door respectively. Holes are punched on the cabinet door and connected by wires. The installation method is very troublesome and unsightly.

[0003] At the same time, the lock bodies are almost all designed to be square, which takes up a large space and cannot be installed on some shallow drawers, limiting the application scenarios. In addition, traditional lock bodies are assembled by snapping together the upper and lower shells. When subjected to external pulling force, they are easily damaged, resulting in poor security effects. Utility Model Content

[0004] The purpose of the utility model is to provide a narrow-body electronic induction cabinet lock: adopting an integrated design, the induction circuit is built into the lock shell, and a top cover structure is added to enhance the overall structural strength. The problem of limited installation scenarios, complex installation, and low structural strength is solved.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A narrow-body electronic induction cabinet lock is provided, comprising:

[0007] The lock case comprises a top cover, a face cover, a back cover and an inner shell, all of which are rectangular. The inner walls of the two short sides of the back cover are symmetrically provided with back cover side buckles. The inner side of the bottom of the back cover is provided with a plurality of back cover bottom buckles. The back cover side buckles and the back cover bottom buckles are respectively buckled into the side walls of the inner shell, so that the back cover and the inner shell are assembled. The top cover is buckled on the top of the lock case to clamp the back cover and the inner shell.

[0008] Optionally, the two short side outer walls of the inner shell are symmetrically provided with cover slots, and the two short side inner walls of the cover are symmetrically provided with cover buckles, and the cover buckles are buckled with the cover slots, so that the cover is assembled on the lock shell;

[0009] Optionally, a locking tongue guide groove is further provided inside the back cover, and the locking tongue guide groove is perpendicular to the top cover;

[0010] Optionally, a lock bolt hole is provided in the middle of the top cover, and notches are provided on the back cover and the inner shell at positions corresponding to the lock bolt hole;

[0011] Optionally, a battery compartment is provided on the surface of the inner shell, a battery is installed in the battery compartment, and the battery is parallel to the long side of the inner shell;

[0012] The narrow-body electronic induction cabinet lock further comprises:

[0013] A lock tongue assembly, which is arranged in a space formed by the buckling of the back cover and the inner shell, and comprises: a lock tongue, one end of which is a guide slope, and the other end is provided with a cylindrical lock tongue shaft, a spring 1, a rack, and a spring 2 are sleeved on the lock tongue shaft in sequence, a retaining spring is buckled on the end of the lock tongue shaft, a round hole sleeved on the lock tongue shaft is opened on one side of the rack, and a plurality of teeth are arranged on the other side, the teeth of the rack are arranged in a direction parallel to the axial direction of the lock tongue shaft, the lock tongue assembly is parallel to the lock tongue guide groove and is slidably connected, and the lock tongue can extend from the lock tongue hole;

[0014] A power mechanism, the power mechanism is arranged inside the space formed by the back cover and the inner shell being buckled together, the power mechanism includes a motor and a gear set, a worm is sleeved on the output shaft of the motor, the worm is meshed with the gear set, and the other end of the gear set is meshed with the rack, and when the lock tongue assembly slides into place inside the lock shell, the rack can be disengaged from the gear set;

[0015] A circuit board, the circuit board is arranged inside the lock shell and is attached to the back cover, the circuit board includes a battery spring group, a positive and negative electrode connecting piece and a buzzer, the battery spring group is directly welded on the circuit board and arranged on one side of the battery compartment, and the positive and negative electrode connecting piece is arranged on the other side of the battery compartment;

[0016] Optionally, the top of the inner shell is further provided with an inner shell top buckle, and the top of the surface cover is further provided with a surface cover top buckle, and the inner shell top buckle and the surface cover top buckle are both buckled into the inner wall of the top cover;

[0017] Optionally, the two short side outer walls of the inner shell are symmetrically provided with guide grooves, and the two short side inner walls of the surface cover are symmetrically provided with surface cover guide rails, and the surface cover guide rails are embedded in the guide grooves;

[0018] Optionally, the inner shell surface is further provided with two countersunk columns, the countersunk columns are arranged on both sides of the lock tongue assembly, the back cover is correspondingly provided with two assembly holes, the countersunk columns are embedded in the assembly holes and exposed on the back cover surface;

[0019] Optionally, the inner walls of the two short sides of the face cover are symmetrically provided with inner hand buckle grooves, and the outer walls of the two short sides of the back cover are symmetrically provided with outer hand buckle grooves, and the positions of the inner hand buckle grooves and the outer hand buckle grooves correspond to each other;

[0020] Optionally, the gear set is a reduction gear set consisting of two mutually meshing double-layer spur gears;

[0021] Optionally, the buzzer and the motor are both electrically connected to the circuit board via wires;

[0022] Optionally, the buzzer is any one of an electromagnetic buzzer or a piezoelectric buzzer;

[0023] Optionally, the battery spring assembly includes an independent positive electrode spiral tower spring and an independent negative electrode spiral tower spring, and the positive and negative electrode connecting pieces are in the shape of two connected spiral tower springs;

[0024] Optionally, the motor is distributed in the lock housing at an acute angle to the axial direction of the lock tongue shaft.

[0025] Beneficial effects of the utility model:

[0026] After the front cover, inner shell and back cover of the narrow-body electronic induction cabinet lock are buckled in sequence, the top cover is again clamped around the lock shell at the top. When the lock tongue is extended and subjected to external tension, the top cover can effectively prevent the entire lock shell from disintegrating, thereby increasing the overall strength. The lock tongue assembly adopts a two-way clutch design, and the motor only needs to simply rotate forward and reverse to control the locking and unlocking effects, without the need to accurately control the motor rotation time, thereby reducing the control difficulty.

[0027] Furthermore, the lock housing adopts a narrow rectangular design, and the battery, power mechanism, etc. are arranged horizontally, which improves space utilization and reduces volume. In addition, the circuit board and the back cover are fitted together, which shortens the sensing distance between the circuit board and the outside world, thus adapting to more application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the narrow-body electronic induction cabinet lock described in the embodiment of the utility model. Figure 1 (front);

[0029] Figure 2 This is a schematic diagram of the structure of the narrow-body electronic induction cabinet lock described in the embodiment of the utility model. Figure 2 (back);

[0030] Figure 3 This is a schematic diagram of the structure of the narrow-body electronic induction cabinet lock described in the embodiment of the utility model. Figure 1 ;

[0031] Figure 4 This is a schematic diagram of the structure of the narrow-body electronic induction cabinet lock described in the embodiment of the utility model. Figure 2 ;

[0032] Figure 5It is a schematic diagram of the assembly of the bolt assembly, the power mechanism and the circuit board according to the embodiment of the utility model;

[0033] Figure 6 It is a schematic diagram of the structural relationship between the bolt assembly and the power mechanism in the locked state;

[0034] Figure 7 It is a schematic diagram of the structural relationship between the lock tongue assembly and the power mechanism in the unlocked state.

[0035] In the figure:

[0036] 1. Lock shell; 11. Top cover; 111. Lock bolt hole; 12. Surface cover; 121. Surface cover guide rail; 122. Surface cover buckle; 123. Surface cover top buckle; 124. Inner hand buckle slot; 13. Back cover; 131. Back cover side buckle; 132. Outer hand buckle slot; 133. Back cover bottom buckle; 134. Assembly hole; 135. Lock bolt guide slot; 14. Inner shell; 141. Guide slot; 142. Surface cover slot; 143. Inner shell top buckle; 144. Countersunk column; 145. Battery compartment; 146. Battery;

[0037] 2. Lock tongue assembly; 21. Lock tongue; 211. Lock tongue shaft; 22. Rack; 23. Spring 1; 24. Spring 2; 25. Circlip;

[0038] 3. Power mechanism; 31. Motor; 311. Worm; 32. Gear set;

[0039] 4. Circuit board; 41. Battery spring assembly; 42. Positive and negative electrode connection pieces; 43. Buzzer; DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the description of the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0045] like Figure 1-Figure 4 As shown, the utility model provides a narrow-body electronic induction cabinet lock, including a lock shell 1, a lock tongue assembly 2, a power mechanism 3 and a circuit board 4. Optionally, the lock shell 1 includes a top cover 11, a face cover 12, a back cover 13 and an inner shell 14, the inner walls of the two short sides of the back cover 13 are symmetrically provided with back cover side buckles 131, the inner side of the bottom of the back cover 13 is provided with a plurality of back cover bottom buckles 133, the back cover side buckles 131 and the back cover bottom buckles 133 are respectively buckled into the side walls of the inner shell 14, so that the back cover 13 and the inner shell 14 are assembled, the top cover 11 is buckled on the top of the lock shell 1, and the back cover 13 and the inner shell 14 are clamped, and at the same time, the inner shell 14 is also provided with an inner shell top buckle 143 on the top, and the inner shell top buckle 143 is buckled into the inner wall of the top cover 11 to prevent the top cover 11 from falling off. Optionally, a bolt hole 111 is further provided in the middle of the top cover 11, and notches are provided at positions corresponding to the bolt hole 111 on the back cover 13 and the inner shell 14, and the bolt assembly 2 is built into the lock shell 1, and when the lock is engaged, the bolt assembly 2 will extend from the bolt hole 111, and when the bolt assembly 2 receives a lateral external force, the top cover 11 plays a supporting role, effectively preventing the entire lock shell 1 from disintegrating, thereby increasing the structural strength;

[0046] like Figure 3 and Figure 4As shown, the two short side outer walls of the inner shell 14 are symmetrically provided with face cover slots 142, and the two short side inner walls of the face cover 12 are symmetrically provided with face cover buckles 122, and the face cover buckles 122 are buckled with the face cover slots 142. At the same time, a face cover top buckle 123 is also provided on the top of the face cover 12, and the inner shell top buckle 123 is buckled into the inner wall of the top cover 11, so that the face cover 12 is assembled on the lock shell 1; optionally, the two short side inner walls of the face cover 12 are symmetrically provided with inner hand buckle grooves 124, and the two short side outer walls of the back cover 13 are symmetrically provided with outer hand buckle grooves 132, and fingers or other tools can penetrate through the outer hand buckle grooves 132, press against the inner hand buckle grooves 124, and apply force outward to make the face cover buckle 122 disengage from the face cover slots 142, continue to pull the face cover 12 outward, and then make the face cover top buckle 123 disengage from the top cover 11, and the face cover 12 can be easily disassembled.

[0047] Optionally, the two short side outer walls of the inner shell 14 are symmetrically provided with guide grooves 141, and the two short side inner walls of the cover 12 are symmetrically provided with cover guide rails 121. When the cover 12 is installed, the cover guide rails 121 will first be embedded in the guide grooves 141 to play a guiding role, prevent the buckle position from being misaligned, and make installation easier;

[0048] like Figure 3 and Figure 4 As shown, a battery compartment 145 is provided on the surface of the inner shell 14, and a battery 146 is installed in the battery compartment 145, and the battery 146 is parallel to the long side of the inner shell 14, so as to minimize the width of the electronic induction cabinet lock. Optionally, a circuit board 4 is arranged inside the lock shell 1, and the circuit board 4 includes a battery spring group 41, a positive and negative electrode connecting piece 42 and a buzzer 43. The battery spring group 41 is directly welded on the circuit board 4, and is arranged on the inner side of the battery compartment 145 together with the positive and negative electrode connecting piece 42.

[0049] like Figure 5 As shown, the buzzer 43 is electrically connected to the circuit board 4 through a wire. The buzzer 43 is any one of an electromagnetic buzzer or a piezoelectric buzzer. The circuit board 4 is arranged inside the lock shell 1 and fits with the back cover 13. This shortens the sensing distance between the circuit board 4 and the outside world to the extreme, thereby adapting to more application scenarios.

[0050] The lock tongue assembly 2 and the power mechanism 3 are also arranged inside the space formed by the back cover 13 and the inner shell 14. Figure 5-Figure 7 As shown, the bolt assembly 2 includes a bolt 21, one end of the bolt 21 is a guide slope, and the other end is provided with a cylindrical bolt shaft 211, and the bolt shaft 211 is sleeved with a spring 1 23, a rack 22, and a spring 24 in sequence, and a retaining spring 25 is buckled at the end of the bolt shaft 211, and the teeth of the rack 22 are arranged in a direction parallel to the axial direction of the bolt shaft 211. Optionally, as Figure 4As shown, a lock tongue guide groove 135 is also provided inside the back cover 13, and the lock tongue assembly 2 is parallel to and slidably connected to the lock tongue guide groove 135, and the lock tongue 21 can extend from the lock tongue hole 111; Figure 6 As shown, the power mechanism 3 includes a motor 31 and a gear set 32. A worm 311 is sleeved on the output shaft of the motor 31. The worm 311 is meshed with the gear set 32. The gear set 32 ​​is a reduction gear set composed of two double-layer spur gears meshing with each other. The other end of the gear set 32 ​​is meshed with the rack 22.

[0051] In the locked state, the motor 31 is started, and the gear set 32 ​​is decelerated to drive the rack 22 to move. Figure 6 As shown, the rack 22 drives the lock tongue assembly 2 to move through the spring 123. After the lock tongue 21 extends out of the lock tongue hole 111 and is in place, the lock tongue 21 abuts against the inner wall of the top cover 11, and the lock tongue 21 stops moving. At this time, the rack 22 and the gear set 32 ​​are still in a meshing state. The rack 22 continues to move and compresses the spring 123 until the rack 22 and the gear set 32 ​​are disengaged. At this time, the motor 31 can continue to idle infinitely. Due to the elastic force of the spring 123, the rack 22 and the gear set 32 ​​are still tightly abutted at the critical position, and the power mechanism 3 and the lock tongue assembly 2 produce a clutch effect.

[0052] In the unlocked state, similarly, Figure 7 As shown, the motor 31 rotates in the opposite direction, the gear set 32 ​​meshes with the rack 22 again, and the spring 1 23 returns to its natural state. At this time, the rack 22 drives the lock tongue assembly 2 to move toward the inside of the lock housing 1 through the spring 24. When the lock tongue 21 is fully retracted, the lock tongue 21 abuts against the lock tongue guide groove 135, and the lock tongue 21 stops moving. At this time, the rack 22 and the gear set 32 ​​are still in a meshing state, and the rack 22 continues to move and compresses the spring 24 until the rack 22 is disengaged from the gear set 32. At this time, the motor 31 can continue to idle infinitely. Due to the elastic force of the spring 24, the rack 22 and the gear set 32 ​​are still tightly abutted at the critical position. Therefore, when the motor 31 changes the rotation direction again, the rack 22 and the gear set 32 ​​will mesh again.

[0053] The bolt assembly 2 and the power mechanism 3 together form a two-way clutch mechanism. The motor 31 only needs to rotate forward and reverse to control the locking and unlocking effects. There is no need to accurately control the motor rotation time, nor does it require a complex limit switch. After the bolt assembly 2 moves into place, the motor 31 can continue to idle without being blocked, which not only reduces the control difficulty but also increases the service life.

[0054] like Figure 2 and Figure 4As shown, the surface of the inner shell 14 is further provided with two countersunk columns 144, which are arranged on both sides of the lock tongue assembly 2, and the back cover 13 is correspondingly provided with two assembly holes 134, the countersunk columns 144 are embedded in the assembly holes 134, and are exposed on the surface of the back cover 13, so that the countersunk columns 144 and the back cover 13 do not form abutment. When the lock shell 1 is installed and tightened by fasteners, the back cover 13 will not be subjected to pressure, and the back cover 13 is not easily deformed, thereby preventing malfunctions.

[0055] Preferably, the motor 31 and the lock tongue assembly 2 are distributed in the lock housing 1 at an acute angle, which is conducive to reducing the size of the lock housing 1, making the narrow-body electronic induction cabinet lock described in the embodiment of the utility model more refined in design, greatly improving the compatibility of usage scenarios.

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A narrow body electronic induction cabinet lock, characterized in that: include: A lock case (1), the lock case (1) comprising a top cover (11), a face cover (12), a back cover (13) and an inner case (14), all of which are rectangular; the inner walls of the two short sides of the back cover (13) are symmetrically provided with back cover side buckles (131); the bottom of the back cover (13) is provided with a back cover bottom buckle (133); the back cover side buckle (131) and the back cover bottom buckle (133) are respectively buckled into the side walls of the inner case (14), so that the back cover (13) and the inner case (14) are assembled; the top cover (11) is buckled on the top of the lock case (1) to clamp the back cover (13) and the inner case (14).

2. The narrow-body electronic induction cabinet lock according to claim 1, characterized in that: The outer walls of the two short sides of the inner shell (14) are symmetrically provided with cover slots (142), and the inner walls of the two short sides of the cover are symmetrically provided with cover buckles (122), and the cover buckles (122) are buckled with the cover slots (142), so that the cover (12) is buckled on the lock shell (1); The top of the inner shell (14) is also provided with an inner shell top buckle (143), and the top of the surface cover (12) is also provided with a surface cover top buckle (123), and the inner shell top buckle (143) and the surface cover top buckle (123) are both buckled into the inner wall of the top cover (11).

3. The narrow-body electronic induction cabinet lock according to claim 1, characterized in that: Also includes: A lock tongue assembly (2) is arranged inside a space formed by the back cover (13) and the inner shell (14) being buckled together. A lock tongue guide groove (135) is also arranged inside the back cover (13). The lock tongue guide groove (135) is perpendicular to the top cover (11). A lock tongue hole (111) is also arranged in the middle of the top cover (11). The lock tongue assembly (2) is parallel to the lock tongue guide groove (135) and is slidably connected thereto.

4. The narrow-body electronic induction cabinet lock according to claim 3, characterized in that: The lock tongue assembly (2) further comprises: a lock tongue (21), wherein the lock tongue (21) can extend from the lock tongue hole (111), wherein one end of the lock tongue (21) is a guide inclined surface, and the other end is provided with a cylindrical lock tongue shaft (211), wherein the lock tongue shaft (211) is sleeved with a spring 1 (23), a rack (22), and a spring 2 (24) in sequence, and a retaining spring (25) is buckled at the end of the lock tongue shaft (211), wherein one side of the rack (22) is provided with a circular hole sleeved on the lock tongue shaft (211), and the other side is provided with a plurality of teeth, and the teeth of the rack (22) are arranged in a direction parallel to the axial direction of the lock tongue shaft (211).

5. The narrow-body electronic induction cabinet lock according to claim 1, characterized in that: Also includes: A power mechanism (3), the power mechanism (3) is arranged inside a space formed by the top cover (11), the back cover (13) and the inner shell (14), the power mechanism (3) comprises a motor (31) and a gear set (32), a worm (311) is sleeved on the output shaft of the motor (31), the gear set (32) is a reduction gear set composed of two mutually meshing double-layer spur gears, and the worm (311) is meshed with the gear set (32).

6. The narrow-body electronic induction cabinet lock according to claim 1, characterized in that: A battery compartment (145) is provided on the surface of the inner shell (14), and a battery (146) is installed in the battery compartment (145). The battery (146) is parallel to the long side of the inner shell (14).

7. The narrow-body electronic induction cabinet lock according to claim 1, characterized in that: Also includes: A circuit board (4), the circuit board (4) is arranged inside the lock shell (1) and is attached to the back cover (13), the circuit board (4) comprises a battery spring group (41), a positive and negative electrode connecting piece (42) and a buzzer (43), a battery compartment (145) is provided on the surface of the inner shell (14), the battery spring group (41) is directly welded to the circuit board (4), and is arranged on the inner side wall of the battery compartment (145) together with the positive and negative electrode connecting piece (42).

8. The narrow-body electronic induction cabinet lock according to claim 1, characterized in that: The two short side outer walls of the inner shell (14) are symmetrically provided with guide grooves (141); the two short side inner walls of the surface cover (12) are symmetrically provided with surface cover guide rails (121), and the surface cover guide rails (121) are embedded in the guide grooves (141); the two short side inner walls of the surface cover (12) are symmetrically provided with inner hand buckle grooves (124); the two short side outer walls of the back cover (13) are symmetrically provided with outer hand buckle grooves (132).

9. The narrow-body electronic induction cabinet lock according to claim 5, characterized in that: The axial direction of the output shaft of the motor (31) forms an acute angle with the inner surface of the top cover (11).

10. The narrow-body electronic induction cabinet lock according to claim 7, characterized in that: The buzzer (43) is any one of an electromagnetic buzzer and a piezoelectric buzzer, and the buzzer (43) is electrically connected to the circuit board (4) via a wire.

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