A motorcycle windshield wiper

Abstract

The present application provides a motorcycle wiper, comprising a wiper arm assembly, a bracket mechanism, and a wiper element; the bracket mechanism is internally provided with an elastically deformable housing, the interior of the housing being filled with magnetorheological fluid; the wiper element is limitedly engaged between the two housings, and the wiper element has an elastic component; the wiper arm assembly is equipped with an electromagnetic generator; when the electromagnetic generator generates a magnetic field, the two housings move toward each other to press the elastic component in a first state; when the electromagnetic generator does not generate a magnetic field, the two housings move away from each other, causing the elastic component to elastically release and enter a second state. As can be seen from the above description, the electromagnetic generator changes the properties of the magnetorheological fluid, causing the housings to deform relative to each other, changing the state of the wiper element and increasing the contact between the wiper element and the glass; at the same time, during initial use, the relative tightening ensures that dust or sand in the gap is avoided, and the contact portion between the wiper element and the glass pushes away dust or sand in parallel, thereby achieving cleanliness of the motorcycle glass from the first use.

Description

Technical Field

[0001] The present application relates to the technical field of motorcycle wipers, and in particular to a motorcycle wiper. Background Art

[0002] The electrification construction of China's railway trunk lines has developed rapidly in recent years. New locomotives and almost all rail transit trains provide passengers with a fast and comfortable riding environment.

[0003] Every EMU and locomotive is equipped with a wiper system, which includes an electric motor, a speed reducer, a four-bar linkage, a wiper arm spindle, and wiper blades. When the driver presses the wiper switch, the motor starts. The motor's speed is reduced and torque-increased by the worm gear, driving the swing arm. The swing arm drives the four-bar linkage, which in turn drives a rotating shaft mounted on the front panel to swing left and right. Finally, the rotating shaft drives the wiper blades to wipe the windshield.

[0004] When a train or locomotive is traveling at high speed and encounters rain, the importance of the wiper system becomes apparent. However, after the train or locomotive arrives at a station and stops, dust or sand will adhere to the gap between the wiper blade and the glass. Although the locomotive or train is traveling at a high speed, the dust or sand in the gap between the wiper blade and the glass cannot be completely blown away. When the wiper system is first used, most of the dust or sand will swing with the blade, causing the glass to blur and damaging the locomotive or locomotive glass. This is quite common. At the same time, when the wiper blade is wiping rain from the locomotive glass, the fit between the wiper blade and the glass depends closely on the spring on the swing arm and the curvature of the wiper blade. Imperfect fit can cause scratches on the glass over time, posing a safety hazard to locomotives traveling at high speeds when visibility is not completely clear. Summary of the Invention

[0005] The present application provides a motorcycle windshield wiper, which adopts elastic deformation to tighten the wiper member during use, thereby increasing the contact strength between the wiper member and the glass.

[0006] The present application provides a motorcycle windshield wiper, which includes: a wiper arm assembly, a bracket mechanism hingedly connected to the wiper arm assembly, and a wiper member detachably fixedly connected to the bracket mechanism; wherein,

[0007] The interior of the bracket mechanism is provided with an elastically deformable shell in a mirror-image relationship, and the interior of the shell is filled with magnetorheological fluid;

[0008] The scraping member is limitedly engaged between the two shells, and the scraping member has an elastic component that can be deformed into a first state and a second state;

[0009] The scraper arm assembly is equipped with an electromagnetic generator that is electromagnetically connected to the magnetorheological fluid inside the two shells;

[0010] When the electromagnetic generator generates a magnetic field, the magnetorheological fluid inside the two shells produces Bingham fluid characteristics, and the two shells press the elastic component toward each other to be in the first state;

[0011] When the electromagnetic generator does not generate a magnetic field, the magnetorheological fluid inside the two shells produces Newtonian fluid properties, and the two shells move away from each other so that the elastic component is elastically released and is in the second state.

[0012] In a specific embodiment, the bracket mechanism is hingedly connected to the scraper arm assembly via a rotating shaft connection.

[0013] In a specific embodiment, the support mechanism is an arc-shaped plate that is larger than a semicircle, or;

[0014] The bracket mechanism is a rectangular shell with one side open.

[0015] In a specific possible implementation scheme, a first conductive member connected to the electromagnetic generator is provided inside the bracket mechanism along the length direction, and the first conductive member is oppositely connected to a second conductive member that conducts electrical energy to the magnetorheological fluid inside the two shells.

[0016] In a specific embodiment, both of the housings have a liquid storage cavity for loading magnetorheological fluid;

[0017] The two shells have sides facing each other with skeleton corners capable of diamond support.

[0018] In a specific embodiment, the length of the scraping member is the same as the length of the support mechanism, or;

[0019] The length of the scraping member is greater than the length of the bracket mechanism.

[0020] In a specific possible implementation manner, a plurality of positioning holes for engaging the scraping member are provided at intervals along the length direction of the bracket mechanism.

[0021] In a specific embodiment, the scraping member further has a positioning member;

[0022] The positioning member is connected to the elastic component;

[0023] The positioning member is engaged between the two shells, and the positioning member is engaged and locked with the plurality of positioning holes.

[0024] In a specific possible implementation scheme, the bottom of the positioning member is provided with protruding members that match the multiple positioning holes in a one-to-one correspondence, and each of the protruding members is symmetrically provided with inverted hooks.

[0025] In a specific embodiment, the elastic component includes a semicircular rubber body;

[0026] When the support mechanism is an arc-shaped plate body that is larger than a semicircle, the semicircle direction of the rubber body and the arc direction of the support mechanism are opposite to each other;

[0027] The outer surface of the rubber body is provided with a silica gel coating layer.

[0028] In the present invention, the properties of the magnetorheological fluid are changed by an electromagnetic generator, so that the shell is relatively deformed, the state of the scraping element is changed, and the fit between the scraping element and the glass is increased; at the same time, it is ensured that during the first use, the dust or sand in the gap is relatively tightened to avoid it, and the contact part between the scraping element and the glass pushes away the dust or sand in parallel, so that the cleanliness of the locomotive glass can be achieved for the first time; the overall operation is simple and fast, and it is more prominent on high-speed locomotives. The higher fit is more effective in scraping off rain and snow, ensuring the clarity of the glass at all times and improving the safety of locomotive driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic structural diagram of a motorcycle wiper provided in an embodiment of the present application;

[0030] Figure 2 A schematic diagram of the structure of the bracket mechanism provided in an embodiment of the present application;

[0031] Figure 3 A schematic structural diagram of a housing provided in an embodiment of the present application;

[0032] Figure 4 A three-dimensional structural diagram of a scraping member provided in an embodiment of the present application;

[0033] Figure 5 A cross-sectional view of a scraping member provided in an embodiment of the present application.

[0034] Figure Numbers

[0035] Scraper arm assembly-100, rotating shaft connector-110, electromagnetic generator-120;

[0036] Support mechanism 200, cover plate 201, conductive connector 202, first conductive member 203, second conductive member 204, housing 205, positioning hole 206, magnetorheological fluid 207;

[0037] Scraping member 300, positioning member 301, elastic component 302, silicone coating layer 303, protrusion 304, and hook 305. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0040] In order to facilitate understanding of the locomotive wiper provided by the embodiment of the present application, its application scenario is first explained. The locomotive wiper is mainly used in the field of locomotive driving safety technology. When a train or locomotive is traveling at high speed, if it encounters rainy weather, the wiper system highlights its importance. However, after the train or locomotive arrives at the station and stops, dust or sand will adhere to the gap between the wiper blades. Although the locomotive or locomotive travels at a high speed, the dust or sand in the gap between the wiper blade and the glass cannot be completely blown away; when the wiper system is used for the first time, most of the dust or sand swings with the wiper blade, causing the glass to blur and damage the locomotive or locomotive glass, which is relatively common. At the same time, when the wiper blade is wiping rainwater from the locomotive glass, the fit between the wiper blade and the glass depends closely on the spring on the swing arm and the curvature of the wiper blade. If the fit is not perfect, the glass will be scratched for a long time, which will cause safety hazards to locomotives traveling at high speeds when the line of sight is not completely clear. In view of this, the motorcycle wiper in the present application adopts elastic deformation to tighten the wiper member during use, thereby increasing the contact strength between the wiper member and the glass.

[0041] refer to Figure 1 , Figure 1The schematic diagram of the structure of a locomotive wiper. The locomotive wiper provided in the embodiment of the present application includes: a wiper arm assembly 100; when the locomotive driver presses the wiper switch, the motor starts, and the speed of the motor drives the swing arm through the deceleration and torque-increasing effect of the worm gear, and the swing arm drives the four-bar linkage, and the four-bar linkage drives the rotating shaft installed on the front panel to swing left and right, and finally the rotating shaft drives the wiper arm assembly 100 to rotate. The wiper arm assembly 100 is equipped with a spring assembly for increasing the adhesion strength between the wiper member 300 and the glass. The wiper arm assembly 100 and the motor group that drives it to rotate are both commonly used technical methods in the prior art and will not be described in detail here. The locomotive wiper also has a spray mechanism for spraying glass water on the glass to ensure deep cleaning of the dirt attached to the glass.

[0042] The wiper arm assembly 100 is hingedly connected to a bracket mechanism 200, which is hingedly connected to the wiper arm assembly 100 via a rotating shaft connector 110. After the wiper arm assembly 100 is tilted to a vertical position, the bracket mechanism 200 can be swung to replace the wiper element 300 mounted thereon, making operation more convenient. The wiper arm assembly 100 includes a brush rod bracket, an anti-lift assembly, and a spring assembly. The anti-lift assembly and spring assembly are installed on the brush rod bracket to ensure a tight and secure connection between the top of the brush rod bracket and the brush rod assembly, ensuring uniform and reliable torque transmission between the brush rod bracket and the brush rod assembly during wiper operation, thereby extending the service life of the wiper system.

[0043] A parallel frame assembly is connected between the two brush rod brackets, and the anti-floating assembly is connected to the brush rod connector through a positioning block; the spring assembly includes a tension spring, an inner thread sleeve of the tension spring, an adjusting screw locking card, an all-metal hexagonal locking nut, a hexagonal bolt, and a hemispherical washer; the inner thread sleeve of the tension spring is installed in the tension spring, and the all-metal hexagonal locking nut is installed in the adjusting screw locking card. One end of the tension spring is hooked on the brush rod connector, and the other end of the tension spring is connected by a hexagonal bolt through the hemispherical washer, the adjusting seat, the adjusting screw locking card and the tension spring installed in the tension spring. The internal threaded sleeve is connected, and the pressing force of the brush rod on the brush plate is adjusted by adjusting the tension of the hexagonal head bolt and the tension spring to ensure the cleanliness of scraping and prevent the wiper brush rod from flipping or floating; the brush rod connector is provided with two circular slots, and a reinforcement plate is provided at the connection between the brush rod bracket and the brush rod connector to solve the problems of wear, intermittent shaking or breakage of the brush rod bracket, and increase the reliability and service life of the wiper. The brush rod bracket adopts a double-tube bent rod structure, and a spray water pipe is inserted in the brush rod bracket. The brush plate rocker assembly is provided with a waist-shaped hole for easy up and down adjustment.

[0044] The bracket mechanism 200 is an arc-shaped plate that is larger than a semicircle, or a rectangular housing 205 with one side open. Whether the bracket mechanism 200 is arc-shaped or rectangular, it has a cavity for mounting the scraper 300, so that the scraper 300 can be detachably fixed to the bracket mechanism 200, ensuring that when the scraper arm mechanism drives the bracket to swing left and right, it can drive the bracket mechanism 200 to work synchronously.

[0045] The length of the scraper 300 is the same as that of the bracket mechanism 200, or the length of the scraper 300 is greater than that of the bracket mechanism 200. In the present application, a longer bracket mechanism 200 is used to wrap a portion of the scraper 300, so that the portion where the scraper 300 contacts the glass is exposed outside the bracket mechanism 200. At the same time, a housing 205 structure for changing the shape of the scraper 300 is provided inside the bracket mechanism 200, thereby ensuring the adhesion strength between the scraper 300 and the glass. During initial use, the scraper 300 swings synchronously without picking up dust and sand on the glass. The scraper 300 is tightened to avoid dust and sand on the glass, thereby promoting parallel movement of dust and sand after the adhesion is enhanced.

[0046] For reference Figure 2 and Figure 3 The support mechanism 200 in the embodiment of the present application preferably adopts an arc-shaped plate body that is larger than a semicircle. The interior of the support mechanism 200 is provided with an elastically deformable shell 205 in a mirror-image relationship. The interior of the shell 205 is filled with magnetorheological fluid 207. Both shells 205 have a liquid storage chamber for loading the magnetorheological fluid 207. The sides of the two shells 205 facing each other have a skeleton corner that can be supported in a diamond shape. The shell 205 is made of a deformable silicone material, and its corners are thickened and memory-treated so that it can undergo different changes when the characteristics of the magnetorheological fluid 207 are different.

[0047] Magnetorheological fluid 207 is a new type of "smart" fluid. It uniformly disperses and immerses micron- or nanometer-sized ferromagnetic particles in a non-magnetic carrier fluid and additives to form a suspension. Its fluid properties can be altered under the influence of an external electromagnetic field. In a high magnetic field, it exhibits the low-flow, high-viscosity Bingham fluid properties; in a weak magnetic field, it exhibits the high-flow, low-viscosity Newtonian fluid properties. It can achieve stepless changes between high and low viscosities in milliseconds, thereby supporting the deformation of the shell 205.

[0048] Combine Figure 4As shown in FIG, a scraping member 300 is fixedly engaged between the two housings 205 and includes an elastic component 302 that can be deformed into a first state and a second state. The elastic component 302 includes a semicircular rubber body. When the support mechanism 200 is an arc-shaped plate larger than the semicircular body, the semicircular direction of the rubber body faces away from the arc direction of the support mechanism 200. The outer surface of the rubber body is provided with a silicone coating layer 303. This silicone coating layer 303 serves as the scraping point for contact with the glass. The apex of its arc contacts the glass. When the two housings 205 first squeeze the sides of the rubber body, the arc of the silicone coating layer 303 decreases. This decrease in arc strengthens the contact between the silicone coating layer 303 and the glass, and simultaneously avoids dust and sand hidden in the gap between the silicone coating layer 303 and the glass. This ensures that the contact area of the silicone coating layer 303 is at a certain distance from the dust and sand on the glass, thereby achieving parallel propulsion and movement of the dust and sand. Equipped with windshield washer fluid for simultaneous cleaning, the glass can be highly cleaned during the first wipe, and it is more effective when wiped against rain and snow.

[0049] In the specific implementation of the above functions, the wiper arm assembly 100 is equipped with an electromagnetic generator 120 that is electromagnetically connected to the magnetorheological fluid 207 inside the two shells 205; when the electromagnetic generator 120 generates a magnetic field, the magnetorheological fluid 207 inside the two shells 205 produces Bingham fluid characteristics, and the two shells 205 press the elastic component 302 toward each other in a first state; the first state is the wiper usage state, and when the wiper switch is turned on, the electromagnetic generator 120 synchronously generates a magnetic field, reacts in milliseconds, squeezes the rubber body, and increases the bonding strength of the silicone coating layer 303.

[0050] When the electromagnetic generator 120 is not generating a magnetic field, the magnetorheological fluid 207 within the two housings 205 exhibits Newtonian fluid properties, and the two housings 205 move away from each other, releasing the elastic component 302 to enter the second state. This second state represents the wiper's inactive state, which refers to the complete deactivation of the wiper switch. In this state, the housings 205 are deformable, and the rubber body returns to its initial shape after being freed from the compressive force. The two housings 205 are deformed by the compressive force. After receiving the compressive force of the restoring elastic force, the two housings 205 assume a parallelogram-like shape. At this point, the silicone coating 303 remains in contact with the glass, with a relatively large contact surface, effectively preventing dust and sand from becoming lodged between the glass and the silicone coating 303.

[0051] Continue to refer Figure 2 and Figure 5 The support mechanism 200 is provided with a first conductive member 203 connected to the electromagnetic generator 120 along the length direction. The first conductive member 203 is oppositely connected to a second conductive member 204 that conducts electrical energy to the magnetorheological fluid 207 inside the two shells 205. Figure 1 It can be seen that a slot for loading the first conductive member 203 is provided on the bracket mechanism 200, and a cover plate 201 is provided on the slot. The electromagnetic generator 120 and the bracket mechanism 200 are located at two different positions, and the bracket mechanism 200 is a hinged scraper arm assembly 100, so a conductive joint 202 is provided on the bracket mechanism 200. The electromagnetic generator 120 is connected to the conductive joint through a line with a preset longer length. The conductive joint 202 is electrically connected to the first conductive member 203. The first conductive member 203 transmits the electric energy generating the magnetic field to the magnetorheological fluid 207 through the second conductive member 204 to change its characteristics.

[0052] When the scraping member 300 is fixedly assembled, a plurality of positioning holes 206 for engaging the scraping member 300 are provided in the bracket mechanism 200 along its length. The scraping member 300 also has a positioning member 301; the positioning member 301 is connected to the elastic component 302; Figure 5 As can be seen in the figure, the positioning member 301 is composed of a rectangular top and an arc-shaped bottom. The arc-shaped bottom is used to fit the arc surface of the bracket mechanism 200. Of course, when the bracket mechanism 200 is rectangular, the bottom of the positioning member 301 is flat. The arc-shaped bottom connects to the upper rectangular portion to form an inclined surface, which is used to engage and limit the position between the two housings 205.

[0053] To achieve locking and enhanced engagement strength, the positioning member 301 engages between the two housings 205. The bottom of the positioning member 301 is provided with protrusions 304 that correspond one-to-one with the multiple positioning holes 206. Each protrusion 304 is symmetrically provided with barbs 305. Consequently, by pushing the positioning member 301 into the bracket mechanism 200, the multiple protrusions 304 engage with the corresponding positioning holes 206. The barbs 305 enhance the engagement strength, thereby achieving locking. To replace the scraper 300, the protrusions 304 can be lifted out of the positioning holes 206 using a tool, making it easier to replace the scraper 300.

[0054] In the present invention, the electromagnetic generator 120 is used to change the characteristics of the magnetorheological fluid 207, causing the shell 205 to deform relatively, thereby changing the state of the scraping member 300 and increasing the fit between the scraping member 300 and the glass. At the same time, it is ensured that during the first use, the dust or sand in the gap is relatively tightened to avoid it, and the contact area between the scraping member 300 and the glass pushes away the dust or sand in parallel, so that the cleanliness of the locomotive glass can be achieved for the first time. The overall operation is simple and fast, and it is more prominent on high-speed locomotives. The higher fit is more effective in scraping off rain and snow, ensuring the clarity of the glass at all times and improving the safety of locomotive driving.

[0055] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Based on the concept of the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present specification as above, which are not provided in detail for the sake of simplicity.

[0056] In addition, to simplify the description and discussion, and so as not to obscure one or more embodiments of the present specification, known power / ground connections to integrated circuits and other components may or may not be shown in the provided figures. In addition, devices may be shown in block diagram form to avoid obscuring one or more embodiments of the present specification, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of the present specification are to be implemented (i.e., these details should be fully within the purview of those skilled in the art). Where specific details (e.g., circuit layouts) are set forth to describe exemplary embodiments of the present disclosure, it will be apparent to those skilled in the art that one or more embodiments of the present specification may be implemented without these specific details or with variations in these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0057] The one or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification shall be included within the scope of protection of this disclosure.

[0058] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A motorcycle wiper, characterized in that: include: A scraping arm assembly, a bracket mechanism hingedly connected to the scraping arm assembly, and a scraping brush member detachably fixedly connected to the bracket mechanism; wherein, The interior of the bracket mechanism is provided with an elastically deformable shell in a mirror-image relationship, and the interior of the shell is filled with magnetorheological fluid; The scraping member is limitedly engaged between the two shells, and the scraping member has an elastic component that can be deformed into a first state and a second state; the elastic component includes a semicircular rubber body; the outer surface of the rubber body is provided with a silicone coating layer; The scraper arm assembly is equipped with an electromagnetic generator that is electromagnetically connected to the magnetorheological fluid inside the two shells; When the electromagnetic generator generates a magnetic field, the magnetorheological fluid inside the two shells produces Bingham fluid properties, and the two shells press the elastic component toward each other in the first state; when the two shells relatively squeeze the two sides of the rubber body, the curvature of the silicone coating layer becomes smaller, thereby increasing the bonding strength between the silicone coating layer and the glass; When the electromagnetic generator does not generate a magnetic field, the magnetorheological fluid inside the two shells produces Newtonian fluid properties, and the two shells move away from each other, causing the elastic component to be elastically released and in the second state; the rubber body returns to its original shape after no longer being subjected to the resistance force.

2. The motorcycle wiper according to claim 1, characterized in that: The bracket mechanism is hingedly connected to the scraper arm assembly via a rotating shaft connection.

3. The motorcycle wiper according to claim 1, characterized in that: The support mechanism is an arc-shaped plate that is larger than a semicircle, or; The bracket mechanism is a rectangular shell with one side open.

4. The motorcycle wiper according to claim 3, characterized in that: A first conductive member connected to the electromagnetic generator is provided inside the bracket mechanism along the length direction. The first conductive member is oppositely connected to a second conductive member that conducts electrical energy with the magnetorheological fluid inside the two shells.

5. The motorcycle wiper according to any one of claims 1 to 4, characterized in that: Both of the shells have a liquid storage cavity for loading magnetorheological fluid; The two shells have sides facing each other with skeleton corners capable of diamond support.

6. The motorcycle wiper according to claim 5, characterized in that: The length of the scraping member is the same as the length of the bracket mechanism, or; The length of the scraping member is greater than the length of the bracket mechanism.

7. The motorcycle wiper according to claim 6, characterized in that: A plurality of positioning holes for engaging the scraping member are arranged at intervals along the length direction of the bracket mechanism.

8. The motorcycle wiper according to claim 7, characterized in that: The scraping member also has a positioning member; The positioning member is connected to the elastic component; The positioning member is engaged between the two shells, and the positioning member is engaged and locked with the plurality of positioning holes.

9. The motorcycle wiper according to claim 8, characterized in that: The bottom of the positioning piece is provided with a protrusion piece which corresponds to the plurality of positioning holes one by one, and each of the protrusion pieces is symmetrically provided with an inverted hook.

10. The motorcycle wiper according to claim 3, characterized in that: When the support mechanism is an arc-shaped plate body that is larger than a semicircle, the semicircle direction of the rubber body and the arc direction of the support mechanism are opposite to each other.

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