CN114320025A - Motor unlocking transmission mechanism of intelligent lock - Google Patents
Motor unlocking transmission mechanism of intelligent lock Download PDFInfo
- Publication number
- CN114320025A CN114320025A CN202111657552.6A CN202111657552A CN114320025A CN 114320025 A CN114320025 A CN 114320025A CN 202111657552 A CN202111657552 A CN 202111657552A CN 114320025 A CN114320025 A CN 114320025A
- Authority
- CN
- China
- Prior art keywords
- transmission
- motor
- piece
- inner core
- eccentric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a motor unlocking transmission mechanism of an intelligent lock, which comprises a lock body shell and a motor, wherein the motor is fixedly arranged in the lock body shell, the motor also comprises a transmitter and a transmission assembly, the transmitter can be slidably arranged in the lock body shell, the transmitter can trigger or break away from the unlocking mechanism by reciprocating sliding, the transmission assembly can be rotatably arranged in the lock body shell, the transmission assembly is provided with an eccentric shifting rod, the eccentric shifting rod can shift the transmitter to reciprocate to realize unlocking and locking along with the forward and reverse rotation of the transmission assembly, and the motor is electrified to drive the transmission assembly to rotate towards the unlocking direction.
Description
Technical Field
The invention relates to the field of intelligent locks, in particular to a motor unlocking transmission mechanism of an intelligent lock.
Background
The intelligent lock is because its use is more convenient, and the security is higher, need not to carry advantages such as key and is liked by the consumer extensively, and the intelligent lock is when the unblock, inputs correct password or types into behind correct fingerprint etc. the motor can get the electricity and trigger release mechanism through unblock drive mechanism and unblock, presses after the unblock and rotates the handle and can open the door.
The unlocking transmission structure for triggering the unlocking mechanism of the existing intelligent lock is complex in overall structure, large in size and large in occupied space of the lock body, so that the intelligent lock is large in size and difficult to meet the design requirement of small size.
Disclosure of Invention
In order to overcome the defects, the invention provides the intelligent lock motor unlocking transmission mechanism which is simple and compact in structure, small in occupied space, capable of buffering the power output of the motor and capable of avoiding burning out the motor.
The invention adopts the technical scheme for solving the technical problems that: the utility model provides an intelligence lock motor unblock drive mechanism, includes lock body shell and motor, motor fixed mounting still includes send son and drive assembly in the lock body shell, send son can gliding installation in the lock body shell, send son reciprocating sliding can trigger or break away from release mechanism, drive assembly can the pivoted install in the lock body shell, is equipped with an eccentric driving lever on the drive assembly, eccentric driving lever is along with drive assembly just reversing can stir send son reciprocating sliding and realize unblock and shutting, and the motor is got electric and can drive assembly and rotate towards the unblock direction.
As a further improvement of the invention, the structure that the motor is electrified and can drive the transmission assembly to rotate is as follows: a transmission gear can be further arranged in the lock body shell in a rotating mode, a motor gear is fixedly arranged on a motor power output shaft, the motor gear is in meshing transmission with the transmission gear, the transmission gear is coaxially and fixedly connected with a worm, meshing teeth are arranged on the outer side wall of the circumference of the transmission assembly, and the meshing teeth are in meshing transmission with the worm.
As a further improvement of the present invention, the transmission assembly includes a first transmission member, a second transmission member, a first torsion piece and a second torsion piece, the first transmission member and the second transmission member can be connected in an inserting manner in a relatively rotating manner, the motor is powered to drive the first transmission member to rotate, one end of the first torsion piece and one end of the second torsion piece are respectively and symmetrically fixed on the circumferential outer side wall of the second transmission member, the first torsion piece and the second torsion piece can elastically deform along the rotation direction of the second transmission member, and the other end of the first torsion piece and the other end of the second torsion piece can be respectively positioned in a locking manner with the first transmission member.
As a further improvement of the present invention, the first transmission member is provided with a first eccentric stop wall and a second eccentric stop wall at intervals along the rotation direction thereof, and the other ends of the first torsion piece and the second torsion piece respectively tightly abut against the surfaces of the first eccentric stop wall and the second eccentric stop wall on the first transmission member.
As a further improvement of the invention, a semicircular arc-shaped blocking piece is arranged on the first transmission piece, the first eccentric blocking wall and the second eccentric blocking wall are respectively two side walls of the semicircular arc-shaped blocking piece, a torsion spring coil is sleeved on the outer side wall of the circumference of the second transmission piece, the middle part of the torsion spring coil is fixedly connected with the second transmission piece, the extension arms at two ends of the torsion spring respectively tightly abut against the two side walls of the semicircular arc-shaped blocking piece, and the extension arms at two ends of the torsion spring form a first torsion piece and a second torsion piece.
As a further improvement of the invention, the lock body is also provided with an inner core and an inner core cover, wherein the inner core is fixedly arranged in the lock body shell, the inner core cover is fixedly arranged at one side of the inner core, a space for accommodating the motor and the transmission assembly is formed between the inner core and the inner core cover, a linear slideway for the reciprocating sliding of the feeder is formed between the inner core and the inner core cover, and the feeder can be slidably inserted in the linear slideway.
As a further improvement of the present invention, the feeder is provided with a first elongated guide groove extending along the sliding direction of the feeder, the inner core cover is provided with a first limiting protrusion protruding toward the inner core, the first limiting protrusion can be inserted into the first elongated guide groove on the feeder, and the first elongated guide groove and the first limiting protrusion can slide relatively.
As a further improvement of the present invention, a second limiting protrusion is further disposed on a side wall of the feeder facing the inner core, a second elongated guide groove extending along a sliding direction of the feeder is disposed on the side wall of the inner core, and the second limiting protrusion is slidably inserted into the second elongated guide groove.
As a further improvement of the invention, the side wall of the conveyer is provided with a hollow jack, the eccentric deflector rod is inserted into the jack on the side wall of the conveyer, two side walls of the end part of the eccentric deflector rod along the sliding direction of the conveyer are respectively provided with a flange structure, and the flange structure is stopped on one side surface of the side wall of the conveyer, which is back to the transmission assembly.
As a further improvement of the invention, an arc-shaped triggering push-out plate is fixedly arranged on the feeder, the arc-shaped triggering push-out plate covers the outer side of the handle head of the lock body, and the arc-shaped triggering push-out plate can push a clutch pin on the handle head of the lock body to slide so as to realize the circumferential stopping positioning or the circumferential rotating positioning of the handle head and the square bar.
The invention has the beneficial effects that: after the power of the motor is output to the transmission assembly rotatably arranged in the lock body shell, the eccentric deflector rod on the transmission assembly drives the conveyer to do linear reciprocating motion, so that the requirement of converting the rotation of the motor into linear motion is met, the transmission assembly comprises the first transmission assembly, the second transmission assembly and the torsion spring to form a soft transmission mechanism, the buffer after the motor is started by power supply is realized, the damage to the motor and the conveyer caused by hard start is avoided, the intelligent lock is simple and compact in structure and small in occupied space, the motor is not easy to damage after long-term use, and the service life of the intelligent lock is prolonged.
Drawings
FIG. 1 is a first exploded perspective view of the present invention;
FIG. 2 is a second exploded perspective view of the present invention;
FIG. 3 is a front view of the present invention in a first state;
FIG. 4 is a front view of the present invention in a second state; a
FIG. 5 is an exploded perspective view of the transmission assembly;
FIG. 6 is a schematic front view of an intelligent lock embodying the present invention;
fig. 7 is a sectional view taken along line a-a in fig. 6.
Detailed Description
Example (b): the utility model provides an intelligence lock motor unblock drive mechanism, includes lock body shell and motor 1, 1 fixed mounting of motor still includes send son 2 and drive assembly in the lock body shell, send son 2 can gliding installation in the lock body shell, send 2 reciprocating sliding of son to trigger or break away from release mechanism, drive assembly can pivoted install in the lock body shell, is equipped with an eccentric driving lever 3 on the drive assembly, eccentric driving lever 3 is along with drive assembly just reversing can stir 2 reciprocating sliding of son and realize unblock and shutting, and motor 1 gets electric and can drive assembly and rotate towards the unblock direction.
The intelligent lock comprises a lock body, a transmission assembly, a motor 1, an eccentric shifting rod 3, a transmission assembly, a handle, an unlocking structure and a handle, wherein the transmission assembly is driven to rotate after the motor 1 is powered on, the eccentric shifting rod 3 on the transmission assembly shifts the transmission assembly 2 to slide towards the direction of the handle head of the lock body while rotating along with the transmission assembly, the unlocking structure on the handle head is further triggered, the intelligent lock is unlocked, and the door can be opened by pressing the handle.
The structure that the motor 1 is electrified and can drive the transmission assembly to rotate is as follows: a transmission gear 4 can also be arranged in the lock body shell in a rotating mode, a motor gear 5 is fixedly arranged on a power output shaft of the motor 1, the motor gear 5 is in meshing transmission with the transmission gear 4, the transmission gear 4 is coaxially and fixedly connected with a worm 6, meshing teeth 7 are arranged on the outer side wall of the circumference of the transmission assembly, and the meshing teeth 7 are in meshing transmission with the worm 6. Motor 1 has formed a speed reduction transmission structure through motor gear 5 and drive gear 4 cooperation, drive gear 4 links firmly with the worm 6 is coaxial, drive gear 4 rotates and just drives worm 6 synchronous rotation, and then drives the drive assembly through ox and tooth and rotate, and this structure has realized big torsion power transmission, and simultaneously, motor 1 pivot and drive gear 4 parallel interval set up, and drive gear 4 sets up with drive assembly axial vertical, and like this, just make whole structure compacter, need not to occupy the too big space in the lock body.
The transmission assembly comprises a first transmission piece 8, a second transmission piece 9, a first torsion piece and a second torsion piece, the first transmission piece 8 and the second transmission piece 9 can be connected in a plugging mode in a relative rotating mode, the motor 1 can drive the first transmission piece 8 to rotate when being electrified, one ends of the first torsion piece and one ends of the second torsion piece are respectively and symmetrically and fixedly arranged on the outer side wall of the circumference of the second transmission piece 9, the first torsion piece and the second torsion piece can generate elastic deformation along the rotating direction of the second transmission piece 9, and the other ends of the first torsion piece and the second torsion piece can be respectively positioned with the first transmission piece 8 in a locking mode. The structure enables a certain elastic buffer to exist between the first transmission piece 8 and the second transmission piece 9 through the first torsion piece and the second torsion piece, so that the power is output to the transmitter 2 through certain elastic buffer after the motor 1 is started, hard start is avoided, the motor 1 and the transmitter 2 are not damaged, the structure that the first transmission member 8 and the second transmission member 9 can be connected in an inserting manner and rotate relatively may be that the second transmission member 9 is inserted into the first transmission member 8, the first transmission member 8 and the second transmission member 9 are separately sleeved on the outer side of the same rotating shaft at intervals, or a rotating shaft or shaft sleeve structure is formed on a side wall of the first transmission member 8, and the second transmission member 9 is sleeved on the outer side of the rotating shaft or shaft sleeve structure.
The first transmission member 8 is provided with a first eccentric stopping wall 10 and a second eccentric stopping wall 11 at intervals along the rotation direction, and the other ends of the first torsion piece and the second torsion piece respectively tightly abut against the surfaces of the first eccentric stopping wall 10 and the second eccentric stopping wall 11 on the first transmission member 8. The first torsion piece and the second torsion piece form a cantilever structure, the free ends of the first torsion piece and the second torsion piece generate certain elastic force, and the free ends of the first torsion piece and the second torsion piece abut against the first eccentric stopping wall 10 and the second eccentric stopping wall 11 of the first transmission piece 8 to form stopping positioning with the first transmission piece 8.
The first transmission part 8 is provided with a semicircular arc-shaped retaining piece 12, the first eccentric retaining wall 10 and the second eccentric retaining wall 11 are respectively two side walls of the semicircular arc-shaped retaining piece 12, the outer side wall of the circumference of the second transmission part 9 is sleeved with a torsion spring coil 13, the middle part of the torsion spring coil 13 is fixedly connected with the second transmission part 9, the extension arms 14 at two ends of the torsion spring tightly abut against the two side walls of the semicircular arc-shaped retaining piece 12 respectively, and the extension arms 14 at two ends of the torsion spring form a first torsion piece and a second torsion piece.
The extension arm 14 by the torsional spring both ends forms first torsion piece and second torsion piece, and its torsion is big, and elasticity is good, simple structure, simple to operate, and the structure that 13 middle parts of torsional spring coil and second driving medium 9 linked firmly can be: the middle part of the torsion spring coil 13 forms a salient point towards the inner side direction of the torsion spring coil 13, a radial groove is formed on the outer circumferential side wall of the second transmission part 9, the salient point is clamped in the radial groove, the middle part of the torsion spring coil 13 and the outer circumferential side wall of the second transmission part 9 can be fixed through a connecting part or spot welding, and the like, which are equivalent alternative structures easily thought by those skilled in the art according to the patent belong to the protection scope of the patent.
The lock is characterized by further comprising an inner core 15 and an inner core cover 16, wherein the inner core 15 is fixedly installed in the lock body shell, the inner core cover 16 is fixedly installed on one side of the inner core 15, a space for accommodating the motor 1 and the transmission assembly is formed between the inner core 15 and the inner core cover 16, a linear slideway for the conveyor 2 to slide in a reciprocating mode is formed between the inner core 15 and the inner core cover 16, and the conveyor 2 can be slidably inserted into the linear slideway.
Through setting up inner core 15 and inner core lid 16 in the lock body shell, realize holding and the location to motor 1 and transmission assembly to the slide positioning and the slip direction of sending son 2 for this mechanism forms a module, is convenient for assemble in the lock body, can realize the fixed to motor 1 simultaneously, and the mode that motor 1 fixed a position in inner core 15 and inner core lid 16 can be: the motor 1 is fixed by a connecting piece, or a non-cylindrical accommodating cavity matched with the shape of the motor 1 is formed between the inner core 15 and the inner core cover 16, and the motor 1 is accommodated in the accommodating cavity just in a stopping way and is clamped and positioned by the side wall of the accommodating cavity.
The feeding device 2 is provided with a first long strip-shaped guide groove 17 extending along the sliding direction of the feeding device, the inner core cover 16 is provided with a first limiting bump 18 protruding towards the inner core 15, the first limiting bump 18 can be inserted into the first long strip-shaped guide groove 17 on the feeding device 2, and the first long strip-shaped guide groove 17 and the first limiting bump 18 can slide relatively. Through set up first locating point position lug on inner core lid 16, form first rectangular shape guide way 17 on sending son 2, the two grafting location that can relatively slide forms and send son 2 slip direction's direction and spacing.
The side wall of the feeder 2 facing one side of the inner core 15 is further provided with a second limiting bump 19, the side wall of the inner core 15 is provided with a second elongated guide groove 20 extending along the sliding direction of the feeder 2, and the second limiting bump 19 can be slidably inserted into the second elongated guide groove 20. Through set up the rectangular shape guide way 20 of second on inner core 15, form the second fixed point position lug on sending son 2, the two can the relative gliding grafting location, form and send son 2 slip direction another direction and spacing, multiple direction and spacing have guaranteed the accuracy of sending son 2 sliding position, avoid appearing the mistake unblock.
The side wall of the feeder 2 is provided with a hollow jack 21, the eccentric shift lever 3 is inserted into the jack 21 on the side wall of the feeder 2, two side walls of the end part of the eccentric shift lever 3 along the sliding direction of the feeder 2 are respectively provided with a flange structure 22, and the flange structure 22 stops at the surface of one side wall of the feeder 2, which is back to the transmission assembly. The eccentric shifting rod 3 on the transmission assembly swings in the insertion hole 21 on the side wall of the conveyer 2 to drive the conveyer 2 to linearly slide in a reciprocating manner, and flange structures 22 are formed on two sides of the end part of the eccentric shifting rod 3, so that the conveyer 2 can be prevented from being separated from the eccentric shifting rod 3 in the sliding process.
An arc-shaped triggering push plate 23 is fixedly arranged on the transmitter 2, the arc-shaped triggering push plate 23 covers the outer side of the handle head of the lock body, and the arc-shaped triggering push plate 23 can push a clutch pin 24 on the handle head of the lock body to slide so as to realize the locking positioning of the handle head and the square bar in the circumferential direction or the rotating positioning in the circumferential direction. The arc-shaped trigger pushing plate 23 is arranged on the feeder 2 to trigger the clutch pin 24 for unlocking, so that the arc-shaped trigger pushing plate 23 cannot interfere with the handle head in the rotation process of the handle, and no influence is caused when the door lock is reversed.
Claims (10)
1. The utility model provides an intelligence lock motor unblock drive mechanism, includes lock body shell and motor (1), motor fixed mounting is in the lock body shell, its characterized in that: still including sending son (2) and drive assembly, send the son to be installed in the lock body shell that can be gliding, send the son to slide to trigger or break away from release mechanism, drive assembly can the pivoted install in the lock body shell, the last eccentric driving lever (3) that is equipped with of drive assembly, the eccentric driving lever along with drive assembly just reversing can stir the son to slide to realize unblock and shutting, the motor is got electric and can drive assembly and rotate towards the unblock direction.
2. The intelligent lock motor unlocking transmission mechanism according to claim 1, wherein: the structure that the motor is electrified and can drive the transmission assembly to rotate is as follows: a transmission gear (4) can also be arranged in the lock body shell in a rotating mode, a motor gear (5) is fixedly arranged on a motor power output shaft, the motor gear is in meshing transmission with the transmission gear, the transmission gear is coaxially fixedly connected with a worm (6), meshing teeth (7) are arranged on the outer side wall of the circumference of the transmission assembly, and the meshing teeth are in meshing transmission with the worm.
3. The intelligent lock motor unlocking transmission mechanism according to claim 1 or 2, characterized in that: the transmission assembly comprises a first transmission piece (8), a second transmission piece (9), a first torsion piece and a second torsion piece, the first transmission piece and the second transmission piece can be connected in a plugging mode in a relative rotating mode, the motor is electrified to drive the first transmission piece to rotate, one ends of the first torsion piece and one ends of the second torsion piece are respectively and symmetrically and fixedly arranged on the outer side wall of the circumference of the second transmission piece, the first torsion piece and the second torsion piece can generate elastic deformation along the rotating direction of the second transmission piece, and the other ends of the first torsion piece and the second torsion piece can be positioned with the first transmission piece in a locking mode.
4. The intelligent lock motor unlocking transmission mechanism according to claim 3, wherein: the first transmission piece is provided with a first eccentric stopping wall (10) and a second eccentric stopping wall (11) at intervals along the rotation direction of the first transmission piece, and the other ends of the first torsion piece and the second torsion piece respectively and tightly abut against the surfaces of the first eccentric stopping wall and the second eccentric stopping wall on the first transmission piece.
5. The intelligent lock motor unlocking transmission mechanism according to claim 4, wherein: be equipped with half convex separation blade (12) on the first driving medium, first eccentric backstop wall and the eccentric backstop wall of second are half circular arc separation blade both sides wall respectively, and the cover is equipped with a torsional spring coil (13) on the second driving medium circumference lateral wall, and torsional spring coil middle part links firmly with the second driving medium, and the extension arm (14) at torsional spring both ends tightly support half circular arc separation blade both sides wall respectively, and the extension arm at torsional spring both ends forms first torsion piece and second torsion piece.
6. The intelligent lock motor unlocking transmission mechanism according to claim 1, wherein: still be equipped with inner core (15) and inner core lid (16), inner core fixed mounting is in the lock body shell, and inner core lid fixed mounting is in inner core one side, forms the space that holds motor and drive assembly between inner core and the inner core lid, forms the reciprocal gliding sharp slide of confession sender between inner core and the inner core lid, and what the sender can be gliding inserts and locates in the sharp slide.
7. The intelligent lock motor unlocking transmission mechanism according to claim 4, wherein: the feeding device is provided with a first strip-shaped guide groove (17) extending along the sliding direction of the feeding device, the inner core cover is provided with a first limiting lug (18) protruding towards the inner core direction, the first limiting lug can be inserted into the first strip-shaped guide groove on the feeding device, and the first strip-shaped guide groove and the first limiting lug can slide relatively.
8. The intelligent lock motor unlocking transmission mechanism according to claim 4, wherein: the side wall of the side, facing the inner core, of the feeder is further provided with a second limiting bump (19), the side wall of the inner core is provided with a second strip-shaped guide groove (20) extending along the sliding direction of the feeder, and the second limiting bump can be slidably inserted into the second strip-shaped guide groove.
9. The intelligent lock motor unlocking transmission mechanism according to claim 1, wherein: the side wall of the conveyer is provided with a hollow jack (21), the eccentric deflector rod is inserted into the jack on the side wall of the conveyer, the end part of the eccentric deflector rod is respectively provided with a flange structure (22) along the two side walls of the sliding direction of the conveyer, and the flange structure is stopped on the surface of one side of the side wall of the conveyer, which is back to the transmission assembly.
10. The intelligent lock motor unlocking transmission mechanism according to claim 1, wherein: an arc-shaped triggering push plate (23) is fixedly arranged on the transmitter, the arc-shaped triggering push plate covers the outer side of the handle head of the lock body, and the arc-shaped triggering push plate can push a clutch pin (24) on the handle head of the lock body to slide so as to realize locking positioning of the handle head and the square bar in the circumferential direction or rotation positioning in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111657552.6A CN114320025A (en) | 2021-12-30 | 2021-12-30 | Motor unlocking transmission mechanism of intelligent lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111657552.6A CN114320025A (en) | 2021-12-30 | 2021-12-30 | Motor unlocking transmission mechanism of intelligent lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114320025A true CN114320025A (en) | 2022-04-12 |
Family
ID=81018874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111657552.6A Pending CN114320025A (en) | 2021-12-30 | 2021-12-30 | Motor unlocking transmission mechanism of intelligent lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114320025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118081319A (en) * | 2024-03-21 | 2024-05-28 | 中核四川环保工程有限责任公司 | Automatic consumable replacement device for dismantling tool head of high-level storage tank |
-
2021
- 2021-12-30 CN CN202111657552.6A patent/CN114320025A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118081319A (en) * | 2024-03-21 | 2024-05-28 | 中核四川环保工程有限责任公司 | Automatic consumable replacement device for dismantling tool head of high-level storage tank |
| CN118081319B (en) * | 2024-03-21 | 2024-08-23 | 中核四川环保工程有限责任公司 | Automatic consumable replacement device for dismantling tool head of high-level storage tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0651978A1 (en) | Improvements in brushes for personal hygiene purposes | |
| CN114320025A (en) | Motor unlocking transmission mechanism of intelligent lock | |
| CN111927221B (en) | Automatic electronic lock body structure with high space utilization rate | |
| CN217151576U (en) | Motor unlocking transmission mechanism of intelligent lock | |
| CN110103618B (en) | Automatic advance and retreat pencil sharpener | |
| EP1264118B1 (en) | Centrifugal clutch | |
| CN102126034B (en) | Electric tool | |
| CN109667485B (en) | Electronic lock core | |
| CN201664773U (en) | Electric tool | |
| CN214990166U (en) | Can opener accessory | |
| CN216110117U (en) | Handle lock | |
| CN220485295U (en) | Can opener | |
| CN212002695U (en) | Door lock body square bar seat idle rotation structure | |
| CN201900632U (en) | Internal impact switching device of electric hammer | |
| CN212725508U (en) | Storage battery convenient to disassemble and assemble | |
| CN214246929U (en) | Mechanical clutch structure and lock of handle | |
| CN211287085U (en) | Intelligent door lock and lock body thereof | |
| CN210436096U (en) | Clutch structure for switching functions of electric hammer and electric hammer | |
| CN209135107U (en) | A kind of traction device | |
| CN218406957U (en) | Driving mechanism for door lock handle clutch pin | |
| CN201573178U (en) | Electric hammer | |
| CN220653177U (en) | Motor of electric toothbrush | |
| CN219492448U (en) | Pulling-free starter for small diesel engine | |
| CN216110140U (en) | Lock body | |
| CN212002726U (en) | Automatic lock convenient to unlock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |