Multifunctional lock body

Abstract

The present invention relates to the technical field of locks, and discloses a multifunctional lock body, comprising a shell and a first transmission structure, a second transmission structure, a first lock tongue, a second lock tongue and an auxiliary tongue arranged in the shell; the shell is provided with a first opening for the first lock tongue and the second lock tongue to extend out of the shell, and a second opening for the auxiliary tongue to extend out of the shell; the first transmission structure is connected to the handle, and drives the first lock tongue to move through the first transmission structure; the second transmission structure is driven by a motor, and drives the second lock tongue to move through the second transmission structure; an induction switch and a prompt module are provided in the shell, and when the lock body is in a locked state, the auxiliary tongue triggers the induction switch and the prompt module issues a prompt; when in use, the lock is electrically unlocked through the second transmission structure, and then the lock is unlocked by manually operating the first transmission structure by the user, and the electric and manual unlocking are coordinated together, and multi-mode locking is achieved, which makes the lock body safer.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, in particular to a multifunctional lock body. Background Art

[0002] The lock body is one of the components of the lock. There are many kinds of lock bodies, the most common ones are one-way lock bodies, three-way lock bodies, four-way lock bodies, etc. They are generally used on doors and are responsible for basic anti-theft work indoors. The lock core controls the operation of the lock body, and the lock body is responsible for locking the door, playing an important role in anti-theft.

[0003] Existing lock bodies come in a variety of styles, but their core components are largely similar. Some locks are powered by motors, while others are mechanically driven. Furthermore, some locks are equipped with speed reduction devices to improve quietness, while others are equipped with sensors to enhance controllability. However, the functional and structural features of existing locks on the market are relatively simple, lacking a comprehensive functional and structural combination. Summary of the Invention

[0004] The purpose of the present invention is to provide a multifunctional lock body, aiming to solve the problem of single function of the lock body in the prior art.

[0005] The present invention is implemented as follows: a multifunctional lock body includes a shell and a first transmission structure, a second transmission structure, a first lock tongue, a second lock tongue and an auxiliary tongue arranged in the shell; the shell is provided with a first opening for the first lock tongue and the second lock tongue to extend out of the shell, and a second opening for the auxiliary tongue to extend out of the shell; the first transmission structure is connected to the handle, and the first lock tongue is driven to move through the first transmission structure; the second transmission structure is driven by a motor, and the second lock tongue is driven to move through the second transmission structure; an induction switch and a prompt module are provided in the shell, and when the lock body is in a locked state, the auxiliary tongue triggers the induction switch and the prompt module issues a prompt.

[0006] Furthermore, the first transmission structure includes a first rotating member and a second rotating member; the first rotating member is connected to the first lock tongue, the second rotating member has a plurality of latching positions, the first rotating member is provided with a clamping portion, and the clamping portion extends into the latching position; when the handle is driven, the second rotating member rotates and drives the first rotating member to rotate, thereby driving the first lock tongue to extend and retract.

[0007] Furthermore, the second rotating member includes an inner rotating member and an outer rotating member, and the inner rotating member and the outer rotating member are arranged separately; the handle includes an inner handle and an outer handle, the inner rotating member is connected to the inner handle, and the outer rotating member is connected to the outer handle; when the outer handle is rotated, the outer rotating member rotates.

[0008] Furthermore, the second transmission structure includes a third rotating part, the second lock tongue includes a lock tongue paddle, a card slot is provided on the lock tongue paddle, the notch of the card slot faces the third rotating part, and a card strip is provided on the third rotating part, the card strip extends toward the card slot and is embedded in the card slot; when the third rotating part rotates, the card strip drives the lock tongue paddle to move.

[0009] Furthermore, along the direction from the bottom of the slot to the slot opening, the side walls on both sides of the slot are respectively extended away from each other; a positioning portion is provided at one end of the side walls on both sides of the slot away from the bottom of the slot; when the card strip abuts against the positioning portion on the side close to the second opening, the first lock tongue is in an extended state; when the card strip abuts against the positioning portion on the side away from the second opening, the first lock tongue is in a retracted state.

[0010] Furthermore, a linkage part is connected to the second lock tongue, the end of the linkage part extends to the locking position on the second rotating part, and the linkage part is docked with the inner rotating part; when the inner handle is rotated, the inner rotating part rotates, and the inner rotating part drives the linkage part and the second lock tongue to move.

[0011] Furthermore, a plurality of guide plates are movably provided in the shell, and the plurality of guide plates are respectively arranged on both sides of the second lock tongue; a slide is provided on the guide plate, and a boss is provided on the lock tongue paddle, and the boss passes through the slide; along the direction from one end to the other end of the slide, the slide is toward the direction of the second opening and is obliquely extended toward the center direction of the second lock tongue; when the second lock tongue contracts, the guide plates located on both sides of the second lock tongue move toward the direction of the second lock tongue respectively.

[0012] Furthermore, one end of the slideway has a parallel section, which is arranged horizontally; when the protruding column moves to the parallel section, the first locking tongue is in a retracted state.

[0013] Furthermore, the second lock tongue includes a plurality of patches, and the plurality of patches are overlapped and arranged at one end of the lock tongue paddle close to the first opening.

[0014] Furthermore, the multifunctional lock body includes a safety tongue and a third transmission structure, and the safety tongue is connected to the third transmission structure; the safety tongue is extended and retracted by the user driving the third transmission structure.

[0015] Compared with the prior art, the multifunctional lock body provided by the present invention is electrically unlocked through the second transmission structure when in use, and then manually unlocked by the user through the first transmission structure. The electric and manual unlocking are coordinated together, and multi-form locking is achieved, which makes the lock body safer. When the lock body is locked, the auxiliary tongue will trigger the sensing switch, causing the prompt module to issue a prompt to remind the user that the lock body is in a locked state, helping the user to ensure that the lock body is in a locked state, and is safer and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view schematic diagram of a multifunctional lock body provided by an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the interior of a multifunctional lock body provided by an embodiment of the present invention;

[0018] Figure 3 The embodiment of the present invention provides Figure 2 An enlarged schematic diagram of point A in FIG.

[0019] Figure 4 This is a schematic diagram of the interior of a multifunctional lock body provided by an embodiment of the present invention;

[0020] Figure 5 is a perspective schematic diagram of a second lock tongue provided by an embodiment of the present invention;

[0021] Figure 6 is a perspective schematic diagram of a second lock tongue provided by an embodiment of the present invention;

[0022] Figure 7 is a three-dimensional schematic diagram of a metal block provided by an embodiment of the present invention;

[0023] Figure 8 is a three-dimensional schematic diagram of a gear transmission structure provided by an embodiment of the present invention;

[0024] Figure 9 is a three-dimensional schematic diagram of a second gear provided by an embodiment of the present invention;

[0025] Figure 10 It is a schematic diagram of the internal circuit of the multifunctional lock body provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The implementation of the present invention is described in detail below with reference to specific embodiments.

[0029] Reference Figure 1-10 As shown, a preferred embodiment of the present invention is provided.

[0030] The multifunctional lock body includes a shell 10 and a first transmission structure, a second transmission structure, a first lock tongue 13, a second lock tongue 15, an auxiliary tongue 14, a sensor switch 23, a prompt module 25 and a control board 24 arranged inside the shell 10. The control board 24 is electrically connected to the sensor switch 23 and the prompt module 25 respectively; the first transmission structure is correspondingly connected to the first lock tongue 13, and the second transmission structure is correspondingly connected to the second lock tongue 15. The first transmission structure is connected to the handle, and the user drives the first transmission structure to operate through the handle, thereby realizing the extension and retraction of the first lock tongue 13; the second transmission structure is driven by the motor 26, and the motor 26 is electrically connected to the control board 24. The user can be identified by password input, fingerprint or room card sensing, etc., and the control board 24 controls the motor 26 to drive, thereby realizing the operation of the second transmission structure and making the second lock tongue 15 extend and retract.

[0031] The multifunctional lock body provided above is electrically unlocked through the second transmission structure when in use, and then manually unlocked by the user through the first transmission structure. The electric and manual unlocking are coordinated together, and multi-form locking makes the lock body safer. When the lock body is locked, the auxiliary tongue 14 will trigger the sensing switch 23, causing the prompt module 25 to issue a prompt to remind the user that the lock body is in a locked state, helping the user to ensure that the lock body is in a locked state, and making it safer and more convenient to use.

[0032] The shell 10 is provided with a plurality of first openings 11 and a second opening 12, and the plurality of first openings 11 are respectively used for the first lock tongue 13 and the second lock tongue 15 to extend out of the shell 10, and one end of the auxiliary tongue 14 extends to the outside of the shell 10 through the second opening 12, and the other end extends toward the direction of the sensing switch 23. When the lock body is in a locked state, the auxiliary tongue 14 is not provided with a corresponding hole on the door frame, so the auxiliary tongue 14 is supported by the door frame and extends toward the shell 10. A plurality of positioning columns are provided in the shell 10, and the plurality of positioning columns are arranged to form a moving channel for the other end of the auxiliary tongue 14 to move. The end of the moving channel extends toward the direction of the sensing opening to position the moving track of the auxiliary tongue 14 to ensure that when the lock body is in a locked state, the other end of the auxiliary tongue 14 smoothly contacts the sensing switch 23. When the sensing switch 23 is triggered, the prompt module 25 issues a prompt to remind the user that the lock body is now in a locked state.

[0033] Furthermore, the first transmission structure includes a first rotating member 17 and a second rotating member 18, the first rotating member 17 is connected to the first lock tongue 13, and the first rotating member 17 is provided with a clamping portion 171, the second rotating member 18 includes an inner rotating member 182 and an outer rotating member 183, the inner rotating member 182 and the outer rotating member 183 are coaxially arranged opposite to each other, and the inner rotating member 182 and the outer rotating member 183 are separated, that is, when the inner rotating member 182 rotates, the outer rotating member 183 does not rotate; the handle includes an inner handle 20 and an outer handle 21, the inner rotating member 182 is connected to the inner handle 20, and the outer rotating member 183 is connected to the outer handle 21; when the user is outdoors, first use a fingerprint or password or door card to first drive the second transmission structure to rotate, so that the second lock tongue 15 retracts and disengages from the lock hole on the door frame, and then manually drive the outer handle 21 to rotate the first transmission structure, so that the first lock tongue 13 retracts, and the door can be opened.

[0034] The first lock tongue 13 is a bidirectional tongue, including an oblique tongue 130 and an oblique tongue 131. The oblique tongue 130 and the oblique tongue 131 are arranged in the longitudinal direction, and the inclined surface of the oblique tongue 130 faces the side where the oblique tongue 131 is located, and the inclined surface of the oblique tongue 131 faces the side where the oblique tongue 130 is located. The setting of the bidirectional tongue provides higher security.

[0035] Furthermore, a linkage member 152 is connected to the second lock tongue 15, and the end of the linkage member 152 extends toward the direction of the first rotating member 17 and docks with the inner rotating member 182. When the user is indoors, he directly rotates the inner handle 20. At this time, the first rotating structure rotates, wherein the inner rotating member 182 moves against the end of the linkage member 152, so that the linkage member 152 drives the second lock tongue 15 and the second transmission structure to rotate, wherein the second transmission structure is connected to an emergency unlocking structure, which can be a keyhole or other unlocking structure unlocked by a key. When the user rotates the inner handle 20 indoors and cannot retract the second lock tongue 15, the emergency unlocking structure can be used to unlock.

[0036] The second rotating member 18 is provided with a plurality of protrusions 181, and a locking position 180 is formed between two adjacent protrusions 181. The locking portion 171 on the first rotating member 17 extends toward the second rotating member 18 and extends into the locking position 180. When the handle is turned to rotate the second rotating member 18, the second rotating member 18 drives the first rotating member 17 to rotate, and the rotation directions of the first rotating member 17 and the second rotating member 18 are opposite, that is, when the handle is turned counterclockwise, the second rotating member 18 rotates counterclockwise and the first rotating member 17 rotates clockwise.

[0037] A limiting portion is provided on the auxiliary tongue 14, and a limiting groove is provided on the first rotating member 17. The end of the limiting portion extends toward the direction of the first rotating member 17 and is embedded in the limiting groove. When the lock body is in a locked state, the auxiliary tongue 14 is in a compressed state. At this time, the limiting portion tightly presses the first rotating member 17. When someone pries the lock, they mainly use a tool to press the first lock tongue 13 toward the direction of the housing 10. At this time, the limiting portion presses against the first rotating member 17, which can effectively prevent the first rotating member 17 from rotating when the first lock tongue 13 is pressed inward, thereby improving the safety of the lock body.

[0038] A spring 170 is connected to the first rotating member 17. One end of the spring 170 is connected to the first rotating member 17, and the other end is fixed in the housing 10. When the handle is rotated to retract the first locking tongue 13, the spring 170 is in a stretched state. After the handle is released, the elastic force of the spring 170 can make the first rotating member 17 rotate back to its original position, and the first locking tongue 13 also extends to its original position.

[0039] The second transmission structure includes a third rotating member 19 and a gear assembly. The gear assembly is connected to the third rotating member 19 via a coaxial rod. When the user unlocks the door outdoors using a fingerprint, password, door card, or other unlocking methods, the motor 26 is driven. The motor 26 drives the coaxial rod to rotate, thereby driving the gear assembly and the third rotating member 19 to rotate, causing the second lock tongue 15 to retract.

[0040] The second lock tongue 15 includes a lock tongue paddle 150 and a plurality of square tongues, the plurality of square tongues being arranged at one end of the lock tongue paddle 150, and the other end of the lock tongue paddle 150 being movably arranged on the housing 10, and a slot 153 is provided on the lock tongue paddle 150, the notch of the slot 153 being arranged toward the third rotating member 19, and along the direction from the bottom of the slot 153 to the notch, both side walls 154 of the slot 153 are respectively extended in the direction away from the center of the slot 153, and the both side walls 154 are arc-shaped; a clamping strip 190 is provided on the third rotating member 19, and the clamping strip 190 extends toward the direction of the slot 153 and extends into the slot 153; a positioning portion 155 is formed at the end of the both side walls 154 of the slot 153, that is, the side away from the bottom of the slot 153, so that when the third rotating member 19 rotates, the clamping strip 19 When the door is opened, the motor 26 drives the third rotating member 19 to rotate in a direction away from the square tongue. At this time, the clamping strip 190 moves in a direction away from the square tongue, and the first lock tongue 13 also shrinks toward the inside of the housing 10. After the clamping strip 190 moves to the bottom of the slot 153, it continues to move until the clamping strip 190 abuts against the positioning portion 155 on the other side. At this time, the second lock tongue 15 is completely unlocked.

[0041] Furthermore, two guide plates 22 are movably provided in the housing 10, and a slide 221 is provided on the guide plate 22. A boss 156 is provided on the lock tongue pick 150. The boss 156 passes through the slide 221 to connect the guide plate 22 with the lock tongue pick 150. The two guide plates 22 are respectively located on the upper and lower sides of the first lock tongue 13. Along the direction from one end of the slide 221 to the other end, the slide 221 is toward the direction of the square tongue, and the two slides 221 are arranged to extend obliquely toward each other, and have a parallel section at one end of the slide 221. 220, the parallel section 220 is arranged horizontally; when the first lock tongue 13 is in a locked state, the boss 156 is located at the end position of the other end of the slide 221; in the process of unlocking the first lock tongue 13, the boss 156 slides along the direction of one end of the slide 221, and the two guide plates 22 move toward the center direction of the lock tongue paddle 150 respectively until the boss 156 slides into the parallel section 220, at which time the first lock tongue 13 is in a retracted state, that is, the first lock tongue 13 is in an unlocked state.

[0042] Positioning blocks are provided on both sides of the guide plate 22 to ensure that the guide plate 22 moves back and forth in the longitudinal direction, so that the first lock tongue 13 can be stably extended and retracted, avoiding the situation where the contraction lengths of the two sides of the first lock tongue 13 are different.

[0043] Furthermore, the multifunctional lock body includes a safety tongue 16 , which is driven to extend and retract by a third transmission structure 160 . The third transmission structure 160 is manually rotated by a user indoors to realize the opening and closing of the safety tongue 16 .

[0044] An anti-saw-off structure is provided on the lock tongue pick 150, and the second lock tongue 15 includes multiple patches 151; a mounting hole 3 is provided on the lock tongue pick 150 for installing the anti-saw-off structure, and the square saw-off structure includes a connecting shaft 275 and a metal block 27, and the two ends of the connecting shaft 275 are respectively fixed to the lock tongue pick 150, and the metal block 27 is movably sleeved on the connecting shaft 275. The metal block 27 is cylindrical and is made of steel and can roll relative to the connecting shaft 275 and the lock tongue pick 150; multiple patches 151 are respectively overlapped and arranged on both sides of the lock tongue pick 150, and multiple patches 151 are overlapped and riveted with the lock tongue pick 150, so that the lock tongue pick 150 and the anti-saw-off structure are clamped between the patches 151.

[0045] When someone uses a tool to saw off the lock tongue, when the saw reaches the position of the metal block 27, since the position of the metal block 27 is not fixed and can roll relative to the lock tongue pick 150 and the connecting shaft 275, when the tool saws to the metal block 27, the metal block 27 rolls, causing the sawed position to constantly change, thereby increasing the difficulty of sawing off, and the arrangement structure of multiple patches 151 is convenient for disassembly and replacement, and the thickness of the lock tongue can be changed by selecting the number of installed patches 151, so as to facilitate adaptation to lock slots of different sizes.

[0046] The two sides of the mounting hole extend away from each other to form an inner groove, and the anti-saw-off structure includes a connecting shaft 275, the two ends of the connecting shaft 275 are respectively embedded in the two inner grooves and connected to the lock tongue pick 150; the metal block 27 is sleeved on the connecting shaft 275, and the two ends of the connecting shaft 275 are respectively provided with a hoop 272, the diameter of the hoop 272 is slightly larger than the diameter of the connecting shaft 275, and a plurality of connecting strips 273 are connected to the hoop 272, and the plurality of connecting strips 273 are arranged at intervals, and the ends of the plurality of connecting strips 273 respectively extend the ends of the metal block 27 and are fixed to the metal block 27, connecting the metal block 27 and the connecting shaft 275, ensuring that the metal block 27 can roll smoothly, and the two ends of the metal block 27 are respectively extended to be long enough, that is, the tool cannot contact the two ends of the metal block 27, and cannot be sawed directly from the side of the metal block 27, ensuring that the tool will encounter the metal block 27 when sawing off the lock tongue.

[0047] The cross-sectional area of ​​the metal block 27 is larger than the cross-sectional area of ​​the lock tongue pick 150. The patch 151 in contact with the lock tongue pick 150 forms a docking patch 151. The docking patch 151 is recessed in the direction away from the metal block 27 to form a groove. The two sides of the metal block 27 extend to the grooves on both sides of the lock tongue pick 150 respectively. The diameter of the metal block 27 is appropriately increased to better prevent sawing.

[0048] The outer surface of the metal block 27 is provided with a plurality of blocks 270, and the plurality of blocks 270 are arranged at intervals on the outer surface of the metal block 27, and the adjacent two blocks 270 are arranged at intervals and staggered; and the outer surface of the block 270 is a polished arc surface, and the thickness of the block 270 gradually decreases along the direction from the middle of the block 270 to the outer periphery of the block 270; in this way, when an outsider uses a tool to saw the lock tongue to the position of the metal block 27, the polished surface of the block 270 surface can cause the tool to slip, and the thickness of the block 270 decreases from the middle of the block 270 to the outer periphery. The staggered arrangement of the blocks 270, coupled with the rotation of the metal block 27, can make it impossible for the sawing tool to stay in one place for sawing, and the sawing position keeps changing, thereby increasing the difficulty of sawing.

[0049] There are multiple cone-shaped protrusions 271 between adjacent blocks 270, and the height of the protrusions 271 is greater than the height of the outer periphery of the block 270. The multiple protrusions 271 are staggered and arranged between the blocks 270. When the tool slips due to the surface of the block 270 and slides between two blocks 270, the protrusions 271 located between the two blocks 270 can cause the tool to wear. Since the blocks 270 are staggered, the tool cannot stay between two of the blocks 270, and will continue to slide to the next protrusion 271. In this way, the tool can continue to wear while effectively reducing the damage to the protrusion 271 caused by the tool.

[0050] Furthermore, the interior of the metal block 27 is hollow, and the connecting shaft 275 can also rotate relative to the lock tongue pick 150. A roller 274 is provided on the connecting shaft 275. The roller 274 is located inside the metal block 27, and the roller 274 and the metal block 27 are separated. When the metal block 27 is cut, the roller 274 takes over and continues to roll, so that the tool cannot be fixed in a fixed position, thereby increasing the difficulty of sawing; and the surface of the roller 274 is also provided with a plurality of protrusions with an arc-shaped polished outer surface. The plurality of protrusions are staggered, so that the tool continues to slip during the sawing process, further increasing the difficulty of sawing; and a plurality of cone-shaped protrusions 271 are also provided between the protrusions to continue to wear the damaged tool.

[0051] In addition, the second transmission structure includes a gear transmission structure. The gear transmission structure has a good buffering effect on the gear transmission that limits the rotation angle. When the second lock tongue 15 is switched, it is necessary to move the third rotating member 19 through the gear transmission structure to control the rotation, so that the second lock tongue 15 moves. The gear transmission structure includes a first gear 281, a second gear 282, a driven gear 284 and a driving motor. The first gear 281 and the second gear 282 are coaxially connected through a connecting shaft 280, and the driven gear 284 is meshed with the second gear 282. The first gear 281 and the second gear 282 are separated and arranged, and an elastic structure is connected between the first gear 281 and the second gear 282. The first gear 281 and the second gear 282 are driven by the driving motor at the same time. 281 and the second gear 282 rotate, and the second gear 282 drives the driven gear 284 to rotate, and the driven gear 284 drives the third rotating member 19 to rotate. When the third rotating member 19 has no rotation space and the driven gear 284 stops rotating, the elastic structure includes a tension spring 289. Under the action of the tension spring 289, the second gear 282 moves in a direction away from the first gear 281 and separates from the driven gear 284 to prevent the gear transmission structure from getting stuck. When the motor stops driving, the second gear 282 rebounds to its original position under the action of the tension spring 289 and meshes with the driven gear 284, waiting for the next time the motor drives the first gear 281 and the second gear 282 to reverse. If used as a switch lock, this type of rotation method is safer.

[0052] When the driving motor drives the first gear 281 and the second gear 282 to rotate, the second gear 282 drives the driven gear 284 to rotate. When the driven gear 284 can no longer rotate, the second gear 282 is separated from the driven gear 284 by the elastic structure, thereby avoiding the transmission structure from getting stuck. The elastic structure plays a certain buffering and recovery role, reducing the wear between the second gear 282 and the driven gear 284. After the driving motor stops driving, the elastic force of the elastic structure pulls the second gear 282 back to its original position, so that the second gear 282 is meshed with the driven gear 284 again, which is convenient for preparing for the next rotation and has high safety.

[0053] Along the direction of one end of the connecting shaft 280, the second gear 282 and the first gear 281 are arranged in sequence; one end of the connecting shaft 280 forms an end head 286, and the first gear 281 has a connecting hole. The first gear 281 is sleeved on the connecting shaft 280 through the connecting hole, and the diameter of the end head 286 is larger than the diameter of the connecting hole, which fixes the position of the first gear 281. The other end of the connecting shaft 280 is connected to the drive motor.

[0054] The tension spring 289 is sleeved on the connecting shaft 280 and is located between the first gear 281 and the second gear 282. The two ends of the tension spring 289 are respectively connected to the first gear 281 and the second gear 282. When the second gear 282 is engaged with the driven gear 284, the tension spring 289 is in its original length state. When the driven gear 284 cannot rotate, the second gear 282 moves in a direction away from the first gear 281 and separates from the driven gear 284. At this time, the tension spring 289 is in a stretched state. When the motor stops rotating, under the action of the tension of the tension spring 289, the second gear 282 returns to its original position and engages with the driven gear 284.

[0055] Furthermore, the second gear 282 has a through hole, and the second gear 282 is connected to the connecting shaft 280 through the through hole 290. The second gear 282 has an elastic portion, and the elastic portion is arranged around the through hole 290 to form a plurality of elastic strips 291 are formed along the direction from the through hole 290 to the periphery. The plurality of elastic strips 291 are arranged at intervals, and each elastic strip 291 corresponds one-to-one to each tooth. A compression zone 292 is formed between two adjacent elastic strips 291. Along the direction from the through hole 290 to the periphery, the area of ​​the compression zone 292 gradually decreases; and the thickness of the compression zone 292 is less than the thickness of the elastic strip 291. When the driven gear 284 stops rotating, the elastic portion can help the second gear 282 to have a buffering effect, and then move in the direction away from the first gear 281 to separate from the driven gear 284.

[0056] Furthermore, a buffer gear 285 is provided on the connecting shaft 280, and the buffer gear 285 is located on the side of the second gear 282 away from the first gear 281; when the driven gear 284 stops rotating, the first gear 281 moves toward the buffer gear 285, compressing the buffer gear 285. When the driving motor stops driving, the second gear 282 returns to its original position under the tension of the buffer gear 285 and the tension spring 289.

[0057] A buffer gear 283 is provided on the side of the second gear 282 facing the first gear 281, and the teeth on the buffer gear 283 are elastic; the buffer gear 283 and the second gear 282 have the same number of teeth and module, and each tooth on the buffer gear 283 corresponds one-to-one to each tooth of the second gear 282. Since the rebounded second gear 282 can easily collide with the driven gear 284, the buffer gear 283 can effectively reduce the damage caused by the collision.

[0058] Furthermore, the sum of the thicknesses of the second gear 282 and the buffer gear 283 is greater than the thickness of the driven gear 284 , ensuring that the second gear 282 is smoothly meshed with the driven gear 284 when rebounded.

[0059] Furthermore, a boss 287 is provided on the side of the driven gear 284 facing the first gear 281, and the boss 287 extends in the direction of the first gear. A baffle 288 is provided on the boss 287, and the radius of the baffle 288 is greater than the distance from the tooth groove of the driven gear 284 to the center of the driven gear 284. If the elastic force applied to the second gear 282 is too large, resulting in excessive rebound, the baffle 288 will play a certain blocking role, and the distance between the baffle 288 and the driven gear 284 and the thickness of the driven gear 284 are less than or equal to the thickness of the second gear 282, thereby ensuring that the second gear 282 can smoothly mesh with the driven gear 284 after rebounding.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Multifunctional lock body, characterized in that, The invention comprises a housing and a first transmission structure, a second transmission structure, a first lock tongue, a second lock tongue and an auxiliary tongue arranged in the housing; the housing is provided with a first opening for each of the first lock tongue and the second lock tongue to extend out of the housing, and a second opening for the auxiliary tongue to extend out of the housing; the first transmission structure is connected to the handle, and drives the first lock tongue to move through the first transmission structure; the second transmission structure is driven by a motor, and drives the second lock tongue to move through the second transmission structure; an induction switch and a prompt module are provided in the housing; when the lock body is in the locked state, the auxiliary tongue triggers the induction switch, and the prompt module issues a prompt; The first transmission structure includes a first rotating member and a second rotating member; the first rotating member is connected to the first locking tongue, the second rotating member has a plurality of latching positions, and the first rotating member is provided with a clamping portion, and the clamping portion extends into the latching positions; when the handle is driven, the second rotating member rotates, and drives the first rotating member to rotate, thereby driving the first locking tongue to extend and retract; The auxiliary tongue is provided with a limiting portion, and the first rotating member is provided with a limiting groove. The end of the limiting portion extends toward the first rotating member and is embedded in the limiting groove. When the lock body is in the locked state, the auxiliary tongue is in a compressed state. The second transmission structure includes a third rotating member, the second lock tongue includes a lock tongue paddle, the lock tongue paddle is provided with a slot, the slot opening of the slot faces the third rotating member, the third rotating member is provided with a clamping strip, the clamping strip extends toward the slot and is embedded in the slot; when the third rotating member rotates, the clamping strip drives the lock tongue paddle to move; The second lock tongue includes a plurality of patches, and the plurality of patches are overlapped and arranged at an end of the lock tongue paddle close to the first opening; The multifunctional lock body includes a safety tongue and a third transmission structure, wherein the safety tongue is connected to the third transmission structure; the safety tongue is extended and retracted by the user driving the third transmission structure; The lock tongue pick is provided with an anti-saw-off structure, which includes a connecting shaft and a metal block. Both ends of the connecting shaft are respectively fixed to the lock tongue pick, and the metal block is movably sleeved on the connecting shaft. The metal block is cylindrical; multiple patches are respectively overlapped and arranged on both sides of the lock tongue pick, and the multiple patches are overlapped and riveted with the lock tongue pick, so that the lock tongue pick and the anti-saw-off structure are sandwiched between the patches; The outer surface of the metal block is provided with a plurality of blocks, which are arranged at intervals on the outer surface of the metal block, and adjacent blocks are arranged at intervals and staggered; the outer surface of the block is a polished arc surface, and the thickness of the block gradually decreases from the middle of the block to the outer periphery of the block; A plurality of cone-shaped protrusions are provided between adjacent blocks, and the height of the protrusions is greater than the height of the periphery of the blocks. The plurality of protrusions are staggered and arranged between the blocks.

2. The multifunctional lock body according to claim 1, characterized in that: The second rotating member includes an inner rotating member and an outer rotating member, and the inner rotating member and the outer rotating member are arranged separately; the handle includes an inner handle and an outer handle, the inner rotating member is connected to the inner handle, and the outer rotating member is connected to the outer handle; when the outer handle is rotated, the outer rotating member rotates.

3. The multifunctional lock body according to claim 1 or 2, characterized in that: Along the direction from the bottom of the slot to the slot opening, the side walls of the slot are respectively extended away from each other; a positioning portion is provided at one end of the side walls of the slot away from the bottom of the slot; when the clamping strip abuts against the positioning portion on the side close to the first opening, the first lock tongue is in an extended state; when the clamping strip abuts against the positioning portion on the side away from the first opening, the first lock tongue is in a retracted state.

4. The multifunctional lock body according to claim 2, characterized in that: A linkage piece is connected to the second lock tongue, an end of the linkage piece extends to the locking position on the second rotating piece, and the linkage piece is docked with the inner rotating piece; when the inner handle is rotated, the inner rotating piece rotates, and the inner rotating piece drives the linkage piece and the second lock tongue to move.

Images