Pull-type cleaner

Abstract

A traction type cleaner belongs to the field of automobiles and comprises a traction system, a cleaning system and a power system, and the traction system receives power transmitted by the power system and converts the power into traction force to drive the cleaning system to clean objects during working. The traction system comprises an annular closed conveying belt, a support and a limiting object series, the conveying belt annularly moves around the graphic edge determined on the outer side of the support series, and the limiting object series limits the conveying belt not to be separated from the constraint of the support series in the movement process; the cleaning system comprises a combined swing arm and a cleaning doctor blade connected with the combined swing arm, a fixed arm and a movable arm of the combined swing arm are formed according to a certain rule, and compound motion is generated under traction of the traction system, so that glass is cleaned; based on changes of force application points and structures, cleaning objects are not affected by areas and shapes, various defects existing in various cleaning modes such as guide grooves are overcome, the structure is simple and easy to implement, and the cleaning device can be expanded to be used for other large-area places.

Description

Technical Field

[0001] It belongs to the field of automobiles. Background Art

[0002] The windshield wiper is an indispensable device for cleaning transportation vehicles, including automobiles; among the existing materials, there are many distinctive creations, but the products should be further enriched, mainly in the following aspects. In some cases, when cleaning a large or irregularly shaped glass area, the performance is not ideal enough. For example, some use guide grooves to clean dead corners, but it is easy to cause the combined swing arm to be not smooth enough during operation, and there are even cases where there are dead corners where it cannot operate. Some cannot make both ends of the support of the cleaning wiper blade closely adhere to the glass for cleaning; some cannot expand their uses, such as being conveniently used for transportation vehicles in a wider range of fields, or places or houses; some structures are not simple enough; for the above reasons, this application is proposed. Summary of the Invention

[0003] One of the purposes of this application is to be able to clean large, small, or irregularly shaped observation glasses, so it can be used for transportation vehicles in a wider range of fields, including the field of automobiles. Second, under the condition of reliability, the structure is simple and easy to implement. Third, it expands the cleaning application field and can be used for cleaning large-area observation glasses in places or rooms. Thus, a windshield wiper technical solution with good application effects in a wide range of fields is formed.

[0004] The measures adopted by this application to achieve the above purposes are as follows: A traction type cleaner, comprising a traction system and a cleaning system.

[0005] The traction system can receive power transmission, and the cleaning system makes a circular cleaning driven by the traction system.

[0006] During operation, after the traction system receives power, it drives the cleaning system to clean the required glass in a logical relationship.

[0007] The main component in the traction system is a circular closed conveyor belt, which is placed around the cleaning glass. Under the action of power, the conveyor belt can move back and forth around the cleaning glass. One end N of the telescopic combined swing arm in the cleaning system is connected to the conveyor belt, and the other end B is directly or indirectly connected to the vehicle body. The telescopic combined swing arm in the cleaning system can form a repeated rotation mode not limited to 180 degrees. Based on the above connection relationship, the following logical relationship can be formed.

[0008] During operation, the telescopic combined swing arm in the cleaning system, on the one hand, makes a reciprocating motion along the circular part of the glass perimeter under the action of the conveyor belt, and on the other hand, can extend and retract to adapt to the length during the movement process, so as to maximize the cleaning of the glass.

[0009] In the traction motion state, the retractable combined swing arm in the cleaning system forms a lever in motion. One end B connected to the vehicle body becomes the fulcrum of the lever, and one end N connected to the conveyor belt forms the force application point of the lever during the motion. Therefore, in the circular motion of the retractable combined swing arm, the conveyor belt can obtain the best traction effect with the minimum force, ensuring that it is not restricted by the size and peripheral shape of the glass to be cleaned from the perspective of force.

[0010] Also, based on the relatively tight connection between the retractable combined swing arm and the conveyor belt in the cleaning system, any point on the motion trajectory of the conveyor belt can reliably ensure the complete extension or retraction of the retractable combined swing arm in the cleaning system. The combined swing arm changes following the motion trajectory of the conveyor belt. Therefore, it can be used not only for the windshield in front of the driver's seat of a vehicle with a small glass area but also for other transportation tools or buildings with a large glass surface.

[0011] Among them, the traction system mainly includes a conveyor belt with a conveying function and a series of supports composed of multiple supports. One end of the support is directly or indirectly fixed on the periphery of the glass to be cleaned. The conveyor belt is placed outside the series of supports surrounding the periphery of the enclosed figure. Under the action of external power, the conveyor belt will reciprocate along the edge of the figure determined by the outside of the multiple supports, that is, drive the combined swing arm in the cleaning system to reciprocate around the periphery of the glass to be cleaned.

[0012] Preferably, the supports in the series of supports have a shape or a restrictor that standardizes the motion law of the conveyor belt. When the conveyor belt makes a circular motion according to the figure determined by the series of supports, the conveyor belt will not break away from the support.

[0013] Preferably, the traction system further includes a series of limiters composed of multiple limiters that standardize the motion of the conveyor belt. The limiters are fixedly installed outside the periphery of the figure determined by the series of supports. The fixed limiters are higher than the height at which the conveyor belt leaves the glass. A width for the free movement of the conveyor belt is left between the limiters and the supports. The installed limiters restrict the conveyor belt from slipping out of the restraint of the support from the outer direction during the motion process.

[0014] Among them, the cleaning system includes a retractable combined swing arm and a cleaning wiper connected to the combined swing arm; the B end of the combined swing arm is connected and installed at an appropriate place on the main body of the glass to be cleaned. The connection relationship is such that the B end enables the combined swing arm to rotate. The top end N that can extend outward of the combined swing arm is connected to the conveyor belt. A cleaning wiper is installed on the side of the combined swing arm close to the glass.

[0015] Preferably, the combined swing arm includes a fixed arm and a movable arm. Between the movable arm and the conveyor belt, a connecting piece of a certain length can be bent at a certain angle. The two ends of this piece are respectively connected to the movable arm and the conveyor belt. The part of the connecting piece bent to connect the conveyor belt is higher than the height of the support, so as to form a height where the movable arm is higher than the support series, and it will not become an obstacle to the support during the movement of the cleaning system.

[0016] Preferably, both the movable arm and the fixed arm are long-shaped, and there is a movable connecting mechanism between the movable arm and the fixed arm, so that the movable arm can extend or retract within the fixed arm, and there is a structure to limit the separation of the movable arm from the fixed arm between the two.

[0017] A traction cleaner further includes a power system. The power system includes a bidirectional rotating DC motor and a supporting circuit part that controls the logical law of the DC motor. Under the action of the power system, the traction system drives the combined swing arm in the cleaning system to make a reciprocating motion not limited to 180 degrees, so as to realize the comprehensive cleaning of the glass to be cleaned.

[0018] Preferably, the supporting circuit part in the power system includes a steering control circuit and a motor steering circuit; the output end of the supporting circuit part is connected to the power input terminal of the bidirectional rotating DC motor, and two signals with opposite phases can be sent to the power input terminal of the bidirectional rotating DC motor.

[0019] Due to the connection and structure of the above-mentioned systems, and during the operation, the traction system drives the cleaning system to clean the required glass after receiving the power transmitted by the power system, so the following working states and effects are formed: During operation, the retractable combined swing arm in the cleaning system, on the one hand, under the action of the conveyor belt, makes a reciprocating motion along the periphery of the glass in a circular part, and on the other hand, it can extend and retract to adapt to the length during the movement process, so as to realize the maximization of glass cleaning.

[0020] In the state of traction movement, the retractable combined swing arm in the cleaning system forms a lever in motion. One end B connected to the vehicle body becomes the fulcrum of the lever, and one end N connected to the conveyor belt forms the force application point of the lever during the movement process. During the circular movement of the combined swing arm, the conveyor belt can obtain the best traction effect with the smallest force, and from the perspective of force, it is ensured that it is not restricted by the size and peripheral shape of the glass to be cleaned.

[0021] Based on the fact that the conveyor belt makes a circular movement outside the figure determined by each support, the supports can be installed flexibly, can enclose various special-shaped peripheral shapes, and are not affected by the area size.

[0022] Moreover, since the retractable combined swing arm and the conveyor belt in the cleaning system are closely connected, any point on the movement trajectory of the conveyor belt can reliably ensure the complete traction extension or retraction of the combined swing arm. The combined swing arm changes with the movement trajectory of the conveyor belt. Therefore, it can be used not only for the windshield in front of the driver's seat of a car with a relatively small glass, but also for other large glass surfaces of transportation vehicles or buildings.

[0023] Based on the fact that the power system can adopt various methods to effectively transmit to the traction system, the retractable combined swing arm in the cleaning system can achieve rotation in two directions not limited to 180 degrees, ensuring the cleaning effect. Also, because the traction system forms a surrounding traction relationship with the cleaning system, the retractable combined swing arm can follow the conveyor belt to the required trajectory logical position, creating good conditions for expanding functions.

[0024] For the reasons mentioned above, the technical measures create various favorable conditions for adopting the macroscopic concept of surrounding traction. Advantages

[0025] Based on all the multiple features in the applicant's measures, they can be divided into three major feature series formed for the same technical purpose.

[0026] All the features in Technical Measure 1 form the first major feature series, aiming to adopt the macroscopic concept of surrounding traction, which has more prominent advantages than other methods.

[0027] Technical Measures 2 - 9 together form the second major feature series. The purpose and function are to turn this macroscopic concept of surrounding traction into a simple structural method, that is, it can be completed only with a motor and a traction system. The prominent advantage is that it is simple and applicable under the premise of relatively high reliability, different from other forms, and easy to implement.

[0028] The combined swing arm is flexibly installed between the main body of the object to be cleaned, creating favorable conditions for the installation of this application on other transportation vehicles or office sites, etc.

[0029] Since all three major feature series have great characteristics, they have the following advantages.

[0030] 1. Expand the use of windshield wipers.

[0031] Since the glass area to be cleaned can be very large or relatively small, and is basically not restricted by the shape, it can be used in the following places and for the following purposes.

[0032] 1.1. It can be used to clean the observation glass on the driving platform of a vehicle with a relatively small cleaning area, such as a car. It can also be used for high - end transportation vehicles that require a large cleaning area; the glass area to be cleaned is not restricted by abnormal shapes either.

[0033] 1.2. It can be used in places, such as for cleaning large glass windows in writing rooms for external observation, e.g., floor-to-ceiling observation glass.

[0034] When used in such places, the greatest advantage is that it avoids various inconveniences caused by high-altitude cleaning operations, so that the cleaning and maintenance can be carried out casually.

[0035] 1.3. It is used for daily maintenance of the observation glass of transportation vehicles to keep it clean and maintained in a normal state.

[0036] II. Good cleaning effect.

[0037] 2.1. Each system cooperates flexibly and coordinately, and the cleaning system can ensure the cleaning effect. In the application of the "I" clause, basically no dead corners will be generated.

[0038] The main reason is that based on the composition and structural relationship of Measure 1, the conveyor belt movement can reliably ensure that the movable arm in the combined swing arm is completely pulled out at any position, without the situation of the combined swing arm being too long or too far from the rotation point, resulting in insufficient traction force.

[0039] 2.2. In the case of large-area cleaning, it overcomes the situation of poor drainage in the dead corners when using the guide groove method for cleaning.

[0040] 2.3. During the operation of large-area cleaning, it also overcomes the situation in some existing documents where the cleaning system is not close enough to the cleaning object.

[0041] III. The mechanical structure is simple, without relatively complex components or structural methods, easy to implement, and has low cost. Description of the Drawings

[0042] Figure 1 It is a schematic diagram of the overall structure.

[0043] In the figure: 1, windshield; 201, conveyor belt; 202.1, one of the supports; 202.2, the second support; 202.3, the third support; 202.4, the fourth support; 203, limiting object; 301, combined swing arm; 301.1, fixed arm; 301.2, movable arm; B, the B end of the combined swing arm; N, the N end of the combined swing arm; 304, connecting piece between the movable arm and the conveyor belt; 307, cleaning blade connected to the combined swing arm; 307.1, cleaning blade on the fixed arm; 307.2, cleaning blade on the movable arm.

[0044] Figure 2 It is a schematic diagram showing the relative positions of one support, conveyor belt, limiting object, and combined swing arm.

[0045] In the figure: 201, conveyor belt; 202.1, one of the supports; 203, limiter; 205, groove on the support that regulates the movement of the conveyor belt; 301, combined swing arm; 304, connecting piece between the movable arm and the conveyor belt.

[0046] Figure 3 It is a schematic diagram of the implementation of measures 8 and 9, that is, a schematic diagram of the relationship between the power system.

[0047] In the figure: 1, windshield; 201, conveyor belt; 202.2, second support; 203, limiter; 301.1, fixed arm; 301.2, movable arm; 304, connecting piece between movable arm and conveyor belt; 307.1, cleaning blade on fixed arm; 307.2, cleaning blade on movable arm; 501, bidirectional DC motor; 502, motor steering circuit; 503, steering control circuit; 504, mechanical limit switch 1; 505, mechanical limit switch 2; B, end B of combined swing arm.

[0048] Figure 4 This is a schematic diagram of one of the ways in which the B end of the combined swing arm is connected to the main body.

[0049] In the figure: 1, windshield; 201, conveyor belt; 301, combined swing arm; B, B end of the combined swing arm; N, N end of the combined swing arm.

[0050] Figure 5 This is a schematic diagram of the second connection position of the B end of the combined swing arm and the main body.

[0051] In the figure: 1, windshield; 201, conveyor belt; 301, combined swing arm; B, B end of the combined swing arm; N, N end of the combined swing arm. DETAILED DESCRIPTION

[0052] 1. Methods used by some existing wipers 1.1. Based on the popular classic wiper, a guide groove is added to the edge of the cleaning glass, so that one end of the telescopic cleaning device moves in the guide groove, guiding the cleaning device to clean a larger area and clean dead corners. However, it is found that the force point of the cleaning device is usually not at the contact point between the cleaner and the guide groove, but at a place away from the guide groove, and it is a rotational movement. The component force generated by the movement direction of the guide groove allows the swing arm in the cleaning device to move along the guide groove. Therefore, there are constraints and limitations on the movement of the telescopic cleaning device to meet the cleaning of a larger area. If the constraints and limitations are exceeded, it is easy to cause the cleaning device and the guide groove to become a dead corner, resulting in a blocked movement process, or even a situation where the movement cannot be carried out due to a dead corner.

[0053] 1.2. An annular track guide groove is adopted. The plane determined by the guide groove is not in the plane determined by the cleaning glass. One section of the guide groove is close to the glass and the other section is far from the glass. One end of the cleaning device is fixed in the guide groove. The rotation of the guide groove drives the cleaning device to clean the glass and move away from the glass, forming a circular motion. This principle has formed various implementation manners. However, the main drawback is that the end of the cleaning device that is not connected to the guide groove, that is, the end far from the guide groove, may not be in close contact with the cleaning surface, thus affecting the cleaning effect. If the cleaning area is larger, the end far from the guide rail is farther, and the drawback is more prominent.

[0054] 1.3. Although some achievements can overcome the above two drawbacks, the problem of relatively complex structure and difficult implementation has arisen.

[0055] II. Difficulties existing in this application The cleaning area can be relatively large, including the relatively small windshield of a car, with a relatively large and relatively small range of application space. To achieve the above purposes, firstly, when cleaning a large-area glass, the combined swing arm of the cleaning system has a good contact and close relationship with the glass. Secondly, there is sufficient traction force to ensure the free expansion and contraction of the combined swing arm of the cleaning system and its ability to move automatically in a circular motion. Thirdly, the structure should be simple and easy to implement.

[0056] III. Implementation of Technical Measures 1-7 The following-described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope protected by this application.

[0057] It should be noted that in this application, the terms "include", "comprise", "have" and their variants all mean "include but not limited to", unless otherwise specifically emphasized in other ways.

[0058] In this application, unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or integrated; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0059] 1. A traction-type cleaner, comprising a traction system and a cleaning system; The traction system can receive power transmission, and the cleaning system performs circular cleaning driven by the traction system.

[0060] When working, after receiving power, the traction system drives the cleaning system to clean the required glass.

[0061] The main component in the traction system is a circular closed conveyor belt, which is installed around the cleaning glass. Under the action of power, the conveyor belt can reciprocate around the cleaning glass. One end N of the retractable combined swing arm in the cleaning system is connected to the conveyor belt, and the other end B is directly or indirectly connected to the car body. The retractable combined swing arm in the cleaning system can form a repeated rotation method not limited to 180 degrees. Based on the above-mentioned link relationship, the following logical relationship can be formed.

[0062] 1.1. During operation, the retractable combined swing arm in the cleaning system, on the one hand, moves back and forth in a circular manner along the periphery of the glass under the action of the conveyor belt, and on the other hand, it can extend and retract to adapt to the length during the movement, thereby maximizing the cleaning of the glass.

[0063] 1.2. In the traction state, the retractable combined swing arm in the cleaning system forms a lever in motion. The end B connected to the car body becomes the fulcrum of the lever, and the end N connected to the conveyor belt forms the force point of the lever in the motion process. Therefore, when the retractable combined swing arm is in circular motion, the conveyor belt can obtain the best traction effect with the minimum force. From the perspective of strength, it is guaranteed not to be restricted by the size of the cleaned glass area and the surrounding shape.

[0064] 1.3. Based on the fact that the retractable combined swing arm and the conveyor belt in the cleaning system are closely connected, any point in the trajectory of the conveyor belt movement can reliably ensure that the retractable combined swing arm in the cleaning system is completely pulled out or retracted. The combined swing arm changes along the trajectory of the conveyor belt movement. Therefore, it can be used not only on the windshield in front of the car driving platform with smaller glass, but also on other vehicles with large glass surfaces, or on buildings.

[0065] 2. The traction system mainly comprises a conveyor belt with a conveying function and a support series composed of multiple supports. One end of the support is directly or indirectly fixed on the periphery of the glass to be cleaned. The conveyor belt is placed outside the support series surrounding the pattern. Under the action of external power, the conveyor belt will reciprocate around the edge of the pattern determined by the outer sides of the multiple supports, that is, drive the combined swing arm in the cleaning system to reciprocate around the glass to be cleaned.

[0066] 3. In some specific implementation measures, the supports in the support series have shapes that regulate the movement of the conveyor belt, or have restrictive objects. When the conveyor belt moves in a circular motion according to the pattern determined by the support series, the conveyor belt will not fall off the supports.

[0067] 4. The traction system further includes a series of limiters composed of multiple limiters for regulating the movement of the conveyor belt, which are fixedly installed on the outer side of the periphery of the determined figure of the support series. The fixed limiters are higher than the height at which the conveyor belt leaves the glass. A width for the free movement of the conveyor belt is left between the limiters and the supports. The installed limiters prevent the conveyor belt from slipping out of the restraint of the supports from the outer side during movement.

[0068] In a specific implementation measure, the limiters are in the form of long strips, positioning the relatively long sections of the conveyor belt, thus avoiding the conveyor belt separating and slipping out of the grooves of the supports during the movement of the combined swing arm.

[0069] 5. Among them, the cleaning system includes a retractable combined swing arm and a cleaning blade connected to the combined swing arm. The B end of the combined swing arm is connected and installed at an appropriate place on the main body of the glass to be cleaned. The connection relationship is such that the B end enables the combined swing arm to rotate. The top end N that can extend outward of the combined swing arm is connected to the conveyor belt. A cleaning blade is installed on the side of the combined swing arm close to the glass.

[0070] 6. The combined swing arm includes a fixed arm and a movable arm. Between the movable arm and the conveyor belt, a connecting piece of a certain length can be bent at a certain angle. The two ends of this piece are respectively connected to the movable arm and the conveyor belt. The part of the connecting piece bent to connect the conveyor belt is higher than the height of the support, thus forming the height of the movable arm higher than the series of supports, and it will not become an obstacle to the support during the movement of the cleaning system.

[0071] 7. Both the movable arm and the fixed arm are long-shaped. There is a movable connection mechanism between the movable arm and the fixed arm, forming that the movable arm can extend or retract within the fixed arm, and there is a structure to limit the separation of the movable arm from the fixed arm between them.

[0072] The combined swing arm can have various combination methods. In one embodiment, both the movable arm and the fixed arm are long strips. The longitudinal section of the long-shaped fixed arm is in a shape similar to a U-shaped groove. The long-shaped movable arm is inserted into the U-shaped groove, finally forming that the movable arm can extend or retract within the fixed arm, and there is a structure to limit the separation of the movable arm from the fixed arm between them. The B end of the combined swing arm is directly or indirectly connected to the main body of the vehicle body, but can form a rotation function not limited to 180 degrees.

[0073] IV. Implementation of Technical Measures 8 and 9

[0074] A traction cleaner further includes a power system. The power system includes a bidirectional rotating DC motor and a supporting circuit part for controlling the logical law of the DC motor. Under the action of the power system, the traction system drives the combined swing arm in the cleaning system to make a reciprocating movement in two directions not limited to 180 degrees, so as to achieve a comprehensive cleaning of the glass to be cleaned.

[0075] Specifically, the supporting circuit part in the power system includes a steering control circuit and a motor steering circuit. The output end of the supporting circuit part is connected to the power input end of the bidirectional rotating DC motor, and two signals with opposite phases can be sent to the input end of the power supply of the bidirectional rotating DC motor.

[0076] The specific implementation measures are as follows: After the supporting circuit part reaches specific multiple positions of the movable arm, it outputs different signals to the bidirectional rotating DC motor, changes the working state of the forward and reverse directions of the bidirectional rotating DC motor, drives the traction system, and thus drives the retractable combined swing arm in the cleaning system to move in two directions of back and forth greater than or equal to 180 degrees, so as to achieve a comprehensive cleaning of the cleaning glass.

[0077] The supporting circuit part that controls the logic law of the bidirectional rotating DC motor includes a steering control circuit and a motor steering circuit.

[0078] The steering control circuit includes two conversion devices and a self-holding circuit.

[0079] The conversion devices 1 and 2 are devices that can send signals after a moving body arrives. They include various devices in the mechanical major series and the electronic major series. In the example, common mechanical limit switches are used. Two mechanical limit switches are respectively set at the starting point of the retractable combined swing arm in the cleaning system and the position where movement in the other direction is required. The output ends of the two mechanical limit switches are respectively connected to the two input ends of the self-holding circuit. Therefore, after the movable arm reaches the position of the mechanical limit switch, different signals are sent to the bidirectional rotating DC motor to control the rotation of the bidirectional rotating DC motor.

[0080] The self-holding circuit is a circuit that can maintain a state after receiving a signal and maintain another state after receiving a new different type of signal. In the example, a commonly used RS circuit is adopted. The two input ends of the RS circuit are respectively connected to the two output ends of the mechanical limit switch, and the two output ends of the RS circuit are respectively connected to the two input ends of the motor steering circuit.

[0081] The motor steering circuit uses two relays to form an existing bridge structure. The common contact ends of the two relay switches respectively become the two output ends of the motor steering circuit and are connected to the two power input ends of the bidirectional rotating motor. The normally open contact points of the two relays are connected to the power supply, and the normally closed contact points of the two relays are connected to the ground wire; the ends controlled by the energization of the two relay coils respectively become the two signal input ends of the motor steering circuit.

[0082] The above composition and connection relationships form the following logical principles. First, after the power system transmits power to the traction system, the conveyor belt can form a circular motion in both forward and reverse directions to relevant positions, so that the wiper blades in the cleaning system can perform cleaning work in both forward and reverse directions. Second, under the action of the conversion device, the starting position, end position, and steering position of the wiper blades in the cleaning system will be precisely controlled. Third, the wiper blades in the cleaning system can perform reciprocating motions of more than 180 degrees to achieve a comprehensive cleaning of the glass.

[0083] It should be noted that there are multiple connection points between the B end of the combined swing arm and the vehicle body. It can be installed in the middle of the upper or lower frame of the windshield or near the main driver's cab. In the initial state, the combined swing arm lies horizontally on the upper or lower frame of the windshield. At this time, the conveyor belt pulls the combined swing arm to form a swing of greater than or equal to 180 degrees to achieve the effect of comprehensive cleaning.

[0084] It can also be installed on both sides of the upper or lower frame of the windshield. In the initial state, the combined swing arm is perpendicular to the left or right frame of the windshield. At this time, the conveyor belt pulls the combined swing arm to form a swing of greater than or equal to 90 degrees to achieve the effect of comprehensive cleaning. Therefore, the installation points are flexible. The combined swing arm moves following the traction force of the conveyor belt, so there are no special requirements for the installation points.

[0085] The greatest advantages of flexible installation are as follows. First, it creates favorable conditions for the installation of this application in other means of transportation or office spaces, etc. Second, it creates conditions again for the applicant's proposed second expansion.

[0086] Therefore, this application has subsequent expansion functions.

[0087] V. Significance of Technical Measure 10 It creates various favorable conditions for the adoption of the macroscopic concept of circumferential traction and can realize all the functions described in the advantages section.

[0088] It should be understood that this application is not limited to the structures shown in the above-described drawings. Those formed by making certain modifications and changes also fall within the protection scope of this application.

[0089] The above has described the examples disclosed in this application. The above description is exemplary and not exhaustive, so it is not limited to the various examples described above.

[0090] The terms used in this article are intended to best explain the principles of various examples rather than to limit. Those with the same logical function but different names also fall within the protection scope of this application.

Claims

1. A traction cleaner, characterized in that: Including traction system and cleaning system; The traction system can receive power transmission, and the cleaning system performs surrounding cleaning under the drive of the traction system; When working, after receiving power, the traction system drives the cleaning system to clean the required glass; The main component in the traction system is a circular closed conveyor belt, which is placed around the cleaning glass. Under the action of power, the conveyor belt can reciprocate around the cleaning glass. One end N of the retractable combined swing arm in the cleaning system is connected to the conveyor belt, and the other end B is directly or indirectly connected to the car body. The retractable combined swing arm in the cleaning system can form a repeated rotation mode not limited to 180 degrees. Based on the above connection relationship, the following logical relationship can be formed; When working, the retractable combined swing arm in the cleaning system, on the one hand, moves back and forth in a circular part along the periphery of the glass under the action of the conveyor belt, and on the other hand, it can extend and retract to adapt to the length during the movement, thereby maximizing the cleaning of the glass; In the traction state, the retractable combined swing arm in the cleaning system forms a lever in motion. The end B connected to the car body becomes the fulcrum of the lever, and the end N connected to the conveyor belt forms the force point of the lever in the motion process. Therefore, when the retractable combined swing arm is in circular motion, the conveyor belt can obtain the best traction effect with the minimum force. From the perspective of strength, it is guaranteed not to be restricted by the size of the cleaning glass area and the surrounding shape. Because the retractable combined swing arm and the conveyor belt in the cleaning system are tightly connected, any point in the trajectory of the conveyor belt movement can reliably ensure that the retractable combined swing arm in the cleaning system is completely pulled out or retracted. The combined swing arm changes along the trajectory of the conveyor belt movement. Therefore, it can not only be used on the windshield in front of the car driving platform with smaller glass, but also can be used on other vehicles with large glass surfaces, or on buildings.

2. The traction cleaner according to claim 1, characterized in that: The traction system mainly includes a conveyor belt with a conveying function and a support series composed of multiple supports. One end of the support is directly or indirectly fixed on the periphery of the glass to be cleaned. The conveyor belt is placed outside the support series around the enclosed pattern. Under the action of external power, the conveyor belt will reciprocate around the edge of the pattern determined by the outer sides of the multiple supports, that is, drive the combined swing arm in the cleaning system to reciprocate around the periphery of the glass to be cleaned.

3. The traction cleaner according to claim 2, characterized in that: The supports in the support series have shapes that regulate the movement of the conveyor belt, or have restrictors. When the conveyor belt moves in a circular motion according to the pattern determined by the support series, the conveyor belt will not fall off the supports.

4. A traction cleaner according to claim 2, characterized in that: The traction system also includes a series of limiters composed of multiple limiters for regulating the movement of the conveyor belt, which are fixedly installed on the outside of the periphery of the pattern determined by the support series. The fixed limiters are higher than the height of the conveyor belt leaving the glass. A width for the conveyor belt to move freely is reserved between the limiters and the supports. The installed limiters limit the conveyor belt from escaping from the constraints of the supports from the outside during movement.

5. A traction cleaner according to claim 1, characterized in that: The cleaning system includes a retractable combined swing arm and a cleaning blade connected to the combined swing arm; the B end of the combined swing arm is connected and installed at an appropriate place on the main body of the glass to be cleaned, and the connection relationship is such that the B end enables the combined swing arm to rotate. The top end N of the combined swing arm that can extend outwards is connected to the conveyor belt, and a cleaning blade is installed on the side of the combined swing arm close to the glass.

6. The traction cleaner according to claim 5, wherein: The combined swing arm includes a fixed arm and a movable arm. Between the movable arm and the conveyor belt, a connecting piece of a certain length can be bent at a certain angle, and the two ends of this piece are respectively connected to the movable arm and the conveyor belt. The part of the connecting piece bent to connect the conveyor belt is higher than the height of the support, so as to form a series of heights where the movable arm is higher than the support, and it will not become an obstacle to the support during the movement of the cleaning system.

7. A traction cleaner according to claim 5, characterized in that: Both the movable arm and the fixed arm are long-shaped, and there is a movable connection mechanism between the movable arm and the fixed arm, so that the movable arm can extend or retract within the fixed arm, and there is a structure to limit the separation of the movable arm from the fixed arm between the two.

8. The traction cleaner according to claim 1, characterized in that: It also includes a power system. The power system includes a bidirectional rotating DC motor and a supporting circuit part that controls the logical law of the DC motor. Under the action of the power system, the traction system drives the combined swing arm in the cleaning system to make a reciprocating motion of not less than 180 degrees, so as to achieve a comprehensive cleaning of the glass to be cleaned.

9. The traction cleaner according to claim 8, characterized in that: The supporting circuit part in the power system includes a steering control circuit and a motor steering circuit; the output end of the supporting circuit part is connected to the power input end of the bidirectional rotating DC motor, and two signals with opposite phases can be sent to the power input end of the bidirectional rotating DC motor.

10. A traction cleaner according to claims 1-9, characterized in that: It includes a traction system and a cleaning system; the traction system can receive power transmission, and the cleaning system makes a circular cleaning driven by the traction system; in addition, it also includes a power system; During operation, the logical relationship between the traction system driving the cleaning system to clean the required glass after receiving the power transmitted by the power system; Based on the above logical relationship, as well as the connections and structures of claims 1-9, the following working states and effects are formed: During operation, the retractable combined swing arm in the cleaning system, on the one hand, makes a reciprocating motion of the circular part along the periphery of the glass under the action of the conveyor belt, and on the other hand, can extend and retract to adapt to the length during the movement process, so as to achieve the maximization of glass cleaning; In the state of traction movement, the retractable combined swing arm in the cleaning system forms a lever during movement. The B end connected to the car body becomes the fulcrum of the lever, and the end N connected to the conveyor belt forms the acting point of the lever during the movement process. During the circular movement of the combined swing arm, the conveyor belt can obtain the best traction effect with the smallest force, and from the perspective of force, it is ensured that it is not restricted by the size of the glass to be cleaned and the peripheral shape; Based on the fact that the conveyor belt makes a circular movement outside the figure determined by each support, the supports can be installed flexibly, can enclose various special-shaped peripheral shapes, and are not affected by the area size; Moreover, since the retractable combined swing arm and the conveyor belt in the cleaning system are closely connected, any point on the movement trajectory of the conveyor belt can reliably ensure the complete traction extension or retraction of the combined swing arm. The combined swing arm changes with the movement trajectory of the conveyor belt. Therefore, it can be used not only for the windshield in front of the driver's seat of a car with a small glass, but also on other means of transportation with a large glass surface or on buildings. Based on the fact that the power system can adopt various methods to effectively transmit to the traction system, the retractable combined swing arm in the cleaning system can achieve rotation in two directions not limited to 180 degrees to ensure the cleaning effect. Also, because the traction system forms a surrounding traction relationship with the cleaning system, the retractable combined swing arm can follow the conveyor belt to the required logical position of the trajectory, creating good conditions for expanding functions. Due to the reasons mentioned above, the technical measures have created various favorable conditions for adopting the macroscopic concept of surrounding traction.

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