Automatic replacing device for disposable bed sheet of CT machine tool

Abstract

The utility model relates to the technical field of medical scanning beds, and discloses a CT machine tool disposable bed sheet automatic replacing device which comprises a scanning bed frame, an equipment base arranged below the scanning bed frame and a movable base arranged between the scanning bed frame and the equipment base. A collecting rolling shaft and a releasing rolling shaft are rotationally connected to the edges of the left side and the right side of an inner cavity of the scanning bed frame correspondingly, the rear ends of the collecting rolling shaft and the releasing rolling shaft are in transmission connection, and strip-shaped through grooves are symmetrically formed in the edges of the left side and the right side of the top wall face of the scanning bed frame in a penetrating mode. A driving motor used for driving the collecting rolling shaft to rotate is fixedly installed on the left side of the bottom wall face of the inner cavity of the scanning bed frame, and a foot switch electrically connected with the driving motor is arranged on the equipment base. By arranging the tensioning mechanism, a bed sheet can be conveniently replaced by the equipment, the stability of the equipment for fixing the position of disinfection paper is also improved, and the practicability of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical scanning bed technology, and in particular to an automatic disposable bed sheet changing device for CT scanners. Background Technology

[0002] A search revealed that application number 202020553480.5 discloses an automatic disposable bed sheet changing device for radiology departments, including a scanning bed. The scanning bed includes a lower plate, a bed frame, an upper plate, side sealing plates, an openable cover, a movable base, and a base. The movable base is fixed above the base, and the lower plate is fixed above the movable base. The bed frame is fixed on both sides of the lower plate. Two side sealing plates are fixed to the outside of the bed frame, and two openable covers are fixed to both ends of the bed frame. It also includes a collection roller, a release roller, a roller bracket, a servo motor, and a foot switch.

[0003] The patent application describes an automatic disposable bed sheet changing device for radiology departments. During use, a foot switch controls a servo motor to rotate and rewind used sterile paper, forcing a release roller to rotate and release unused sterile paper, thus changing the bed sheet on the bed frame. However, during this operation, the release roller is always in motion and cannot fix the sterile paper in place. When the patient lies on the bed frame, the sterile paper on the release roller is easily pulled out and becomes messy, causing inconvenience and indicating room for improvement. Therefore, we propose an automatic disposable bed sheet changing device for CT scanners. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provides an automatic disposable bed sheet changing device for CT machine tools.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an automatic disposable sheet changing device for a CT scanner, comprising a scanning bed frame, an equipment base disposed below the scanning bed frame, and a movable base disposed between the scanning bed frame and the equipment base. A collection roller and a release roller are rotatably connected to the left and right edges of the inner cavity of the scanning bed frame, respectively, with a drive connection at their rear ends. A strip-shaped through-slot is symmetrically formed on the left and right edges of the top wall of the scanning bed frame. A device for driving the collection roller is fixedly installed on the left side of the bottom wall of the inner cavity of the scanning bed frame. The device base is equipped with a foot switch electrically connected to the drive motor for the rotation of the roller. A C-shaped fixed guide bracket is fixedly installed on the right side of the top wall of the inner cavity of the scanning bed frame. The fixed guide bracket is equipped with a tensioning mechanism, which includes a left-right adjustable tensioning roller that is slidably connected inside the fixed guide bracket. A disinfectant paper is placed on the release roller. One end of the disinfectant paper passes sequentially through the left end of the tensioning roller, the inside of the strip groove on the right side, the top wall of the scanning bed frame, and the inside of the strip groove on the left side before being fixedly connected to the surface of the collection roller.

[0006] Furthermore, the scanning bed frame is symmetrically equipped with switchable covers at both ends.

[0007] Furthermore, side sealing plates are symmetrically fixedly installed at both ends of the front end of the scanning bed frame.

[0008] Furthermore, a collection coupling tube is symmetrically rotated and connected to the left edge of the bottom wall of the scanning bed frame via a bracket.

[0009] Furthermore, the front and rear ends of the collecting roller are fixedly installed at the ends of the two collecting connecting pipes that are close to each other.

[0010] Furthermore, a release coupling is symmetrically connected to the right edge of the bottom wall of the inner cavity of the scanning bed frame via a bracket.

[0011] Furthermore, the front and rear ends of the release roller are fixedly installed at the ends of the two release connecting pipes that are close to each other.

[0012] Furthermore, the outer surface of the collection connector located at the rear position is rotatably connected to the outer surface of the release connector located at the rear position via a sprocket and a chain.

[0013] Furthermore, the output end of the drive motor is connected to the outer surface of the collection coupling pipe located at the front side via a pulley and belt.

[0014] Furthermore, two guide rollers are rotatably connected inside the two strip-shaped channels, which roll in contact with one end of the disinfectant paper located inside the two strip-shaped channels.

[0015] Furthermore, the fixed guide bracket is equipped with a C-shaped movable mounting bracket inside.

[0016] Furthermore, the front and rear side walls inside the fixed guide bracket are provided with two limiting grooves that are adapted to the front and rear ends of the movable mounting bracket, and the front and rear ends of the movable mounting bracket are slidably connected inside the two limiting grooves.

[0017] Furthermore, the tensioning roller shaft is rotatably mounted inside the movable mounting frame.

[0018] Furthermore, a tension spring is fixedly connected between the left wall of the movable mounting bracket and the inner left wall of the fixed guide bracket.

[0019] This utility model provides an automatic disposable sheet changing device for CT scanners. It has the following beneficial effects:

[0020] 1. This automatic disposable sheet changing device for a CT scanner utilizes a tensioning mechanism. When sheet changing is needed, medical staff activate a foot switch on the device base to start the drive motor. The motor's output drives a collection roller on a collection coupling pipe via pulleys and a belt. Due to the rear-end drive connection between the collection roller and the release roller, the release roller rotates synchronously with the collection roller. The collection roller retracts used sterile paper located on the top surface of the scanning bed frame, while the release roller releases unused sterile paper and moves it to the top surface of the scanning bed frame, completing the sheet changing operation. Upon stopping the drive motor, both the collection roller and the release roller are at a complete stop. The device effectively fixes the position of the disinfectant paper on the top surface of the scanning bed frame, preventing it from becoming disorganized and affecting its use due to external influences. During this process, the movable mounting frame, under the elastic force of the tension spring, drives the tension roller to continuously tension the disinfectant paper. When the radii of the disinfectant paper wound on the collecting roller and the releasing roller are different, the winding speed of the collecting roller and the releasing speed of the releasing roller will differ. The disinfectant paper then drives the tension roller to move left and right to compensate for the difference, ensuring the disinfectant paper remains taut. This operation is simple and practical, with a reasonable and compact structure. It enables convenient sheet replacement and improves the stability of the disinfectant paper's position, thus enhancing the device's practicality.

[0021] 2. This automatic disposable sheet changing device for CT scanners, by setting guide rollers, reduces wear on the disinfectant paper as it passes through the two strip grooves by rolling contact with the two guide rollers, thus further improving the practicality of the device. Attached Figure Description

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented, and therefore have no substantial technical significance.

[0023] Figure 1 This is a schematic diagram of the automatic disposable bed sheet changing device for CT machine tools according to this utility model;

[0024] Figure 2 This is a cross-sectional view of the CT machine tool disposable automatic bed sheet changing device of this utility model;

[0025] Figure 3 This is a schematic diagram of the tensioning mechanism of this utility model.

[0026] Legend:

[0027] 10. Scanning bed frame; 11. Equipment base; 12. Movable base; 13. Openable cover; 14. Side sealing plate; 15. Collection connecting pipe; 16. Collection roller; 17. Release connecting pipe; 18. Release roller; 19. Strip groove; 20. Guide roller; 22. Drive motor; 23. Foot switch; 24. Disinfectant paper; 25. Fixed guide bracket; 26. Movable mounting bracket; 27. Limiting slide; 28. Tensioning roller; 29. ​​Tensioning spring. Detailed Implementation

[0028] An automatic disposable sheet changing device for CT scanners, such as Figure 1-3As shown, the device includes a scanning bed frame 10, a device base 11 disposed below the scanning bed frame 10, and a movable base 12 disposed between the scanning bed frame 10 and the device base 11. Symmetrically arranged on both sides of the scanning bed frame 10 are operable covers 13. Side sealing plates 14 are symmetrically fixedly installed on both ends of the front end of the scanning bed frame 10. Collection rollers 16 and release rollers 18 are rotatably connected to the left and right edges of the inner cavity of the scanning bed frame 10, respectively. The rear ends of the collection rollers 16 and release rollers 18 are connected by a drive mechanism. A collection coupling tube 15 is symmetrically rotatably connected to the left edge of the bottom wall of the inner cavity of the scanning bed frame 10 via a bracket. The front and rear ends of the collection rollers 16 are connected to the two collection coupling tubes 15. One end of each connecting pipe 15 is fixedly installed close to the other. A release connecting pipe 17 is symmetrically rotatably connected to the right edge of the bottom wall of the scanning bed frame 10 via a bracket. The front and rear ends of the release roller 18 are fixedly installed to the two release connecting pipes 17 close to each other. The outer surface of the collection connecting pipe 15 located at the rear is rotatably connected to the outer surface of the release connecting pipe 17 located at the rear via a sprocket and chain. The output end of the drive motor 22 is connected to the outer surface of the collection connecting pipe 15 located at the front via a pulley and belt. A strip-shaped through groove 19 is symmetrically opened through the left and right edges of the top wall of the scanning bed frame 10. The left side of the bottom wall of the scanning bed frame 10 is fixed... A drive motor 22 is installed to rotate the collection roller 16. A foot switch 23 electrically connected to the drive motor 22 is provided on the equipment base 11. A C-shaped fixed guide bracket 25 is fixedly installed on the right side of the top wall of the inner cavity of the scanning bed frame 10. A tensioning mechanism is provided inside the fixed guide bracket 25. The tensioning mechanism includes a left-right adjustable tension roller 28 slidably connected inside the fixed guide bracket 25. A disinfection paper 24 is provided on the release roller 18. One end of the disinfection paper 24 passes sequentially through the left end of the tension roller 28, the inside of the strip groove 19 located on the right side, the top wall of the scanning bed frame 10, and the inside of the strip groove 19 located on the left side. The surface of the collecting roller 16 is fixedly connected to the two strip-shaped through grooves 19. Two guide rollers 20 are rotatably connected inside the two strip-shaped through grooves 19 and roll in contact with one end of the disinfection paper 24 located inside the two strip-shaped through grooves 19. The fixed guide bracket 25 is provided with a C-shaped movable mounting bracket 26. The front and rear side walls inside the fixed guide bracket 25 are provided with two limiting slide grooves 27 that are adapted to the front and rear ends of the movable mounting bracket 26. The front and rear ends of the movable mounting bracket 26 are slidably connected inside the two limiting slide grooves 27. The tension roller 28 is rotatably installed inside the movable mounting bracket 26. A tension spring 29 is fixedly connected between the left wall of the movable mounting bracket 26 and the inner left wall of the fixed guide bracket 25.

[0029] The working principle of this utility model is as follows: When the bed sheet needs to be changed, the medical staff steps on the foot switch 23 on the equipment base 11 to control the drive motor 22 to start. The output end of the drive motor 22 drives the collection roller 16 on the collection docking pipe 15 to rotate through the pulley and belt. Since the rear end of the collection roller 16 and the release roller 18 are connected by a transmission, the release roller 18 rotates synchronously with the collection roller 16. The rotation of the collection roller 16 rolls up the used disinfectant paper 24 located on the top surface of the scanning bed frame 10, and the rotation of the release roller 18 releases the unused disinfectant paper 24 and moves it to the top surface of the scanning bed frame 10, completing the bed sheet changing operation. The drive motor 22 is then stopped. At this time, both the collection roller 16 and the release roller 18 are in a stopped state, forming a fixed position effect on the disinfectant paper 24 located on the top surface of the scanning bed frame 10, so as to prevent the disinfectant paper 24 from being released due to external influences. The messy arrangement affects usability. During this process, the movable mounting frame 26, under the elastic force of the tension spring 29, drives the tension roller 28 to continuously tension the disinfectant paper 24. When the radii of the disinfectant paper 24 wound on the collecting roller 16 and the releasing roller 18 are different, the winding speed of the collecting roller 16 on the disinfectant paper 24 and the releasing speed of the releasing roller 18 on the disinfectant paper 24 are different. The disinfectant paper 24 then drives the tension roller 28 to move left and right to compensate for the difference between the two, so that the disinfectant paper 24 is always in a taut state. The above operation is simple and practical, and the structure is reasonable and compact. It realizes the convenient replacement of bed sheets and improves the stability of the position of the disinfectant paper 24, thus improving the practicality of the equipment. When the disinfectant paper 24 passes through the two strip grooves 19, the disinfectant paper 24 reduces the wear caused by rolling contact with the two guide rollers 20, further improving the practicality of the equipment.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic disposable sheet changing device for a CT scanner, comprising a scanning bed frame (10), an equipment base (11) disposed below the scanning bed frame (10), and a movable base (12) disposed between the scanning bed frame (10) and the equipment base (11), characterized in that: The scanning bed frame (10) has a collection roller (16) and a release roller (18) rotatably connected to the left and right edges of its inner cavity, respectively. The rear ends of the collection roller (16) and the release roller (18) are connected by a drive. The top wall of the scanning bed frame (10) has symmetrical through slots (19) on its left and right edges. A drive motor (22) for rotating the collection roller (16) is fixedly installed on the left side of the bottom wall of the inner cavity of the scanning bed frame (10). A foot switch (23) electrically connected to the drive motor (22) is provided on the equipment base (11). The inner cavity of the scanning bed frame (10) A C-shaped fixed guide bracket (25) is fixedly installed on the right side of the top wall. A tensioning mechanism is provided inside the fixed guide bracket (25). The tensioning mechanism includes a left-right adjustable tension roller (28) that is slidably connected inside the fixed guide bracket (25). A disinfectant paper (24) is provided on the release roller (18). One end of the disinfectant paper (24) passes through the left end of the tension roller (28), the inside of the strip groove (19) located on the right side, the top wall of the scanning bed frame (10), and the inside of the strip groove (19) located on the left side, and is then fixedly connected to the surface of the collection roller (16).

2. The automatic disposable sheet changing device for CT machine tools according to claim 1, characterized in that: The scanning bed frame (10) is symmetrically provided with openable and sleek covers (13) at both ends, and side sealing plates (14) are symmetrically fixed at both ends of the front end of the scanning bed frame (10).

3. The automatic disposable bed sheet changing device for CT machine tools according to claim 1, characterized in that: The scanning bed frame (10) has a collection connector (15) symmetrically connected to the left edge of the bottom wall of the inner cavity via a bracket. The front and rear ends of the collection roller (16) are fixedly installed with the two collection connectors (15) close to each other. The scanning bed frame (10) has a release connector (17) symmetrically connected to the right edge of the bottom wall of the inner cavity via a bracket. The front and rear ends of the release roller (18) are fixedly installed with the two release connectors (17) close to each other.

4. The automatic disposable bed sheet changing device for CT machine tools according to claim 3, characterized in that: The outer surface of the collection connector (15) located at the rear position is rotatably connected to the outer surface of the release connector (17) located at the rear position via a sprocket and a chain.

5. The automatic disposable bed sheet changing device for CT machine tools according to claim 4, characterized in that: The output end of the drive motor (22) is connected to the outer surface of the collection pipe (15) located at the front side via a pulley and belt.

6. The automatic disposable bed sheet changing device for CT machine tools according to claim 1, characterized in that: The two strip-shaped channels (19) are rotatably connected to two guide rollers (20) that are in rolling contact with one end of the disinfection paper (24) located inside the two strip-shaped channels (19).

7. The automatic disposable sheet changing device for CT machine tools according to claim 1, characterized in that: The fixed guide bracket (25) is provided with a C-shaped movable mounting bracket (26). The front and rear side walls of the fixed guide bracket (25) are provided with two limiting grooves (27) that are adapted to the front and rear ends of the movable mounting bracket (26). The front and rear ends of the movable mounting bracket (26) are slidably connected to the two limiting grooves (27). The tension roller shaft (28) is rotatably installed inside the movable mounting bracket (26). A tension spring (29) is fixedly connected between the left wall of the movable mounting bracket (26) and the inner left wall of the fixed guide bracket (25).

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