A subway disinfection seat

Abstract

The present invention relates to a subway disinfection seat. There is a curved surface cover plate that can be movably opened and closed outside the seat back. A disinfection liquid storage cavity and a fixing part are fixedly installed inside the seat back. A disinfection roller and a drying roller that can movably enter and exit the curved surface cover plate are arranged inside the seat back. The disinfection roller is connected to the drying roller through a first connecting rod. A second connecting rod is connected at the central position of the first connecting rod. The second connecting rod is connected to a power control module. The disinfection liquid storage cavity is movably connected to the disinfection roller through a cross bar. Spray holes are provided on the fixing part. The disinfection liquid storage cavity is connected to the spray holes through a conduit. In the non-working state, the drying roller and the disinfection roller are arranged in an up-and-down structure, and the spray holes are arranged above the disinfection roller. In the disinfection state, the second connecting rod drives the first connecting rod to rotate, and then drives the drying roller and the disinfection roller to extend out from the curved surface cover plate. Compared with the prior art, the present invention has the advantages of convenient operation and manpower saving.

Description

Technical Field

[0001] The present invention relates to the field of subway car facilities, and particularly to a disinfected subway seat. Background Art

[0002] With the rapid development of urban rail transit, more and more people choose to travel by subway, and the sanitation problem in public places is directly related to the living health level of the people. As one of the facilities in the subway car that directly contacts people, the cleanliness of the seat directly affects the riding comfort and health of passengers, and is more related to the quality and image of public services. Therefore, it is necessary to develop a disinfected subway seat.

[0003] In addition, when the train is emptied of passengers, cleaning the seats is time-consuming and laborious, which greatly wastes human resources. At the same time, when the subway train is running, it is impossible to clean the subway seats multiple times a day, especially in stations with large passenger flows, and the health and sanitation of passengers' travel cannot be fully guaranteed.

[0004] In addition, the current cleaning of subway seats is only uniformly completed by cleaning staff when the passengers are emptied. Passengers themselves cannot disinfect the seats when there is a disinfection need. The subway seats only have a loading function, and no other functions are set outside the seat body, resulting in a waste of resources. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a disinfected subway seat that can automatically and quickly disinfect the seats of subway trains, thereby ensuring public health and sanitation.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A subway disinfection seat, comprising a seat body, the seat body is provided with a seat surface and a backrest, a curved surface cover plate that can be movably opened and closed is arranged on the outer wall of the backrest, a power control module, a disinfection liquid storage cavity, a fixing part, and a disinfection roller, a drying roller, a first connecting rod, and a second connecting rod that can movably enter and exit the seat are arranged inside the backrest. The curved surface cover plate is connected to a first servo motor. Two first connecting rods are respectively connected to both sides of the disinfection roller and the drying roller. One end of each of the two second connecting rods is connected to the middle part of a first connecting rod through a ball joint, and a second servo motor is arranged at the connection part. The other end of the second connecting rod is connected to a sliding mechanism, and the sliding mechanism is connected to a third servo motor. Each servo motor is respectively connected to the power control module. The disinfection liquid storage cavity is movably connected to the disinfection roller through a cross bar. The fixing part is provided with a spray hole, and the disinfection liquid storage cavity is connected to the spray hole through a conduit. In the non-working state, the drying roller and the disinfection roller are arranged in an up-and-down structure, and the spray hole is arranged above the disinfection roller. In the disinfection state, the power control module controls the movement of the second connecting rod, drives the first connecting rod to rotate, and further drives the drying roller and the disinfection roller to extend out from the curved surface cover plate.

[0008] Further, the disinfection roller and the drying roller are of a cylindrical drum structure, the inside of each drum is a hollow structure, a fiber material piece is arranged outside the drum of the disinfection roller, and a water-absorbing material piece is arranged outside the drum of the drying roller. Two first connecting rods are respectively connected to both sides of the two rollers, and the connecting parts respectively bulge towards the centers of the corresponding drums.

[0009] Further, the drying roller and the disinfection roller have the same size.

[0010] Further, the fixing part includes a first fixed cross plate, a support plate, and a second fixed cross plate. The support plate is an arc-shaped structural plate. The top of the support plate is fixed to the inner side of the top of the backrest. The middle position of the support plate is fixedly connected to the first fixed cross plate. The bottom end of the support plate is fixedly connected to the second fixed cross plate. In the non-working state, the drying roller is arranged between the top of the support plate and the first fixed cross plate, the disinfection roller is arranged between the support plate, the first fixed cross plate, and the second fixed cross plate, the other end of the conduit is arranged at the bottom of the first fixed cross plate, and the bottom of the first fixed cross plate is provided with a spray hole.

[0011] Further, the power control module is fixed inside the backrest. The power control module includes a power supply and an STM32 series development board connected to the power supply. The STM32 series development board is connected to the first servo motor and is connected to the second servo motor on the first connecting rod and the third servo motor on the second connecting rod through servo motor extension lines. The STM32 series development board is wirelessly connected to the subway main console.

[0012] Further, a plurality of spray holes are arranged at equal intervals at the bottom of the first fixed cross plate and distributed along the axial direction of the disinfection roller.

[0013] Further, a sliding track matched with the sliding mechanism is fixed inside the chair back, the sliding mechanism is arranged on the sliding track, and the sliding mechanism is connected to a third servo.

[0014] Further, at the corresponding position of the seat and the second connecting rod, there is a gap for the second connecting rod to extend out of the seat. Seat rubber rings are respectively arranged on both sides of the gap, and the seat rubber rings are connected to the seat through springs.

[0015] Further, the water-absorbing material piece is made of absorbent cotton or an ultrafine material piece.

[0016] Further, the fiber material piece is made of collodion cotton or fiber material.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1) The subway disinfection seat of the present invention is provided with a disinfection liquid storage cavity inside. By using the motion states of the drying roller and the disinfection roller, the disinfectant in the disinfection liquid storage cavity can be sprayed onto the disinfection roller. After disinfection, by adjusting the motion positions of the drying roller and the disinfection roller, the water-absorbing material piece outside the drying roller is used to dry the seat, which can achieve a good disinfection effect on the subway seat, prevent the growth of bacteria in public places, and is suitable for cleaning multiple times a day during peak passenger flow;

[0019] 2) In the non-working state, the drying roller and the disinfection roller of the present invention are arranged inside the seat, which can make full use of the seat itself for improvement, make full use of the seat space, and improve the utilization rate of resources;

[0020] 3) The subway disinfection seat of the present invention realizes automatic disinfection and drying operations through the relative motion of the drying roller and the disinfection roller, greatly saving the labor of cleaning staff and being able to meet the real-time disinfection needs of passengers;

[0021] 4) The connecting parts of the first connecting rod and the roller respectively protrude towards the center of the roller, which can ensure that the roller can be stably rotated while being fitted on the two first connecting rods. Description of the Drawings

[0022] Figure 1 is a three-dimensional structure diagram of the subway disinfection seat in the embodiment of the present invention;

[0023] Figure 2 is a cross-sectional structure diagram of the subway disinfection seat in the embodiment of the present invention;

[0024] Figure 3 is a partial cross-sectional structure schematic diagram of the subway disinfection seat in the embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the running direction of the roller of the subway disinfection seat in the embodiment of the present invention;

[0026] As shown in the figure:

[0027] 1. First connecting rod, 2. Second connecting rod, 3. Seat main body, 4. Drying roller, 5. Disinfection liquid storage cavity, 6. Disinfection roller, 7. Power control module, 8. Spray hole, 9. Curved surface cover plate, 10. Cross bar, 11. Conduit, 12. Fixed part, 13. Seat rubber ring, 14. Gasket, 15. Sliding mechanism, 16. Sliding track, 121. First fixed cross plate, 122. Support plate, 123. Second fixed cross plate, 301. Seat surface, 302. Backrest. Detailed implementation manners

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0029] Embodiment

[0030] As Figures 1 to 4 shown, the present invention relates to a subway disinfection seat, including a seat main body 3, a first connecting rod 1, a second connecting rod 2, a drying roller 4, a disinfection roller 6, a disinfection liquid storage cavity 5 and a power control module 7.

[0031] The seat main body 3 is placed inside the subway carriage. The seat main body 3 is provided with a seat surface 301 and a backrest 302. The top of the backrest 302 is provided with a curved surface cover plate 9, and the curved surface cover plate 9 is movably connected to the outer wall of the backrest 302. There are a transverse rotating shaft and a first servo motor (not shown in the figure) at the connection between the curved surface cover plate 9 and the outer wall of the backrest 302, and the first servo motor is connected to the power control module 7. The power control module controls the rotation of the first servo motor, and the first servo motor controls the rotation of the rotating shaft, so as to realize the opening and closing of the curved surface cover plate 9.

[0032] An accommodation cavity is provided inside the backrest 302 at a position corresponding to the curved surface cover plate 9. The accommodation cavity houses a fixed part 12, a disinfection roller 6, a drying roller 4 and a power control module 7. The fixed part 12 includes a first fixed cross plate 121, a support plate 122 and a second fixed cross plate 123. The support plate 122 is an arc-shaped structural plate. The top of the support plate 122 is fixed to the inner side of the top of the backrest 302. The middle position of the support plate 122 is fixedly connected to the first fixed cross plate 121, and the bottom end of the support plate 122 is fixedly connected to the second fixed cross plate 123. A storage cavity is formed between the support plate 122, the first fixed cross plate 121 and the second fixed cross plate 123.

[0033] The drying roller 4 and the disinfection roller 6 are arranged in an up-and-down structure in the non-working state, and they have the same size. The drying roller 4 is arranged between the top of the support plate 122 and the first fixed cross plate 121, and the disinfection roller 6 is arranged between the support plate 122, the first fixed cross plate 121 and the second fixed cross plate 123.

[0034] Figure 3 It is the cross-section of the support plate 122, the first fixed cross plate 121 and the second fixed cross plate 123, and this part is used to accommodate two rollers. The first fixed cross plate 121 is used to isolate the two rollers, and spray holes 8 are arranged below the first fixed cross plate 121 for flowing out disinfection liquid to ensure that the disinfection roller 6 is wetted. The second fixed cross plate 123 is used to prevent the disinfection liquid from flowing into the seat interior. The support plate 122 is used to connect the two fixed cross plates. When the two rollers are placed in the up-and-down structure in the accommodation cavity, it is the accommodation position.

[0035] The disinfection roller 6 and the drying roller 4 are of a cylindrical drum structure. A fiber material piece is arranged outside the drum of the disinfection roller 6, and a water-absorbing material piece is arranged outside the drum of the drying roller 4. The inside of the drum is a hollow structure. Two first connecting rods 1 are respectively connected to both sides of the two rollers, and the connecting parts protrude towards the center of the drum to ensure that the drum can be fitted on the two first connecting rods 1 and can rotate at the same time. One end of each of the two second connecting rods 2 is connected to the middle part of the first connecting rod 1 through a live ball, and a second servo motor is installed at the connection junction, and this servo motor is used to control the rotation of the first connecting rod 1. Specifically, when moving, the second servo motor is controlled by the internal power control module 7.

[0036] A sliding mechanism 15 is connected to the end of the second connecting rod 2 close to the seat side. A sliding track 16 is fixed inside the chair back 302. The sliding mechanism 15 is arranged on the sliding track 16. The sliding mechanism 15 is connected to a third servo motor, and the third servo motor is connected to the power control module 7. The sliding mechanism 15 can be made to move along the sliding track 16 through the action of the third servo motor, so as to control the up-and-down, front-and-back position movement and rotation of the second connecting rod 2. The sliding mechanism 15 adopts a slider, and the size and shape of the slider match the track size and shape of the sliding track 16.

[0037] A gap is provided at the corresponding position of the seat and the second connecting rod 2 for the second connecting rod 2 to extend out. Seat rubber rings 13 are respectively arranged on the left and right of the gap position. The part of the seat rubber ring 13 connected to the seat is elastically connected by a spring. When the second connecting rod 2 is in the storage position, the gap position is exactly blocked by the seat rubber rings 13 on the left and right sides, and the two seat rubber rings 13 are fitted together. That is, when the second connecting rod 2 does not run through the sliding mechanism 15, the rod is stored inside the subway seat. At this time, since the second connecting rod 2 does not squeeze the seat rubber rings 13, the two seat rubber rings 13 are fitted together. When the second connecting rod 2 runs along the running track of the sliding mechanism and needs to extend out from the gap, the second connecting rod 2 squeezes the two seat rubber rings 13 to make the two rubber rings open, the gap is exposed, and the second connecting rod 2 extends out from the gap, thereby driving the disinfection roller 6 and the drying roller 4 to extend out from the storage cavity.

[0038] The disinfection roller 6 is connected to the drying roller 4 through the first connecting rod 1. The disinfection roller 6 is connected to the disinfection liquid storage cavity 5 through the cross bar 10, and the disinfection liquid storage cavity 5 is fixed inside the backrest 302. A piston port is provided on the corresponding side of the disinfection liquid storage cavity 5 and the disinfection roller 6 for the cross bar 10 to enter and exit the disinfection liquid storage cavity 5. The cross bar 10 is connected to a piston push plate, and the piston push plate is connected to the disinfection liquid storage cavity 5 and can extend out or push into the disinfection liquid storage cavity 5. The gasket 14 makes the piston push plate connected to the cross bar 10 press the disinfectant liquid in the disinfection liquid storage cavity 5 to the right.

[0039] An outlet is also provided on one side of the disinfection liquid storage cavity 5. The outlet is connected to a conduit 11, and the other end of the conduit 11 is arranged at the bottom of the first fixed cross plate 121. Spray holes 8 are provided at the bottom of the first fixed cross plate 121, and the conduit 11 is connected to the spray holes 8. Specifically, a plurality of spray holes 8 are arranged at equal intervals at the bottom of the first fixed cross plate 121 and are distributed along the axial direction of the disinfection roller 6. A gasket 14 for squeezing the cross bar 10 is arranged on the outer side of the disinfection roller 6. In the storage state, the position of the gasket 14 is arranged on the same plane as the cross bar 10. When storing, the disinfection roller 6 moves, and the cross bar 10 is squeezed through the gasket 14, so that the piston push plate connected to the cross bar 10 presses the disinfectant liquid in the disinfection liquid storage cavity 5 to the right. The disinfectant liquid enters the transfer conduit 11 and then flows out to the disinfection roller 6 through the spray holes 8. The disinfection roller 6 is responsible for disinfecting the seat. A fiber material part is arranged outside the disinfection roller 6, and specifically, cotton sponge, fiber material, etc. can be used to ensure sufficient absorption of the disinfection liquid. The drying roller 4 is responsible for drying the seat. An absorbent material part is arranged outside the drying roller 4, and specifically, absorbent cotton, ultra-fine material parts, etc. can be used to ensure excellent water absorption performance.

[0040] The power control module 7 is fixed inside the backrest 302 and includes a power supply and an STM32 series development board connected to the power supply. The power control module 7 is connected to the first servo and is connected to the second servo on the first connecting rod 1 and the third servo on the second connecting rod 2 through an extension wire.

[0041] In this embodiment, as a preferred solution, the subway master console is provided with a start button capable of controlling the power control module. This button is wirelessly connected to the power control modules on each seat and can be used to uniformly start the disinfection operation of all seats.

[0042] The working principle of the present invention is as follows:

[0043] When the train is emptied of passengers and the operator needs to disinfect the seats, the operator presses the start button to start the disinfection of the seats. The start button is uniformly activated by the subway internal personnel at the master console, and the power control modules of each seat communicate with the master console through wireless connection. The curved cover plate 9 is connected to the power control module 7 through the first servo motor to achieve opening or closing.

[0044] When the curved cover plate 9 is opened, at this time, the drying roller 4 is located above and the disinfection roller 6 is located below. The power control module 7 controls the third servo motor, and then the second connecting rod 2 starts to work. The power control module 7 uses a STM32 series development board to control the servo motor to realize the movement of the rod. The second connecting rod 2 moves to the limit position under the instruction (when moving to the limit position, the drying roller 4 is located on the right and the disinfection roller 6 is located on the left). At this time, the first connecting rod 1 rotates clockwise by 180°, and the positions of the drying roller 4 and the disinfection roller 6 are reversed (that is, the drying roller 4 is located on the left and the disinfection roller 6 is located on the right). The second connecting rod 2 returns along the original path under the instruction until the second connecting rod 2 moves to the starting position (the drying roller 4 is located below and the disinfection roller 6 is located above). The first connecting rod 1 rotates clockwise by 180°, and the positions of the drying roller 4 and the disinfection roller 6 are reversed again, returning to the initial position (the drying roller 4 is located above and the disinfection roller 6 is located below). The second connecting rod 2 drives the two rollers back to the storage position, and the curved cover plate 9 closes.

[0045] As a preferred implementation, the control sequence of the power control module 7 can be set as: storage position, working position 1, working position 2, working position 3, and this is used as a cycle to circulate. In the storage position, the drying roller 4 is above and the disinfection roller 6 is below; in working position 1, the drying roller 4 is above and the disinfection roller 6 is below, and the second connecting rod 2 first moves downward and then leftward; in working position 2, the first connecting rod 1 rotates 180°, and the positions of the disinfection roller 6 and the drying roller 4 are reversed, and the second connecting rod 2 first moves rightward and then upward. Working position 3 is directly to the left of the storage position. In this state, the first connecting rod 1 rotates 180°, and the positions of the disinfection roller 6 and the drying roller 4 are reversed again to ensure that the positions are the same as when leaving when returning to the storage position. Figure 4It is a schematic diagram of the movement directions of two rollers. The two rollers first move in the direction of the thick arrow and then in the direction of the thin arrow. For example, at the illustrated position, if they are moving in the direction of the thick arrow at this time, the disinfection roller 6 is below and the drying roller 4 is above; conversely, if they are moving in the direction of the thin arrow at this time, the disinfection roller 6 is above and the drying roller 4 is below. The disinfection roller 6 picks up the disinfection liquid through the surface fibers and wipes the surface of the subway seat when the roller rolls to achieve the disinfection effect. The drying roller 4 ensures the dryness and cleanliness of the seat through the surface absorbent material. The specific positions of the two rollers' movement can follow the principle of "disinfection first, then drying".

[0046] When the disinfection roller 6 returns to the storage position (the storage position is that the two rollers are placed one above the other in the storage cavity. The disinfection roller 6 picks up the disinfection liquid through the surface fibers and wipes the subway seat when the roller rolls to achieve the disinfection effect), the disinfection liquid storage cavity 5 triggers the cross bar 10 connected to it when the disinfection roller 6 is stored. At this time, the disinfection liquid in the disinfection liquid storage cavity 5 is connected through the conduit 11 and evenly sprayed on the disinfection roller 6 from the spray holes 8. The fiber material part of the disinfection roller 6 is full of the disinfection liquid, preparing for the next seat disinfection.

[0047] The internal program compilation carried by the power control module adopts the existing technology, and the following control instructions can be preferably selected:

[0048]

[0049]

[0050] Among them, x is the x coordinate of B, y is the y coordinate of B, a1 is the rotation angle of the first connecting rod 1, a2 is the rotation angle of the second connecting rod 2, and i is used to mark the state position of the disinfection seat during operation. The internal program compilation realizes the control of the movement of the two rollers through an If loop. In a cycle of a disinfection operation, the working sequences of the two rollers are rolling down, rolling left, rolling right, and rolling up respectively. For example, when i = 1, the disinfection roller 6 is below and the drying roller 4 is above, the first connecting rod 1 does not rotate, and the second connecting rod 2 rotates slightly to ensure that the two rollers leave the storage position. The two rollers move downward until they reach the limit point, i = 2, and then continue to execute the next operation. In this way, the disinfection function of the seat is realized through this program.

[0051] In summary, the subway disinfection seat of the present invention disinfects the seat, can prevent the growth of bacteria, ensures the hygienic travel of passengers, and has the value of popularization and application.

[0052] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A subway disinfection seat, comprising a seat main body (3), the seat main body (3) being provided with a seat surface (301) and a backrest (302), characterized in that, On the outer wall of the backrest (302), there is a curved surface cover plate (9) that can be actively opened and closed. Inside the backrest (302), there are a power control module (7), a disinfection liquid storage chamber (5), a fixing part (12), and a disinfection roller (6), a drying roller (4), a first connecting rod (1), and a second connecting rod (2) that can move in and out of the seat. The curved surface cover plate (9) is connected to a first servo motor. The two first connecting rods (1) are respectively connected to both sides of the disinfection roller (6) and the drying roller (4). One end of each of the two second connecting rods (2) is connected to the middle part of a first connecting rod (1) through a ball joint, and a second servo motor is provided at the connection. The other end of the second connecting rod (2) is connected to a sliding mechanism (15), and the sliding mechanism (15) is connected to a third servo motor. Each servo motor is respectively connected to the power control module (7). The disinfection liquid storage chamber (5) is movably connected to the disinfection roller (6) through a cross bar (10). The fixing part (12) is provided with a spray hole (8). The disinfection liquid storage chamber (5) is connected to the spray hole (8) through a conduit (11). In the non-working state, the drying roller (4) and the disinfection roller (6) are arranged in an up-and-down structure, and the spray hole (8) is arranged above the disinfection roller (6). In the disinfection state, the power control module (7) controls the movement of the second connecting rod (2), drives the first connecting rod (1) to rotate, and further drives the drying roller (4) and the disinfection roller (6) to extend out from the curved surface cover plate (9). The disinfection roller (6) and the drying roller (4) are of a cylindrical drum structure, and the inside of each drum is a hollow structure. The outer part of the drum of the disinfection roller (6) is provided with a fiber material piece, and the outer part of the drum of the drying roller (4) is provided with a water-absorbing material piece. The two first connecting rods (1) are respectively connected to both sides of the two rollers, and the connecting parts protrude towards the centers of the corresponding drums. A sliding track (16) that cooperates with the sliding mechanism (15) is fixed inside the backrest (302). The sliding mechanism (15) is arranged on the sliding track (16), and the sliding mechanism (15) is connected to a third servo motor.

2. The subway disinfection seat according to claim 1, wherein, The drying roller (4) and the disinfection roller (6) have the same size.

3. The subway disinfection seat according to claim 1, characterized in that, The fixing part (12) includes a first fixed cross plate (121), a support plate (122), and a second fixed cross plate (123). The support plate (122) is an arc-shaped structural plate. The top of the support plate (122) is fixed to the inner top of the backrest (302). The middle position of the support plate (122) is fixedly connected to the first fixed cross plate (121). The bottom end of the support plate (122) is fixedly connected to the second fixed cross plate (123). In the non-working state, the drying roller (4) is arranged between the top of the support plate (122) and the first fixed cross plate (121), the disinfection roller (6) is arranged between the support plate (122), the first fixed cross plate (121), and the second fixed cross plate (123). The other end of the conduit (11) is arranged at the bottom of the first fixed cross plate (121), and the bottom of the first fixed cross plate (121) is provided with a spray hole (8).

4. A subway disinfection seat according to claim 1, characterized in that, The power control module (7) is fixed inside the backrest (302). The power control module (7) includes a power supply and an STM32 series development board connected to the power supply. The STM32 series development board is connected to the first servo, and is connected to the second servo on the first connecting rod (1) and the third servo on the second connecting rod (2) through servo extension cables. The STM32 series development board is wirelessly connected to the subway main console.

5. The subway disinfection seat according to claim 3, characterized in that, A plurality of spray holes (8) are arranged at equal intervals at the bottom of the first fixed cross plate (121) and are distributed along the axial direction of the disinfection roller (6).

6. The subway disinfection seat according to claim 1, wherein At the corresponding position of the seat and the second connecting rod (2), there is a gap for the second connecting rod (2) to extend out of the seat. Seat rubber rings (13) are respectively arranged on both sides of the gap, and the seat rubber rings (13) are connected to the seat through springs.

7. The subway disinfection seat according to claim 1, characterized in that, The water-absorbing material piece is made of absorbent cotton or an ultra-fine material piece.

8. A subway disinfection seat according to claim 1, characterized in that, The fiber material piece is made of rubber cotton or fiber material.

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