CN114931476B - Auxiliary support frame for burn patient - Google Patents

Abstract

The invention belongs to the technical field of nursing devices, and particularly relates to an auxiliary supporting frame for burn patients. 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, 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, the height of the first support plate and the second support plate is adjusted, and nursing is convenient for the legs of the patient on the first support plate and the second support plate.

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 supporting frame for burn patients.

Background

The wound surface is easy to generate after the patient is burnt, and the wound surface needs to be cleaned, disinfected and dosed regularly so as to be beneficial to the healing of the wound and prevent the infection of the wound.

The supporting device used by the existing burn dressing change device is usually a fixed structure, and can not lift the legs of a patient according to the needs of the patient, so that nursing operations such as cleaning, disinfecting, medicine feeding and the like are inconvenient for medical staff.

Disclosure of Invention

Based on the above, it is necessary to provide an auxiliary support frame for burn patients to solve the problem that the support device in the prior art is inconvenient for medical staff to care the legs of the patients.

The above purpose is achieved by the following technical scheme:

the auxiliary support frame for the burn patient comprises a frame body, and a leg supporting mechanism and a driving mechanism which are arranged on the frame body, wherein the leg supporting mechanism comprises a first support plate, a second support plate, a first push-pull rod and a second push-pull rod, the first support plate and the second support plate are hinged through a hinge shaft, the end part of the hinge shaft is restrained in a chute extending along the vertical direction, and the first push-pull rod and the second push-pull rod are correspondingly hinged on the first support plate and the second support plate respectively;

the driving mechanism comprises a supporting base, a first gear and a second gear, wherein the first gear and the second gear are arranged on the supporting base, the second gear is meshed with the first gear and revolves around the first gear under the drive of the first gear, the driving mechanism further comprises a connecting rod assembly and a transmission assembly, the connecting rod assembly is connected with the second gear in a transmission mode, 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 the corresponding swinging rods to movably penetrate 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 connected with the transmission assembly in a transmission mode, and the transmission assembly is used for driving the first push-pull rod and the second push-pull rod to lift.

Further, 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 with the two swing rods respectively.

Further, install the oscillating axle on the oscillating piece, the one end of oscillating axle that deviates from the second gear is provided with the third gear, drive assembly includes worm gear assembly, lead screw nut subassembly and two drive racks, drive rack is used for being driven by the third gear and is connected with worm gear assembly transmission, lead screw nut subassembly includes transmission complex drive nut and drive lead screw, drive nut sets up on turbine assembly and is driven by worm gear assembly and rotates, drive lead screw is used for driving corresponding first push-and-pull rod and second push-and-pull rod and goes up and down.

Further, the auxiliary supporting frame for burn patients further comprises a control mechanism, the transmission rack is provided with a meshing position matched with the third gear and a separating position separated from the third gear on the supporting 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 meshing position to the separating 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.

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

Further, the control mechanism further comprises a switching frame, the switching frame is provided with a pushing block, the pushing block is located between the transmission racks and the control frame, the length of the pushing block is smaller than the distance between the two transmission racks, and the switching frame can conduct guiding sliding in the length direction of the pushing block.

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

Further, be provided with the brace table on the support base, the spout setting is on the one side of brace table back to first gear, is equipped with the draw-in groove that extends along vertical direction on the one side of brace table towards first gear, and link assembly is still including being used for connecting two swing pieces and with two swing piece articulated connecting rods, and the middle part of connecting rod is fixed with central push rod, and the one end of keeping away from the connecting rod of back shaft is supported in the draw-in groove.

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

Further, 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 overlapped with the movement track of the guide pins and used for guiding and sliding of the guide pins is arranged on the track groove plate.

The beneficial effects of the invention are as follows: when the auxiliary support frame for the burn patient is used, the patient is firstly placed on the frame body, the legs of the patient are 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 assembly to swing under the driving of the first gear, and the swinging block is provided with the guide hole for guiding the corresponding swinging rod to movably pass through, so that the swinging block is driven to rotate during swinging, and the first support plate and the second support plate are driven to ascend through the transmission assembly.

Drawings

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

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

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

FIG. 4 is a cross-sectional view taken along A-A in FIG. 3;

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

FIG. 6 is a schematic view of the auxiliary support frame for burn patients shown in FIG. 1 after the auxiliary support frame body and the foot rest are hidden;

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

FIG. 8 is a schematic view of the structure of FIG. 6 with portions broken away;

FIG. 9 is a schematic view of the support base and support table of FIG. 6 with the support base and support table removed;

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

FIG. 11 is a schematic illustration of the remaining structure partially cut away after the partial structure of FIG. 10 has been removed;

FIG. 12 is a schematic view of the structure of FIG. 7 with portions broken away;

FIG. 13 is a schematic view showing a part of the construction of the auxiliary support frame for burn patients in FIG. 1 when the horizontal barrier is stopped with the frame body;

fig. 14 is a final state view of the auxiliary support frame for burn patients of fig. 1 when the switching frame is positioned at the first switching position;

FIG. 15 is a final state view of the auxiliary support frame for burn patients of FIG. 1 when the switch frame is in the second switch position;

FIG. 16 is a final state view of the auxiliary support frame for burn patients of FIG. 1 when the switch frame is in the third switch position;

wherein: 100. a frame body; 110. a foot rest; 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. a hinge shaft; 206. a guide slider; 210. a track groove plate; 211. a track; 300. a driving mechanism; 301. a support base; 302. a first gear; 303. a second gear; 304. a mounting 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 clamping groove; 320. a connecting rod assembly; 321. a transmission rod; 323. a connecting rod; 325. a swinging rod; 326. a second through hole; 327. a swinging 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 wheel; 345. a worm; 346. a transmission screw; 348. a horizontal baffle; 400. a control mechanism; 410. a control rack; 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 belt; 425. a second belt; 430. a switching frame; 432. pushing blocks; 434. a switching lever; 436. a switch handle.

Detailed Description

The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

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

Example 1 of auxiliary supporting frame for burn patient of the present invention:

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

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, a through long groove extending along a length direction is provided on the frame 100, the first push-pull rod 202 and the second push-pull rod 204 pass through the through long groove, and upper ends of the first push-pull rod 202 and the second push-pull rod 204 are respectively hinged on the first supporting plate 201 and the second supporting plate 203 above the frame 100 correspondingly. The first supporting plate 201 and the second supporting plate 203 are telescopic structures with variable lengths, the tail ends of the first supporting plate 201 and the second supporting plate 203 are clamped with guide sliding blocks 206, and the guide sliding blocks 206 are arranged on the frame body 100 in a guiding sliding mode. The driving mechanism 300 includes a support base 301 mounted on a side of the frame body 100, a support table 310 is mounted on the support base 301, a chute 311 extending in a vertical direction is provided on a surface of the support table 310 facing the first support plate 201, ends of the first support plate 201 and the second support plate 203 are hinged together by a hinge shaft 205, and an end of the hinge shaft 205 facing the support table 310 is restrained in the chute 311 and can only slide in the chute 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 meshed 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 swinging rods 325 and two swinging blocks 327, wherein the second gear 303 is fixed in the middle of the transmission rod 321, therefore, the second gear 303 can drive the transmission rod 321 to swing when rotating, two ends of the transmission rod 321 are respectively hinged with the two swinging rods 325, the swinging blocks 327 are provided with swinging sleeves 328, swinging shafts 330 are arranged in the swinging sleeves 328 in a penetrating mode, the swinging sleeves 328 penetrate through penetrating holes in the connecting rod 323 to be hinged with the end portions of the connecting rod 323, and guide holes for guiding the corresponding swinging rods 325 to movably penetrate through are formed in the swinging 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 slide block 315 is arranged at the end of the central push rod 313, a clamping groove 317 extending along the vertical direction is arranged on one surface of the supporting table 310 facing the mounting plate 304, a plurality of arc-shaped notches are arranged on two side walls of the clamping groove 317, the central slide block 315 is inserted into the clamping groove 317, spring pins 316 are arranged on two side surfaces of the central slide block 315, the end of each spring pin 316 is clamped into the corresponding clamping groove 317, when the connecting rod 323 receives a large thrust force in the vertical direction, each spring pin 316 is extruded into the corresponding central slide block 315 by the arc surface of each arc-shaped notch, and the connecting rod 323 and the central push rod 313 synchronously move upwards until each spring pin 316 enters the next arc-shaped notch and extends 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 swing rod 325 to swing, and the swing block 327 is hinged to the center push rod 313 and has a guide hole, so that the swing rod 325 slides in the guide hole of the swing block 327 in a guiding manner and drives the swing block 327 to swing.

As shown in fig. 9 and 11, a first through hole 329 is provided at the center of the swing sleeve 328 of the swing block 327, and a second through hole 326 is provided on the swing rod 325, and when the transmission rod 321 moves to a position perpendicular to the swing rod 325, the first through hole 329 and the second through hole 326 are communicated.

As shown in fig. 9 and 11, a spring short shaft 332 is movably mounted at one end of the swinging shaft 330 in a guiding manner, the spring short shaft 332 comprises a large-diameter section and a small-diameter section, a pushing spring is sleeved on the small-diameter section, and the pushing spring can push the spring short shaft 332 to enter the first through hole 329 and the second through hole 326 when releasing elasticity, so that the swinging block 327 and the swinging rod 325 are connected, the swinging rod 325 cannot slide in a guiding hole of the swinging block 327 in a guiding manner, and the transmission rod 321 pushes the connecting rod 323 to move upwards through the swinging block 327 when moving. The outer peripheral surface of the swinging shaft 330 is provided with a sinking groove, a pressure spring and a clamping block 334 positioned above the pressure spring are arranged in the sinking groove, and when the radial pressure of the clamping block 334 exceeds a set value, the clamping block 334 is pressed into the sinking groove, and the swinging shaft 330 and the swinging sleeve 328 relatively rotate. The end of the swinging sleeve 328 is provided with a stopping notch, the side wall of the stopping notch is in stopping fit with the clamping block 334, and when the swinging block 327 rotates, the swinging sleeve 328 can drive the swinging shaft 330 to rotate through the stopping fit of the side wall of the stopping notch and the clamping block 334. In addition, the swinging shaft 330 is in threaded engagement with the swinging sleeve 328, when the swinging sleeve 328 and the swinging shaft 330 are relatively rotated, the swinging shaft 330 moves towards the swinging sleeve 328 to press the pushing spring on the spring short shaft 332, and when the first through hole 329 and the second through hole 326 are overlapped, the pushing spring pushes the spring short shaft 332 into the first through hole 329 and the second through hole 326 to connect the swinging block 327 and the swinging 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 gear assembly, a screw nut assembly and two transmission racks 342, a through slot hole for the transmission racks 342 to pass through is formed in the support base 301, 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 engagement position and a separation position, and when in the engagement position, the third gear is engaged with the transmission racks 342, and when in the separation position, the third gear is separated from the transmission racks 342. The worm gear and worm assembly is hidden in the frame 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 the transmission rack 342, the fourth gear drives the worm 345 to rotate so as to drive the worm wheel 344 to rotate, the screw nut assembly comprises a transmission nut and a transmission screw 346 which are in transmission fit, and the transmission nut is arranged in the middle of the worm wheel 344 and is driven by the worm wheel 344 to rotate, and is matched with the transmission screw 346 so as to drive the transmission 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 fixedly provided 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 for guiding and sliding fit with the sliding groove in the horizontal direction.

As shown in fig. 1, 5 and 6, the control mechanism 400 includes a control rack 410, a traction assembly 420 and a switching rack 430, a groove is formed on an upper end surface of the support base 301, the control rack 410 is a U-shaped rack with a bottom placed in the groove, and the control rack 410 moves in a direction approaching to the driving rack 342 to push the driving rack 342, so that the driving rack 342 is separated from the third gear, that is, the driving rack 342 moves from the engagement position to the separation position.

As shown in fig. 5 and 10, the supporting base 301 is provided with a mounting vertical plate 421, the traction assembly 420 includes a first traction gear 422 and a second traction gear 423 sequentially disposed on the mounting vertical plate 421 from top to bottom, wherein an annular gear sleeve meshed with the first traction gear 422 is disposed on an outer circumferential surface of the swinging sleeve 328, the second traction gear 423 is meshed with the driving rack 342, the swinging sleeve 328 can drive the first traction gear 422 to rotate when rotating, the control frame 410 is rotatably provided with a rotating shaft sleeve 412, the first traction gear 422 is in driving connection with the rotating shaft sleeve 412 through a first driving belt 424, a traction shaft 414 is mounted on one end of the rotating shaft sleeve 412 far from the control frame 410 through threads, the traction shaft 414 is rotatably fixed on the mounting vertical plate 421 through a bearing and cannot move along an axial direction, and the traction shaft 414 is in driving connection with the second traction gear 423 through a second driving belt 425. The diameter of the first traction wheel is larger than that of the second front traction wheel, so that the output rotation speeds of the first traction wheel and the second traction wheel are the same, and when the transmission rack 342 is positioned in the meshing position, the rotation speeds of the rotating shaft sleeve 412 and the traction shaft 414 are the same, and the rotating shaft sleeve 412 and the traction shaft 414 cannot rotate relatively. When the driving rack 342 is located at the separation position, the traction shaft 414 is stationary, the rotating shaft sleeve 412 rotates relative to the traction shaft 414 under the traction of the first belt pulley, and the rotating shaft sleeve 412 moves in the direction approaching to the traction shaft 414 and drives the control frame 410 to move in the direction approaching to the driving rack 342 because the rotating shaft sleeve 412 and the traction shaft 414 are connected through threads.

As shown in fig. 7, 9 and 10, the switching frame 430 is a rectangular frame disposed on the support base 301, and a pushing block 432 is fixed on one side of the switching frame 430, which is 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 at the same time. The inner side and the outer side of one side of the switching frame 430 facing away from the driving rack 342 are respectively fixed with a switching lever 434 and a switching handle 436, and three communicating switching holes for inserting the switching lever 434 are formed on the side surface of the supporting base 301, so that the switching lever 434 has a first switching position, a second switching position and a third switching position. When the switch lever 434 is in the first switch position, the pushing block 432 of the switch frame 430 can only push the driving rack 342 for transmitting power to the first push-pull rod 202, when the switch lever 434 is in the second switch position, the pushing block 432 of the switch frame 430 cannot drive the rack 342, and when the switch lever 434 is in the third switch position, the pushing block 432 of the switch frame 430 can only push the driving 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 both provided with guide pins, a rail groove plate 210 is also fixed on the bottom surface of the frame body 100, and a rail 211 overlapped with the movement track of the guide pins is provided on the rail groove plate 210, so that the guide pins can slide in the rail 211 in a guiding manner.

The auxiliary supporting frame for burn patients of the embodiment is used as follows:

first, before use, it is determined where the patient's legs need to be emptied, if the patient's thighs need to be emptied, the switch lever 434 of the switch stand 430 is moved to the first switch position, if the patient's calves need to be emptied, the switch lever 434 of the switch stand 430 is moved to the third switch position, and if the patient's thighs and calves need to be emptied, the switch lever 434 of the switch stand 430 is moved to the second switch position.

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

As shown in fig. 5, 7, 10 and 13, the driving rack 342 moves downward, the fourth gear on the worm 345 rotates to drive the worm and gear assembly to rotate, the driving nut in the worm wheel 344 synchronously rotates to drive the driving screw 346 to drive 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 groove, and the hinge shaft 205 of the first support plate 201 and the second support plate 203 is restrained in the sliding groove 311, so that the hinge shaft 205 ascends in the sliding groove 311, and meanwhile, the first push-pull rod 202 and the second push-pull rod 204 approach each other under the guidance of the track 211 of the track groove plate 210 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 continue to ascend. In this process, since the driving rack 342 and the swinging housing 328 are both moving, the rotation speeds of the first traction gear 422 and the second traction gear 423 mounted on the vertical plate 421 are the same, and the rotation speeds of the rotating shaft housing 412 and the traction shaft 414 are the same, so that the two cannot rotate relatively.

Since the motor 305 is still driving the first gear 302, but the horizontal barrier 348 cannot be further lifted, the swinging sleeve 328 of the swinging block 327 presses the clamping block 334 on the swinging shaft 330 into the sinking groove, and the swinging sleeve 328 and the swinging shaft 330 relatively rotate, and since the swinging shaft 330 is in threaded engagement with the swinging sleeve 328, the swinging shaft 330 moves toward the swinging sleeve 328, so that the pushing spring on the spring short shaft 332 is compressed. When the drive rod 321 is moved to a position perpendicular to the swing rod 325, the first through hole 329 on the swing block 327 communicates with the second through hole 326 on the swing rod 325, and the pressure release of the jack spring pushes the spring stub 332 into the first through hole 329 and the second through hole 326, thereby connecting the swing block 327 and the swing rod 325.

When the motor 305 continues to rotate, the second gear 303 drives the driving rod 321 to rise and swing, the swinging block 327 and the swinging sleeve 328 also rotate and push the connecting rod 323 to move vertically upwards, and the rack cannot be driven by the swinging shaft 330 to continue to descend at this time, so that the rotating shaft sleeve 412 and the traction shaft 414 cannot maintain the same rotation speed, and rotate relatively, the rotating shaft sleeve 412 moves towards the direction approaching the traction shaft 414 and drives the U-shaped frame to move towards the direction approaching the driving rack 342, and the U-shaped frame pushes the switching frame 430 to move towards the driving rack 342.

When the switch lever 434 is in the first switch position, the racks 342 that transmit power to the first push-pull rod 202 are pushed to the separated position, when the switch lever 434 is in the second switch position, neither of the racks 342 can be pushed, and when the switch lever 434 is in the third switch position, the racks 342 that transmit power to the second push-pull rod 204 are pushed to the separated position.

Since the third gear on the swinging shaft 330 still engages with the driving rack 342 which is not pushed to the separated position, the swinging shaft 330 cannot rotate, but the swinging block 327 drives the swinging shaft 330 to move upwards, so that the corresponding driving rack 342 is also driven to move upwards. 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 baffle 348 to descend, the horizontal baffle 348 descends and drives 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 required position, the motor 305 is turned off.

When the switch lever 434 is in the first switch position, the final state of the first support plate 201 and the second support plate 203 is as shown in fig. 14, in which the thighs of the patient are emptied, facilitating the care of the thighs; when the switch lever 434 is in the second switch position, the final states of the first support plate 201 and the second support plate 203 are as shown in fig. 15, in which both the thighs and the calves of the patient are emptied, facilitating the simultaneous nursing of the thighs and the calves; when the switch lever 434 is in the third switch position, the final state of the first support plate 201 and the second support plate 203 is as shown in fig. 16, in which the patient's lower leg is emptied, facilitating the care of the lower leg.

Example 2 of auxiliary supporting 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 may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (1)

1. The auxiliary support frame for the burn patient is characterized by comprising a frame body, and a leg supporting mechanism and a driving mechanism which are arranged on the frame body, wherein a foot rest is arranged on the frame body, the leg supporting mechanism comprises a first support plate, a second support plate, a first push-pull rod and a second push-pull rod, the first support plate and the second support plate are hinged through a hinge shaft, the end part of the hinge shaft is restrained in a chute extending along the vertical direction, and the first push-pull rod and the second push-pull rod are correspondingly hinged on the first support plate and the second support plate respectively;

the driving mechanism comprises a supporting base, a first gear and a second gear which are arranged on the supporting base, the second gear is meshed with the first gear and revolves around the first gear under the drive of the first gear, the driving mechanism also comprises a connecting rod component and a transmission component, the connecting rod component is in transmission connection with the second gear, the connecting rod component comprises two swinging rods and two swinging blocks which are hinged together in a one-to-one correspondence manner, the swinging blocks are provided with guide holes for guiding and movably penetrating the corresponding swinging rods, 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 component, the transmission component is used for driving the first push-pull rod and the second push-pull rod to lift, the connecting rod component also comprises a transmission rod, the second gear is fixed in the middle of the transmission rod, two ends of the transmission rod are respectively hinged with the two swinging rods, the swinging blocks are provided with swinging shafts, the end of the swinging shaft, which is far away from the second gear, is provided with a third gear, the transmission assembly comprises a worm gear assembly, a 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 gear assembly, the screw nut assembly comprises a transmission nut and a transmission screw which are in transmission fit, the transmission nut is arranged on the turbine assembly and is driven by the worm gear assembly to rotate, the transmission screw is used for driving the corresponding first push-pull rod and the second push-pull rod to lift, the auxiliary support frame for burn patients also comprises a control mechanism, the transmission racks are provided with a meshing position matched with the third gear and a separation position separated from the third gear on a support base, the control mechanism comprises a control frame and a traction assembly, the control frame is used for pushing the transmission racks to move from the meshing position to the separation position, the traction assembly is in transmission connection with the control frame to drive the control frame, the traction assembly is in transmission connection with the driving mechanism, the traction assembly comprises a mounting vertical plate mounted on the support base, a first traction gear and a second traction gear which are arranged on the mounting vertical plate, a rotating shaft sleeve and a traction shaft which are in threaded connection are rotationally arranged on the control frame, 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, the traction shaft sleeve is provided with a traction position to drive the control frame to push the transmission racks when in traction position, the control mechanism also comprises a switching frame, the switching frame is provided with a pushing block, the pushing block is positioned between the transmission racks and the control frame, the length of the pushing block is smaller than the distance between the two transmission racks, the switching frame can conduct sliding in the length direction of the pushing block, 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 racks which transmit power to the first push-pull rod when in the first switching position, the switching frame is used for pushing the pushing block to enter a gap between the two transmission racks when in second switching position, the switching frame is used for pushing the transmission racks for transmitting power to the second push-pull rod when in third switching position, a supporting table is arranged on the supporting base, a sliding groove is arranged on one surface of the supporting table, which is opposite to the first gear, of the supporting table, a clamping groove extending along the vertical direction is arranged on one surface of the supporting table, which is opposite to the first gear, the connecting rod assembly further comprises a connecting rod which is used for connecting the two swinging blocks and is hinged with the two swinging blocks, the middle part of the connecting rod is fixedly provided with a central push rod, one end of the supporting shaft, which is far away from the connecting rod, is supported in the clamping groove, a through hole for the transmission screw rod to pass is formed in the frame body, the lower end of the transmission screw rod is fixedly provided with a horizontal baffle plate, sliding grooves are formed in the horizontal baffle plate, guide blocks for guiding and sliding fit with the sliding grooves in the horizontal direction are respectively arranged on the first push-pull rod and the second push-pull rod, the first push-pull rod and the second push-pull rod are both provided with guide pins, the bottom surface of the frame body is also fixed with a track groove plate, the track groove plate is provided with a track which coincides with the movement track of the guide pins for guiding and sliding of the guide pins, firstly, before the use, the position of the leg of a patient needs to be emptied, if the thigh of the patient needs to be emptied, the switch rod of the switch frame is moved to a first switch position, if the calf of the patient needs to be emptied, the switch rod of the switch frame is moved to a third switch position, if the thigh and the calf of the patient need to be emptied, the switch rod of the switch frame is moved to a second switch position, after the switch frame is switched into position, the first gear is driven by a starting motor to rotate anticlockwise, the second gear revolves around the first gear and drives the transmission rod to swing anticlockwise, the transmission rod drives the swinging rod to slide in the guide hole of the swinging block, so that the swinging block rotates anticlockwise, when the swinging block rotates, the swinging sleeve pushes the clamping block on the swinging shaft to drive the swinging shaft to rotate anticlockwise, the third gear on the swinging shaft is meshed with the transmission rack to drive the transmission rack to move downwards, the transmission rack moves downwards, the fourth gear on the worm rotates to drive the worm and gear component to rotate, the transmission nut in the worm wheel synchronously rotates, the transmission screw drives the horizontal baffle to ascend, the horizontal baffle drives the first push-pull rod and the second push-pull rod to ascend through the sliding groove, the hinge shafts of the first support plate and the second support plate are restrained in the sliding groove, the hinge shafts ascend in the sliding groove, meanwhile, under the guidance of the rails of the rail groove plate, the first push-pull rod and the second push-pull rod are close to each other until the horizontal baffle moves to the limit position and is stopped by the lower bottom surface of the frame body, the lifting cannot be continued, in the process, as the transmission rack and the swing sleeve are both in motion, the rotation speeds of the first traction gear and the second traction gear which are arranged on the vertical plate are the same, and the rotation speeds of the rotating shaft sleeve and the traction shaft are the same, so that the rotating shaft sleeve and the swing sleeve cannot rotate relatively; the motor drives the first gear, but the horizontal baffle can not continuously ascend, so that the swinging sleeve of the swinging block presses the clamping block on the swinging shaft into the sinking groove, the swinging sleeve and the swinging shaft relatively rotate, the swinging shaft moves inwards to the swinging sleeve due to the threaded fit of the swinging shaft and the swinging sleeve, the pushing spring on the short shaft of the spring is compressed, when the transmission rod moves to a position perpendicular to the swinging rod, the first through hole on the swinging block is communicated with the second through hole on the swinging rod, and the pressure of the pushing spring pushes the short shaft of the spring into the first through hole and the second through hole, so that the swinging block is connected with the swinging rod; when the motor continues to rotate, the second gear drives the transmission rod to ascend and swing, the swinging block and the swinging sleeve thereof also rotate and push the connecting rod to vertically move upwards, and the rack cannot be driven by the swinging shaft to continuously descend at the moment, so that the rotating shaft sleeve and the traction shaft cannot maintain the same rotating speed, and relatively rotate, the rotating shaft sleeve moves towards the direction close to the traction shaft to drive the U-shaped frame to move towards the direction close to the transmission rack, and the U-shaped frame pushes the switching frame to move towards the transmission rack; when the switching rod is positioned at the first switching position, the transmission racks which transmit power to the first push-pull rod are pushed to the separation position, when the switching rod is positioned at the second switching position, both transmission racks cannot be pushed, and when the switching rod is positioned at the third switching position, the transmission racks which transmit power to the second push-pull rod are pushed to the separation position; the third gear on the swinging shaft is still meshed with the transmission rack which is not pushed to the separation position, so that the swinging shaft cannot rotate, the corresponding transmission rack is driven to move upwards when the swinging block drives the swinging shaft to move upwards, the transmission rack moves upwards to drive the transmission nut to rotate in the opposite direction through the worm and gear assembly, the transmission screw rod drives the corresponding horizontal baffle to descend, the horizontal baffle descends and drives the corresponding first and/or second push-pull rod to descend, the corresponding first and/or second support plate swings, and when the motor descends to the required position, the motor is turned off; when the switching rod is positioned at the first switching position, the thighs of the patient are emptied in the state, so that nursing is convenient; when the switching rod is positioned at the second switching position, the thighs and the shanks of the patient are emptied in the state, so that nursing is convenient for both thighs and shanks; when the switching rod is positioned at the third switching position, the lower leg of the patient is emptied in the state, and nursing is convenient.