Rolling type bed sheet replacing device

Abstract

The utility model provides a rolling type bed sheet replacement device, which belongs to the technical field of bed sheet replacement and comprises an assembly frame, a PLC (programmable logic controller) arranged on one side of the assembly frame, a tension frame arranged on one side of the assembly frame, first movable grooves arranged on two sides of the tension frame, first sliders slidably connected in the first movable grooves, and tension shafts rotatably connected on the inner sides of the first sliders. First spring telescopic rods are arranged on one sides of the inner walls of the first movable grooves, a main wrinkle removing shaft is rotationally connected to the top of the assembling frame, a wrinkle removing frame is arranged on one side of the top of the assembling frame, second movable grooves are formed in the two sides of the inner wall of the wrinkle removing frame, second sliding blocks are slidably connected into the second movable grooves, and auxiliary wrinkle removing shafts are rotationally connected to the inner sides of the second sliding blocks; according to the rolling type bed sheet replacing device, a bed body handrail is clamped in the concave clamping frame through the anti-skid pad, the assembling frame is installed on a bed body through clamping force, and the rolling type bed sheet replacing device adapts to the width of a bed sheet laid on the bed body.

Description

Technical Field

[0001] The utility model belongs to the technical field of bed sheet replacement, and in particular relates to a rolling bed sheet replacement device. Background Art

[0002] During gastroscopy, the patient's bed sheets need to be changed after each gastroscopy to keep the bed clean. However, the pace of ordinary gastroscopy is fast, basically one patient every 4 to 5 minutes, and changing bed sheets takes 1 minute, which can easily disrupt the rhythm of nurses' work. Among them, the "automatic reel-type bed sheet changing device" disclosed in the application number "201922184789.1" is also an increasingly mature technology. Through the collection drum, transmission belt and motor, the bed sheets can be automatically replaced under the drive of the transmission belt, avoiding the need for manual replacement of bed sheets, and ensuring that the bed sheets can be replaced simply and quickly. The device can be quickly replaced. By arranging the fixing needles on the transmission belt, the sheets can be spread under the pull of the fixing needles, avoiding the phenomenon of wrinkles or deviation of the sheets. However, the device still has the following defects: after the sheets are replaced, wrinkles will appear on the surface of the laid sheets due to the patient's turning over or moving. Although the sheets can be straightened when rolling them up, the sheets will be stretched on the surface of the bed when the patient moves, which can easily pull the sheets at the rolling end and the conveying end to deviate. The position of each section of the laid sheets is not easy to adjust. The equipment cannot be suitable for beds of different sizes and cannot adapt to the width of the sheets during installation. There are certain limitations. Utility Model Content

[0003] The utility model aims to provide a rolling sheet changing device, which aims to solve the problems in the prior art that after the sheet is changed, wrinkles will appear on the surface of the laid sheet due to the patient turning over or moving, and although the sheet can be straightened when rolled up, the sheet will be stretched on the surface of the bed when the patient moves, which can easily pull the sheet off the rolling end and the conveying end, and the position of each section of the laid sheet is not easy to adjust, and the equipment cannot be suitable for beds of different sizes and cannot adapt to the width of the sheet when installed.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising an assembly frame, a PLC controller is provided on one side of the assembly frame, a tension frame is provided on one side of the assembly frame, first movable grooves are provided on both sides of the tension frame, a first slider is slidably connected in the first movable groove, a tension shaft is rotatably connected on the inner side of the first slider, a first spring telescopic rod is provided on one side of the inner wall of the first movable groove, a main wrinkle removal shaft is rotatably connected to the top of the assembly frame, a wrinkle removal frame is provided on one side of the top of the assembly frame, second movable grooves are provided on both sides of the inner wall of the wrinkle removal frame, a second slider is slidably connected in the second movable groove, a secondary wrinkle removal shaft is rotatably connected on the inner side of the second slider, and a second spring telescopic rod is provided on the other side of the inner wall of the second movable groove.

[0005] In an implementation scheme of a rolling sheet changing device of the utility model, one side of the bottom of the wrinkle removal frame is rotatably connected to an electric rotating rod, a clamping block is fixedly installed at the bottom of the electric rotating rod, and a clamping groove is opened at the bottom of the main wrinkle removal shaft.

[0006] In this solution, the disposable bed sheet passes between the main wrinkle-removing shaft and the auxiliary wrinkle-removing shaft. When the bed sheet is laid on the bed surface, the electric rotating rod rotates the clamping block to clamp the bed sheet in the clamping groove to fix the length of the bed sheet laid on the bed surface.

[0007] In an implementation scheme of a rolling sheet changing device of the utility model, a winding frame is provided at the bottom of one side of the assembly frame, a servo motor is provided on one side of the winding frame, and an output end of the servo motor passes through one side of the winding frame and a winding roller is fixedly installed.

[0008] In this solution, two groups of assembly frames are provided, which are fixed on both sides of the bed. The servo motor on one side rotates the winding roller to convey the sheets, and the other group of servo motors rotates the winding roller to wind up the replaced sheets, thereby completing the replacement of the sheets on the surface of the bed.

[0009] In an implementation scheme of a rolling bed sheet changing device of the utility model, a mattress inserting plate is fixedly installed on the bottom of the other side of the assembly frame.

[0010] In this solution, when installing the assembly frame, the mattress insert plate is placed under the mattress to limit the position of the assembly frame, which is convenient for subsequent installation of the assembly frame.

[0011] In an implementation scheme of a rolling sheet changing device of the utility model, a concave clamping frame is provided at the bottom of the assembly frame, clamping knobs are threadedly connected on both sides of the concave clamping frame, an anti-slip pad is provided at one end of the clamping knob, and a locking bolt is threadedly connected to the outer wall of the clamping knob.

[0012] In this solution, the railing at the bottom of the bed is placed in a concave clamping frame, the clamping knob is rotated to push the anti-skid pad, the bed railing is clamped in the concave clamping frame using the anti-skid pad, and the locking bolt is turned to fix the clamping knob.

[0013] In an implementation scheme of a rolling bed sheet changing device of the utility model, the electric rotating rod and the servo motor are both electrically connected to a PLC controller, and the PLC controller is electrically connected to an external power supply.

[0014] In this solution, the electric rotating rod and the servo motor are controlled by a PLC controller. The PLC controller has a built-in signal receiver and a signal transmitter, which can synchronously control the two sets of electric rotating rods and servo motors to cooperate with each other to replace the bed sheets.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1) Place the bottom railing of the bed in the concave clamping frame, rotate the clamping knob to push the anti-skid pad, use the anti-skid pad to clamp the bed railing in the concave clamping frame, and use the clamping force to install the assembly frame on the bed to adapt to the width of the bed sheet on the bed;

[0017] 2) The second spring telescopic rod is used to push the tension shaft on the second slider to adjust the surface tension of the bed sheet during transportation and adaptively straighten the bed sheet. The first spring telescopic rod pushes the auxiliary wrinkle-removing shaft on the first slider to flatten the surface of the bed sheet during transportation to avoid creases when the wrinkled bed sheet is rolled up after the patient turns over. When the new bed sheet is laid on the bed surface, the electric rotating rod rotates the clamping block to clamp the bed sheet in the clamping groove to fix the length of the bed sheet laid on the bed surface to avoid the pulling of the bed sheet. The PLC controller has a built-in signal receiver and signal transmitter, which can synchronously control the two sets of electric rotating rods and the servo motor to cooperate with each other to replace the bed sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the tension frame of the utility model.

[0022] In the figure: 1. assembly frame; 2. PLC controller; 3. tension frame; 4. first movable groove; 5. first slider; 6. tension shaft; 7. first spring telescopic rod; 8. main wrinkle-removing shaft; 9. wrinkle-removing frame; 10. second movable groove; 11. second slider; 12. auxiliary wrinkle-removing shaft; 13. second spring telescopic rod; 14. electric rotating rod; 15. clamping block; 16. clamping groove; 17. winding frame; 18. servo motor; 19. winding roller; 20. mattress plug board; 21. concave clamping frame; 22. clamping knob; 23. anti-slip pad; 24. locking bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 3 The utility model provides the following technical solutions: a rolling sheet changing device comprises an assembly frame 1, a PLC controller 2 is arranged on one side of the assembly frame 1, a tension frame 3 is arranged on one side of the assembly frame 1, first movable grooves 4 are opened on both sides of the tension frame 3, a first slider 5 is slidably connected in the first movable groove 4, a tension shaft 6 is rotatably connected on the inner side of the first slider 5, a first spring telescopic rod 7 is arranged on one side of the inner wall of the first movable groove 4, a main wrinkle-removing shaft 8 is rotatably connected to the top of the assembly frame 1, a wrinkle-removing frame 9 is arranged on one side of the top of the assembly frame 1, second movable grooves 10 are opened on both sides of the inner wall of the wrinkle-removing frame 9, a second slider 11 is slidably connected in the second movable groove 10, a secondary wrinkle-removing shaft 12 is rotatably connected on the inner side of the second slider 11, and a second spring telescopic rod 13 is arranged on the other side of the inner wall of the second movable groove 10.

[0025] For a specific embodiment of a rolling bed sheet changing device, please refer to Figure 2 : The bottom side of the wrinkle removal frame 9 is rotatably connected with an electric rotating rod 14, the bottom of the electric rotating rod 14 is fixedly installed with a clamping block 15, and the bottom of the main wrinkle removal shaft 8 is provided with a clamping groove 16.

[0026] See also Figure 2 The disposable bed sheet passes through the main wrinkle-removing shaft 8 and the auxiliary wrinkle-removing shaft 12. When the bed sheet is laid on the bed surface, the electric rotating rod 14 rotates the clamping block 15 to clamp the bed sheet in the clamping groove 16 to fix the length of the bed sheet laid on the bed surface.

[0027] For a specific embodiment of a rolling bed sheet changing device, please refer to Figure 1 A winding frame 17 is provided at the bottom of one side of the assembly frame 1, and a servo motor 18 is provided on one side of the winding frame 17. The output end of the servo motor 18 passes through one side of the winding frame 17 and a winding roller 19 is fixedly installed thereon.

[0028] See also Figure 1 : Two groups of assembly frames 1 are provided, and the assembly frames 1 are fixed on both sides of the bed body. The servo motor 18 on one side rotates the winding roller 19 to convey the sheets, and the other group of servo motors 18 rotates the winding roller 19 to wind up the replaced sheets, thereby completing the replacement of the sheets on the surface of the bed body.

[0029] For a specific embodiment of a rolling bed sheet changing device, please refer to Figure 1A mattress inserting plate 20 is fixedly mounted on the bottom of the other side of the assembly frame 1.

[0030] See also Figure 1 When installing the assembly frame 1, place the mattress plug plate 20 under the mattress to limit the position of the assembly frame 1, so as to facilitate the subsequent installation of the assembly frame 1.

[0031] For a specific embodiment of a rolling bed sheet changing device, please refer to Figure 3 A concave clamping frame 21 is provided at the bottom of the assembly frame 1, and clamping knobs 22 are threadedly connected to both sides of the concave clamping frame 21. An anti-slip pad 23 is provided at one end of the clamping knob 22, and a locking bolt 24 is threadedly connected to the outer wall of the clamping knob 22.

[0032] See also Figure 3 : After the assembly frame 1 is limited on the bed, place the railing at the bottom of the bed in the concave clamping frame 21, rotate the clamping knob 22 to push the anti-slip pad 23, use the anti-slip pad 23 to clamp the bed railing in the concave clamping frame 21, turn the locking bolt 24, fix the position and length of the clamping knob 22, and use the clamping force to install the assembly frame 1 on the bed.

[0033] For a specific embodiment of a rolling bed sheet changing device, please refer to Figure 1 : The electric rotating rod 14 and the servo motor 18 are both electrically connected to the PLC controller 2, and the PLC controller 2 is electrically connected to an external power supply.

[0034] See also Figure 1 : The electric rotating rod 14 and the servo motor 18 are controlled by the PLC controller 2. The PLC controller 2 has a built-in signal receiver and a signal transmitter, which can synchronously control the two sets of electric rotating rods 14 and the servo motor 18 to cooperate with each other to replace the bed sheets.

[0035] The utility model provides a rolling sheet changing device, which is specifically used as follows: a mattress insert plate 20 is placed under the mattress to limit the position of the assembly frame 1, a railing at the bottom of the bed body is placed in a concave clamping frame 21, a clamping knob 22 is rotated to push the anti-skid pad 23, the bed body railing is clamped in the concave clamping frame 21 by the anti-skid pad 23, a locking bolt 24 is rotated to fix the position and length of the clamping knob 22, the assembly frame 1 is installed on the bed body by the clamping force, one end of the bed sheet is wound around a group of tension shafts 6 and passed between a group of main wrinkle-removing shafts 8 and auxiliary wrinkle-removing shafts 12, and after passing through another group of main wrinkle-removing shafts 8 and auxiliary wrinkle-removing shafts 12 and tension shafts 6 in sequence, one end of the bed sheet is fixed on another group of winding rollers 19, and the electric rotating rod 14 and the tension shaft 6 are controlled by the PLC controller 2. The servo motor 18 is controlled, and the PLC controller 2 has a built-in signal receiver and a signal transmitter, which can synchronously control the two sets of electric rotating rods 14 and the servo motor 18 to cooperate with each other. The two sets of winding rollers 19 wind up the sheets to replace the sheets. During the replacement process, the second spring telescopic rod 13 pushes the tension shaft 6 on the second slider 11 to adjust the surface tension of the sheets during transportation, and adaptively straighten the sheets. The first spring telescopic rod 7 pushes the auxiliary wrinkle-removing shaft 12 on the first slider 5 to flatten the surface of the sheets during transportation, so as to avoid creases on the wrinkled sheets after the patient turns over when rolling them up. When the new sheets are laid on the bed surface, the electric rotating rod 14 rotates the clamping block 15 to clamp the sheets in the clamping groove 16, and fixes the length of the sheets laid on the bed surface to avoid the phenomenon of pulling the sheets.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rolling bed sheet changing device, comprising an assembly frame (1), characterized in that: A PLC controller (2) is provided on one side of the assembly frame (1); a tension frame (3) is provided on one side of the assembly frame (1); first movable grooves (4) are provided on both sides of the tension frame (3); a first slider (5) is slidably connected in the first movable groove (4); a tension shaft (6) is rotatably connected inside the first slider (5); a first spring telescopic rod (7) is provided on one side of the inner wall of the first movable groove (4); a main wrinkle removal shaft (8) is rotatably connected to the top of the assembly frame (1); a wrinkle removal frame (9) is provided on one side of the top of the assembly frame (1); second movable grooves (10) are provided on both sides of the inner wall of the wrinkle removal frame (9); a second slider (11) is slidably connected in the second movable groove (10); a secondary wrinkle removal shaft (12) is rotatably connected inside the second slider (11); a second spring telescopic rod (13) is provided on the other side of the inner wall of the second movable groove (10).

2. A rolling bed sheet changing device according to claim 1, characterized in that: One side of the bottom of the wrinkle removal frame (9) is rotatably connected to an electric rotating rod (14), a clamping block (15) is fixedly installed at the bottom of the electric rotating rod (14), and a clamping groove (16) is provided at the bottom of the main wrinkle removal shaft (8).

3. The rolling bed sheet changing device according to claim 1, characterized in that: A winding frame (17) is provided at the bottom of one side of the assembly frame (1), a servo motor (18) is provided on one side of the winding frame (17), and a winding roller (19) is fixedly installed on the output end of the servo motor (18) passing through one side of the winding frame (17).

4. The rolling bed sheet changing device according to claim 1, characterized in that: A mattress inserting plate (20) is fixedly mounted on the bottom of the other side of the assembly frame (1).

5. The rolling bed sheet changing device according to claim 1, characterized in that: A concave clamping frame (21) is provided at the bottom of the assembly frame (1), and clamping knobs (22) are threadedly connected to both sides of the concave clamping frame (21), an anti-slip pad (23) is provided at one end of the clamping knob (22), and a locking bolt (24) is threadedly connected to the outer wall of the clamping knob (22).

6. The rolling bed sheet changing device according to claim 2, characterized in that: The electric rotating rod (14) and the servo motor (18) are both electrically connected to the PLC controller (2), and the PLC controller (2) is electrically connected to an external power supply.

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