Assistive devices for patient transport

Abstract

The present application provides an auxiliary device for transporting patients, comprising: a bed sheet (1) for carrying patients and having a plurality of lifting rings (11) arranged along the edge; a support frame (2) that can be fixed to the ground or can be moved; a first fixed arm (31) vertically arranged on the support frame (2), and a first movable arm (32) that can move vertically along the first fixed arm (31); a second fixed arm (41) horizontally arranged on the first movable arm (32), and the second movable arm (42) can move horizontally along the second fixed arm (41); a tensioning arm (5) arranged on the second movable arm (42), and the tensioning arm (5) can hook all the lifting rings (11) with all the hooks (51) so that the bed sheet (1) is in a maximum flattened state. The auxiliary device provided by the present application can realize the mechanical transportation of patients between beds or between beds and testing tables without manual transportation, which saves manpower and avoids increasing the pain of patients and causing secondary injuries to patients.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to medical auxiliary equipment. Background Art

[0002] At present, patients usually need to undergo examinations, surgeries or hospitalization during medical treatment. In the above process, patients need to get on and off examination equipment (such as CT equipment), or transfer from a temporary bed to a fixed bed (such as from an ambulance bed or an emergency room bed to an inpatient bed), or from a fixed bed to a temporary bed (such as from an inpatient bed to an operating bed). Therefore, if the patient is unable to move during treatment, he or she needs to be accompanied by someone to carry him or her (usually 2 to 4 people are required).

[0003] However, most examination departments are only equipped with medical staff responsible for operating the examination equipment, and there are no extra auxiliary medical staff. If every patient needs medical staff to help carry the patient during the examination, it will inevitably increase the workload of the hospital's examination department and reduce the examination efficiency. Equipping more auxiliary medical staff will increase the cost of the hospital and cause a waste of human resources. Given the current human resources situation in the hospital, most of the time, the accompanying relatives need to carry the patient themselves.

[0004] However, in some sudden accidents (such as traffic accidents), patients are usually sent directly to the hospital by emergency personnel. No relatives can rush to the scene immediately to assist medical staff in carrying the patients (such as getting on and off the examination equipment). At this time, auxiliary medical staff can only be temporarily mobilized to assist in the transportation. However, in these sudden accidents, patients also suffer very serious internal and external injuries (such as internal organ damage and rib fractures). The process of transportation may cause secondary injuries to the patients. The auxiliary medical staff are usually under great pressure because they are worried about the possibility of medical liability and medical disputes.

[0005] Furthermore, with the accelerated pace of life and the aging of the population, the main labor force in the family is away from home all year round. Therefore, when the elderly at home need to be hospitalized due to illness or accidental injury, there is no one to accompany, take care of, or help move (get on and off the inspection equipment or transfer the bed), which has become an increasingly prominent problem.

[0006] In addition, there are the following main disadvantages in relying on manual lifting to achieve transportation, bed transfer and relocation:

[0007] 1. When dealing with infectious diseases, manual lifting and transportation will inevitably increase the risk of infection for people in contact.

[0008] 2. Manual lifting cannot achieve a balanced force and speed during the lifting process, which can easily increase the patient's pain.

[0009] Based on this, providing an auxiliary device for transporting patients has become an urgent problem to be solved. Summary of the invention

[0010] In view of the defects in the background technology, the present invention provides an auxiliary device for transporting patients, comprising:

[0011] a bed sheet for carrying a patient, the bed sheet having a plurality of lifting loops arranged along an edge;

[0012] A support frame that can be fixed to the ground or can be moved;

[0013] A first support arm having a first fixed arm and a first movable arm, wherein the first fixed arm is vertically arranged on the support frame, and the first movable arm can move vertically along the first fixed arm (31);

[0014] a second supporting arm having a second fixed arm and a second movable arm, wherein the second fixed arm is horizontally arranged on the first movable arm, and the second movable arm can move horizontally along the second fixed arm;

[0015] The tensioner on the second movable arm has a plurality of hooks matched with the plurality of rings, and the tensioner arm can hook all the rings with all the hooks to make the bed sheet in a maximum flattened state.

[0016] The support frame of the auxiliary device for transferring patients provided by the present invention can be directly fixed to the ground, near a hospital bed or a test bench of a testing device, or can be designed to be movable so as to increase the scope of application. The auxiliary device can adjust the position of the tensioning arm by means of the second support arm, so that the tensioning arm hook hooks all the bed sheet rings, and then lifts the bed sheet connected to the patient through the first support arm and places it on another bed or a test bench of the testing device. In this process, no manual handling is required. The first movable arm and the second movable arm can be driven by a motor to achieve uniform motion, thereby controlling the force during the handling process to avoid increasing the patient's pain and causing secondary damage to the patient.

[0017] In some embodiments of the present invention, the support frame is movable, and the auxiliary device includes a telescopic support leg disposed at the bottom of the support frame.

[0018] When the support frame provided by the present invention is movable, the auxiliary device includes a retractable support leg. The retractable support leg can fix the support frame to the ground during the process of the tensioning arm connecting the bed sheet to carry the patient, thereby preventing the support frame from moving due to the heavy weight of the patient, thereby eliminating safety hazards.

[0019] In some embodiments of the present invention, the auxiliary device for transporting patients includes a third support arm having a third fixed arm and a third movable arm, the third fixed arm is horizontally arranged on the support frame and can rotate horizontally relative to the support frame, and the third movable arm can move horizontally along the third fixed arm; the first fixed arm is arranged on the third movable arm.

[0020] In order to increase the degree of freedom of the auxiliary device for transporting patients provided by the present invention, a third support arm can also be arranged on the support frame, and the third support arm can drive the first support arm and the second support arm to rotate in the horizontal plane, so that the tensioning arm arranged on the second support arm can better correspond to the position of the hanging ring on the bed sheet, thereby safely transporting the patient.

[0021] In some embodiments of the present invention, the auxiliary device for transporting patients includes a bed fixing column arranged on the support frame; a bed body for laying the bed sheet arranged on the bed fixing column; and the third fixed arm and the bed fixing column are pivotally connected.

[0022] The auxiliary device for transporting patients provided by the present invention can itself have a bed body, which can be used as a temporary bed or a fixed bed.

[0023] In some embodiments of the present invention, the first fixed arm is pivotally connected to the third movable arm, and the first movable arm is pivotally connected to the second fixed arm, so that the first support arm, the second support arm and the third support arm can be in a horizontally stacked storage state by pivoting with each other, and the height of the three after horizontal stacking is less than or equal to the height of the fixed column of the bed.

[0024] In order to save space, the first support arm, the second support arm and the third support arm of the present invention can be pivotally stored at the bottom of the bed, so that the patient can stand up and lie down freely, avoiding the above-mentioned support arms or tension arms from causing bumps to the patient.

[0025] In some embodiments of the present invention, the end of the first movable arm is bent to form a first bent end; a disc-shaped first swivel support lower connecting member is fixedly arranged on the first bent end; a first swivel support upper connecting member is buckled on the first swivel support lower connecting member, a first chamber is formed between the first swivel support lower connecting member and the first swivel support upper connecting member, the second fixed arm is fixedly arranged on the first swivel support upper connecting member; a first driven gear is fixedly arranged on the first swivel support upper connecting member, and the first driven gear is located in the first chamber; a first motor is fixedly arranged on the first bent end, and the output shaft of the first motor passes through the first swivel support lower connecting member and enters the first chamber; a first driving gear is fixedly arranged on the output shaft of the first motor; and a first driven gear located in the first chamber that meshes with the first driven gear and the first driving gear respectively. The cam is an angularly-shaped part of a second rotatable support having a first end and a second end, and the cam is a gear that is adapted to move relative to the first end of the slewing ring. The cam is configured to move relative to the first end of the slewing ring, and the cam is configured to move relative to the first end of the slewing ring. The cam is configured to move relative to the first end of the slewing ring, and the cam is a gear that is adapted to move relative to the first end of the slewing ring.

[0026] In some embodiments of the present invention, the bed body includes at least a first supporting plate fixedly connected to the fixed column of the bed body; a second supporting plate pivotally connected to one end of the first supporting plate; and a third supporting plate pivotally connected to the other end of the first supporting plate; the first supporting plate, the second supporting plate and the third supporting plate can form a seat state by pivoting with each other.

[0027] When the patient is unable to move and lie directly on the bed, the first, second and third supporting plates of the bed can be pivoted to a seat state, so that the patient can sit on the first supporting plate and lean against the third supporting plate. Then the supporting plates are pivoted to each other to form a flat bed state.

[0028] In some embodiments of the present invention, the first bearing plate, the second bearing plate and the third bearing plate can be pivoted relative to each other to form a seat state under the drive of an electric cylinder.

[0029] In some embodiments of the present invention, the first support arm also includes a first ball screw vertically fixed on the first fixed arm through a first screw positioning bearing; a first movable arm associated with the first ball screw, so that the first movable arm can move vertically driven by the first ball screw; and a guide bearing arranged on the first movable arm for fitting with the first fixed arm.

[0030] In some embodiments of the present invention, the second support arm also includes a second ball screw horizontally fixed on the second fixed arm through a second screw positioning bearing; and a second movable arm associated with the second ball screw, so that the second movable arm can move horizontally driven by the second ball screw.

[0031] In some embodiments of the present invention, the second support arm also includes a positioning plate fixedly disposed at the end of the second movable arm, the width of the positioning plate being greater than the width of the second movable arm; a rotating shaft symmetrically disposed on the positioning plate; a suspension arm having a suspension node fixedly disposed on the rotating shaft so that the suspension arm can rotate relative to the second movable arm; and the tensioning arm is suspended on the suspension arm by means of the suspension node.

[0032] The second support arm of the auxiliary device for transferring patients provided by the present invention can be provided with two pivotable suspension arms to suspend a pair of tension arms. When no tension arms are suspended, the auxiliary device can be used as a general orthopedic bed, and if the patient's leg is injured and needs to be suspended after plastering, the arm suspension can be used as a suspension point for the leg bandage.

[0033] In some embodiments of the present invention, the third support arm also includes a third fixed arm horizontally arranged on the fixed column of the bed through a slewing bearing, and the third fixed arm can rotate horizontally relative to the fixed column of the bed; a third ball screw horizontally fixed on the third fixed arm through a third screw positioning bearing; and a third movable arm associated with the third ball screw, so that the third movable arm can move horizontally driven by the third ball screw.

[0034] In some embodiments of the present invention, there are at least two tensioning arms, and each of the tensioning arms comprises:

[0035] A vertical connecting rod having an upper end for connecting to the second movable arm;

[0036] A first connecting member fixedly disposed at one end of the vertical connecting rod;

[0037] A second connecting member slidably disposed on the vertical connecting rod;

[0038] An elastic member sleeved on the vertical connecting rod and located between the first connecting member and the second connecting member;

[0039] Two main arms symmetrically hinged to two ends of the second connecting member;

[0040] A hook provided at the end of each main arm;

[0041] A secondary arm with two ends respectively hinged to the main arm and the first connecting member.

[0042] The tensioning arm provided by the present invention can open the main arm at a larger angle when the patient's weight is greater, thereby achieving tensioning of the bed sheet to a maximum flattened state, so that the patient can be safely carried to another bed or a testing table of a testing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the structure of an auxiliary device for transporting a patient provided in Example 1 of the present invention;

[0044] Figure 2 This is a schematic diagram of the structure of a bed sheet in Embodiment 1 of the present invention;

[0045] Figure 3 is a side cross-sectional view of the first support arm in Example 1 of the present invention;

[0046] Figure 4 is a top cross-sectional view of the first support arm in Example 1 of the present invention;

[0047] Figure 5 is a side cross-sectional view of the second support arm in Embodiment 1 of the present invention;

[0048] Fig. 6A is a front end cross-sectional view of the second support arm in Embodiment 1 of the present invention;

[0049] Figure 6B is a rear end cross-sectional view of the second support arm in Embodiment 1 of the present invention;

[0050] Fig. 7A Schematic diagram of the suspension structure of the second support arm in Embodiment 1 of the present invention (in the stowed state);

[0051] Figure 7B Schematic diagram of the suspension structure of the second support arm in Embodiment 1 of the present invention (in the unfolded state);

[0052] Figure 8 Schematic diagram of the structure of the tensioning arm in Embodiment 1 of the present invention;

[0053] Fig. 9 A schematic diagram of the structure of an auxiliary device for transporting a patient provided in Example 2 of the present invention;

[0054] Fig.10 A schematic diagram of the structure of an auxiliary device for transporting a patient provided in Example 2 of the present invention (working state);

[0055] Fig.11 is a schematic structural diagram of the third supporting arm in Embodiment 2 of the present invention;

[0056] Fig.12 A schematic diagram of the structure of an auxiliary device for transporting a patient provided in Example 3 of the present invention (in an expanded state);

[0057] Fig.13 A schematic diagram of the structure of an auxiliary device for transporting a patient provided in Example 3 of the present invention (in storage state);

[0058] Fig.14 This is a schematic diagram of the structure of the pivot mechanism connecting the first movable arm and the second fixed arm in embodiment 3 of the present invention;

[0059] Fig.15 It is a schematic diagram of the structure of the pivot mechanism connecting the third movable arm and the first fixed arm in embodiment 3 of the present invention;

[0060] Fig.16 This is a schematic diagram of the structure of the auxiliary device for transporting patients provided in Example 4 of the present invention (seat status). DETAILED DESCRIPTION

[0061] In order to make the purpose, technical scheme and advantages of the invention clearer, the invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to facilitate a thorough understanding of the present invention and to fully convey the concept of the present invention to those skilled in the art.

[0062] Example 1

[0063] like Figure 1 As shown, the auxiliary device for transporting patients provided in this embodiment mainly includes a bed sheet 1 for carrying the patient, a support frame 2, a first support arm 3, a second support arm 4, and a tensioning arm 5.

[0064] Reference Figure 2 As shown, the bed sheet 1 can be laid on an existing inspection equipment support platform, a temporary bed or a fixed bed, and is used to carry patients. In this embodiment, the bed sheet 1 has four symmetrically arranged hanging rings 11, for example, the hanging rings 11 can be arranged near the four corners of the bed sheet 1. In this embodiment, in order to increase the load-bearing weight of the bed sheet 1, reinforcing strips are provided along the edge and the middle of the bed sheet 1. Generally, the bed sheet 1 does not contain metal substances so that it can be used in inspection equipment such as CT.

[0065] The support frame 2 can be directly fixed to the ground, or the support frame 2 can be movable, for example, rollers or pulleys can be provided at the bottom of the support frame 2 .

[0066] Reference Figure 3 and 4 As shown, the first support arm 3 has a first fixed arm 31 and a first movable arm 32. The first fixed arm 31 is vertically fixed on the support frame 2, and the first movable arm 32 can move vertically along the first fixed arm 31 (as shown in FIG. Figure 1 and Figure 3 vertical direction as shown).

[0067] The first support arm 3 in this embodiment mainly includes a first fixed arm 31, a first movable arm 32, a first screw positioning bearing 33, a first ball screw 34, and a guide bearing 35. Specifically, the first fixed arm 31 is vertically arranged on the support frame 2, and vertical grooves are symmetrically arranged at both ends of the first fixed arm 31. The first movable arm 32 is arranged in the groove and can move vertically along the first fixed arm 31. Taking the groove on the right side as an example, the first ball screw 34 is vertically fixed on the first fixed arm 31 through a pair of first screw positioning bearings 33, and the first movable arm 32 is associated with the first ball screw 34 (for example, the first movable arm 32 itself has a threaded hole matching the first ball screw 34, or an additional fixing element is connected to the first movable arm 32, and the fixing element has a threaded hole matching the first ball screw 34). When the first ball screw 34 rotates, the first movable arm 32 can move vertically along the first fixed arm 31. The first movable arm 32 may also be provided with a guide bearing 35 for fitting with the first fixed arm 31 , so that the guide bearing 35 is utilized to provide guidance and support for the vertical movement of the first movable arm 32 .

[0068] Those skilled in the art will appreciate that if it is necessary to limit the movement stroke of the first moving arm 32 , limiters 36 may be provided at both ends of the first ball screw 34 .

[0069] Based on the above structure, those skilled in the art should also be able to understand that the grooves do not have to be symmetrically arranged at the two ends of the first fixed arm 31, and there may be only one groove arranged in the middle of the first fixed arm 31. Alternatively, the first fixed arm 31 may be cylindrical, and the grooves may be distributed along the circumference of the first fixed arm 31.

[0070] Combination Figure 5 , Fig. 6A and Figure 6BAs shown, the second support arm 4 has a second fixed arm 41 and a second movable arm 42. The second fixed arm 41 is horizontally fixed on the first movable arm 32, and the second movable arm 42 can move horizontally along the second fixed arm 41 (as shown in FIG. Figure 1 The second support arm 4 in this embodiment mainly includes a second fixed arm 41, a second movable arm 42, a second screw positioning bearing 43, and a second ball screw 44. Specifically, the horizontally arranged second fixed arm 41 is fixedly connected to the first movable wall 32 (refer to Figure 3 , that is, the second fixed arm 41 can move vertically under the drive of the first movable wall 32). The second ball screw 44 is arranged inside the second fixed arm 41 through a pair of second screw positioning bearings 43. The second movable arm 42 is associated with the second ball screw 44 (for example, the second movable arm 42 itself has a threaded hole matching the second ball screw 44, or an additional fixing element is connected to the second movable arm 42, and the fixing element has a threaded hole matching the second ball screw 44). When the second ball screw 44 rotates, the second movable arm 42 can move horizontally along the second fixed arm 41.

[0071] It is particularly important to point out that, as shown in the figure, the second fixed arm 41 in this embodiment has an open internal space, and the second movable arm 42 is sleeved inside the second fixed arm 41 so that the two can move horizontally relative to each other (or called telescopic movement). In order to ensure that the second movable arm 42 can move more smoothly, the inner side of the second fixed arm 41 and the outer side of the second movable arm 42 can be respectively provided with a guide bearing 45. Those skilled in the art should be able to understand that the second fixed arm 41 adopts a hollow design in order to arrange the second screw positioning bearing 43, the second ball screw 44, the guide bearing 45, etc. inside it to prevent exposure and cause safety hazards. However, the second fixed arm 41 can actually be designed as a solid arm-shaped structure, the second ball screw 44 is arranged on the outer surface of the second fixed arm 41 through a pair of second screw positioning bearings 43, and the second movable arm 42 is associated with the second ball screw 44. When the second ball screw 44 rotates, the second movable arm 42 can move horizontally along the second fixed arm 41 (that is, the second fixed arm 41 and the second movable arm 42 are in a stacked position relationship of upper and lower).

[0072] Reference Fig. 7A and Figure 7BAs shown, further, the second support arm 4 may also include a positioning plate 46, a rotation axis 47, a suspension arm 48 and a suspension node 49. The positioning plate 46 is fixedly arranged at the end of the second movable arm 42, and the width of the positioning plate 46 is slightly larger than the width of the second movable arm 42. The rotation axis 47 is symmetrically arranged at the end of the positioning plate 46 that exceeds the width of the second movable arm 42. The suspension arm 48 is fixedly arranged on the rotation axis 47 so that the suspension arm 48 can rotate relative to the second movable arm 42. The tensioning arm 5 is suspended by means of a suspension node 49 arranged on the suspension arm 48 (as shown in FIG. 1 ). Figure 1 As shown, when two tensioning arms 5 are used, the two are actually in a front-to-back overlapping state).

[0073] Reference Figure 8 As shown, the tensioning arm 5 in this embodiment includes a hook 51, a vertical connecting rod 52, a first connecting member 53, a second connecting member 54, an elastic member 55, a main arm 56 and a secondary arm 57. Specifically, the upper end of the vertical connecting rod 52 is used to connect with the second movable arm 42 (specifically, the suspension arm 48 on the second movable arm 42). The first connecting member 53 is fixedly arranged at the lower end of the vertical connecting rod 52, and the second connecting member 54 is slidably sleeved on the vertical connecting rod 52. The elastic member 55 is sleeved on the vertical connecting rod 52 and is located between the first connecting member 53 and the second connecting member 54. The two main arms 56 are symmetrically hinged at the two ends of the second connecting member 54, and the hook 51 is fixedly arranged at the ends of the two main arms 56. There are two secondary arms 57, and the two ends of each secondary arm 57 are respectively hinged to the main arm 56 and the first connecting member 53.

[0074] Therefore, in a normal state, the second connecting member 54 is maintained at a certain position on the vertical connecting rod 52 by the elastic force of the elastic member 55, and the two main arms 56 have an expansion angle facing obliquely downward. When the hook 51 cooperates with the ring 11 on the bed sheet 1, the first movable arm 32 drives the vertical connecting rod 52 to rise upward, and the second connecting member 54 slides downward and squeezes the elastic member 55 under the action of the patient's gravity. At this time, the expansion angle of the two main arms 56 increases continuously until it reaches the maximum expansion angle, thereby flattening the bed sheet 1 to the maximum extent.

[0075] Based on the above structure, those skilled in the art should be able to understand that during the uniform rising process of the first movable arm 32, the greater the weight of the patient, the greater the degree to which the elastic member 55 is compressed by the second connecting member 54, the greater the unfolding angle of the two main arms 56, and the tighter the fit between the hook 51 and the ring 11 on the bed sheet 1 (similar to a locking structure).

[0076] When in use, the bed sheet 1 is laid on an existing inspection equipment carrier, a temporary bed or a fixed bed, and the patient lies flat on the bed sheet 1. The first movable arm 32 is vertically lowered, and the horizontal position of the tensioning arm 5 arranged thereon is adjusted by the second movable arm 42, and all the hooks 51 of the tensioning arm 5 are hooked to all the rings 11, and the bed sheet 1 is in the maximum flattened state under the tension of the tensioning arm 5. Next, the operator raises the first movable arm 32 vertically, and uses the second movable arm 42 to adjust the horizontal position of the tensioning arm 5 arranged thereon, so that the tensioning arm 5 is located above another inspection equipment carrier, temporary bed or fixed bed to which the patient needs to be transported. Subsequently, the operator lowers the first movable arm 32 vertically again, and places the bed sheet 1 together with the patient on another inspection equipment carrier, temporary bed or fixed bed. Finally, all the hooks 51 of the tensioning arm 5 are detached from all the rings 11. The operator uses the auxiliary device to complete the transportation of the patient.

[0077] It should be noted that those skilled in the art should be able to understand that in some cases, there may be more hooks 11, and they may be symmetrically distributed along the edge of the bed sheet. Only one tensioning arm 5 may be provided, and it may be directly suspended on the second movable arm 42 without the above-mentioned suspension arm 48 and suspension node 49. In this case, the tensioning arm 5 has more hooks 51, main arms 56 and secondary arms 57 (as long as the number is equivalent to the number of hooks 11), which may be designed to be distributed circumferentially along the vertical connecting rod 52.

[0078] Furthermore, since the support frame 2 is designed to be movable, the present embodiment is provided with a telescopic support leg 21 at the bottom of the support frame 2. The telescopic support leg 21 can make the moving mechanism (such as a roller or a pulley) on the support frame 2 leave the ground during the process of lifting the patient, so that the entire auxiliary device will not move during the lifting process, thereby avoiding accidents.

[0079] Example 2

[0080] Reference Fig. 9 and 10 As shown, the difference between this embodiment and embodiment 1 is that the auxiliary device for transporting patients further includes a third support arm 6 , a bed fixing column 22 and a bed 7 .

[0081] Specifically, the bed body 7 is fixedly arranged on the support frame 2 through the bed body fixing column 22, and the bed body 7 is used to lay the bed sheet 1. The third support arm 6 has a third fixed arm 61 and a third movable arm 62. The third fixed arm 61 and the bed body fixing column 22 are pivotally connected.

[0082] Combination Fig.11As shown, the third support arm 6 in this embodiment includes a third fixed arm 61, a third movable arm 62, a slewing bearing 63, a third screw positioning bearing 64 and a third ball screw 65. Among them, the third fixed arm 61 is horizontally arranged on the bed fixed column 22 through the slewing bearing 63, so that the third fixed arm 61 can rotate horizontally relative to the bed fixed column 22. The third ball screw 65 is arranged inside the third fixed arm 61 through a pair of third screw positioning bearings 64. The third movable arm 62 is associated with the third ball screw 65 (for example, the third movable arm 62 itself has a threaded hole matching the third ball screw 65, or an additional fixing element is connected to the third movable arm 62, and the fixing element has a threaded hole matching the third ball screw 65). When the third ball screw 65 rotates, the third movable arm 62 can move horizontally along the third fixed arm 61.

[0083] Similarly, as shown in the figure, the third fixed arm 61 in this embodiment has an open internal space, and the third movable arm 62 is sleeved inside the third fixed arm 61 to achieve the horizontal movement (or telescopic movement) of the two. In order to ensure that the third movable arm 62 can move more smoothly, the inner side of the third fixed arm 61 and the outer side of the third movable arm 62 can be respectively provided with a guide bearing 66. Those skilled in the art should understand that the third fixed arm 61 adopts a hollow design in order to arrange the third screw positioning bearing 64, the third ball screw 65, the guide bearing 66, etc. inside it to prevent exposure and cause safety hazards. However, the third fixed arm 61 can actually be designed as a solid arm-shaped structure, the third ball screw 65 is arranged on the outer surface of the third fixed arm 61 through a pair of third screw positioning bearings 64, and the third movable arm 62 is associated with the third ball screw 65. When the third ball screw 65 rotates, the third movable arm 62 can move horizontally along the third fixed arm 61 (that is, the third fixed arm 61 and the third movable arm 62 are in a stacked position relationship).

[0084] Example 3

[0085] Reference Fig.12 and 13 As shown, the difference between this embodiment and embodiment 2 is that the first fixed arm 31 is pivotally connected to the third movable arm 62, and the first movable arm 32 is pivotally connected to the second fixed arm 41, so that the first support arm 3, the second support arm 4 and the third support arm 6 can be in a horizontally stacked storage state by pivoting with each other, and the height of the three after horizontal stacking is less than or equal to the height of the bed fixed column 22.

[0086] Further, refer to Fig.14As shown, the end of the first movable arm 32 is bent to form a first bent end 321 (bent 45 degrees), and the disc-shaped (disc-shaped in this embodiment) first slewing support lower connecting member 322 is fixedly arranged on the first bent end 321. The first slewing support upper connecting member 323 is buckled on the first slewing support lower connecting member 322, and a first chamber 324 is formed between the first slewing support lower connecting member 322 and the first slewing support upper connecting member 323. The above-mentioned second fixed arm 41 is fixedly arranged on the first slewing support upper connecting member 323 (the second fixed arm 41 remains in a horizontal state). The first driven gear 325 is fixedly arranged on the first slewing support upper connecting member 323 and is located in the first chamber 324. The first motor 326 is fixedly arranged on the first bent end 321, and the output shaft of the first motor 326 passes through the first slewing support lower connecting member 322 and enters the first chamber 324. The first driving gear 327 is fixedly disposed on the output shaft of the first motor 326. The first conversion gear 328 is located in the first chamber 324, and is respectively engaged with the first driven gear 325 and the first driving gear 327, so as to transmit the power of the first driving gear 327 to the first driven gear 325. Based on the above structure, the first slewing support upper connecting member 323 can rotate relative to the first slewing support lower connecting member 322 to achieve the stacking of the first support arm 3 and the second support arm 4.

[0087] Similarly, refer to Fig.15 As shown, the end of the third movable arm 62 is bent to form a second bent end 621 (bent 45 degrees), and the disc-shaped (disc-shaped in this embodiment) second slewing support lower connecting member 622 is fixedly arranged on the second bent end 621. The second slewing support upper connecting member 623 is buckled on the second slewing support lower connecting member 622, and a second chamber 624 is formed between the second slewing support lower connecting member 622 and the second slewing support upper connecting member 623. The above-mentioned first fixed arm 31 is fixedly arranged on the second slewing support upper connecting member 623 (the first fixed arm 31 remains in a vertical state). The second driven gear 625 is fixedly arranged on the second slewing support upper connecting member 623 and is located in the second chamber 624. The second motor 626 is fixedly arranged on the second bent end 621, and the output shaft of the second motor 626 passes through the second slewing support lower connecting member 622 and enters the second chamber 624. The second driving gear 627 is fixedly disposed on the output shaft of the second motor 626. The second conversion gear 628 is located in the second chamber 624, and is respectively engaged with the second driven gear 625 and the second driving gear 627, thereby transmitting the power of the second driving gear 627 to the second driven gear 625. Based on the above structure, the second slewing support upper connecting member 623 can rotate relative to the second slewing support lower connecting member 622 to achieve the stacking of the first support arm 3 and the third support arm 6.

[0088] Example 4

[0089] Reference Fig.13 , combined with Fig.16 , the difference between this embodiment and embodiment 3 is that the bed body 7 at least includes a first bearing plate 71, a second bearing plate 72, and a third bearing plate 73. Among them, the first bearing plate 71 is fixedly connected to the above-mentioned bed body fixed column 22. The second bearing plate 72 is pivotally connected to one end of the first bearing plate 71. The third bearing plate 73 is pivotally connected to the other end of the first bearing plate 71. The first bearing plate 71, the second bearing plate 72, and the third bearing plate 73 can form a seat state by pivoting with each other.

[0090] Furthermore, the first bearing plate 71 , the second bearing plate 72 and the third bearing plate 73 can be pivoted relative to each other to form a seat state under the drive of the electric cylinder.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. An auxiliary device for transporting a patient, characterized in that: include: A bed sheet (1) for carrying a patient, the bed sheet (1) having a plurality of lifting rings (11) arranged along the edge; A support frame (2) that can be fixed to the ground or can be moved; a third support arm (6) having a third fixed arm (61) and a third movable arm (62), wherein the third fixed arm (61) is horizontally arranged on the support frame (2) and can rotate horizontally relative to the support frame (2), and the third movable arm (62) can move horizontally along the third fixed arm (61); A first support arm (3) having a first fixed arm (31) and a first movable arm (32), wherein the first fixed arm (31) is pivotally connected to the third movable arm (62), and the first movable arm (32) is capable of vertically moving along the first fixed arm (31); A second supporting arm (4) having a second fixed arm (41) and a second movable arm (42), wherein the second fixed arm (41) is pivotally connected to the first movable arm (32), and the second movable arm (42) is capable of horizontally moving along the second fixed arm (41); The first support arm (3), the second support arm (4) and the third support arm (6) can be in a horizontally stacked storage state by pivoting relative to each other; A tensioning arm (5) is arranged on the second movable arm (42), and the tensioning arm (5) has a plurality of hooks (51) matching the plurality of rings (11). The tensioning arm (5) can hook all the rings (11) with all the hooks (51) to make the bed sheet (1) be in a maximum flattened state.

2. The auxiliary device for transporting a patient according to claim 1, characterized in that: The support frame (2) is movable, and the auxiliary device comprises: A telescopic support leg (21) is arranged at the bottom of the support frame (2).

3. The auxiliary device for transporting a patient according to claim 2, characterized in that: include: A bed fixing column (22) disposed on the support frame (2); A bed body (7) arranged on the bed body fixing column (22) and used for laying the bed sheet (1); The third fixed arm (61) and the bed fixed column (22) are pivotally connected.

4. The auxiliary device for transporting a patient according to claim 3, characterized in that: The height of the first support arm (3), the second support arm (4) and the third support arm (6) when stacked horizontally is less than or equal to the height of the bed body fixed column (22).

5. The auxiliary device for transporting a patient according to claim 4, characterized in that: The end of the first movable arm (32) is bent to form a first bent end (321); a disc-shaped first slewing support lower connecting member (322) fixedly arranged on the first bent end (321); a first slewing support upper connecting piece (323) buckled on the first slewing support lower connecting piece (322), a first chamber (324) being formed between the first slewing support lower connecting piece (322) and the first slewing support upper connecting piece (323), and the second fixed arm (41) being fixedly disposed on the first slewing support upper connecting piece (323); a first driven gear (325) fixedly arranged on the first slewing support upper connecting member (323), wherein the first driven gear (325) is located in the first chamber (324); a first motor (326) fixedly arranged on the first bent end (321), wherein an output shaft of the first motor (326) passes through the first slewing support lower connecting member (322) and enters the first chamber (324); a first driving gear (327) fixedly arranged on the output shaft of the first motor (326); a first conversion gear (328) located in the first chamber (324) and meshing with the first driven gear (325) and the first driving gear (327) respectively; The end of the third movable arm (62) is bent to form a second bent end (621); a disc-shaped second slewing support lower connecting member (622) fixedly arranged on the second bent end (621); a second slewing support upper connecting piece (623) buckled with the second slewing support lower connecting piece (622), a second chamber (624) being formed between the second slewing support lower connecting piece (622) and the second slewing support upper connecting piece (623), and the first fixed arm (31) being fixedly arranged on the second slewing support upper connecting piece (623); a second driven gear (625) fixedly arranged on the second slewing support upper connecting member (623), wherein the second driven gear (625) is located in the second chamber (624); a second motor (626) fixedly arranged on the second bent end (621), wherein an output shaft of the second motor (626) passes through the second slewing support lower connecting member (622) and enters the second chamber (624); a second driving gear (627) fixedly arranged on the output shaft of the second motor (626); A second conversion gear (628) is located in the second chamber (624) and meshes with the second driven gear (625) and the second driving gear (627) respectively.

6. The auxiliary device for transporting a patient according to claim 3, characterized in that: The bed (7) at least comprises: A first bearing plate (71) fixedly connected to the bed body fixed column (22); a second carrying plate (72) pivotally connected to one end of the first carrying plate (71); a third supporting plate (73) pivotally connected to the other end of the first supporting plate (71); The first supporting plate (71), the second supporting plate (72) and the third supporting plate (73) can form a seat state by pivoting relative to each other.

7. The auxiliary device for transporting a patient according to claim 6, characterized in that: The first bearing plate (71), the second bearing plate (72) and the third bearing plate (73) can be pivoted relative to each other to form a seat state under the drive of an electric cylinder.

8. The auxiliary device for transporting a patient according to claim 1, characterized in that: The first support arm (3) further comprises: A first ball screw (34) disposed on the first fixed arm (31) is vertically fixed by a first screw positioning bearing (33); a first movable arm (32) associated with the first ball screw (34), so that the first movable arm (32) can move vertically under the drive of the first ball screw (34); A guide bearing (35) is arranged on the first movable arm (32) and is used to fit the first fixed arm (31).

9. The auxiliary device for transporting a patient according to claim 1, characterized in that: The second support arm (4) further comprises: A second ball screw (44) is horizontally fixedly disposed on the second fixed arm (41) via a second screw positioning bearing (43); A second moving arm (42) is associated with the second ball screw (44), so that the second moving arm (42) can move horizontally under the drive of the second ball screw (44).

10. The auxiliary device for transporting a patient according to claim 9, characterized in that: The second support arm (4) further comprises: a positioning plate (46) fixedly arranged at the end of the second movable arm (42), wherein the width of the positioning plate (46) is greater than the width of the second movable arm (42); A rotating shaft (47) symmetrically arranged on the positioning plate (46); a suspension arm (48) having a suspension node (49) fixedly disposed on the rotation axis (47) so that the suspension arm (48) can rotate relative to the second movable arm (42); The tensioning arm (5) is suspended from the suspension arm (48) via the suspension node (49).

11. The auxiliary device for transporting a patient according to claim 3, characterized in that: The third support arm (6) further comprises: A third fixed arm (61) is horizontally arranged on the bed body fixed column (22) via a slewing bearing (63), and the third fixed arm (61) can rotate horizontally relative to the bed body fixed column (22); A third ball screw (65) is horizontally fixedly disposed on the third fixed arm (61) via a third screw positioning bearing (64); A third movable arm (62) is associated with the third ball screw (65), so that the third movable arm (62) can move horizontally under the drive of the third ball screw (65).

12. The auxiliary device for transporting a patient according to any one of claims 1 to 11, characterized in that: There are at least two tensioning arms (5), and each of the tensioning arms (5) comprises: a vertical connecting rod (52) whose upper end is used to connect to the second movable arm (42); A first connecting member (53) fixedly arranged at one end of the vertical connecting rod (52); a second connecting member (54) slidably disposed on the vertical connecting rod (52); an elastic member (55) sleeved on the vertical connecting rod (52) and located between the first connecting member (53) and the second connecting member (54); Two main arms (56) symmetrically hinged to the two ends of the second connecting member (54); A hook (51) disposed at the end of each main arm (56); A secondary arm (57) having two ends respectively hinged to the main arm (56) and the first connecting member (53).

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