Novel windscreen wiper for automobile

Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to a novel automobile windscreen wiper which comprises a wiping strip, the wiping strip is fixedly connected with a framework, the framework is rotationally connected to a long rocker arm, the end, away from the framework, of the long rocker arm is fixedly connected with a short rocker arm, and the end, away from the long rocker arm, of the short rocker arm is fixedly connected with a connecting sleeve. The connecting sleeve is in threaded connection to a threaded lead screw, the threaded lead screw is rotationally connected into a water baffle, the connecting sleeve is slidably connected into the water baffle, a driving motor is fixedly connected to the water baffle, the driving motor is in transmission connection with the threaded lead screw, and the driving motor drives the threaded lead screw to rotate; the threaded lead screw rotates to indirectly push the connecting sleeve and the scraping piece on the connecting sleeve to conduct linear scraping motion, the front windshield of the automobile can be completely and cleanly scraped, a driver can obtain a clearer and wider visual field, no blind area is generated, and driving safety is better facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a new type of automobile windshield wiper. Background Art

[0002] The wiper is a plate-type structure installed in front of the car windshield. The wiper is driven by an electric motor to perform arc-shaped reciprocating motion to sweep away rain, snow and dust on the windshield that obstructs the view.

[0003] Because the area cleaned by the existing wiper is fan-shaped, two wiper blades are often used to increase the cleaning area. But even if two wiper blades are added, the fan-shaped area still has a blind spot that cannot be cleaned, and the driver's field of vision cannot be well guaranteed. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of automobile wiper to solve the problems raised in the above background technology.

[0005] A new type of automobile wiper comprises a scraper strip, which is fixedly connected to a frame, and the frame is rotatably connected to a long rocker arm, and the end of the long rocker arm away from the frame is fixedly connected to a short rocker arm, and the end of the short rocker arm away from the long rocker arm is fixedly connected to a connecting sleeve, and the connecting sleeve is threadedly connected to a threaded screw, and the threaded screw is rotatably connected in a water baffle, and the connecting sleeve is slidably connected in the water baffle, and a driving motor is fixedly connected in the water baffle, and the driving motor is drivingly connected to the threaded screw.

[0006] Preferably, the water baffle plate is arc-shaped, a water baffle pipe is provided inside the water baffle plate, a long groove is opened in the axial direction of the water baffle pipe, the threaded screw is rotatably connected in the water baffle pipe, the drive motor is fixedly connected to one end inside the water baffle pipe, the output shaft of the drive motor is transmission-connected to one end of the threaded screw, and a fixed bearing is fixed to the other end of the threaded screw, and the fixed bearing is fixed in the water baffle pipe.

[0007] Furthermore, the driving motor and the threaded screw are connected via a reducer.

[0008] Furthermore, the connecting sleeve is a U-shaped structure, one end of the connecting sleeve is provided with a threaded groove, the thread is threadedly connected to the threaded screw, one end of the threaded groove of the connecting sleeve extends into the groove, so that the connecting sleeve is slidably limited on the water retaining pipe.

[0009] Furthermore, a tension spring is provided between the short rocker arm and the long rocker arm.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a threaded connection between the lead screw and the connecting sleeve, and adjusts the rotation of the motor to the linear motion of the connecting sleeve, so that the scraper blade indirectly connected to the connecting sleeve can move in a straight line, and the scraper blade is reciprocated to scrape the front windshield of the car by controlling the forward and reverse rotation of the motor. The scraper blade is arranged perpendicular to the moving direction, so that the scraper blade can scrape a rectangular area, and this rectangular area is almost the same as the front windshield of the car. Compared with traditional wipers, the scraping area is increased, thereby greatly eliminating the blind spot of the brush hanging, and improving the safety of driving the vehicle in rainy and snowy weather.

[0011] The water retaining pipe half surrounds the threaded screw. In addition, there is a water retaining plate outside the water retaining pipe to prevent rainwater and mud from invading the screw and affecting the normal operation of the wiper. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure between the connecting sleeve and the long rocker arm in the utility model;

[0014] Figure 3 It is a schematic diagram of the connection structure between the tension spring and the long rocker arm and the short rocker arm in the utility model;

[0015] Figure 4 This is a schematic diagram of the internal structure of the water retaining plate in the utility model;

[0016] Figure 5 It is a schematic diagram of the internal structure of the water retaining pipe in the utility model.

[0017] In the figure: 1. scraper bar; 2. frame; 3. long rocker arm; 4. short rocker arm; 41. pull rod; 42. tension spring; 5. connecting sleeve; 6. water retaining pipe; 61. threaded screw; 62. driving motor; 63. reducer; 64. slot; 65. fixed bearing; 7. water retaining plate. DETAILED DESCRIPTION

[0018] The following will be combined with specific embodiments and attached Figure 1-5 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0019] A new type of automobile wiper comprises a scraper strip 1. The scraper strip 1 is a prior art. The scraper strip 1 comprises a hard connecting handle and a flexible scraper strip 1. The scraper strip 1 is generally made of rubber or silicone to facilitate cleaning of automobile windshields. The scraper strip 1 is fixedly connected to a skeleton 2. The skeleton 2 is also a prior art. The skeleton 2 has a certain plasticity and can be slightly deformed without being damaged. A long rocker arm 3 is rotatably connected to the other side of the skeleton 2. A connecting block is rotatably connected to the skeleton 2. The connecting block penetrates the skeleton 2 and the connecting block through a rotating shaft to realize rotational connection between the two. The other end of the connecting block is fixedly connected to one end of the long rocker arm 3 by bolts to realize rotational connection between the long rocker arm 3 and the skeleton 2, thereby increasing the scope of application of the utility model and enabling the utility model to be used on automobiles with different inclination angles of the front windshields.

[0020] One end of the long rocker arm 3 away from the connecting block is rotatably connected to a short rocker arm 4. The long rocker arm 3 and the short rocker arm 4 are penetrated together by a pin shaft, so as to realize the rotatable connection between the long rocker arm 3 and the short rocker arm 4. A pull rod is provided on the short rocker arm 4. The pull rod is arranged parallel to the pin shaft. A C-shaped connecting piece 41 is provided on the pull rod. A tension spring 42 is provided on the other side of the connecting piece 41. The connecting piece 41 hooks the pull rod and the tension spring respectively. The other end of the tension spring 42 is fixed to the middle part of the long rocker arm 3. When the long rocker arm 3 and the short rocker arm 4 are in the same line, When in the state, the tension of the tension spring 42 can make the long rocker arm 3 generate a pulling force to rotate toward the side where the scraper strip 1 is located, so that the scraper strip 1 can be close to the front windshield after the utility model is installed on the car. Applying a force away from the car windshield to the long rocker arm 3 can make the long rocker arm 3 rotate and lift the scraper strip 1 from the windshield to facilitate the replacement of the scraper strip 1. The above-mentioned related structure of the long rocker arm 3, the short rocker arm 4 and the tension spring 42 is the prior art, and is currently a commonly used structure for making the car wiper close to the windshield.

[0021] The end of the short rocker arm 4 away from the long rocker arm 3 is fixedly connected to a connecting sleeve 5, and the outer structure of the connecting sleeve 5 presents a U-shaped structure. A connecting hole is provided at one end of the connecting sleeve 5, and the short rocker arm 4 is inserted into the connecting hole and fixedly connected by bolts. The other end of the connecting sleeve 5 is slidably connected to the inside of a water retaining pipe 6, and the water retaining pipe 6 is axially provided with a slot 64. The end of the connecting sleeve 5 away from the short rocker arm 4 is slidably connected in the slot 64, and a threaded screw 61 is rotatably connected in the water retaining pipe 6. A fixed bearing is sleeved on one end of the threaded screw 61, and the other end is fixedly connected to the output shaft of a reducer 63. The input shaft of the reducer 63 is fixedly connected to the output shaft of a drive motor 62, so that the drive motor 62 can control the rotation of the threaded screw 61, and the reducer 63 can adjust the output ratio of the drive motor 62 to the threaded screw 61, thereby adjusting the rotation speed of the threaded screw 61. The reducer 63 is a prior art. A threaded hole is provided at one end of the connecting sleeve 5 located in the water retaining pipe 6, and the threaded hole is sleeved on the threaded screw 6 1, and is threadedly connected with the threaded screw 61. A reciprocating ball is arranged in the threaded hole of the connecting sleeve 5. The connecting sleeve 5 and the threaded screw 61 together constitute a ball screw structure. The ball screw is a prior art. The use of the ball screw can convert the rotation of the screw into a linear motion of the connecting sleeve 5. Compared with similar worm gears, the friction is small, the transmission efficiency is high, and the precision is also high. The size of the slot 64 in the water retaining pipe 6 is slightly larger than the end of the connecting sleeve 5 with the threaded hole, so that the connecting sleeve 5 can slide smoothly in the water retaining pipe 6. At the same time, because it is penetrated and limited by the threaded screw 61, it will not be able to escape from the slot 64. The threaded screw 61 and the connecting sleeve 5 are threadedly connected. When the threaded screw 61 rotates, because the connecting sleeve 5 cannot rotate synchronously, the connecting sleeve 5 will move along the axial direction of the threaded screw 61 under the action of the thread. The moving direction of the connecting sleeve 5 can be controlled by controlling the rotation direction of the drive motor 62, and then the scraper strip 1 is controlled to scrape the front windshield of the car reciprocatingly, thereby realizing the cleaning or dewatering of the front windshield of the car.

[0022] A water baffle plate 7 is also provided on the outside of the water baffle pipe 6. The water baffle plate 7 is a curved plate with an arc of about 90°, and its two ends are closed. The water baffle pipe 6 is fixedly connected in the water baffle plate 7. The water baffle plate 7 can further prevent the reservation from invading the water baffle pipe 6 and affecting the transmission. During installation, the water baffle plate 7 needs to be fixedly connected above the front windshield of the automobile. The utility model is arranged from top to bottom, which can enable the scraper strip 1 to scrape the entire front windshield and increase the scraping area. Therefore, the blind spot of the brush is greatly eliminated, and the safety of driving the vehicle in rainy and snowy weather is improved.

[0023] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0024] In the present utility model, "up", "down", "left", "right", "front" and "back" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0025] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A new type of automobile wiper, comprising a wiper strip, characterized in that: The scraper strip is fixedly connected to a skeleton, the skeleton is rotatably connected to a long rocker arm, the end of the long rocker arm away from the skeleton is fixedly connected to a short rocker arm, the end of the short rocker arm away from the long rocker arm is fixedly connected to a connecting sleeve, the connecting sleeve is threadedly connected to a threaded screw, the threaded screw is rotatably connected in a water baffle, the connecting sleeve is slidably connected in the water baffle, the water baffle is fixedly connected to a drive motor, and the drive motor is transmission connected to the threaded screw.

2. A novel automobile wiper according to claim 1, characterized in that: The water baffle plate is arc-shaped, and a water baffle pipe is arranged inside the water baffle plate. The water baffle pipe is provided with a long groove along the axial direction. The threaded screw is rotatably connected in the water baffle pipe, and the drive motor is fixedly connected to one end inside the water baffle pipe. The output shaft of the drive motor is transmission-connected to one end of the threaded screw, and a fixed bearing is fixed to the other end of the threaded screw, and the fixed bearing is fixed in the water baffle pipe.

3. A novel automobile wiper according to claim 2, characterized in that: The driving motor and the threaded screw are connected via a speed reducer.

4. A novel automobile wiper according to claim 3, characterized in that: The connecting sleeve is a U-shaped structure, one end of which is provided with a thread groove, the thread is threadedly connected to the threaded screw, and one end of the thread groove of the connecting sleeve extends into the groove, so that the connecting sleeve is slidably limited on the water retaining pipe.

5. A novel automobile windshield wiper according to claim 4, characterized in that: A tension spring is arranged between the short rocker arm and the long rocker arm.

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