Liftable automobile windscreen wiper mechanism and method

By using electric push rods and locking pin mechanisms in the automotive wiper mechanism, the blades are separated from the front windshield glass, which solves the problem of freezing or melting of the blades in extreme weather, and improves the convenience and safety of operation.

CN119459592AActive Publication Date: 2025-02-18CHERY AUTOMOBILE CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202411904413.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-02-18
Estimated Expiration
2044-12-23

AI Technical Summary

Technical Problem

The existing automotive wiper mechanism is easily frozen or melted in extreme weather, and it is inconvenient to operate manually and has safety risks.

Method used

The electric push rod is used to drive the movable shaft to telescope with respect to the fixed shaft, so as to achieve the lift of the first scraper arm, and lock the first scraper arm and the second scraper arm through a locking pin to ensure that the blade is completely separated from the front windshield glass.

Benefits of technology

Effectively prevent the scraper from being frozen or melted in extreme weather, reducing the need for manual operation and improving the convenience and safety of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119459592A_ABST
    Figure CN119459592A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of automobile windscreen wiper mechanisms, and discloses a liftable automobile windscreen wiper mechanism and a method. The liftable automobile windscreen wiper mechanism comprises a fixed rod, sleeves are arranged at the two ends of the fixed rod, electric push rods are arranged on the outer sides of the sleeves, and fixed rotating shafts are arranged on the inner sides of the sleeves; one end of the fixed rotating shaft sleeves the movable rotating shaft and is clamped with the movable rotating shaft, so that the movable rotating shaft can stretch along the fixed rotating shaft; the end, away from the fixed rotating shaft, of the movable rotating shaft is connected with a first wiping arm, the first wiping arm is connected with a second wiping arm, the second wiping arm is provided with a lock pin, the end, close to the second wiping arm, of the first wiping arm is provided with an inserting opening, one end of a lock pin pull wire is connected with the lock pin, and the other end of the lock pin pull wire penetrates through the inserting opening and the first wiping arm to be away from the first wiping arm and then is connected with the fixed rod. The output end of the electric push rod is matched with the movable rotating shaft through a connecting piece to drive the movable rotating shaft to ascend and descend, the lock pin is inserted into the connecting plug through the lock pin pull wire, the first wiper arm and the second wiper arm are locked, and when the first wiper arm ascends, the second wiper arm is driven to be separated from an automobile front windshield.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of automobile windshield wiper mechanisms, in particular to a liftable automobile windshield wiper mechanism and a method thereof. Background Art

[0002] Automobile wipers are essential components for driving cars, and are used to remove rain, snow and other impurities from the front windshield to ensure a clear view for the driver. The structure of automobile wipers currently on the market is mainly composed of a wiper motor, a rotating shaft, a wiper arm, and a wiper blade. The operation mode is generally that the motor drives the rotating shaft, and then the rotating shaft drives the wiper arm and the wiper blade to rotate, thereby achieving the effect of scraping away rain and cleaning the front windshield. However, in order to make the wiper blade scrape away rain better, the wiper arm is usually designed into two sections, and the two sections are connected by a rotating shaft and a spring in the middle. The purpose is to allow the wiper blade on the second section of the wiper arm to fit tightly with the windshield, so as to achieve the effect of cleaning the liquid and impurities on the front windshield more cleanly when the wiper is in operation. However, the existing automobile wiper mechanism has some shortcomings in design and use. First, in winter snowy weather, if the wiper is not erected, the long-term accumulation of snow may freeze the wiper on the front windshield, causing the wiper to fail to work properly, and the user needs to spend a lot of time to melt the ice on the windshield, which is inefficient and wastes time. Secondly, in hot summer weather, when the car is parked outdoors, the temperature of the windshield will be extremely high. If the rubber scraper blade is still attached to the windshield, it may cause the scraper blade to melt and stick, and even accelerate aging and shorten its service life.

[0003] In response to the above problems, when people park their cars outdoors in snowy weather in winter or hot weather in summer, they usually manually stand up the wiper blades to prevent the windshield from icing and freezing the wiper blades, or to prevent the rubber wiper blades from melting and sticking due to high temperature exposure, which accelerates the aging of the rubber scraper blades and greatly reduces the service life of the rubber scraper strips. However, this method still has certain shortcomings. Manual operation requires the user to get off the car, which is not only inconvenient, but also may pose a safety hazard in some cases. In addition, manual operation is prone to damage to the wiper due to excessive force. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a liftable automobile wiper mechanism and method, which uses an electric push rod to drive the movable rotating shaft to extend and retract relative to the fixed rotating shaft, so as to realize the lifting of the first wiper arm, and at the same time uses a locking pin to lock the first wiper arm and the second wiper arm to realize the lifting function of the wiper arm. The first wiper arm and the second wiper arm are raised together to ensure that the wiper blade is completely separated from the front windshield, thereby preventing the wiper blade from being frozen or melted in extreme weather conditions.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In the first aspect, a liftable automobile wiper mechanism comprises a fixed rod, sleeves are provided at both ends of the fixed rod, an electric push rod is provided on the outer side of the sleeve, and a fixed rotating shaft is provided on the inner side, one end of the fixed rotating shaft is sleeved on the movable rotating shaft and is clamped with the movable rotating shaft so that the movable rotating shaft can be extended and retracted along the fixed rotating shaft; the movable rotating shaft is connected to a first scraper arm at one end away from the fixed rotating shaft, the first scraper arm is connected to a second scraper arm, a locking pin is slidably provided on the second scraper arm, a plug interface is provided at one end of the first scraper arm close to the second scraper arm, one end of a locking pin pull wire is connected to the locking pin, and the other end passes through the plug interface and passes through the first scraper arm and is connected to the fixed rod after being away from the first scraper arm; the output end of the electric push rod cooperates with the movable rotating shaft through a connecting piece to drive the movable rotating shaft to rise and fall, and when the movable rotating shaft is raised, the locking pin is inserted into the plug connector through the locking pin pull wire.

[0007] As a further implementation method, the first scraper arm and the second scraper arm are U-shaped in cross-section, the first scraper arm is provided with a plug connector near one end of the second scraper arm, the plug connector is provided with a through hole to form a plug interface, the second scraper arm is rotatably connected to the first scraper arm through a pin shaft, and a compression spring is provided between the inner sides of the first scraper arm and the second scraper arm.

[0008] As a further implementation, a limiting plate is provided on the inner side of the first scraper arm away from one end of the second scraper arm, and a through hole is provided on the limiting plate for the locking pin pull wire to pass through.

[0009] As a further implementation, one end of the locking pin away from the locking pin pull wire is connected to one end of a reset spring, and the other end of the reset spring is fixedly connected to the inner side of the second scraper arm.

[0010] As a further implementation, a guide plate is provided on the inner side of the second scraper arm, and a hole is opened on the guide plate at a position corresponding to the plug interface for the locking pin to pass through.

[0011] As a further implementation method, an annular protrusion is provided on the outer side of the fixed rotating shaft, and an annular groove is correspondingly provided on the inner side of the sleeve. The annular protrusion cooperates with the annular groove so that the fixed rotating shaft can rotate in the sleeve. The fixed rotating shaft is used to connect the crank connecting rod structure at one end away from the movable rotating shaft, and the inner side of the other end is provided with a slide groove arranged along the length direction. A linear slider is provided on the outer side of one end of the movable rotating shaft, and the end of the movable rotating shaft is inserted into the inner side of the fixed rotating shaft and cooperates with the linear slider through the slide groove.

[0012] As a further implementation method, the connecting member includes a transmission plate arranged on the circumferential side of the movable rotating shaft, the transmission plate is provided with an annular groove, the push rod at the output end of the electric push rod passes through the annular groove, and fixed blocks are provided on the push rods on both sides of the annular groove. The extension and retraction of the push rod drives the movable rotating shaft to extend and retract through the fixed block and the transmission plate.

[0013] As a further implementation, the electric push rod is connected to an in-vehicle control system.

[0014] As a further implementation method, it also includes a temperature sensor for detecting the temperature of the front windshield of the car. The temperature sensor is connected to the control system. When the detected temperature is not within the set range, the electric push rod is controlled to drive the wiper mechanism to rise.

[0015] In a second aspect, a method for lifting a windshield wiper mechanism of an automobile is characterized by using any of the liftable windshield wiper mechanisms described above, comprising the following steps:

[0016] When it is necessary to raise the automobile wiper mechanism, the electric push rod is actuated, and the movable rotating shaft is driven to rise relative to the fixed rotating shaft through the connecting piece, so that the fixed rod pulls the locking pin pull wire, and the locking pin on the second wiper arm is inserted into the plug interface at the end of the first wiper arm, thereby locking the first wiper arm and the second wiper arm; the wiper blade installed on the second wiper arm can be driven to detach from the front windshield; when the electric push rod drives the movable rotating shaft to descend, the reset spring pulls the locking pin backwards, so that the first wiper arm and the second wiper arm are unlocked, and the wiper blade is pressed against the front windshield.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention uses an electric push rod to drive the movable rotating shaft to extend and retract relative to the fixed rotating shaft, so as to realize the lifting of the first wiper arm. At the same time, the first wiper arm and the second wiper arm are locked by a locking pin to realize the lifting function of the wiper arm. The first wiper arm and the second wiper arm are lifted together to ensure that the wiper blade is completely separated from the front windshield, thereby preventing the wiper blade from being frozen or melted in extreme weather conditions.

[0019] 2. The present invention can lock the wiper arm by means of the lock pin pull wire, the lock pin and the reset spring when the first wiper arm is raised, thereby preventing the second wiper arm from being separated from the front windshield due to the action of the compression spring; and when the first wiper arm is lowered, the wiper arms can be unlocked by means of the reset spring.

[0020] 3. The electric push rod of the present invention is arranged on the outside of the sleeve, and the push rod cooperates with the movable shaft through the transmission plate. The annular groove can ensure that the wiper does not interfere with the push rod when working; the push rod stroke is within a safe range, which can ensure the stable operation of the structure.

[0021] 4. The present invention can also determine whether it is necessary to raise the wipers by detecting the temperature of the front windshield of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] Figure 1 Schematic diagram of a normal state of a windshield wiper mechanism of an automobile according to an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the automobile windshield wiper mechanism in the embodiment of the present invention in the raised state;

[0025] Figure 3 Schematic diagram of a normal state of a car wiper arm according to an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of the wiper arm of a car in a raised state in an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of the internal structure of the telescopic shaft part in an embodiment of the present invention;

[0028] Figure 6 is a schematic structural diagram of a transmission plate in an embodiment of the present invention;

[0029] Figure 7 Schematic diagram of the principle of the automobile windshield wiper mechanism in an embodiment of the present invention;

[0030] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0031] Wherein: 1. first scraper arm, 2. second scraper arm, 3. lock pin pull wire, 4. telescopic rotating shaft, 5. electric push rod, 6. fixed rod, 7. sleeve, 8. crank connecting rod mechanism, 9. limit plate; 11. plug connector, 12. pin shaft, 21. lock pin, 22. return spring, 23. clamping spring, 24. guide plate; 41. fixed rotating shaft, 411. annular protrusion, 42. movable rotating shaft, 421. linear slider, 422. transmission plate, 423. annular groove; 51. push rod, 52. push block, 53. pressure block. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] Embodiment 1

[0034] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 7As shown, a liftable automobile wiper mechanism comprises a fixed rod 6, sleeves 7 are provided at both ends of the fixed rod 6, a telescopic shaft 4 is provided in the sleeve 7, one end of the telescopic shaft 4 is connected to a crank-connecting rod mechanism to realize the rotation of the telescopic shaft 4, and the other end of the telescopic shaft 4 is connected to a wiper arm. An electric push rod 5 is provided on the outer side of the sleeve 7 for driving the telescopic shaft 4 to extend and retract. The wiper arm comprises a first wiper arm 1 and a second wiper arm 2, the first wiper arm is connected to the second wiper arm 2, a locking pin is slidably provided on the second wiper arm 2, a plug interface is provided at one end of the first wiper arm close to the second wiper arm 2, one end of the locking pin pull wire 3 is connected to the locking pin 21, and the other end passes through the plug interface and passes through the first wiper arm 1 and is connected to the fixed rod 6 after being away from the first wiper arm 1; the output end of the electric push rod 5 cooperates with the movable shaft through a connecting piece to drive the movable shaft 42 to rise and fall, and when the movable shaft is raised, the locking pin 21 is inserted into the plug connector through the locking pin pull wire 3 to realize the lifting of the wiper arm.

[0035] like Figure 3 and Figure 4 As shown, the cross-sections of the first scraper arm 1 and the second scraper arm 2 are both U-shaped, and one end of the first scraper arm 1 is hinged with the second scraper arm 2 through a pin 12, wherein the first scraper arm 1 is provided with a plug connector 11 near one end of the second scraper arm 2, and the plug connector 11 is provided with a through hole to form a plug interface, and the plug connector 11 extends to the inner side of the end of the second scraper arm 2. The plug connector 11 and the inner side of the second scraper arm 2 are connected by a compression spring 23, and the end of the second scraper arm 2 away from the first scraper arm 1 is used to connect the scraper blade.

[0036] Under the action of the compression spring 23, the first scraper arm 1 can pull the second scraper arm 2 through the compression spring 23, so that the second scraper arm 2 can drive the scraper blade to be pressed against the front windshield of the car.

[0037] like Figure 1 and Figure 2 , Figure 7 As shown, a fixing rod 6 is provided at the lower end of the front windshield of the automobile, sleeves are provided at both ends of the fixing rod 6, a telescopic shaft 4 is provided in the sleeve 7, one end of the telescopic shaft 4 is connected to the wiper arm, and the other end is connected to a fixed crank-connecting rod mechanism 8, the crank-connecting rod mechanism 8 also includes a driving mechanism, which is located in the middle position of one side of the fixing rod 6, and the corresponding crank and connecting rod form a parallelogram mechanism with the fixing rod 6, and the crank-connecting rod mechanism 8 can drive the telescopic shaft 4 to rotate inside the sleeve, thereby driving the wiper arm to reciprocate. The crank-connecting rod mechanism 8 is a prior art, so it is not described in detail.

[0038] like Figure 5As shown, the telescopic shaft 4 is composed of a two-section structure, including a fixed shaft 41 and a movable shaft 42, wherein the main part of the fixed shaft 41 is located inside the sleeve 7, and the end extends out of the sleeve for connecting the crank-connecting rod mechanism 8. An annular protrusion 411 is provided on the outside of the fixed shaft 41, and an annular groove is provided on the corresponding position of the inner side surface of the sleeve 7. The annular protrusion 411 cooperates with the annular groove, so that the fixed shaft 41 can rotate inside the sleeve 7 under the drive of the crank-connecting rod mechanism 8.

[0039] One end of the fixed shaft 41 away from the crank-connecting rod mechanism 8 is sleeved on the circumference of the bottom end of the movable shaft 42, and the top of the movable shaft 42 is fixedly connected to the end of the first scraper arm 1. A plurality of linear sliders 421 are provided on the circumference of the bottom end of the movable shaft 42. The extension direction of the linear slider 421 is parallel to the axial direction of the telescopic shaft 4. Correspondingly, a plurality of sliding grooves are provided on the inner side of the fixed shaft 41. The end of the movable shaft 42 is inserted into the inner side of the fixed shaft 41 and cooperates with the linear slider 421 through the sliding groove, so that the fixed shaft 41 can drive the movable shaft 42 to rotate through the linear slider 421, and the movable shaft 42 can be extended and retracted relative to the fixed shaft 41 through the sliding groove, thereby realizing the lifting and lowering of the scraper arm.

[0040] like Figure 5 As shown, an electric push rod 5 is disposed outside the sleeve 7 , and the direction of a push rod 51 at the output end of the electric push rod 5 is parallel to the direction of the telescopic shaft 4 .

[0041] like Figure 6 As shown, the connecting member includes a transmission plate 422 fixed on the peripheral side of the movable rotating shaft 42, the transmission plate 422 has a fan-shaped structure, an annular groove 423 is provided on the transmission plate 422, the push rod 51 passes through the annular groove 423 and slides with the annular groove 423, and fixed blocks are provided on the push rods on both sides of the annular groove 423, the fixed blocks are a push block 52 and a pressure block 53, the push rod is extended and retracted through the push block 52 and the pressure block 53 to drive the transmission plate 422 to move, thereby realizing the extension and retraction of the movable rotating shaft 42, and finally realizing the lifting and lowering of the scraper arm.

[0042] In order to achieve that the first scraper arm 1 can drive the second scraper arm 2 to rise while being raised without being affected by the compression spring 23 , the first scraper arm 1 and the second scraper arm 2 should be locked, that is, the hinged relationship between the first scraper arm 1 and the second scraper arm 2 should be locked.

[0043] like Figure 1-Figure 4 As shown, two sets of guide plates 24 are provided inside the second scraper arm 2, and holes are opened on the guide plates 24 for the lock pin 21 to pass through. The lock pin is close to the first scraper arm and connected to one end of the lock pin cable 3. A limit plate 9 is provided inside the first scraper arm away from the second scraper arm, and a through hole is provided on the limit plate 9 for the lock pin cable 3 to pass through. After the lock pin cable 3 passes through the plug interface on the plug connector 11, it extends along the inside of the first scraper arm 1, continues to pass through the through hole on the limit plate 9, and then extends to the fixing rod 6 for fixing.

[0044] like Figure 1 and Figure 2 As shown, when the movable rotating shaft 42 is extended to realize the lifting of the first scraper arm 1, the distance between the first scraper arm 1 and the fixed rod 6 increases, so that the locking pin pull wire 3 can pull the locking pin 21 under the guidance of the guide plate 24. The front end of the locking pin 21 is inserted into the plug connector 11, and the rear end cooperates with the guide plate 24. At this time, when the first scraper arm continues to rise, under the action of the locking pin 21, the hinge relationship between the first scraper arm 1 and the second scraper arm 2 is locked, so that the first scraper arm 1 can drive the scraper blade to rise through the second scraper arm 2 and detach from the front windshield.

[0045] In order to realize that when the first scraper arm 1 is lowered, the end of the lock pin 21 can be withdrawn from the plug connector 11, and one end of the return spring is connected to the end of the lock pin away from the lock pin pull line, and the other end of the return spring is fixedly connected to the inner side of the second scraper arm. When the first scraper arm is lowered, the return spring 22 pulls the lock pin 21 to unlock.

[0046] This embodiment uses an electric push rod to drive the wiper arm to rise, and uses a locking pin to lock the first wiper arm and the second wiper arm, thereby realizing the lifting and lowering function of the wiper arm. During the lifting and lowering process, the wiper can ensure that the wiper blade is separated from the front windshield, thereby coping with different weather conditions.

[0047] It is understandable that the electric push rod can be connected to the control system in the car, and the action of the electric push rod can be controlled by the control system, without getting off the car for manual operation. Furthermore, it also includes a temperature sensor for detecting the temperature of the front windshield of the car. The temperature sensor can be set at a position that is convenient for detecting the temperature of the front windshield. The temperature sensor is connected to the control system. When the temperature detected by the temperature sensor received by the control system is not within the set range, that is, in high and low temperature weather, the control system can automatically control the electric push rod to drive the wiper mechanism to rise. This method can realize the automatic raising of the wiper when the temperature is high during driving, and protect the wiper in time.

[0048] It is understandable that a user interface can be added, and the control system receives user instructions and controls the operation of the motor drive circuit according to the instructions. The interface can be an in-car control panel, a mobile phone APP or other smart device to facilitate user operation. Through the control system, users can easily realize the automatic lifting and lowering function of the wiper, which improves the convenience and safety of use.

[0049] It is understandable that the stroke of the electric push rod is designed to be within a safe range, so that the liftable wiper mechanism can operate stably, reducing potential risks during use.

[0050] Embodiment 2

[0051] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 7As shown, a method for lifting a windshield wiper mechanism of an automobile adopts the liftable windshield wiper mechanism of the first embodiment, comprising the following steps:

[0052] When it is necessary to raise the automobile wiper mechanism, the control system controls the electric push rod 5 to move, and the push rod 51 pushes the transmission plate 422 through the push block 52, and the movable rotating shaft 42 is driven to rise relative to the fixed rotating shaft 41 through the transmission plate 422, thereby driving the first scraper arm 1 to rise, so that the fixed rod 6 can pull the locking pin pull wire, and the locking pin 21 on the second scraper arm 2 is inserted into the plug interface at the end of the first scraper arm 1, so as to realize the locking of the first scraper arm 1 and the second scraper arm 2, and can drive the scraper blade installed on the second scraper arm to detach from the front windshield.

[0053] When the electric push rod 5 drives the movable rotating shaft 42 to descend through the pressure block 53 and the transmission plate 422, the distance between the first scraper arm 1 and the fixed rod 6 is reduced, and the return spring 22 pulls the locking pin 21 backward, so that the first scraper arm 1 and the second scraper arm 2 are unlocked, and the scraper blade is pressed against the front windshield again.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liftable automobile windshield wiper mechanism, characterized in that: It includes a fixed rod, sleeves are provided at both ends of the fixed rod, an electric push rod is provided on the outside of the sleeve, and a fixed rotating shaft is provided on the inside, one end of the fixed rotating shaft is sleeved on the movable rotating shaft and is clamped with the movable rotating shaft so that the movable rotating shaft can be extended and retracted along the fixed rotating shaft; the movable rotating shaft is connected to the first scraper arm at one end away from the fixed rotating shaft, the first scraper arm is connected to the second scraper arm, a locking pin is slidably provided on the second scraper arm, and a plug interface is provided at one end of the first scraper arm close to the second scraper arm, one end of the locking pin pull wire is connected to the locking pin, and the other end passes through the plug interface and passes through the first scraper arm and is connected to the fixed rod after being away from the first scraper arm; the output end of the electric push rod cooperates with the movable rotating shaft through a connecting piece to drive the movable rotating shaft to rise and fall, and when the movable rotating shaft is raised, the locking pin is inserted into the plug connector through the locking pin pull wire.

2. A liftable automobile wiper mechanism according to claim 1, characterized in that: The first scraper arm and the second scraper arm are U-shaped in cross-section. The first scraper arm is provided with a plug connector at one end close to the second scraper arm. The plug connector is provided with a through hole to form a plug interface. The second scraper arm is rotatably connected to the first scraper arm through a pin shaft. A compression spring is provided between the inner sides of the first scraper arm and the second scraper arm.

3. The liftable automobile wiper mechanism according to claim 1, characterized in that: A limiting plate is provided on the inner side of one end of the first scraper arm away from the second scraper arm, and a through hole is provided on the limiting plate for the locking pin pull wire to pass through.

4. A liftable automobile wiper mechanism according to claim 3, characterized in that: One end of the locking pin away from the locking pin pull wire is connected to one end of a reset spring, and the other end of the reset spring is fixedly connected to the inner side of the second scraper arm.

5. A liftable automobile windshield wiper mechanism according to claim 4, characterized in that: A guide plate is provided on the inner side of the second scraper arm, and a hole is opened on the guide plate at a position corresponding to the plug interface for the locking pin to pass through.

6. The liftable automobile windshield wiper mechanism according to claim 1, characterized in that: An annular protrusion is provided on the outside of the fixed rotating shaft, and an annular groove is correspondingly provided on the inner side of the sleeve. The annular protrusion cooperates with the annular groove so that the fixed rotating shaft can rotate in the sleeve. One end of the fixed rotating shaft away from the movable rotating shaft is used to connect the crank connecting rod structure, and the inner side of the other end is provided with a sliding groove arranged along the length direction. A linear slider is provided on the outer side of one end of the movable rotating shaft, and the end of the movable rotating shaft is inserted into the inner side of the fixed rotating shaft and cooperates with the linear slider through the sliding groove.

7. A liftable automobile windshield wiper mechanism according to claim 6, characterized in that: The connecting member includes a transmission plate arranged on the circumference of the movable rotating shaft, the transmission plate is provided with an annular groove, the push rod at the output end of the electric push rod passes through the annular groove, and fixed blocks are provided on the push rods on both sides of the annular groove. The push rod is extended and retracted to drive the movable rotating shaft to extend and retract through the fixed block and the transmission plate.

8. The liftable automobile windshield wiper mechanism according to claim 1, characterized in that: The electric push rod is connected to the in-vehicle control system.

9. A liftable automobile windshield wiper mechanism according to claim 8, characterized in that: It also includes a temperature sensor for detecting the temperature of the front windshield of the car. The temperature sensor is connected to the control system. When the detected temperature is not within the set range, the electric push rod is controlled to drive the wiper mechanism to rise.

10. A method for lifting a windshield wiper mechanism of an automobile, characterized in that: The liftable automobile windshield wiper mechanism as claimed in claim 4 comprises the following steps: When it is necessary to raise the automobile wiper mechanism, the electric push rod is actuated, and the movable rotating shaft is driven to rise relative to the fixed rotating shaft through the connecting piece, so that the fixed rod pulls the locking pin pull wire, and the locking pin on the second wiper arm is inserted into the plug interface at the end of the first wiper arm, thereby locking the first wiper arm and the second wiper arm; the wiper blade installed on the second wiper arm can be driven to detach from the front windshield; when the electric push rod drives the movable rotating shaft to descend, the reset spring pulls the locking pin backwards, so that the first wiper arm and the second wiper arm are unlocked, and the wiper blade is pressed against the front windshield.

Citation Information

Patent Citations

  • Wiper control system and vehicle

    CN108657122A

  • Windscreen wiper

    CN111055812A

  • Hidden front windscreen wiper

    CN118269891A

  • Automatic elevation structure of arm is scraped to stay -supported

    CN207579830U

  • Front windscreen wiper device with self-protection function

    CN213008036U