CN2623534Y - Automobile windscreen wiper - Google Patents

Abstract

The utility model discloses an automobile windscreen wiper, comprising a motor (11) and wipers (8) (13), wherein, a worm-gear box (1) is arranged on the motor; the end of the motor rotating shaft is a worm (3), which is characterized in that: a worm-gear (2) is arranged inside a worm-gear box, the worm-gear fits with the worm at the end of the motor; a transmission shaft is hinged with connecting rods (9) (12) through a crank (10); the connecting rods are respectively hinged with a left and right wiper; two wipers are relatively arranged on an automobile windscreen, and a motor protective circuit is arranged inside the motor. The successful development of the utility model makes the wear degree of the worm-gear and the worm in the worm-gear box low, reduces noise, improves mechanical efficiency, makes the life-span of the automobile wiper improved greatly, and is large in water wiping area, good in effect, strong in vibration resistant wind resistant performance, having good economic benefit and social benefit.

Description

The windshield windshield wiper

[technical field]

The utility model relates to the automobile wiper device, particularly be passenger vehicle Windshield windshield wiper.

[background technology]

In the prior art, the automobile wiper device all is made of motor, windscreen wiper and drop-gear box, gear in this windshield wiper gear case adopts helical wheel and worm screw to cooperate, but because it is a helical wheel, become the some contact with worm screw, it is little to have formed tooth portion area of contact, gear position rapid wear, phenomenon that noise is high in use can appear, and reduced the power of motor, the stability and the service life of whole windshield wiper are reduced, because the linking rod structure of this windshield wiper is unreasonable, all along scraping, it is also less that it scrapes water area on windshield again.And automobile speed of a motor vehicle when running on expressway is fast, and windscreen wiper is subjected to air draught big, causes the windshield wiper power of motor not enough, and long-time the use can burn out the windshield wiper motor.The structure of this windshield windshield wiper can not satisfy palace car particularly in the requirement of running on expressway.

[summary of the invention]

In view of the problem that known technology exists, the purpose of this utility model aims to provide that a kind of to scrape water area big, effective, and antidetonation, wind resistance are strong, and the windshield windshield wiper that can increase the service life.

For achieving the above object, the utility model is finished as follows: this windshield windshield wiper, include motor and left and right sides windscreen wiper, described motor is provided with worm case, the end of described machine shaft is a worm screw, is provided with worm gear in the described worm case, and described worm gear matches with the worm screw of motor end, transmission shaft on the described worm gear is by crank and rod hinge connection, and described connecting rod is hinged with left and right sides windscreen wiper respectively; Described two windscreen wipers are installed on Windshield relatively, form scraping, and be provided with motor protective circuit in motor.

The utility model in worm case, be provided with worm gear and and after the worm screw of motor end matches, the area of contact of worm gear and worm screw is increased, reduced degree of wear, reduced noise, improved the use power of motor, two windscreen wipers have been installed on Windshield in opposite directions, increased windscreen wiper and the connecting rod locating point on windshield, make passenger vehicle when running at high speed, antidetonation, wind resistance have very big reinforcement, and have improved the reliability and stability of windscreen wiper.And increased the water area of scraping of windscreen wiper, and improved and scraped the water effect; Motor protective circuit is set in motor, when broken down in the utility model circuit and mechanical position, can cuts off the electricity supply automatically by this circuit, guarantee that motor can not burnt out, through in-place test, improved three times than prior art its service life.According to the windshield windshield wiper of the utility model design motif made, bring good economic benefit and social effect will for numerous automakers.

[description of drawings]

The utility model has following accompanying drawing:

Fig. 1 is the structural representation of the utility model motor;

Fig. 2 is the match structural representation eye at position of the utility model worm and gear;

Fig. 3 is the structural representation of worm screw for the utility model machine shaft end;

Fig. 4 is the scheme drawing of the utility model worm gear;

Fig. 5 is the cutaway view of the utility model Fig. 4 along A-A;

Fig. 6 is the helical gear scheme drawing of the utility model prior art;

Fig. 7 is the cutaway view of the utility model Fig. 6 along B-B;

Fig. 8 is installed in the structural representation that encloses before the automobile for the utility model prior art wiper;

Fig. 9 is installed in the structural scheme of mechanism that encloses before the automobile for the utility model;

Figure 10 is the scheme drawing of the utility model motor protective circuit.

Wherein, label 6 is a motor housing, 2 ' be the helical wheel of prior art, 7 ' be the axis hole on the helical wheel.

[specific embodiment]

Accompanying drawing has been represented structure of the present utility model and embodiment, is further describing the relevant details of embodiment in conjunction with the accompanying drawings below.This windshield windshield wiper; include motor 11 and left and right sides windscreen wiper 8; 13; described motor 11 is provided with worm case 1; worm gear 2 is installed in the worm case 1; the end of described machine shaft is a worm screw 3; described worm gear 2 matches with the worm screw 3 of machine shaft end; the rotation of machine shaft; drive worm gear 2 transmissions in the worm case 1; described worm gear 2 is equipped with transmission shaft 5 by axis hole 7; and crank 10 is installed on transmission shaft 5; described crank 10 usefulness nuts 4 screw on transmission shaft 5; described crank 10 is by connecting rod 9; 12 respectively with left and right sides windscreen wiper 8; 13 is hinged; two windscreen wipers 8; 13 install on windshield in opposite directions; scrape water area with increase; two windscreen wipers 8; 13 and connecting rod 9; 12 enclose before vehicle body and have five locating points; increased the antidetonation of windshield wiper greatly; wind resistance; in motor 11, be provided with motor protective circuit; the setting of this circuit; excessive when making motor rotation as electric current occurring; temperature is too high; phenomenons such as stall; will cut off the electricity supply automatically, will recover normal behind the trouble-shooting automatically.When the utility model is worked, the rotation of machine shaft, drive worm drive in the worm case, transmission shaft on the worm gear drives crank and rotates, because the connecting rod and the crank of two windscreen wipers are hinged, the rotation of crank makes two windscreen wiper move toward one another with regard to drivening rod, and the rainwater on the windshield is scraped off, it is big that it scrapes water area, effective.The utility model is applicable to passenger vehicle and large-scale palace car, and applying of it has good economic benefit and social benefit, compared with prior art, has substantive distinguishing features and progress.

Claims (3)

1, a kind of windshield windshield wiper, include motor (11) and left and right sides windscreen wiper (8) (13), described motor (11) is provided with worm case (1), the end of described machine shaft is worm screw (3), it is characterized in that being provided with in the described worm case (1) worm gear (2), described worm gear (2) matches with the worm screw (3) of motor end, transmission shaft (5) on the described worm gear (2) is hinged by crank (10) and connecting rod (9) (12), and described connecting rod (9) (12) is hinged with left and right sides windscreen wiper (8) (13) respectively.

2, windshield windshield wiper according to claim 1 is characterized in that described left and right sides windscreen wiper (8) (13) installation in opposite directions on windshield.

3, windshield windshield wiper according to claim 1 and 2 is characterized in that being provided with motor protective circuit in the described motor.

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