Lock tongue driving structure with multi-stage speed reduction function and lock body

Abstract

The utility model provides a lock tongue driving structure with multistage speed reduction and a lock body, a speed reducer is connected with the output end of a driving motor, and a first driving reversing gear is in driving connection with the driving motor through the speed reducer; the second driving reversing gear is in meshed connection with the first driving reversing gear, the first connecting gear and the second driving reversing gear are coaxially arranged, and the first connecting gear is in driving connection with the first spring bolt driving assembly through the reduction gear assembly; the reduction gear assembly comprises at least one stage of reduction duplex gear. The speed reducer is arranged between the driving reversing gear and the driving motor, so that the driving reversing gear is not located at the high-speed tooth position, large noise is avoided, meanwhile, the speed reduction gear assembly is arranged between the driving reversing gear and the spring bolt gear, the driving reversing gear is not located at the high-torque position, and therefore noise is reduced. The torque borne by the driving reversing gear in the transmission process is reduced, and therefore the tooth breaking or tooth skipping phenomenon of the driving reversing gear is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lock bodies, and in particular to a lock tongue driving structure with multi-stage deceleration and a lock body. Background Art

[0002] In the existing lock body, when the lock is unlocked by the driving motor and the driving reversing gear, the driving reversing gear is generally set in two ways: the first way is to set the driving reversing gear at the tail end of the reduction gear box, and directly connect the driving reversing gear with the lock tongue driving structure. This setting method will cause the driving reversing gear to have a higher torque. The high torque will cause the teeth to wear severely and break, and will also cause the teeth to be subjected to a large reverse force and slip or jump. The second way is to set the driving reversing gear at the head of the reduction gear box, and directly connect the driving reversing gear to the output end of the driving motor. This setting method will cause the driving reversing gear to become a high-speed tooth, and the driving reversing gear will generate a large noise when rotating at a high speed.

[0003] The current drive reversing gears of the reduction gearbox are all set at the tail end of the reduction gearbox, that is, the low-speed gear position, and the low-speed gear is subject to a large torque. In addition, due to a certain pressure angle of gear meshing, the greater the torque, the greater the pressure on the gear shaft, resulting in high wear, low life, and instability. The drive reversing gear of the present application is set in the middle of the reduction gearbox, and the gear shaft is subject to less pressure. At the same time, compared with the gear set at the head, the speed is smaller, and the vibration and noise are also smaller. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a lock tongue driving structure and a lock body with multi-stage deceleration.

[0005] According to the utility model, a bolt driving structure with multi-stage deceleration is provided, comprising: a driving motor, a reducer, a first driving reversing gear, a second driving reversing gear, a first connecting gear and a reduction gear assembly;

[0006] The reducer is connected to the output end of the driving motor, and the first driving reversing gear is drivingly connected to the driving motor through the reducer;

[0007] The second drive reversing gear is meshed and connected with the first drive reversing gear, the first connecting gear is coaxially arranged with the second drive reversing gear, and the first connecting gear is drive-connected with the first lock tongue driving assembly through the reduction gear assembly; the reduction gear assembly includes at least one stage of reduction double teeth.

[0008] Preferably, the bolt driving structure further comprises a reset component, wherein the reset component is connected to the driving motor or the reducer, and the reset component is used for resetting the driving motor and the reducer.

[0009] Preferably, the reset assembly includes a fixing frame, a first elastic member and a driving plate;

[0010] The driving plate is arranged at one end of the reducer away from the driving motor, and the driving plate and the reducer are slidably arranged on the fixing frame;

[0011] The driving plate and the fixing frame are connected via the first elastic member.

[0012] Preferably, the reset assembly includes a fixing frame, a second elastic member, a driving plate and a fixing plate;

[0013] The driving plate is arranged at one end of the reducer away from the driving motor, and the driving plate and the reducer are slidably arranged on the fixing frame;

[0014] A limiting protrusion is arranged at one end of the driving motor away from the driving plate, one end of the second elastic member is connected to the limiting protrusion, and the other end of the second elastic member is connected to the fixing plate.

[0015] Preferably, the first driving reversing gear is directly connected to the output end of the reducer.

[0016] Preferably, the first driving reversing gear is connected to the output end of the reducer via a clutch assembly;

[0017] The clutch assembly includes a clutch rod and a clutch sleeve; the clutch rod and the clutch sleeve are respectively arranged on one of the first driving reversing gear and the reducer;

[0018] The clutch sleeve is sleeved on the clutch rod along the axial direction of the clutch rod. Under the driving of external force, the clutch sleeve can move to be separated from or assembled with the clutch rod.

[0019] Preferably, the deceleration double-linked teeth are arranged in two stages, namely, the first deceleration double-linked teeth and the second deceleration double-linked teeth;

[0020] The first reduction double teeth are meshed and connected with the first connecting gear, the second reduction double teeth are meshed and connected with the first reduction double teeth, and the second reduction double teeth are drivingly connected with the first bolt driving assembly.

[0021] Preferably, the first bolt driving assembly comprises a first bolt driving gear, a driving rod, a guide plate, a guide rod and a driving plate body;

[0022] The driving rod is coaxially arranged with the first locking tongue driving gear, the first locking tongue driving gear can drive the driving rod to rotate, and the driving rod pushes the driving plate body by rotating;

[0023] The guide rod is slidably disposed on the guide plate, one end of the guide rod is connected to the first locking tongue, and the other end of the guide rod is connected to the driving plate body;

[0024] The first locking tongue driving gear is meshingly connected with the reduction double-linked teeth.

[0025] Preferably, a limiting block is provided on one end of the driving rod close to the first locking tongue, and an elastic reset member is provided between the limiting block and the guide plate.

[0026] The utility model also provides a lock body, comprising the above-mentioned lock tongue driving structure with multi-stage deceleration.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] 1. The utility model arranges a reducer between the driving reversing gear and the driving motor so that the driving reversing gear is not in the high-speed tooth position, thereby avoiding the generation of large noise. At the same time, a reduction gear assembly is arranged between the driving reversing gear and the lock tongue gear so that the driving reversing gear is not in the high-torque position, thereby reducing the torque received by the driving reversing gear during the transmission process, thereby avoiding the phenomenon of broken teeth or tooth jumping of the driving reversing gear.

[0029] 2. The utility model provides a clutch assembly, which can move the drive motor by external force, so that the drive motor is disengaged from the reduction gear assembly, thereby avoiding the influence of the lock core drive structure or the handle drive structure when the drive motor fails. At the same time, by providing a reset assembly, the drive motor can be reset after movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0031] Figure 1 It is a structural schematic diagram of a bolt driving structure with multi-stage deceleration;

[0032] Figure 2 It is a structural schematic diagram of a lock body with a bolt driving structure having a multi-stage deceleration;

[0033] Figure 3 A schematic diagram showing the structure of the clutch plate in an initial state;

[0034] Figure 4To highlight the structural diagram of the lever just touching the clutch plate;

[0035] Figure 5 A schematic diagram for highlighting the structure of the clutch plate being abutted and rotated by the shifting rod;

[0036] Figure 6 A schematic diagram for highlighting the structure of the reset component in the first embodiment;

[0037] Figure 7 A schematic diagram for highlighting the structure of the motor drive assembly in the first embodiment;

[0038] Figure 8 It is a structural schematic diagram of the lever lock cylinder;

[0039] Fig. 9 A schematic diagram for highlighting the structure of the reset component in the second embodiment;

[0040] Fig.10 To highlight the structure of the motor drive assembly in the third embodiment Figure 1 ;

[0041] Fig.11 To highlight the structure of the motor drive assembly in the third embodiment Figure 2 ;

[0042] Fig.12 A schematic diagram showing the structure of the clutch cylinder and the clutch rod being in a disengaged state;

[0043] Fig.13 It is a schematic diagram of the structure of the gear lock cylinder;

[0044] Fig.14 A schematic diagram for highlighting the structure of the second bolt drive gear and the push rod;

[0045] Fig.15 To show the structure of virtual position and virtual position driving parts Figure 1 ;

[0046] Fig.16 To show the structure of virtual position and virtual position driving parts Figure 2 .

[0047] The figure shows:

[0048] Lock core structure 1 Push rod 19

[0049] Clutch plate 2 Guide hole 20

[0050] First vertical rod 201 guide shaft 21

[0051] First crossbar 202 Limiting protrusion 22

[0052] Rotating connection structure 203 First locking tongue 23

[0053] Arc-shaped abutment surface 204 driving motor 24

[0054] Driving rod 3 First driving reversing gear 25

[0055] Lever 4 First clutch lever 26

[0056] Sector gear 5 Clutch sleeve 27

[0057] Arc chute 6 Second drive reversing gear 28

[0058] Guide plate 7 First reduction double gear 29

[0059] Guide rod 8 Second reduction double gear 30

[0060] Fixed frame 9 Reducer 31

[0061] First elastic member 10 Third locking tongue driving gear 32

[0062] Driving plate 11 Driving plate body 33

[0063] Second elastic member 12 Limiting block 34

[0064] Fixed plate 13 Elastic reset member 35

[0065] First lock tongue drive gear 14 Second lock tongue 36

[0066] First connecting gear 15 Second connecting gear 37

[0067] Second bolt drive gear 16 Second clutch lever 38

[0068] Connecting plate 17 Virtual structure 39

[0069] Oblique slot 18 Motor driven virtual position drive member 40 DETAILED DESCRIPTION

[0070] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0071] Embodiment 1:

[0072] like Figures 1 to 8As shown, a lock tongue driving structure with multi-stage deceleration includes: a driving motor 24, a reducer 31, a first driving reversing gear 25, a second driving reversing gear 28, a first connecting gear 15 and a reduction gear assembly; the reducer 31 is connected to the output end of the driving motor 24, and the first driving reversing gear 25 is drivingly connected to the driving motor 24 through the reducer 31; the second driving reversing gear 28 is meshedly connected to the first driving reversing gear 25, the first connecting gear 15 is coaxially arranged with the second driving reversing gear 28, and the first connecting gear 15 is drivingly connected to the first lock tongue driving assembly through the reduction gear assembly; the reduction gear assembly includes at least one stage of deceleration double teeth.

[0073] The bolt driving structure also includes a reset component, which is connected to the driving motor 24 or the reducer 31, and is used to reset the driving motor 24 and the reducer 31. The reset component includes a fixing frame 9, a first elastic member 10, and a driving plate 11; the driving plate 11 is arranged at one end of the reducer 31 away from the driving motor 24, and the driving plate 11 and the reducer 31 are slidably arranged on the fixing frame 9; the driving plate 11 and the fixing frame 9 are connected by the first elastic member 10.

[0074] The first driving reversing gear 25 is directly connected to the output end of the reducer 31 .

[0075] The deceleration double teeth are arranged in two stages, namely, the first deceleration double teeth 29 and the second deceleration double teeth 30; the first deceleration double teeth 29 are meshedly connected with the first connecting gear 15, the second deceleration double teeth 30 are meshedly connected with the first deceleration double teeth 29, and the second deceleration double teeth 30 are drive-connected with the first lock tongue driving assembly.

[0076] like Figure 2 and Fig.14 As shown, the first bolt driving assembly includes a first bolt driving gear 14, a driving rod 3, a guide plate 7, a guide rod 8 and a driving plate body 33; the driving rod 3 is coaxially arranged with the first bolt driving gear 14, the first bolt driving gear 14 can drive the driving rod 3 to rotate, and the driving rod 3 pushes the driving plate body 33 by rotating; the guide rod 8 is slidably arranged on the guide plate 7, one end of the guide rod 8 is connected to the first bolt 23, and the other end of the guide rod 8 is connected to the driving plate body 33; the first bolt driving gear 14 is meshed with the deceleration double-linked teeth. A limit block 34 is arranged at one end of the driving rod 3 close to the first bolt 23, and an elastic reset member 35 is arranged between the limit block 34 and the guide plate 7. The driving rod 3 is an L-shaped structure, and one end of a side structure of the L-shaped structure is used to abut and push the driving plate body 33.

[0077] This embodiment also provides a lock body, including the above-mentioned lock tongue driving structure with multi-stage deceleration.

[0078] The lock body also includes a lock core structure 1 and a clutch plate 2; the lock core structure 1 is drivingly connected to the clutch plate 2, the clutch plate 2 can drive the motor drive assembly to move away from the first lock tongue drive assembly, and the reset assembly is used to reset the motor drive assembly.

[0079] The lock core structure 1 is a lever lock core. The lock body also includes a first sector gear 5, which is used to connect to the second bolt drive assembly; an arc-shaped slide groove 6 is provided in the lock body, and the first sector gear 5 is slidably arranged in the lock body through the arc-shaped slide groove 6. The lever 4 of the lever lock core can slide the first sector gear 5; during the rotation of the lever 4, the lever 4 drives the clutch plate 2 to rotate a preset distance, and then drives the first sector gear 5 to rotate. Fig.13 As shown, in some other embodiments, the lock core structure 1 can also be a gear lock core.

[0080] The clutch plate 2 includes a first vertical rod 201, a first horizontal rod 202 and a rotation connection structure 203 which are connected to each other; one end of the first vertical rod 201 and one end of the first horizontal rod 202 are connected to the rotation connection structure 203, and the rotation connection structure 203 is rotationally arranged in the lock body; the other end of the first vertical rod 201 is used to abut against the lever 4, and the other end of the first horizontal rod 202 is used to push the motor drive assembly to move. The clutch plate 2 is provided with an arcuate abutting surface 204, which is arranged on the first vertical rod 201; when the lever 4 abuts against and pushes the clutch plate 2, one end of the lever 4 abuts and slides on the arcuate abutting surface 204.

[0081] The second bolt drive assembly includes a second bolt drive gear 16 and a second connecting gear 37. The second bolt drive gear 16 is meshed and connected with the sector gear 5. The second bolt drive gear 16 and the second connecting gear 37 are coaxially arranged. The second connecting gear 37 is meshed and connected with a third bolt drive gear 32. The third bolt drive gear 32 is coaxially arranged with the first bolt drive gear 14. The second bolt 36 is connected with a connecting plate 17, and an oblique groove 18 is arranged on the connecting plate 17; Fig.14 As shown, a push rod 19 is provided on the second lock tongue driving gear 16, and the push rod 19 is located in the oblique groove 18; the second lock tongue driving gear 16 drives the push rod 19 to rotate, and during the movement of the push rod 19, the connecting plate 17 and the second lock tongue 36 are driven to move in the horizontal direction through the push rod 19 and the oblique groove 18; a guide shaft 21 is provided in the lock body, and a guide hole 20 is provided on the connecting plate 17, and the guide shaft 21 is located in the guide hole 20.

[0082] In this embodiment, the first locking tongue 23 is an oblique locking tongue, the second locking tongue 36 is a main locking tongue, and the driving rod 3 is an oblique tongue driving rod.

[0083] like Fig.15 and Fig.16As shown, a virtual position structure 39 is provided on the third lock tongue drive gear 32, and the virtual position structure 39 is a groove structure. A motor-driven virtual position drive component 40 is provided on the drive rod 3. When the lock body is locked in the initial state, the motor-driven virtual position drive component 40 is located at the "zero" position of the virtual position structure 39, that is, the A position in the figure. When the motor drive component drives to unlock, the motor-driven virtual position drive component 40 rotates in the virtual position structure 39 and reaches the B position at most, and will not drive the second lock tongue drive component connected to the lock core. After unlocking is completed, the motor drive component rotates, and the motor-driven virtual position drive component 40 will return to the A position. Similarly, due to the existence of the virtual position structure 39, when the lock core drives to unlock, it will not drive the first lock tongue drive component. However, when the motor drive assembly does not rotate back to its position due to some reasons, the motor drive virtual position drive member 40 does not return to position A and is located between position A and position B. This will cause the motor drive virtual position drive member 40 to drive the first lock tongue drive assembly when the lock core is unlocked. However, since the motor drive assembly is not in a working state, the first lock tongue drive assembly is in a state where it cannot be driven, and the lock core unlocking will be affected, resulting in failure to achieve normal unlocking. The present application disconnects the motor drive assembly from the first lock tongue drive assembly through a clutch plate, thereby solving the above problem. When there is no clutch, the reducer and the motor will be driven to rotate together. The motor has a certain self-locking torque. After passing through the reducer gear, the lock core needs a lot of torque to rotate. Many users cannot rotate it, and some will break the key.

[0084] Embodiment 2:

[0085] like Fig. 9 As shown, the difference between this embodiment and embodiment 1 is that the reset assembly includes a fixing frame 9, a second elastic member 12, a drive plate 11 and a fixing plate 13; the drive plate 11 is arranged at an end of the reducer 31 away from the drive motor 24, and the drive plate 11 and the reducer 31 are slidably arranged on the fixing frame 9; a limiting protrusion 22 is arranged at an end of the drive motor 24 away from the drive plate 11, one end of the second elastic member 12 is connected to the limiting protrusion 22, and the other end of the second elastic member 12 is connected to the fixing plate 13.

[0086] Embodiment 3:

[0087] like Figures 10-12 As shown, the difference between this embodiment and embodiment 1 is that no reset assembly is provided, and the lock tongue drive device further includes: a first clutch rod 26, a second clutch rod 38 and a clutch sleeve 27; the clutch plate 2 is connected to the clutch sleeve 27, the first clutch rod 26 is connected to the output end of the first lock tongue drive assembly, and the second clutch rod 38 is connected to the motor drive assembly; the clutch sleeve 27 is sleeved on the first clutch rod 26 and the second clutch rod 38; when the clutch plate 2 drives the clutch plate 2 to move, the clutch sleeve 27 can be separated from the first clutch rod 26 or the second clutch rod 38.

[0088] The clutch sleeve 27 is a cylindrical structure, a square guide hole is provided in the middle of the clutch sleeve 27, and the clutch rod 26 is a square column structure, which is located in the square guide hole and can slide in the square guide hole.

[0089] The utility model realizes multi-stage deceleration by arranging a reducer between the driving reversing gear and the driving motor, and arranging a reduction gear assembly between the driving reversing gear and the lock tongue gear, thereby reducing the driving torque on the driving reversing gear, reducing the damage effect on the driving reversing gear, and prolonging the service life of the driving reversing gear.

[0090] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0091] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A bolt driving structure with multi-stage deceleration, characterized in that: include: A driving motor (24), a speed reducer (31), a first driving reversing gear (25), a second driving reversing gear (28), a first connecting gear (15) and a speed reduction gear assembly; The reducer (31) is connected to the output end of the drive motor (24), and the first drive reversing gear (25) is drivingly connected to the drive motor (24) through the reducer (31); The second drive reversing gear (28) is meshedly connected with the first drive reversing gear (25), the first connecting gear (15) is coaxially arranged with the second drive reversing gear (28), and the first connecting gear (15) is drivingly connected with the first bolt driving assembly through the reduction gear assembly; the reduction gear assembly includes at least one stage of reduction double teeth.

2. The bolt driving structure with multi-stage deceleration according to claim 1, characterized in that: The bolt drive structure also includes a reset component, which is connected to the drive motor (24) or the reducer (31), and is used for resetting the drive motor (24) and the reducer (31).

3. The bolt driving structure with multi-stage deceleration according to claim 2, characterized in that: The reset assembly comprises a fixing frame (9), a first elastic member (10) and a driving plate (11); The driving plate (11) is arranged at one end of the reducer (31) away from the driving motor (24), and the driving plate (11) and the reducer (31) are slidably arranged on the fixing frame (9); The driving plate (11) and the fixing frame (9) are connected via the first elastic member (10).

4. The bolt driving structure with multi-stage deceleration according to claim 2, characterized in that: The reset assembly comprises a fixing frame (9), a second elastic member (12), a driving plate (11) and a fixing plate (13); The driving plate (11) is arranged at one end of the reducer (31) away from the driving motor (24), and the driving plate (11) and the reducer (31) are slidably arranged on the fixing frame (9); A limiting protrusion (22) is provided at one end of the driving motor (24) away from the driving plate (11), one end of the second elastic member (12) is connected to the limiting protrusion (22), and the other end of the second elastic member (12) is connected to the fixing plate (13).

5. The bolt driving structure with multi-stage deceleration according to claim 1, characterized in that: The first driving reversing gear (25) is directly connected to the output end of the reducer (31).

6. The bolt driving structure with multi-stage deceleration according to claim 1, characterized in that: The first driving reversing gear (25) is connected to the output end of the reducer (31) via a clutch assembly; The clutch assembly comprises a clutch rod (26) and a clutch sleeve (27); the clutch rod (26) and the clutch sleeve (27) are respectively arranged on one of the first driving reversing gear (25) and the reducer (31); The clutch sleeve (27) is sleeved on the clutch rod (26) along the axial direction of the clutch rod (26); under the drive of an external force, the clutch sleeve (27) can move to be separated from or assembled with the clutch rod (26).

7. The bolt driving structure with multi-stage deceleration according to claim 1, characterized in that: The deceleration double-linked teeth are arranged in two stages, namely, a first deceleration double-linked teeth (29) and a second deceleration double-linked teeth (30); The first deceleration double-linked teeth (29) are meshedly connected with the first connecting gear (15), the second deceleration double-linked teeth (30) are meshedly connected with the first deceleration double-linked teeth (29), and the second deceleration double-linked teeth (30) are drivingly connected with the first bolt driving assembly.

8. The bolt driving structure with multi-stage deceleration according to claim 1, characterized in that: The first bolt driving assembly comprises a first bolt driving gear (14), a driving rod (3), a guide plate (7), a guide rod (8) and a driving plate body (33); The driving rod (3) is coaxially arranged with the first locking tongue driving gear (14); the first locking tongue driving gear (14) can drive the driving rod (3) to rotate, and the driving rod (3) pushes the driving plate (33) by rotating; The guide rod (8) is slidably disposed on the guide plate (7), one end of the guide rod (8) is connected to the first locking tongue (23), and the other end of the guide rod (8) is connected to the driving plate body (33); The first bolt driving gear (14) is meshingly connected with the deceleration double-linked teeth.

9. The bolt driving structure with multi-stage deceleration according to claim 8, characterized in that: A limit block (34) is provided on one end of the driving rod (3) close to the first locking tongue (23), and an elastic reset member (35) is provided between the limit block (34) and the guide plate (7).

10. A lock body, characterized in that: It comprises the bolt driving structure with multi-stage deceleration as claimed in any one of claims 1 to 9.

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