CN215960693U

CN215960693U - Portable transfer device

Info

Publication number: CN215960693U
Application number: CN202122486759.3U
Authority: CN
Inventors: 赵芳华; 刘士博; 张笑; 宋海洋; 王璇; 李明仪
Original assignee: Hebei University of Technology
Current assignee: Hebei University of Technology
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-03-08
Anticipated expiration: 2031-10-15

Abstract

The utility model relates to a portable transfer device, which comprises a chassis, side brackets, a seat assembly and a seat assembly lifting mechanism, wherein the side brackets are arranged on the chassis; the two sides of the lower end of the side support are respectively and rotatably connected with the two sides of one end of the chassis, the seat assembly is arranged in the middle of the side support through a seat assembly lifting mechanism, and the seat assembly can be lifted along the side support; the seat assembly includes left and right seat portions mounted on left and right sides of the side bracket, both of which are rotatable in a horizontal plane and a vertical plane. The device is similar to a wheelchair, and can be used for transferring patients in hospitals or families or pushing the patients to go out; the device is foldable and convenient to carry, and the occupied space is reduced; the folding function of the device is realized through a pure mechanical structure, and the use is more convenient.

Description

Portable transfer device

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a portable transfer device.

Background

The transfer device is mainly used for transferring patients and is an essential device in modern medical instruments. With the aging of the population becoming more and more serious, the demand for the transportation device becomes larger and larger, and the performance requirement becomes higher and higher. The existing transfer device is similar to a hospital stretcher, is large in size and not easy to carry, and is not convenient for pushing a user to go out. Conventional folding wheelchairs are inconvenient for moving a patient from a hospital bed to the wheelchair. Therefore, the portable transfer device is suitable for transferring patients or pushing the patients to go out of a home or a hospital, and is convenient to carry.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a portable transfer device.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a portable transfer device comprises a chassis, side brackets, a seat assembly and a seat assembly lifting mechanism; the side support is characterized in that two sides of the lower end of the side support are respectively and rotatably connected with two sides of one end of the chassis, the seat assembly is arranged in the middle of the side support through the seat assembly lifting mechanism, and the seat assembly can be lifted along the side support; the seat assembly includes left and right seat portions mounted on left and right sides of the side bracket, both of which are rotatable in a horizontal plane and a vertical plane.

The left seat part and the right seat part have the same structure and respectively comprise a T-shaped connecting piece, a seat board, armrests, an armrest connecting rod, an L-shaped connecting rod and a chair back; the T-shaped connecting piece is arranged on a sleeve of the seat component lifting mechanism and can rotate around a connecting point of the T-shaped connecting piece and the sleeve in a horizontal plane; one end of the seat board is hinged with the T-shaped connecting piece, and the seat board can rotate around a connecting point of the T-shaped connecting piece in a vertical plane; the lower end of the handrail connecting rod is hinged with the middle part of the outer side of the seat board, and the middle part of the handrail is hinged with the upper end of the handrail connecting rod; the upper end of the L-shaped connecting rod is hinged with the rear end of the armrest, the lower end of the L-shaped connecting rod is hinged with the rear end of the seat board, and the chair back is clamped on the L-shaped connecting rod; the four parts of the handle connecting rod, the connecting line of the handle connecting rod and the hinge point of the handle and the bending point of the L-shaped connecting rod, the vertical part of the L-shaped connecting rod, the connecting line of the handle connecting rod and the hinge point of the seat board and the connecting line of the L-shaped connecting rod and the hinge point of the seat board form a parallelogram mechanism.

The chair back of the left side seat part and the chair back of the right side seat part are fixed through thread gluing, and the two chair backs form an integral backrest.

The T-shaped connecting piece comprises a circular tube, two end lugs are arranged on the circular tube, and a bottom plate is arranged at the bottoms of the end lugs; one end of the seat board is provided with a protruding part which is rotationally connected with the two end lugs.

The seat component lifting mechanism comprises a rocking handle, a first bevel gear, a second bevel gear, a third bevel gear, a lead screw, a sliding block, a connecting shaft and a sleeve; the two lead screws are respectively vertically arranged on two sides of the side bracket, each lead screw is provided with a sliding block in a sliding way, the upper end of each sliding block is provided with a third bevel gear, and the third bevel gears are sleeved on the lead screws at the same time; the lower end of each sliding block is fixedly connected with a respective sleeve, and the sleeves are sleeved on the side brackets at the same time; the connecting shaft is positioned in the side support, two ends of the connecting shaft are respectively provided with a second bevel gear, and each second bevel gear is meshed with a respective third bevel gear; the rocking handle is installed on the side support, installs the bevel gear of a number one that meshes with one of them second bevel gear on the pivot of rocking handle.

A pedal is arranged on one side of the side bracket for mounting the chassis, and a universal roller and active rolling are arranged at the bottom of the chassis; the base plate is provided with a clamping block.

The side support is U-shaped, and the lower part of the side support is rotatably provided with a support frame which can be matched with the clamping block.

Compared with the prior art, the utility model has the beneficial effects that:

1. the device is similar to a wheelchair, and can be used for transferring patients in hospitals or families or pushing the patients to go out; the device is foldable and convenient to carry, and the occupied space is reduced; the folding function of the device is realized through a pure mechanical structure, and the use is more convenient.

2. The device realizes the lifting of the seat component through the seat component lifting mechanism, and is convenient to connect the device with a bed; the left seat part and the right seat part can rotate towards the left side and the right side of the device, the seat assembly is opened, a transported person can be conveniently moved onto the device from a bed, the situation that the transported person is moved onto the device by physical force of nursing staff is avoided, the burden of the nursing staff is reduced, and the operation is simple; the seat component lifting mechanism is mainly lifted through gear engagement and a lead screw sliding block, and the reliability is high.

3. The seat board of the seat component adopts an inward inclined structure, so that the device can be prevented from slipping off by a transporter in the walking process, and the safety is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention from one perspective;

FIG. 2 is a schematic view of the overall structure of the present invention from another perspective;

FIG. 3 is a schematic structural view of the seat assembly riser mechanism of the present invention;

FIG. 4 is a schematic structural view of a T-shaped connector of the present invention;

FIG. 5 is a partially deployed state view of the left side seat of the present invention;

FIG. 6(a) is a state view of the pivoting chair back of the present invention;

FIG. 6(b) is a view showing the condition of the present invention after the rotation of the chair back is completed;

FIG. 6(c) is a state view of the rotary seat plate of the present invention;

FIG. 6(d) is a view showing a state where the rotation of the seat plate is completed according to the present invention;

FIG. 6(e) is a view showing the entire apparatus of the present invention in a folded state;

in the figure: 1. a chassis; 2. a side bracket; 3. a right side seat portion; 4. a left side seat portion; 5. a seat assembly lifting mechanism;

101. a foot pedal; 102. a universal roller; 103. a driving roller; 104. a clamping block;

201. an upper end cross bar; 202. an upper cross bar; 203. an anti-slip sleeve; 204. a support frame;

301. a T-shaped connector; 302. a seat plate; 303. a handrail; 304. a handrail connecting rod; 305. an L-shaped connecting rod; 306. a chair back; 307. sticking a thread; 301-1, round tube; 301-2, end ears; 301-3, a bottom plate;

501. a rocking handle; 502. a first bevel gear; 503. a second bevel gear; 504. a third bevel gear; 505. a lead screw; 506. a slider; 507. a connecting shaft; 508. a sleeve.

Detailed Description

Specific examples of the present invention are given below, and the specific examples are only used to further illustrate the technical solutions of the present invention in detail, and are not used to limit the scope of the present application.

The utility model relates to a portable transfer device (a device for short, see fig. 1-6), which comprises a chassis 1, side brackets 2, a seat assembly and a seat assembly lifting mechanism 5; the two sides of the lower end of the side support 2 are respectively and rotatably connected with the two sides of one end of the chassis 1 through hinged supports, the seat component is arranged in the middle of the side support 2 through a seat component lifting mechanism 5, and the seat component can lift along the side support 2; the seat assembly comprises a left seat part 4 and a right seat part 3, the left seat part 4 and the right seat part 3 are respectively arranged on the left side and the right side of the side bracket 2, and the left seat part 4 and the right seat part 3 can rotate in a horizontal plane and a vertical plane;

the left seat portion 4 and the right seat portion 3 have the same structure, and the right seat portion 3 is taken as an example for description; the right seat portion 3 includes a T-shaped link 301, a seat plate 302, an armrest 303, an armrest link 304, an L-shaped link 305, and a seat back 306; the T-link 301 is mounted on a sleeve 508 of the seat assembly lifting mechanism 5, the T-link 301 being rotatable in a horizontal plane about a connection point with the sleeve 508 to effect rotation of the right seat part 3 in the horizontal plane; one end of the seat plate 302 is hinged with the T-shaped connecting piece 301, and the seat plate 302 can rotate in a vertical plane around a connecting point with the T-shaped connecting piece 301 so as to realize the rotation of the left seat part 3 in the vertical plane; the lower end of the handrail connecting rod 304 is hinged with the middle part of the outer side of the seat board 302, and the middle part of the handrail 303 is hinged with the upper end of the handrail connecting rod 304; the upper end of the L-shaped connecting rod 305 is hinged with the rear end (the end opposite to the side bracket 2) of the armrest 303, the lower end of the L-shaped connecting rod 305 is hinged with the rear end of the seat plate 302, and the chair back 306 is clamped on the L-shaped connecting rod 305; the connecting line of the hinged point of the armrest connecting rod 304, the armrest connecting rod 304 and the armrest 303 and the bending point of the L-shaped connecting rod 305, the vertical part of the L-shaped connecting rod 305, the connecting line of the hinged point of the armrest connecting rod 304 and the seat plate 302 and the hinged point of the L-shaped connecting rod 305 and the seat plate 302 form a parallelogram mechanism, and the folding of the chair back 306 is realized through the parallelogram mechanism; the chair back of the left seat part 3 and the chair back of the right seat part 4 are fixed through the thread gluing 307, and the two chair backs form an integral backrest, so that a transported person can conveniently lean on and sit on the device;

the seat assembly lifting mechanism 5 comprises a rocking handle 501, a first bevel gear 502, a second bevel gear 503, a third bevel gear 504, a lead screw 505, a sliding block 506, a connecting shaft 507 and a sleeve 508; two lead screws 505 are respectively vertically arranged on two sides of the side bracket 2, a sliding block 506 is arranged on each lead screw 505 in a sliding way, a third bevel gear 504 is arranged at the upper end of each sliding block 506, and the third bevel gear 504 is sleeved on the lead screws 505; the lower end of each sliding block 506 is fixedly connected with a respective sleeve 508, and the sleeves 508 are sleeved on the side bracket 2 at the same time; a connecting shaft 507 is positioned in the upper cross bar 202 of the side bracket 2, two ends of the connecting shaft 507 are respectively provided with a second bevel gear 503, and each second bevel gear 503 is meshed with a respective third bevel gear 504; the rocking handle 501 is arranged on the side bracket 2, a first bevel gear 502 is arranged on a rotating shaft of the rocking handle 501, and the first bevel gear 502 is meshed with one second bevel gear 503; the rocking handle 501 is rotated to enable the first bevel gear 502 to rotate, and the first bevel gear 502 drives the second bevel gear 503 to rotate, so that the connecting shaft 507 rotates; the connecting shaft 507 drives the two third bevel gears 504 to rotate, so that the two sliders 506 slide along the respective lead screws 505, and the sleeve 508 is lifted and lowered along the side bracket 2 under the action of the sliders 506, so as to lift and lower the seat assembly.

A foot pedal 101 is arranged on one side of the chassis 1, which is provided with the side bracket 2, a universal roller 102 and an active rolling 103 are arranged at the bottom of the chassis 1, and the universal roller 102 is used for steering the device.

The side support 2 is U-shaped, the upper end cross rod 201 and the upper end cross rod 202 of the side support 2 are both provided with an anti-skid sleeve 203, and the upper end cross rod 201 is used for being held by a hand of a person pushing the device so as to push the device to walk; the upper crossbar 202 is for grasping by a transporter; the support frame 204 is rotatably installed on the lower portion of the side support 2, when the device is unfolded, the two sides of the support frame 204 can be clamped on the clamping blocks 104 on the two sides of the chassis 1 respectively, the side support 2 is limited through the support frame 202, the side support 2 is prevented from rotating relative to the chassis 1, and the stability of the device is guaranteed.

The T-shaped connecting piece 301 comprises a circular tube 301-1, two end lugs 301-2 are arranged on the circular tube 301-1, and a bottom plate 301-3 is arranged at the bottoms of the end lugs 301-2; one end of the seat plate 302 is provided with a protruding part which is rotatably connected with the two end lugs 301-2 through a pin shaft, when the seat plate 302 rotates to a horizontal position in a vertical plane, the bottom of the protruding part is positioned on the bottom plate 301-3, the seat plate 302 is limited through the bottom plate 301-3, the seat plate 302 is guaranteed not to rotate when rotating to the horizontal position, and the level of the seat plate 302 is guaranteed.

The seat surface of the seat plate 302 is inclined inward at a certain angle, so that a person to be transported is prevented from sitting on the device and sliding down, and the stability during sitting is improved.

The working principle and the working process of the utility model are as follows:

the transported person sits at the bedside and takes the device to be unfolded as an initial state; firstly, rotating a rocking handle 501 to rotate a first bevel gear 502, and driving a second bevel gear 503 to rotate by the first bevel gear 502 to rotate a connecting shaft 507; the connecting shaft 507 drives the two third bevel gears 504 to rotate, so that the two sliding blocks 506 slide along the respective lead screws 505, and the sleeve 508 lifts along the side bracket 2 under the action of the sliding blocks 506 to adjust the height of the seat assembly and adjust the seat plate 302 to be in parallel with the bed;

secondly, the thread gluing 307 on the chair back 306 is opened, and the left seat part 4 and the right seat part 3 are rotated to the left and the right to open the seat assembly; then the left seat part 4 and the right seat part 3 are rotated reversely, the two seat plates 302 are respectively extended below the hip of the transported person, at the moment, the left seat part 4 and the right seat part 3 are folded, and the thread gluing 307 on the back of the chair back 306 is fastened; the transporter can be transported to a designated position by the pushing device;

after the transfer task is completed, the device is folded and retracted, see fig. 6(a) - (e); the chair back 306 is rotated to enable the L-shaped connecting rod 305, the armrests 303 and the armrest connecting rods 304 to rotate, the parallelogram mechanism deforms, and the chair back 306 is folded onto the seat plate 302; then the seat plate 302 is rotated upwards, and simultaneously the support frame 204 is rotated, so that the support frame 204 is disengaged from the fixture block 104 of the chassis 1; and finally, the side bracket 2 is rotated, and the side bracket 2 is flatly placed on the chassis 1, so that the folding of the whole device can be completed, and the carrying of the device is facilitated.

Nothing in this specification is said to apply to the prior art.

Claims

1. A portable transfer device comprises a chassis, side brackets, a seat assembly and a seat assembly lifting mechanism; the side support is characterized in that two sides of the lower end of the side support are respectively and rotatably connected with two sides of one end of the chassis, the seat assembly is arranged in the middle of the side support through the seat assembly lifting mechanism, and the seat assembly can be lifted along the side support; the seat assembly includes left and right seat portions mounted on left and right sides of the side bracket, both of which are rotatable in a horizontal plane and a vertical plane.

2. The portable transporter according to claim 1, wherein the left and right seat portions are identical in construction and each includes a T-shaped connector, a seat pan, an armrest link, an L-shaped link, and a seat back; the T-shaped connecting piece is arranged on a sleeve of the seat component lifting mechanism and can rotate around a connecting point of the T-shaped connecting piece and the sleeve in a horizontal plane; one end of the seat board is hinged with the T-shaped connecting piece, and the seat board can rotate around a connecting point of the T-shaped connecting piece in a vertical plane; the lower end of the handrail connecting rod is hinged with the middle part of the outer side of the seat board, and the middle part of the handrail is hinged with the upper end of the handrail connecting rod; the upper end of the L-shaped connecting rod is hinged with the rear end of the armrest, the lower end of the L-shaped connecting rod is hinged with the rear end of the seat board, and the chair back is clamped on the L-shaped connecting rod; the four parts of the handle connecting rod, the connecting line of the handle connecting rod and the hinge point of the handle and the bending point of the L-shaped connecting rod, the vertical part of the L-shaped connecting rod, the connecting line of the handle connecting rod and the hinge point of the seat board and the connecting line of the L-shaped connecting rod and the hinge point of the seat board form a parallelogram mechanism.

3. The portable transfer device of claim 2, wherein the seat back of the left seat portion and the seat back of the right seat portion are secured by velcro, and the two seat backs form an integral backrest.

4. The portable transfer device of claim 2 or 3, wherein the T-shaped connector comprises a circular tube, two end lugs are arranged on the circular tube, and a bottom plate is arranged at the bottoms of the end lugs; one end of the seat board is provided with a protruding part which is rotationally connected with the two end lugs.

5. The portable transporter according to claim 1, wherein the seat assembly lifting mechanism comprises a rocking handle, a first bevel gear, a second bevel gear, a third bevel gear, a lead screw, a slider, a connecting shaft, and a sleeve; the two lead screws are respectively vertically arranged on two sides of the side bracket, each lead screw is provided with a sliding block in a sliding way, the upper end of each sliding block is provided with a third bevel gear, and the third bevel gears are sleeved on the lead screws at the same time; the lower end of each sliding block is fixedly connected with a respective sleeve, and the sleeves are sleeved on the side brackets at the same time; the connecting shaft is positioned in the side support, two ends of the connecting shaft are respectively provided with a second bevel gear, and each second bevel gear is meshed with a respective third bevel gear; the rocking handle is installed on the side support, installs the bevel gear of a number one that meshes with one of them second bevel gear on the pivot of rocking handle.

6. The portable transfer device of claim 1, wherein a foot pedal is provided on one side of the chassis mounting side bracket, and a universal roller and a positive rolling are provided on the bottom of the chassis; the base plate is provided with a clamping block.

7. The portable transfer device of claim 6, wherein the side bracket is U-shaped, and a support frame capable of being engaged with the fixture block is rotatably mounted on the lower portion of the side bracket.