阅读说明：本技术 一种能够自动和手动调节的移乘设备 (Transfer equipment capable of being automatically and manually adjusted ) 是由 张建华 张霖 李朝旭 李辉 谢家豪 于 2019-11-13 设计创作，主要内容包括：本发明公开了一种能够自动和手动调节的移乘设备,包括车体、车体升降机构和底盘；车体升降机构安装在底盘上,车体安装在车体升降机构上；所述车体升降机构包括剪式机构、第一传动机构和第二传动机构。该设备的关键技术在于集自动和手动于一体实现车体和靠背的升降,且通过滑移齿轮实现自动和手动传动之间的切换,操作方式灵活；整个装置只使用一台电机,简化了结构,降低了成本。该设备集轮椅和床于一体,将该设备与护理设备衔接,可以将使用者移动至该设备上,实现使用者的转移；通过抬升靠背以及放下侧板将该设备改变为轮椅形态,可实现使用者的运送,使用更加方便,实用性强。(The invention discloses transfer equipment capable of being automatically and manually adjusted, which comprises a car body, a car body lifting mechanism and a chassis, wherein the car body lifting mechanism is arranged on the car body; the vehicle body lifting mechanism is arranged on the chassis, and the vehicle body is arranged on the vehicle body lifting mechanism; the vehicle body lifting mechanism comprises a scissor mechanism, a first transmission mechanism and a second transmission mechanism. The key technology of the device is that the lifting of the vehicle body and the backrest is realized by integrating automation and manual operation, and the switching between automation and manual transmission is realized by a sliding gear, so that the operation mode is flexible; the whole device only uses one motor, simplifies the structure and reduces the cost. The equipment integrates a wheelchair and a bed, is connected with nursing equipment, and can move a user to the equipment to realize the transfer of the user; the wheelchair-shaped equipment is changed into a wheelchair shape by lifting the backrest and putting down the side plates, so that the transportation of a user can be realized, the use is more convenient, and the practicability is high.)

1. A transfer device capable of being automatically and manually adjusted comprises a vehicle body, a vehicle body lifting mechanism and a chassis; the vehicle body lifting mechanism is arranged on the chassis, and the vehicle body is arranged on the vehicle body lifting mechanism; the lifting mechanism of the vehicle body is characterized by comprising a scissor mechanism, a first transmission mechanism and a second transmission mechanism;

the shear type mechanism comprises two first sliding rods, a first connecting rod, a second sliding rod, a third connecting rod, a fourth connecting rod, a supporting rod, a first fixed block, a second fixed block, a third fixed block, a fourth fixed block, a first sliding block, a second sliding block, a third sliding block, a fourth sliding block and two second sliding rods;

the two first sliding rods are fixed on two sides of the chassis, and the two second sliding rods are fixed on two sides of the vehicle body; the middle parts of the first connecting rod and the second connecting rod are hinged together in a crossed manner, one end of the second connecting rod is hinged to the first fixed block to form a revolute pair, and the first fixed block is fixed at one end of a second sliding rod; the other end of the second connecting rod is hinged on the first sliding block to form a revolute pair, and the first sliding block is arranged on a first sliding rod to form a sliding pair; one end of the first connecting rod is hinged to the second fixed block to form a revolute pair, and the second fixed block is fixed to one end of the first sliding rod; the other end of the first connecting rod is hinged to the second sliding block to form a revolute pair, and the second sliding block is installed on a second sliding rod to form a sliding pair; the middle parts of the third connecting rod and the fourth connecting rod are hinged together in a crossed manner, one end of the third connecting rod is hinged to a third fixed block to form a revolute pair, and the third fixed block is fixed at one end of the other second sliding rod; the other end of the third connecting rod is hinged on the third sliding block to form a revolute pair, and the third sliding block is arranged on the other first sliding rod to form a moving pair; one end of a fourth connecting rod is hinged to a fourth fixed block to form a revolute pair, and the fourth fixed block is fixed to the other end of the other first sliding rod; the other end of the fourth connecting rod is hinged to the fourth sliding block to form a revolute pair, and the fourth sliding block is installed on the other second sliding rod to form a sliding pair; two ends of the supporting rod are fixed on the second sliding block and the fourth sliding block;

the first transmission mechanism comprises a motor, a motor fixing frame, a sliding gear box, a fifth sliding block, a first trapezoidal lead screw, a first gear, a second gear, a first transmission shaft, a second transmission shaft, a third gear, a fourth transmission shaft, a shifting fork and a third transmission shaft;

the second transmission mechanism comprises a second hand wheel, a bevel gear box frame, a bevel gear box, a fifth transmission shaft, a first bevel gear, a second bevel gear, a sixth transmission shaft, a first bearing seat and a hand-cranking wheel shaft;

the sliding gear box is fixed on the vehicle body, and a first transmission shaft, a second transmission shaft, a third transmission shaft and a fourth transmission shaft are respectively and rotatably arranged in the sliding gear box; a first gear is fixed on the first transmission shaft, a second gear is slidably mounted on the second transmission shaft, a third gear is fixed on the third transmission shaft, and a fourth gear meshed with the third gear is fixed on the fourth transmission shaft; one end of the shifting fork penetrates through the sliding gear box and is clamped on the second gear, the other end of the shifting fork is used for being held by hands and exposed outside the vehicle body, and the shifting fork is shifted to enable the second gear to be meshed with the first gear and the third gear respectively; one end of the fourth transmission shaft is fixedly connected with one end of a second trapezoidal screw of the vehicle body; one end of the second transmission shaft is fixedly connected with an output shaft of the motor, and the motor is fixed on the motor fixing frame; the motor fixing frame is fixed at one end of the two second sliding rods; an output shaft of the motor is parallel to the second sliding rod; the first transmission shaft is fixedly connected with one end of a first trapezoidal lead screw, the tail end of the first trapezoidal lead screw is fixedly connected with a fifth transmission shaft, a fifth sliding block is slidably mounted on the first trapezoidal lead screw, and the fifth sliding block is fixedly connected with the supporting rod;

the bevel gear box frame is fixed at the other ends of the two second sliding rods, a bevel gear box is fixed on the bevel gear box frame, a fifth transmission shaft is rotatably installed in the bevel gear box, and a first bevel gear is fixed on the fifth transmission shaft; the first bearing seat is fixed on the bevel gear box, the sixth transmission shaft is rotatably arranged on the first bearing seat, and a second bevel gear meshed with the first bevel gear is fixed on the sixth transmission shaft; the tail end of the sixth transmission shaft penetrates through the first bearing seat and is fixedly connected with one end of the hand-cranking wheel shaft, and the tail end of the hand-cranking wheel shaft penetrates through the second bearing seat and is fixed with a second hand wheel; and a bearing is arranged at the position where the hand-operated wheel shaft passes through the second bearing seat, and the second bearing seat is fixed on the vehicle body.

2. The transfer equipment capable of being automatically and manually adjusted according to claim 1, wherein the car body comprises a car frame, side plates, a fifth connecting rod, a sixth connecting rod, a seat plate, a second trapezoidal screw, a connecting rod, a backrest rotating shaft, a backrest supporting rod, a sixth sliding block, a seventh sliding block, a screw fixing frame, a first hand wheel and a clamping block;

the seat plate is fixed in the middle of the frame, one end of the side plate is hinged to the frame and located on one side of the seat plate, and the other end of the side plate is suspended in the air; the middle part of the side plate is hinged with one end of a sixth connecting rod, the other end of the sixth connecting rod is hinged with one end of a fifth connecting rod, the other end of the fifth connecting rod is hinged on a fixture block, and the fixture block is fixed at the corresponding position of the frame; the parts between the two hinged points of the side plate, the frame and the sixth connecting rod, the fifth connecting rod and the parts between the frame and the two hinged points of the fifth connecting rod and the side plate jointly form a planar four-bar mechanism, the sum of the length of the fifth connecting rod and the length between the two hinged points of the side plate, the frame and the sixth connecting rod is less than or equal to the sum of the length of the sixth connecting rod and the length between the frame and the two hinged points of the fifth connecting rod and the side plate, and the dead point position of the planar four-bar mechanism occurs when the fifth connecting rod and the sixth connecting rod are collinear;

the backrest rotating shaft is fixed on the frame, one end of the backrest is hinged to the backrest rotating shaft and is positioned on the other side of the seat plate, and the other end of the backrest is suspended in the air; two sides of the middle part of the backrest are respectively hinged with one end of the backrest support rod, and the other ends of the two backrest support rods are respectively hinged with a sixth sliding block; the two sixth sliding blocks are slidably arranged on two sides of the frame; two ends of the connecting rod are fixed on the two sixth sliding blocks, a seventh sliding block is fixed on the connecting rod, the seventh sliding block is slidably arranged on a second trapezoidal lead screw, the second trapezoidal lead screw is rotatably arranged on a lead screw fixing frame, and the lead screw fixing frame is fixed on the frame; one end of the second trapezoidal lead screw is fixedly connected with the fourth transmission shaft, and the tail end of the second trapezoidal lead screw is fixedly provided with a first hand wheel.

3. The automatically and manually adjustable transfer apparatus of claim 1, wherein a side wall of the glide gear box has a first, second, and third card slot; when the shifting fork is matched with the first clamping groove, the second gear is meshed with the first gear; when the shifting fork is matched with the second clamping groove, the second gear is not meshed with the first gear and the third gear; when the shifting fork is matched with the third clamping groove, the second gear is meshed with the third gear.

4. The transfer apparatus capable of automatic and manual adjustment according to claim 1, further comprising two armrest mechanisms installed at both sides of the vehicle body, respectively; the handrail mechanism comprises a handrail seat, a plurality of handrail support rods, a handrail, a first clamping piece, a second clamping piece, a third clamping piece and a spring; the armrest seat is fixed on one side of the vehicle body and is hinged with one end of a plurality of armrest supporting rods, and the other end of each armrest supporting rod is hinged with an armrest; a first clamping piece is fixed at the end part of the handrail, and one end of a second clamping piece is embedded in the first clamping piece; a spring is arranged in the first clamping piece, and two ends of the spring are respectively contacted with the first clamping piece and the second clamping piece; the pressing part and the inserting column at the other end of the second clamping piece are exposed outside the first clamping piece; the third clamping piece is fixed on the upper part of the handrail supporting rod, and a hole is formed in the third clamping piece and matched with the insertion column of the second clamping piece.

5. The automatically and manually adjustable transfer apparatus of claim 4, wherein the portion between the two hinge points of the armrest and the two adjacent armrest struts, and the portion between the two hinge points of the two adjacent armrest struts and the armrest seat together form a parallelogram structure.

6. The transfer equipment capable of being automatically and manually adjusted according to claim 1, wherein the hand wheel shaft comprises a first hand wheel shaft and a second hand wheel shaft, one end of the first hand wheel shaft is fixedly connected with the tail end of the sixth transmission shaft, the tail end of the first hand wheel shaft penetrates through the second bearing block and is fixedly connected with one end of the second hand wheel shaft through a bolt, and a second hand wheel is fixed at the tail end of the second hand wheel shaft.

7. The transfer apparatus capable of automatic and manual adjustment according to claim 1, wherein one end of the shift fork has a U-shaped groove, and the U-shaped groove is caught on the second gear.

8. The automatically and manually adjustable transfer apparatus of claim 1, wherein the second drive mechanism further comprises a disk coupled to an end surface of the second bearing housing.

Technical Field

The invention belongs to the technical field of rehabilitation instruments, and particularly relates to transfer equipment capable of being adjusted automatically and manually.

Background

The nursing of disabled persons mainly comprises the aspects of eating service, transportation and transportation, personal hygiene and cleanness and the like. The transfer and transportation means that a care recipient who is not convenient to move is transferred and moved from a place such as a bed, a sofa, or a vehicle to a wheelchair, which is an important part in nursing work. However, at present, no matter the nursing at home or the service institutions such as hospitals and nursing homes, the transfer and the transportation are mainly realized manually, so that not only is a great physical burden brought to nursing staff, but also the safety and the comfort of the nursed in the transfer and the transportation process cannot be guaranteed.

The Chinese patent with the application number of 201210330802.X discloses a manual multi-posture chair, which comprises an underframe, a cushion, a backrest and a foot support, wherein the adjustment of any angle of the backrest and the foot support is realized through a link mechanism, so that a plurality of human body postures of sitting, lying, reclining and the like of a human body are realized, and the manual multi-posture chair can be used as a simple bed and a multifunctional chair; but realize the fixing of back and foot rest in the optional position through link mechanism, stability is poor, can only pass through manual regulation moreover, because load is great when the user lies on the chair, manual regulation is more difficult, and the practicality is poor.

Disclosure of Invention

In view of the deficiencies of the prior art, the present invention addresses the problem of providing a transfer apparatus that is capable of automatic and manual adjustment.

The invention solves the technical problem by adopting the technical scheme that transfer equipment capable of being automatically and manually adjusted is provided, and comprises a car body, a car body lifting mechanism and a chassis; the vehicle body lifting mechanism is arranged on the chassis, and the vehicle body is arranged on the vehicle body lifting mechanism; the lifting mechanism of the vehicle body is characterized by comprising a scissor mechanism, a first transmission mechanism and a second transmission mechanism;

the shear type mechanism comprises two first sliding rods, a first connecting rod, a second sliding rod, a third connecting rod, a fourth connecting rod, a supporting rod, a first fixed block, a second fixed block, a third fixed block, a fourth fixed block, a first sliding block, a second sliding block, a third sliding block, a fourth sliding block and two second sliding rods;

the two first sliding rods are fixed on two sides of the chassis, and the two second sliding rods are fixed on two sides of the vehicle body; the middle parts of the first connecting rod and the second connecting rod are hinged together in a crossed manner, one end of the second connecting rod is hinged to the first fixed block to form a revolute pair, and the first fixed block is fixed at one end of a second sliding rod; the other end of the second connecting rod is hinged on the first sliding block to form a revolute pair, and the first sliding block is arranged on a first sliding rod to form a sliding pair; one end of the first connecting rod is hinged to the second fixed block to form a revolute pair, and the second fixed block is fixed to one end of the first sliding rod; the other end of the first connecting rod is hinged to the second sliding block to form a revolute pair, and the second sliding block is installed on a second sliding rod to form a sliding pair; the middle parts of the third connecting rod and the fourth connecting rod are hinged together in a crossed manner, one end of the third connecting rod is hinged to a third fixed block to form a revolute pair, and the third fixed block is fixed at one end of the other second sliding rod; the other end of the third connecting rod is hinged on the third sliding block to form a revolute pair, and the third sliding block is arranged on the other first sliding rod to form a moving pair; one end of a fourth connecting rod is hinged to a fourth fixed block to form a revolute pair, and the fourth fixed block is fixed to the other end of the other first sliding rod; the other end of the fourth connecting rod is hinged to the fourth sliding block to form a revolute pair, and the fourth sliding block is installed on the other second sliding rod to form a sliding pair; two ends of the supporting rod are fixed on the second sliding block and the fourth sliding block;

the first transmission mechanism comprises a motor, a motor fixing frame, a sliding gear box, a fifth sliding block, a first trapezoidal lead screw, a first gear, a second gear, a first transmission shaft, a second transmission shaft, a third gear, a fourth transmission shaft, a shifting fork and a third transmission shaft;

the second transmission mechanism comprises a second hand wheel, a bevel gear box frame, a bevel gear box, a fifth transmission shaft, a first bevel gear, a second bevel gear, a sixth transmission shaft, a first bearing seat and a hand-cranking wheel shaft;

the sliding gear box is fixed on the vehicle body, and a first transmission shaft, a second transmission shaft, a third transmission shaft and a fourth transmission shaft are respectively and rotatably arranged in the sliding gear box; a first gear is fixed on the first transmission shaft, a second gear is slidably mounted on the second transmission shaft, a third gear is fixed on the third transmission shaft, and a fourth gear meshed with the third gear is fixed on the fourth transmission shaft; one end of the shifting fork penetrates through the sliding gear box and is clamped on the second gear, the other end of the shifting fork is used for being held by hands and exposed outside the vehicle body, and the shifting fork is shifted to enable the second gear to be meshed with the first gear and the third gear respectively; one end of the fourth transmission shaft is fixedly connected with one end of a second trapezoidal screw of the vehicle body; one end of the second transmission shaft is fixedly connected with an output shaft of the motor, and the motor is fixed on the motor fixing frame; the motor fixing frame is fixed at one end of the two second sliding rods; an output shaft of the motor is parallel to the second sliding rod; the first transmission shaft is fixedly connected with one end of a first trapezoidal lead screw, the tail end of the first trapezoidal lead screw is fixedly connected with a fifth transmission shaft, a fifth sliding block is slidably mounted on the first trapezoidal lead screw, and the fifth sliding block is fixedly connected with the supporting rod;

the bevel gear box frame is fixed at the other ends of the two second sliding rods, a bevel gear box is fixed on the bevel gear box frame, a fifth transmission shaft is rotatably installed in the bevel gear box, and a first bevel gear is fixed on the fifth transmission shaft; the first bearing seat is fixed on the bevel gear box, the sixth transmission shaft is rotatably arranged on the first bearing seat, and a second bevel gear meshed with the first bevel gear is fixed on the sixth transmission shaft; the tail end of the sixth transmission shaft penetrates through the first bearing seat and is fixedly connected with one end of the hand-cranking wheel shaft, and the tail end of the hand-cranking wheel shaft penetrates through the second bearing seat and is fixed with a second hand wheel; and a bearing is arranged at the position where the hand-operated wheel shaft passes through the second bearing seat, and the second bearing seat is fixed on the vehicle body.

Compared with the prior art, the invention has the beneficial effects that:

1) the key technology of the device is that the lifting of the vehicle body and the backrest is realized by integrating automation and manual operation, and the switching between automation and manual transmission is realized by a sliding gear, so that the operation mode is flexible; the whole device only uses one motor, simplifies the structure and reduces the cost.

2) The wheelchair and the bed are integrated, the equipment is connected with the nursing equipment, and a user can be moved to the equipment to realize the transfer of the user; the wheelchair-shaped equipment is changed into a wheelchair shape by lifting the backrest and putting down the side plates, so that the transportation of a user can be realized, the use is more convenient, and the practicability is high.

3) The lifting device has certain self-locking performance and can be fixed at any position, so that equipment cannot fall due to overlarge load, and the safety of the equipment is ensured; the height of the car body can be adjusted at will, so that the equipment can be connected with nursing equipment with any height, and the applicability is stronger.

4) The handrail mechanism adopts a parallelogram structure, can realize the random conversion of the folding and using states of the handrail, and ensures the stability of the handrail.

5) The chassis of the invention can be driven by a universal wheel with a locking device, so that the equipment can turn at a smaller angle, and meanwhile, the equipment can be fixed when stopped in any state, and the sliding of the vehicle is prevented.

Drawings

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

FIG. 2 is a view showing the side panels and the backrest of the present invention in a flat state;

FIG. 3 is a view showing the use of the present invention with the side panels down and the backrest raised;

FIG. 4 is a schematic view of the back portion of the present invention;

FIG. 5 is a schematic structural view of the vehicle body lift mechanism of the present invention;

FIG. 6 is a schematic structural diagram of a first transmission mechanism of the present invention;

FIG. 7 is a schematic view of the fork of the present invention engaged with a slip gearbox;

FIG. 8 is a schematic view of the fork of the present invention;

FIG. 9 is a schematic structural view of a second transmission mechanism of the present invention;

FIG. 10 is a schematic view of the connection of a first hand wheel shaft to a second hand wheel shaft of the present invention;

FIG. 11 is a schematic view of the armrest mechanism of the present invention;

FIG. 12 is a schematic view of the connection of a first clip member to a second clip member of the present invention;

in the figure: 1. a vehicle body; 2. an armrest mechanism; 3. a vehicle body lifting mechanism; 4. a chassis;

1.1, a frame; 1.2, side plates; 1.3, a fifth connecting rod; 1.4, a sixth connecting rod; 1.5, a seat board; 1.6, a second trapezoidal lead screw; 1.7, connecting rods; 1.8, a backrest rotating shaft; 1.9, a backrest; 1.10, a backrest support rod; 1.11, a sixth slide block; 1.12, a seventh slide block; 1.13, lead screw fixing frame; 1.14, a first hand wheel; 1.15, a fixture block;

2.1, armrest seats; 2.2, a handrail support; 2.3, a handrail; 2.4, a first clamping piece; 2.5, a second clamping piece; 2.6, a third clamping piece; 2.7, a spring;

3.1, a second hand wheel; 3.2, a first slide bar; 3.3, a second fixed block; 3.4, a first sliding block; 3.5, a first connecting rod; 3.6, a second connecting rod; 3.7, a motor; 3.8, a motor bracket; 3.9, a first fixing block; 3.10, a slippage gearbox; 3.11, a second slide block; 3.12, a second slide bar; 3.13, a second bearing seat; 3.14, a fifth slide block; 3.15, a bevel gear box frame; 3.16, a first trapezoidal screw rod; 3.17, bevel gear box; 3.18, disc; 3.19, supporting rods; 3.20, a fourth slide block; 3.21, a fourth connecting rod; 3.22, a third fixing block; 3.23, a third connecting rod; 3.24, a third slide block; 3.25, a fourth fixed block; 3.26, a first gear; 3.27, a second gear; 3.28, a first transmission shaft; 3.29, a second transmission shaft; 3.30, a third gear; 3.31, a fourth gear; 3.32, a fourth transmission shaft; 3.33, a shifting fork; 3.34, a second hand cranking wheel shaft; 3.35, a third transmission shaft; 3.36, a fifth transmission shaft; 3.37, a first bevel gear; 3.38, a second bevel gear; 3.39, a sixth transmission shaft; 3.40, a first bearing seat; 3.41, a first hand wheel shaft; 3.42, a bolt;

2.5.1, a pressing part; 2.5.2, inserting columns; 2.6.1, holes; 3.10.1, a first card slot; 3.10.2, a second card slot; 3.10.3, a third card slot.

Detailed Description

Specific examples of the present invention are given below. The specific examples are only intended to illustrate the invention in further detail and do not limit the scope of protection of the claims of the present application.

The invention provides a transfer device (a transfer device for short, see figures 1-12) capable of being automatically and manually adjusted, which comprises a vehicle body 1, a vehicle body lifting mechanism 3 and a chassis 4; the chassis 4 is provided with a vehicle body lifting mechanism 3, and the vehicle body lifting mechanism 3 is provided with a vehicle body 1; the vehicle body lifting mechanism 3 is used for realizing the lifting of the vehicle body 1;

the vehicle body lifting mechanism 3 comprises a scissor mechanism, a first transmission mechanism and a second transmission mechanism; the lower part of the scissor mechanism is connected with the chassis 4, and the upper part of the scissor mechanism is connected with the frame 1.1 of the vehicle body 1 and used for realizing the lifting of the vehicle body 1; the first transmission mechanism is connected with the second transmission mechanism and is connected with a frame 1.1 of the vehicle body 1;

the scissor mechanism comprises two first sliding rods 3.2, a first connecting rod 3.5, a second sliding rod 3.12, a third connecting rod 3.23, a fourth connecting rod 3.21, a supporting rod 3.19, a first fixed block 3.9, a second fixed block 3.3, a third fixed block 3.22, a fourth fixed block 3.25, a first sliding block 3.4, a second sliding block 3.11, a third sliding block 3.24, a fourth sliding block 3.20 and two second sliding rods 3.12;

two first sliding rods 3.2 are fixed on two sides of the chassis 4, and two second sliding rods 3.12 are fixed on two sides of a frame 1.1 of the vehicle body 1; the middle parts of the first connecting rod 3.5 and the second connecting rod 3.6 are hinged together in a crossed manner, one end of the second connecting rod 3.6 is hinged on the first fixed block 3.9 to form a revolute pair, and the first fixed block 3.9 is fixed at one end of a second sliding rod 3.12; the other end of the second connecting rod 3.6 is hinged on the first sliding block 3.4 to form a revolute pair, and the first sliding block 3.4 is arranged on a first sliding rod 3.2 to form a moving pair; one end of the first connecting rod 3.5 is hinged on the second fixed block 3.3 to form a revolute pair, and the second fixed block 3.3 is fixed at one end of a first sliding rod 3.2; the other end of the first connecting rod 3.5 is hinged on a second sliding block 3.11 to form a revolute pair, and the second sliding block 3.11 is arranged on a second sliding rod 3.12 to form a moving pair; the middle parts of the third connecting rod 3.23 and the fourth connecting rod 3.21 are hinged together in a crossed manner, one end of the third connecting rod 3.23 is hinged on a third fixed block 3.22 to form a revolute pair, and the third fixed block 3.22 is fixed at one end of the other second sliding rod 3.12; the other end of the third connecting rod 3.23 is hinged on a third sliding block 3.24 to form a revolute pair, and the third sliding block 3.24 is arranged on the other first sliding rod 3.2 to form a moving pair; one end of a fourth connecting rod 3.21 is hinged on a fourth fixed block 3.25 to form a revolute pair, and the fourth fixed block 3.25 is fixed at the other end of the other first sliding rod 3.2; the other end of the fourth connecting rod 3.21 is hinged on the fourth sliding block 3.20 to form a revolute pair, and the fourth sliding block 3.20 is arranged on the other second sliding rod 3.12 to form a moving pair; two ends of the supporting rod 3.19 are fixed on the second sliding block 3.11 and the fourth sliding block 3.20, and the two slide blocks slide together;

the first transmission mechanism comprises a motor 3.7, a motor fixing frame 3.8, a sliding gear box 3.10, a fifth sliding block 3.14, a first trapezoidal lead screw 3.16, a first gear 3.26, a second gear 3.27, a first transmission shaft 3.28, a second transmission shaft 3.29, a third gear 3.30, a fourth gear 3.31, a fourth transmission shaft 3.32, a shifting fork 3.33 and a third transmission shaft 3.35;

the second transmission mechanism comprises a second hand wheel 3.1, a bevel gear box frame 3.15, a bevel gear box 3.17, a fifth transmission shaft 3.36, a first bevel gear 3.37, a second bevel gear 3.38, a sixth transmission shaft 3.39, a first bearing seat 3.40, a first hand-cranking wheel shaft 3.41 and a second hand-cranking wheel shaft 3.34;

the slippage gearbox 3.10 is fixed on a frame 1.1 of the vehicle body 1, and a first transmission shaft 3.28, a second transmission shaft 3.29, a third transmission shaft 3.35 and a fourth transmission shaft 3.32 are respectively arranged in the slippage gearbox 3.10 through bearings; a first gear 3.26 is fixed on the first transmission shaft 3.28, a second gear 3.27 is slidably mounted on the second transmission shaft 3.29, a third gear 3.30 is fixed on the third transmission shaft 3.35, and a fourth gear 3.31 meshed with the third gear 3.30 is fixed on the fourth transmission shaft 3.32; one end of the shifting fork 3.33 penetrates through the sliding gear box 3.10 and is clamped on the second gear 3.27, the other end of the shifting fork 3.33 is used for being held by hands and exposed outside the frame 1.1 of the vehicle body 1, and the second gear 3.27 is respectively meshed with the first gear 3.26 and the third gear 3.30 by shifting the shifting fork 3.33; when the shifting fork 3.33 is matched with the first clamping groove 3.10.1 of the sliding gear box 3.10, the second gear 3.27 is meshed with the first gear 3.26, and the motor 3.7 drives the second gear 3.27 to rotate, so that the first trapezoidal screw rod 3.16 rotates, and the automatic lifting of the vehicle body 1 is realized; when the shifting fork 3.33 is matched with the second clamping groove 3.10.2 of the sliding gear box 3.10, the second gear 3.27 is not meshed with the first gear 3.26 and the third gear 3.30, the first hand wheel 1.14 is manually rotated to enable the second trapezoidal lead screw 1.6 to rotate, and manual lifting of the vehicle body 1 and the backrest 1.9 of the vehicle body 1 is realized; when the shifting fork 3.33 is matched with the third clamping groove 3.10.3 of the sliding gear box 3.10, the second gear 3.27 is meshed with the third gear 3.30, and the motor 3.7 drives the second gear 3.27 to rotate, so that the second trapezoidal screw 1.6 rotates, and the automatic lifting of the backrest 1.9 of the vehicle body 1 is realized; one end of the fourth transmission shaft 3.32 is fixedly connected with one end of a second trapezoidal screw 1.6 of the vehicle body 1 through a coupler; one end of the second transmission shaft 3.29 is fixedly connected with an output shaft of the motor 3.7 through a coupler, and the motor 3.7 is fixed on the motor fixing frame 3.8; an output shaft of the motor 3.7 is parallel to the second slide bars 3.12, and a motor fixing frame 3.8 is fixed at one end of each of the two second slide bars 3.12 close to the first fixing block 3.9; the first transmission shaft 3.28 is fixedly connected with one end of the first trapezoidal lead screw 3.16 through a coupler, the tail end of the first trapezoidal lead screw 3.16 is fixedly connected with the fifth transmission shaft 3.36 through the coupler, the fifth slider 3.14 is slidably mounted on the first trapezoidal lead screw 3.16, the fifth slider 3.14 is fixedly connected with the support rod 3.19 at the same time, the support rod 3.19 is moved back and forth through the sliding of the fifth slider 3.14 on the first trapezoidal lead screw 3.16, and the lifting of the vehicle body 1 is further realized;

the bevel gear box frame 3.15 is fixed at one end, far away from the first fixed block 3.9, of the two second sliding rods 3.12, a bevel gear box 3.17 is fixed on the bevel gear box frame 3.15, a fifth transmission shaft 3.36 is installed in the bevel gear box 3.17 through a bearing, and a first bevel gear 3.37 is fixed on the fifth transmission shaft 3.36; the first bearing seat 3.40 is fixed on the bevel gear box 3.17, the sixth transmission shaft 3.39 is arranged on the first bearing seat 3.40 through a bearing, the sixth transmission shaft 3.39 is vertical to the fifth transmission shaft 3.36, and the sixth transmission shaft 3.39 is fixed with a second bevel gear 3.38 engaged with the first bevel gear 3.37; the tail end of the sixth transmission shaft 3.39 penetrates through the first bearing seat 3.40 and is fixedly connected with one end of a first hand-operated wheel shaft 3.41 through a coupler, the tail end of the first hand-operated wheel shaft 3.41 penetrates through the second bearing seat 3.13 and is fixedly connected with one end of a second hand-operated wheel shaft 3.34 through a bolt 3.42, a bearing is arranged at the position where the first hand-operated wheel shaft 3.41 penetrates through the second bearing seat 3.13, and the second bearing seat 3.13 is fixed on a frame 1.1 of the vehicle body 1; the tail end of the second hand-rocking wheel shaft 3.34 is fixed with a second hand wheel 3.1, and the second hand wheel 3.1 is manually rotated to enable the first trapezoidal screw 3.16 to rotate, so that the manual lifting of the vehicle body 1 is realized.

The vehicle body 1 comprises a vehicle frame 1.1, a side plate 1.2, a fifth connecting rod 1.3, a sixth connecting rod 1.4, a seat plate 1.5, a second trapezoidal screw 1.6, a connecting rod 1.7, a backrest rotating shaft 1.8, a backrest 1.9, a backrest supporting rod 1.10, a sixth sliding block 1.11, a seventh sliding block 1.12, a screw fixing frame 1.13, a first hand wheel 1.14 and a clamping block 1.15;

the seat plate 1.5 is fixed in the middle of the frame 1.1, one end of the side plate 1.2 is hinged to the frame 1.1 and is positioned on one side of the seat plate 1.5, and the other end of the side plate 1.2 is suspended in the air; the middle part of the side plate 1.2 is hinged with one end of a sixth connecting rod 1.4, the other end of the sixth connecting rod 1.4 is hinged with one end of a fifth connecting rod 1.3, the other end of the fifth connecting rod 1.3 is hinged with a fixture block 1.15, the fixture block 1.15 is fixed at a corresponding position of the frame 1.1, and the fixture block 1.15 limits the fifth connecting rod 1.3; the parts between two hinged points of the side plate 1.2 and the frame 1.1 and the sixth connecting rod 1.4, the fifth connecting rod 1.3 and the parts between two hinged points of the frame 1.1 and the fifth connecting rod 1.3 and the side plate 1.2 jointly form a plane four-bar mechanism, the sum of the length of the fifth connecting rod 1.3 and the length between two hinged points of the side plate 1.2 and the frame 1.1 and the sixth connecting rod 1.4 is less than or equal to the sum of the length of the sixth connecting rod 1.4 and the length between two hinged points of the frame 1.1 and the fifth connecting rod 1.3 and the side plate 1.2, and the plane four-bar mechanism has a dead point position when the fifth connecting rod 1.3 and the sixth connecting rod 1.4 are collinear, so that the side plate 1.2 is fixed when lifted;

the backrest rotating shaft 1.8 is fixed on the frame 1.1, one end of the backrest 1.9 is hinged to the backrest rotating shaft 1.8 and is positioned on the other side of the seat plate 1.5, and the other end of the backrest 1.9 is suspended; two sides of the middle part of the backrest 1.9 are respectively hinged with one end of the backrest support rod 1.10, and the other ends of the two backrest support rods 1.10 are respectively hinged with a sixth sliding block 1.11; the two sixth sliding blocks 1.11 are slidably arranged on two sides of the frame 1.1; two ends of the connecting rod 1.7 are fixed on the two sixth sliding blocks 1.11, a seventh sliding block 1.12 is fixed on the connecting rod 1.7, the seventh sliding block 1.12 is simultaneously slidably installed on a second trapezoidal lead screw 1.6, the second trapezoidal lead screw 1.6 is rotatably installed on a lead screw fixing frame 1.13, and the lead screw fixing frame 1.13 is fixed on the frame 1.1; one end of a second trapezoidal lead screw 1.6 is fixedly connected with a fourth transmission shaft 3.32 through a coupler, a first hand wheel 1.14 is fixed at the tail end of the second trapezoidal lead screw 1.6, and manual lifting of the backrest 1.9 is achieved by manually rotating the first hand wheel 1.14; the seventh sliding block 1.12 slides on the second trapezoidal screw 1.6 to drive the two sixth sliding blocks 1.11 to slide on the frame 1.1, so that the backrest 1.9 can be automatically lifted.

The transfer equipment also comprises two handrail mechanisms 2, and the two handrail mechanisms 2 are respectively arranged on two sides of the car body 1; the handrail mechanism 2 comprises a handrail seat 2.1, a plurality of handrail support rods 2.2, a handrail 2.3, a first clamping piece 2.4, a second clamping piece 2.5, a third clamping piece 2.6 and a spring 2.7; the handrail seat 2.1 is fixed on one side of the frame 1.1, the handrail seat 2.1 is hinged with one end of a plurality of handrail support rods 2.2, the other end of each handrail support rod 2.2 is hinged with a handrail 2.3, a first clamping piece 2.4 is fixed on the end part of the handrail 2.3, and one end of a second clamping piece 2.5 is embedded in the first clamping piece 2.4; a spring 2.7 is arranged in the first clamping piece 2.4, and two ends of the spring 2.7 are respectively contacted with the first clamping piece 2.4 and the second clamping piece 2.5; the pressing part 2.5.1 and the inserting column 2.5.2 at the other end of the second clamping piece 2.5 are exposed outside the first clamping piece 2.4; the third clamping piece 2.6 is fixed on the upper part of the handrail support rod 2.2, a hole 2.6.1 is arranged on the third clamping piece 2.6, and the hole 2.6.1 is matched with the insertion column 2.5.2 of the second clamping piece 2.5 to realize the fixation of the handrail mechanism 2.

The handrail 2.3 and the part between the two hinge points of the two adjacent handrail supporting rods, the two adjacent handrail supporting rods 2.2 and the part between the two hinge points of the two adjacent handrail supporting rods 2.2 and the handrail seat 2.1 jointly form a parallelogram structure.

One end of the shifting fork 3.33 is provided with a U-shaped groove which is clamped on the second gear 3.27.

The second transmission mechanism also comprises a disc 3.18 which has a sealing function, and the disc 3.18 is connected with the end surface of the second bearing block 3.13 close to the second wheel 3.1.

The chassis 4 belongs to the prior art and is driven by a universal wheel with a locking device.

The working principle and the working process of the invention are as follows:

when the lifting of the vehicle body 1 is automatically realized, the shifting fork 3.33 is matched with the first clamping groove 3.10.1 of the sliding gear box 3.10, and the second gear 3.27 is meshed with the first gear 3.26; the motor 3.7 drives the second transmission shaft 3.29 to rotate, so that the first trapezoidal lead screw 3.16 rotates, the fifth sliding block 3.14 slides on the first trapezoidal lead screw 3.16 to realize the reciprocating movement of the supporting rod 3.19, the scissor mechanism is folded and unfolded, and the lifting of the vehicle body 1 is realized; the lifting height of the vehicle body 1 can be flexibly controlled according to actual conditions, and the equipment is connected with nursing equipment such as a bed and the like;

when the lifting of the backrest 1.9 is automatically realized, the shifting fork 3.33 is matched with the third clamping groove 3.10.3 of the sliding gear box 3.10, and the second gear 3.27 is meshed with the third gear 3.30; the motor 3.7 drives the fourth transmission shaft 3.32 to rotate, so that the second trapezoidal screw 1.6 rotates, and the seventh sliding block 1.12 slides on the second trapezoidal screw 1.6 to drive the two sixth sliding blocks 1.11 to slide on the frame 1.1, thereby realizing the lifting of the backrest 1.9;

when the lifting of the vehicle body 1 and the backrest 1.9 is manually realized, when the shifting fork 3.33 is matched with the second clamping groove 3.10.2 of the sliding gear box 3.10, the second gear 3.27 is not meshed with the first gear 3.26 and the third gear 3.30; manually rotating the second hand wheel 3.1 to enable the first hand wheel shaft 3.41 to rotate to drive the second bevel gear 3.38 to rotate, enabling the first bevel gear 3.37 to rotate to drive the first trapezoidal screw 3.16 to rotate, further enabling the fifth slider 3.14 to slide on the first trapezoidal screw 3.16 to realize reciprocating movement of the supporting rod 3.19, enabling the scissor mechanism to retract and unfold, and realizing lifting of the vehicle body 1; manually rotating the first hand wheel 1.14 to rotate the second trapezoidal lead screw 1.6, and further enabling the seventh sliding block 1.12 to slide on the second trapezoidal lead screw 1.6 to drive the two sixth sliding blocks 1.11 to slide on the frame 1.1, so as to realize the lifting of the backrest 1.9;

manually lifting the side plate 1.2 and enabling the fifth connecting rod 1.3 and the sixth connecting rod 1.4 to be collinear to fix the side plate 1.2; manually pressing the pressing part 2.5.1 of the second clamping piece 2.5 to ensure that the insertion column 2.5.2 of the second clamping piece 2.5 is not matched with the hole 2.6.1 of the third clamping piece 2.6, and further putting down the handrail 2.3;

when the side plate 1.2 and the backrest 1.9 are horizontally placed at the same time, the armrest 2.3 is normally placed to connect the equipment with other nursing equipment such as a bed and the like, so that a user can be conveniently transported to the equipment; then the side plates 1.2 are lowered and the backrest 1.9 is raised the device behaves as a wheelchair facilitating the transport of the user.

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