CN219492958U - Electronic lock - Google Patents
Electronic lock Download PDFInfo
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- CN219492958U CN219492958U CN202320080777.8U CN202320080777U CN219492958U CN 219492958 U CN219492958 U CN 219492958U CN 202320080777 U CN202320080777 U CN 202320080777U CN 219492958 U CN219492958 U CN 219492958U
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- eccentric
- planetary gear
- electronic lock
- assembly
- gear assembly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses an electronic lock, include: a driving device including an output shaft outputting torque; the speed increasing device comprises a fixed shaft, and a primary planetary gear assembly, a final planetary gear assembly and an intermediate planetary gear assembly which are arranged on the fixed shaft; each stage of planetary gear assembly comprises a sun gear fixedly arranged on a fixed shaft, a plurality of planetary gears meshed with the sun gear and an external rotary gear ring meshed with the planetary gears, the planetary gears are arranged on a planetary carrier, and an output shaft is coaxially connected with the planetary carrier of the primary planetary gear assembly; the eccentric assembly is arranged on the outer rotary gear ring of the final planetary gear assembly; the eccentric assembly comprises an eccentric part, the lock rod is provided with a clamping concave part, and the eccentric part is connected with the clamping concave part in a matching way; the speed-raising device formed by the planetary gear assemblies of the electronic lock has the advantages of small transmission structure size, compact structure, stable motion, larger transmission bearing capacity and high transmission efficiency.
Description
Technical Field
The utility model relates to the technical field of automobile charging, in particular to an electronic lock.
Background
The charging interface of the new energy automobile is usually provided with a locking device to play a role in fixing the charging gun in the charging process. However, the driving device in the traditional electronic lock greatly consumes electric energy and motor moment due to mutual transmission among transmission mechanisms and friction force generated by changing circular motion into linear motion, which not only leads to too short service life of the electronic lock and easy noise generation, but also easily causes abrasion of a motor gear set and unstable driving device of the electronic lock. And, its gear drive mainly adopts the transmission of fixed axis train, and the structure is complicated, and part quantity is too much, and the assembly step is complicated, and the installation accuracy requires highly, and whole assembly process inefficiency is at the same time generally for the speed reduction lock to the electronic lock, can't satisfy the demand of speed increasing lock, and the speed increasing form is more single, and the bearable load of electronic lock is little and wearing and tearing is great. Accordingly, there is a need to provide a new solution to the above-mentioned problems with electronic locks.
Disclosure of Invention
An object of the present utility model is to provide an electronic lock which can be assembled in a small space, and which is simple in structure and convenient to maintain.
An electronic lock, comprising:
a driving device including an output shaft outputting torque;
a speed increasing device comprising a stationary shaft and a primary planetary gear assembly, a final planetary gear assembly disposed on the stationary shaft, and at least one intermediate planetary gear assembly connected to the primary planetary gear assembly and the final planetary gear assembly, respectively;
each stage of planetary gear assembly comprises a sun gear fixedly arranged on the fixed shaft, a plurality of planetary gears meshed with the sun gear and an external rotary gear ring meshed with the planetary gears, wherein the planetary gears are arranged on a planetary carrier, and the output shaft is coaxially connected with the planetary carrier of the primary planetary gear assembly;
an eccentric assembly disposed on the outer rotating ring gear of the final planetary gear assembly; the eccentric assembly comprises an eccentric portion, the axis of which is offset in parallel relative to the rotational axis of the speed increasing device; and
the locking rod is provided with a clamping concave part, and the eccentric part is connected with the clamping concave part in a matching way;
the driving device drives the eccentric part to rotate through the speed increasing device so as to drive the lock rod to reciprocate.
Preferably, the direction of the reciprocating motion is perpendicular to the axial direction of the output shaft.
Preferably, the eccentric assembly further comprises a rotating part, wherein the axis of the rotating part coincides with the rotating axis of the speed increasing device, and the rotating part is connected with the eccentric part through a connecting part.
Preferably, the connection part includes a first connection part and a second connection part perpendicular to the rotation part and the eccentric part at the same time, and the first connection part and the second connection part are disposed at a distance.
Preferably, a distance between the first connection portion and the second connection portion is larger than a width of the engagement recess.
Preferably, the rotating part and the eccentric part are cylindrical, and the diameter of the rotating part is larger than that of the eccentric part.
Preferably, the external rotating ring gear includes a flat plate portion provided perpendicular to an axis of the output shaft and an annular ring gear portion provided on the flat plate portion, the flat plate portion being connected with the carrier of an adjacent next stage.
Preferably, the opening of the ring gear is disposed toward the output shaft, and the connecting shaft is disposed in a space formed around the ring gear portion.
Preferably, the output power of the driving device is 0.5W to 40W.
Preferably, the transmission ratio of the driving device and the eccentric assembly is 1/5-96/125.
The utility model has the following beneficial effects:
1. according to the electronic lock, the sun gear is fixed, the planetary carrier is arranged to be in active transmission, and the external rotary gear ring is a primary planetary gear assembly, an intermediate planetary gear assembly and a 3-stage speed increasing device consisting of a final planetary gear assembly, so that the effect of 3-stage speed increasing is achieved; the transmission structure has small volume, compact structure, stable motion, larger transmission ratio, large bearing capacity and high transmission efficiency.
2. The electronic lock adopts an eccentric structure, so that the electronic lock can bear larger load; the electronic lock is favorable for lubrication, has less abrasion, greatly improves the unlocking efficiency of the electronic lock, and can achieve the purposes of reinforcing, expanding stroke, realizing remote transmission and the like.
3. The electronic lock is connected with the next-stage planet carrier in series by arranging the flat plate part on one side of the rotary gear ring, and has the advantages of simple structure, convenience in manufacturing and cost saving.
Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
FIG. 1 is a schematic cross-sectional view of an electronic lock according to the present utility model;
FIG. 2 is a schematic diagram of the operation of the planetary gear assembly of the electronic lock of the present utility model;
FIG. 3 is a schematic view of an electronic lock shaft according to the present utility model;
FIG. 4 is a schematic view of the structure of the planet carrier of the electronic lock of the present utility model;
FIG. 5 is a schematic view of the eccentric assembly of the electronic lock of the present utility model;
fig. 6 is a schematic structural view of the electronic lock lever of the present utility model.
The figures are marked as follows:
1-driving device, 2-speed increasing device, 21-fixed shaft, 211-positioning part, 212 fixed rod,
22 a-primary planetary gear assembly, 22 b-primary planetary gear assembly,
22 c-primary planetary gear assembly, 23-sun gear, 24-planet gears, 25-externally rotating ring gear,
251-annular ring gear part, 252-flat plate part, 253-open end face, 26-planet carrier, 261-plane, 27-carrier body, 28-connecting shaft, 29-outer surface, 3-eccentric assembly, 31-eccentric part,
32-rotation part, 33-first connection part, 34-second connection part, 4-lock lever, 41-card and recess.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
As shown in fig. 1, an electronic lock includes:
a drive device 1, the drive device 1 including an output shaft outputting torque;
a speed increasing device 2, said speed increasing device 2 comprising a fixed shaft 21 and a primary planetary gear assembly 22a, a final planetary gear assembly 22c, and at least one intermediate planetary gear assembly 22b connected to said primary planetary gear assembly 22a and said final planetary gear assembly 22c, respectively, provided on said fixed shaft 21;
each stage of planetary gear assembly comprises a sun gear 23 fixedly arranged on the fixed shaft 21, a plurality of planetary gears 24 meshed with the sun gear 23, and an external rotary gear ring 25 meshed with the planetary gears 24, wherein the planetary gears 24 are arranged on a planetary carrier 26, and the output shaft is coaxially connected with the planetary carrier 26 of the primary planetary gear assembly 22 a;
an eccentric assembly 3, said eccentric assembly 3 being disposed on said outer rotating ring gear 25 of said final planetary gear assembly 22 c; the eccentric assembly 3 comprises an eccentric portion 31, the axis of the eccentric portion 31 being offset in parallel with respect to the rotation axis of the speed raising device 2; and
a lock lever 4, wherein the lock lever 4 is provided with an engaging concave portion 41, and the eccentric portion 31 is connected with the engaging concave portion 41 in a matching manner;
the driving device 1 drives the eccentric part 31 to rotate through the speed increasing device 2 so as to drive the lock rod 4 to reciprocate.
The speed increasing device 2 includes a fixed shaft 21 and a primary planetary gear assembly 22a, an intermediate planetary gear assembly 22b, and a final planetary gear assembly 22c provided on the fixed shaft 21.
The planetary gear assembly connected to the output shaft through the carrier 26 is defined as a primary planetary gear assembly 22a, the planetary gear assembly connected to the eccentric assembly 3 is defined as a final planetary gear assembly 22c, the planetary gear assembly intermediate the primary planetary gear assembly 22a and the final planetary gear assembly 22c is an intermediate planetary gear assembly 22b, and the number of intermediate planetary gear assemblies 22b is at least 1.
In the present embodiment, the speed increasing device 2 is composed of 3-stage planetary gear assemblies, i.e., the number of intermediate planetary gear assemblies 22b is 1. Thus, at least 3 steps up can be achieved.
Specifically, each stage of planetary gear assembly comprises a stationary shaft 21, a planet carrier 26, a sun gear 23, a plurality of planet gears 24, and an external rotating ring gear 25; one non-fixed end of the fixed shaft 21 sequentially passes through the rotating part 32 of the eccentric assembly 3 and the sun gear 23 of each stage of planetary gear assembly, and fixes the sun gear 23 on the fixed shaft 21, and the fixed shaft 21 is fixed on a shell of the electronic lock, so that the fixed shaft is fixed, and the sun gear 23 is fixed.
In order to realize the fixation of the fixed shaft 21, the fixed shaft 21 is designed to be composed of a fixed rod 212 and a positioning part 211, the positioning part 211 is arranged at one end of the fixed rod 212 to form the fixed shaft 21 with a T-shaped structure, the fixed rod 212 and the positioning part 211 can be cylindrical or rectangular in section, the positioning part 211 is fixed on a shell installed by the electronic lock to realize the fixation of the fixed shaft 21 and further realize the fixation of the sun gear 23, the fixed rod 211 passes through the rod 3 and the sun gear 23 of the planetary gear assembly of each stage to ensure that the sun gear 23 of the planetary gear assembly of each stage is fixed on the fixed rod 211, and the sun gear 23 and the fixed shaft 21 can be fixed in an interference fit mode or a key connection or a positioning pin and other fixing modes, which are not specifically described herein, so long as the fixation of the sun gear 23 is realized.
In the present embodiment, the number of the planetary gears 24 is 3, and the fixed lever 212 and the positioning portion 211 are rectangular in cross section.
In some embodiments, the planet carrier 26 is used as an input body of the present stage planetary gear assembly, so that the planet carrier 26 of the primary stage planetary gear assembly 22a is coaxially connected with the output shaft, that is, the carrier body 27 is coaxially connected with the output shaft, in order to realize that the planet carrier 26 can be connected with the planet gears, a connecting shaft 28 correspondingly connected with each planet gear 24 is arranged on one side of the carrier body 27, which faces to the external rotating gear ring 25, in order to ensure that the carrier body 27 is connected with the output shaft, a hole (not shown in the figure) connected with the output shaft is arranged in the center of the carrier body 27, in order to realize that the planet gears 24 realize self rotation with the sun gear 23, the planet gears 24 are movably connected with the connecting shaft 28 through bearings (not shown in the figure), and when the connecting shaft 28 drives the planet gears 24 to revolve along the external rotating gear ring 25, the planet gears 24 mesh with the sun gear 23 to realize that the planet gears 24 rotate around the connecting shaft 28.
In this embodiment, 3 planetary gears 24 are uniformly distributed around the sun gear 23, so the carrier body 27 is designed as a triangular plate, the connecting shaft 28 is disposed at each corner of the triangular plate, and the axis of the connecting shaft 28 is parallel to the rotation axis of the sun gear 23, so that the structure of the planetary carrier 26 is simple and attractive.
By setting the specific structure of the carrier body 27, the carrier body 27 is used as an input body of the present-stage planetary gear assembly, thereby realizing the series connection of the multistage planetary gear assemblies.
The speed increasing principle of the speed increasing device 2 is as follows: the sun gear 23 is fixedly arranged, the planet carrier 26 is active, and the external rotating gear ring 25 is passive, so that an output shaft of the driving device 1 is connected with the planet carrier 26 of the primary planetary gear assembly 22a, the planet carrier 26 drives the external rotating gear ring 25 to rotate through the planet gears 24, the transmission mode that the external rotating gear ring 25 is connected with the planet carrier 26 of the next adjacent planetary gear assembly sequentially transmits rotation to the final planetary gear assembly 22c, the eccentric assembly 3 is arranged on the external rotating gear ring 25 of the final planetary gear assembly 22c, the driving device 1 drives the eccentric assembly 3 to rotate through the speed increasing device 2, and the eccentric part 31 of the eccentric assembly 3 is connected with the clamping concave part 41 in a matched mode so as to drive the lock rod 4 to reciprocate.
In the present embodiment, the transmission sequence of the speed increasing device 2 is: the output shaft of the driving device 1 is connected with a planet carrier 26 of the primary planetary gear assembly 22a to drive the planet carrier 26 to rotate, the planet carrier 26 is connected with a plurality of planet gears 24 to drive the planet gears 24 to rotate, the plurality of planet gears 24 realize the rotation and revolution of the plurality of planet gears 223 by being meshed with a sun gear 23 and an external rotary gear ring 25, so that the external rotary gear ring 25 is driven to rotate to realize the rotation of the primary planetary gear assembly 22 a; the outer rotary ring gear 25 of the primary planetary gear assembly 22a is connected to the planet carrier 26 of the intermediate planetary gear assembly 22b such that the planet carrier 26 serves as the input of the present stage to effect rotation of the intermediate planetary gear assembly 22b, and the outer rotary ring gear 25 of the intermediate planetary gear assembly 22b is connected to the planet carrier 26 of the final planetary gear assembly 22c to effect rotation of the final planetary gear assembly 22c. Thus, the manner of transmission of the multi-stage planetary gear assembly is determined.
Therefore, by setting the planet carrier 26 as active transmission, the plurality of planet gears 24 are respectively meshed with the sun gear 23 and the external rotary gear ring 25, so that the planet gears 24 can rotate and revolve, and the planetary gear assembly of the planet gears can achieve the function of speed increase; the transmission structure has small volume, compact structure, stable motion, large transmission ratio, large bearing capacity and high transmission efficiency.
Specifically, in order to convert the rotational motion of the speed raising device 2 into the linear motion of the lock rod 4, the eccentric structure which can bear a larger load, is favorable for lubrication, has smaller abrasion and greatly improves the unlocking efficiency of the electronic lock is adopted to realize the reciprocating linear motion of the lock rod 4, so that the eccentric assembly 3 is arranged on the external rotary gear ring 25 of the final planetary gear assembly 22c, the eccentric assembly 3 comprises an eccentric part 31, and the lock rod 4 is provided with a clamping concave part 41 which is in matched connection with the eccentric part.
In the present embodiment, the driving device 1 is a motor.
In another embodiment, the drive device 1 is a hydraulic motor.
Preferably, the direction of the reciprocating motion is perpendicular to the axial direction of the output shaft.
It will be appreciated that the rotational movement of the output shaft is changed to a linear movement by the eccentric assembly 3 connected by the speed raising means 2, the eccentric portion 31 of the eccentric assembly 3 being matingly connected with the catching recess 41 of the lock lever 4.
In this embodiment, the direction of the reciprocating motion is perpendicular to the axis direction of the output shaft, avoiding output force loss.
Preferably, the eccentric assembly 3 further comprises a rotating part 32, an axis of the rotating part 32 coincides with a rotation axis of the speed increasing device 2, and the rotating part 32 is connected with the eccentric part 31 through a connecting part.
Preferably, the connection part includes a first connection part 33 and a second connection part 34 perpendicular to the rotation part and the eccentric part at the same time, and the first connection part 33 and the second connection part 34 are spaced apart.
Preferably, the interval between the first connection portion 33 and the second connection portion 34 is larger than the width of the engaging recess 41.
Preferably, the rotating part 31 and the eccentric part 32 are cylindrical, and the diameter of the rotating part 31 is larger than that of the eccentric part 32.
Specifically, in order to make the eccentric assembly 3 realize the conversion of the rotational motion into the linear motion while avoiding the excessively complex structure thereof, the eccentric assembly 3 further comprises a rotating part 31 for rotation, in order to avoid the loss of the output force, the inventor designs the axis of the rotating part 32 to coincide with the rotation axis of the speed-raising device 2, connects the eccentric part 31 and the rotating part 32 into a whole through a connecting part, the connecting part comprises a first connecting part 33 and a second connecting part 34 which are perpendicular to the eccentric part 31 and the rotating part 32 at the same time, and in order to ensure the connection strength between the eccentric part 31 and the rotating part 32, the first connecting part 33 and the second connecting part 34 are arranged at intervals, and meanwhile, the eccentric assembly 3 can be used for achieving the purposes of reinforcing, expanding the stroke, realizing the long-distance transmission and the like.
In the present embodiment, in order to ensure that the engaging concave portion 41 does not interfere with the first connecting portion 33 and the second connecting portion 34 when the eccentric portion 31 and the engaging concave portion 41 are connected in a matched manner, the inventors designed the interval between the first connecting portion 33 and the second connecting portion 34 to be larger than the width of the engaging concave portion 41.
More specifically, in order to ensure that the stress generated when the eccentric portion 31 reciprocates the lock lever 4 does not cause breakage of the connection portions of the first and second connection portions 33 and 34 and the rotating portion 31, the width of the connection ends of the first and second connection portions 33 and 34 and the rotating portion 31 is designed to be larger than the width of the connection ends with the eccentric portion 32, so the diameter of the rotating portion 31 is designed to be larger than the diameter of the eccentric portion 32. Thereby, the strength of the rotating portion 31 is ensured also in order to increase the areas of the first connecting portion 33 and the second connecting portion 34.
Preferably, the external rotating ring gear 25 includes a flat plate portion 252 provided perpendicular to the axis of the output shaft and an annular ring gear portion 251 provided on the flat plate portion 252, the flat plate portion 252 being connected to the carrier 26 of the next adjacent stage.
Preferably, the opening of the ring gear 251 is disposed toward the output shaft, and the connecting shaft is disposed in a space formed around the ring gear portion 251.
Specifically, in order to realize the fixation of the sun gear 23, the carrier 26 drives, and the external rotating ring gear 25 is driven to accelerate, so that when considering the driving of the next planetary gear, the external rotating ring gear 25 needs to be connected with the carrier 26 of the next adjacent stage, so that the inventor designs the structure of the external rotating ring gear 25 into the combination of the flat plate part 252 and the annular ring gear part 251, the flat plate part 252 is connected with the carrier 26 of the next adjacent stage, thus forming that the opening of the annular ring gear part 251 is arranged towards the output shaft, and the connecting shaft 28 is positioned in the space of the annular ring gear part 251. The annular ring gear portion 251 and the flat plate portion 252 may be integrally formed, or may be separately designed as two separate parts, and then the annular ring gear portion 251 and the flat plate portion 252 may be fixedly connected as a unit.
In some embodiments, the planet gears 24 may be provided in the inner space of the annular ring gear portion 251 so long as they do not interfere with the flat plate portion 251.
In the present embodiment, the outer surface 29 of the planet wheel 23 is designed to be flush with the open end face 253 of the annular ring gear portion 251, which is both easy and aesthetically pleasing to install.
Preferably, the output power of the driving device is 0.5W to 40W.
Specifically, the output power of the driving device 1 is 0.5W to 40W. The output power of the driving device 1 determines the working speed of the electronic lock, the higher the power is, the faster the electronic lock completes the work, the lower the power is, the slower the electronic lock completes the work, and even the locking work of the lock rod 4 cannot be completed. In order to test the influence of output power on the operation of the electronic lock, the inventor performs relevant tests, the test method is to select driving devices 1 with different output powers, other structures of the electronic lock are the same, each driving device 1 continuously works for 1 minute, the number of times of completing the operation of the electronic lock is recorded, the number of times is more than or equal to 40 and is qualified, and the number of times is less than 40 and is not qualified. If abnormal sound occurs during the operation of the electronic lock, the electronic lock is regarded as unqualified. The results are shown in Table 1.
Table 1: influence of different output power on electronic lock speed and abnormal sound
| Power (W) | 0.4 | 0.5 | 1 | 5 | 8 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 |
| Number of completions | 38 | 40 | 51 | 67 | 72 | 85 | 98 | 107 | 115 | 126 | 130 | 138 | 138 |
| Whether or not to make abnormal sound | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Whether or not | Is that |
As shown in table 1, when the output power of the driving apparatus 1 is less than 0.5W, the number of times of switching the electronic lock is completed in 1 minute is less than 40, and the speed is too slow to be acceptable, so the inventors selected the minimum power of the driving apparatus 1 to be 0.5W. When the output power of the driving device 1 is greater than 40W, the electronic lock is influenced by the overall design, the speed enters the bottleneck period without obvious improvement, and abnormal sound can occur at the same time, so that the output power of the driving device 1 selected by the inventor is 0.5W-40W. Specifically, it may be 0.5W, 1W, 5W, 8W, 10W, 15W, 20W, 25W, 30W, 35W, 40W, etc.
Preferably, the transmission ratio of the driving device 1 and the eccentric assembly 3 is 1/5-96/125.
Specifically, the transmission ratio of the driving device 1 to the eccentric assembly 3 is 1/5-96/125, the transmission ratio=the driving wheel rotation speed/the driven wheel rotation speed, and the inverse ratio of the transmission ratio to the driven wheel rotation speed can be seen from the formula, namely, the smaller the transmission ratio, the larger the rotation speed of the driven wheel is, and the larger the rotation speed of the driven wheel is, the abnormal sound is likely to occur due to inaccurate control. Therefore, the inventors selected different transmission ratios of the driving device 1 and the eccentric assembly 3 for testing, observed that the number of times of completion of the locking or unlocking operation of the lock lever 4 within 1 minute was less than 40 times, and failed, and the abnormal sound occurred, and the results are shown in table 2.
Table 2: influence of the transmission ratio of the drive 1 and the eccentric assembly 3 on the speed of the electronic lock
As can be seen from table 2, if the transmission ratio of the driving device 1 to the eccentric assembly 3 is greater than 96/125, the electronic lock is failed because the locking or unlocking operation completed within 1 minute is less than 40 times; meanwhile, after the transmission ratio of the driving device 1 and the eccentric assembly 3 is smaller than 1/5, abnormal sound can occur to the electronic lock and the electronic lock is disqualified, so the inventor selects the transmission ratio of the driving device 1 and the rod piece 3 to be 1/5-96/125.
The working principle of the electronic lock is described in detail below with reference to fig. 1 to 6: the motor 1 is started, the output shaft rotates to drive the planet carrier 26 of the primary planetary gear assembly 22a to rotate, the planet carrier 26 is driven to drive the planet gears 24 to rotate, the planet gears 24 are meshed with the sun gear 23 and the external rotary gear ring 25 to achieve rotation and revolution, rotation is transmitted to the external rotary gear ring 25 meshed with the planet gears 24, the planet carrier 26 of the intermediate planetary gear assembly 22b is connected with the external rotary gear ring 25 of the primary planetary gear assembly 22a and drives the planet gears 24 of the intermediate planetary gear assembly 22b to rotate, the planet gears 24 are meshed with the sun gear 23 and the external rotary gear ring 25 to achieve self-assembling and revolution, the external rotary gear ring 25 of the intermediate planetary gear assembly 22b is further connected with the planet carrier 26 of the final planetary gear assembly 22c and drives the planet gears 24 to rotate, the planet gears 24 are meshed with the sun gear 23 and the external rotary gear ring 25 to achieve rotation and revolution, the external rotary gear ring 25 of the final stage is further driven to drive the eccentric part 31 of the eccentric assembly 3 to rotate, the eccentric part 31 is connected with the clamping concave part 41 of the lock rod 4 in a matched mode, and the rotation is converted into linear motion to achieve unlocking or unlocking of the lock rod 4.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (10)
1. An electronic lock, comprising:
a driving device including an output shaft outputting torque;
a speed increasing device comprising a stationary shaft and a primary planetary gear assembly, a final planetary gear assembly disposed on the stationary shaft, and at least one intermediate planetary gear assembly connected to the primary planetary gear assembly and the final planetary gear assembly, respectively;
each stage of planetary gear assembly comprises a sun gear fixedly arranged on the fixed shaft, a plurality of planetary gears meshed with the sun gear and an external rotary gear ring meshed with the planetary gears, wherein the planetary gears are arranged on a planetary carrier, and the output shaft is coaxially connected with the planetary carrier of the primary planetary gear assembly;
an eccentric assembly disposed on the outer rotating ring gear of the final planetary gear assembly; the eccentric assembly comprises an eccentric portion, the axis of which is offset in parallel relative to the rotational axis of the speed increasing device; and
the locking rod is provided with a clamping concave part, and the eccentric part is connected with the clamping concave part in a matching way;
the driving device drives the eccentric part to rotate through the speed increasing device so as to drive the lock rod to reciprocate.
2. The electronic lock of claim 1, wherein the direction of the reciprocation is perpendicular to the axial direction of the output shaft.
3. The electronic lock of claim 1, wherein the eccentric assembly further comprises a rotating portion, an axis of the rotating portion coincides with a rotational axis of the speed increasing device, and the rotating portion and the eccentric portion are connected by a connecting portion.
4. The electronic lock of claim 3, wherein the connection portion includes a first connection portion and a second connection portion perpendicular to the rotation portion and the eccentric portion at the same time, the first connection portion and the second connection portion being disposed at a spacing.
5. The electronic lock of claim 4, wherein a spacing between the first connection portion and the second connection portion is greater than a width of the engagement recess.
6. The electronic lock of claim 3, wherein the rotating portion and eccentric portion are cylindrical, and the diameter of the rotating portion is greater than the diameter of the eccentric portion.
7. The electronic lock of claim 1, wherein the external rotary ring gear includes a flat plate portion provided perpendicular to an axis of the output shaft and an annular ring gear portion provided on the flat plate portion, the flat plate portion being connected to the carrier of an adjacent next stage.
8. The electronic lock of claim 7, wherein the opening of the annular ring gear portion is disposed toward the output shaft.
9. The electronic lock of claim 1, wherein the output power of the driving means is 0.5W to 40W.
10. The electronic lock of claim 1, wherein a transmission ratio of the drive means to the eccentric assembly is 1/5-96/125.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320080777.8U CN219492958U (en) | 2023-01-12 | 2023-01-12 | Electronic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320080777.8U CN219492958U (en) | 2023-01-12 | 2023-01-12 | Electronic lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219492958U true CN219492958U (en) | 2023-08-08 |
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ID=87479869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320080777.8U Active CN219492958U (en) | 2023-01-12 | 2023-01-12 | Electronic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219492958U (en) |
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2023
- 2023-01-12 CN CN202320080777.8U patent/CN219492958U/en active Active
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