A device for effectively brushing rain in a large speed windshield concave case

Abstract

The present application belongs to the technical field of helicopters, and particularly relates to a device for effectively brushing rain in the case of a large-speed windshield recess. A plurality of rain brushing mechanisms are arranged on two sections of a brushing beam, and two adjacent rain brushing mechanisms are hinged. Any rain brushing mechanism comprises a brush piece assembly and a brush arm assembly. The brush arm assembly adopts a telescopic V-shaped support arm structure, which is formed by hinging two sections of telescopic support arms together. One end of the two sections of telescopic support arms is hinged together, and the other end is fixed on the brushing beam respectively. The upper end of the brush piece assembly is rotationally connected to the hinged part of the two sections of telescopic support arms through a vertical and horizontal hinge. A plurality of brush balls are arranged at the lower end of the brush piece assembly for cleaning the windshield glass. In the case of a windshield recess, the rain brushing plate of the rain brush can always effectively adhere to the windshield glass, thereby achieving the purpose of effectively removing rain.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of helicopters, and particularly relates to a device for effectively brushing rain in the case of concave windscreen at high speed. BACKGROUND

[0002] Due to the requirements of high-speed, high-maneuvering flight and combat and the requirement of night anti-dazzling, the windscreen of a certain type of helicopter at the current stage is planar, which is completely different from the arc-shaped windscreen used by ordinary transport helicopters or cars. The planar windscreen is in a planar state during normal flight, but when the helicopter flies at high speed and high maneuverability, the planar windscreen will be deformed to a certain extent. For example, when flying at high speed, the planar windscreen will be concave. If the conventional wiper structure is used, the wiper cannot closely adhere to the glass, and the rainwater cannot be brushed clean, which affects the flight vision. In view of this, for this type of helicopter, a new wiper structure needs to be designed to adapt to the deformation of the windscreen in different flight scenarios. SUMMARY

[0003] The purpose of the application is to design a structure that can effectively brush rain in the case of concave windscreen at high speed, and the rain brushing plate of the wiper with self-adaptive compensation capability can always effectively adhere to the windscreen in the case of concave windscreen, so as to achieve the purpose of effective rain removal.

[0004] Technical scheme: A device for effectively brushing rain in the case of concave windscreen at high speed, a plurality of rain brushing mechanisms are arranged on two brush beams, and two adjacent rain brushing mechanisms are hinged; any rain brushing mechanism comprises a wiper blade assembly and a wiper arm assembly, the wiper arm assembly adopts a telescopic V-shaped support arm structure, the V-shaped support arm structure is formed by hinging two telescopic support arms together, one end of the two telescopic support arms is hinged together, and the other end is fixed on the brush beam; the upper end of the wiper blade assembly is rotationally connected to the hinge between the two telescopic support arms; a plurality of brush balls are arranged at the lower end of the wiper blade assembly for cleaning the windscreen.

[0005] Further, the telescopic V-shaped support arm structure comprises a spring neutral rod, a spring, a spring guide cylinder and a brush handle, one end of the spring guide cylinder is fixed on the brush beam, and the other end is provided with a brush handle through hole; the spring neutral rod is arranged in the spring guide cylinder, one end of the spring neutral rod is fixed on the brush beam, and the other end is a free end, the spring is sleeved on the spring neutral rod, one end of the spring abuts against the brush beam, and the other end abuts against the base of the brush handle, and the other end of the brush handle is rotationally connected to one end of the vertical hinge after passing through the through hole of the spring guide cylinder.

[0006] Further, the length of the spring is greater than the length of the spring neutral rod, so as to ensure that the brush handle has a certain movement space in the spring guide cylinder.

[0007] Further, the vertical and horizontal hinge is a double-eared structure perpendicular to each other, the upper double-eared is connected with the brush handle of the V-shaped support arm structure through a rotating shaft, and the lower double-eared is rotatably connected with the upper end of the brush piece assembly through a rotating shaft.

[0008] Further, the brush piece assembly comprises a triangular plate, a brush piece fixing plate and a plurality of elliptical brush balls, the triangular plate is vertically fixed on the brush piece fixing plate, and the plurality of elliptical brush balls are adhered on the brush piece fixing plate.

[0009] Further, the elliptical brush ball is made of soft rubber and has the characteristic of easy deformation, and the drum edge is arranged in the longitudinal direction.

[0010] Further, the elliptical brush balls are arranged in two columns and staggered on the brush piece fixing plate.

[0011] Further, in the brush rain mechanism arranged on the brush beam, every three constitutes a group and is arranged in a straight line, and the brush beam above the brush rain mechanism in the middle position is fixed through the brush body fixing device.

[0012] In the above-mentioned brush rain device, the left and right two brush arm assemblies are hinged into a V-shaped assembly; the V-shaped assembly can make the final functional structure brush piece assembly have damping force and displacement adjustment ability in a certain range in the transverse displacement, so as to compensate for the deformation of the windshield glass in the vertical direction and more closely fit the windshield glass; at the same time, the triangular plate is vertically fixed on the brush piece fixing plate 13, and the elliptical brush balls are adhered on the brush piece fixing plate, and the three together constitute a brush piece assembly, which can be stably hinged on the vertical and horizontal hinge through the triangular structure, can be rotated longitudinally through the horizontal hinge, and is beneficial to compensate for the deformation of the windshield glass and fit the windshield glass.

[0013] Compared with the traditional windshield wiper, the brush piece assembly is divided into three sections, which are a middle section and two side sections, and the main purpose of the division is to make the brush piece assembly more flexible to deal with different deformation conditions of the windshield glass at different positions, so as to more efficiently compensate for the deformation of the windshield glass and fit the windshield glass.

[0014] The elliptical brush ball is made of soft rubber and has the characteristic of easy deformation, and the drum edge is arranged in the longitudinal direction, so that the easy deformation characteristic can be fully exerted under the mutual extrusion of the brush balls arranged in the longitudinal direction. The brush ball can be stretched and deformed vertically through longitudinal extrusion in the most serious extrusion place, which is beneficial to compensate for the deformation of the windshield glass and fit the windshield glass. The principle is that the most serious extrusion place of the brush ball is often the place where the windshield glass is deformed outward, and the place where the windshield glass is deformed inward is beneficial to the vertical stretching and deformation of the brush ball, so that the deformation of the brush ball compensates for the deformation of the windshield glass.

[0015] Beneficial technical effects: 1) The part position, size and connection mode of the application are reasonably designed and meet the mechanical principle;

[0016] 2) The three-section structure is adopted, the rain brushing ability under the concave condition of the windshield glass is improved through the compensation effect of six dimensions: the brush arm assembly is a V-shaped assembly with a compensation spring, the brush piece assembly is divided into three sections and each section can rotate through horizontal and vertical hinges, the brush is an elliptical brush ball and is arranged staggeredly;

[0017] 3) The device has strong adaptability and can cope with the flight of a helicopter in a rain environment at a large speed of 160-220km / h. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall schematic diagram of the application;

[0019] Figure 2 is the schematic diagram of the middle section rain brushing mechanism in the application;

[0020] Figure 3 is the schematic diagram of the side section rain brushing mechanism in the application;

[0021] Among them, 1 is a brush body fixing device; 2 is a brush beam; 3 is a spring neutral rod; 4 is a spring; 5 is a spring guide cylinder; 6 is a clamping shoulder; 7 is a brush handle top plate; 8 is a brush handle; 9 is a vertical pin; 10 is a vertical and horizontal hinge; 11 is a horizontal pin; 12 is a triangular plate; 13 is a brush piece fixing plate; 14 is an elliptical brush ball. DETAILED DESCRIPTION

[0022] The technical solutions of the application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0023] The application specifically designs a device for effectively brushing rain under the condition of a large speed windshield concave, which arranges a plurality of rain brushing mechanisms on two brush beams, and two adjacent rain brushing mechanisms are hinged; any rain brushing mechanism includes a brush piece assembly and a brush arm assembly, the brush arm assembly adopts a telescopic V-shaped support arm structure, the V-shaped support arm structure is formed by hinging two telescopic support arms together, one end of the two telescopic support arms is hinged together, and the other end is fixed on the brush beam respectively; the upper end of the brush piece assembly is rotationally connected with the hinge connection place of the two telescopic support arms through a vertical and horizontal hinge; a plurality of brush balls are arranged at the lower end of the brush piece assembly for cleaning the windshield glass. Of course, according to the area of the windshield glass, the number of rain brushing mechanisms can be adaptively increased or reduced, see the drawings. Figure 1For example, in a specific design, the wiper device includes a middle segment structure and two edge segment structures, i.e., three wiper mechanisms in a same straight line are specifically designed; the two edge segment structures are consistent with the middle segment structure in structure except that no wiper body fixing device 1.

[0024] The middle segment structure mainly includes a wiper body fixing device 1, a wiper beam 2, a spring neutralizing rod 3, a spring 4, a spring guide cylinder 5, a clamping shoulder 6, a wiper handle top plate 7, a wiper handle 8, a vertical pin 9, a vertical-horizontal hinge 10, a horizontal pin 11, a triangular plate 12, a wiper blade fixing plate 13, and an elliptical wiper ball 14.

[0025] System device composition relationship and main functions:

[0026] The wiper body fixing device 1 is fixedly connected above the left and right wiper beams 2, and mainly functions to connect the wiper structure and the electric mechanism on the vehicle; the spring neutralizing rod 3 is arranged in the middle of the spring guide cylinder 5 and coaxial with the spring guide cylinder 5, and mainly functions to keep the spring 4 neutral; the spring guide cylinder 5 mainly functions to constrain the spring 4, the wiper handle top plate 7, and the wiper handle 8 in the middle thereof; the spring neutralizing rod 3 and the spring guide cylinder 5 are fixedly connected below the left and right wiper beams 2 in a V shape; the spring 4 is sleeved on the spring neutralizing rod 3, so as to keep neutral and be beneficial to the mechanical performance.

[0027] The wiper handle top plate 7 is arranged below the spring neutralizing rod 3 in the spring guide cylinder 5 and fixedly connected with the wiper handle 8, the length of the spring neutralizing rod 3 is two-thirds of the length of the spring 4, and the spring neutralizing rod 3 can abut against the wiper handle top plate 7 at the limit position to prevent the wiper handle top plate 7 from excessively retracting. The clamping shoulder 6 is connected to the lower end of the spring guide cylinder 5 to prevent the wiper handle 8 from coming out of the spring guide cylinder 5.

[0028] In design, the spring neutralizing rod 3, the spring 4, the spring guide cylinder 5, the clamping shoulder 6, the wiper handle top plate 7, and the wiper handle 8 constitute a wiper arm assembly, and the left and right wiper arm assemblies are hingedly connected into a V-shaped assembly. The V-shaped assembly can make the final functional structure wiper blade assembly have damping force and displacement adjustment ability in a certain range in the transverse displacement, so as to be beneficial to compensating for the deformation of the windshield in the vertical direction and more closely fit the windshield.

[0029] The wiper handle 8 is hingedly connected with the vertical-horizontal hinge 10 through the vertical pin 9, and the triangular plate 12 is hingedly connected with the vertical-horizontal hinge 10 through the horizontal pin 11; the triangular plate 12 is fixedly connected perpendicularly to the wiper blade fixing plate 13, and the elliptical wiper ball 14 is bonded to the wiper blade fixing plate 13, and the three together constitute a wiper blade assembly. The wiper blade assembly can be stably hingedly connected to the vertical-horizontal hinge 10 by means of the triangular structure, can be rotated longitudinally through the horizontal hinge, and is beneficial to compensating for the deformation of the windshield and closely fitting the windshield.

[0030] Compared with the traditional wiper, the wiper blade assembly designed by the application is divided into three sections, which belong to a middle section and two side sections respectively. The main purpose of the division is to make the wiper blade assembly more flexible to cope with different deformation conditions of the windshield glass at different positions, so as to more efficiently compensate for the deformation of the windshield glass and fit the windshield glass.

[0031] The elliptical brush ball 14 is made of soft rubber and has the characteristic of easy deformation. The shape is oval, and the drum edge is arranged in the longitudinal direction. The easy deformation characteristic is fully exerted under the mutual extrusion of the longitudinal arrangement of the brush ball. The brush ball can be stretched and deformed vertically through longitudinal extrusion at the most severely extruded place, which is beneficial to compensate for the deformation of the windshield glass and fit the windshield glass. The principle is that the most severely extruded place of the brush ball is often the place where the windshield glass is deformed outward, and the place where the windshield glass is deformed inward is beneficial to the vertical stretching and deformation of the brush ball, so that the deformation of the brush ball compensates for the deformation of the windshield glass.

[0032] The elliptical brush ball 14 is arranged in two columns on the wiper blade fixing plate 13 in a staggered manner. The purpose of the division is to weaken the integrity and increase the independence, so as to better exert the deformation characteristic of the brush ball. The purpose of the staggered arrangement is to not leave gaps for rainwater, so as to achieve better cleaning effect.

[0033] The innovation design of the application is concentrated in the following aspects:

[0034] 1. The left and right two brush arm assemblies are hinged into a V-shaped assembly. The V-shaped assembly can make the final functional structure wiper blade assembly have damping force and a certain range of displacement adjustment capability in the transverse displacement, so as to be beneficial to compensate for the deformation of the windshield glass in the vertical direction and fit the windshield glass better.

[0035] 2. The wiper blade assembly can be stably hinged on the longitudinal and horizontal hinge 10 by means of the triangular structure, and can be rotated longitudinally through the horizontal hinge, which is beneficial to compensate for the deformation of the windshield glass and fit the windshield glass.

[0036] 3. The wiper blade assembly is divided into three sections. The main purpose of the division is to make the wiper blade assembly more flexible to cope with different deformation conditions of the windshield glass at different positions, so as to more efficiently compensate for the deformation of the windshield glass and fit the windshield glass.

[0037] 4. The elliptical brush ball 14 is made of soft rubber and has the characteristic of easy deformation. The shape is oval, and the drum edge is arranged in the longitudinal direction. The easy deformation characteristic is fully exerted under the mutual extrusion of the longitudinal arrangement of the brush ball.

[0038] The brush ball can be stretched and deformed vertically through longitudinal extrusion at the most severely extruded place, which is beneficial to compensate for the deformation of the windshield glass and fit the windshield glass. The principle is that the most severely extruded place of the brush ball is often the place where the windshield glass is deformed outward, and the place where the windshield glass is deformed inward is beneficial to the vertical stretching and deformation of the brush ball, so that the deformation of the brush ball compensates for the deformation of the windshield glass.

[0039] The most severe deformations are often found where the windshield bulges outward, while the concave deformations of the windshield allow the brush to extend vertically upward and release the deformation, thus compensating for the deformation of the brush and the windshield.

[0040] 5. The elliptical brush balls 14 are arranged in two staggered rows on the brush plate fixing plate 13. The purpose of the staggered arrangement is to reduce the overall weight distribution.

[0041] The design enhances the individuality and independence of the brush balls, allowing for better utilization of their deformation characteristics. The staggered arrangement aims to eliminate gaps for rainwater, resulting in a superior cleaning effect.

[0042] The above specific embodiments or examples are only used to explain the technical solutions of the present invention and are not intended to limit this application. Any parts not described in detail are considered conventional technical means or common knowledge in the field. Those skilled in the art should understand that, based on the design concept of this application, the foregoing embodiments should be applicable.

[0043] Adaptive modifications may be made to the described technical solutions, or equivalent substitutions may be made to some or all of the technical features thereof. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for effectively brushing rain in a large speed windshield undercut condition, characterized in that, Several rain brushing mechanisms are arranged on two sections of the brush beam, and two adjacent rain brushing mechanisms are hinged; any rain brushing mechanism comprises a brush piece assembly and a brush arm assembly, the brush arm assembly adopts a telescopic V-shaped support arm structure, the V-shaped support arm structure is formed by hinging two sections of telescopic support arms, one end of the two sections of telescopic support arms is hinged together, and the other end is fixed on the brush beam; the upper end of the brush piece assembly is rotationally connected to the hinge of the two sections of telescopic support arms; a plurality of brush balls are arranged at the lower end of the brush piece assembly for cleaning the windshield.

2. The device for effective rain wiping in recessed situation of large speed windshield as claimed in claim 1, characterized in that, The telescopic V-shaped support arm structure comprises a spring neutral rod, a spring, a spring guide cylinder and a brush handle, one end of the spring guide cylinder is fixed on the brush beam, and the other end is provided with a brush handle passing hole; the spring neutral rod is arranged in the spring guide cylinder, one end of the spring neutral rod is fixed on the brush beam, and the other end is a free end, the spring is sleeved on the spring neutral rod, one end of the spring abuts against the brush beam, and the other end abuts against the base of the brush handle, and the other end of the brush handle passes through the passing hole of the spring guide cylinder and is rotationally connected to one end of the vertical hinge.

3. The device for effective rain wiping in recessed situations of large speed windshields according to claim 2, characterized in that, The length of the spring is greater than the length of the spring neutral rod, so that the brush handle has a certain movement space in the spring guide cylinder.

4. The device for effective rain wiping in recessed situation of large speed windshield as claimed in claim 2, wherein, The vertical hinge is a double-ear structure perpendicular to each other, the upper double-ear is connected to the brush handle of the V-shaped support arm structure through a rotating shaft, and the lower double-ear is rotationally connected to the upper end of the brush piece assembly through a rotating shaft.

5. A device for effectively wiping rain in recessed situations in large velocity windshields as claimed in claim 2 or 4, characterized in that, The brush piece assembly comprises a triangular plate, a brush piece fixing plate and a plurality of elliptical brush balls, the triangular plate is vertically fixed to the brush piece fixing plate, and the plurality of elliptical brush balls are adhered to the brush piece fixing plate.

6. The device for effective rain wiping in recessed situations of large speed windshields of claim 5, wherein, The elliptical brush ball is made of soft rubber and has the characteristics of easy deformation, and the drum edge is arranged in the longitudinal direction.

7. The device for effective rain wiping in recessed situations of large speed windshields according to claim 6, characterized in that, The elliptical brush balls are arranged in two rows on the brush piece fixing plate.

8. The device for effective rain wiping in recessed situations of large speed windscreens according to claim 1, characterized in that, Among the rain brushing mechanisms arranged on the brush beam, every three constitutes a group and is arranged in a straight line, and the rain brushing mechanism in the middle position is fixed above the brush beam through the brush body fixing device.

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