CN223365820U - A deformable chair for examination of the elderly - Google Patents

Abstract

The utility model discloses a deformation chair for the elderly inspection, which adopts a seat plate pad capable of rotating up and down and an armrest seat capable of moving up and down to assist a patient to sit and stand up, wherein the seat plate pad rotates up to a maximum angle and the armrest seat moves up to a maximum height when the patient sits, the buttocks of the patient are pressed on the seat plate pad, hands or small arms are pressed on the armrest seat, and then the seat plate pad slowly rotates down and the armrest seat slowly moves down so as to guide the patient to sit down gradually, so that the patient cannot fall and fall down due to insufficient support. When the patient needs to stand up, the seat board cushion rotates upwards slowly, and the armrest seat moves upwards slowly, so that auxiliary support is provided for the patient, and the patient is ensured to have enough strength to stand up safely. The mode can effectively prevent the patient from falling down and falling down, thereby causing the injury of the patient. Simultaneously, the bed can be unfolded to be in a bed state, and the first universal wheel and the second universal wheel can be combined to move quickly, so that a patient can be moved quickly to rescue in an emergency state.

Description

Deformation chair for old people inspection

Technical Field

The utility model relates to chairs and medical auxiliary equipment, in particular to a deformation chair for the examination of the elderly.

Background

In hospital tests, the blood drawing test is the main proportion, and when the blood drawing is completed in the test room, a doctor is positioned in the test room, a patient is positioned outside the test room, the inside and the outside are divided by transparent glass, and only one channel and an operation table which are convenient to operate are reserved. The stool is placed outdoors to facilitate the patient to sit, so that the medical staff can conveniently operate, but the old people feel tired in the sitting and standing processes, and people are generally required to support the stool, otherwise, the stool is likely to directly fall on the stool or the ground when sitting, and the old people cannot stand or fall due to insufficient strength when standing, so that serious potential safety hazards exist.

Because young people are generally busy, most old people go to a hospital separately for diagnosis and treatment, and medical staff cannot provide help in time when being located in a test room, the old people are injured by falling and cannot stand up by themselves. Meanwhile, due to the fact that the old people are weakened, dizziness, limb weakness and even syncope can occur during blood drawing, emergency treatment is needed at the moment, but a stool is generally adopted outside a current inspection room, so that on one hand, a patient falls down easily when the conditions occur, and on the other hand, the emergency treatment is not convenient for rapidly moving the patient.

Therefore, how to realize safe sitting and standing of the old people during inspection, and prevent the old people from falling down and rapidly moving the old people to rescue in emergency is a technical scheme which needs to be solved at present.

Disclosure of utility model

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a deformation chair for elderly people inspection, which can assist the elderly people in sitting and standing up, and can prevent falling.

In order to achieve the above purpose, the utility model provides a deformation chair for the elderly inspection, which comprises a bracket, wherein the bottom of the bracket is provided with a first universal wheel, the bracket is respectively provided with an armrest box, a seat board and a chair back board, and the armrest boxes are respectively arranged at two sides of the seat board;

a seat board cushion is arranged above the seat board, one end of the seat board cushion is hinged with the armrest boxes at two sides through a seat board cushion shaft, the seat board cushion is also hinged with a seat cushion electric cylinder shaft of a seat cushion electric cylinder, and a shell of the seat cushion electric cylinder is directly or indirectly hinged with a support plate of a support;

The handrail box is internally provided with a hollow cavity, a handrail electric cylinder is arranged in the cavity, and a handrail electric cylinder shaft of the handrail electric cylinder penetrates out of the handrail box and is assembled and fixed with the handrail seat.

As a further improvement of the utility model, the side surface of the armrest seat and the armrest box are respectively assembled and fixed with the two ends of the elastic sleeve, and the elastic sleeve has elasticity and shields the gap between the armrest seat and the armrest box.

As a further improvement of the utility model, a power supply, a battery, a main control chip and a wireless module are arranged in the bracket, the invalid module is in wireless communication with a remote controller in the inspection room, the power supply is communicated with the mains supply to introduce electric energy, the battery stores the electric energy sent by the power supply for standby, and the main control chip is used for acquiring signals of the wireless module and controlling the electric cylinder of the hand-holding cylinder and the electric cylinder of the cushion after analysis;

The foot switch, the button switch and the rocking handle switch are respectively connected to a main control chip, wherein the foot switch on one side and the button switch on the other side control the extension of the electric cylinder shaft of the hand-held electric cylinder and the cushion electric cylinder, the foot switch on the other side and the button switch on the other side control the shortening of the electric cylinder shaft of the hand-held electric cylinder and the cushion electric cylinder, and the rocking handle switch controls the extension and shortening of the electric cylinder shaft of the hand-held electric cylinder and the cushion electric cylinder.

The chair back plate and the bracket or the seat plate can be assembled in a relative circumferential rotation mode so that the chair back plate rotates in a horizontal or vertical interval of the ground, the chair back plate is provided with a clamping groove, the chair back plate and the wheel frame shaft can be assembled in a circumferential rotation mode, the wheel frame shaft is fixed on the wheel frame and is sleeved with a shaft sleeve, the shaft sleeve is provided with a first locking groove and a second locking groove, the wheel frame is provided with a second universal wheel, one of the first locking groove and the second locking groove is assembled in a clamping mode, the wheel frame shaft cannot rotate in a clamping mode, the locking piece is clamped and installed in the clamping groove in a sliding mode, the locking piece is assembled and fixed with one end of the locking shaft, the other end of the locking shaft is sleeved with a locking piece spring, the locking shaft is assembled and fixed with the locking shaft ring in a sliding mode, the shaft plate and the chair back plate are assembled and fixed in a sleeved mode, and the locking piece spring exerts elastic force pushing the locking piece to the wheel frame shaft so that the locking piece can be clamped and assembled with the first locking groove or the second locking groove.

The utility model further improves, the two armrest boxes are assembled with the leg support plate through the shaft lock assembly, the leg support plate is fixedly provided with a leg support plate shaft, the two ends of the leg support plate shaft are respectively provided with a first clutch head, the first clutch heads are arranged in corresponding shaft holes and can be assembled in a relative circumferential rotation manner, and the shaft holes are arranged on the armrest boxes.

As a further improvement of the utility model, the chair back plate is assembled with the two armrest boxes through the shaft lock assembly, the chair back plate is fixedly provided with a back plate shaft, two ends of the back plate shaft respectively penetrate through two sides of the chair back plate, two ends of the back plate shaft are respectively provided with a first clutch head, the first clutch heads are arranged in corresponding shaft holes on the armrest boxes and can be assembled with the corresponding shaft holes in a circumferential rotating mode, and the shaft holes are arranged on the armrest boxes.

As a further improvement of the utility model, the shaft lock assembly comprises a first clutch head, a second clutch head, a clutch shaft and a switch plate, wherein the end faces of the first clutch head and the second clutch head, which are opposite to each other, are respectively provided with a first clutch bulge and a second clutch bulge which are mutually clamped;

The second clutch head is arranged at one end of the clutch shaft, the other end of the clutch shaft is sleeved with a clutch spring and then penetrates through the switch plate groove, a clutch collar is arranged at one end of the clutch shaft, which penetrates through the switch plate groove, and cannot penetrate through the switch plate groove, and the switch plate groove is arranged on the switch plate and penetrates through the switch plate;

The second clutch head is clamped and axially slidably arranged in the shaft hole, and the clutch spring applies elastic force for pressing the second clutch head to the first clutch head, so that the first clutch head and the second clutch head are kept pressed in an initial state, and the first clutch head cannot rotate;

One end of the switch board can be assembled with the shaft seat in a circumferential rotation way through the switch board shaft, and the shaft seat is fixedly arranged on the armrest box.

As a further improvement of the utility model, the two shaft lock assemblies corresponding to the leg support plates or the chair back plates are respectively arranged in pairs, the switch plates of each pair of shaft lock assemblies are respectively provided with a linkage block, the linkage blocks are provided with through linkage grooves, one ends of the linkage rods penetrate through the linkage grooves, the linkage rods are positioned at one side of the linkage grooves, which is close to the armrest box, and are assembled with the first linkage rod ring, the first linkage rod ring cannot penetrate through the linkage grooves, the other ends of the linkage rods are assembled with one side of the linkage piece, the two linkage rods of the same pair of shaft lock assemblies are assembled with two sides of the linkage piece, and the linkage piece is assembled with the support in a circumferential rotation manner through the shaft of the linkage piece.

As a further improvement of the utility model, a second linkage rod ring is arranged at the position corresponding to the outer side of the linkage piece groove of each linkage rod, and the second linkage rod ring cannot pass through the linkage piece groove;

The other end of the linkage rod penetrates out of the catheter and then is assembled with one side of the linkage piece, the catheter is fixedly arranged on the bracket, and the linkage rod can axially slide relative to the catheter.

As a further improvement of the utility model, the armrest box is also provided with a limiting block, and the limiting block is used for limiting the leg support plate to rotate to a maximum angle parallel to the seat plate.

The beneficial effects of the utility model are as follows:

The utility model adopts the seat board cushion capable of rotating up and down and the armrest seat capable of moving up and down to assist the patient to sit and stand up, when the patient sits, the seat board cushion rotates up to the maximum angle, the armrest seat moves up to the maximum height, the buttocks of the patient are pressed on the seat board cushion, the hands or the arms are pressed on the armrest seat, then the seat board cushion slowly rotates down, and the armrest seat slowly moves down, so that the patient is guided to sit down gradually, and the patient cannot fall and fall down due to insufficient support. When the patient needs to stand up, the seat board cushion rotates upwards slowly, and the armrest seat moves upwards slowly, so that auxiliary support is provided for the patient, and the patient is ensured to have enough strength to stand up safely. The mode can effectively prevent the patient from falling down and falling down, thereby causing the injury of the patient. Meanwhile, the patient can be unfolded to be in a bed state, and the first universal wheel and the second universal wheel are combined to move rapidly, so that the patient can be moved rapidly to rescue in an emergency state, the patient transferring time is shortened greatly, and the rescue efficiency can be improved effectively.

Drawings

FIGS. 1 to 2 are schematic views of the structure of the present utility model (chair state);

FIGS. 3 to 4 are schematic views of the structure of the present utility model (bed state);

FIG. 5 is a cross-sectional view (chair state) of the present utility model at the center plane of the lock shaft 520 axis;

FIG. 6 is an enlarged view of F1 of FIG. 5;

FIG. 7 is a cross-sectional view B-B of FIG. 5;

FIG. 8 is an enlarged view of F2 of FIG. 7;

FIG. 9 is a cross-sectional view A-A of FIG. 5;

FIG. 10 is an enlarged view of FIG. 9 at F3;

fig. 11 to 13 are partial schematic views (chair state) of the present utility model;

fig. 14 is a schematic view of the structure of the shaft lock assembly.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-14, the deformation chair of this embodiment includes a bracket 110, a first universal wheel 210 is installed at the bottom of the bracket 110, a handrail box 120, a seat plate 130 and a chair back plate 140 are installed on the bracket 110, two handrail boxes 120 are installed on two sides of the seat plate 130, the chair back plate 140 is assembled with the two handrail boxes 120 through an axle lock assembly, and the two handrail boxes 120 are also assembled with a leg support plate 410 through another axle lock assembly.

The back plate 430 is fixedly arranged on the chair back plate 140, the seat plate 420 is arranged above the seat plate 130, one end of the seat plate 420, which is close to the leg support plate 410, is hinged with the armrest boxes 120 on two sides through the seat plate pad shaft 421, the seat plate 420 is also hinged with the seat cushion electric cylinder shaft 341 of the seat cushion electric cylinder 340, the shell of the seat cushion electric cylinder 340 is directly or indirectly hinged with the support plate 111 of the support 110, and the seat cushion electric cylinder 340 is started to drive the seat cushion electric cylinder shaft 341 to axially stretch and retract, so that the seat plate 420 is driven to rotate by taking the seat plate pad shaft 421 as the center. Referring to fig. 5, when the seat plate pad shaft 421 rotates upwards, the seat plate pad shaft 421 is in a state of assisting the patient in sitting, and after the buttocks of the patient are pressed on the seat plate pad 420, the seat plate pad shaft 341 is retracted, so as to drive the seat plate pad 420 to reversely reset until the state of fig. 5 is restored, and the design can effectively avoid that the buttocks directly fall down and fall on the seat plate pad 420 due to lack of effective support in sitting, so that the damage probability to the buttocks of the patient is reduced. In addition, when the patient stands up, the seat plate cushion 420 is driven to rotate upwards by the extension of the seat cushion cylinder shaft 341 so as to provide auxiliary standing force to assist the patient to stand.

The armrest box 120 is provided with a hollow cavity 124, the cavity 124 is internally provided with an armrest electric cylinder 350, an armrest electric cylinder shaft 351 of the armrest electric cylinder 350 penetrates out of the armrest box 120 and then is assembled and fixed with an armrest seat 440, and the armrest seat 440 is used for supporting the forearm of a patient. Referring to fig. 1, in an initial state, the armrest seat 440 is positioned closest to the armrest box 120, which is not different from the armrest function of a conventional chair. When the patient needs to sit, the armrest cylinder 350 drives the armrest cylinder shaft 351 to extend, thereby driving the armrest seat 440 to move up to a position farthest from the armrest box 120, and at this time the seat plate pad 420 rotates up to a maximum angle. After the buttocks of the patient are pressed on the seat board cushion 420 and hands or arms are pressed on the armrest seat 440, the seat board cushion 420 is reversely rotated and reset, and the armrest cylinder 350 drives the armrest seat 440 to move towards the armrest box 120 to support the patient to slowly seat, so that the patient is prevented from falling on the deformation chair due to lack of effective support. When the patient needs to get up, the seat plate pad 420 rotates upward to provide supporting force, and the armrest base 440 is driven to move upward by the armrest cylinder 350 to provide supporting force for getting up. Preferably, the four sides of the armrest seat 440 and the armrest box 120 are respectively assembled and fixed with two ends of an elastic sleeve (not shown), so that the elastic sleeve is used to always seal the gap between the armrest seat 440 and the armrest box 120 to avoid pinching.

In this embodiment, a power supply, a battery, a main control chip and a wireless module can be installed in the bracket 110, and the invalid module is in wireless communication with a remote controller in the inspection room, so that a medical staff in the main control room can operate the deformation chair to assist a patient in sitting and standing up. The power supply is communicated with the mains supply to introduce electric energy, the battery stores the electric energy sent by the power supply for standby, and the main control chip is used for acquiring signals of the wireless module and controlling the hand holding cylinder 350 and the seat cushion cylinder 340 after analysis. In this embodiment, the wireless module may select a bluetooth module, a 5G module, etc., and the main control chip may select MCU, PLC, CPU, an industrial personal computer, etc. The control method is a basic automatic control scheme, is a very mature prior art, and can directly adopt related schemes such as a trolley or a wheelchair with a wireless control function. In this embodiment, the deformation chair belongs to the equipment that need not to remove for a long time, and consequently the access commercial power is very suitable, certainly in order to facilitate the use, can also adopt the design that charges of wireless to avoid the power cord to influence patient's current, namely install the receiver of wireless module that charges in the support, install the transmitter of wireless module that charges on ground, thereby realize wireless charging, just so can effectively avoid the current influence that the wiring caused. Of course, the socket can be arranged below the bracket, the deformation chair is arranged above the whole socket, and the power line does not exceed the bracket, so that the passing interference caused by wiring can be effectively avoided.

In some embodiments, a foot switch 310 may be installed at the bottom of the support 110, a button switch 320 is installed above the support 110, and a rocking handle switch 330 is installed on the armrest box 120, where the foot switch 310, the button switch 320, and the rocking handle switch 330 are respectively two and located at two sides of the support 110 or the armrest box, and signals of the foot switch 310, the button switch 320, and the rocking handle switch 330 are all connected to a main control chip, where the foot switch 310 on one side, the button switch 320 on one side, and the foot switch 320 on the other side control the elongation of the armrest cylinder shaft 351 and the cushion cylinder shaft 341, and the foot switch 310 on the other side, and the button switch 320 on the other side control the shortening of the armrest cylinder shaft 351 and the cushion cylinder shaft 341. The rocking handle switch 330 pushes forward to control the extension of the electric cylinder holding shaft 351 and the electric cylinder seat 341, and pulls backward to control the shortening of the electric cylinder holding shaft 351 and the electric cylinder seat 341. The design is mainly used for facilitating the operation of the accompanying person and the self operation of the patient, the rocking handle switches 330 are positioned on two sides, so that the self operation of the patient is facilitated, and the foot switch 310 and the button switch 320 are used for facilitating the operation of the accompanying person. This design mainly provides more use modes to improve the practicality. Of course, priorities may be set in the control system, such as the highest remote control, the foot switch 310 and the push button switch 320 times, and the last of the rocker switch 330, so that command collision can be prevented, and medical staff can perform use management and caregivers can perform use.

Referring to fig. 1-14, the back plate 140 is respectively provided with a side block 141, a handle 142 and a clamping groove 143, the back plate 140 is also assembled with the wheel frame shaft 151 in a circumferential rotation manner, the wheel frame shaft 151 is fixed on the wheel frame 150, a shaft sleeve 160 is sleeved and fixed on the wheel frame shaft 151, a first locking groove 161 and a second locking groove 162 are arranged on the shaft sleeve 160, the wheel frame 150 is provided with a second universal wheel 220, one of the first locking groove 161 and the second locking groove 162 is assembled with the locking block 510 in a clamping manner, so that the wheel frame shaft 151 cannot rotate in a circumferential manner, the locking block 510 is clamped and slidably mounted in the clamping groove 143, the locking block 510 is assembled and fixed with one end of the locking shaft 520, the other end of the locking shaft 520 is sleeved and fixed with the locking block spring 540 after passing through the shaft plate 530, the locking shaft 520 is assembled and fixed with the locking collar 521, the locking shaft 520 is assembled with the shaft plate 530 in a sliding manner, and the shaft plate 530 is assembled and fixed with the back plate 140. The locking piece spring 540 applies an elastic force pushing the locking piece 510 to the wheel frame shaft 151 to keep the locking piece 510 engaged with the first locking groove 161 or the second locking groove 162. The handle 142 is used to facilitate movement of the deformed chair or pushing of the deformed chair after it has been changed to a bed position.

Referring to fig. 1 and 5, in a chair state, when wheel frame 150 is in a retracted state, lock piece 510 is engaged with first lock groove 161 to maintain the retracted state of wheel frame 150. Referring to fig. 3-4, when the frame needs to be unfolded to the bed state, lock shaft 521 drives lock shaft 520 to squeeze lock block spring 540 to drive lock block 510 to gradually withdraw from first lock groove 161, and then wheel frame 150 is rotated to unfold the frame to the state of fig. 3, lock block 510 is opposite to second lock groove 162, lock shaft 521 is released, and lock block spring 540 drives lock block 510 to clamp into second lock groove 162 to complete locking of wheel frame 150. The design of wheel frame 150 and second universal wheel 220 mainly allows for easy tilting and tilting, i.e. easy secondary injury, by only supporting with first universal wheel 210 in the bed state. The addition of the wheel frame 150 and the second universal wheel 220 is very stable in the back bed state, and is not different from the existing transfer bed, so that the safety of patients can be greatly improved.

Referring to fig. 1-14, the leg support plate 410 is fixedly provided with a leg support plate shaft 411, two ends of the leg support plate shaft 411 are respectively provided with a first clutch head 610, a second clutch head 620, a clutch shaft 630 and a switch plate 640, the opposite end surfaces of the first clutch head 610 and the second clutch head 620 are respectively provided with a first clutch protrusion 611 and a second clutch protrusion 612 which are mutually engaged, the first clutch head 610 is rotatably installed in the shaft hole 122, and the shaft hole 122 is arranged on the armrest box 120.

The second clutch head 620 is mounted on one end of the clutch shaft 630, the other end of the clutch shaft 630 is sleeved with the clutch spring 601 and then passes through the switch plate groove 641, clutch collars 631 are respectively mounted on two sides of the clutch shaft 630, which are positioned on the switch plate groove 641, the clutch collars 631 cannot pass through the switch plate groove 641, and the switch plate groove 641 is arranged on the switch plate 640 and penetrates through the switch plate 640. The spacing between the clutch collars 631 is preferably greater than the depth of the switch plate slot 641 so that the switch plate 640 and clutch collars 631 can slide relative to each other to ensure that the switch plate 640 effectively moves the clutch shaft 630 axially.

The second clutch head 620 is engaged with and slidably mounted in the shaft hole 122 in an axial direction, and the clutch spring 601 applies an elastic force pressing the second clutch head 620 against the first clutch head 610, so that the first clutch head 610 and the second clutch head 620 are kept pressed in an initial state, and the leg rest 410 cannot rotate.

One end of the switch plate 640 is assembled with the shaft seat 123 in a circumferential rotation manner through the switch plate shaft 642, and the shaft seat 123 is mounted and fixed on the armrest box 120. In use, the switch plate 640 is driven to rotate by one end of the switch plate 640 far away from the switch plate shaft 642, so that the clutch shaft 630 is driven to move axially far away from the first clutch head 610, so that the first clutch head 610 and the second clutch head 620 are separated, and the leg support plate 410 can be adjusted in a rotating manner, for example, the state of fig. 1 is adjusted to the state of fig. 3, after the adjustment is completed, the switch plate 640 is released, the clutch spring 540 pushes the second clutch head 620 to move towards the first clutch head 610 to restore the mutual engagement of the first clutch protrusion 611 and the second clutch protrusion 621, and the leg support plate 410 cannot rotate.

Preferably, for convenience of use, the two shaft lock assemblies for controlling the relative rotation of the chair back plate 140 and the chair plate 130 and the two shaft lock assemblies for controlling the rotation of the leg support plate 410 relative to the chair plate 130 are respectively two and are in pairs, the switch plate 640 of each pair of shaft lock assemblies is respectively provided with a linkage block 643, the linkage block 643 is provided with a through linkage groove 6431, one end of the linkage rod 650 passes through the linkage groove 6431, the linkage rod 650 is positioned at two sides of the linkage groove 6431 and is respectively assembled with the first linkage rod ring 651, the first linkage rod ring 651 cannot pass through the linkage groove 6431, the other end of the linkage rod 650 passes through the guide pipe 660 and is assembled with one side of the linkage piece 670, two linkage rods 650 of the same pair of shaft lock assemblies are respectively assembled with two sides of the linkage piece 670, the linkage piece 670 is assembled with the bracket 110 in a circumferential rotation way through the linkage piece shaft 672, the guide pipe 660 is fixedly arranged on the bracket 110, and the linkage rod 650 can axially slide relative to the guide pipe 660.

When one of the switch plates 640 of the same pair of shaft lock assemblies rotates to open in a direction away from the armrest box (the leg support plate 410 needs to be rotated), the switch plate 640 drives the corresponding link rod 650 to move outwards, the link rod 650 drives the link member 670 to rotate around the link member shaft 672, thereby driving the other link rod 650 to move in a direction away from the link rod 650, and the other link rod 650 drives the other switch plate 640 to rotate, thereby driving the other clutch shaft 630 to move, so that both the two second clutch heads 620 can simultaneously move away from or close to the corresponding first clutch heads 610. The leg rest 410 can be quickly adjusted by operating only one side switch board, so that the use is greatly convenient.

In some embodiments, two sides of the linkage 670 are respectively provided with a through linkage groove 671, two linkage rods 650 respectively pass through the corresponding linkage grooves 671, and two sides of the linkage rod 650 located in the linkage grooves 671 are respectively provided with a second linkage rod ring 652, wherein the second linkage rod ring 652 cannot pass through the linkage grooves 671. This design allows the linkage 670 to be rotated by one linkage 650 to move the other linkage 650 axially.

The distance between the two first link rings 651 is slightly greater than the thickness of the link block 643, so that when the link block 643 rotates, the two first link rings 651 can slide relative to the link block 643. The distance between the two second link rings 652 is slightly greater than the depth of the corresponding link groove 671, so that the second link rings 652 can slide with respect to the link 670 when the link 670 rotates.

In some embodiments, the linkage rod 650 has elasticity, so that when the linkage piece 670 and the linkage block 643 rotate, the linkage rod 650 can adapt through elastic deformation of the linkage piece, and meanwhile, axial push-pull displacement is kept, so that the switch plate on the other side is driven to rotate. In some embodiments, only one second link ring 652 may be disposed at a position corresponding to the outside of the link groove 671 (the side of the link 670 facing the corresponding switch plate 640) of each link 650, so that the link 650 may push the link 670 to rotate and slide with the link 670 to offset the displacement in the vertical direction (fig. 10), and ensure that the other link 650 may be pushed to move axially when the link 670 rotates.

In some embodiments, there may be only one clutch collar 631 disposed at an end of the clutch shaft 631 away from the second clutch head 620, so that on one hand, it is ensured that the clutch shaft 630 is driven to move by the clutch collar 631 when the switch plate rotates, and the clutch spring drives the clutch shaft 630 and the second clutch head 620 to reset after the switch plate 640 is released.

In some embodiments, a limiting block 121 is further disposed on the armrest box 120, where the limiting block 121 is used to limit the leg rest 410 to rotate to a maximum angle parallel to the seat plate 130. When the rotation value of the leg rest 410 is in a horizontal state (fig. 3-4), the end surface of the leg rest 410 is tightly attached to the limiting block 121 to limit the maximum rotation angle, thereby indicating that the leg rest has been rotated to a horizontal state in use.

Preferably, the leg rest 410 is assembled and fixed with one end of the spring 401, and the other end of the spring 401 is assembled and fixed with the spring plate 112, and the spring 401 can push the leg rest 410 to rotate from the state of fig. 5 to the state of fig. 3. And in the state of fig. 5, the spring 401 is in a compressed and stored elastic state, once the corresponding second clutch head of the leg rest 410 is separated from the first clutch head, the spring drives the leg rest 410 to rotate upwards (as shown in fig. 5) until reaching the state of fig. 3, and then the corresponding second clutch head is pressed against the first clutch head.

The back plate shaft 144 is fixedly installed on the back plate 140, two ends of the back plate shaft 144 respectively penetrate through two sides of the back plate 140, two ends of the back plate shaft 144 are respectively fixedly installed with the first clutch head 610, the first clutch head 610 is installed in the other corresponding shaft hole 122 on the armrest box 120 and can be assembled in a circumferential rotation manner, and the shaft hole 122 corresponds to the other shaft lock assembly. When the angle of the chair back plate 140 needs to be adjusted, the corresponding switch plate 640 is rotated outwards to drive the second clutch head 620 to be separated from the first clutch head 610, the switch plate 640 is released after the adjustment is completed, and the switch spring 540 drives the second clutch head 620 to be in compression engagement with the first clutch head 610.

In some embodiments, a sleep monitoring band or a thin film piezoelectric sensor (not shown) may be installed in one or any of the seat pad 420, the armrest seat 440, and the back pad 430, and a signal of the sleep monitoring band or the thin film piezoelectric sensor is connected to the main control chip. When a human body is pressed on the sleep monitoring belt, the sleep monitoring belt can acquire human body microcurrent so that brief analysis is physiological data such as heart rate and respiratory rate. Therefore, on one hand, whether the deformed chair has a seat or not can be detected, and on the other hand, the physiological parameters of the human body can be detected to judge whether the patient has danger or not, so that rescue can be provided in time. For specific implementation, reference may be made to chinese patent publication CN221356850U, CN 201921008913.2.

Referring to fig. 5 and 3, when it is necessary to adjust from fig. 5 to fig. 3, first, locking piece 510 is pulled out of first locking groove 161, wheel frame 150 is opened, and locking piece 510 is snapped into second locking groove 162. The switch plate is then rotated to open the second clutch head 620 corresponding to the back plate 140, and the back plate 140 is rotated to the state of fig. 3, at which time the second universal wheel 220 is pressed against the ground. The other switch plate is rotated to rotate the leg support plate to the state shown in fig. 3, so that the chair state can be deformed to the bed state. The use process is very convenient and quick.

Referring to fig. 5, when auxiliary seating is required, the seat cushion cylinder 340 drives the seat cushion cylinder 340 to extend, the seat plate cushion 420 rotates upward to a maximum angle about the seat plate cushion shaft 421, and the armrest cylinder 350 drives the armrest seat 440 to move upward to a maximum displacement point. The buttocks of the patient are abutted against the seat plate pad 420 while sitting, and the two arms are abutted against the armrest seat 440. The seat cushion cylinder 340 then forces the seat plate cushion 420 to gradually reverse and reset and the armrest cylinder 350 forces the armrest seat 440 to gradually move downward and reset, thereby supporting the patient to sit slowly. When the patient needs to get up, the seat cushion electric cylinder 340 and the armrest electric cylinder 350 respectively drive the seat plate cushion 420 to gradually rotate upwards for resetting, and the armrest seat 440 gradually moves upwards for resetting to provide support, so as to assist the patient to stand.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the application, the assembly can be connected in a relatively rotatable way, such as through a bearing assembly, the assembly can be rotated relatively but can not move axially, such as by mounting shaft clamps on two sides of the shaft and the mounting device respectively, so that the shaft can not move axially, the assembly can be rotated circumferentially and can move axially, such as the assembly that the shaft passes through a shaft hole, and the assembly can be assembled by adopting spline grooves and spline fit.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, 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 present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (10)

1. The deformation chair for the old inspection is characterized by comprising a bracket, wherein a first universal wheel is arranged at the bottom of the bracket, a handrail box, a seat plate and a chair back plate are respectively arranged on the bracket, and two handrail boxes are respectively arranged at two sides of the seat plate;

a seat board cushion is arranged above the seat board, one end of the seat board cushion is hinged with the armrest boxes at two sides through a seat board cushion shaft, the seat board cushion is also hinged with a seat cushion electric cylinder shaft of a seat cushion electric cylinder, and a shell of the seat cushion electric cylinder is directly or indirectly hinged with a support plate of a support;

The handrail box is internally provided with a hollow cavity, a handrail electric cylinder is arranged in the cavity, and a handrail electric cylinder shaft of the handrail electric cylinder penetrates out of the handrail box and is assembled and fixed with the handrail seat.

2. The deformed seat of claim 1 wherein the side surface of the armrest seat and the armrest box are respectively assembled and fixed with two ends of an elastic sleeve, and the elastic sleeve has elasticity and shields a gap between the armrest seat and the armrest box.

3. The deformation chair according to claim 1 or 2, wherein a power supply, a battery, a main control chip and a wireless module are arranged in the bracket, the invalidation module is in wireless communication with a remote controller in the inspection room, the power supply is communicated with the mains supply to introduce electric energy, the battery stores the electric energy sent by the power supply for standby, and the main control chip is used for acquiring signals of the wireless module and controlling the electric cylinder of the armrest and the electric cylinder of the cushion after analysis;

The foot switch, the button switch and the rocking handle switch are respectively connected to a main control chip, wherein the foot switch on one side and the button switch on the other side control the extension of the electric cylinder shaft of the hand-held electric cylinder and the cushion electric cylinder, the foot switch on the other side and the button switch on the other side control the shortening of the electric cylinder shaft of the hand-held electric cylinder and the cushion electric cylinder, and the rocking handle switch controls the extension and shortening of the electric cylinder shaft of the hand-held electric cylinder and the cushion electric cylinder.

4. A deformable chair according to claim 1 or 2, wherein the chair back plate and the bracket or the seat plate are assembled in a manner of rotating relatively to each other circumferentially so that the chair back plate rotates in a horizontal or vertical region of the ground, the chair back plate is provided with a clamping groove, the chair back plate is assembled in a manner of rotating circumferentially with a wheel frame shaft, the wheel frame shaft is fixed on the wheel frame and is sleeved with a shaft sleeve, the shaft sleeve is provided with a first locking groove and a second locking groove, the wheel frame is provided with a second universal wheel, one of the first locking groove and the second locking groove is assembled in a clamping manner, the wheel frame shaft cannot rotate circumferentially, the locking piece is clamped in the clamping groove in a sliding manner, one end of the locking piece is fixedly assembled with one end of the locking shaft, the other end of the locking shaft is sleeved with a locking piece spring, the locking shaft sleeve is fixedly assembled with the locking shaft sleeve after penetrating through the shaft plate, the locking shaft sleeve and the locking shaft plate can be axially slidably assembled with the shaft plate, and the locking piece spring applies an elastic force pushing the locking piece to the wheel frame shaft so as to keep the locking piece to be assembled with the first locking groove or the second locking groove.

5. The deformed chair of claim 1, wherein the two armrest boxes are assembled with the leg support plate through the shaft lock assembly, leg support plate shafts are fixedly arranged on the leg support plate, first clutch heads are respectively arranged at two ends of the leg support plate shafts, the first clutch heads are arranged in corresponding shaft holes and can be assembled in a circumferential rotation mode relative to the corresponding shaft holes, and the shaft holes are formed in the armrest boxes.

6. The deformed chair of claim 1, wherein the chair back plate is assembled with the two armrest boxes through the shaft lock assembly, the chair back plate is fixedly provided with a back plate shaft, two ends of the back plate shaft respectively penetrate through two sides of the chair back plate, two ends of the back plate shaft are respectively provided with a first clutch head, the first clutch heads are installed in corresponding shaft holes on the armrest boxes and can be assembled with the corresponding shaft holes in a circumferential rotating mode, and the shaft holes are formed in the armrest boxes.

7. The deformation chair according to claim 5 or 6, wherein the shaft lock assembly comprises a first clutch head, a second clutch head, a clutch shaft and a switch plate, wherein the opposite end surfaces of the first clutch head and the second clutch head are respectively provided with a first clutch bulge and a second clutch bulge which are mutually clamped;

The second clutch head is arranged at one end of the clutch shaft, the other end of the clutch shaft is sleeved with a clutch spring and then penetrates through the switch plate groove, a clutch collar is arranged at one end of the clutch shaft, which penetrates through the switch plate groove, and cannot penetrate through the switch plate groove, and the switch plate groove is arranged on the switch plate and penetrates through the switch plate;

The second clutch head is clamped and axially slidably arranged in the shaft hole, and the clutch spring applies elastic force for pressing the second clutch head to the first clutch head, so that the first clutch head and the second clutch head are kept pressed in an initial state, and the first clutch head cannot rotate;

One end of the switch board can be assembled with the shaft seat in a circumferential rotation way through the switch board shaft, and the shaft seat is fixedly arranged on the armrest box.

8. The deformable chair of claim 7 wherein the two shaft lock assemblies are respectively arranged corresponding to the leg support plates or the chair back plates, the two shaft lock assemblies are in pairs, the switch plate of each pair of shaft lock assemblies is respectively provided with a linkage block, the linkage block is provided with a through linkage groove, one end of the linkage rod penetrates through the linkage groove, the linkage rod is positioned at one side of the linkage groove close to the armrest box and is assembled with the first linkage rod ring, the first linkage rod ring cannot penetrate through the linkage groove, the other end of the linkage rod is assembled with one side of the linkage member, the two linkage rods of the same pair of shaft lock assemblies are respectively assembled with two sides of the linkage member, and the linkage member is assembled with the support in a circumferential rotation manner through a linkage member shaft.

9. The deformation chair according to claim 8, wherein a second link ring is arranged at the position corresponding to the outer side of the link groove of each link rod, and the second link ring cannot pass through the link groove;

The other end of the linkage rod penetrates out of the catheter and then is assembled with one side of the linkage piece, the catheter is fixedly arranged on the bracket, and the linkage rod can axially slide relative to the catheter.

10. The deformable chair of claim 5 wherein the armrest box further comprises a stop block for limiting the rotation of the leg rest to a maximum angle parallel to the seat plate.