CN114931476A

CN114931476A - Auxiliary support frame for burn patient

Info

Publication number: CN114931476A
Application number: CN202210620251.4A
Authority: CN
Inventors: 李秀忠; 张金; 吕津津; 张华刚; 范海玉
Original assignee: 971st Navy Hospital Of People 's Liberation Army Of China
Current assignee: 971st Navy Hospital Of People 's Liberation Army Of China
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-08-23
Anticipated expiration: 2042-06-02
Also published as: CN114931476B

Abstract

The invention belongs to the technical field of nursing devices, and particularly relates to an auxiliary support frame for a burn patient. The auxiliary support frame for the burn patient comprises a frame body, a leg support mechanism and a driving mechanism, wherein the leg support mechanism comprises a first support plate, a second support plate, a first push-pull rod and a second push-pull rod, the driving mechanism comprises a first gear, a second gear, a connecting rod assembly and a transmission assembly, and when the auxiliary support frame is used, the driving mechanism can drive the first push-pull rod and the second push-pull rod to ascend through the connecting rod assembly and the transmission assembly, so that the first support plate and the second support plate swing around a hinge shaft, and the ends, far away from the hinge shaft, of the first support plate and the second support plate are close to each other, the height adjustment of the first support plate and the second support plate is realized, and the legs of the patient on the first support plate and the second support plate can be nursed conveniently.

Description

Auxiliary support frame for burn patient

Technical Field

The invention belongs to the technical field of nursing devices, and particularly relates to an auxiliary support frame for a burn patient.

Background

The wound surface of a patient is easy to generate after being burnt, and for the wound surface, regular cleaning, disinfection and medicine application are needed, so that the wound healing is facilitated, and the wound is prevented from being infected and the like.

The supporting device that current burn device of changing dressings used is a fixed knot usually, can't lift patient's shank according to patient's demand, leads to medical personnel to wash, disinfect and nursing such as medicine feeding comparatively inconvenient when operating patient's shank.

Disclosure of Invention

Based on this, it is necessary to provide an auxiliary support frame for a burn patient to solve the problem that the support device in the prior art is inconvenient for medical staff to perform nursing operation on the leg of the patient.

The above purpose is realized by the following technical scheme:

an auxiliary support frame for burn patients comprises a frame body, a leg support mechanism and a driving mechanism, wherein the leg support mechanism and the driving mechanism are installed on the frame body;

the driving mechanism comprises a supporting base, a first gear and a second gear, the first gear and the second gear are mounted on the supporting base, the second gear is meshed with the first gear and revolves around the first gear under the driving of the first gear, the driving mechanism further comprises a connecting rod assembly and a transmission assembly, the connecting rod assembly is in transmission connection with the second gear, the connecting rod assembly comprises two swinging rods and two swinging blocks which are hinged together in a one-to-one correspondence mode, guide holes for guiding and movably penetrating the corresponding swinging rods are formed in the swinging blocks, the swinging rods are driven by the second gear and drive the swinging blocks to rotate, the swinging blocks are in transmission connection with the transmission assembly, and the transmission assembly is used for driving the first push-pull rod and the second push-pull rod to ascend and descend.

Furthermore, the connecting rod assembly further comprises a transmission rod, the second gear is fixed in the middle of the transmission rod, and two ends of the transmission rod are hinged to the two swing rods respectively.

Furthermore, the oscillating block is provided with an oscillating shaft, one end of the oscillating shaft, which deviates from the second gear, is provided with a third gear, the transmission assembly comprises a worm and gear assembly, a lead screw nut assembly and two transmission racks, the transmission racks are driven by the third gear and are in transmission connection with the worm and gear assembly, the lead screw nut assembly comprises a transmission nut and a transmission lead screw which are in transmission fit, the transmission nut is arranged on the worm and gear assembly and is driven by the worm and gear assembly to rotate, and the transmission lead screw is used for driving the corresponding first push-pull rod and the second push-pull rod to lift.

Furthermore, burn patient with auxiliary stay frame still includes control mechanism, the driving rack have on the support base with third gear complex meshing position and with the separation position of third gear separation, control mechanism includes control frame and traction assembly, the control frame is used for promoting the driving rack and removes to the separation position from the meshing position, traction assembly is connected in order to drive the control frame with the control frame transmission, traction assembly is connected with the actuating mechanism transmission.

Further, the traction assembly comprises an installation vertical plate installed on the supporting base, and a first traction gear and a second traction gear which are arranged on the installation vertical plate, the control frame is provided with a rotation shaft sleeve and a traction shaft in a rotating mode, the rotation shaft sleeve is in threaded connection with the traction shaft sleeve, the first traction gear is in transmission connection with the rotation shaft sleeve, the second traction gear is in transmission connection with the traction shaft, and the traction shaft sleeve is provided with a traction position for driving the control frame to push the transmission rack when in the traction position.

Further, control mechanism still includes switches the frame, switches the frame and has the ejector pad, and the ejector pad is located between transmission rack and the control frame, and the length of ejector pad is less than the distance between two transmission racks, switches the frame and can lead the slip in the length direction of ejector pad.

Further, the switching frame is provided with a first switching position, a second switching position and a third switching position, the switching frame is used for pushing the transmission rack for transmitting power to the first push-pull rod when the first switching position is achieved, the switching frame is used for pushing the pushing block to enter a gap between the two transmission racks when the second switching position is achieved, and the switching frame is used for pushing the transmission rack for transmitting power to the second push-pull rod when the third switching position is achieved.

Furthermore, a supporting table is arranged on the supporting base, the sliding groove is formed in one face, back to the first gear, of the supporting table, a clamping groove extending in the vertical direction is formed in one face, facing the first gear, of the supporting table, the connecting rod assembly further comprises a connecting rod used for connecting the two swinging blocks and hinged to the two swinging blocks, a center push rod is fixed in the middle of the connecting rod, and one end, far away from the connecting rod, of the supporting shaft is supported in the clamping groove.

Furthermore, a through hole for the transmission screw to pass through is formed in the frame body, a horizontal baffle plate is fixed at the lower end of the transmission screw, a sliding groove is formed in the horizontal baffle plate, and guide blocks which are used for being in guiding sliding fit with the sliding groove in the horizontal direction are arranged on the first push-pull rod and the second push-pull rod.

Furthermore, guide pins are arranged on the first push-pull rod and the second push-pull rod, a track groove plate is further fixed on the bottom surface of the frame body, and a track which is superposed with the motion track of the guide pins to guide the guide pins to slide is arranged on the track groove plate.

The invention has the beneficial effects that: when the auxiliary support frame for the burn patient is used, the patient is placed on a frame body, the leg of the patient is placed on the first support plate and the second support plate, the driving mechanism is started, the second gear revolves around the first gear and drives the swinging rod of the connecting rod component to swing under the driving of the first gear, the swinging block is provided with a guide hole for guiding the corresponding swinging rod to movably penetrate, the swinging rod drives the swinging block to rotate when swinging, the swinging block drives the first push-pull rod and the second push-pull rod to ascend through the transmission component, the first support plate and the second support plate are hinged through the hinge shaft and are constrained in the chute in the vertical direction, so under the action of the first push-pull rod and the second push-pull rod, the first support plate and the second support plate ascend in the chute around the hinge shaft, and one ends of the first support plate and the second support plate, which are far away from the hinge shaft, are close to each other, realized the regulation to the height of first backup pad and second backup pad, the convenience nurses patient's shank in first backup pad and the second backup pad.

Drawings

FIG. 1 is a schematic structural view of an auxiliary support frame for a burn patient according to an embodiment 1 of the present invention;

FIG. 2 is a front view of the auxiliary support frame of FIG. 1 for the burn patient;

FIG. 3 is a top view of the auxiliary support frame of FIG. 1 for the burn patient;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

fig. 5 is a partial enlarged view at B in fig. 4;

FIG. 6 is a schematic structural view of the auxiliary support frame for the burn patient in FIG. 1 with the frame body and the foot rest hidden;

FIG. 7 is a schematic diagram of another perspective of the structure of FIG. 6;

FIG. 8 is a schematic illustration of the structure of FIG. 6 with portions of the structure hidden;

FIG. 9 is a schematic illustration of the support base and support table of FIG. 6 shown removed;

FIG. 10 is a schematic diagram of another perspective of the structure of FIG. 9;

FIG. 11 is a schematic view of the remaining structure of FIG. 10 with portions of the structure hidden from view, partially cut away;

FIG. 12 is a schematic illustration of FIG. 7 with portions of the structure hidden;

FIG. 13 is a schematic view showing a partial structure of the auxiliary support frame for the burn patient in FIG. 1 when the horizontal baffle and the frame body are stopped;

FIG. 14 is a final state diagram of the auxiliary supporting frame for the burn patient in FIG. 1 when the switching frame is in the first switching position;

FIG. 15 is a final state view of the auxiliary support frame for the burn patient in FIG. 1 with the switching frame in the second switching position;

FIG. 16 is a final state view of the auxiliary support frame for the burn patient in FIG. 1 with the switching frame in the third switching position;

wherein: 100. a frame body; 110. a foot support; 200. a leg support mechanism; 201. a first support plate; 202. a first push-pull rod; 203. a second support plate; 204. a second push-pull rod; 205. hinging a shaft; 206. a guide slider; 210. a track groove plate; 211. a track; 300. a drive mechanism; 301. a support base; 302. a first gear; 303. a second gear; 304. mounting a plate; 305. a motor; 310. a support table; 311. a chute; 313. a center push rod; 315. a central slider; 316. a spring pin; 317. a card slot; 320. a connecting rod assembly; 321. a transmission rod; 323. a connecting rod; 325. a swing lever; 326. a second through hole; 327. a swing block; 328. a swinging sleeve; 329. a first through hole; 330. a swing shaft; 332. a spring stub shaft; 334. a clamping block; 340. a transmission assembly; 342. a drive rack; 344. a worm gear; 345. a worm; 346. a drive screw; 348. a horizontal baffle; 400. a control mechanism; 410. a control frame; 412. rotating the shaft sleeve; 414. a traction shaft; 420. a traction assembly; 421. installing a vertical plate; 422. a first traction gear; 423. a second traction gear; 424. a first drive belt; 425. a second belt; 430. a switching frame; 432. pushing the pushing block; 434. a switch lever; 436. and (4) switching the handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The ordinal numbers used herein for the components, such as "first," "second," etc., are used merely to distinguish between the objects described, and do not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The auxiliary support frame for burn patients of the present invention will be described with reference to the drawings and the detailed description.

Example 1 of the auxiliary support frame for burn patients of the present invention:

as shown in fig. 1 and 2, the auxiliary support frame for a burn patient of the present embodiment includes a frame body 100, a leg supporting mechanism 200 and a driving mechanism 300 mounted on the frame body 100, and further includes a control mechanism 400. The frame body 100 is a hospital bed, which can be used for a patient to lie down, and has four legs, and in order to support the feet of the patient, the frame body 100 is provided with a foot support 110. Two sets of leg supporting mechanisms 200 and driving mechanisms 300 are symmetrically installed at both sides of the frame body 100, respectively, to support both legs of the patient, correspondingly.

As shown in fig. 1, 3, 4, 5 and 6, the leg supporting mechanism 200 includes a first supporting plate 201, a second supporting plate 203, a first push-pull rod 202 and a second push-pull rod 204, the frame body 100 is provided with a through slot extending along the length direction, the first push-pull rod 202 and the second push-pull rod 204 penetrate through the through slot, and the upper ends of the two are respectively hinged to the first supporting plate 201 and the second supporting plate 203 above the frame body 100. The first supporting plate 201 and the second supporting plate 203 are both of a length-variable telescopic structure, the ends of the first supporting plate 201 and the second supporting plate 203 are both clamped with a guiding slide block 206, and the guiding slide block 206 is slidably arranged on the frame body 100 in a guiding manner. The driving mechanism 300 includes a supporting base 301 installed on the side of the frame body 100, a supporting platform 310 is installed on the supporting base 301, a sliding groove 311 extending in the vertical direction is formed in one surface of the supporting platform 310 facing the first supporting plate 201, the end portions of the first supporting plate 201 and the second supporting plate 203 are hinged together through a hinge shaft 205, one end of the hinge shaft 205 facing the supporting platform 310 is constrained in the sliding groove 311 and can only slide in the sliding groove 311 in the vertical direction.

As shown in fig. 1, 8 and 9, the driving mechanism 300 further includes a first gear 302 and a second gear 303, a mounting plate 304 is provided on the support base 301, a motor 305 is mounted on the mounting plate 304, the first gear 302 is mounted on an output shaft of the motor 305, and the second gear 303 is engaged with the first gear 302 and revolves around the first gear 302 under the driving of the first gear 302. The driving mechanism 300 further comprises a connecting rod assembly 320 and a transmission assembly 340, the connecting rod assembly 320 comprises a transmission rod 321, a connecting rod 323, two swing rods 325 and two swing blocks 327, wherein the second gear 303 is fixed in the middle of the transmission rod 321, so that the second gear 303 can drive the transmission rod 321 to swing when rotating, two ends of the transmission rod 321 are respectively hinged to the two swing rods 325, the swing blocks 327 have swing sleeves 328, swing shafts 330 penetrate through the swing sleeves 328, the swing sleeves 328 penetrate through the penetrating holes in the connecting rod 323 to be hinged to the end portions of the connecting rod 323, and guide holes for guiding the corresponding swing rods 325 to movably penetrate are formed in the swing blocks 327.

As shown in fig. 6, 8 and 9, a central push rod 313 is fixed in the middle of the connecting rod 323, a central slider 315 is disposed at an end of the central push rod 313, a slot 317 extending in the vertical direction is disposed on a surface of the support platform 310 facing the mounting plate 304, a plurality of continuously distributed arc-shaped notches are disposed on both side walls of the slot 317, the central slider 315 is inserted into the slot 317, spring pins 316 are disposed on both side surfaces of the central slider 315, end portions of the spring pins 316 are inserted into the slot 317, when the connecting rod 323 receives a large vertical pushing force, the spring pins 316 are pushed into the central slider 315 by the arc-shaped surfaces of the arc-shaped notches, and the connecting rod 323 and the central push rod 313 move up synchronously until the spring pins 316 enter the next arc-shaped notch and extend out. When the first gear 302 rotates, the second gear 303 revolves around the first gear 302 and drives the transmission rod 321 to swing, the transmission rod 321 swings and drives the swinging rod 325 to swing, and the swinging block 327 is hinged to the central push rod 313 and has a guide hole, so that the swinging rod 325 slides in the guide hole of the swinging block 327 and drives the swinging block 327 to swing.

As shown in fig. 9 and 11, a first through hole 329 is formed at the center of a swing sleeve 328 of the swing block 327, a second through hole 326 is formed in the swing lever 325, and when the transmission lever 321 moves to a position perpendicular to the swing lever 325, the first through hole 329 and the second through hole 326 communicate with each other.

As shown in fig. 9 and 11, a spring stub shaft 332 is movably installed at one end of the swing shaft 330 in a guiding manner, the spring stub shaft 332 includes a large-diameter section and a small-diameter section, a pushing spring is sleeved on the small-diameter section, the pushing spring can push the spring stub shaft 332 into the first through hole 329 and the second through hole 326 when releasing the elastic force, so as to connect the swing block 327 and the swing rod 325, the swing rod 325 cannot slide in the guiding hole of the swing block 327 in a guiding manner, and the transmission rod 321 pushes the connection rod 323 to move upwards through the swing block 327 during movement. The outer peripheral surface of the swing shaft 330 is provided with a sunk groove, a pressure spring and a fixture block 334 positioned above the pressure spring are arranged in the sunk groove, the fixture block 334 is pressed into the sunk groove when the radial pressure exceeds a set value, and the swing shaft 330 and the swing sleeve 328 rotate relatively. The end of the swinging sleeve 328 is provided with a stopping notch, the side wall of the stopping notch is matched with the block 334 in a stopping manner, and when the swinging block 327 rotates, the swinging sleeve 328 can drive the swinging shaft 330 to rotate by matching the side wall of the stopping notch with the block 334 in a stopping manner. In addition, the swing shaft 330 is in threaded engagement with the swing sleeve 328, when the swing sleeve 328 and the swing shaft 330 rotate relatively, the swing shaft 330 moves into the swing sleeve 328 to press the pushing spring on the spring stud 332, and when the first through hole 329 and the second through hole 326 are overlapped, the pushing spring pushes the spring stud 332 into the first through hole 329 and the second through hole 326, so as to connect the swing block 327 and the swing rod 325.

As shown in fig. 5, 6 and 7, a third gear is fixed at one end of the swing shaft 330 extending from the swing sleeve 328, the transmission assembly 340 includes a worm and gear assembly, a lead screw nut assembly and two transmission racks 342, a through slot hole for the transmission rack 342 to pass through is formed in the support base 301, and the transmission racks 342 can slide on the support base 301 along the axial direction of the first gear 302, so that the transmission racks 342 have an engaging position and a separating position, the third gear is engaged with the transmission racks 342 at the engaging position, and the third gear is separated from the transmission racks 342 at the separating position. The worm and gear assembly is hidden in the rack body 100 and comprises a worm wheel 344 and a worm 345 which are in transmission fit, one end of the worm 345 is provided with a fourth gear meshed with a transmission rack 342, the fourth gear drives the worm 345 to rotate so as to drive the worm wheel 344 to rotate, the lead screw nut assembly comprises a transmission nut and a transmission lead screw 346 which are in transmission fit, the transmission nut is arranged in the middle of the worm wheel 344 and driven by the worm wheel 344 to rotate, and the transmission nut is matched with the transmission lead screw 346 so as to drive the transmission lead screw 346 to lift. The frame body 100 is provided with a through hole for the transmission screw 346 to pass through, the lower end of the transmission screw 346 is fixed with a horizontal baffle 348, the horizontal baffle 348 is provided with a sliding groove, and the first push-pull rod 202 and the second push-pull rod 204 are respectively provided with a guide block which is used for guiding and sliding matching with the sliding groove in the horizontal direction.

As shown in fig. 1, 5 and 6, the control mechanism 400 includes a control frame 410, a traction assembly 420 and a switching frame 430, a groove is disposed on the upper end surface of the support base 301, the control frame 410 is a U-shaped frame with a bottom portion disposed in the groove, and the control frame 410 moves in a direction close to the transmission rack 342 to push the transmission rack 342, so that the transmission rack 342 is separated from the third gear, that is, the transmission rack 342 moves from an engaging position to a separating position.

As shown in fig. 5 and 10, a mounting upright plate 421 is disposed on the supporting base 301, the traction assembly 420 includes a first traction gear 422 and a second traction gear 423 that are sequentially disposed on the mounting upright plate 421 from top to bottom, wherein an annular gear sleeve that is meshed with the first traction gear 422 is disposed on an outer circumferential surface of the swing sleeve 328, the second traction gear 423 is meshed with the transmission rack 342, the swing sleeve 328 can drive the first traction gear 422 to rotate when rotating, a rotating shaft sleeve 412 is rotatably disposed on the control frame 410, the first traction gear 422 is in transmission connection with the rotating shaft sleeve 412 through a first transmission belt 424, a traction shaft 414 is threadedly mounted on an end of the rotating shaft sleeve 412 that is far away from the control frame 410, the traction shaft 414 is rotatably fixed on the mounting upright plate 421 through a bearing and cannot move axially, and the traction shaft 414 is in transmission connection with the second traction gear 423 through a second transmission belt 425. The diameter of the first traction wheel is larger than that of the second front traction wheel, so that the output speeds of the first traction wheel and the second traction wheel are the same, and when the transmission rack 342 is located at the meshing position, the rotating shaft sleeve 412 and the traction shaft 414 rotate at the same speed, and the two do not rotate relatively. When the transmission rack 342 is located at the separation position, the pulling shaft 414 is stationary, the rotating shaft sleeve 412 rotates relative to the pulling shaft 414 under the traction of the first belt pulley, and since the rotating shaft sleeve 412 and the pulling shaft 414 are connected through the screw thread, the rotating shaft sleeve 412 moves towards the direction close to the pulling shaft 414 to drive the control frame 410 to move towards the direction close to the transmission rack 342.

As shown in fig. 7, 9 and 10, the switching frame 430 is a rectangular frame disposed on the supporting base 301, a pushing block 432 is fixed on one side of the switching frame 430 close to the driving racks 342, and the length of the pushing block 432 is smaller than the distance between the two driving racks 342, so that the two driving racks 342 cannot be pushed simultaneously. The inside and the outside of one side of the switching frame 430 facing away from the transmission rack 342 are respectively fixed with a switching lever 434 and a switching handle 436, and the side surface of the supporting base 301 is provided with three communicated switching holes for insertion of the switching lever 434, so that the switching lever 434 has a first switching position, a second switching position and a third switching position. When the switching lever 434 is in the first switching position, the pushing block 432 of the switching frame 430 can only push the transmission rack 342 for transmitting power to the first push-pull rod 202, when the switching lever 434 is in the second switching position, the pushing block 432 of the switching frame 430 cannot transmit the rack 342, and when the switching lever 434 is in the third switching position, the pushing block 432 of the switching frame 430 can only push the transmission rack 342 for transmitting power to the second push-pull rod.

As shown in fig. 5 and 12, the first push-pull rod 202 and the second push-pull rod 204 are provided with guide pins, the bottom surface of the frame body 100 is further fixed with a rail groove plate 210, and the rail groove plate 210 is provided with a rail 211 coinciding with a movement track of the guide pins, so that the guide pins can slide in the rail 211 in a guiding manner.

The use process of the auxiliary support frame for the burn patient in the embodiment is as follows:

first, before use, it is determined at which position of the leg of the patient needs to be emptied, and if the thigh of the patient needs to be emptied, the switching lever 434 of the switching frame 430 is moved to the first switching position, and if the calf of the patient needs to be emptied, the switching lever 434 of the switching frame 430 is moved to the third switching position, and if both the thigh and the calf of the patient need to be emptied, the switching lever 434 of the switching frame 430 is moved to the second switching position.

After the switching frame 430 is switched to the right position, the starting motor 305 drives the first gear 302 to rotate counterclockwise, the second gear 303 revolves counterclockwise around the first gear 302 and drives the transmission rod 321 to swing counterclockwise, the transmission rod 321 drives the swinging rod 325 to slide in the guide hole of the swinging block 327, so that the swinging block 327 rotates counterclockwise, when the swinging block 327 rotates, the swinging sleeve 328 pushes the fixture block 334 on the swinging shaft 330 to drive the swinging shaft 330 to rotate counterclockwise, and the third gear on the swinging shaft 330 is meshed with the transmission rack 342 to drive the transmission rack 342 to move down.

As shown in fig. 5, 7, 10 and 13, the driving rack 342 moves downward, the fourth gear on the worm 345 rotates, and the worm gear assembly rotates, the driving nut in the worm wheel 344 rotates synchronously, and the driving screw 346 drives the horizontal baffle 348 to ascend, the horizontal baffle 348 drives the first push-pull rod 202 and the second push-pull rod 204 to ascend through the sliding slot, because the hinge shaft 205 of the first support plate 201 and the second support plate 203 is constrained in the sliding slot 311, the hinge shaft 205 ascends in the sliding slot 311, and at the same time, under the guidance of the rail 211 of the rail slot plate 210, the first push-pull rod 202 and the second push-pull rod 204 approach each other until the horizontal baffle 348 moves to the limit position and is stopped by the lower bottom surface of the frame body 100, and cannot ascend further. In the process, as the transmission rack 342 and the swinging sleeve 328 both move, the first traction gear 422 and the second traction gear 423 on the mounting upright plate 421 output the same rotating speed, and the rotating shaft sleeve 412 and the traction shaft 414 output the same rotating speed, so that the two do not rotate relatively.

Since the motor 305 is still driving the first gear 302, but the horizontal baffle 348 cannot rise further, the swing sleeve 328 of the swing block 327 will press the latch 334 on the swing shaft 330 and press it into the sinking groove, and the swing sleeve 328 and the swing shaft 330 will rotate relatively, and since the swing shaft 330 is in threaded engagement with the swing sleeve 328, the swing shaft 330 will move towards the swing sleeve 328, so that the pushing spring on the spring stub 332 is compressed. When the transmission lever 321 moves to a position perpendicular to the swing lever 325, the first through hole 329 of the swing block 327 and the second through hole 326 of the swing lever 325 communicate, and the urging spring pressure is released to push the spring stub shaft 332 into the first through hole 329 and the second through hole 326, thereby connecting the swing block 327 and the swing lever 325.

When the motor 305 continues to rotate, the second gear 303 drives the transmission rod 321 to ascend and swing, the swing block 327 and the swing sleeve 328 thereof also rotate and push the connection rod 323 to move vertically upward, because the rack cannot be driven by the swing shaft 330 to descend at this time, the rotation shaft sleeve 412 and the traction shaft 414 cannot maintain the same rotation speed, the rotation shaft sleeve 412 and the traction shaft rotate relatively, the rotation shaft sleeve 412 moves toward the traction shaft 414 to drive the U-shaped frame to move toward the transmission rack 342, and the U-shaped frame pushes the switching frame 430 to move toward the transmission rack 342.

When the switch lever 434 is in the first switching position, the transmission rack 342 transmitting power to the first push-pull rod 202 is pushed to the disengaged position, when the switch lever 434 is in the second switching position, neither of the transmission racks 342 is pushed, and when the switch lever 434 is in the third switching position, the transmission rack 342 transmitting power to the second push-pull rod 204 is pushed to the disengaged position.

At this time, the third gear on the swing shaft 330 is still engaged with the transmission rack 342 that is not pushed to the separated position, so that although the swing shaft 330 cannot rotate, the swing block 327 drives the swing shaft 330 to move upward and also drives the corresponding transmission rack 342 to move upward. The upward movement of the driving rack 342 drives the driving nut to rotate in the opposite direction through the worm and gear assembly, so that the driving screw 346 drives the corresponding horizontal barrier 348 to descend, the horizontal barrier 348 descends to drive the corresponding first and/or second push-pull rod 204 to descend, the corresponding first and/or second support plate 203 swings, and when the driving screw descends to a desired position, the motor 305 is turned off.

When the switching lever 434 is located at the first switching position, the final states of the first supporting plate 201 and the second supporting plate 203 are shown in fig. 14, and the thighs of the patient are empty, so that the thighs can be conveniently nursed; when the switching lever 434 is located at the second switching position, the final states of the first supporting plate 201 and the second supporting plate 203 are shown in fig. 15, in which the thighs and the calves of the patient are empty, which is convenient for nursing the thighs and the calves at the same time; when the switching lever 434 is located at the third switching position, the final states of the first supporting plate 201 and the second supporting plate 203 are shown in fig. 16, in which the lower legs of the patient are empty, and the nursing of the lower legs is facilitated.

Example 2 of the auxiliary support frame for burn patients of the present invention:

two communicated switching holes for inserting the switching rods are formed in the side face of the supporting base, and the switching rods of the front frame and the rear frame only have a first switching position and a second switching position.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. An auxiliary support frame for burn patients is characterized by comprising a frame body, a leg support mechanism and a driving mechanism, wherein the leg support mechanism and the driving mechanism are installed on the frame body;

the driving mechanism comprises a supporting base, a first gear and a second gear, the first gear and the second gear are installed on the supporting base, the second gear is meshed with the first gear and revolves around the first gear under the driving of the first gear, the driving mechanism further comprises a connecting rod assembly and a transmission assembly, the connecting rod assembly is in transmission connection with the second gear, the connecting rod assembly comprises two swinging rods and two swinging blocks which are hinged together in a one-to-one correspondence mode, guide holes for guiding and movably penetrating the corresponding swinging rods are formed in the swinging blocks, the swinging rods are driven by the second gear and drive the swinging blocks to rotate, the swinging blocks are in transmission connection with the transmission assembly, and the transmission assembly is used for driving the first push-pull rod and the second push-pull rod to ascend and descend.

2. The auxiliary support frame for the burn patient according to claim 1, wherein the link assembly further comprises a transmission rod, the second gear is fixed in the middle of the transmission rod, and two ends of the transmission rod are respectively hinged to the two swing rods.

3. The auxiliary support frame for the burn patient according to claim 2, wherein the swing block is provided with a swing shaft, one end of the swing shaft, which is far away from the second gear, is provided with a third gear, the transmission assembly comprises a worm and gear assembly, a lead screw nut assembly and two transmission racks, the transmission racks are used for being driven by the third gear and are in transmission connection with the worm and gear assembly, the lead screw nut assembly comprises a transmission nut and a transmission lead screw which are in transmission fit, the transmission nut is arranged on the turbine assembly and is driven by the worm and gear assembly to rotate, and the transmission lead screw is used for driving the corresponding first push-pull rod and the second push-pull rod to lift.

4. The auxiliary support frame for the burn patient according to claim 3, wherein the auxiliary support frame for the burn patient further comprises a control mechanism, the transmission rack is provided with an engagement position matched with the third gear and a separation position separated from the third gear on the support base, the control mechanism comprises a control frame and a traction assembly, the control frame is used for pushing the transmission rack to move from the engagement position to the separation position, the traction assembly is in transmission connection with the control frame to drive the control frame, and the traction assembly is in transmission connection with the driving mechanism.

5. The auxiliary support frame for the burn patient according to claim 4, wherein the traction assembly comprises a mounting vertical plate mounted on the support base and a first traction gear and a second traction gear which are arranged on the mounting vertical plate, the control frame is rotatably provided with a rotating shaft sleeve and a traction shaft which are in threaded connection, the first traction gear is in transmission connection with the rotating shaft sleeve, the second traction gear is in transmission connection with the traction shaft, and the traction shaft sleeve is provided with a traction position for driving the control frame to push the transmission rack in the traction position.

6. The auxiliary support frame for the burn patient according to claim 4 or 5, wherein the control mechanism further comprises a switching frame, the switching frame is provided with an ejector block, the ejector block is located between the transmission rack and the control frame, the length of the ejector block is smaller than the distance between the two transmission racks, and the switching frame can slide in a guiding mode in the length direction of the ejector block.

7. The auxiliary support frame for the burn patient according to claim 6, wherein the switching frame has a first switching position for pushing the driving rack for transmitting power to the first push-pull rod, a second switching position for pushing the pushing block into a gap between the two driving racks, and a third switching position for pushing the driving rack for transmitting power to the second push-pull rod.

8. The auxiliary support frame for the burn patient according to any one of claims 1-5, wherein a support base is provided with a support platform, the sliding groove is arranged on one surface of the support platform, which faces away from the first gear, a clamping groove extending in a vertical direction is arranged on one surface of the support platform, which faces towards the first gear, the connecting rod assembly further comprises a connecting rod for connecting the two swinging blocks and hinged with the two swinging blocks, a central push rod is fixed in the middle of the connecting rod, and one end of the supporting rod, which is far away from the connecting rod, is supported in the clamping groove.

9. The auxiliary support frame for the burn patient according to any one of claims 3 to 5, wherein the frame body is provided with a through hole for the transmission screw to pass through, the lower end of the transmission screw is fixed with a horizontal baffle plate, the horizontal baffle plate is provided with a sliding groove, and the first push-pull rod and the second push-pull rod are respectively provided with a guide block which is used for guiding and sliding matching with the sliding groove in the horizontal direction.

10. The auxiliary support frame for the burn patient according to any one of claims 1 to 5, wherein the first push-pull rod and the second push-pull rod are provided with guide pins, the bottom surface of the frame body is further fixed with a track groove plate, and the track groove plate is provided with a track which is overlapped with the motion track of the guide pins for the guide pins to slide in a guiding way.