Crushing type scraper vehicle and cleaning system

Abstract

The utility model discloses a crushing type scraper vehicle and a cleaning system, the crushing type scraper vehicle comprises a vehicle body, the vehicle body is provided with a cleaning assembly, and the cleaning assembly is used for concentrating materials in the moving process of the vehicle body; the cleaning assembly comprises a cleaning scraping plate and a crushing part; the number of the crushing part is one, the crushing part is arranged on one side of the cleaning scraper, and a plurality of crushing teeth are arranged on the crushing part in the length direction of the cleaning scraper. Or the number of the crushing parts is two, the two crushing parts are arranged on the two sides of the cleaning scraper blade, and each crushing part is provided with a plurality of crushing teeth arranged in the length direction of the cleaning scraper blade. By adopting the scheme, the crushing type scraper truck and the cleaning system provided by the utility model have the advantages that fixed materials are crushed through the crushing piece and are concentrated through the cleaning scraper.

Description

Technical Field

[0001] The utility model belongs to the field of material cleaning, and in particular relates to a crushing type scraper vehicle and a cleaning system. Background Art

[0002] The conveyor belt transmission system is one of the mainstream transmission systems, which places the material to be transmitted on the conveyor belt so that the material is transmitted along the conveyor belt.

[0003] Among them, conveyor belt transmission systems are often used in mining, metallurgy, coal and other industries, so that ore, coal, sand and stone and other materials are transmitted through conveyor belts. In addition, during the transmission process of materials in the aforementioned fields, a large amount of materials are scattered on the ground below the conveyor belt due to various reasons such as dust, materials briefly adhering to the conveyor belt surface when discharging, and materials falling from both sides of the conveyor belt. In order to prevent the materials scattered on the ground from accumulating and contacting the conveyor belt and affecting the normal operation of the conveyor belt, a reciprocating scraper truck is usually used to push and clean the materials scattered on the ground. Specifically, the scraper truck moves along the length direction of the conveyor belt, and a scraper is set on the scraper truck. During the movement of the scraper truck, the materials unevenly scattered on the ground along the length direction of the conveyor belt are affected by the scraper and move with the scraper truck to achieve material concentration. The concentrated materials can be processed by dropping materials, cleaning and other methods.

[0004] The shortcomings of the above-mentioned scraper vehicle are that some materials are fixed to the ground due to their stickiness, etc., making it impossible for the scraper to clean these materials, and the scraper will be irreversibly deformed and damaged if it forcibly passes over these materials, resulting in an uneven scraper surface that affects the cleaning effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a crushing scraper vehicle and a cleaning system which can crush fixed materials through crushing parts and concentrate the materials through cleaning scrapers.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A crushing scraper vehicle, characterized in that: it includes a vehicle body, on which a cleaning assembly is provided, and the cleaning assembly is used to concentrate materials during the movement of the vehicle body; the cleaning assembly includes a cleaning scraper and a crushing piece; the number of the crushing piece is one, the crushing piece is arranged on one side of the cleaning scraper, and the crushing piece is arranged with a plurality of crushing teeth arranged along the length direction of the cleaning scraper; or the number of the crushing pieces is two, the two crushing pieces are arranged on both sides of the cleaning scraper, and each of the crushing pieces is arranged with a plurality of crushing teeth arranged along the length direction of the cleaning scraper.

[0008] The utility model is further configured as follows: the cleaning scraper is arranged obliquely, and the inclination direction of the cleaning scraper is downward and inclined toward the movement direction of the vehicle body; the crushing teeth are arranged on the side of the cleaning scraper inclined upward.

[0009] The utility model is further configured as follows: the cleaning assembly comprises a mounting seat, the cleaning scraper and the crushing piece are arranged on the mounting seat, and the mounting seat is rotatably arranged on the vehicle body; the mounting seat is flipped in different directions to lift or drop the cleaning scraper and the crushing piece.

[0010] The utility model is further configured as follows: a traction member is slidably arranged on the vehicle body, and the traction member and the mounting seat are linked to enable the traction member to move in different directions relative to the vehicle body and drive the mounting seat to flip in different directions.

[0011] The utility model is further configured as follows: a linkage member is arranged between the traction member and the mounting seat, and two ends of the linkage member respectively hinge the traction member and the mounting seat.

[0012] The utility model is further configured as follows: a reset member is arranged between the traction member and the vehicle body, and the reset member enables the traction member to slide relative to the vehicle body through a reset action, thereby linking the cleaning scraper and the crushing member to be lifted.

[0013] The utility model is further configured as follows: a travel positioning member is arranged on the traction member, and the vehicle body is located on the movement track of the travel positioning member.

[0014] The utility model is further configured as follows: the number of the cleaning components is two groups, and each group of the cleaning components is located on both sides of the vehicle body.

[0015] By adopting the above technical solution, the scraper truck is used to concentrate the materials scattered on the plane to be cleaned to the left. Specifically, the vehicle body moves from right to left. During the movement, the cleaning scraper pushes the scattered materials to the left to achieve concentration. In addition, the materials fixed on the required cleaning plane are first acted upon by the crushing parts before contacting the cleaning scraper, so that the pointed crushing teeth act on the materials fixed on the required cleaning plane to peel the materials off the plane or directly destroy the materials. After that, the materials can be concentrated to the left under the action of the cleaning scraper to prevent the materials fixed on the required cleaning plane from acting on the cleaning scraper and damaging the cleaning scraper, and to make the cleaning more complete.

[0016] A cleaning system, characterized in that it includes a frame, a traction mechanism, and the above-mentioned crushing scraper vehicle, wherein the frame is provided with a cleaning track, the vehicle body is slidably arranged on the cleaning track, and the traction mechanism is used to drive the vehicle body to slide; a cleaning surface is provided on the cleaning track, and the material on the cleaning surface is cleaned by the cleaning scraper and the crushing parts during the sliding process of the vehicle body along the cleaning track.

[0017] The utility model is further configured that: the surface of the cleaning surface is coated with a polyvinyl chloride layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is an assembly diagram of the first embodiment of the utility model;

[0020] Figure 2 It is a cross-sectional view of the first embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the traction member in the first embodiment of the utility model facing leftwards to make the cleaning scraper and the crushing member fall down;

[0022] Figure 4 This is a schematic diagram of the traction member facing rightwards in the first embodiment of the utility model so as to lift the cleaning scraper and the crushing member;

[0023] Figure 5 for Figure 1 A magnified view of middle;

[0024] Figure 6 for Figure 2 Enlarged view of middle B;

[0025] Figure 7 This is an assembly diagram of the third embodiment of the present utility model;

[0026] Figure 8 It is a cross-sectional view of the third embodiment of the present utility model;

[0027] Fig. 9 for Figure 7 Enlarged view of middle C;

[0028] Fig.10 This is an assembly diagram of the fourth embodiment of the present utility model which lacks a traction mechanism;

[0029] Fig.11 It is a cross-sectional view of the fourth embodiment of the present utility model.

[0030] Description of reference numerals:

[0031] 1. Car body;

[0032] 11. Roller;

[0033] 2. Clean up components;

[0034] 21. Cleaning scraper; 22. Crushing parts; 23. Mounting seat; 24. Connecting seat;

[0035] 221, broken teeth;

[0036] 3. Traction parts;

[0037] 4. Linkage parts;

[0038] 5. Reset parts;

[0039] 6. Travel positioning parts;

[0040] 61. first component; 62. second component;

[0041] 71, first pin shaft; 72, second pin shaft;

[0042] 8. Rack;

[0043] 81. Clean the track; 82. Clean the surface;

[0044] 9. Traction mechanism;

[0045] 91. Gear shaft; 92. Traction chain. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the present invention, and thus to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, wherein the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and each specific feature does not naturally and directly limit the scope of implementation of the present invention. The conventional selections and substitutions made by those skilled in the art under the guidance of the present invention shall be deemed to be within the scope of protection claimed by the present invention.

[0047] Embodiment 1:

[0048] like Figure 1-Figure 6 As shown, the utility model discloses a crushing scraper vehicle, comprising:

[0049] The vehicle body 1 is formed by welding or bolting a plurality of square tubes, and is square in shape as a whole. Rollers 11 are arranged on the square tubes at the front and rear sides of the vehicle body 1, so that the vehicle body 1 can slide in the left and right directions by rolling the rollers 11;

[0050] The cleaning component 2 is arranged on the left side of the vehicle body 1, so that when the vehicle body 1 slides to the left, the cleaning component 2 can push the scattered materials on the movement track of the vehicle body 1 to the left and concentrate them.

[0051] Specifically, the cleaning assembly 2 includes a cleaning scraper 21 and a crushing member 22. The cleaning scraper 21 is in the shape of a long strip extending forward and backward, and the lower end of the cleaning scraper 21 is used to abut against the plane to be cleaned, so that when the vehicle body 1 slides to the left, the cleaning scraper 21 pushes and concentrates the scattered materials on the left side to the left. In addition, the crushing member 22 is arranged on the left side of the cleaning scraper 21, and the crushing member 22 is arranged with a plurality of crushing teeth 221 arranged in the front-to-back direction, and each crushing tooth 221 faces to the left, so that when the vehicle body 1 moves to the left, the fixed materials are crushed by the pointed crushing teeth 221.

[0052] Therefore, the scraper truck is used to concentrate the materials scattered on the plane to be cleaned to the left. Specifically, the vehicle body 1 moves from right to left. During the movement, the cleaning scraper 21 pushes the scattered materials to the left to achieve concentration. In addition, the materials fixed on the desired cleaning plane are first acted upon by the crushing member 22 before contacting the cleaning scraper 21, so that the pointed crushing teeth 221 act on the materials fixed on the desired cleaning plane to peel the materials off the plane or directly destroy the materials. After that, the materials can be concentrated to the left under the action of the cleaning scraper 21 to prevent the materials fixed on the desired cleaning plane from acting on the cleaning scraper 21 and damaging the cleaning scraper 21, and to make the cleaning more complete.

[0053] In addition, the cleaning scraper 21 in this embodiment is arranged at an angle, and the inclination direction of the cleaning scraper 21 is downward and to the left; so that when the vehicle body 1 moves to the left, the scattered materials are moved upward along the cleaning scraper 21 under the action of the cleaning scraper 21, preventing the accumulation of materials at the lower end of the cleaning scraper 21 so that the lower end of the cleaning scraper 21 is subjected to excessive force and bent.

[0054] Correspondingly, the crushing tooth 221 is arranged on the side of the cleaning scraper 21 that is tilted upward, and the tip of the crushing tooth 221 extends toward the upper left. Specifically, the angle between the tip of the crushing tooth 221 and the horizontal plane is α, α≤5°. Therefore, the component of the force of the crushing tooth 221 acting on the material is mainly toward the left, and has a certain upward component, which better peels the material off the plane.

[0055] In addition, the cleaning assembly 2 in this embodiment includes a mounting seat 23, and the cleaning scraper 21 and the crushing member 22 are both arranged on the mounting seat 23, and are fixedly installed by the cooperation of bolts and nuts.

[0056] The front and rear sides of the mounting seat 23 are rotatably arranged on the vehicle body 1 by adopting pin shafts, so that the mounting seat 23 is turned upward to synchronously drive the cleaning scraper 21 and the crushing piece 22 to be lifted, and the mounting seat 23 is turned downward to synchronously drive the cleaning scraper 21 and the crushing piece 22 to fall.

[0057] Therefore, it is only necessary to take the left side of the plane to be cleaned as the concentrated position. When the vehicle body 1 is located on the right side of the plane to be cleaned, the cleaning scraper 21 and the crushing piece 22 are dropped by flipping down the mounting seat 23, and during the movement of the vehicle body 1 to the left, the cleaning component 2 effectively concentrates the materials scattered on the plane to the left at the concentrated position. After the vehicle body 1 moves to the concentrated position, the cleaning scraper 21 and the crushing piece 22 are lifted by flipping up the mounting seat 23, and during the retreat of the vehicle body 1 to the right, the cleaning component 2 will not contact the materials scattered on the plane, thereby preventing the materials from being moved away from the concentrated position and being pushed ineffectively.

[0058] Preferably, the vehicle body 1 in this embodiment is provided with a traction member 3 that slides in the left and right directions, and the traction member 3 and the mounting seat 23 are arranged in linkage. Therefore, by driving the traction member 3 to move to the left, the vehicle body 1 is driven to move to the left, and the mounting seat 23 is driven to flip downward to make the cleaning scraper 21 and the crushing member 22 fall, and the cleaning scraper 21 and the crushing member 22 that have fallen collect the materials in the process of moving to the left, and by driving the traction member 3 to move to the right, the vehicle body 1 is driven to move to the right, and the mounting seat 23 is driven to flip upward to lift the cleaning scraper 21 and the crushing member 22, and the lifted cleaning scraper 21 and the crushing member 22 do not contact with the materials in the process of moving to the right to achieve effective retreat.

[0059] Specifically, a rod-shaped linkage member 4 is provided between the traction member 3 and the mounting seat 23 , and two ends of the linkage member 4 respectively hinge the traction member 3 and the mounting seat 23 .

[0060] In addition, a reset member 5 is provided between the traction member 3 and the vehicle body 1 in this embodiment. Specifically, the reset member 5 adopts a compression spring, and the left end of the reset member 5 abuts against the vehicle body 1, and the right end abuts against the traction member 3 so that the reset force generated by the reset member 5 can push the traction member 3 to the right, so that when the traction member 3 moves to the right relative to the vehicle body 1, the mounting seat 23 is synchronously driven to flip up, and the flipped mounting seat 23 is linked to realize the lifting of the cleaning scraper 21 and the crushing member 22. Therefore, when the vehicle body 1 is located on the right side of the plane to be cleaned, the traction member 3 is pushed to the right under the action of the reset member 5 to flip the mounting seat 23 to lift the cleaning scraper 21 and the crushing member 22, and then the traction member 3 is pulled to the left and the reset member 5 is further compressed to flip the mounting seat 23 to drop the cleaning scraper 21 and the crushing member 22, so that the vehicle body 1 moves to the left and is cleaned by the cleaning scraper 21 and the crushing member 22. After reaching the leftmost end, the traction member 3 stops moving, and under the action of the reset member 5, the traction member 3 is reset to the right to flip the mounting seat 23 to lift the cleaning scraper 21 and the crushing member 22, and then the traction member 3 is pulled to the right, and the cleaning scraper 21 and the crushing member 22 are stably kept in a lifted state during the traction process to prevent the material from being pushed to the right.

[0061] The two ends of the reset member 5 can be welded, inserted or sleeved by a column or a cylinder to ensure the stability of the reset member 5 .

[0062] In addition, a stroke positioning member 6 is provided on the traction member 3 in this embodiment, and the vehicle body 1 is located on the movement trajectory of the stroke positioning member 6, so that the relative displacement stroke of the traction member 3 and the vehicle body 1 is limited by the stroke positioning member 6, and the excessive movement of the traction member 3 relative to the vehicle body 1 causing the mounting seat 23 to flip over excessively is prevented. The stroke positioning member 6 can directly apply the force of the traction member 3 to the vehicle body 1, preventing the transmission of force through the mounting seat 23 as an intermediate structure, thereby protecting the mounting seat 23.

[0063] Specifically, the travel positioning member 6 includes a first component 61 and a second component 62. The first component 61 is on the left side of the traction member 3, and the second component 62 is on the right side of the traction member 3. Both are located in the square structure of the vehicle body 1. The first component 61 approaches and abuts against the square tube on the left side of the vehicle body 1 when the traction member 3 moves to the left, and the second component 62 approaches and abuts against the square tube on the right side of the vehicle body 1 when the traction member 3 moves to the right.

[0064] Specifically, the first component 61 and the second component 62 each include a bolt body and a plurality of nuts, and holes are respectively arranged on the traction member 3 corresponding to each bolt body so that the nut thread fits in the bolt body, and nuts are arranged on both sides of the hole, and the bolt body is fixed by clamping the nut in the hole, wherein the bolt body can be adjusted in the left and right directions to achieve stroke adjustment.

[0065] Embodiment 2:

[0066] A crushing scraper truck, whose main structure is the same as that of the first embodiment, except that a cleaning component 2 is fixedly arranged on the vehicle body 1, so that when the vehicle body 1 moves to the left, the cleaning component 2 collects the scattered materials to the left, and when the vehicle body 1 moves to the right, the cleaning component 2 collects the scattered materials to the right.

[0067] In addition, there are two crushing parts 22 on the cleaning component 2, and the two crushing parts 22 are arranged on the left and right sides of the cleaning scraper 21, so that the crushing part 22 on the left side crushes the material fixed on the movement trajectory when the vehicle body 1 moves to the left, and the crushing part 22 on the right side crushes the material fixed on the movement trajectory when the vehicle body 1 moves to the right.

[0068] Embodiment three:

[0069] like Figure 7-Figure 9 As shown, a crushing scraper truck has the same main structure as that of the first embodiment, except that there are two groups of cleaning components 2, one group of cleaning components 2 is located on the left side of the vehicle body 1, and the other group of cleaning components 2 is located on the right side of the vehicle body 1.

[0070] In which, when the traction member 3 moves to the left, the mounting seats 23 of the two groups of cleaning components 2 are flipped downward so that the cleaning scrapers 21 and crushing members 22 of each group of cleaning components 2 fall to clean the materials, and when the traction member 3 moves to the right, the mounting seats 23 of the two groups of cleaning components 2 are flipped upward so that the cleaning scrapers 21 and crushing members 22 of each group of cleaning components 2 are lifted up without contacting the materials.

[0071] Therefore, when the vehicle body 1 moves to the left, the cleaning component 2 on the left side plays the main role in cleaning the materials, while the cleaning component 2 on the right side concentrates the materials that have not been cleaned by the cleaning component 2 on the left side to the left, and can clean the areas that cannot be covered by the cleaning component 2 on the left side, making the cleaning more efficient and comprehensive.

[0072] Specifically, a connecting seat 24 extending upward is welded to the middle of the right side of the mounting seat 23 in the cleaning component 2 on the right side, and the traction member 3 is located on the left side of the connecting seat 24 and is welded or plugged with a first pin shaft 71. The linkage member 4 in the cleaning component 2 on the right side adopts two runway-shaped sheets, both ends of each sheet are perforated, and the perforation at the left end is pierced by the first pin shaft 71 to achieve hinged connection to the traction member 3, while the perforation at the right end and the upper end of the connecting seat 24 are hinged by setting a second pin shaft 72. In addition, anti-slipping is achieved by a cotter pin to ensure the stability of the connection between the traction member 3, the linkage member 4, and the mounting seat 23.

[0073] Embodiment 4:

[0074] like Figure 10-11As shown, a cleaning system includes a frame 8, a traction mechanism 9, and a crushing scraper vehicle as described in any one of Examples 1 to 3. A cleaning track 81 is provided on the frame 8, and the cleaning track 81 extends in the left-right direction, and the left side serves as a discharge end. Since the present structure is mainly used in mining, metallurgy, coal and other fields, the discharge end is the discharge port of the conveyor belt system, so that the scattered materials are gathered toward the discharge end and gathered with the materials being discharged. The vehicle body 1 is slidably arranged on the cleaning track 81 by means of rollers 11, and the traction mechanism 9 is used to drive the vehicle body 1 to slide. In addition, a cleaning surface 82 is provided on the cleaning track 81, and the material on the cleaning surface 82 is cleaned by the cleaning scraper 21 and the crushing member 22 during the sliding process of the vehicle body 1 along the cleaning track 81.

[0075] Specifically, the traction mechanism 9 in this embodiment includes a driving motor (not shown in the figure), two gear shafts 91 and a traction chain 92. The two gear shafts 91 are respectively arranged at the left and right ends of the cleaning track 81. The traction chain 92 and the gear shaft 91 are meshed to enable the movement of the traction chain 92 under the rotation of the gear shaft 91. The traction chain 92 is also connected to the traction member 3 to drive the traction member 3 to move during movement, thereby driving the vehicle body 1 to move. The driving motor is installed on the frame 8 and is connected to one of the gear shafts 91 directly or through a reducer to drive the gear shaft 91 to rotate.

[0076] Preferably, the surface of the cleaning surface 82 in this embodiment is coated with a polyvinyl chloride layer, so that under the action of the polyvinyl chloride layer, it is not easy for materials to stick to the cleaning surface 82, thereby making cleaning more convenient.

[0077] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crushing scraper truck, characterized in that: The vehicle comprises a vehicle body (1), wherein a cleaning assembly (2) is arranged on the vehicle body (1), and the cleaning assembly (2) is used to collect materials during the movement of the vehicle body (1); The cleaning assembly (2) comprises a cleaning scraper (21) and a crushing member (22); The number of the crushing member (22) is one, the crushing member (22) is arranged on one side of the cleaning scraper (21), and the crushing member (22) is provided with a plurality of crushing teeth (221) arranged along the length direction of the cleaning scraper (21); or, The number of the crushing pieces (22) is two, and the two crushing pieces (22) are arranged on both sides of the cleaning scraper (21). Each crushing piece (22) is provided with a plurality of crushing teeth (221) arranged along the length direction of the cleaning scraper (21).

2. The crushing scraper vehicle according to claim 1, characterized in that: The cleaning scraper (21) is arranged in an inclined manner, and the inclination direction of the cleaning scraper (21) is downward and inclined towards the movement direction of the vehicle body (1); The crushing teeth (221) are arranged on the side of the cleaning scraper (21) that is inclined upward.

3. The crushing scraper vehicle according to claim 1, characterized in that: The cleaning assembly (2) comprises a mounting seat (23), the cleaning scraper (21) and the crushing member (22) are arranged on the mounting seat (23), and the mounting seat (23) is rotatably arranged on the vehicle body (1); The mounting seat (23) is turned in different directions to enable the cleaning scraper (21) and the crushing member (22) to be lifted or lowered.

4. The crushing scraper vehicle according to claim 3, characterized in that: A traction member (3) is slidably disposed on the vehicle body (1), and the traction member (3) and the mounting seat (23) are arranged in linkage so that the traction member (3) moves in different directions relative to the vehicle body (1) and drives the mounting seat (23) to flip in different directions.

5. The crushing scraper vehicle according to claim 4, characterized in that: A linkage member (4) is provided between the traction member (3) and the mounting seat (23), and two ends of the linkage member (4) respectively hinge the traction member (3) and the mounting seat (23).

6. The crushing scraper vehicle according to claim 4, characterized in that: A reset member (5) is provided between the traction member (3) and the vehicle body (1), and the reset member (5) causes the traction member (3) to slide relative to the vehicle body (1) through a reset action, thereby linking the cleaning scraper (21) and the crushing member (22) to be lifted.

7. The crushing scraper vehicle according to claim 4, characterized in that: The traction member (3) is provided with a travel positioning member (6), and the vehicle body (1) is located on the movement track of the travel positioning member (6).

8. The crushing scraper vehicle according to any one of claims 1 to 7, characterized in that: The number of the cleaning components (2) is two groups, and each group of the cleaning components (2) is located on both sides of the vehicle body (1).

9. A cleaning system, characterized in that: It comprises a frame (8), a traction mechanism (9), and a crushing scraper vehicle according to any one of claims 1 to 8, wherein a cleaning track (81) is arranged on the frame (8), the vehicle body (1) is slidably arranged on the cleaning track (81), and the traction mechanism (9) is used to drive the vehicle body (1) to slide; A cleaning surface (82) is provided on the cleaning track (81), and materials on the cleaning surface (82) are cleaned by a cleaning scraper (21) and a crushing member (22) during the sliding movement of the vehicle body (1) along the cleaning track (81).

10. The cleaning system according to claim 9, characterized in that: The surface of the cleaning surface (82) is coated with a polyvinyl chloride layer.

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