CN203902483U

CN203902483U - Windshield wiper

Info

Publication number: CN203902483U
Application number: CN201420301390.1U
Authority: CN
Inventors: 沈贤波
Original assignee: Ningbo Sunshine Traffic Equipment Co Ltd
Current assignee: Ningbo Sunshine Traffic Equipment Co Ltd
Priority date: 2014-06-08
Filing date: 2014-06-08
Publication date: 2014-10-29
Anticipated expiration: 2024-06-08

Abstract

The utility model provides a windshield wiper which comprises a windshield wiper body, a shell, a worm gear, a connecting rod, an outer sleeve, an inner sleeve and a rotating shaft. The worm gear is installed in the shell in a rotatable mode, a motor is fixed outside the shell, the output end of the motor is provided with a worm, the worm is meshed with the worm gear, the outer sleeve is installed in the shell in a rotatable mode, the inner sleeve is sleeved with the outer sleeve in a rotatable mode, blind holes are evenly formed in the inner wall of the outer sleeve in the circumferential direction, springs and steel balls are arranged in the blind holes, locating holes corresponding to the blind holes are formed in the lateral wall of the inner sleeve, the depths of the locating holes are smaller than the radii of the steel balls, the steel balls are clamped in the locating holes, the connecting rod is hinged to the end face of the worm gear in a rotatable mode, a hinge base is fixed on the lateral wall of the outer sleeve, the end of the connecting rod is hinged to the hinge base, the rotating shaft is fixed in the inner sleeve, the head of the rotating shaft extends out of the shell, and the windshield wiper body is fixed at the head of the rotating shaft. By means of the windshield wiper, torsion limitation is achieved, the windshield wiper body is accordingly protected, and the service life is prolonged.

Description

Rain brush

Technical field

The utility model relates to a kind of rain brush, particularly a kind of rain brush with torsion restriction.

Background technology

Rain brush be for brushing except being attached to raindrop in vehicle windscreen and the equipment of dust, to improve the visbility of steerman, increase traffic safety.Rain brush in use can crank motion, when velocity of rotation is too fast, is subject to force of inertia effect, can affect rain brush rotating shaft, if things go on like this, can time rotating shaft distortion, reduce the clean-up performance of rain brush, reduced service life simultaneously.

Utility model content

(1) technical matters that will solve

The technical problems to be solved in the utility model is to overcome deficiency of the prior art, thereby a kind of rain brush with torsion restriction protection rain brush body is provided.

(2) technical scheme

For solving the problems of the technologies described above, the utility model provides a kind of rain brush, comprise rain brush body 1, housing 2, worm gear 3, pipe link 4, outer tube 5, inner sleeve 6 and rotating shaft 7, described worm gear 3 is arranged in described housing 2 rotationally, the outer motor that is fixed with of described housing 2, the mouth of described motor is provided with worm screw 8, described worm screw 8 extend in described housing 2 and with the tooth mesh of described worm gear 3, described outer tube 5 is arranged in described housing 1 rotationally, and the pivot center of described outer tube 5 is parallel with the pivot center of described worm gear, described inner sleeve 6 is set in described outer tube 5 rotationally, the inwall of described outer tube 5 is circumferentially evenly equipped with blind hole 51, in described blind hole 51, be provided with spring and steel ball, the sidewall of described inner sleeve 6 offers the knock hole 61 corresponding with described blind hole 51, the degree of depth of described knock hole 61 is less than the radius of described steel ball, described steel ball is fastened in described knock hole 61, described pipe link 4 is hinged on the end face of described worm gear 3 rotationally, the sidewall of described outer tube 5 is fixed with hinged seat 52, the end of described pipe link 4 is hinged on described hinged seat 52, described rotating shaft 7 is fixed in described inner sleeve 6, and the head of described rotating shaft 7 extends to outside described housing 2, described rain brush body 1 is fixed on the head of described rotating shaft 7.

Further, the inwall of described inner sleeve 6 forms female splines, and the sidewall of described rotating shaft 7 is provided with the male splines corresponding with described female splines.

Further, between described rotating shaft 7 and described housing 2, be provided with plain bearing 9.

Further, described blind hole 51 is circumferentially uniform and be axially equally distributed on the inwall of described outer tube 5.

Further, described blind hole 51 is circumferentially evenly equipped with six and be axially equidistantly provided with two rows.

Further, described worm screw 8 is between described outer tube 5 and described worm gear 3.

(3) beneficial effect

The utility model rain brush, when the swing speed of rain brush body is too fast, high pulling torque makes steel ball overcome the effect of spring force and inside and outside cover is produced relative rotation, thereby plays the object of protection rain brush rotating shaft, cleaning performance and the service life of having improved rain brush.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model rain brush;

Fig. 2 is the structural representation of the inner sleeve of the utility model rain brush;

Fig. 3 is the structural representation of the pipe link of the utility model rain brush.

The specific embodiment

Consult Fig. 1～Fig. 3, the utility model provides a kind of rain brush, comprise rain brush body 1, housing 2, worm gear 3, pipe link 4, outer tube 5, inner sleeve 6 and rotating shaft 7, worm gear 3 is arranged in housing 2 rotationally, and be fixed with motor outside housing 2, mouth at motor is provided with worm screw 8, this worm screw 8 extend in housing 2 and with the tooth mesh of worm gear 3, be used for driving worm gear 3 to rotate, outer tube 5 is arranged in housing 1 rotationally, and the pivot center of this outer tube 5 is parallel with the pivot center of worm gear, inner sleeve 6 is set in outer tube 5 rotationally, inwall at outer tube 5 is circumferentially evenly equipped with blind hole 51, in this blind hole 51, be provided with spring and steel ball, sidewall at inner sleeve 6 offers the knock hole corresponding with this blind hole 51 61 simultaneously, and the degree of depth of this knock hole 61 is less than the radius of steel ball, steel ball is fastened in this knock hole 61, pipe link 4 is hinged on the end face of worm gear 3 rotationally, sidewall at outer tube 5 is fixed with hinged seat 52, the end of pipe link 4 is hinged on hinged seat 52, rotating shaft 7 is fixed in inner sleeve 6, and the head of this rotating shaft 7 extends to outside housing 2, rain brush body 1 is fixed on the head of rotating shaft 7, for the ease of installing and improving operation stability, at the inwall of inner sleeve 6, form female splines, the sidewall in rotating shaft 7 is provided with the male splines corresponding with female splines simultaneously, in the present embodiment, between rotating shaft 7 and housing 2, be provided with plain bearing 9, more even in order to exert all one's strength, in the present embodiment, blind hole 51 is circumferentially uniform and be axially equally distributed on the inwall of outer tube 5, preferred, and blind hole 51 is circumferentially evenly equipped with six and be axially equidistantly provided with two rows, in order to improve the compact of structure, the worm screw 8 in the present embodiment is between outer tube 5 and worm gear 3.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a rain brush, it is characterized in that: comprise rain brush body (1), housing (2), worm gear (3), pipe link (4), outer tube (5), inner sleeve (6) and rotating shaft (7), described worm gear (3) is arranged in described housing (2) rotationally, the outer motor that is fixed with of described housing (2), the mouth of described motor is provided with worm screw (8), described worm screw (8) extend in described housing (2) and with the tooth mesh of described worm gear (3), described outer tube (5) is arranged in described housing (1) rotationally, and the pivot center of described outer tube (5) is parallel with the pivot center of described worm gear, described inner sleeve (6) is set in described outer tube (5) rotationally, the inwall of described outer tube (5) is circumferentially evenly equipped with blind hole (51), described blind hole is provided with spring and steel ball in (51), the sidewall of described inner sleeve (6) offers the knock hole (61) corresponding with described blind hole (51), the degree of depth of described knock hole (61) is less than the radius of described steel ball, described steel ball is fastened in described knock hole (61), described pipe link (4) is hinged on the end face of described worm gear (3) rotationally, the sidewall of described outer tube (5) is fixed with hinged seat (52), the end of described pipe link (4) is hinged on described hinged seat (52), described rotating shaft (7) is fixed in described inner sleeve (6), and the head of described rotating shaft (7) extends to outside described housing (2), described rain brush body (1) is fixed on the head of described rotating shaft (7).

2. rain brush as claimed in claim 1, is characterized in that: the inwall of described inner sleeve (6) forms female splines, and the sidewall of described rotating shaft (7) is provided with the male splines corresponding with described female splines.

3. rain brush as claimed in claim 1, is characterized in that: between described rotating shaft (7) and described housing (2), be provided with plain bearing (9).

4. rain brush as claimed in claim 1, is characterized in that: described blind hole (51) is circumferentially uniform and be axially equally distributed on the inwall of described outer tube (5).

5. rain brush as claimed in claim 4, is characterized in that: described blind hole (51) is circumferentially evenly equipped with six and be axially equidistantly provided with two rows.

6. rain brush as claimed in claim 1, is characterized in that: described worm screw (8) is positioned between described outer tube (5) and described worm gear (3).