CN112158167A - Anti-damage transmission structure of windscreen wiper - Google Patents
Anti-damage transmission structure of windscreen wiper Download PDFInfo
- Publication number
- CN112158167A CN112158167A CN202011052758.1A CN202011052758A CN112158167A CN 112158167 A CN112158167 A CN 112158167A CN 202011052758 A CN202011052758 A CN 202011052758A CN 112158167 A CN112158167 A CN 112158167A
- Authority
- CN
- China
- Prior art keywords
- output shaft
- fixed
- movable tooth
- wiper
- windscreen wiper
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/16—Means for transmitting drive
- B60S1/18—Means for transmitting drive mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a damage-resistant transmission structure of a windscreen wiper, which comprises a windscreen wiper driving device and a rocker arm connected with the power output end of the windscreen wiper driving device, wherein the power output end of the windscreen wiper driving device is connected with a first output shaft, the rocker arm is fixedly connected to a second output shaft, a movable tooth structure and a fixed tooth structure which can be matched with each other to enable the first output shaft and the second output shaft to be coaxially fixed are respectively arranged on the first output shaft and the second output shaft, a spring piece structure used for pushing the movable tooth structure to keep the movable tooth structure at a matching position with the fixed tooth structure is arranged in the first output shaft, and the spring piece structure has an elastic deformation amount capable of deforming towards the direction away from the axis center of the first output shaft. In the stage of vehicle model development or the stage of commercial vehicle operation, when the windscreen wiper is abnormally operated by external factors (such as manual operation of the wiper arm, foreign matter pressing of the wiper arm and the like), the windscreen wiper can follow external input load to perform advanced or advanced action relative to a normal windscreen wiper output shaft, and the inside cannot be damaged.
Description
Technical Field
The invention relates to the technical field of automobile windscreen wiper structures, in particular to a windscreen wiper damage-resistant transmission structure.
Background
The automobile windscreen wiper is a key part of an automobile, and directly influences the safety and real automobile experience of a user. In the analysis process of the automobile type market problems, a plurality of windscreen wipers run in a frozen state, and a user can easily forcedly pull the wiper arm or the wiper blade by hands when the windscreen wipers do not react, so that the internal structure of a windscreen wiper motor is damaged, and the windscreen wiper motor cannot work normally. The reason for such problems is that the user applies a reverse force to the wiper arm, the input load can force the whole wiper system to move reversely, the input load and the output load of the motor generate contradiction at the structural or strength weak position of the whole wiper system, so that the parts are damaged or permanently deformed and failed, and finally the user can only replace the wiper system for maintenance, so that the maintenance cost is high, the user has poor impression on the vehicle, and the brand image of the vehicle is greatly reduced.
Disclosure of Invention
The invention aims to solve the defects of the background technology, and provides a damage-resistant transmission structure of a windscreen wiper, which can be adaptively deformed along with the force application load of a user and can reduce the maintenance cost by only using a resetting mechanical structure without replacing a windscreen wiper system at the later stage.
In order to achieve the purpose, the invention designs a wiper damage-resistant transmission structure, which comprises a wiper driving device and a rocker arm connected with a power output end of the wiper driving device, and is characterized in that: the power output end of the windscreen wiper driving device is connected with a first output shaft, the rocker arm is fixedly connected onto a second output shaft, a movable tooth structure and a fixed tooth structure which can be matched with each other to enable the first output shaft and the second output shaft to be coaxially fixed are respectively arranged on the first output shaft and the second output shaft, a spring piece structure used for pushing the movable tooth structure to enable the movable tooth structure to be kept at a matching position with the fixed tooth structure is arranged in the first output shaft, and the spring piece structure has an elastic deformation amount capable of deforming towards the direction of the axis far away from the first output shaft.
Furthermore, an axial groove is formed in the top of the first output shaft, the movable tooth structure and the spring piece structure are arranged in the axial groove, the fixed tooth structure is arranged at the bottom of the second output shaft, and the fixed tooth structure is arranged in the axial groove.
Further, the movable tooth structure is fixed in including coaxial movable tooth snap ring and a plurality of movable tooth of axial inslot, the circumference surface interval of movable tooth snap ring is equipped with a plurality of movable tooth draw-in grooves, and is a plurality of the movable tooth sets up respectively in a plurality of in the movable tooth draw-in groove, the outside of movable tooth be provided with spring leaf structure cooperation, messenger the inboard of movable tooth is fixed in the intra-annular of movable tooth snap ring is supported and is pushed away the cooperation structure.
Further, the fixed tooth structure comprises a fixed column coaxially arranged at the bottom of the second output shaft, a plurality of fixed grooves are formed in the fixed column along the circumferential surface of the fixed column at intervals, and the inner sides of the plurality of movable teeth are respectively arranged in the plurality of fixed grooves.
Furthermore, the abutting and pushing matching structure is an abutting and pushing plate arranged on the outer side of the movable teeth, and the width of the abutting and pushing plate is larger than the groove width of the movable tooth clamping groove.
Furthermore, the spring piece structure comprises a spring ring piece coaxially fixed in the axial groove, and the spring ring piece is composed of a plurality of arc-shaped elastic pieces in contact with the abutting and pushing plate.
Further, an output shaft mounting support is fixed on the wiper driving device, the lower end of the second output shaft penetrates through the output shaft mounting support to be coaxially fixed with the first output shaft, and an axial limiting structure for preventing the second output shaft from moving upwards is arranged on the output shaft mounting support.
Furthermore, the axial limiting structure comprises an output shaft mounting hole formed in the output shaft mounting bracket, and the diameter of the widest part of the shaft section of the second output shaft located below the output shaft mounting hole is smaller than the diameter of the output shaft mounting hole.
Furthermore, a bushing is fixed in the output shaft mounting hole, and the inner surface of the bushing is attached to the outer surface of the second output shaft.
Furthermore, the shaft section of the second output shaft above the output shaft mounting hole is a threaded section, one end of the threaded section penetrating through the rocker arm is connected with a nut, and one end of the rocker arm is fixed between the nut and the output shaft mounting bracket.
The invention has the beneficial effects that: in the stage of vehicle model development or the stage of commercial vehicle operation, when the windscreen wiper is abnormally operated by external factors (such as manual operation of the wiper arm, foreign matter pressing of the wiper arm and the like), the windscreen wiper can follow external input load to perform advanced or advanced action relative to a normal windscreen wiper output shaft, and the inside cannot be damaged. After external input is finished, the output shaft can be reassembled to achieve a normal wiper installation state, normal wiping action is started, maintenance cost is greatly reduced, failure rate is reduced, and reliability of products is improved.
Drawings
FIG. 1 is a perspective view of a wiper assembly of the present invention;
FIG. 2 is a perspective view of a drive portion of a wiper assembly of the present invention;
FIG. 3 is a perspective view of the wiper motor of the present invention connected to a first output shaft;
FIG. 4 is a perspective view of FIG. 3 at the first output shaft;
FIG. 5 is a perspective view of a second output shaft of the present invention;
FIG. 6 is a perspective view of the driving structure of the wiper motor of the present invention;
FIG. 7 is a perspective view of a second output shaft and output shaft mounting bracket connection structure according to the present invention;
FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;
FIG. 9 is a perspective view of the connecting structure of the swing arm with the second output shaft and the output shaft mounting bracket according to the present invention;
FIG. 10 is a cross-sectional view taken along line B-B of FIG. 9;
FIG. 11 is a transverse cross-sectional view of a normal mating of a fixed tooth structure with a moving tooth structure;
FIG. 12 is a transverse cross-sectional view of an abnormal mating of a fixed tooth structure with a moving tooth structure;
the automobile windscreen wiper comprises a first output shaft, a second output shaft, a windscreen wiper driving device, a rocker arm, a shaft groove, a movable tooth clamping ring, a movable tooth, a fixed column, a fixed groove, a pushing plate, a spring ring piece, an output shaft mounting bracket, a bush, a bushing, a nut, a scraping arm assembly and a connecting rod, wherein the rocker arm is 1-the first output shaft, the second output shaft, the windscreen wiper driving device is 3-the windscreen wiper driving device, the rocker arm is 4-the rocker arm, the axial groove is 5.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The wiper damage-resistant transmission structure shown in fig. 1-12 comprises a wiper driving device 3 and a rocker arm 4 connected with a power output end of the wiper driving device 3, the power output end of the wiper driving device 3 is connected with a first output shaft 1, the rocker arm is fixedly connected to a second output shaft 2, a movable tooth structure and a fixed tooth structure which can be matched with each other to enable the first output shaft 1 and the second output shaft 2 to be coaxially fixed are respectively arranged on the first output shaft 1 and the second output shaft 2, a spring piece structure used for pushing the movable tooth structure to enable the movable tooth structure to be kept at a matching position with the fixed tooth structure is arranged in the first output shaft 1, and the spring piece structure has an elastic deformation amount capable of deforming towards the direction of the axis far away from the first output shaft 1.
The top of the first output shaft 1 is provided with an axial groove 5, the movable tooth structure and the spring piece structure are both arranged in the axial groove 5, the bottom of the second output shaft 2 is provided with a fixed tooth structure, and the fixed tooth structure is arranged in the axial groove 5.
The movable tooth structure includes that coaxial fixed in the movable tooth snap ring 6 and a plurality of movable tooth 7 of axial groove 5, and the circumference surface interval of movable tooth snap ring 6 is equipped with a plurality of movable tooth draw-in grooves, and a plurality of movable tooth 7 set up respectively in a plurality of movable tooth draw-in grooves, and the outside of movable tooth 7 is provided with and cooperates, makes the inboard of movable tooth 7 be fixed in the support of movable tooth snap ring 6 and push away the cooperation structure: the pushing plate 10 is arranged on the outer side of the movable teeth 7, and the width of the pushing plate 10 is larger than the groove width of the movable tooth clamping groove.
Fixed tooth structure includes that the coaxial fixed column 8 that sets up in 2 bottoms of second output shaft, and fixed column 8 is equipped with a plurality of fixed slots 9 along its circumferential surface interval, and a plurality of movable teeth 7 inboards set up respectively in a plurality of fixed slots 9.
The spring piece structure comprises a spring ring piece 11 coaxially fixed in the axial groove 5, and the spring ring piece 11 is composed of a plurality of arc-shaped elastic pieces contacted with the pushing plate 10.
Be fixed with output shaft installing support 12 on windscreen wiper drive arrangement 1, the lower extreme of second output shaft 2 passes output shaft installing support 12 and 1 coaxial fixings of first output shaft, is provided with the axial limit structure who prevents second output shaft 2 drunkenness upwards on output shaft installing support 12: the diameter of the widest part of the shaft section of the second output shaft 2 below the output shaft mounting hole is smaller than the aperture of the output shaft mounting hole. A bush 13 is fixed in the output shaft mounting hole, and the inner surface of the bush 13 is attached to the outer surface of the second output shaft 2.
The shaft section of the second output shaft 2 above the output shaft mounting hole is a threaded section, one end of the threaded section penetrating through the rocker arm 4 is connected with a nut 14, and one end of the rocker arm 4 is fixed between the nut 14 and the output shaft mounting bracket 12.
In the invention, in a normal working state, the fixed groove 9 is in interference fit with the movable tooth 7, the movable tooth 7 is supported by the spring ring plate 11, and then the movable tooth 7 drives the fixed column 8 to move. Within the range of the required working torque, the fixed column 8 generates the tendency or action of compressing the movable tooth 7, and the movable tooth 7 is resisted by the supporting force provided by the spring ring plate 11. When the external input destructive torque exceeds the torque limited by the structure, the fixed column 8 is converted from the external input force to compress the movable teeth 7, the movable teeth 7 enable the spring ring plate 11 to be compressed, and then the fixed column 8 generates relative motion relative to the movable teeth 7. After the external input is finished, the fixed column 8 and the movable tooth 7 are in the meshing state shown in fig. 12, but the relative position change of the fixed column 8 and the movable tooth at the moment shows that the scraping and brushing position on the scraping arm scraper is wrong, and in this case, the nut 14 of the second output shaft 2 only needs to be removed, and the second output shaft 2 is installed again.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a windscreen wiper anti-damage transmission structure, including windscreen wiper drive arrangement (3) and with rocking arm (4) that the power take off end of windscreen wiper drive arrangement (3) is connected, its characterized in that: the power output end of the windscreen wiper driving device (3) is connected with a first output shaft (1), the rocker arm is fixedly connected onto a second output shaft (2), the first output shaft (1) and the second output shaft (2) are respectively provided with a movable tooth structure and a fixed tooth structure which can be matched with each other to enable the first output shaft (1) and the second output shaft (2) to be coaxially fixed, a spring piece structure used for abutting against and pushing the movable tooth structure to enable the movable tooth structure to be kept at a matching position with the fixed tooth structure is arranged in the first output shaft (1), and the spring piece structure has an elastic deformation amount which can deform towards the direction of the axis of the first output shaft (1).
2. The wiper damage-resistant transmission structure of claim 1, characterized in that: the top of first output shaft (1) is opened has axial slot (5), the movable tooth structure with the spring leaf structure all set up in axial slot (5), the bottom of second output shaft (2) is provided with fixed tooth structure, fixed tooth structure set up in axial slot (5).
3. The wiper damage-resistant transmission structure of claim 2, characterized in that: the movable tooth structure is fixed in including the coaxial movable tooth snap ring (6) and a plurality of movable tooth (7) in axial groove (5), the circumference surface interval of movable tooth snap ring (6) is equipped with a plurality of movable tooth draw-in grooves, and is a plurality of movable tooth (7) set up respectively in a plurality of in the movable tooth draw-in groove, the outside of movable tooth (7) be provided with spring leaf structural coordination, messenger the inboard of movable tooth (7) is fixed in support in movable tooth snap ring (6) pushes away the cooperation structure.
4. The wiper damage-resistant transmission structure of claim 3, characterized in that: the fixed tooth structure comprises a fixed column (8) coaxially arranged at the bottom of the second output shaft (2), the fixed column (8) is provided with a plurality of fixed grooves (9) at intervals along the circumferential surface of the fixed column, and the inner sides of the movable teeth (7) are respectively arranged in the fixed grooves (9).
5. The wiper damage-resistant transmission structure of claim 3, characterized in that: the pushing matching structure is a pushing plate (10) arranged on the outer side of the movable tooth (7), and the width of the pushing plate (10) is larger than the groove width of the movable tooth clamping groove.
6. The wiper damage-resistant transmission structure of claim 5, characterized in that: the spring piece structure comprises a spring ring piece (11) coaxially fixed in the axial groove (5), and the spring ring piece (11) is composed of a plurality of arc-shaped elastic pieces in contact with the pushing plate (10).
7. The wiper damage-resistant transmission structure of claim 1, characterized in that: an output shaft mounting support (12) is fixed on the wiper driving device (1), the lower end of the second output shaft (2) penetrates through the output shaft mounting support (12) to be coaxially fixed with the first output shaft (1), and an axial limiting structure for preventing the second output shaft (2) from moving upwards is arranged on the output shaft mounting support (12).
8. The wiper damage-resistant transmission structure of claim 7, characterized in that: the axial limiting structure comprises an output shaft mounting hole formed in the output shaft mounting support (12), and the diameter of the widest part of a shaft section, located below the output shaft mounting hole, of the second output shaft (2) is smaller than the diameter of the output shaft mounting hole.
9. The wiper damage resistant transmission structure of claim 8, characterized in that: a bush (13) is fixed in the output shaft mounting hole, and the inner surface of the bush (13) is attached to the outer surface of the second output shaft (2).
10. The wiper damage resistant transmission structure of claim 9, characterized in that: the shaft section of the second output shaft (2) above the output shaft mounting hole is a threaded section, one end of the threaded section penetrating through the rocker arm (4) is connected with a nut (14), and one end of the rocker arm (4) is fixed between the nut (14) and the output shaft mounting bracket (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011052758.1A CN112158167A (en) | 2020-09-29 | 2020-09-29 | Anti-damage transmission structure of windscreen wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011052758.1A CN112158167A (en) | 2020-09-29 | 2020-09-29 | Anti-damage transmission structure of windscreen wiper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112158167A true CN112158167A (en) | 2021-01-01 |
Family
ID=73860775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011052758.1A Pending CN112158167A (en) | 2020-09-29 | 2020-09-29 | Anti-damage transmission structure of windscreen wiper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112158167A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6026536A (en) * | 1997-10-09 | 2000-02-22 | Lear Automotive Dearborn, Inc | Range limiting dual direction slip clutch |
| FR2936759A1 (en) * | 2008-10-02 | 2010-04-09 | Bosch Gmbh Robert | DRIVEN SHAFT DEVICE AND WINDSCREEN WIPER DRIVE, AND AXIAL FASTENING METHOD FOR A DRIVEN SHAFT |
| CN102123892A (en) * | 2008-08-13 | 2011-07-13 | 罗伯特.博世有限公司 | Windscreen wiper drive |
| CN202783113U (en) * | 2012-08-21 | 2013-03-13 | 东风汽车公司 | Supporting mechanism of wiper blade arm |
| CN107139015A (en) * | 2017-06-02 | 2017-09-08 | 东南大学 | Circumferential transmission adjustable threshold overload protection arrangement |
-
2020
- 2020-09-29 CN CN202011052758.1A patent/CN112158167A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6026536A (en) * | 1997-10-09 | 2000-02-22 | Lear Automotive Dearborn, Inc | Range limiting dual direction slip clutch |
| CN102123892A (en) * | 2008-08-13 | 2011-07-13 | 罗伯特.博世有限公司 | Windscreen wiper drive |
| FR2936759A1 (en) * | 2008-10-02 | 2010-04-09 | Bosch Gmbh Robert | DRIVEN SHAFT DEVICE AND WINDSCREEN WIPER DRIVE, AND AXIAL FASTENING METHOD FOR A DRIVEN SHAFT |
| CN202783113U (en) * | 2012-08-21 | 2013-03-13 | 东风汽车公司 | Supporting mechanism of wiper blade arm |
| CN107139015A (en) * | 2017-06-02 | 2017-09-08 | 东南大学 | Circumferential transmission adjustable threshold overload protection arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101680243B (en) | Closure for vehicles | |
| KR20160054586A (en) | Cam gear and linear drive device comprising said cam gear | |
| EP2670997A2 (en) | Drum brake module which can be operated by electric motor | |
| EP2247866A1 (en) | Actuating device for a friction clutch device and torque transmission device formed by the same | |
| US20050097699A1 (en) | Output shaft assembly, motor apparatus and wiper motor apparatus | |
| CN109236892B (en) | Spring plate type overload protection clutch structure and steering engine | |
| CN112158167A (en) | Anti-damage transmission structure of windscreen wiper | |
| CN1222955A (en) | internal combustion engine starter | |
| JP4109608B2 (en) | Wiper motor | |
| JP2006322466A (en) | Clutch device, motor device and wiper motor | |
| CN209990892U (en) | Novel special derailleur hydraulic pressure parking mechanism of DHT | |
| US9731683B2 (en) | Wiper system having resilient interface assembly for worm-driven reduction gear motor | |
| CN212867235U (en) | Hinge body driving device | |
| EP2647831A2 (en) | Electrical machine and method for manufacturing an electrical machine | |
| CN113183081B (en) | Harmless dismounting device of sealed apron | |
| JP2006308026A (en) | Clutch device, motor device and wiper motor | |
| EP1911992B1 (en) | Movement transmission device, corresponding electrical equipment and automobile | |
| KR20050044301A (en) | Output shaft assembly, motor apparatus and wiper motor apparatus | |
| CN209881571U (en) | Motor rotor axial positioning structure and windscreen wiper motor | |
| CN219953526U (en) | Improved shifting fork for starter | |
| CN209053731U (en) | Automobile start-stop starter | |
| CN213846432U (en) | Gapless motor | |
| KR20050044300A (en) | Clutch device, motor apparatus and wiper system | |
| CN214480104U (en) | Worm loose joint transmission mechanism and refrigerator door opening device comprising same | |
| CN219927666U (en) | Novel integral type brake mechanism |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210101 |