U-shaped handrail film sticking device and use method thereof

Abstract

The present invention relates to the field of film application technology, and in particular to a U-shaped armrest film application device and a method of using the same. The U-shaped armrest film application device comprises two symmetrically arranged side panels, the two side panels are fixedly connected by a front connecting shaft and a rear connecting shaft, and a front handle and a rear handle are also fixedly arranged between the two side panels; a front snap mechanism is fixedly arranged at the front position between the two side panels, and a rear snap mechanism is fixedly arranged at the rear position between the two side panels, a film separation and pressing mechanism and a film wrapping mechanism are arranged between the front snap mechanism and the rear snap mechanism, and the film wrapping mechanism is located at the rear side of the film separation and pressing mechanism. The beneficial effects of the present invention are that the structure is ingenious and reasonable, the installation is convenient, and the U-shaped armrest can be tightly wrapped.

Description

Technical Field

[0001] The present invention relates to the technical field of film pasting, and in particular to a U-shaped handrail film pasting device and a use method thereof. Background Art

[0002] In daily life, escalators, as lifting equipment, facilitate people's activities. At present, the elevator handrails adopt a U-shaped structure. After the manufacturer produces the handrails, they need to be packaged and transported. In this way, the handrails can be well protected until the handrails are transported to the installation construction site. The surface protection will be removed only after the product is accepted. At present, there is no effective protection for the handrail surface, mainly wrapped with packaging tape, and the packaging tape is not attached to the handrail surface. During transportation, the packaging tape often runs away. In order to overcome the running away phenomenon, the packaging tape is wrapped with tape on the outside, which increases the workload and wastes materials. Summary of the invention

[0003] The present invention aims at the deficiencies of the prior art and provides a device for applying film to the surface of an elevator handrail.

[0004] The technical solution provided by the present invention is:

[0005] The U-shaped armrest film device comprises two symmetrically arranged side panels, the two side panels are fixedly connected by a front connecting shaft and a rear connecting shaft, and a front handle and a rear handle are also fixedly arranged between the two side panels;

[0006] A front snap mechanism is fixedly provided at the front position between the two side panels, a rear snap mechanism is fixedly provided at the rear position between the two side panels, a film separation and pressing mechanism and a film wrapping mechanism are provided between the front snap mechanism and the rear snap mechanism, and the film wrapping mechanism is located at the rear side of the film separation and pressing mechanism.

[0007] Specifically, the front buckle mechanism and the rear buckle mechanism have the same structure, both including a buckle guide rail, two buckle seats and an adjusting screw, each buckle seat is fixedly connected to a vertically placed buckle, the buckle is in the shape of a spindle cone, the buckle guide rail is fixedly set between the two side plates, the adjusting screw is rotatably set between the two side plates, the adjusting screw is provided with two threaded sections with opposite directions, the buckle seat is slidably set on the buckle guide rail, and the two buckle seats are also threadedly connected to the threaded sections on the adjusting screw respectively.

[0008] Preferably, the film pressing and separating mechanism includes a film pressing roller, a film collecting wheel and a film collecting shaft. The film pressing roller and the film collecting shaft are rotatably arranged between two side plates. The film collecting wheel is coaxially and fixedly connected to the film collecting shaft. The film collecting wheel is located at one end of the film collecting shaft. The film pressing roller and the film collecting shaft are connected by a chain and a sprocket. A first guide shaft and a second guide shaft are respectively arranged on the front circumference of the film pressing roller. The film is unrolled by the film unrolling wheel, introduced between the film pressing roller and the first guide shaft, and led out and separated by the film pressing roller and the second guide shaft. The release film is flipped upward and wrapped around the film collecting shaft. The base film is unrolled toward the rear side and pressed against the upper surface of the U-shaped handrail by the film pressing roller.

[0009] Preferably, the film wrapping mechanism includes two symmetrically arranged wheel mechanisms.

[0010] The front side of each wheel-displacing mechanism is slidably set on the front guide rail of the wheel-displacing seat, the front guide rail of the wheel-displacing seat is fixed on the side plate on the same side as the wheel-displacing mechanism, and a spring is sleeved on the front guide rail of the wheel-displacing seat between the wheel-displacing mechanism and the side plate. The rear side of each wheel-displacing mechanism is slidably set on the rear guide rail of the wheel-displacing seat, the rear guide rail of the wheel-displacing seat is fixed on the side plate on the same side as the wheel-displacing mechanism, and a spring is sleeved on the rear guide rail of the wheel-displacing seat between the wheel-displacing mechanism and the side plate.

[0011] Preferably, an ear plate is provided in the middle of each wheel-displacing mechanism, the positioning shaft is threadedly connected and passes through the side plate on the same side of the wheel-displacing mechanism, the end of the positioning shaft passes through the ear plate and a protrusion is provided at its end to limit the ear plate.

[0012] Preferably, the wheel-row mechanism includes a wheel-row seat, which is an arc-shaped cylinder, and a plurality of wheels are arranged inside the cylinder. The wheels are composed of rollers rotatably arranged on the wheel seat, one of which is located at the exit of the U-shaped handrail on the cylinder and faces the straight section of the U-shaped handrail, and the remaining wheels are arranged in a spiral shape and are arranged from the straight section of the U-shaped handrail at the entrance of the U-shaped handrail to the curved section of the U-shaped handrail at the exit of the U-shaped handrail, and the axis of the roller is perpendicular to the moving direction of the U-shaped handrail.

[0013] Preferably, the wheel seat is provided with a groove corresponding to the position of the wheel, a column is fixedly provided on the top of the wheel, the column extends into the groove and passes through the wheel seat, an adjustment spring is sleeved on the column between the wheel seat and the wheel, and the end of the column is threadedly connected to the nut.

[0014] The present invention also provides a method for using the U-shaped handrail film pasting device.

[0015] After the front snap mechanism and the rear snap mechanism clamp the U-shaped armrest, the film is introduced by the film separation and pressing mechanism and separates the release film and the base film, the release film is retracted forward, the base film is pressed backward on the straight section of the U-shaped armrest and introduced into the film wrapping mechanism, and the film wrapping mechanism wraps the base film 112 around the curved sections at both ends of the U-shaped armrest.

[0016] Preferably, the film wrapping mechanism includes two symmetrically arranged wheel mechanisms.

[0017] The front side of each wheel-displacing mechanism is slidably arranged on the front guide rail of the wheel-displacing seat, the front guide rail of the wheel-displacing seat is fixed on the side plate on the same side as the wheel-displacing mechanism, and a spring is sleeved on the front guide rail of the wheel-displacing seat between the wheel-displacing mechanism and the side plate; the rear side of each wheel-displacing mechanism is slidably arranged on the rear guide rail of the wheel-displacing seat, the rear guide rail of the wheel-displacing seat is fixed on the side plate on the same side as the wheel-displacing mechanism, and a spring is sleeved on the rear guide rail of the wheel-displacing seat between the wheel-displacing mechanism and the side plate;

[0018] If the base film forms adhesion or the base film and the release film are not completely separated, a bulge will be formed on the surface of the U-shaped handrail, and finally the film will be piled up on one side of the U-shaped handrail. The side row wheel mechanism will move outwards under the action of the accumulated film, and the spring between the side row wheel mechanism and the side plate 2 will be squeezed and contracted, so as to avoid the occurrence of a jam.

[0019] The wheel-displacing mechanism comprises a wheel-displacing seat, which is an arc-shaped cylinder, and a plurality of wheels are fixedly arranged inside the cylinder, and the wheels are composed of rollers rotatably arranged on the wheel-displacing seat, one of the wheels is located at the exit of the U-shaped handrail on the cylinder and directly faces the straight section of the U-shaped handrail, and the remaining wheels are arranged in a spiral shape and are arranged from the straight section of the U-shaped handrail at the entrance of the U-shaped handrail directly facing the straight section of the U-shaped handrail to the curved section of the U-shaped handrail at the exit of the U-shaped handrail, and the axis of the roller is perpendicular to the moving direction of the U-shaped handrail;

[0020] The row wheels on the row wheel mechanism that are located at the entrance of the U-shaped handrail on the cylinder and facing the straight section of the U-shaped handrail press the base membrane, and the row wheels on the row wheel mechanism that are located at the exit of the U-shaped handrail on the cylinder and facing the straight section of the U-shaped handrail press the base membrane, so that the base membrane is in a state of being stretched and tightly attached to the straight section of the U-shaped handrail. The row wheels that are arranged in a spiral shape and are arranged from the entrance of the U-shaped handrail facing the straight section of the U-shaped handrail to the exit of the U-shaped handrail and are located at the curved section of the U-shaped handrail gradually wrap the base membrane on the curved section of the U-shaped handrail.

[0021] Preferably, a lug plate is provided in the middle of each wheel-displacing mechanism, the positioning shaft is threadedly connected and passes through the side plate on the same side of the wheel-displacing mechanism, the end of the positioning shaft passes through the lug plate and a protrusion is provided at the end thereof to limit the position of the lug plate, and the wheel-displacing mechanism and the U-shaped handrail are adjusted to be in a suitable positional relationship to ensure that the wheel-displacing mechanism applies a suitable force to the U-shaped handrail;

[0022] The wheel seat is provided with a groove corresponding to the position of the wheel, and a column is fixedly provided on the top of the wheel. The column extends into the groove and passes through the wheel seat. An adjusting spring is sleeved on the column between the wheel seat and the wheel, and the end of the column is threadedly connected to the nut. The individual wheel and the U-shaped handrail are adjusted to always be in an appropriate position relationship and to ensure that the wheel exerts an appropriate force on the U-shaped handrail. The adjusting spring makes the base membrane closely adhere to the surface of the U-shaped handrail through the roller.

[0023] Compared with the prior art, the invention has the beneficial effects of ingenious and reasonable structure, convenient installation, and the ability to tightly wrap the U-shaped handrail, thereby improving the quality of film pasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a top view of the film wrapping mechanism part;

[0026] Figure 3 It is a schematic diagram of the connection between the adjustment shaft and the ear plate;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the film wrapping mechanism;

[0028] Figure 5 It is a rear view of the film wrapping mechanism;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the film wrapping mechanism;

[0030] Figure 7 It is a connection structure diagram of the row wheel and the row wheel seat;

[0031] Figure 8 It is a structural diagram of a U-shaped handrail.

[0032] 1 U-shaped handrail 2 side panel 3 front handle 4 front connecting shaft 5 front buckle 6 front buckle guide rail 7 front buckle seat 8 front adjusting screw 9 film collecting wheel 10 film collecting shaft 11 film sticking 111 release film 112 base film 12 first guide shaft 13 second guide shaft 14 film pressing roller 15 chain 16 adjustment shaft 17 front guide rail of wheel seat 18 front spring 19 rear guide rail of wheel seat 20 rear spring 21 rear handle 22 rear buckle 23 rear connecting shaft 24 rear buckle guide rail 25 rear buckle seat 26 rear adjusting screw 27 film releasing wheel 28 ear plate 41 wheel seat 42 wheel seat 43 roller 44 column 45 adjusting spring 46 nut 47 middle connecting shaft. DETAILED DESCRIPTION

[0033] like Figure 1As shown, the U-shaped armrest film-applying device comprises two symmetrically arranged side panels 2, the two side panels 2 are fixedly connected by a front connecting shaft 4 and a rear connecting shaft 23, and a front handle 3 and a rear handle 21 are fixedly arranged between the two side panels 2. In order to improve the stability of the whole device, a middle connecting shaft can be added to the front connecting shaft 4 and the rear connecting shaft 23, and a middle connecting shaft 47 is fixedly connected between the two side panels 2. The middle connecting shaft 47 can be one or more. The middle connecting shaft 47 also has the function of guiding the film, guiding the film 11 to pass through and enter the film pressing roller 14.

[0034] A front snap mechanism is fixedly provided at the front position between the two side panels 2, and a rear snap mechanism is fixedly provided at the rear position between the two side panels 2. A film separation and pressing mechanism and a film wrapping mechanism are provided between the front snap mechanism and the rear snap mechanism, and the film wrapping mechanism is located at the rear side of the film separation and pressing mechanism.

[0035] The front buckle mechanism and the rear buckle mechanism have the same structure.

[0036] The front buckle mechanism includes a front buckle guide rail 6, two front buckle seats 7 and a front adjusting screw 8. Each front buckle seat 7 is fixedly connected with a vertically placed buckle, and the buckle is in the shape of a spindle cone. The front buckle guide rail 6 is fixedly arranged between the two side plates 2, the front adjusting screw 8 is rotatably arranged between the two side plates 2, and the front adjusting screw 8 is provided with two threaded sections with opposite directions. The front buckle seat 7 is slidably arranged on the front buckle guide rail 6, and the two front buckle seats 7 are also respectively threadedly connected with the threaded sections on the front adjusting screw 8. By rotating the front adjusting screw 8, the two front buckle seats 7 are moved toward or away from each other, thereby adjusting the distance between the two front buckle seats 7.

[0037] Each rear buckle seat 25 is fixedly connected with a buckle placed vertically, and the buckle is in the shape of a spindle cone. The rear buckle guide rail 24 is fixedly arranged between the two side plates 2, and the rear adjustment screw 26 is rotatably arranged between the two side plates 2. The rear adjustment screw 26 is provided with two threaded sections with opposite directions. The rear buckle seat 25 is slidably arranged on the front buckle guide rail 6, and the two rear buckle seats 25 are also respectively threadedly connected with the threaded sections on the rear adjustment screw 26. By rotating the rear adjustment screw 26, the two rear buckle seats 25 are moved toward or away from each other, thereby adjusting the distance between the two rear buckle seats 25.

[0038] The film separation and pressing mechanism includes a film pressing roller 14, a film collecting wheel 9, and a film collecting shaft 10. The film pressing roller 14 and the film collecting shaft 10 are rotatably arranged between the two side plates 2. The film collecting wheel 9 is coaxially fixedly connected with the film collecting shaft 10. The film collecting wheel 9 is located at one end of the film collecting shaft 10. The film pressing roller 14 and the film collecting shaft 10 are connected through a chain and a sprocket transmission. The first guide shaft 12 and the second guide shaft 13 are respectively arranged at the front circumferential position of the film pressing roller 14. The film is unfolded by the film placing wheel 27, introduced between the film pressing roller 14 and the first guide shaft 12, and led out and separated by the film pressing roller 14 and the second guide shaft 13. The release film 111 is turned up and wound on the film collecting shaft 10. The base film 112 is unfolded to the rear side and the film pressing roller 14 is pressed on the upper surface of the U-shaped handrail. The release film 111 is wound on the film collecting shaft 10. The release film 111 can be wound in a standardized manner by limiting the film collecting wheel 9 to avoid the deviation of the winding direction.

[0039] The film wrapping mechanism includes two symmetrically arranged wheel mechanisms.

[0040] The front side of each wheel-displacing mechanism is slidably disposed on the front guide rail 17 of the wheel-displacing seat, and the front guide rail 17 of the wheel-displacing seat is fixed on the side plate 2 on the same side as the wheel-displacing mechanism. A front spring 18 is sleeved on the front guide rail 17 of the wheel-displacing seat between the wheel-displacing mechanism and the side plate 2.

[0041] The rear side of each wheel-displacing mechanism is slidably disposed on the rear guide rail 19 of the wheel-displacing seat, and the rear guide rail 19 of the wheel-displacing seat is fixed on the side plate 2 on the same side as the wheel-displacing mechanism. A rear spring 20 is sleeved on the rear guide rail 19 of the wheel-displacing seat between the wheel-displacing mechanism and the side plate 2.

[0042] An ear plate 28 is provided in the middle of each wheel-displacing mechanism, and the adjusting shaft 16 is threadedly connected and passes through the side plate 2 on the same side of the wheel-displacing mechanism. The end of the adjusting shaft 16 passes through the ear plate 28 and a protrusion is provided at its end to limit the ear plate 28.

[0043] The wheel-displacing mechanism includes a wheel-displacing seat 41, which is an arc-shaped cylinder, and a plurality of wheels are fixedly arranged inside the cylinder. The wheels are composed of rollers 43 rotatably arranged on the wheel seat 42, one of which is located at the exit of the U-shaped handrail 1 on the cylinder and is opposite to the straight section of the U-shaped handrail 1, and the remaining wheels are arranged in a spiral shape and are arranged from the straight section of the U-shaped handrail 1 at the entrance of the U-shaped handrail 1 to the curved section of the U-shaped handrail 1 at the exit of the U-shaped handrail, and the axis of the roller is perpendicular to the moving direction of the U-shaped handrail 1.

[0044] The wheel seat 41 is provided with a groove corresponding to the position of the wheel, and a column 44 is fixedly provided on the top of the wheel. The column 44 extends into the groove and passes through the wheel seat 41. An adjusting spring 45 is sleeved on the column 44 between the wheel seat 41 and the wheel, and the end of the column 44 is threadedly connected with a nut 46.

[0045] The method of using the U-shaped armrest film pasting device is that after the front snap mechanism and the rear snap mechanism clamp the U-shaped armrest, the film 11 is introduced by the film separation and pressing mechanism and separates the release film 111 and the base film 112, the release film 111 is retracted forward, the base film 112 is pressed backward on the straight section of the U-shaped armrest 1 and introduced into the film wrapping mechanism, and during the movement of the U-shaped armrest film pasting device, the film wrapping mechanism wraps the base film 112 on the curved sections at both ends of the U-shaped armrest 1.

[0046] If the base film 112 forms adhesion or the base film 112 and the release film 111 are not completely separated, a bulge will be formed on the surface of the U-shaped handrail 1, and eventually the film will be accumulated on one side of the U-shaped handrail 1. The side wheel mechanism will move outward due to the accumulated film 11, and the spring between the side wheel mechanism and the side panel 2 will be squeezed and contracted to avoid jamming.

[0047] The row wheels on the row wheel mechanism that are located at the entrance of the U-shaped handrail 1 on the cylinder and facing the straight section of the U-shaped handrail 1 press the base membrane 112, and the row wheels on the row wheel mechanism that are located at the exit of the U-shaped handrail 111 on the cylinder and facing the straight section of the U-shaped handrail 111 press the base membrane 112, so that the base membrane 112 is in a state of being tightly attached to the straight section of the U-shaped handrail 111. The row wheels that are arranged in a spiral shape and are arranged from the entrance of the U-shaped handrail 1 facing the straight section of the U-shaped handrail 1 to the exit of the U-shaped handrail 1 located at the curved section of the U-shaped handrail 1 gradually wrap the base membrane 112 on the curved section of the U-shaped handrail 1.

[0048] A lug plate 28 is provided in the middle of each wheel-displacing mechanism, and the adjusting shaft 16 is threadedly connected and passes through the side plate 2 on the same side of the wheel-displacing mechanism. The end of the adjusting shaft 16 passes through the lug plate 28 and a protrusion is provided at the end thereof to limit the lug plate 28. The wheel-displacing mechanism and the U-shaped handrail 1 are adjusted to be in a suitable positional relationship to ensure that the wheel-displacing mechanism applies a suitable force to the U-shaped handrail 1.

[0049] The wheel seat 41 is provided with a groove corresponding to the position of the wheel, and a column 44 is fixedly provided on the top of the wheel. The column 44 extends into the groove and passes through the wheel seat 41. An adjustment spring 45 is sleeved on the column 44 between the wheel seat 41 and the wheel. The end of the column 44 is threadedly connected with a nut 46. The positional relationship between a single wheel and the U-shaped handrail 1 is adjusted to always be in a suitable position and to ensure that the wheel applies a suitable force to the U-shaped handrail 1. The adjustment spring 45 makes the base film 112 closely attached to the surface of the U-shaped handrail 1 through the roller 43. When the wheel is subjected to a large pressure from the U-shaped handrail 1, it can be retracted into the groove to avoid being stuck, and can adapt to U-shaped handrails 1 of varying sizes.

[0050] The main function of the column 44 is to make the wheel seat 41 adapt to different types and specifications of U-shaped handrails 1. The U-shaped handrails 1 of different types and specifications are generally the same in appearance, but the specific dimensions are slightly different. The present invention uses the structure of the column 44, the spring 45 and the nut 46 to make the wheel on the wheel seat 41 elastically pressed against the U-shaped handrail 1, and can adapt to different types and specifications of U-shaped handrails 1.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A U-shaped armrest film-applying device, comprising two symmetrically arranged side panels (2), the two side panels (2) being fixedly connected via a front connecting shaft (4) and a rear connecting shaft (23), and a front handle (3) and a rear handle (21) being fixedly arranged between the two side panels (2); It is characterized in that A front buckle mechanism is fixedly arranged at the front position between the two side panels (2), a rear buckle mechanism is fixedly arranged at the rear position between the two side panels (2), a film separation and pressing mechanism and a film wrapping mechanism are arranged between the front buckle mechanism and the rear buckle mechanism, and the film wrapping mechanism is located at the rear side of the film separation and pressing mechanism; The film wrapping mechanism includes two symmetrically arranged wheel mechanisms. The front side of each wheel-displacing mechanism is slidably arranged on a front guide rail (17) of a wheel-displacing seat, and the front guide rail (17) of the wheel-displacing seat is fixed on a side plate (2) on the same side as the wheel-displacing mechanism. A spring is sleeved on the front guide rail (17) of the wheel-displacing seat between the wheel-displacing mechanism and the side plate (2). The rear side of each wheel-displacing mechanism is slidably arranged on a rear guide rail (19) of a wheel-displacing seat, and the rear guide rail (19) of the wheel-displacing seat is fixed on a side plate (2) on the same side as the wheel-displacing mechanism, and a spring is sleeved on the rear guide rail (19) of the wheel-displacing seat between the wheel-displacing mechanism and the side plate (2); A lug plate (28) is arranged in the middle of each wheel-displacing mechanism, a positioning shaft (16) is threadedly connected and passes through the side plate (2) on the same side of the wheel-displacing mechanism, a distal end of the positioning shaft (16) passes through the lug plate (28) and a protrusion is arranged at the distal end of the positioning shaft (16) to limit the position of the lug plate (28); The wheel-displacing mechanism comprises a wheel-displacing seat (41), the wheel-displacing seat (41) is an arc-shaped cylinder, a plurality of wheels are arranged inside the cylinder, and the wheels are composed of rollers (43) rotatably arranged on the wheel seat (42), one of the wheels is located at the exit of the U-shaped handrail (1) on the cylinder and directly faces the straight section of the U-shaped handrail (1), and the remaining wheels are arranged in a spiral shape and are arranged from the straight section of the U-shaped handrail (1) at the entrance of the U-shaped handrail (1) to the curved section of the U-shaped handrail (1) at the exit of the U-shaped handrail, and the axis of the roller is perpendicular to the moving direction of the U-shaped handrail (1); The wheel arrangement on the wheel mechanism is located at the entrance of the U-shaped handrail (1) on the cylinder body and directly faces the straight section of the U-shaped handrail (1) and presses the base film (112). The wheel arrangement on the wheel mechanism is located at the exit of the U-shaped handrail (1) on the cylinder body and directly faces the straight section of the U-shaped handrail (1) and presses the base film (112) so that the base film (112) is in a state of being tightly attached to the straight section of the U-shaped handrail (1). The wheels arranged in a spiral shape and arranged from the entrance of the U-shaped handrail (1) directly facing the straight section of the U-shaped handrail (1) to the exit of the U-shaped handrail (1) and located at the curved section of the U-shaped handrail (1) gradually wrap the base film (112) around the curved section of the U-shaped handrail (1).

2. The U-shaped armrest film-applying device according to claim 1, characterized in that: The front buckle mechanism and the rear buckle mechanism have the same structure, both comprising a buckle guide rail, two buckle seats and an adjusting screw, each buckle seat is fixedly connected to a vertically placed buckle, the buckle is in the shape of a spindle cone, the buckle guide rail is fixedly arranged between the two side plates (2), the adjusting screw is rotatably arranged between the two side plates (2), the adjusting screw is provided with two threaded sections with opposite directions, the buckle seat is slidably arranged on the buckle guide rail, and the two buckle seats are also respectively threadedly connected to the threaded sections on the adjusting screw.

3. The U-shaped armrest film-applying device according to claim 1, characterized in that: The film separation and pressing mechanism comprises a film pressing roller (14), a film collecting wheel (9), and a film collecting shaft (10). The film pressing roller (14) and the film collecting shaft (10) are rotatably arranged between two side plates (2). The film collecting wheel (9) is coaxially fixedly connected with the film collecting shaft (10). The film collecting wheel (9) is located at one end of the film collecting shaft (10). The film pressing roller (14) and the film collecting shaft (10) are connected through a chain and a sprocket transmission. A first guide shaft (12) and a second guide shaft (13) are respectively arranged at the front circumferential position of the film pressing roller (14). The film is unfolded by the film placing wheel (27), introduced between the film pressing roller (14) and the first guide shaft (12), and led out and separated by the film pressing roller (14) and the second guide shaft (13). The release film (111) is turned upward and wound around the film collecting shaft (10). The base film (112) is unfolded to the rear side and pressed onto the upper surface of the U-shaped handrail through the film pressing roller (14).

4. The U-shaped armrest film-applying device according to claim 1, characterized in that: The wheel seat (41) is provided with a groove corresponding to the position of the wheel, a column (44) is fixedly provided on the top of the wheel, the column (44) extends into the groove and passes through the wheel seat (41), an adjustment spring (45) is sleeved on the column (44) between the wheel seat (41) and the wheel, and the end of the column (44) is threadedly connected with a nut (46).

5. The method for using the U-shaped handrail film sticking device according to claim 1, characterized in that: After the front snap mechanism and the rear snap mechanism clamp the U-shaped handrail, the film (11) is introduced into the film separation and pressing mechanism and the release film (111) and the base film (112) are separated, the release film (111) is retracted forward, the base film (112) is pressed backward on the straight section of the U-shaped handrail (1) and introduced into the film wrapping mechanism, and the film wrapping mechanism wraps the base film (112) on the curved sections at both ends of the U-shaped handrail (1); If the base film (112) forms adhesion or the base film (112) and the release film (111) are not completely separated, a bulge is formed on the surface of the U-shaped handrail (1), and finally the film is piled up on one side of the U-shaped handrail (1). The side wheel mechanism is moved outward by the accumulated film (11), and the spring between the side wheel mechanism and the side plate (2) is squeezed and contracted to avoid jamming. Adjusting the wheel mechanism and the U-shaped handrail (1) to be in a suitable positional relationship to ensure that the wheel mechanism applies a suitable force to the U-shaped handrail (1); The wheel seat (41) is provided with a groove corresponding to the position of the wheel, and a column (44) is fixedly provided on the top of the wheel. The column (44) extends into the groove and passes through the wheel seat (41). An adjustment spring (45) is sleeved on the column (44) between the wheel seat (41) and the wheel. The end of the column (44) is threadedly connected to a nut (46). The positional relationship between a single wheel and the U-shaped handrail (1) is adjusted to always be in an appropriate position and to ensure that the wheel applies a force of appropriate size to the U-shaped handrail (1). The adjustment spring (45) allows the base film (112) to be closely attached to the surface of the U-shaped handrail (1) through a roller (43).

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