Bed sheet traction device and medical transfer bed

Abstract

A bed sheet traction device and a medical transfer bed, the bed sheet traction device comprising: a rotating shaft including a socket; a rotating disk rotatably connected to the rotating shaft, a traction rope being wound around the circumference of the rotating disk; a latch corresponding to the socket and connected to the rotating disk in a radially movable manner along the rotating disk, when the latch is inserted into the socket, the rotating shaft drives the rotating disk to rotate so as to pull the bed sheet from the hospital bed to the transfer bed through the traction rope; when the latch is disengaged from the socket, the rotating disk rotates relative to the rotating shaft to release the traction rope. When the traction rope needs to be connected to the bed sheet, the latch is moved to disengage the latch from the rotating shaft, so that the rotating disk can rotate relative to the rotating shaft to release the traction rope; when the traction rope needs to be pulled to pull the bed sheet, the latch is inserted into the socket of the rotating shaft, so that the rotating shaft drives the rotating disk to rotate to pull the bed sheet, thereby transferring the bed sheet to the medical transfer bed.

Description

Technical Field

[0001] The invention belongs to the field of medical devices, and in particular relates to a bed sheet traction device and a medical transfer bed. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art.

[0003] In large, medium and small hospitals, patients need to be moved when they receive treatment or various examinations. Traditionally, medical staff or family members carry the patients to the corresponding location. This method not only brings a large workload to medical staff and family members, but more importantly, it may cause secondary injuries to the patients during the movement. Existing medical transfer beds are complicated and inconvenient to operate. Summary of the invention

[0004] In view of the above, it is necessary to provide a bed sheet traction device and a medical transfer bed, which can conveniently release or tighten the traction rope.

[0005] A bed sheet pulling device, used for pulling a bed sheet from a hospital bed to a transfer bed, comprising:

[0006] A rotating shaft including a socket;

[0007] A turntable, rotatably connected to the rotating shaft, a traction rope being wound around the circumference of the turntable;

[0008] A latch corresponds to the insertion hole and is connected to the turntable in a radially movable manner. When the latch is inserted into the insertion hole, the rotating shaft drives the turntable to rotate so as to pull the bed sheet from the hospital bed to the transfer bed through the traction rope; when the latch is disengaged from the insertion hole, the turntable rotates relative to the rotating shaft to release the traction rope.

[0009] Preferably, the turntable comprises a through hole extending in the radial direction, and the latch passes through the through hole and is inserted into the insertion hole.

[0010] Preferably, the turntable further comprises a groove extending along the circumference of the turntable, and the traction rope is wound in the groove.

[0011] Preferably, it further comprises an auxiliary wheel, the circumference of which is rotatably arranged relative to the groove, and is used to press the traction rope located in the groove.

[0012] Preferably, the inner wall of the through hole is provided with threads, and the latch is connected to the inner wall of the through hole via the threads.

[0013] Preferably, it also includes:

[0014] A sleeve, arranged in the rotating disk along the radial direction of the rotating disk;

[0015] The elastic body is in contact between the sleeve and the plug. When the plug is separated from the insertion hole, the elastic body is compressed. When the plug is aligned with the insertion hole, the plug is inserted into the insertion hole under the restoring force of the elastic body.

[0016] Preferably, the latch includes a block, and the sleeve includes a bayonet corresponding to the block;

[0017] When the latch is disengaged from the insertion hole, the latch is rotated so that the block contacts the end of the sleeve; when the latch is aligned with the insertion hole, the latch is inserted into the insertion hole under the restoring force of the elastic body and drives the block to be embedded in the bayonet.

[0018] Preferably, it further includes a one-way bearing, the turntable is connected to the rotating shaft through the bearing, and the rotation direction of the bearing is the direction of releasing the traction rope.

[0019] Preferably, it further comprises a clamp, which is connected to the traction rope and is used for clamping the bed sheet.

[0020] A medical transfer bed comprises a bed body and the above-mentioned bed sheet traction device, wherein the rotating shaft is rotatably connected to the bed body along the length direction of the bed body.

[0021] When the traction rope needs to be connected to the bed sheet of the above-mentioned bed sheet traction device and medical transfer bed, the pin is moved to disengage the pin from the rotating shaft, so that the turntable can rotate relative to the rotating shaft to release the traction rope; when the traction rope needs to be pulled to pull the bed sheet, the pin is inserted into the socket of the rotating shaft, so that the rotating shaft drives the turntable to rotate to pull the bed sheet, thereby transferring the bed sheet to the medical transfer bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of a medical transfer bed.

[0024] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure at II-II.

[0025] Figure 3 It is a structural schematic diagram of a bed sheet traction device.

[0026] Figure 4 yes Figure 3 Schematic diagram of the cross section at IV-IV.

[0027] Figure 5 It is a schematic diagram of the structure of the latch, sleeve and elastic body.

[0028] Figure 6 yes Figure 5 Cross-sectional view at VI-VI in the middle.

[0029] Main component symbols

[0030] Bed 10 Sheet traction device 20 Shaft 21 Turntable 22 Depression area 221 Grooves 222 plug 223 Card Block 2231 casing 224 Thread 2241 Bayonet 2242 Training wheels 23 One-way bearings 24 Drive motor 30 Traction rope 40

[0031] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present invention.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0034] In the various embodiments of the present invention, for the convenience of description and not to limit the present invention, the term "connection" used in the patent application specification and claims of the present invention is not limited to physical or mechanical connection, but may include electrical connection, whether direct or indirect. "Up", "down", "below", "left", "right", etc. are only used to indicate relative position relationship. When the absolute position of the described object changes, the relative position relationship also changes accordingly.

[0035] The medical transfer bed is used to transfer patients to the medical transfer bed to transfer patients. Figure 1 This is a schematic diagram of the structure of a medical transfer bed. Figure 1As shown, the medical transport bed includes a bed body 10 and a bed sheet traction device 20. The bed sheet traction device 20 is used to pull the bed sheet on the bed so that the patient moves onto the medical transport bed together with the bed sheet.

[0036] The bed body 10 generally includes a bed board and a baffle plate arranged on one side of the bed board. The bed sheet pulling device 20 is used to transfer the bed sheet together with the patient from the hospital bed to the bed board of the bed body 10.

[0037] Figure 2 yes Figure 1 The schematic diagram of the cross-sectional structure at II-II in FIG. Figure 1 and Figure 2 As shown, the sheet traction device 20 includes a rotating shaft 21, a rotating disk 22, a latch 223, an auxiliary wheel 23 and a traction rope 40. The rotating shaft 21 extends along the length direction of the bed body 10, and is connected to one or more rotating disks 22, latches 223 and auxiliary wheels 23. In this embodiment, one end of the rotating shaft 21 can be connected to the output shaft of the driving motor 30, and the driving motor 30 can drive the rotating shaft 21 to rotate in the forward or reverse direction.

[0038] Figure 3 is a schematic structural diagram of a bed sheet pulling device 20, Figure 4 yes Figure 3 Schematic diagram of the cross section at IV-IV in FIG. Figure 3 and Figure 4 As shown, the rotating shaft 21 includes one or more insertion holes, and the insertion holes extend in the radial direction of the rotating shaft 21. The rotating disk 22 is rotatably connected to the rotating shaft 21 and can rotate relative to the rotating shaft 21. In this embodiment, the bed sheet pulling device 20 also includes a one-way bearing 24, and the rotating disk 22 is connected to the rotating shaft 21 through the one-way bearing 24, so that the rotating disk 22 can only rotate relative to the rotating shaft 21 in the rotation direction of the one-way bearing 24.

[0039] The traction rope 40 is wound around the circumference of the rotating disk 22. When the traction rope 40 is released to connect the bed sheet, the traction rope 40 is pulled to drive the rotating disk 22 to rotate to release the traction rope 40. The rotation direction of the one-way bearing 24 is the direction of releasing the traction rope 40. In this embodiment, the rotating disk 22 further includes a groove 222 extending along the circumference of the rotating disk 22, and the traction rope 40 is wound in the groove 222.

[0040] The thickness of the auxiliary wheel 23 is smaller than or equal to the width of the groove 222. The circumference of the auxiliary wheel 23 is rotatably arranged relative to the groove 222 to press the traction rope 40 in the groove 222 to prevent the traction rope 40 from falling out of the groove 222 when releasing or tightening the traction rope 40.

[0041] Figure 4 yes Figure 3 Schematic diagram of the cross section at IV-IV in FIG. Figure 3 and Figure 4 As shown, the latch 223 corresponds to the insertion hole and is connected to the turntable 22 in a radially movable manner. When the latch 223 is inserted into the insertion hole, the rotating shaft 21 drives the turntable 22 to rotate so as to pull the bed sheet from the hospital bed to the transfer bed through the traction rope 40. When the latch 223 is disengaged from the insertion hole, the turntable 22 rotates relative to the rotating shaft 21 to release the traction rope 40. In this embodiment, the turntable 22 includes a through hole extending in the radial direction, and the latch 223 passes through the through hole and is inserted into the insertion hole. Figure 4 In the illustrated embodiment, the inner wall of the through hole is provided with threads, and the plug 223 is connected to the inner wall of the through hole through the threads. The plug 223 is rotated so that the plug 223 moves along the length direction of the through hole and extends out of the through hole to be inserted into the insertion hole, or retracts along the length direction of the through hole so that the plug 223 is disengaged from the insertion hole.

[0042] Figure 5 2 is a schematic diagram of the structure of the latch 223, the sleeve 224 and the elastic body. Figure 6 yes Figure 5 The cross-sectional view at VI-VI in Fig. Figure 5 and Figure 6 As shown, in another embodiment, the bed sheet pulling device 20 further includes a sleeve 224 and an elastic body. The sleeve 224 is hollow inside and is arranged inside the rotating disk 22 along the radial direction of the rotating disk 22. In this embodiment, the outer wall of the sleeve 224 is provided with a thread 2241 for connecting to the through hole of the rotating disk 22. In order to fix the sleeve 224, a connecting member can be used to pass through the rotating disk 22 along the axial direction of the rotating disk 22 to connect the sleeve 224.

[0043] The elastic body can be a spring, a polymer or other elastic component. The elastic body is located in the sleeve 224, with one end abutting against the end of the plug 223 close to the insertion hole, and the other end abutting against the sleeve 224. In this way, when the plug 223 is separated from the insertion hole, the elastic body is compressed, and when the plug 223 is aligned with the insertion hole, the plug 223 is inserted into the insertion hole under the restoring force of the elastic body.

[0044] In this embodiment, the latch 223 includes a block 2231, and the sleeve 224 includes a bayonet 2242 corresponding to the block 2231. When the latch 223 is disengaged from the insertion hole, the latch 223 is rotated so that the block 2231 abuts against the end of the sleeve 224, so that the elastic body is in a compressed state. When the latch 223 is aligned with the insertion hole, the latch 223 is inserted into the insertion hole under the restoring force of the elastic body and drives the block 2231 to be embedded in the bayonet 2242.

[0045] In addition, the bed sheet traction device 20 may further include a clamp, which is connected to the traction rope 40 and is used to clamp the bed sheet. The turntable 22 also includes a recessed area 221 arranged on the circumference, and the through hole is located on the circumference. When the latch 223 is inserted into the insertion hole, the latch 223 is flush with the circumference of the turntable 22.

[0046] When the traction rope 40 needs to be released, the latch 223 is pulled up and rotated so that the block 2231 of the latch 223 abuts against the end of the sleeve 224. At this time, the elastic body is in a compressed state. Since the latch 223 is separated from the insertion hole, the rotating disk 22 can rotate relative to the rotating shaft 21.

[0047] Since the rotating disk 22 can rotate relative to the rotating shaft 21, the traction rope 40 can be pulled to release the traction rope 40 until the clamp is connected to the bed sheet without rotating the rotating shaft 21. In the process of releasing the traction rope 40, the rotating disk 22 can only rotate in one direction under the action of the one-way bearing 24 to avoid the traction rope 40 being pulled in the wrong direction.

[0048] Next, the latch 223 is rotated so that the block 2231 is aligned with the latch opening 2242 , and the latch 223 abuts against the outer surface of the rotating shaft 21 under the action of the restoring force of the elastic body.

[0049] Then, the rotating shaft 21 is rotated until the insertion hole of the rotating shaft 21 is aligned with the plug 223 , so that the plug 223 is inserted into the insertion hole under the action of the restoring force of the elastic body, so that the rotating disk 22 is fixed to the rotating shaft 21 .

[0050] Finally, the drive motor 30 is started, and the drive motor 30 drives the rotating shaft 21 to rotate, and the rotating shaft 21 drives the turntable 22 to rotate. During the rotation of the turntable 22, the traction rope 40 is slowly tightened, and the leaflet on the bed is transferred together with the patient to the bed body 10 of the medical transfer bed through the traction rope 40, so as to realize the transfer of the patient.

[0051] In several specific embodiments provided by the present invention, it should be understood that the disclosed structures and components can be implemented in other ways. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is obvious that the word "including" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the system claim can also be implemented by the same unit or device through software or hardware. The words first, second, etc. are used to indicate the name, and do not indicate any specific order.

[0052] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention is described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A bed sheet pulling device, used for pulling a bed sheet from a hospital bed to a transfer bed, characterized in that: include: A rotating shaft including a socket; A turntable, rotatably connected to the rotating shaft, a traction rope being wound around the circumference of the turntable; a latch, corresponding to the insertion hole and connected to the turntable in a radially movable manner along the turntable, wherein when the latch is inserted into the insertion hole, the rotating shaft drives the turntable to rotate so as to pull the bed sheet from the hospital bed to the transfer bed through the traction rope; When the latch is disengaged from the insertion hole, the rotating disk rotates relative to the rotating shaft to release the traction rope; Also includes: A sleeve, arranged in the rotating disk along the radial direction of the rotating disk; an elastic body, which abuts between the sleeve and the plug, and when the plug is separated from the insertion hole, the elastic body is compressed; when the plug is aligned with the insertion hole, the plug is inserted into the insertion hole under the action of the restoring force of the elastic body; The latch includes a clamping block, and the sleeve includes a clamping port corresponding to the clamping block; When the latch is disengaged from the insertion hole, the latch is rotated so that the block contacts the end of the sleeve; when the latch is aligned with the insertion hole, the latch is inserted into the insertion hole under the restoring force of the elastic body and drives the block to be embedded in the bayonet; The rotating disk further comprises a groove extending along the circumference of the rotating disk, and the traction rope is wound in the groove; It also includes an auxiliary wheel, the circumference of which is rotatably arranged relative to the groove and is used to press the traction rope located in the groove.

2. The sheet pulling device according to claim 1, characterized in that: The rotating disk comprises a through hole extending in the radial direction, and the latch passes through the through hole and is inserted into the insertion hole.

3. The bed sheet pulling device according to claim 2, characterized in that: The inner wall of the through hole is provided with threads, and the latch is connected to the inner wall of the through hole via the threads.

4. The bed sheet pulling device according to claim 1, characterized in that: It also includes a one-way bearing, and the turntable is connected to the rotating shaft through the one-way bearing, and the rotation direction of the one-way bearing is the direction of releasing the traction rope.

5. The bed sheet pulling device according to claim 1, characterized in that: Also included is a clamp, which is connected to the traction rope and is used to clamp the bed sheet.

6. A medical transfer bed, comprising a bed body, characterized in that: It also includes the sheet traction device according to any one of claims 1 to 5, wherein the rotating shaft is rotatably connected to the bed body along the length direction of the bed body.

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