An electronic lock body with stable transmission

Abstract

The invention discloses an electronic lock body with stable transmission, comprising a lock shell, wherein a lock core, a motor, a telescopic main board and a tilted tongue are installed in the lock shell, a lock tongue block is installed on the telescopic main board, the tilted tongue is connected to a tilted tongue transmission mechanism, a locking mechanism and a reduction combination gear for driving the telescopic main board and the tilted tongue transmission mechanism are installed in the lock shell, the reduction combination gear comprises a main shaft and a motor gear, a ring gear and a rotating gear installed on the main shaft, the ring rack is fixed by the locking mechanism, so that when the motor gear is driven by the motor, it can drive the reduction gear set installed on the rotating gear to make the rotating gear rotate smoothly, and the rotating gear thereby drives the telescopic main board and the tilted tongue transmission mechanism to make the tilted tongue and the lock tongue block shrink and unlock, the whole transmission process is stable and reliable, the strong collision generated at the moment of motor rotation is effectively reduced, no sound is made between the components, the force is evenly applied, and the mute effect is extremely excellent.

Description

Technical Field

[0001] The invention relates to an electronic door lock, in particular to an electronic lock body with stable transmission. Background Art

[0002] Existing electronic door locks are generally equipped with a motor and a transmission gear driven by the motor. The motor drives the lock tongue and the inclined tongue to extend and retract through the transmission gear to realize the automatic unlocking and locking function of the electronic door lock. However, when the motor is triggered, a large force will be generated to collide with the transmission gear, causing the transmission gear to move and deviate, making the lock tongue and the inclined tongue unable to extend and retract stably. In addition, when the motor rotates, the transmission gear will also make a loud noise, affecting the user experience of the door lock. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an electronic lock body with stable transmission.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] The invention discloses an electronic lock body with stable transmission, comprising a lock shell, wherein the lock shell is provided with a lock core, a motor, a telescopic main board and a tilted tongue, the telescopic main board is provided with a lock tongue block, the tilted tongue is connected with a tilted tongue transmission mechanism, a reduction gear combination for driving the telescopic main board and the tilted tongue transmission mechanism and a locking mechanism for locking the reduction gear combination are installed in the lock shell, the reduction gear combination comprises a main shaft installed on the lock shell and a motor gear, a ring gear and a rotating gear installed on the main shaft, the motor gear is driven by the motor, and a transmission gear penetrated by the main shaft is provided on the motor gear, a closed ring rack is provided on the inner wall of the ring gear, a mounting plate is provided on the side of the rotating gear, a reduction gear group is installed on the mounting plate, and the transmission gear, the reduction gear group and the ring rack are meshed in sequence.

[0006] The reduction gear set includes two or more unit gears surrounding the transmission gear, each unit gear is installed on the mounting plate through rivets, and each unit gear is respectively meshed with the transmission gear and the annular rack.

[0007] The reduction gear set has three unit gears, which are distributed at an angle of 120°.

[0008] The reduction gear set has four unit gears, which are distributed at an angle of 90°.

[0009] The reduction combination gear includes an annular pressing plate, on which mounting holes corresponding to the number and positions of the rivets are arranged, the annular pressing plate is located between the motor gear and the annular gear, and two sides of the annular rack are respectively in contact with the annular pressing plate and the mounting plate.

[0010] The telescopic main board is provided with a penetrating telescopic groove, the side wall of the telescopic groove is provided with a lock tongue rack meshing with the rotating gear, and the bottom of the telescopic main board is provided with a lock core notch to be moved by the paddle of the lock core.

[0011] The locking mechanism includes a lock plate and a first reset mechanism installed on the lock plate, the lock plate is provided with a lock plate recess for making way for accommodating the reduction combination gear, the side of the lock plate recess is provided with a fixed rack meshing with the ring gear, and the bottom of the lock plate is provided with an arc-shaped recess that is moved by the paddle of the lock core.

[0012] The first reset mechanism includes a lock plate spring and a fixing plate arranged on the lock housing, the fixing plate is provided with a telescopic hole, and a limiting column passing through the telescopic hole is provided on the top of the lock plate; the lock plate spring is sleeved on the limiting column and is located between the lock plate and the fixing plate.

[0013] A handle dial is installed on the lock shell, and the handle dial is provided with an unlocking dial block and a transmission dial block. The lock plate is provided with a dial opening, and the hand dial is located in the dial opening. The dial opening is provided with an unlocking protrusion that is moved by the unlocking dial block. A pull rod is connected to the lock shell shaft; one end of the pull rod is provided with a transmission hook that is moved by the transmission dial block, and the other end is provided with a pull groove, and a pull pin fixedly connected to the telescopic main board is installed in the pull groove.

[0014] The handle dial wheel outer cover is provided with an inclined tongue paddle, the inclined tongue transmission mechanism includes a transmission slide plate which can slide back and forth laterally on the telescopic main board and an inclined tongue slide plate connected to the inclined tongue, a second reset mechanism is installed on the inclined tongue slide plate, a transmission block is installed on the plate surface of the transmission slide plate, a slide rack meshed with the rotating gear is arranged on the top of the transmission slide plate, a lock core convex block to be toggled by the paddle of the lock core is arranged on the bottom of the transmission slide plate, a third reset mechanism connected to the telescopic main board is installed on the transmission slide plate, and a toggle bent piece to be toggled by the inclined tongue paddle and a toggle block pushed by the transmission block are arranged on the inclined tongue slide plate.

[0015] The beneficial effect of the present invention is that the annular rack of the present invention is fixed by the locking mechanism, so that when the motor gear is driven by the motor, it can drive the reduction gear set installed on the rotating gear, so that the rotating gear can rotate smoothly, and the rotating gear thereby drives the telescopic main board and the inclined tongue transmission mechanism, so that the inclined tongue and the lock tongue block can be retracted and unlocked, and the entire transmission process is smooth and reliable, effectively reducing the strong collision generated at the moment of motor rotation, and no sound will be made between the components, the force is evenly distributed, and the silencing effect is extremely excellent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 yes Figure 1 The local structure decomposition diagram;

[0019] Figure 3 It is the structural exploded diagram of the reduction gear set;

[0020] Figure 4 It is a partial structural exploded view of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0022] The directions or positional relationships indicated by "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] Reference Figures 1 to 4 , an electronic lock body with stable transmission, comprising a lock shell 1, the lock shell 1 is equipped with a lock core 2, a motor 3, a telescopic main board 4 and a latch bolt 5, the telescopic main board 4 is equipped with a latch bolt block 47, the latch bolt 5 is connected to a latch bolt transmission mechanism, a reduction combination gear for driving the telescopic main board 4 and the latch bolt transmission mechanism and a locking mechanism for locking the reduction combination gear are installed in the lock shell 1, the reduction combination gear comprises a main shaft 6 installed on the lock shell 1 and a motor gear 7, a ring gear 8 and a rotating gear 9 installed on the main shaft 6, the motor gear 7 is driven by the motor 3 (the motor gear 7 is meshed with a gear installed on the motor shaft), and a transmission gear 10 penetrated by the main shaft 6 is arranged on the motor gear 7, a closed ring rack 11 is arranged on the inner wall of the ring gear 8, and a mounting plate 12 is arranged on the side of the rotating gear 9, and a reduction gear is installed on the mounting plate 12 Wheel set, the transmission gear 10, the reduction gear set and the annular rack 11 are meshed in sequence, the telescopic main board 4 is provided with a through telescopic groove 17, and the side wall of the telescopic groove 17 is provided with a lock tongue rack 18 meshed with the rotating gear 9, and the locking mechanism will fix the annular rack 11, so that when the motor 3 drives the motor gear 7 to rotate, the transmission gear 10 can drive the rotating gear 9 to rotate through the reduction gear set, so that the telescopic main board 4 can cooperate with the lock tongue block 47 to perform longitudinal contraction, and the entire transmission process of the motor driving the telescopic main board through the reduction gear combination is stable and reliable, effectively reducing the strong collision generated at the moment of motor rotation, so that the motor can drive the telescopic main board and the oblique tongue transmission mechanism more stably, and there will be no sound between the components, and the mute effect is good; the bottom of the telescopic main board 4 is provided with a lock core notch 19 that is toggled by the paddle of the lock core 2, so that the lock core can also drive the telescopic main board 4 to realize the lock and unlock function of the lock core.

[0026] The reduction gear set includes two or more unit gears 13 surrounding the transmission gear 10. Each unit gear 13 is installed on the mounting plate 12 by a rivet 14 (the unit gear 13 is rotatable). Each unit gear 13 is respectively meshed with the transmission gear 10 and the annular rack 11, so that when the transmission gear drives the rotating gear 9 through the unit gear 13, the force on the rotating gear 9 is uniform, and the rotation of the rotating gear 9 is more stable.

[0027] The number of unit gears 13 of the reduction gear set can be three, and the three unit gears 13 are distributed at an angle of 120°. Compared with the reduction gear set composed of two unit gears 13, the three unit gears bear the force of the transmission gear more evenly, have stronger stability, and will not increase the difficulty of production and assembly.

[0028] The number of unit gears 13 of the reduction gear group can be four, and the four unit gears 13 are distributed at an angle of 90°. Compared with the reduction gear group composed of three unit gears 13, the force-bearing performance of the four unit gears is better and the stability is extremely high, but the difficulty of production and assembly will be increased. Continuing to increase the number of unit gears does not effectively increase its stability, and the difficulty and cost of production are significantly increased.

[0029] The reduction combination gear includes an annular pressing plate 15, on which mounting holes 16 corresponding to the number and position of the rivets 14 are provided. The annular pressing plate 15 is located between the motor gear 7 and the ring gear 8. The two sides of the annular rack 11 are respectively in contact with the annular pressing plate 15 and the mounting plate 12, so that the annular pressing plate 15 and the mounting plate 12 are located inside the annular rack 11, which effectively reduces the thickness of the reduction combination gear and has high space utilization. Each rivet is embedded in the corresponding mounting hole, so that the annular pressing plate can press and fix all the unit gears in the ring gear, effectively preventing the unit gears from moving on the rivets, and further improving the stability of the electronic door lock.

[0030] The locking mechanism includes a lock plate 20 and a first reset mechanism installed on the lock plate 20. The lock plate 20 is provided with a lock plate recess 21 for making way for the reduction combination gear. The side of the lock plate recess 21 is provided with a fixed rack 22 meshing with the ring gear 8. If the lock plate 20 is not moved up, the ring gear 8 is always meshed with the fixed rack 22, so that the ring gear 8 is fixed. The bottom of the lock plate 20 is provided with an arc-shaped recess 23 that is moved by the paddle of the lock core 2, so that the paddle of the lock core can lift the lock plate 20 to release the lock of the ring gear 8.

[0031] The first reset mechanism includes a lock plate spring 24 and a fixing plate 25 arranged on the lock housing 1, the fixing plate 25 is provided with a telescopic hole 26, and the top of the lock plate 20 is provided with a limiting column 27 passing through the telescopic hole 26; the lock plate spring 24 is sleeved on the limiting column 27 and is located between the lock plate 20 and the fixing plate 25, so that the lock plate 20 can be reset after being moved up and the ring gear 8 can be locked again.

[0032] The lock housing 1 is provided with a handle dial 28, and the handle dial 28 is provided with an unlocking dial block 29 and a transmission dial block 30. The lock plate 20 is provided with a dial opening 31, and the handle dial 28 is located in the dial opening 31, so as to improve the space utilization rate of the electronic door lock. The dial opening 31 is provided with an unlocking protrusion 32 which is driven by the unlocking dial block 29. After the handle dial 28 is rotated, the unlocking dial block 29 first touches the unlocking protrusion 32, and the lock plate 20 is lifted to unlock the fixing of the ring gear 8. Restriction, the lock housing 1 is connected to the rotating shaft with a pull rod 33; one end of the pull rod 33 is provided with a transmission hook 34 that is toggled by the transmission shift block 30, and the other end is provided with a pull groove 35, and a pull pin 36 fixedly connected to the telescopic main board 4 is installed in the pull groove 35. Therefore, the continuously rotating handle dial wheel 28 can pull the pull rod 33 through the transmission shift block 30. At this time, the motor gear is fixed and meshed with the gear on the motor, and the ring gear 8 rotates, so that the rotating gear can pull the telescopic main board back.

[0033] The handle dial wheel 28 is covered with a latch plate 37, and the latch transmission mechanism includes a transmission slide plate 38 that can slide back and forth laterally on the telescopic main board 4 and a latch plate 39 connected to the latch 5. The handle dial wheel 28 can drive the latch 5 to retract while lifting the lock plate and pulling the telescopic main board back. A second reset mechanism 40 is installed on the latch plate 39. Similar to the first reset mechanism, a pillar is set on the motor and a spring is set, and a hole for accommodating the pillar is set on the latch plate 39 so that the latch plate 39 has a reset function. A transmission block 41 is installed on the plate surface of the transmission slide plate 38, and a slide plate rack 42 engaged by the rotating gear 9 is set on the top of the transmission slide plate 38. The normal position of the slide plate rack 42 and the lock tongue rack 18 do not coincide. The rotating gear 9 is driven by the motor to first drive the lock tongue rack 18. After the telescopic main board 4 is retracted to the extreme, the slide plate rack 42 will be driven by the rotating gear 9 to cause the transmission slide plate 38 to move. The bottom of the lock core 8 is provided with a lock core protrusion 43 which is moved by the paddle of the lock core 2, so that the lock core can drive the transmission slide 38, and the transmission slide 38 is provided with a third reset mechanism 44 connected to the telescopic main board 4, and the oblique tongue slide 39 is provided with a toggle bent piece 45 which is moved by the oblique tongue paddle 37 and a toggle block 46 which is pushed by the transmission block 41. Therefore, after the transmission slide 38 is driven to move by the rotating gear 9 (motor) or the lock core, the oblique tongue slide 39 can be driven by the transmission block 41 to pull the oblique tongue 5. The transmission slide is provided with a through groove on the plate surface, and a rivet or screw fixed to the telescopic main board is installed in the groove, so that the transmission slide can be close to the telescopic main board 4 for longitudinal extension and contraction. The third reset mechanism 44 is mainly a spring, and the telescopic main board 4 and the transmission slide 38 are provided with limit components for fixing the two ends of the spring, so that the transmission slide 38 has a reset function. This is an existing commonly used parts reset technology and will not be described in detail.

[0034] A circuit board electrically connected to the motor and a mainboard sensor 48 triggered by the telescopic mainboard are installed in the lock housing. The mainboard sensor is electrically connected to the circuit board. A tilted tongue slide sensor 49 is installed on the circuit board. A triggering member 50 for triggering the tilted tongue slide sensor 49 is provided on the tilted tongue slide 39, so that when the tilted tongue slide 39 and the telescopic mainboard 4 are driven to a limited position by the motor, the triggering member 50 on the telescopic mainboard 4 and the tilted tongue slide 39 can respectively trigger the mainboard sensor 48 and the tilted tongue slide sensor 49, so that the motor stops rotating. The mainboard sensor is an infrared sensor.

[0035] The above implementation modes cannot limit the protection scope of the present invention. The equivalent modifications and changes made by those skilled in the art without departing from the overall concept of the present invention are still within the scope of the present invention.

Claims

1. An electronic lock body with stable transmission, comprising a lock housing (1), wherein the lock housing (1) is equipped with a lock cylinder (2), a motor (3), a telescopic main board (4) and a latch bolt (5), wherein a latch bolt block is installed on the telescopic main board (4), and the latch bolt (5) is connected to a latch bolt transmission mechanism, characterized in that A reduction gear assembly for driving the telescopic main plate (4) and the latch transmission mechanism and a locking mechanism for locking the reduction gear assembly are installed in the lock housing (1). The reduction gear assembly comprises a main shaft (6) installed on the lock housing (1) and a motor gear (7), a ring gear (8) and a rotating gear (9) installed on the main shaft (6). The motor gear (7) is driven by the motor (3), and a transmission gear (10) penetrated by the main shaft (6) is arranged on the motor gear (7). A closed ring rack (11) is arranged on the inner wall of the ring gear (8). A mounting plate (12) is arranged on the side of the rotating gear (9), and a reduction gear set is installed on the mounting plate (12). The transmission gear (10), the reduction gear set and the ring rack (11) are meshed in sequence. The reduction gear set comprises two or more unit gears (13) surrounding the transmission gear (10), each unit gear (13) being mounted on the mounting plate (12) by a rivet (14) passing through it, and each unit gear (13) being respectively meshed with the transmission gear (10) and the annular rack (11); The reduction assembly gear comprises an annular pressing plate (15), the annular pressing plate (15) being provided with mounting holes (16) corresponding to the number and position of the rivets (14), the annular pressing plate (15) being located between the motor gear (7) and the annular gear (8), and the two sides of the annular rack (11) being respectively in contact with the annular pressing plate (15) and the mounting plate (12); A circuit board electrically connected to the motor (3) and a mainboard sensor (48) triggered by the telescopic mainboard (4) are installed in the lock housing (1); the mainboard sensor (48) is electrically connected to the circuit board.

2. The electronic lock body with stable transmission according to claim 1, characterized in that The number of unit gears (13) of the reduction gear set is three, and the three unit gears (13) are distributed at an angle of 120°.

3. The electronic lock body with stable transmission according to claim 1, characterized in that The number of unit gears (13) of the reduction gear set is four, and the four unit gears (13) are distributed at an angle of 90°.

4. The electronic lock body with stable transmission according to claim 1, characterized in that The telescopic main plate (4) is provided with a penetrating telescopic groove (17), a side wall of the telescopic groove (17) is provided with a lock tongue rack (18) meshing with the rotating gear (9), and a lock core notch (19) is provided at the bottom of the telescopic main plate (4) to be moved by a paddle of the lock core (2).

5. The electronic lock body with stable transmission according to claim 1, characterized in that The locking mechanism comprises a lock plate (20) and a first reset mechanism mounted on the lock plate (20); the lock plate (20) is provided with a lock plate recess (21) for accommodating the reduction combination gear; a fixed rack (22) meshing with the ring gear (8) is provided on the side of the lock plate recess (21); and an arc-shaped recess (23) to be moved by a paddle of the lock core (2) is provided at the bottom of the lock plate (20).

6. The electronic lock body with stable transmission according to claim 5, characterized in that The first reset mechanism comprises a lock plate spring (24) and a fixing plate (25) arranged on the lock housing (1); a telescopic hole (26) is arranged on the fixing plate (25); a limiting column (27) penetrating the telescopic hole (26) is arranged on the top of the lock plate (20); the lock plate spring (24) is sleeved on the limiting column (27) and is located between the lock plate (20) and the fixing plate (25).

7. The electronic lock body with stable transmission according to claim 5, characterized in that The lock housing (1) is provided with a handle dial wheel (28), the handle dial wheel (28) is provided with an unlocking dial block (29) and a transmission dial block (30), the lock plate (20) is provided with a dial wheel opening (31), the handle dial wheel (28) is located in the dial wheel opening (31), the dial wheel opening (31) is provided with an unlocking protrusion (32) to be moved by the unlocking dial block (29), and the lock housing (1) is connected to a rotating shaft with a pull rod (33); one end of the pull rod (33) is provided with a transmission hook (34) to be moved by the transmission dial block (30), and the other end is provided with a pull groove (35), and a pull pin (36) fixedly connected to the telescopic main board (4) is installed in the pull groove (35).

8. The electronic lock body with stable transmission according to claim 7, characterized in that The handle dial wheel (28) is covered with a latch bolt paddle (37), the latch bolt transmission mechanism comprises a transmission slide plate (38) which can slide back and forth laterally on the telescopic main board (4) and a latch bolt slide plate (39) connected to the latch bolt (5), a second reset mechanism (40) is mounted on the latch bolt slide plate (39), a transmission block (41) is mounted on the plate surface of the transmission slide plate (38), a slide rack (42) meshed with the rotating gear (9) is arranged at the top of the transmission slide plate (38), a lock core protrusion (43) moved by the paddle of the lock core (2) is arranged at the bottom of the transmission slide plate (38), a third reset mechanism (44) connected to the telescopic main board (4) is mounted on the transmission slide plate (38), and a moving bent piece (45) moved by the latch bolt paddle (37) and a moving block (46) pushed by the transmission block (41) are arranged on the latch bolt slide plate (39).

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