CN114964750B - Calibration method of driving device capable of detecting lock tongue state of lock body - Google Patents
Calibration method of driving device capable of detecting lock tongue state of lock body Download PDFInfo
- Publication number
- CN114964750B CN114964750B CN202210530628.7A CN202210530628A CN114964750B CN 114964750 B CN114964750 B CN 114964750B CN 202210530628 A CN202210530628 A CN 202210530628A CN 114964750 B CN114964750 B CN 114964750B
- Authority
- CN
- China
- Prior art keywords
- angle
- driving device
- lock body
- angle detection
- detection gear
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a calibration method of a driving device capable of detecting the state of a lock tongue of a lock body, the driving device comprises a motor, the motor is in driving connection with a driving shaft through a first speed reduction assembly, the driving shaft is in driving connection with an angle detection gear which synchronously rotates through a second speed reduction assembly, a rotating cylinder which synchronously rotates and is used for driving the lock body to act is in driving connection with a third transmission assembly, and an angle sensing IC which is used for sensing the position angle of the angle detection gear is also arranged on the driving device; the calibration method comprises an application program capable of communicating with the driving device or an application program built in the driving device, and comprises the following steps: under the prompt of a program, the lock tongue of the lock body is respectively driven to an initial default state, an all-driven state and an all-retracted state, and after each operation is finished, the operation is confirmed, and after each confirmation operation, the driving device marks the angle position of the angle detection gear as the position of the lock tongue corresponding to the state.
Description
Technical Field
The invention relates to a calibration method of a driving device capable of detecting the state of a lock tongue of a lock body.
Background
At present, a common lock body often needs a lock core to rotate for a plurality of circles to complete the whole switching process, and under the condition that the lock body is provided with a driving device, the driving device cannot identify the circle number of the lock core, so that the locking state of a lock tongue of the lock body cannot be determined, and therefore, the driving device can only rotate positively or reversely until the lock body is blocked when driving the lock body to act, so that the driving device cannot accurately drive the lock body, the power consumption of the lock body can be greatly increased, and meanwhile, the service life of the driving device can be influenced by frequent blocking.
Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by the person skilled in the art.
Disclosure of Invention
The invention overcomes the defects of the technology and provides a calibration method of the driving device capable of detecting the state of the lock tongue of the lock body.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the calibration method of a driving device capable of detecting the state of a lock tongue of a lock body, wherein the driving device comprises a motor 1 capable of rotating positively and negatively, the motor 1 is in driving connection with a driving shaft 3 through a first speed reduction assembly 2, the driving shaft 3 is in driving connection with an angle detection gear 5 capable of rotating synchronously through a second speed reduction assembly 4, and is in driving connection with a rotating cylinder 7 capable of rotating synchronously through a third transmission assembly 6, the rotating cylinder 7 is in driving connection with the lock body so as to drive the lock body to act when the rotating cylinder 7 rotates, and an angle sensing IC8 used for sensing the position angle of the angle detection gear 5 so as to reflect the rotation condition of the rotating cylinder 7 through the position of the angle detection gear 5 is also arranged on the driving device;
the calibration method comprises an application program capable of communicating with the driving device or an application program built in the driving device, and comprises the following steps:
the method comprises the steps that under the prompt of an application program, a lock tongue of a lock body is driven to an initial default state and is confirmed after operation is completed, a driving device obtains the position angle A of an angle detection gear 5 through an angle sensing IC8 after the operation is confirmed, the lock tongue of the lock body is calibrated to be in the initial default state when the angle detection gear 5 is positioned at the angle A position, the initial default state of the lock tongue is a state that the dead tongue is retracted into the lock body when the lock tongue is the dead tongue, and the initial default state of the lock tongue is a state that the inclined tongue is naturally reset and popped up when the lock tongue is an elastic reset inclined tongue;
the lock tongue of the lock body is all beaten out under the prompt of an application program and confirmed after the operation is completed, and the driving device acquires the position angle B of the angle detection gear 5 through the angle sensing IC8 after the operation is confirmed and marks that the lock tongue of the lock body is all beaten out when the angle detection gear 5 is positioned at the position of the angle B;
the lock tongue of the lock body is fully retracted under the prompt of an application program and confirmed after the operation is completed, and the driving device acquires the position angle C of the angle detection gear 5 through the angle sensing IC8 after the operation is confirmed and calibrates that the lock tongue of the lock body is fully retracted when the angle detection gear 5 is positioned at the angle C position.
Preferably, the calibration method further comprises the following steps:
n stages of the lock bolts input into the lock body under the prompt of the application program are punched out, if n=1, omitting the following operation, otherwise, carrying out the following operation, sequentially punching out the lock bolts of the lock body to 1-1 stages under the prompt of the application program, sequentially confirming after the operation is completed, and respectively acquiring the position angle D of the angle detection gear through the angle sensing IC8 by the driving device after each confirmation operation 1 To D n-1 And is calibrated when the angle detection gear 5 is in the angular position D 1 To D n-1 When the lock tongue of the lock body is in a 1-n-1 level unlocking state.
Preferably, the second reduction assembly 4 includes a first transmission gear 41 connected to the driving shaft 3 and synchronously rotating, a first reduction gear 42 and a second reduction gear 43 are sequentially meshed between the first transmission gear 41 and the angle detection gear 5, the first reduction gear 42 and the second reduction gear 43 are respectively provided with a large group of teeth and a small group of teeth, and the rotation speeds of the first transmission gear 41, the first reduction gear 42, the second reduction gear 43 and the angle detection gear 5 are sequentially decreased.
Preferably, the third transmission assembly 6 comprises a second transmission gear 61 connected to the driving shaft 3 and synchronously rotating, and a circle of transmission teeth 62 arranged on the outer side surface of the rotating cylinder 7, and a third transmission gear 63 is meshed and transmitted between the second transmission gear 61 and the transmission teeth 62.
Preferably, the rotation ratio of the rotating cylinder 7 to the angle detection gear 5 is 5:1, and each position of the rotating cylinder 7 can correspond to only one angle position of the angle detection gear 5 when the rotation range of the rotating cylinder 7 is within five circles, so that the rotation condition of the rotating cylinder 7 can be judged through the angle position of the angle detection gear 5.
Compared with the prior art, the invention has the beneficial effects that:
1. the motor of the driving device is connected with a driving shaft through a first speed reduction assembly so as to improve torque, the driving shaft is connected with an angle detection gear which is synchronously rotated positively and negatively through a second speed reduction assembly, and a rotating cylinder which is synchronously rotated positively and negatively and is used for driving a lock body to act is connected with a third transmission assembly, so that synchronous rotation can be realized by the angle detection gear and the rotating cylinder, and the rotating speed of the angle detection gear is far slower than that of the rotating cylinder due to the existence of the second speed reduction assembly, so that any position of the rotating cylinder in a multi-circle rotating process in a certain range can correspond to the only one angle position of the angle detection gear, and meanwhile, an angle sensing IC for sensing the position angle of the angle detection gear is further arranged on the driving device.
2. The calibration method only needs to make the lock body lock tongue in a specific state under the prompt of an application program and confirm after finishing operation, the driving device can acquire the position angle information of the angle detection gear in the corresponding state through the angle sensing IC and bind the corresponding angle information with the lock tongue state, so that the accurate control can be realized instead of blind rotation to locked rotation only by acquiring the position angle information of the angle detection gear through the angle sensing IC when the driving device drives the lock body to act, the driving device can sense the state of the lock body lock tongue after calibrating through the calibration method, the accuracy of the driving device for driving the lock body to act can be greatly improved, and meanwhile, the energy consumption of the driving device can be greatly reduced by unnecessary driving actions.
Drawings
FIG. 1 is a schematic diagram of a driving apparatus.
FIG. 2 is a second schematic diagram of the driving apparatus.
Fig. 3 is an exploded view of the driving device.
FIG. 4 is a logic diagram of the calibration method of the present case.
Detailed Description
The following examples are provided to illustrate the features of the present invention and other related features in further detail to facilitate understanding by those skilled in the art:
as shown in fig. 1 to 4, a calibration method of a driving device capable of detecting a lock tongue state of a lock body is provided, the driving device comprises a motor 1 capable of rotating positively and negatively, the motor 1 is in driving connection with a driving shaft 3 through a first speed reduction assembly 2, the driving shaft 3 is in driving connection with an angle detection gear 5 capable of rotating synchronously through a second speed reduction assembly 4, and is in driving connection with a rotating cylinder 7 capable of rotating synchronously through a third transmission assembly 6, the rotating cylinder 7 is in driving connection with the lock body so as to drive the lock body to act when the rotating cylinder 7 rotates, and an angle sensing IC8 for sensing the position angle of the angle detection gear 5 so as to reflect the rotation condition of the rotating cylinder 7 through the position of the angle detection gear 5 is also arranged on the driving device;
the calibration method comprises an application program capable of communicating with the driving device or an application program built in the driving device, and comprises the following steps:
the method comprises the steps that under the prompt of an application program, a lock tongue of a lock body is driven to an initial default state and is confirmed after operation is completed, a driving device obtains the position angle A of an angle detection gear 5 through an angle sensing IC8 after the operation is confirmed, the lock tongue of the lock body is calibrated to be in the initial default state when the angle detection gear 5 is positioned at the angle A position, the initial default state of the lock tongue is a state that the dead tongue is retracted into the lock body when the lock tongue is the dead tongue, and the initial default state of the lock tongue is a state that the inclined tongue is naturally reset and popped up when the lock tongue is an elastic reset inclined tongue;
the lock tongue of the lock body is all beaten out under the prompt of an application program and confirmed after the operation is completed, and the driving device acquires the position angle B of the angle detection gear 5 through the angle sensing IC8 after the operation is confirmed and marks that the lock tongue of the lock body is all beaten out when the angle detection gear 5 is positioned at the position of the angle B;
the lock tongue of the lock body is fully retracted under the prompt of an application program and confirmed after the operation is completed, and the driving device acquires the position angle C of the angle detection gear 5 through the angle sensing IC8 after the operation is confirmed and calibrates that the lock tongue of the lock body is fully retracted when the angle detection gear 5 is positioned at the angle C position.
As described above, the motor 1 of the driving device is driven and connected with the driving shaft 3 through the first reduction assembly 2 so as to improve torque, the driving shaft 3 is driven and connected with the angle detection gear 5 which is synchronously rotated in a positive and reverse direction through the second reduction assembly 4, and the rotating cylinder 7 which is synchronously rotated in a positive and reverse direction is driven and connected with the third transmission assembly 6 so that the angle detection gear 5 and the rotating cylinder 7 can synchronously rotate, and because the second reduction assembly 4 exists, the rotating speed of the angle detection gear 5 is far slower than that of the rotating cylinder 7, any position of the rotating cylinder 7 in a plurality of circles of rotating processes within a certain range can correspond to only one angle position of the angle detection gear 5, and meanwhile, the driving device is also provided with the angle sensing IC8 for sensing the position angle of the angle detection gear 5, so that the rotating condition of the rotating cylinder 7 can be reversely pushed by acquiring the position angle of the angle detection gear 5 so as to sense the state of a lock tongue.
The calibration method only needs to make the lock body lock tongue in a specific state under the prompt of an application program and confirm after finishing the operation, the driving device can acquire the position angle information of the angle detection gear 5 in the corresponding state through the angle sensing IC8 and bind the corresponding angle information with the lock tongue state, so that the position angle information of the angle detection gear 5 can be accurately controlled instead of blind rotation to locked rotation when the driving device drives the lock body to act, the driving device can sense the state of the lock body lock tongue after calibrating by the calibration method, the accuracy of the driving device for driving the lock body to act can be greatly improved, and meanwhile, the energy consumption of the driving device can be greatly reduced due to unnecessary driving action.
As shown in fig. 1 to 4, preferably, the calibration method further includes the steps of:
n stages of the lock bolts input into the lock body under the prompt of the application program are punched out, if n=1, omitting the following operation, otherwise, carrying out the following operation, sequentially punching out the lock bolts of the lock body to 1-1 stages under the prompt of the application program, sequentially confirming after the operation is completed, and respectively acquiring the position angle D of the angle detection gear through the angle sensing IC8 by the driving device after each confirmation operation 1 To D n-1 And is calibrated when the angle detection gear 5 is in the angular position D 1 To D n-1 Lock tongue pair of time lock bodyShould be in the 1 to n-1 stage hit state.
As described above, if the lock tongue of the lock body is provided with multiple stages of locking operations, each stage of locking operations can be independently calibrated through the steps, so that the driving device can drive the lock body in a more diversified manner instead of only performing pure full opening and full closing.
As shown in fig. 1 to 3, preferably, the second reduction assembly 4 includes a first transmission gear 41 connected to the driving shaft 3 and synchronously rotating, a first reduction gear 42 and a second reduction gear 43 are sequentially meshed between the first transmission gear 41 and the angle detection gear 5, the first reduction gear 42 and the second reduction gear 43 are respectively provided with a large group of teeth and a small group of teeth, and the rotation speeds of the first transmission gear 41, the first reduction gear 42, the second reduction gear 43 and the angle detection gear 5 are sequentially decreased, so that the rotation speeds of the angle detection gear 5 can be greatly reduced while the driving shaft 3 and the angle detection gear 5 are synchronously rotated by arranging the first transmission gear 41, the first reduction gear 42 and the second reduction gear 43 between the driving shaft 3 and the angle detection gear 5.
As shown in fig. 1 to 3, preferably, the third transmission assembly 6 includes a second transmission gear 61 connected to the driving shaft 3 and synchronously rotating, a ring of transmission teeth 62 disposed on the outer surface of the rotating drum 7, and a third transmission gear 63 meshed between the second transmission gear 61 and the transmission teeth 62.
As shown in fig. 1 to 3, preferably, the rotation ratio of the rotating cylinder 7 to the angle detection gear 5 is 5:1, and each position of the rotating cylinder 7 can correspond to only one angle position of the angle detection gear 5 when the rotation range of the rotating cylinder 7 is within five circles, so that the rotation condition of the rotating cylinder 7 can be judged by the angle position of the angle detection gear 5.
As described above, the present disclosure protects a calibration method of a driving device capable of detecting the state of a lock tongue of a lock body, and all technical schemes identical or similar to the present disclosure should be shown as falling within the scope of the present disclosure.
Claims (5)
1. The calibration method of the driving device capable of detecting the lock tongue state of the lock body is characterized in that the driving device comprises a motor (1) capable of rotating positively and negatively, the motor (1) is connected with a driving shaft (3) through a first speed reduction assembly (2) in a driving mode, the driving shaft (3) is connected with an angle detection gear (5) capable of rotating synchronously through a second speed reduction assembly (4) in a driving mode, a rotating cylinder (7) capable of rotating synchronously is connected with the driving device through a third transmission assembly (6) in a driving mode, the rotating cylinder (7) is used for being in transmission connection with the lock body so as to drive the lock body to act when the rotating cylinder (7) rotates, and an angle sensing IC (8) used for sensing the position angle of the angle detection gear (5) so as to reflect the rotation condition of the rotating cylinder (7) through the position of the angle detection gear (5) is further arranged on the driving device;
the calibration method comprises an application program capable of communicating with the driving device or an application program built in the driving device, and comprises the following steps:
the method comprises the steps that under the prompt of an application program, a lock tongue of a lock body is driven to an initial default state and is confirmed after operation is completed, a driving device obtains the position angle A of an angle detection gear (5) through an angle sensing IC (8) after the operation is confirmed, the lock tongue of the lock body is calibrated to be in the initial default state when the angle detection gear (5) is positioned at the angle A, the initial default state is a state that the dead tongue is retracted into the lock body when the lock tongue is in the dead tongue state, and the initial default state is a state that the inclined tongue is naturally reset and popped up when the lock tongue is an elastic reset inclined tongue;
the lock tongue of the lock body is all beaten out under the prompt of an application program and confirmed after the operation is completed, and a driving device acquires the position angle B of the angle detection gear (5) through an angle sensing IC (8) after the operation is confirmed and marks that the lock tongue of the lock body is all beaten out when the angle detection gear (5) is positioned at the position of the angle B;
the lock tongue of the lock body is fully retracted under the prompt of an application program and confirmed after the operation is completed, and the driving device acquires the position angle C of the angle detection gear (5) through the angle sensing IC (8) after the operation is confirmed and calibrates that the lock tongue of the lock body is fully retracted when the angle detection gear (5) is positioned at the position of the angle C.
2. The calibration method of a driving device capable of detecting the state of a lock tongue of a lock body according to claim 1, wherein the calibration method further comprises the steps of:
n stages of locking bolts input into the lock body under the prompt of an application program are punched out, if n=1, omitting the following operation, otherwise, carrying out the following operation, sequentially punching out the locking bolts of the lock body to 1-1 stages under the prompt of the application program, sequentially confirming after the operation is completed, and respectively acquiring the position angle D of the angle detection gear at the time by the driving device through the angle sensing IC (8) after each confirmation operation 1 To D n-1 And calibrating the position of the angle detection gear (5) at the angle position D 1 To D n-1 When the lock tongue of the lock body is in a 1-n-1 level unlocking state.
3. The calibration method of the driving device capable of detecting the lock tongue state of the lock body according to claim 1, wherein the second reduction assembly (4) comprises a first transmission gear (41) connected to the driving shaft (3) and synchronously rotating, a first reduction gear (42) and a second reduction gear (43) are sequentially meshed between the first transmission gear (41) and the angle detection gear (5), the first reduction gear (42) and the second reduction gear (43) are respectively provided with a large group of teeth and a small group of teeth, and the rotation speeds of the first transmission gear (41), the first reduction gear (42), the second reduction gear (43) and the angle detection gear (5) are sequentially decreased.
4. The calibration method of the driving device capable of detecting the lock tongue state of the lock body according to claim 1, wherein the third transmission assembly (6) comprises a second transmission gear (61) connected to the driving shaft (3) and synchronously rotating, a circle of transmission teeth (62) arranged on the outer side surface of the rotating cylinder (7), and a third transmission gear (63) is meshed and transmitted between the second transmission gear (61) and the transmission teeth (62).
5. The calibration method of the driving device capable of detecting the lock tongue state of the lock body according to claim 1, wherein the rotation ratio of the rotating cylinder (7) to the angle detection gear (5) is 5:1, and when the rotation range of the rotating cylinder (7) is within five circles, each position of the rotating cylinder (7) can only correspond to one angle position of the angle detection gear (5) so as to judge the rotation condition of the rotating cylinder (7) through the angle position of the angle detection gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530628.7A CN114964750B (en) | 2022-05-16 | 2022-05-16 | Calibration method of driving device capable of detecting lock tongue state of lock body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530628.7A CN114964750B (en) | 2022-05-16 | 2022-05-16 | Calibration method of driving device capable of detecting lock tongue state of lock body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114964750A CN114964750A (en) | 2022-08-30 |
| CN114964750B true CN114964750B (en) | 2023-06-30 |
Family
ID=82982668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210530628.7A Active CN114964750B (en) | 2022-05-16 | 2022-05-16 | Calibration method of driving device capable of detecting lock tongue state of lock body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114964750B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001342769A (en) * | 2000-03-29 | 2001-12-14 | Denso Corp | Door locking apparatus |
| JP2003194539A (en) * | 2001-10-18 | 2003-07-09 | Yazaki Corp | Apparatus for detecting angle of rotation |
| KR200364391Y1 (en) * | 2004-07-07 | 2004-10-08 | 김창수 | Deceleration Gear Idle Rotation Structure |
| CN106639657A (en) * | 2016-11-21 | 2017-05-10 | 歌尔科技有限公司 | Detection device for angular position of rotating shaft of speed reducer of electric lock and electric lock |
| CN108397050A (en) * | 2018-04-25 | 2018-08-14 | 姚舜 | A kind of electronic lock with angle tally function is speed reducer dedicated and its control system |
| JP2019206877A (en) * | 2018-05-30 | 2019-12-05 | 株式会社シブタニ | Slide latch lock |
| CN211287049U (en) * | 2019-09-12 | 2020-08-18 | 肖延安 | Reduction gearbox structure for intelligent door lock |
| CN112013882A (en) * | 2019-05-31 | 2020-12-01 | 罗克韦尔自动化技术公司 | Diagnostic element for statically verifying bolt detection of a safety lockout switch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH702088A2 (en) * | 2009-10-27 | 2011-04-29 | Polycontact Ag | Buckle with a switch arrangement for detecting the locking state. |
| CN212614148U (en) * | 2020-04-02 | 2021-02-26 | 青岛三链锁业有限公司 | Lock with locking bolt driven by speed reducing motor |
| US11408753B2 (en) * | 2020-05-06 | 2022-08-09 | Te-Yu Chen | Lock monitoring device |
-
2022
- 2022-05-16 CN CN202210530628.7A patent/CN114964750B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001342769A (en) * | 2000-03-29 | 2001-12-14 | Denso Corp | Door locking apparatus |
| JP2003194539A (en) * | 2001-10-18 | 2003-07-09 | Yazaki Corp | Apparatus for detecting angle of rotation |
| KR200364391Y1 (en) * | 2004-07-07 | 2004-10-08 | 김창수 | Deceleration Gear Idle Rotation Structure |
| CN106639657A (en) * | 2016-11-21 | 2017-05-10 | 歌尔科技有限公司 | Detection device for angular position of rotating shaft of speed reducer of electric lock and electric lock |
| CN108397050A (en) * | 2018-04-25 | 2018-08-14 | 姚舜 | A kind of electronic lock with angle tally function is speed reducer dedicated and its control system |
| JP2019206877A (en) * | 2018-05-30 | 2019-12-05 | 株式会社シブタニ | Slide latch lock |
| CN112013882A (en) * | 2019-05-31 | 2020-12-01 | 罗克韦尔自动化技术公司 | Diagnostic element for statically verifying bolt detection of a safety lockout switch |
| CN211287049U (en) * | 2019-09-12 | 2020-08-18 | 肖延安 | Reduction gearbox structure for intelligent door lock |
Non-Patent Citations (2)
| Title |
|---|
| 一种智能电子锁的离合装置设计;邱黎升;机电技术(第4期);全文 * |
| 永磁同步电机多开关HALL的微步进标定方法及其矢量控制***;刘建章;刘刚;李光军;;微电机(第10期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114964750A (en) | 2022-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20060279243A1 (en) | Drive for automatic operating of a vehicle door | |
| DE112006002824T5 (en) | Multiple rotation absolute encoder of a geared motor | |
| CN114964750B (en) | Calibration method of driving device capable of detecting lock tongue state of lock body | |
| US20040070189A1 (en) | Vehicle steering apparatus | |
| EP2295938A2 (en) | Multi-tower rotary encoder | |
| CN102493717A (en) | Turntable coded lock core and unlocking method | |
| CN104915711B (en) | Absolute angle counter | |
| CN110920589A (en) | Electronic parking gear self-learning method, electronic parking method, controller and vehicle | |
| CN203669531U (en) | Double-motor driven clutch structure of electronic lock | |
| CN107559456A (en) | Reaction type numeral reversal valve is driven in a kind of | |
| WO2021179585A1 (en) | Parking actuator position learning method | |
| CN1282576C (en) | Vehicle steering apparatus | |
| CN111719958A (en) | Rotation direction sensing device and lockset | |
| CN101575920B (en) | Device for improving theftproof performance of mechanical coded lock | |
| EP1527258B1 (en) | Control device for adjusting the angle of rotation of a camshaft | |
| JP4189953B2 (en) | Position switching control device | |
| CN109591442B (en) | Weighting checking numbering machine for bank note | |
| CN101574703B (en) | Shell course rolling technology | |
| CN207348658U (en) | A kind of door machine structure | |
| CN212295970U (en) | Rotation direction sensing device and lockset | |
| CN203385408U (en) | Phaser locking pin gap detection platform of engine time correction system | |
| KR102395546B1 (en) | Control system for drum-type tool magazine and control method thereof | |
| CN207007485U (en) | A kind of operating mechanism divide-shut brake verifying attachment | |
| CN207161653U (en) | Pin plug differential differential speed reducer | |
| US11901852B2 (en) | Procedure for detecting a transmission backlash in a power tool, in particular a hand-held power tool, and power tool |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |