Gearbox with overrunning clutch structure and intelligent lock
By introducing a gear box beyond the clutch structure into the lock, the problem of the handle colliding with the door frame or the user when the motor rotates, achieving safe and reliable lock operation.
Patent Information
- Application Number
- CN202422418389.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The handle in the existing locks rotates together when the motor turns the door to open and close, causing collision with the door frame or user, posing a safety hazard.
The gear box with an overpass clutch structure is adopted, including hand connecting parts, rotary connecting parts, holders and rollers. By setting up a clutch structure between the hand connecting parts and the rotary connecting parts, the hand connecting parts can drive the rotary connecting parts to rotate when mechanically locked/unlocked, and unbound with the rotary connecting parts when the lock is automatically locked/unlocked, to prevent the hand connecting parts from rotating with the rotary connecting parts.
It effectively avoids collision between hand-connected parts and door frames or users, and improves the safety and user experience of opening and closing doors.
Smart Images
Figure CN223151813U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to a gearbox with an overrunning clutch structure and an intelligent lock. Background Art
[0002] In the related art, the handle in the lock is connected to the square shaft connector of the motor through a handle connector. When the motor rotates to open or close the door, the handle will rotate together. At this time, the rotating handle may hit the door frame, resulting in damage to the lock or the door frame, poor experience of opening and closing the door, and even may hit the user's palm or arm on the handle, there is a certain safety hazard. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a gearbox with an overrunning clutch structure to solve the problem that the handle of the existing lock rotates together when the motor rotates to open or close the door, resulting in the handle colliding with the door frame or the user.
[0004] The utility model is realized through the following technical solutions:
[0005] A gearbox with an overrunning clutch structure includes a hand connecting member, a rotating connecting member, a retaining member and a roller. The hand connecting member has an assembly hole. One end of the rotating connecting member is inserted into the assembly hole and is spaced from the hole wall of the assembly hole to form an assembly space. The retaining member is sleeved outside the rotating connecting member and has an inner ring portion embedded in the assembly space. The roller is movably connected inside the inner ring portion and part of the roller protrudes from the inner ring portion. A relief recess is formed on the hole wall of the assembly hole. The hand connecting member can rotate relative to the retaining member to move the part of the roller protruding from the inner ring portion into or out of the relief recess. The rotating connecting member can rotate relative to the retaining member. When the part of the roller protruding from the inner ring portion moves out of the relief recess, the roller abuts against the hand connecting member and the rotating connecting member respectively, restricting the relative rotation of the rotating connecting member and the hand connecting member. When the part of the roller protruding from the inner ring portion moves into the relief recess, the roller releases the rotating connecting member to enable the rotating connecting member to rotate relative to the retaining member and the hand connecting member.
[0006] Further, the roller is rotatably connected to the inner ring portion. When the part of the roller protruding from the inner ring portion moves into or out of the relief recess, the roller moves radially relative to the inner ring portion.
[0007] Further, the relief recess is a V-shaped groove or a U-shaped groove that gradually transitions with the hole wall of the assembly hole; and / or both the roller and the relief recess are in several numbers and correspond to each other one by one. Several relief recesses are spaced circumferentially on the inner ring portion.
[0008] Furthermore, it also includes a shell, the hand connection piece and the transfer piece are rotatably connected to the shell, and the hand connection piece and the transfer piece are partially accommodated in the shell and connected in the shell.
[0009] Furthermore, a first elastic member is provided in the shell, one end of the first elastic member is connected to the retaining member and the other end is connected to the shell, and when the retaining member rotates synchronously with the hand connection member and the rotating connection member, the first elastic member makes the retaining member have a movement tendency to rotate in the opposite direction.
[0010] Furthermore, a second elastic member is provided on the hand connection member, and when the hand connection member rotates, the second elastic member enables the hand connection member to have a movement tendency of rotating in the opposite direction.
[0011] Furthermore, the shell is provided with a positioning block above the hand connection, the hand connection is provided with a reset ring which rotates therewith, the reset ring has a toggle block located below the positioning block, the second elastic member is a torsion spring provided on the hand connection, the torsion spring has two free ends, and the two free ends are respectively arranged on opposite sides of the positioning block and the toggle block. When the hand connection rotates, one free end abuts against the positioning block, and the other free end abuts against the toggle block, and the torsion spring stores energy as the hand connection rotates.
[0012] Furthermore, the housing has two limit blocks, which are arranged opposite to each other in the rotation direction of the hand connection piece, and the limit blocks are used to circumferentially abut against the toggle block to limit the rotation of the hand connection piece.
[0013] Furthermore, it also includes a driving mechanism, the transfer member is driven by the driving mechanism, the driving mechanism includes an output gear, the output gear has a transmission hole and two transmission blocks, the two transmission blocks protrude from the wall of the transmission hole and are spaced apart in the circumferential direction of the transmission hole, the transfer member is partially accommodated in the transmission hole and has a stop block that can circumferentially resist the transmission block.
[0014] In order to solve the problem that the handle of the existing lock rotates together with the motor when the door is turned to open or close, causing the handle to collide with the door frame or the user, the utility model provides a gear box with an overrunning clutch structure, and accordingly, provides a smart lock, including a lock housing, a handle and a gear box, the gear box being arranged in the lock housing, the handle being arranged on the gear box, the gear box being the above-mentioned gear box with an overrunning clutch structure, and the hand connection piece being connected to the handle.
[0015] The advantages of this technical solution are as follows. By setting a clutch structure composed of a retaining member and rollers between the hand connecting member and the rotating connecting member, the hand connecting member can drive the rotating connecting member to rotate to achieve locking / unlocking during mechanical locking / unlocking, and the hand connecting member can be decoupled from the rotating connecting member during automatic locking / unlocking of the lock, avoiding the hand connecting member from colliding with the door frame or the user when following the rotating connecting member to rotate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a perspective view of the intelligent lock disclosed in the embodiment;
[0017] Figure 2 is a cross-sectional view of the intelligent lock disclosed in the embodiment;
[0018] Figure 3 is a perspective view of the gearbox with an overrunning clutch structure disclosed in the embodiment;
[0019] Figure 4 is a front view of the gearbox with an overrunning clutch structure disclosed in the embodiment;
[0020] Figure 5 is Figure 4 a cross-sectional view taken along line A-A in
[0021] Figure 6 is a side view of the gearbox with an overrunning clutch structure disclosed in the embodiment;
[0022] Figure 7 is Figure 6 a cross-sectional view taken along line B-B in
[0023] Figure 8 is Figure 7 a partial enlarged view at D in
[0024] Figure 9 is Figure 6 a cross-sectional view taken along line C-C in
[0025] Figure 10 is an exploded view of the gearbox with an overrunning clutch structure disclosed in the embodiment;
[0026] Figure 11 is a perspective view of the hand connecting member disclosed in the embodiment;
[0027] Figure 12 is a perspective view of the return ring disclosed in the embodiment;
[0028] Figure 13 is an assembly schematic diagram of the retaining member and the rollers disclosed in the embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0030] Embodiment: As Figure 1-13 shown, the intelligent lock includes a lock shell 1, a handle 2, and a gear box 3. The gear box 3 is disposed inside the lock shell 1, the handle 2 is disposed on the gear box 3. The gear box 3 includes a hand connecting member 301, a rotating connecting member 302, a retaining member 303, a roller 304, and a driving mechanism 305. The hand connecting member 301 has an assembly hole 306. One end of the rotating connecting member 302 is inserted into the assembly hole 306 and is spaced from the hole wall of the assembly hole 306 to form an assembly space 307. The retaining member 303 is sleeved outside the rotating connecting member 302 and has an inner ring portion 308 embedded in the assembly space 307. The roller 304 is movably connected inside the inner ring portion 308 and partially protrudes from the inner ring portion 308. A relief recess 309 is formed on the hole wall of the assembly hole 306. The hand connecting member 301 can rotate relative to the retaining member 303 to move the part of the roller 304 protruding from the inner ring portion 308 into or out of the relief recess 309. The rotating connecting member 302 can rotate relative to the retaining member 303. When the part of the roller 304 protruding from the inner ring portion 308 moves out of the relief recess 309, the roller 304 abuts against the hand connecting member 301 and the rotating connecting member 302 respectively, restricting the relative rotation of the rotating connecting member 302 and the hand connecting member 301. When the part of the roller 304 protruding from the inner ring portion 308 moves into the relief recess 309, the roller 304 releases the rotating connecting member 302, enabling the rotating connecting member 302 to rotate relative to the retaining member 303 and the hand connecting member 301. The rotating connecting member 302 is driven by the driving mechanism 305. The handle 2 can rotate relative to the lock shell 1 and is fixedly connected to the hand connecting member 301.
[0031] It should be noted that in the initial state, the part of the roller 304 protruding from the inner ring portion 308 is located in the relief recess 309, and the rotating connecting member 302 and the hand connecting member 301 are in an unlocked state. At this time, the rotating connecting member 302 can rotate relative to the retaining member 303 and the hand connecting member 301.
[0032] The intelligent lock can be mechanically locked / unlocked and automatically locked / unlocked:
[0033] Among them, when mechanically locking / unlocking, the movement of each component is as follows: the user rotates the handle 2, and the handle 2 drives the hand connection 301 to rotate relative to the retaining member 303, so that the portion of the roller 304 protruding from the inner ring portion 308 moves away from the clearance recess 309. When the portion of the roller 304 protruding from the inner ring portion 308 moves away from the clearance recess 309, the portion of the roller 304 protruding from the inner ring portion 308 respectively resists the hand connection 301 and the rotating connection 302 to limit the relative rotation of the rotating connection 302 and the hand connection 301. At this time, the hand connection 301 and the rotating connection 302 are locked by the roller 304, and the hand connection 301, the retaining member 303 and the rotating connection 302 rotate synchronously, thereby realizing mechanical locking / unlocking.
[0034] Among them, when automatically locking / unlocking, because in the initial state, the part of the roller 304 protruding from the inner ring portion 308 is located in the yield recess 309, the roller 304 does not exert pressure on the rotating link 302, and the rotating link 302 can rotate relative to the retaining member 303 and the hand link 301. Therefore, the hand link 301 and the handle 2 will not rotate when the lock body is automatically locked / unlocked (when the driving mechanism 305 drives the rotating link 302 to rotate).
[0035] In summary, the present embodiment provides a smart lock to solve the problem that the handle of the existing lock rotates together with the motor when the door is opened and closed, causing the handle to collide with the door frame or the user. The problem is mainly solved by setting a clutch structure composed of a retaining member 303 and a roller 304 between the hand link 301 and the rotating link 302, so that the hand link 301 can drive the rotating link 302 to rotate to achieve locking / unlocking during mechanical locking / unlocking, and the hand link 301 can be untied from the rotating link 302 when the lock is automatically locked / unlocked, thereby preventing the hand link 301 from rotating with the rotating link 302 and colliding with the door frame or the user.
[0036] In the embodiment of the utility model, the roller 304 is rotatably connected to the inner ring portion 308. When the portion of the roller 304 protruding from the inner ring portion 308 moves into or away from the recessed portion 309, the roller 304 moves relative to the inner ring portion 308 in the radial direction of the inner ring portion 308. The above arrangement enables the portion of the roller 304 protruding from the inner ring portion 308 to move smoothly into or away from the recessed portion 309 by configuring the roller 304 to be rotatably connected to the inner ring portion 308 and to move relative to the inner ring portion 308 in the radial direction of the inner ring portion 308.
[0037] In the embodiment of the utility model, the recessed portion 309 is a V-shaped groove or a U-shaped groove that slowly transitions with the hole wall of the assembly hole 306. The above arrangement facilitates the portion of the roller 304 protruding from the inner ring portion 308 to move into or out of the recessed portion 309 by setting the recessed portion 309 to be a V-shaped groove or a U-shaped groove that slowly transitions with the hole wall of the assembly hole 306.
[0038] In the embodiment of the utility model, there are multiple rollers 304 and multiple recesses 309 corresponding to each other, and multiple recesses 309 are arranged at intervals in the circumferential direction of the inner ring 308. The above arrangement is to configure multiple rollers 304 and multiple recesses 309 at intervals in the circumferential direction of the inner ring 308, so that the part of the roller 304 protruding from the inner ring 308 moves away from the recesses 309 and has more contact surface when it abuts against the hand connection 301 and the rotating connection 302, thereby achieving a good locking effect between the hand connection 301, the roller 304 and the rotating connection 302.
[0039] In the embodiment of the utility model, a housing 310 is further included. The hand connector 301 and the rotating connector 302 are rotatably connected to the housing 310 . The hand connector 301 and the rotating connector 302 are partially accommodated in the housing 310 and connected in the housing 310 .
[0040] In the embodiment of the utility model, a first elastic member 311 is provided in the housing 310, one end of the first elastic member 311 is connected to the retaining member 303 and the other end is connected to the housing 310, and the first elastic member 311 makes the retaining member 303 have a tendency to rotate in the opposite direction when the retaining member 303 rotates synchronously with the hand connecting member 301 and the rotating connecting member 302. The above arrangement increases the friction between the roller 304 and the hand connecting member 301 and the rotating connecting member 302 by arranging the first elastic member 311 between the retaining member 303 and the housing 310 so that the retaining member 303 has a tendency to rotate in the opposite direction when the hand connecting member 301 and the rotating connecting member 302 rotate synchronously, so as to achieve a good locking effect between the hand rotating member, the roller 304 and the rotating connecting member 302.
[0041] In the embodiment of the utility model, the hand link 301 is provided with a second elastic member 312, and when the hand link 301 rotates, the second elastic member 312 makes the hand link 301 have a tendency to rotate in the opposite direction. The above arrangement enables the hand link 301 (handle 2) to automatically reset after the user's external force is removed by providing the second elastic member 312 on the hand link 301 so that the hand link 301 has a tendency to rotate in the opposite direction when it rotates. It should be noted that in the initial state, the hand link 301 is located in the initial position (reset position), at which time, the portion of the roller 304 protruding from the inner ring portion 308 is located in the recessed portion 309, that is, when the hand link 301 is in the reset position, it is in an untied (unlocked) state with the rotating link 302.
[0042] In the embodiment of the utility model, the housing 310 is provided with a positioning block 313 above the hand-connecting member 301, and a reset ring 314 is provided on the hand-connecting member 301 to rotate with the hand-connecting member 301, and the reset ring 314 has a toggle block 315 located below the positioning block 313. The second elastic member 312 is a torsion spring provided on the hand-connecting member 301, and the torsion spring has two free ends 316, and the two free ends 316 are respectively provided on opposite sides of the positioning block 313 and the toggle block 315. When the hand-connecting member 301 rotates, one free end 316 abuts against the positioning block 313, and the other free end 316 abuts against the toggle block 315 to store energy with the rotation of the hand-connecting member 301. The above arrangement configures the second elastic member 312 as a torsion spring, and allows the torsion spring to store energy when the hand-connecting member 301 rotates, so that the hand-connecting member 301 (handle 2) can be automatically reset after the external force of the user is removed, and the structure is simple and easy to implement.
[0043] In the embodiment of the utility model, the housing 310 has two limit blocks 317, which are arranged at intervals in the rotation direction of the hand link 301. The limit blocks 317 are used to circumferentially abut against the toggle block 315 to limit the rotation of the hand link 301. The above arrangement is to limit the rotation range of the hand link 301 (handle 2) by arranging two limit blocks 317 arranged at intervals in the rotation direction of the hand link 301 to limit the rotation of the hand link 301.
[0044] In the embodiment of the utility model, the driving mechanism 305 includes a reduction gear set 318, an output gear 319 and a motor 320. The output end of the motor 320 is connected to the reduction gear set 318 in a transmission manner. The output gear 319 is connected to the reduction gear set 318 in a transmission manner. The output gear 319 has a transmission hole 321 and two transmission blocks 322. The two transmission blocks 322 protrude from the hole wall of the transmission hole 321 and are arranged at intervals in the circumferential direction of the transmission hole 321. The rotating link 302 is partially accommodated in the transmission hole 321 and has a stop block 323 that can circumferentially abut against the transmission block 322. The motor 320 drives the reduction gear set 318 to rotate, and the reduction gear set 318 drives the output gear 319 to rotate. When the output gear 319 rotates, it rotates circumferentially around the rotating link 302. When the transmission block 322 abuts against the stop block 323, the output gear 319 drives the rotating link 302 to rotate. The above arrangement is achieved by arranging two transmission blocks 322 at intervals in the circumferential direction of the transmission hole 321, so that the rotating link 302 can idle relative to the output gear 319 within the maximum angle range between the stop block 323 and the transmission block 322. Further, when the hand connection 301 drives the rotating link 302 to rotate through the clutch structure, the rotating link 302 will not drive the output gear 319 to rotate within a certain angle, thereby reducing noise.
[0045] As described above, one or more embodiments are provided in combination with specific contents, and it is not considered that the specific implementation of the present utility model is limited only to these descriptions. Any method, structure, etc. that is similar or identical to that of the present utility model, or any technical deduction or replacement made under the premise of the concept of the present utility model should be regarded as the protection scope of the present utility model.
Claims
1. A gearbox with an overrunning clutch structure, characterized in that, It includes a hand connecting member (301), a rotating connecting member (302), a retaining member (303) and a roller (304). The hand connecting member (301) has an assembly hole (306). One end of the rotating connecting member (302) is inserted into the assembly hole (306) and is spaced from the hole wall of the assembly hole (306) to form an assembly space (307). The retaining member (303) is sleeved outside the rotating connecting member (302) and has an inner ring portion (308) embedded in the assembly space (307). The roller (304) is movably connected inside the inner ring portion (308) and partially protrudes from the inner ring portion (308). A relief recess (309) is formed on the hole wall of the assembly hole (306). The hand connecting member (301) can rotate relative to the retaining member (303) to make the part of the roller (304) protruding from the inner ring portion (308) move into or out of the relief recess (309), and the rotating connecting member (302) can rotate relative to the retaining member (303). When the part of the roller (304) protruding from the inner ring portion (308) moves out of the relief recess (309), the roller (304) abuts against the hand connecting member (301) and the rotating connecting member (302) respectively, restricting the relative rotation of the rotating connecting member (302) and the hand connecting member (301). When the part of the roller (304) protruding from the inner ring portion (308) moves into the relief recess (309), the roller (304) releases the rotating connecting member (302) to make the rotating connecting member (302) able to rotate relative to the retaining member (303) and the hand connecting member (301).
2. The gearbox with an overrunning clutch structure according to claim 1, characterized in that, The roller (304) is rotatably connected to the inner ring portion (308). When the part of the roller (304) protruding from the inner ring portion (308) moves into or out of the relief recess (309), the roller (304) moves radially relative to the inner ring portion (308) within the inner ring portion (308).
3. The gearbox with an overrunning clutch structure according to claim 1 or 2, characterized in that The relief recess (309) is a V-shaped groove or a U-shaped groove that gradually transitions with the hole wall of the assembly hole (306); and / or both the roller (304) and the relief recess (309) are provided in several numbers and correspond one by one, and several relief recesses (309) are spaced in the circumferential direction of the inner ring portion (308).
4. The gearbox with an overrunning clutch structure according to claim 1, characterized in that, It further includes a housing (310). The hand connecting member (301) and the rotating connecting member (302) are rotatably connected to the housing (310). The hand connecting member (301) and the rotating connecting member (302) are partially accommodated in the housing (310) and are connected within the housing (310).
5. The gearbox with an overrunning clutch structure according to claim 4, characterized in that, A first elastic member (311) is provided inside the housing (310). One end of the first elastic member (311) is connected to the retaining member (303) and the other end is connected to the housing (310). When the retaining member (303) rotates synchronously with the hand connecting member (301) and the rotating connecting member (302), the first elastic member (311) makes the retaining member (303) have a tendency to rotate in the opposite direction.
6. The gearbox with an overrunning clutch structure according to claim 4, characterized in that, The hand connecting member (301) is provided with a second elastic member (312), and when the hand connecting member (301) rotates, the second elastic member (312) causes the hand connecting member (301) to have a movement tendency of rotating in the opposite direction.
7. The gearbox with an overrunning clutch structure according to claim 6, characterized in that, The housing (310) is provided with a positioning block (313) above the hand-connecting member (301); a reset ring (314) is passed through the hand-connecting member (301) and rotates therewith; the reset ring (314) has a toggle block (315) located below the positioning block (313); the second elastic member (312) is a torsion spring passed through the hand-connecting member (301); the torsion spring has two free ends (316); the two free ends (316) are respectively disposed on opposite sides of the positioning block (313) and the toggle block (315); when the hand-connecting member (301) rotates, one of the free ends (316) abuts against the positioning block (313), and the other free end (316) abuts against the toggle block (315), and rotates with the hand-connecting member (301) to store energy in the torsion spring.
8. The gearbox with an overrunning clutch structure according to claim 7, characterized in that, The housing (310) has two limit blocks (317), which are arranged at intervals in the rotation direction of the hand connection member (301), and the limit blocks (317) are used to abut against the toggle block (315) in the circumferential direction to limit the rotation of the hand connection member (301).
9. The gearbox with an overrunning clutch structure according to claim 1, wherein The invention also comprises a driving mechanism (305), wherein the transfer member (302) is driven by the driving mechanism (305), wherein the driving mechanism (305) comprises an output gear (319), wherein the output gear (319) has a transmission hole (321) and two transmission blocks (322), wherein the two transmission blocks (322) protrude from the hole wall of the transmission hole (321) and are arranged at intervals in the circumferential direction of the transmission hole (321), and wherein the transfer member (302) is partially accommodated in the transmission hole (321) and has a stop block (323) capable of abutting against the transmission block (322) in the circumferential direction.
10. The intelligent lock includes a lock housing (1), a handle (2) and a gear box (3). The gear box (3) is arranged inside the lock housing (1), and the handle (2) is arranged on the gear box (3). It is characterized in that, The gear box (3) is a gear box with an overrunning clutch structure as described in any one of claims 1 to 9, and the hand connection piece (301) is connected to the handle (2).