阅读说明：本技术 一种核磁共振病人转运车 (Nuclear magnetic resonance patient transfer car (buggy) ) 是由 桑凌峰 王浩吉 李正刚 杨永帅 陈罡 于 2021-10-15 设计创作，主要内容包括：本发明属于医疗器械技术领域,具体涉及一种核磁共振病人转运车,包括车架、床架、床架升降机构、刹车机构以及面板移动机构,面板移动机构包括：链轮轴、两主动链轮、两从动链轮、链条定位安装块、卷筒架以及面板；床架的前后两端的上部固定安装有滑道板,滑道板内并列安装有多个第一滑动辊,面板的前后两端固定有面板支撑条,面板支撑条内并列设置有多个第二滑动辊；第一滑动辊与面板支撑条的侧面接触,第二滑动辊与滑道板的上下侧面接触；面板的宽度大于床架的宽度。本发明采用手摇动链轮轴的方式能够带动面板轻松移动,完成病人在转运车和病床之间的转移。可以与核磁共振仪配合使用,大大减少了病人转移到核磁共振仪上的时间。(The invention belongs to the technical field of medical instruments, and particularly relates to a nuclear magnetic resonance patient transfer trolley, which comprises a trolley frame, a bedstead lifting mechanism, a brake mechanism and a panel moving mechanism, wherein the panel moving mechanism comprises: the chain wheel shaft, the two driving chain wheels, the two driven chain wheels, the chain positioning and mounting block, the winding drum frame and the panel; the upper parts of the front end and the rear end of the bedstead are fixedly provided with a slideway plate, a plurality of first sliding rollers are arranged in the slideway plate in parallel, panel supporting bars are fixed at the front end and the rear end of the panel, and a plurality of second sliding rollers are arranged in the panel supporting bars in parallel; the first sliding roller is contacted with the side surface of the panel supporting bar, and the second sliding roller is contacted with the upper side surface and the lower side surface of the slideway plate; the width of the panel is larger than that of the bed frame. The invention adopts a mode of manually operating the chain wheel shaft to drive the panel to move easily, and the transfer of the patient between the transfer trolley and the sickbed is completed. Can be used in conjunction with an NMR spectrometer, greatly reducing the time for transferring the patient to the NMR spectrometer.)

1. A nuclear magnetic resonance patient transfer car (buggy), its characterized in that: including frame (1), setting up and being in bedstead (3) on frame (1) upper portion, set up in frame (1) with be used for adjusting between bedstead (3) the bedstead elevating system of bedstead (3) height, be used for brake mechanism and the panel moving mechanism to four universal wheels (2) brake simultaneously, the panel moving mechanism includes: the chain wheel shaft (27) is rotatably connected to the bedstead (3), the two driving chain wheels (28) are symmetrically and fixedly installed at two ends of the chain wheel shaft (27), the two driven chain wheels (29) are respectively in transmission connection with the two driving chain wheels (28) through a first chain (61), the chain positioning and installing block (30) is fixed on the first chain (61), the winding drum frame (31) is fixedly connected with the chain positioning and installing block (30), and the panel (32) is fixed on the winding drum frame (31); the upper parts of the front end and the rear end of the bedstead (3) are fixedly provided with a slideway plate (33), the panel (32) is connected in the slideway plate (33) in a sliding manner, a plurality of vertically arranged first sliding rollers (34) are arranged in the slideway plate (33) in parallel, the front end and the rear end of the panel (32) are fixed with panel supporting bars (35), and a plurality of horizontally arranged second sliding rollers (36) are arranged in the panel supporting bars (35) in parallel; the first sliding roller (34) is contacted with the side surface of the panel supporting bar (35), and the second sliding roller (36) is contacted with the upper side surface and the lower side surface of the slideway plate (33); the width of the panel (32) is greater than the width of the bed base (3).

2. The nuclear magnetic resonance patient transfer cart of claim 1, wherein: install on same preceding pivot (20) two preceding universal wheel (2), install on same rear axle (21) two following universal wheel (2), preceding pivot (20) with rear axle (21) are the square shaft, and brake mechanism includes: the brake device comprises a brake rotating shaft (22) rotatably connected to the frame (1), a central control wheel swing rod (23) fixedly connected to the middle of the brake rotating shaft (22), a front brake connecting rod (24) rotatably connected to one end of the central control wheel swing rod (23), and a rear brake connecting rod (25) rotatably connected to the other end of the central control wheel swing rod (23); the front end of the front brake connecting rod (24) is rotationally connected with the front rotating shaft (20), and the rear end of the rear brake connecting rod (25) is rotationally connected with the rear rotating shaft (21); one end of the brake rotating shaft (22) penetrates out of a side plate of the frame (1) and then is provided with a brake pedal (26).

3. The nmr patient transfer cart of claim 2, wherein: the bedstead lifting mechanism comprises a lower fixed rod (4) fixedly arranged on the frame (1), a lower fixed rod (5) slidably arranged with the frame (1), an upper fixed rod (6) fixedly arranged on the bedstead (3) and an upper fixed rod (7) slidably arranged with the bedstead (3), wherein the lower fixed rod (4), the lower fixed rod (5), the upper fixed rod (6) and the upper fixed rod (7) form a parallelogram structure; the lower fixing rod (4) is connected with the upper sliding rod (7) through two first connecting rods (8) which are parallel to each other, the upper fixing rod (6) is connected with the lower sliding rod (5) through two second connecting rods (9) which are parallel to each other, the fixing rod (4), the lower sliding rod (5), the upper fixing rod (6) and the upper sliding rod (7) are rotationally connected with the first connecting rods (8) or the second connecting rods (9), lower guide pipes (13) are symmetrically fixed on the left side and the right side of the frame (1), and two ends of the lower sliding rod (5) are connected with the lower guide pipes (13) on two sides in a sliding mode; the left side and the right side of the bedstead (3) are symmetrically fixed with upper guide pipes (14), and two ends of the upper sliding rod (7) are connected on the upper guide pipes (14) at two sides in a sliding manner.

4. A nuclear magnetic resonance patient transfer cart according to claim 3, characterized in that: the bedstead lifting mechanism further comprises a bevel gear driving rod (15) installed on the bedstead (3) through a bearing, a driving bevel gear (16) installed on the bevel gear driving rod (15), a driven bevel gear (17) meshed with the driving bevel gear (16), a lead screw (18) connected to an output shaft of the driven bevel gear (17), and a nut sliding block (19) spirally sleeved on the lead screw (18), wherein the nut sliding block (19) is fixedly installed on the upper sliding rod (7).

5. The NMR patient transfer cart of claim 4, wherein: the middle of the first connecting rod (8) on the left side is rotatably connected with the middle of the second connecting rod (9) on the left side through a pin shaft, the middle of the first connecting rod (8) on the right side is rotatably connected with the middle of the second connecting rod (9) on the right side through a pin shaft, two ends of the two parallel first connecting rods (8) are fixedly connected through a first positioning pipe (10), and two ends of the two parallel second connecting rods (9) are fixedly connected through a second positioning pipe (11); a bed body balance spring is connected between the first positioning tube (10) positioned below and the second positioning tube (11) positioned below.

6. The nuclear magnetic resonance patient transfer cart of claim 1, wherein: still including sheltering from the mechanism, shelter from the mechanism and include: a sealing plate transverse tube (62) fixedly arranged at the upper part of the rolling cylinder frame (31), an upper guide roller (63) and a lower guide roller (64) fixedly arranged at the left side of the bedstead (3), two lower right guide rollers (65) and an upper right guide roller (66) which are fixedly arranged at the right side of the bedstead (3) in parallel, and a sealing plate fixing shaft (67) fixedly arranged at the lower part of the rolling cylinder frame (31); the sealing plate transverse tube (62), the lower side guide roller (64), the upper side guide roller (63), the lower right side guide roller (65), the upper right side guide roller (66) and the sealing plate fixing shaft (67) are arranged in parallel; one end of a strap with shrouding violently manages (62) fixed connection, then walks around in proper order go up deflector roll (63), lower deflector roll (64) right side guide roll (65) down and pass right side guide roll (65) down with go up behind the gap between right side guide roll (66), the other end fixed connection of strap (68) is in on shrouding fixed axle (67).

7. The nuclear magnetic resonance patient transfer cart of claim 6, wherein: still include the conveyer belt motion, the conveyer belt motion include through the bearing rotate install go up winding reel (37) on winding reel frame (31) that the bisymmetry set up and with go up winding reel (37) parallel arrangement's lower winding reel (38), the right-hand member of winding reel (38) and right-hand member down winding reel frame (31) are connected through the bearing, the front end of winding reel (38) is connected with through the clutch and is taken drive gear (39) down, fixed mounting has chain bracket (40) on bedstead (3), be fixed with second chain (41) that the left right direction extends on chain bracket (40), take drive gear (39) selective with second chain (41) meshing or break away from.

8. The nmr patient transfer cart of claim 7, wherein: the bedstead (3) is fixedly provided with a chain bracket (40), and the second chain (41) is fixedly arranged on the bedstead (3) through the chain bracket (40).

9. The nmr patient transfer cart of claim 8, wherein: the winding drum is characterized by further comprising a vertical rod (43) arranged on the side surface of the panel (32), the lower end of the vertical rod (43) is fixedly connected with a clutch swinging plate (45), and the vertical rod (43) is rotatably connected with the winding drum frame (31); a swing plate shaft frame (46) is fixedly connected to the reel frame (31), a swing plate (47) is rotatably connected to the swing plate shaft frame (46), a bullseye universal bearing (48) is mounted on the clutch swing plate (45), an arc groove (471) is formed in the front side surface of the swing plate (47), and bullseye of the bullseye universal bearing (48) abuts against the arc groove (471); the front end of the belt driving gear (39) is fixed with a clutch convex disc (49), and the clutch convex disc (49) abuts against the back side face of the swinging plate (47).

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a nuclear magnetic resonance patient transfer trolley.

Background

For patients who cannot move autonomously, such as cerebral palsy and the like, when nuclear magnetic resonance examination is performed, the patients need to be transferred from an original sickbed, then the patients need to be transferred to a nuclear magnetic resonance room, and finally the patients lie down on the bed special for the nuclear magnetic resonance examination in a holding manner.

Because the special bed for nuclear magnetic resonance is required to have no magnetism, a common transfer bed with a motor cannot directly enter a nuclear magnetic resonance room, and the motor fails when meeting a magnetic field, so that the existing sickbed or transfer bed cannot be directly suitable for a nuclear magnetic resonance instrument, and finally a patient still needs to lie on the special bed matched with the nuclear magnetic resonance instrument to perform nuclear magnetic resonance examination.

Disclosure of Invention

The invention aims to overcome the defects that the patient transfer speed is low, secondary damage is easily caused to the patient and the existing patient transfer bed cannot work in a nuclear magnetic resonance chamber in the prior art, and provides a nuclear magnetic resonance patient transfer trolley which can be directly matched with a nuclear magnetic resonance instrument for use and does not need to manually move the patient.

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

a nuclear magnetic resonance patient transfer car (buggy), its characterized in that: including the frame, set up and be in the bedstead on frame upper portion, set up in the frame with be used for adjusting between the bedstead elevating system of bedstead height, be used for brake mechanism and panel moving mechanism to four universal wheels brake simultaneously, panel moving mechanism includes: the chain wheel shaft is rotatably connected to the bedstead, the two driving chain wheels are symmetrically and fixedly installed at two ends of the chain wheel shaft, the two driven chain wheels are respectively in transmission connection with the two driving chain wheels through a first chain, the chain positioning and installing block is fixed on the first chain, the winding drum frame is fixedly connected with the chain positioning and installing block, and the panel is fixed on the winding drum frame; the upper parts of the front end and the rear end of the bedstead are fixedly provided with a slideway plate, the panel is connected in the slideway plate in a sliding manner, a plurality of vertically arranged first sliding rollers are arranged in the slideway plate in parallel, panel supporting bars are fixed at the front end and the rear end of the panel, and a plurality of transversely arranged second sliding rollers are arranged in the panel supporting bars in parallel; the first sliding roller is contacted with the side surface of the panel supporting bar, and the second sliding roller is contacted with the upper side surface and the lower side surface of the slideway plate; the width of the panel is greater than the width of the bed frame.

Further, the universal wheel in front of two is installed in same preceding pivot, and the universal wheel in back of two is installed in same rear shaft, preceding pivot with rear shaft is the square shaft, and brake mechanism includes: the brake device comprises a brake rotating shaft, a central control wheel swing rod, a front brake connecting rod and a rear brake connecting rod, wherein the brake rotating shaft is rotatably connected to the frame, the central control wheel swing rod is fixedly connected to the middle of the brake rotating shaft, the front brake connecting rod is rotatably connected to one end of the central control wheel swing rod, and the rear brake connecting rod is rotatably connected to the other end of the central control wheel swing rod; the front end of the front brake connecting rod is rotationally connected with the front rotating shaft, and the rear end of the rear brake connecting rod is rotationally connected with the rear rotating shaft; and one end of the brake rotating shaft penetrates out of the side plate of the frame and then is provided with a brake pedal.

Further, the bedstead lifting mechanism comprises a lower fixed rod fixedly installed on the frame, a lower fixed rod slidably installed with the frame, an upper fixed rod fixedly installed on the bedstead, and an upper fixed rod slidably installed with the bedstead, wherein the lower fixed rod, the upper fixed rod, and the upper fixed rod form a parallelogram structure; the lower fixed rod is connected with the upper sliding rod through two first connecting rods which are parallel to each other, the upper fixed rod is connected with the lower sliding rod through two second connecting rods which are parallel to each other, the fixed rod, the lower sliding rod, the upper fixed rod and the upper sliding rod are rotationally connected with the first connecting rods or the second connecting rods, the left side and the right side of the frame are symmetrically fixed with lower guide pipes, and two ends of the lower sliding rod are connected with the lower guide pipes on two sides in a sliding manner; the left side and the right side of the bed frame are symmetrically fixed with upper guide tubes, and two ends of the upper sliding rod are connected to the upper guide tubes at two sides in a sliding manner.

Furthermore, the bedstead elevating mechanism also comprises a bevel gear driving rod arranged on the bedstead through a bearing, a driving bevel gear arranged on the bevel gear driving rod, a driven bevel gear meshed with the driving bevel gear, a lead screw connected to an output shaft of the driven bevel gear, and a nut sliding block spirally sleeved on the lead screw, wherein the nut sliding block is fixedly arranged on the upper sliding rod.

Furthermore, the middle of the first connecting rod on the left side is rotatably connected with the middle of the second connecting rod on the left side through a pin shaft, the middle of the first connecting rod on the right side is rotatably connected with the middle of the second connecting rod on the right side through a pin shaft, two ends of the two parallel first connecting rods are fixedly connected through a first positioning pipe, and two ends of the two parallel second connecting rods are fixedly connected through a second positioning pipe; a bed body balance spring is connected between the first positioning tube positioned below and the second positioning tube positioned below.

Further, still include sheltering from the mechanism, shelter from the mechanism and include: the horizontal sealing plate tube is fixedly arranged at the upper part of the winding drum frame, the upper side guide roller and the lower side guide roller are fixedly arranged at the left side of the bedstead, the two lower right side guide rollers and the two upper right side guide rollers which are arranged in parallel are fixedly arranged at the right side of the bedstead, and the fixing shaft of the sealing plate is fixedly arranged at the lower part of the winding drum frame; the sealing plate transverse tube, the lower side guide roller, the upper side guide roller, the lower right side guide roller, the upper right side guide roller and the sealing plate fixing shaft are arranged in parallel; one end of a strap with horizontal pipe fixed connection is violently managed to the shrouding, then walk around in proper order go up the deflector roll lower side deflector roll lower right side deflector roll passes down the right side deflector roll with go up behind the gap between the right side deflector roll, the other end fixed connection of strap is in on the shrouding fixed axle.

Further, still include the conveyer belt motion, the conveyer belt motion include through the bearing rotate install on the reel frame that the bisymmetry set up go up the winding pipe and with go up winding pipe parallel arrangement's lower winding pipe, the rear end and the rear end of winding pipe down the reel frame passes through the bearing and is connected, the front end of winding pipe is connected with through the clutch and takes drive gear down, fixed mounting has the chain bracket on the bedstead, be fixed with the second chain that the left and right directions extends on the chain bracket, take drive gear selectivity with the meshing of second chain or break away from.

Further, a chain bracket is fixedly mounted on the bed frame, and the second chain is fixedly mounted on the bed frame through the chain bracket.

Furthermore, the panel comprises a vertical rod arranged on the side surface of the panel, the lower end of the vertical rod is fixedly connected with a clutch swinging plate, and the vertical rod is rotatably connected with the winding drum rack; a swinging plate shaft frame is fixedly connected to the winding drum frame, a swinging plate is rotatably connected to the swinging plate shaft frame, a bull eye universal bearing is mounted on the clutch swinging plate, an arc-shaped groove is formed in the front side surface of the swinging plate, and a bull eye of the bull eye universal bearing abuts against the arc-shaped groove; the front end with the driving gear is fixedly provided with a clutch convex disc which is abutted against the back side surface of the swinging plate.

The manual patient transfer trolley and the method for transferring the patient have the advantages that:

1. in order to ensure the safety and the service life of the transfer trolley, the invention adopts a mode of manually cranking the chain wheel shaft to drive the panel simultaneously to complete the transfer of the patient between the transfer trolley and the sickbed, and the transfer can be completed by only one person. Can directly push away patient in the nuclear magnetic resonance appearance through the transfer car (buggy), use with the nuclear magnetic resonance appearance cooperation, the time that has significantly reduced patient and has shifted to the nuclear magnetic resonance appearance, and patient only need lie flat in whole handling just, and it is stable to alleviate, can not cause secondary damage to patient's wound. The width of the panel is larger than that of the bed frame, so that the panel can be partially pressed above the sickbed when the sickbed is in butt joint, the sickbed is convenient to butt joint with the panel, the transfer safety of a patient is guaranteed on one hand, and the height of a transfer trolley is convenient to adjust on the other hand.

2. Through first sliding roller and second sliding roller sliding connection between panel and the slide way board, frictional force has reduced greatly for the operator is light to wave the sprocket shaft and just can shift patient.

3. The vertical rod is pulled to drive the eyelet universal bearing to rotate, and then the swinging plate is pushed to swing, so that the belt driving gear is disengaged or meshed with the second chain, the operation is convenient, and the panel can be selected to move independently or the panel and the conveying belt move simultaneously through the clutch device.

4. The shielding mechanism is arranged, the distance of the rightward movement of the panel is compensated in real time by the cloth belt between the transverse pipe of the sealing plate and the upper guide roller, and parts below the panel cannot be seen all the time in the use process of the transfer trolley, so that the safety of a user is enhanced, and the phenomenon that the operation of the transfer trolley is influenced by the falling of fine and broken articles into the transfer trolley is prevented.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a lowered view of the reversible armrest assembly of an embodiment of the present invention;

FIG. 2 is a view of the reversible armrest assembly of an embodiment of the present invention in a post-erection state;

FIG. 3 is a view showing the structure of a panel moving mechanism and a belt moving mechanism according to an embodiment of the present invention;

FIG. 4 is a view of the belt drive gear and second chain clutch portion of the embodiment of the present invention;

FIG. 5 is a view of a bull's eye universal bearing according to an embodiment of the present invention;

FIG. 6 is a partial block diagram of an embodiment of the present invention;

FIG. 7 is a schematic view of a conveyor belt movement mechanism according to an embodiment of the invention;

FIG. 8 is a bottom perspective view of an embodiment of the present invention;

FIG. 9 is a bottom view of a portion of the structure of an embodiment of the present invention;

fig. 10 is a perspective view of a bed frame lifting mechanism according to an embodiment of the present invention;

FIG. 11 is a partial block diagram of a reversible armrest assembly in accordance with an embodiment of the present invention;

FIG. 12 is a view showing a structure of a shielding mechanism according to an embodiment of the present invention.

In the figure, 1, a frame, 2, a universal wheel, 3, a bed frame, 4, a lower fixing rod, 5, a lower sliding rod, 6, an upper fixing rod, 7, an upper sliding rod, 8, a first connecting rod, 9, a second connecting rod, 10, a first positioning pipe, 11, a second positioning pipe, 13, a lower guide pipe, 14, an upper guide pipe, 15, a bevel gear driving rod, 16, a driving bevel gear, 17, a driven bevel gear, 18, a screw rod, 19, a nut slider, 20, a front rotating shaft, 21, a rear rotating shaft, 22, a brake rotating shaft, 23, a center control wheel swing rod, 24, a front brake connecting rod, 25, a rear brake connecting rod, 26, a brake pedal, 27, a sprocket shaft, 28, a driving sprocket, 29, a driven sprocket, 30, a chain positioning and mounting block, 31, a reel frame, 32, a panel, 33, a slideway plate, 34, a first sliding roller, 35, a panel supporting bar, 36, a second sliding roller, 37, an upper winding belt pipe, 38, a lower winding belt pipe, 39. the belt-driven type folding device comprises a belt driving gear, 40, a chain bracket, 41, a second chain, 42, a conveying belt, 43, a vertical rod, 44, a cross rod, 45, a clutch swinging plate, 46, a swinging plate shaft frame, 47, a swinging plate, 471, an arc-shaped groove, 48, a bull eye universal bearing, 49, a clutch convex disc, 50, a first overturning connecting rod, 51, a handrail side plate, 52, an upper handrail rod, 53, a lower handrail rod, 54, an upper fixing shaft, 55, a lower fixing shaft, 56, a second overturning connecting rod, 561, a clamping groove, 57, a secondary guardrail, 58, a stopper block, 59, a positioning block, 60, a film coating cylinder, 61, a first chain, 62, a transverse pipe sealing plate, 63, an upper guide roller, 64, a lower guide roller, 65, a lower right guide roller, 66, an upper right guide roller, 67, a fixing shaft sealing plate, 68 and a cloth belt.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", etc., refer to the directions of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.

In this embodiment, the left-right direction shown in fig. 2 is referred to as "left" or "right" in this specification, and the end close to the reader is referred to as "front" and the end far from the reader is referred to as "rear".

An embodiment of the present invention as shown in fig. 1-12 is a nuclear magnetic resonance patient transfer cart, comprising: the bed frame comprises a frame 1, universal wheels 2 positioned at four corners of the frame 1, a bed frame 3 arranged at the upper part of the frame 1, a bed frame lifting mechanism arranged between the frame 1 and the bed frame 3 and used for adjusting the height of the bed frame 3, a brake mechanism used for simultaneously braking the four universal wheels 2 and a patient carrying mechanism; referring to fig. 9 and 10, the bed frame lifting mechanism includes a lower fixing rod 4 fixedly mounted on the frame 1, a lower sliding rod 5 slidably mounted with the frame 1, an upper fixing rod 6 fixedly mounted on the bed frame 3, and an upper sliding rod 7 slidably mounted with the bed frame 3, wherein the lower fixing rod 4, the lower sliding rod 5, the upper fixing rod 6, and the upper sliding rod 7 form a parallelogram structure, the lower fixing rod 4 is connected with the upper sliding rod 7 through two first connecting rods 8 parallel to each other, the upper fixing rod 6 is connected with the lower sliding rod 5 through two second connecting rods 9 parallel to each other, the middle of the first connecting rod 8 on the left side is rotatably connected with the second connecting rod 9 on the left side through a pin shaft, the middle of the first connecting rod 8 on the right side is rotatably connected with the second connecting rod 9 on the right side through a pin shaft, and two ends of the first connecting rods 8 parallel to each other are fixedly connected through a first positioning pipe 10, two ends of two parallel second connecting rods 9 are fixedly connected through a second positioning pipe 11; a bed body balance spring (not shown) is connected between the first positioning tube 10 positioned below and the second positioning tube 11 positioned below; the lower fixing rod 4, the lower sliding rod 5, the upper fixing rod 6 and the upper sliding rod 7 are rotatably connected with the first connecting rod 8 or the second connecting rod 9, the left side and the right side of the frame 1 are symmetrically fixed with lower guide pipes 13, and two ends of the lower sliding rod 5 are slidably connected with the lower guide pipes 13 on the two sides; the upper guide tubes 14 are symmetrically fixed on the left and right sides of the bed frame 3, and both ends of the upper slide rod 7 are slidably connected to the upper guide tubes 14 on both sides. The bedstead lifting mechanism also comprises a bevel gear driving rod 15 which is arranged on the bedstead 3 through a bearing, a driving bevel gear 16 which is arranged on the bevel gear driving rod 15, a driven bevel gear 17 which is meshed with the driving bevel gear 16, a lead screw 18 which is connected on an output shaft of the driven bevel gear 17, and a nut sliding block 19 which is spirally sleeved on the lead screw 18, wherein the nut sliding block 19 is fixedly arranged on the upper sliding rod 7. The end part of the bevel gear driving rod 15 is of a polygonal columnar structure, the end part of the gear driving rod penetrates out of or is exposed out of a side plate of the bedstead 3, the bevel gear driving rod 15 is manually operated after the bevel gear driving rod is sleeved on the polygonal columnar structure through a crank handle, then the screw rod 18 is driven to rotate, the nut slider 19 is further driven to move, and the upper sliding rod 7 and the lower sliding rod 5 can move simultaneously to achieve lifting of the height of a sickbed. The bed body balance spring is always in a stretching state to balance the weight of the sickbed, so that the height of the bed body is kept unchanged after the height of the bed body is adjusted.

Referring to fig. 8, two front universal wheels 2 are installed on the same front rotating shaft 20, two rear universal wheels 2 are installed on the same rear rotating shaft 21, in this embodiment, the front rotating shaft 20 and the rear rotating shaft 21 are both square shafts, and the brake mechanism includes: a brake rotating shaft 22 rotatably connected to the frame 1, a center control wheel swing rod 23 fixedly connected to the middle part of the brake rotating shaft 22, a front brake connecting rod 24 rotatably connected to one end of the center control wheel swing rod 23, and a rear brake connecting rod 25 rotatably connected to the other end of the center control wheel swing rod 23; the front end of the front brake connecting rod 24 is rotatably connected with the front rotary shaft 20, and the rear end of the rear brake connecting rod 25 is rotatably connected with the rear rotary shaft 21. One end of the brake rotating shaft 22 penetrates out of a side plate of the frame 1 and then is provided with a brake pedal 26, the brake pedal 26 is arranged on the left side or the right side of the transfer trolley, braking in three modes is realized by stepping the brake pedal 26 with feet to rotate by different angles, and under the condition of normal movement, the universal wheel 2 can rotate by 360 degrees to drive the transfer trolley to move and rotate in any direction; when the brake pedal 26 is stepped on for an angle, the rotation of the universal wheel 2 around the vertical rotating shaft is limited, and only the transfer trolley can be driven to move linearly; the pedals are continuously treaded and killed by a larger angle, so that the universal wheels 2 are braked, and the transfer trolley can not move. Synchronous brake control of the front universal wheel 2 and the rear universal wheel 2 can be realized simultaneously through the brake mechanism of the embodiment.

Patient handling mechanism includes: panel motion, conveyer belt motion, tectorial membrane mechanism, guardrail subassembly and can overturn handrail subassembly. Referring to fig. 3, the panel moving mechanism includes: a sprocket shaft 27 rotatably connected to the frame 3, two driving sprockets 28 symmetrically and fixedly mounted at two ends of the sprocket shaft 27, two driven sprockets 29 respectively connected to the two driving sprockets 28 through a first chain 61, a chain positioning and mounting block 30 fixed to the first chain 61, a reel frame 31 fixedly connected to the chain positioning and mounting block 30, and a panel 32 fixed to the reel frame 31. The upper parts of the front end and the rear end of the bedstead 3 are fixedly provided with a slideway plate 33, the panel 32 is connected in the slideway plate 33 in a sliding way, a plurality of vertically arranged first sliding rollers 34 are arranged in the slideway plate 33 in parallel, the front end and the rear end of the panel 32 are fixed with a panel supporting bar 35, and a plurality of horizontally arranged second sliding rollers 36 are arranged in the panel supporting bar 35 in parallel; the first sliding roller 34 contacts with the side of the panel support bar 35, and the second sliding roller 36 contacts with the upper and lower sides of the slideway 33, so that the panel 32 is guided and friction is reduced during the sliding of the panel 32, and the panel 32 can be driven to move easily by shaking the chain wheel shaft 27 with a small force. The outer end of the sprocket shaft 27 protrudes from the frame 3 and has a polygonal columnar structure capable of being fitted with a crank. The crank drives the chain wheel shaft 27 to rotate and drive the panel 32 to move left and right.

Referring to fig. 6 and 7, the belt moving mechanism includes an upper winding belt tube 37 rotatably mounted on two symmetrically disposed winding drum frames 31 through bearings, and a lower winding belt tube 38 disposed parallel to the upper winding belt tube 37, a left end of the lower winding belt tube 38 is connected to the winding drum frame 31 at the left end through a bearing, a belt driving gear 39 is connected to a right end of the lower winding belt tube 38 through a clutch, a chain bracket 40 is fixedly mounted on the frame 3, a second chain 41 extending in the left-right direction is fixed to the chain bracket 40, and the belt driving gear 39 is selectively engaged with or disengaged from the second chain 41. One end of the belt 42 is wound around the upper winding pipe 37, and then is wound around the panel 32 to the lower winding pipe 38 below the panel 32. One end of the winding belt pipe 37 penetrates out of the front end or the rear end of the bedstead 3 and is provided with a polygonal columnar structure sleeved with the crank, so that the reset and tightness adjustment states of the conveying belt 42 are realized. The upper and lower winding pipes 37 and 38 are provided with springs so that the belt 42 wound thereon is always in a tight state.

The guardrail component and the turnover handrail component are respectively positioned at the left side and the right side of the bedstead 3,

referring to fig. 1, 2 and 12, the guardrail assembly comprises vertical rods 43 disposed at the front and rear ends of the bedstead 3 and a cross rod 44 lapped between the two vertical rods 43, the lower end of the vertical rod 43 is fixedly connected with a clutch swing plate 45, and the vertical rod 43 is rotatably connected with the reel frame 31; fixedly connected with balance staff pedestal 46 on reel frame 31, the last rotation of balance staff pedestal 46 is connected with balance staff 47, installs bull's eye universal bearing 48 on the separation and reunion balance staff 45, and balance staff 47's positive flank is arc recess 471, and bull's eye universal bearing 48's bull's eye leans on in the arc recess 471. The front end of the belt driving gear 39 is fixed with a clutch cam 49, and the clutch cam 49 abuts against the back side surface of the swing plate 47. Normally, the belt driving gear 39 is engaged with the second chain 41, and the winding of the upper winding belt tube 37 or the winding of the lower winding belt tube 38 is synchronously performed when the upper panel 32 moves. When the tape is not required to be taken up while the panel 32 is moved, the tape driving gear 39 may be disengaged from the second chain 41. At this time, the vertical rod 43 of the swing guardrail assembly needs to be operated manually, the vertical rod 43 drives the clutch swing plate 45 to swing, so that the eyelet universal bearing 48 moves in the arc-shaped groove 471, the swing plate 47 is further pushed to rotate inwards, the swing plate 47 pushes the clutch cam 49 and the belt driving gear 39 to move backwards, and finally the belt driving gear 39 is separated from the second chain 41.

Referring to fig. 1, 2 and 11, the convertible armrest assembly includes two first convertible connecting rods 50 symmetrically disposed at front and rear sides of the frame 3, armrest side plates 51 connected to ends of the first convertible connecting rods 50, and an upper armrest rod 52 and a lower armrest rod 53 connected between the armrest side plates 51; one end of the first turning connecting rod 50 is rotatably connected to the front and rear side surfaces of the bed frame 3 through an upper fixed shaft 54, the other end of the first turning connecting rod 50 is rotatably connected to the handrail side plates 51 through a lower fixed shaft 55, the front and rear side surfaces of the bed frame 3 are also rotatably connected to second turning connecting rods 56, the end of each second turning connecting rod 56 is rotatably connected to the handrail side plate 51, the upper handrail rod 52 is fixedly connected to the handrail side plate 51, and the lower handrail rod 53 is rotatably connected to the handrail side plate 51; an auxiliary guardrail 57 vertically arranged is fixed in the middle of the upper grab bar 52, a stop block 58 is fixed at the lower end of the auxiliary guardrail 57, the lower grab bar 53 passes through the middle of the stop block 58, and positioning blocks 59 are fixed at the two ends of the lower grab bar 53. The upper part of the second turnover connecting rod 56 is provided with a clamping groove 561, when the upper handrail rod 52 is pulled to move upwards, the second turnover connecting rod 56 and the first turnover connecting rod 50 rotate until the upper handrail rod 52 and the lower handrail rod 53 are pulled to be right above the panel 32, and the clamping groove 561 is clamped on the upper fixed shaft 54, so that the second turnover connecting rod 56 is positioned, and the whole turnover handrail assembly is prevented from turning downwards; at this time, the shift block is just abutted against the edge of the panel 32, and the lower grab bar 53 is rotated to make the positioning block 59 just abutted against the slide plate 33.

The right end of the slide way plate 33 extends out of the bed frame 3, and the width of the panel 32 is also larger than that of the bed frame 3, so that when the transfer trolley is in butt joint with a sickbed, a part of the panel 32 can extend out to be positioned above the sickbed, and bedding on the sickbed is pressed, and the bedding is prevented from sliding. The turnable armrest assembly is turned to the lower part of the bed frame 3 without affecting the lap joint of the panel 32 and the sickbed.

Referring to fig. 1 and 2, the film covering mechanism includes a film covering cylinder 60 rotatably installed at a lower portion of the frame 3, and a disposable film is wound on the film covering cylinder 60, wound over the conveyor belt 42, and attached over the conveyor belt 42, thereby preventing a patient from contaminating the conveyor belt 42 and maintaining the sanitation of the transfer cart.

The manual patient transfer trolley provided by the embodiment of the invention can be matched with a nuclear magnetic resonance instrument for use, and because the nuclear magnetic resonance chamber has a magnetic field, the parts of the manual patient transfer trolley provided by the embodiment of the invention are all made of demagnetized 304 stainless steel or aluminum pieces, so that the transfer trolley is ensured to be nonmagnetic, and because the magnetic field can cause the motor to fail, the movement of the manual patient transfer trolley provided by the embodiment of the invention is realized manually.

The working process of the embodiment of the invention is as follows:

step 1, butting the sickbed with a transfer trolley. The transfer trolley is placed in parallel with the sickbed, the side of the turnable handrail component is butted with the sickbed, the panel 32 is positioned right above the sickbed, the disposable film is pulled, a part of the film is left from the right side of the panel 32, and then the bevel gear driving rod 15 is sleeved in the crank to enable the bedstead 3 to descend until the lower side surface of the panel 32 is contacted with the sickbed.

And 2, transferring the patient from the sickbed to a transfer trolley. Rotate sprocket shaft 27 counterclockwise through the crank, first chain 61 drives panel 32 and moves to the right, take up the clockwise rotation on second chain 41 of tape tube 38 down this moment, go up tape tube 37 winding tape, take up tape tube 38 and unreel the area down, the conveyer belt 42 that lies in the panel 32 top moves to the left this moment, when panel 32 shovels patient from patient's being down, conveyer belt 42 transports patient gradually on panel 32 through the friction action, after patient lies in panel 32 completely, the montant 43 of pulling guardrail subassembly makes and takes drive gear 39 and second chain 41 to break away from, clockwise rotation sprocket shaft 27 drives panel 32 and resets the motion left this moment, conveyer belt 42 no longer moves. When the panel 32 is reset, the rotatable armrest assembly is pulled up, and the safety of the patient is guaranteed.

And 3, transporting the patient to a nuclear magnetic resonance room by using a transport vehicle and carrying out nuclear magnetic resonance examination. The transfer trolley is pushed to the nuclear magnetic resonance room, the transfer trolley can move straight or brake by stepping on the brake pedal 26 during operation, and the transfer trolley is directly pushed into the nuclear magnetic resonance detector to inspect a patient lying on the transfer trolley.

Step 4, transferring the patient from the transfer trolley to a sickbed, directly transferring the patient to the sickbed in the ward through the transfer trolley after the examination is finished, firstly placing the transfer trolley and the sickbed in parallel, positioning the panel 32 right above the sickbed, and rotating the bevel gear driving rod 15 to enable the bedstead 3 to descend until the lower side surface of the panel 32 is very close to the sickbed; the belt driving gear 39 is firstly separated from the second chain 41, the chain wheel shaft 27 is rotated anticlockwise through the crank to drive the panel 32 to move rightwards to the middle right position of the sickbed, then the belt driving gear 39 is meshed with the second chain 41, the chain wheel shaft 27 is rotated clockwise at the moment, the lower winding belt pipe 38 rotates anticlockwise, the lower winding belt pipe 38 winds the belt, the upper winding belt pipe 37 loosens the belt, the conveying belt 42 above the panel 32 moves rightwards, and therefore the conveying belt 42 gradually pushes the patient out of the panel 32 to the sickbed while the panel 32 moves leftwards, and the work of transferring the patient from the transfer trolley to the sickbed is completed.

The manual patient transfer trolley provided by the embodiment of the invention completely carries the patients without manual assistance, and can directly carry out nuclear magnetic resonance examination without changing beds, so that the examination time of a single patient is greatly shortened, the utilization efficiency of a nuclear magnetic resonance instrument is effectively improved, and the instrument purchase cost of a hospital is saved.

It can be seen from the whole transfer process that as the panel 32 moves rightwards, the frame 1 below the panel 32 can be leaked out, the attractiveness of the whole transfer vehicle is affected, meanwhile, small objects are easy to fall off to generate potential safety hazards, in order to solve the problems, the embodiment of the invention is also provided with a shielding mechanism capable of self-adapting to the movement of the panel 32, and the shielding mechanism comprises: the upper and lower guide rollers 63 and 64 are fixedly mounted on the left side of the frame 3, the lower and upper right guide rollers 65 and 66 are fixedly mounted on the right side of the frame 3, and the seal plate fixing shaft 67 is fixedly mounted on the lower portion of the frame 31. the seal plate cross tube 62, the lower guide roller 64, the upper guide roller 63, the lower and upper right guide rollers 65, the upper and lower right guide rollers 66 and the seal plate fixing shaft 67 are arranged in parallel. One end of a cloth belt is fixedly connected with the horizontal sealing plate pipe 62, then the cloth belt sequentially bypasses the upper guide roller 63, the lower guide roller 64 and the lower right guide roller 65 and passes through a gap between the lower right guide roller 65 and the upper right guide roller 66, and the other end of the cloth belt is fixedly connected to the sealing plate fixing shaft 67. Therefore, both ends of the cloth belt are fixed on the roller frame 31, in the moving process of the panel 32, the shortened distance between the sealing plate fixing shaft 67 and the lower right guide roller is exactly equal to the extended distance between the sealing plate transverse tube 62 and the upper guide roller 63, so that the length of the whole cloth belt is kept unchanged, the cloth belt between the sealing plate transverse tube 62 and the upper guide roller 63 compensates the distance of the right movement of the panel 32 in real time, parts below the panel 32 can not be seen all the time in the using process of the transfer trolley, the safety of a user is improved, and the phenomenon that the fine crushed goods fall into the transfer trolley and the operation of the transfer trolley is influenced is avoided.

It should be understood that the above-described specific embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Obvious variations or modifications which are within the spirit of the invention are possible within the scope of the invention.