CN211023683U - Shifting vehicle - Google Patents

Abstract

The utility model relates to a shift vehicle, belonging to the field of shift vehicles, solving the problem that the whole operation is troublesome because a user needs to shift to the shift vehicle by means of external force, and the technical scheme for solving the problem mainly comprises a vehicle base, a lifting upright post, a left mechanical arm, a right mechanical arm and a buttock support body; the left mechanical arm and the right mechanical arm lift and put down the human body under the action of the driving force of the lifting upright post; the utility model discloses a aversion car relies on the drive power of lift stand to make left arm and right arm lift up and put down the human body, because left arm and right arm effect play the effect of support in human armpit, has imitated people's both hands and has embraced old man or child's action, accords with the characteristics of human atress position, can not cause injury or discomfort to old man or patient, for traditional bandaging formula aversion car and gallows, the utility model discloses the operation is succinct more, practices thrift the worker-protecting time and labour, more can satisfy the user to accomplishing the aversion demand in some needs short time.

Description

Shifting vehicle

Technical Field

The utility model relates to a aversion car.

Background

With social development and technological progress, the medical field is more and more emphasized, so that research in the field of medical equipment is deeper, in the current medical environment, a considerable part of using objects which are difficult to take care of themselves and move daily due to the inconvenience of lower limbs exist, the using objects generally need to be helped by nursing staff, the physique of the staff needing to be nursed is very weak, the physical strength of the nursing staff is limited, and therefore the nursing staff needed to be held up or lifted up by the nursing staff is often unstable, and potential safety hazards are caused.

Therefore, the importance of medical equipment in the field is more important, in view of poor mobility of a user, the common mobile cart equipment cannot meet the requirements, especially, in the process of transporting and fixing the user on the shift cart, the problem that the user is uncomfortable or topples over towards the left side and the right side is easy to occur, when the user holds the user, if the user exerts improper force, the user cannot respond to the user in time, the accident often causes great secondary damage to the user, and the generation of medical-patient contradiction is aggravated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to reach the purpose provide a aversion car, solve present use object and need shift to the aversion car with the help of external force and lead to whole troublesome poeration and bring the technical problem of secondary damage for using the object.

In order to solve the technical problem, the utility model is realized by the following technical proposal that the shift vehicle comprises a vehicle base and a lifting upright post arranged on the vehicle base; the left mechanical arm and the right mechanical arm are arranged on the lifting upright post, and a holding force for holding the trunk of a human body is formed between the left mechanical arm and the right mechanical arm; a hip supporting body arranged below the left mechanical arm and the right mechanical arm and used for supporting the hip of the human body; the left mechanical arm and the right mechanical arm lift and put down the human body under the action of the driving force of the lifting upright post.

The utility model has the advantages that:

The utility model discloses a shifting vehicle relies on the drive power of lift stand to make left arm and right arm lift up and put down the human body, because left arm and right arm effect are in the human armpit and play the effect of support, has imitated the action that people's both hands hold old man or child, accords with the characteristics of human atress position, can not cause injury or discomfort to old man or patient, for traditional bandage formula shifting vehicle and gallows, the utility model discloses the operation is succinct more and quick, practices thrift the nurse time and labour, more can satisfy the user to accomplish the aversion demand in some needs short time;

Secondly, the left mechanical arm and the right mechanical arm are respectively used for being supported under two armpits of a human body and can just fix the left and right directions of the human body, so that the use object can be prevented from toppling and shaking towards the left and right directions, and the safety performance of the human body in the lifting and putting down processes is improved;

Then, a hip supporting body is arranged below the left mechanical arm and the right mechanical arm, the hip supporting body is mainly used for supporting the hip of a human body, and a using object can sit on the hip supporting body, so that the supporting is realized in the vertical direction, and the stability is improved;

Finally, the lifting upright post can adjust the heights of the left mechanical arm and the right mechanical arm according to different human bodies, so that the requirements of different human bodies are met, and the practicability is good;

Therefore, see from whole utility model's technical scheme, rely on lift stand drive power to make left arm and right arm lift up and put down the human body, left arm and right arm support two armpits of human body, just so realized using object safety, high efficiency, comfortable shift to the aversion car on, to the nurse, need not the nurse and pay out the strength, simplify greatly and use the process that the object shifted to the aversion car on, more reduce the secondary damage that this shift in-process brought, can reduce the accident rate at the use object shift in-process even.

preferably, be equipped with two pivots on the lift stand, left arm and right arm rotate the setting around two pivots respectively, and pivot and horizontal plane contained angle are α, and 0< α <90, and left arm and right arm receive the action of gravity to produce towards human trunk pivoted motion trend.

preferably, be provided with the end plate in the pivot, the relative pivot axial tilt of end plate sets up, and end plate and pivot axial contained angle are β, and 0 < β <45, are provided with the commentaries on classics hole on the end plate, and the axis in commentaries on classics hole and pivot axis interval are d, and 30mm < d <60mm is connected with the connecting rod between two end plates, and the tip of connecting rod rotates and sets up in commentaries on classics hole department.

Preferably, a blocking part is arranged between the inner sides of the left mechanical arm and the right mechanical arm and used for limiting a closing angle between the two mechanical arms.

Preferably, the gear is a spring or an electric push rod or a cylinder.

Preferably, the left mechanical arm and the right mechanical arm are connected through an arm driving device, the arm driving device comprises a first tooth and a second tooth, the two rotating shafts are respectively a left rotating shaft and a right rotating shaft, the first tooth and the second tooth are linked, the first tooth is used for driving the left mechanical arm through the left rotating shaft, the second tooth is used for driving the right mechanical arm through the right rotating shaft, the first tooth or the second tooth is used for controlling the left mechanical arm and the right mechanical arm to be synchronously closed or separated, the angular speeds of the left mechanical arm and the right mechanical arm are the same, and the left mechanical arm and the right mechanical arm are symmetrically arranged along a vertical plane.

Preferably, the first tooth comprises a first gear and a second gear which are coaxially fixed, the second tooth comprises a third gear and a fourth gear which are coaxially fixed, the first gear is meshed with the third gear, the fifth gear is fixed on the left rotating shaft, the sixth gear is fixed on the right rotating shaft, the second gear is meshed with the fifth gear, and the fourth gear is meshed with the sixth gear.

Preferably, the left mechanical arm and the right mechanical arm are both provided with a support pad simulating the shape of a human hand.

Preferably, the buttock support body comprises a support and a buttock support plate, the support is arranged on the vehicle base, the support is rotatably connected with the buttock support plate, a linear driver is arranged on the buttock support plate, a connecting rod assembly is further arranged between the support and the buttock support plate, one end of the connecting rod assembly is rotatably connected with the support, the other end of the connecting rod assembly is rotatably connected with the linear driver, the buttock support mechanism further comprises a locking piece for locking the connecting rod assembly, when the locking piece is in a locking state, the linear driver drives the buttock support plate to rotate relative to the support, and when the locking piece is in an unlocking state, the buttock support plate can.

Preferably, the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the linear actuator, the other end of the first connecting rod is rotatably connected with the second connecting rod, one end of the second connecting rod, which is far away from the first connecting rod, is rotatably connected with the bracket, when the locking piece is in a locking state, the second connecting rod is non-rotatable relative to the bracket, the linear actuator drives the hip support plate to rotate relative to the bracket, when the locking piece is in an unlocking state, the second connecting rod is rotatable relative to the bracket, and the hip support plate is manually rotatable relative to the bracket.

Preferably, the second connecting rod comprises a sleeve, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are mounted on the side wall of the sleeve and are arranged on the same side, a snap spring pin is rotatably connected between the end parts, far away from the sleeve, of the first connecting plate and the second connecting plate, one end, far away from the linear driver, of the first connecting rod is rotatably mounted on the snap spring pin, a connecting shaft is connected between the hip supporting plate and the support, and the sleeve is rotatably mounted on the connecting shaft; the first connecting rod is installed between the first connecting plate and the second connecting plate, and a limiting shaft sleeve for limiting the first connecting rod to slide is arranged on the clamp spring pin.

Preferably, the locking piece comprises a locking bolt and a pull ring, and the second connecting rod and the bracket are respectively provided with a positioning hole for the locking bolt to move.

Preferably, the opposite ends of the hip supporting plate and the bracket are provided with locking teeth.

Preferably, the hip support body comprises two hip support plates which are arranged in bilateral symmetry about a horizontal axis of the support, and an arc-shaped gap is arranged between the two hip support plates.

Preferably, the lift stand includes the inner tube, locates the electric putter of the inboard bottom of inner tube, by electric putter drive along the flexible outer tube in the inner tube outside, electric putter has safety release, safety release has the safety release switch, the aversion car is still including the safety release link assembly that is used for pressing the safety release switch, the vehicle bottom seat is equipped with the safety release button of drive safety release link assembly action.

Preferably, safety release is located that inner tube bottom is inboard and safety release switch extends to safety release below, safety release link assembly includes the horizontal migration connecting rod and rotates the connecting rod, horizontal swing joint of horizontal migration connecting rod is on aversion car base, safety release button is connected to the one end of horizontal migration connecting rod, and rotation connecting rod is connected to one end in addition, and safety release button is located aversion car base side, it is equipped with the roof that upwards promotes safety release switch to rotate the connecting rod, safety release button is connected with reset spring.

Preferably, the rotating connecting rod comprises a vertical section and a horizontal section which are connected into a V shape, the bottom of the vertical section is hinged with the horizontal moving connecting rod, the connecting part of the vertical section and the horizontal section is rotatably connected with the rotating shaft, and the top plate is arranged on the horizontal section.

Preferably, the lifting stand column inclines the setting backward, and the guide rail includes the guide rail strip of being connected with outer tube and the guide rail slider who links with the inner tube, the guide rail slider has the guide rail groove with guide rail strip sliding fit, the length of guide rail slider is greater than the third of inner tube length and when the outer tube outwards stretches out extreme position at least the guide rail slider and the guide rail strip of fifth inner tube length keep coordinating.

Preferably, the horizontal projection of the lifting upright post is in a shape with a narrow front part and a wide rear part and gradually changed width, and two groups of guide rails are arranged on the left side and the right side of the rear part of the lifting upright post side by side.

Preferably, the inner wall of the lower front side of the outer pipe is connected with a backing plate supported on the outer wall of the inner pipe, or/and the outer wall of the upper front side of the inner pipe is connected with a backing plate supported on the inner wall of the outer pipe.

Preferably, a self-lubricating nylon bush is arranged in the guide rail groove.

Other features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

Drawings

Fig. 1 is a schematic perspective view of a shift cart according to a first embodiment of the present invention;

Fig. 2 is a schematic front view of a left mechanical arm and a right mechanical arm in a first embodiment of the present invention;

Fig. 3 is a schematic perspective view of a left mechanical arm and a right mechanical arm in a first embodiment of the present invention;

Fig. 4 is a schematic front view of a rotating shaft according to an embodiment of the present invention;

Fig. 5 is a schematic bottom view of a rotating shaft according to an embodiment of the present invention;

Fig. 6 is a schematic structural view of the middle arm support of the present invention;

FIG. 7 is an enlarged partial schematic view at F of FIG. 6;

FIG. 8a is a schematic view of the hip support plate closed with the locking member of the arm support according to the present invention;

FIG. 8b is a cross-sectional view taken along plane G-G of FIG. 8 a;

Fig. 9 is a partial structural schematic view of a bracket in the middle arm support of the present invention;

Fig. 10 is a schematic structural view of a second connecting rod in the middle arm support according to the present invention;

FIG. 11a is a schematic view of the hip support plate of the present invention in an open position with the locking member locked;

FIG. 11b is a cross-sectional view taken along plane C-C of FIG. 11 a;

Fig. 12a is a schematic structural view of the hip support plate closed in the state where the locking member is unlocked in the middle arm support of the present invention;

FIG. 12b is a cross-sectional view taken along plane D-D of FIG. 12 a;

Fig. 13a is a schematic structural view of the hip support plate of the present invention in an unlocked state of the locking member of the arm support;

FIG. 13b is a cross-sectional view taken along plane E-E of FIG. 13 a;

FIG. 14 is a front view of the cart;

3 FIG. 3 15 3 is 3 a 3 schematic 3 view 3 of 3 the 3 cross 3- 3 sectional 3 structure 3 A 3- 3 A 3 of 3 FIG. 3 14 3; 3

FIG. 16 is an enlarged view of the structure at I in FIG. 14;

FIG. 17 is a side view of the cart;

FIG. 18 is a schematic view of the cross-sectional structure B-B in FIG. 15;

FIG. 19 is a first view of the partial structure of FIG. 18;

FIG. 20 is a second partial schematic view of the structure of FIG. 18;

Fig. 21 is a schematic structural diagram of a first usage state of the usage object according to a first embodiment of the present invention;

Fig. 22 is a schematic structural diagram of a second usage state of the object in accordance with the first embodiment of the present invention;

Fig. 23 is a schematic structural diagram of a third structure of a use state of an object in the first embodiment of the present invention;

Fig. 24 is a schematic perspective view of a second embodiment of the present invention;

Fig. 25 is an exploded view of the left and right robot arms in the third embodiment of the present invention;

FIG. 26 is an enlarged view of the structure of FIG. 25 at X;

Fig. 27 is a schematic perspective view of a left mechanical arm and a right mechanical arm in the fourth embodiment of the present invention.

Detailed Description

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the following description, the appearances of the indicating orientation or positional relationship, such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are only for convenience in describing the embodiments and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The first embodiment is as follows:

Referring to fig. 1, the present embodiment is a displacement vehicle, which includes a vehicle base C, a pulley C1 is arranged on the vehicle base C, four pulleys C1 are provided, a pedal area is arranged on the vehicle base C, a lifting upright column D is arranged on the vehicle base C, the lifting upright column D is mounted on the lifting upright column D and is used for respectively lifting a left mechanical arm a1 and a right mechanical arm a2 under the armpit of a human body, and the left mechanical arm a1 and the right mechanical arm a2 are tightly held around the trunk of the human body; a hip support body B arranged below the left mechanical arm A1 and the right mechanical arm A2 and used for supporting the human hip; the left mechanical arm A1 and the right mechanical arm A2 lift and lower the human body under the driving force of the lifting upright.

The shift car in this embodiment, rely on the drive power of lifting column D to make left arm A1 and right arm A2 lift up and put down the human body, because left arm A1 and right arm A2 act on the human armpit respectively and play the effect of supporting, has imitated people's both hands and has held the action of lifting old man or child, accord with the characteristics of human body stress position, can not cause injury or discomfort to old man or patient, compared with traditional bandaging shift car and gallows, the utility model discloses the operation is succinct and quick more, practices thrift and protects worker time and labour, can more satisfy to some users who need to accomplish the demand of shifting in the short time;

Secondly, because the left mechanical arm A1 and the right mechanical arm A2 are respectively used for being supported under two armpits of a human body, the left mechanical arm A1 and the right mechanical arm A2 can just fix the left and right directions of the human body, so that the use object can be prevented from toppling and shaking towards the left and right directions, and the safety performance of the human body in the lifting and putting down processes is improved;

Then, the hip support body B is arranged and mainly used for supporting the hip of a human body, and a user can sit on the hip support body, so that the hip support body B can support the user in the vertical direction, and the stability is improved;

Finally, the lifting upright post D can adjust the height of the cushion body according to different human bodies, so that the requirements of different human bodies can be met, and the practicability is good;

Therefore, see from whole utility model's technical scheme, rely on lift stand D drive power to make left arm A1 and right arm A2 lift and put down the human body, left arm A1 and right arm A2 support two armpits of human body, just so realized using object safety, high efficiency, comfortable transfer to the aversion car on, to the nurse, need not the nurse and pay out strength, simplify greatly and use the process that the object shifted to the aversion car on, more reduce the secondary damage that brings in the transfer process, can reduce the accident rate at the use object aversion in-process even.

Specifically, referring to fig. 1 to 5, the left arm a1 is lifted under the left armpit of the human body, the right arm a2 is lifted under the right armpit of the human body, the left arm a1 and the right arm a2 simulate hands of a person to lift the upper half of the body of the person with difficulty in moving, and simultaneously the left arm a1 and the right arm a2 are respectively clasped from the left side and the right side of the trunk of the person with difficulty in moving, so as to avoid the upper body trunk from swaying in the armpit supporting process, in addition, a supporting pad a5 simulating the shape of the hand is arranged on the left arm a1 and the right arm a2, so that the supporting and clasping effects can be achieved through the supporting pad a5, in addition, the supporting pad a5 can be rotatably connected with the arms, so that the supporting pad a5 can be attached to the armpits of the human body and the skin as much as possible, and the comfort of the person to.

In order to reduce the stimulation of the pad body A5 to the underarm skin and reduce the probability of damaging the underarm skin, the material of the pad body A5 can be flexible material such as silica gel, and correspondingly, a metal reinforcing plate matched with the shape of the pad body A5 can be arranged in the pad body A5 to improve the mechanical strength of the pad body A5.

The frame is provided with two rotating shafts which are a left rotating shaft A3 and a right rotating shaft A4 respectively. The left rotating shaft A3 and the right rotating shaft A4 are simultaneously installed on the frame, the left mechanical arm A1 is rotatably installed on the left rotating shaft A3, the right mechanical arm A2 is installed on the right rotating shaft A4, and the left mechanical arm A1 and the right mechanical arm A2 are respectively supported through the left rotating shaft A3 and the right rotating shaft A4.

In this embodiment, the left pivot axis A3 and the right pivot axis A4 are identical, and the left arm A1 and the right arm A2 are identical. A vertical plane is taken along which the left-hand pivot A3 and the right-hand pivot a4 are symmetrically disposed.

taking the left rotation axis A3 as an example, the left rotation axis A3 is arranged at the left side of the above-mentioned vertical plane, the included angle between the left rotation axis A3 and the horizontal plane is α, 0< α <90 °, that is, the left rotation axis A3 is neither horizontally arranged nor vertically arranged, and the rotation plane where the corresponding left mechanical arm a1 is located is a non-horizontal plane and is also a non-vertical plane, therefore, after the left armpit presses the pad a5 on the left mechanical arm a1, the left mechanical arm a1 rotates towards the lowest vertical height point in the rotation plane under the dual actions of the self-gravity and the human body gravity, and only needs to be arranged in the middle of the human body, so the process of rotating the highest point of the left mechanical arm a1 from the highest height to the lowest height point in the rotation plane is equivalent to the process of rotating the left mechanical arm a1 towards the human body, and at the same time, the left mechanical arm a1 contacts with the human body before the lowest height point, the rotation is blocked by the human body, but still keeps the movement trend of the human body towards the middle of the human body, and the human body 1 is larger, and the larger.

The working principle of the right mechanical arm A2 and the right rotating shaft A4 is the same. The rotation of both the left arm A1 and the right arm A2 involves movement horizontally closer to the torso from a position further from the torso.

Before the left mechanical arm A1 and the right mechanical arm A2 rotate to clasp the trunk, a symmetrical vertical plane between the left rotating shaft A3 and the right rotating shaft A4 can be adjusted to coincide with the middle axial plane of the trunk, the corresponding left mechanical arm A1 and the right mechanical arm A2 can clasp the trunk from the left side and the right side of the trunk respectively, on one hand, the comfort level of a human body is good, and on the other hand, the clasping effect on the trunk is also good.

In the above holding process, in order to ensure that the holding position of the trunk is bilaterally symmetrical and avoid the trunk from tilting, the left arm a1 and the right arm a2 are also symmetrically arranged in the present embodiment, and the symmetry plane is also the symmetry plane between the left rotation axis A3 and the right rotation axis a 4. In order to ensure real-time symmetry between the left arm a1 and the right arm a2, the rotation speeds of the left arm a1 and the right arm a2 need to be consistent or approximately consistent, and therefore, an interlocking relationship needs to exist between the left rotating shaft A3 and the right rotating shaft a 4.

taking the left rotating shaft A3 as an example, an end plate a18 is arranged on the left rotating shaft A3, the end plate a18 is axially inclined relative to the left rotating shaft A3, an axial included angle between the end plate a18 and the rotating shaft is β, 0 degrees < β <45 degrees, a rotating hole a19 is arranged on the end plate a18, the distance between the axis of the rotating hole a19 and the axis of the rotating shaft is d, and 30mm < d <60 mm. at this time, a connecting rod a17 is connected between the end plate a18 of the left rotating shaft A3 and the end plate a18 with the rotating shaft, and two ends of the connecting rod a17 are respectively rotatably arranged at two rotating holes a 19.

The angular velocities of the left rotating shaft A3 and the right rotating shaft a4 can still be kept equal or approximately equal.

Rely on manual control left arm and right arm in this embodiment in addition, consequently in order to prevent that left arm and right arm from drawing close each other and colliding under the dead weight effect, set up gear piece A20 between left side arm and the right arm inboard, gear piece A20 is used for restricting two closed angle between the arm, gear piece is spring or electric putter or air spring, and the personage that is fat a bit, in order to realize great clamp force, closed angle between the arm can be less, and can oppress the trunk under the circumstances of closed angle undersize, restricts the arm through gear piece to avoid the arm to the excessive extrusion of trunk. Simultaneously the truck leaves the arm after, the arm can perhaps produce and slide, and then draw close each other and produce the striking, keep off the position piece and effectively play the restriction to the closed angle between two arms, avoid the direct striking of arm, improve the life of arm, realize opening and shutting of left arm and right arm through two pivots, can satisfy the human demand of different fat thin sizes, practicality is good, the connecting rod can satisfy the human body and embrace the in-process and to balanced demand, the slope of shoulder about the disappearance.

For the hip support, see fig. 1, 6 to 13B and 22 in particular, the hip support comprises a bracket B1 and a hip support plate B2, the bracket B1 is disposed on a vehicle bottom seat C, the hip support plate B2 is rotatably connected to the bracket B1, the hip support plate B2 is bilaterally symmetrical, an arc-shaped gap B0 is formed between the two hip support plates B2, specifically, the two hip support plates B2 are provided with axisymmetric arc-shaped gaps, and a certain distance is left between the two hip support plates B1, so as to form a middle gap B0, the middle gap B0 is provided, which is mainly aimed at facilitating the toileting of the user, the user can go directly on the nursing vehicle without getting off the vehicle, and is convenient, a linear driver B3 is disposed on the hip support plate B2, a link assembly B4 is further disposed between the bracket B1 and the hip support plate B2, one end of the link assembly B4 is rotatably connected to the bracket B1, the other end is rotatably connected with a linear driver B3, the buttocks support mechanism also comprises a locking piece B5 which locks the connecting rod component B4, when the locking piece B5 is in a locking state, the linear driver B3 drives the buttocks support plate B2 to rotate relative to the bracket B1, and when the locking piece B5 is in an unlocking state, the buttocks support plate B2 can rotate manually relative to the bracket B1. When the locking piece B5 is in a locking state, the linear driver B3 drives the connecting rod assembly B4 to drive the hip support plate B2 to rotate relative to the bracket B1, the electric drive hip support plate B2 is realized to rotate, when the linear driver B3 cannot normally work, the locking piece B5 is in an unlocking state, the hip support plate B2 can be manually driven to rotate around the bracket B1 at the moment, an object is effectively prevented from being clamped on the vehicle, and the safety of the disabled-assistant vehicle during use is improved.

In this embodiment, the link assembly B4 includes a first link B41 and a second link B42, one end of the first link B41 is rotatably connected to the linear actuator B3, the other end of the first link B41 is rotatably connected to the second link B42, one end of the second link B42 remote from the first link B41 is rotatably connected to the bracket B1, the second link B42 is non-rotatable with respect to the bracket B1 when the lock B5 is in the locked state, the linear actuator B3 drives the hip support plate B2 to rotate with respect to the bracket B1, the second link B42 is rotatable with respect to the bracket B1 when the lock B5 is in the unlocked state, and the hip support plate B2 is manually rotatable with respect to the bracket B1. When the locking piece B5 is in a locking state, the second connecting rod B42 is not rotatable relative to the bracket B1, the linear driver B3 drives the first connecting rod B41 to rotate relative to the second connecting rod B42, the hip supporting plate B2 rotates relative to the bracket B1, when the locking piece B5 is in an unlocking state, the first connecting rod B41 can rotate relative to the second connecting rod B42, the second connecting rod B42 can rotate relative to the bracket B1, and the hip supporting plate B2 can rotate relative to the bracket B1 by manually rotating the hip supporting plate B2, so that the manual rotation adjustment of the hip supporting plate B2 is realized, the phenomenon that the locking piece is symmetrically clamped on the deformity promoting vehicle is prevented, and the safety of the deformity promoting vehicle is improved.

In the present embodiment, second link B42 includes sleeve B4201, first link B4202 and second link B4203 are mounted on the side wall of sleeve B4201 and disposed on the same side, snap pin B6 is rotatably coupled between the ends of first link B4202 and second link B4203 remote from sleeve B4201, the end of first link B41 remote from linear actuator B3 is rotatably mounted on snap pin B6, coupling shaft B7 is coupled between hip support plate B2 and bracket B1, and sleeve B4201 is rotatably mounted on coupling shaft B7. Sleeve B4201 is rotatably connected to connecting shaft B7, first connecting plate B4202 and second connecting plate B4203 are rotatable with rotation of sleeve B4201, locking member B5 limits rotation of first connecting plate B4202 and second connecting plate B4203 when in a locked state, linear driver B3 rotates first connecting rod B41 with respect to latch pin B6, first connecting plate B4202 and second connecting plate B4203 are rotatable with respect to connecting shaft B7 when in an unlocked state, first connecting plate B4202 and second connecting plate B4203 are rotatable with rotation of sleeve B4201, first connecting rod B41 is also rotatable with respect to latch pin B6 when in an unlocked state, manual rotation of hip support plate B2 is achieved, and the arrangement of first connecting plate B4202 and second connecting plate B4203 enhances strength of second connecting rod B42 to ensure stability when hip support plate B2 is manually rotated.

In this embodiment, the bracket B1 is provided with a first movable slot B9 for swinging the first connecting plate B4203 and the second connecting plate B4203. By providing the first movable groove B9 for swinging the first link plate B4202 and the second link plate B4203 on the bracket B1, the first movable groove B9 can limit the movable range of the first link plate B4202 and the second link plate B4203, prevent the first link plate B4202 and the second link plate B4203 from swinging during rotation, and improve the stability of rotation of the hip support plate B2.

In the embodiment, the distance between the inner wall of the first movable groove B9 and the side wall of the first connecting plate B4202 far away from the second connecting plate B4203 is M, and 0 < M < 3 cm. Specifically, in this example, M is 2 cm. This arrangement ensures that the first connecting plate B4202 and the second connecting plate B4203 are not rubbed by the inner wall of the first movable groove B9 when they are rotated.

In this embodiment, the locking member B5 includes a locking bolt B52 and a pulling ring B52, and the second link B42 and the bracket B1 are both provided with a positioning hole B10 for movably locking the bolt B52. The locking bolt B52 is inserted into the positioning hole B10, the second connecting rod B42 is connected with the bracket B1, at the moment, the second connecting rod B42 cannot rotate, the locking piece B5 is in a locking state, the linear driver B3 drives the first connecting rod B41 to rotate around the second connecting rod B42, the hip supporting plate B2 rotates relative to the bracket B1, after the locking bolt B52 is pulled out, the second connecting rod B42 is separated from the bracket B1, the second connecting rod B42 can rotate around the bracket B1, the first connecting rod B41 rotates relative to the second connecting rod B42, the second connecting rod B42 rotates relative to the bracket B1, and at the moment, the hip supporting plate B2 can be rotated manually.

In this embodiment, the linear actuator B3 is mounted within the hip support plate B2. The linear driver B3 is arranged in the hip support plate B2, the hidden arrangement of the linear driver B3 is realized, and the structure of the shift car is more compact and the appearance is more attractive.

In this embodiment, the opposite ends of the hip support plate B2 and bracket B1 are each provided with a locking tooth B8. The provision of the locking tooth B8 prevents the hip support plate B2 and the bracket B1 from rocking in the closed state.

In this embodiment, the hip support plate B2 is provided with a second movable slot B11 for the link assembly B4 to swing. Through set up the second activity groove B11 that supplies link assembly B4 wobbling on buttock backup pad B2, can restrict the wobbling scope of link assembly B4 on the one hand, realize buttock backup pad B2 at the safe within range internal rotation, rock when on the other hand has also avoided first link B41 to rotate, improve the travelling comfort when shifting the car and using.

For the lift stand, see fig. 1, fig. 14 to fig. 20 specifically, including outer tube D11, inner tube D12, inner tube D12 and aversion car base fixed connection, outer tube D11 is driven by electric putter and is stretched and drawn back along inner tube D12 outer wall, and electric putter locates the inboard bottom of inner tube, electric putter has safety release device D14, safety release device D14 has safety release switch D141.

To facilitate operation of safety release switch D141, safety release device D14 is located inside the bottom of the inner tube and safety release switch D141 extends below safety release device D14. Still include simultaneously that the safety release link assembly D15 is used for pressing the safety release switch, safety release link assembly D15 includes horizontal migration connecting rod D151 and rotation connecting rod D152, safety release button D153 is connected to the one end of horizontal migration connecting rod D151, and rotation connecting rod D152 is connected to the other one end, rotation connecting rod D152 is equipped with the roof that upwards promotes the safety release switch.

Act on the safety release switch through the safety release link assembly, only need press the safety release button of establishing in car base side, just can make the lift stand promptly descend, conveniently operate. The safety release button D153 is positioned on the side surface of the base of the shifting vehicle, and can be a front side surface, a left side surface, a right side surface or a rear side surface, and the nursing object can operate by bending down.

The rotating connecting rod D152 comprises a vertical section and a horizontal section which are connected into a V shape, the bottom of the vertical section is hinged with the horizontal moving connecting rod, the connecting part of the vertical section and the horizontal section is rotatably connected with the rotating shaft, and the top plate is arranged on the horizontal section. The horizontal moving link is slidably coupled to the guide hole in order to guide the horizontal moving rod to horizontally move linearly. The safety release button only needs to be pressed lightly, the rotating connecting rod can be driven, and then the safety release switch is pushed upwards by the top plate, so that the operation experience is further improved.

The safety release quick switch D141 of the safety release device is provided with a return structure and can be reset after a safety release button is loosened, so that the safety release connecting rod assembly is pushed to return. Of course, further, in order to ensure that the safety release button can be accurately reset, the safety release button can be connected with a reset spring.

Referring to fig. 19, the guide rail includes a guide rail bar D111 connected to the outer pipe and a guide rail slider D122 connected to the inner pipe, the guide rail slider D122 having a guide rail groove slidably engaged with the guide rail bar. The traditional lifting upright is in a vertical state, but because in the embodiment, the lifting upright is arranged in a backward inclining mode, the traditional guide rail sliding block is short and is easy to deform or even damage when being subjected to large force, and the force applied to the lower part of the rear side is borne in a use state. In order to increase the contact area between the guide rail slider D122 and the guide rail strip D111, the length of the guide rail slider D122 is greater than one third of the length of the inner tube, so that a larger force bearing area between the guide rail slider D122 and the guide rail strip D111 is ensured. Those skilled in the art will appreciate that the rail runner D122 may be as long as the length of the inner tube.

It will be understood by those skilled in the art that the relative motion relationships between the outer tube and the inner tube may be interchanged, as may the relative motion relationships between the guide rail bar and the guide rail slider.

Furthermore, the guide rail sliding block with at least one fifth of the length of the inner tube keeps matched with the guide rail strip when the outer tube extends outwards to the limit position. Even if a large backward pressure is applied, the guide rail sliding block and the inner pipe are not easy to deform and are not easy to be damaged by stress. It will be appreciated by those skilled in the art that the guide track D122 may be a generally elongated structure extending from the bottom end to the top end of the inner tube, but it is also possible to use a split structure having at least two portions, wherein the bottom portion is connected to the bottom of the inner tube so that the bottom portion remains engaged with the guide track when the inner tube is extended outwardly to the limit position.

In addition, a gap is formed between the outer tube D11 and the inner tube D12, the outer tube is easy to shake during expansion and contraction, and when the outer tube is extended upwards and is subjected to a large external force, the gap between the outer tube D11 and the inner tube D12 is large, the outer tube is easy to deform under force, and a backing plate D13 supported on the outer wall of the inner tube is connected to the inner wall of the front side of the lower portion of the outer tube or/and a backing plate D13 supported on the inner wall of the outer tube is connected to the outer wall of the front side. When the outer tube D11 is extended upward and is subjected to a large rearward and downward pressure, the pad D13 is supported at the front while being supported at the rear by the guide rails, so that a large supporting force is ensured between the outer tube D11 and the inner tube D12, and the inner and outer tubes are not easily deformed by the force.

Referring to fig. 5 to 7, the horizontal projection of the lifting column is in a shape with a narrow front part and a wide rear part and gradually changed width, the shape is similar to an isosceles triangle, the corners are in arc transition, and the backing plate D13 is arranged at the corner position of the front side of the isosceles triangle. Simultaneously, two groups of guide rails are arranged on the left side and the right side of the rear part of the lifting upright column side by side. The inner pipe can bear larger downward pressure through increasing the number of the guide rails. The left side and the right side of the rear portion of the inner tube are respectively provided with a vertically extending type groove D121, and the guide rail is arranged in the type groove D121 so as to facilitate installation of the guide rail and intensively utilize the space between the inner tube and the outer tube.

In one embodiment, the guide rail is a V-shaped guide rail, so that the guide rail slider has a large contact area with the guide rail strip and can bear large downward force and certain lateral force. Of course, it will be appreciated by those skilled in the art that a dovetail type rail or other existing rail configuration may be substituted.

In order to reduce the friction of the guide rail, the wear is reduced. And a self-lubricating nylon bush D123 is arranged in the guide rail groove. The friction coefficient of nylon is reduced along with the increase of load, and can be reduced to about 0.1-0.15 under the condition of high load, so that the nylon has better lubricating property. And the nylon has good abrasion resistance. Here for installing self-lubricating nylon bush D123, the inner wall in guide rail groove is equipped with the caulking groove, self-lubricating nylon bush gomphosis is in the caulking groove and the veneer is fixed.

In addition, the outer tube D11 and the guide rail strip D111 are metal profiles of an integral structure, so that the integral processing and forming are facilitated. The inner pipe D12 and the guide rail sliding block D122 are both metal profiles and are fixed together by screws, and the inner pipe D12 and the guide rail sliding block D122 are assembled together with the outer pipe D11 after being installed.

In this embodiment, when the user wants to shift from one position to another position, for example, from a bed position to a toilet position, the user sits at the bedside with the help of a caregiver, the shift cart is close to the user, the user puts both feet on the footrest area of the bottom of the cart, the armpit of the user is supported by the armpit support plate, the user is lifted upward, when the hip of the user is 10cm away from the bed surface, the hip support plate is rotated to a position under the hip of the user, and then the user is put down, until the user sits on the hip support plate, see fig. 21, the caregiver pushes the shift cart carrying the user to a target position, as shown in fig. 22, the user can go to the toilet through the arc-shaped gap B0 formed between the left and right hip support plates B2, the user can go directly to the nursing cart without getting off the cart, which is convenient, the hip supporting plates can also be rotated to the two sides of the shifting vehicle, the height of the armpit supporting plates of the shifting vehicle is reduced until the use object sits stably at the target position, the armpit supporting plates are separated, the shifting vehicle is pulled away from the use object, and the shifting process is finished; referring to fig. 23, for another use function of the shift car in this embodiment, when the user slowly stands up under the support of the armpit supporting plate of the shift car, the lifting height can be adjusted according to the will and the body state of the user, the user can try to move the feet according to the body state of the user, the bottom of the shift car is provided with a pulley, the pulley can move along with the user, and continuously support the user to prevent falling down, and when the user feels that the body force is not supported, the user can choose to sit on the shift car for rest or sit on a chair for rest.

Example two:

A aversion car as embodiment one, this embodiment has the following difference, refer to fig. 24, the aversion car is still including establishing the knee baffle F in the front side of buttock supporter for prevent that the human body from sliding forward, in the use, when the user sits on the buttock supporter, the knee baffle can carry on spacingly to the knee of user's object of use, thereby prevents that the user of use from toppling over to the place ahead, simultaneously, because the utility model discloses well back end of tray pad body is formed with carries on spacingly gear plate to the back of human body, sets up this gear plate after, is equivalent to spacing at the rear of user's object of use, can prevent that the user of use from toppling over to the rear.

In this embodiment, because when using the object to sit on the aversion car in this embodiment, the aversion car passes through the fixed left and right directions motion of using the object of armpit layer board, the fixed up-and-down direction motion of using the object of buttock supporter, the knee baffle prevents to use the object to slide forward, therefore, the left and right directions of using the object has been spacing, the fore-and-aft direction of using the object has been spacing already, the vertical direction of using the object also has the support simultaneously, just so realized diversified location effect, when using the object to sit on this removal nursing car, can become very stable, to the nurse, need not to spend great strength to support using the object, the accident rate of using the object in the removal process has significantly reduced, in addition, the knee baffle can be dismantled according to user's self state, thereby improve the flexibility performance when using.

In addition, the shift car is further provided with a waterproof layer, the use object can be used in a bathroom through the fixing mode and the waterproof layer, the use object only needs to sit on the shift car in advance and then is pushed into the bathroom by a nursing person, the use object sitting on the shift car can independently complete bathing or other people help bathing according to the self condition, and the sliding and inclining conditions cannot occur in the bathing process.

Example three:

Referring to fig. 25 and 26, in the present embodiment, the left mechanical arm and the right mechanical arm are connected through an arm driving device, the arm driving device includes a first tooth and a second tooth, the first tooth and the second tooth are linked, the first tooth drives the left mechanical arm a1 through a left rotating shaft A3, the second tooth drives the right mechanical arm a2 through a right rotating shaft a4, and the first tooth or the second tooth controls the left mechanical arm a1 and the right mechanical arm a2 to move closer or away from each other in a rotating manner.

For example, the first tooth and the second tooth are engaged, and the first tooth is rotated reversely to drive the second tooth to rotate reversely. For example, in the embodiment, the first teeth include a first gear A6 and a second gear a7 which are coaxially fixed, the second teeth include a third gear A8 and a fourth gear a9 which are coaxially fixed, the first gear A6, the second gear a7, the third gear A8 and the fourth gear a9 are all horizontally arranged, the radius of the second gear a7 is smaller than that of the first gear A6, the radius of the fourth gear a9 is smaller than that of the third gear A8, the first gear A6 is meshed with the third gear A8, the second gear a7 is separated from the fourth gear a9, the first gear A6 drives the third gear A8, and the third gear A8 drives the fourth gear a9 to rotate. The left rotating shaft A3 is fixed with a fifth gear A10, the right rotating shaft A4 is fixed with a sixth gear A11, the second gear A7 and the fifth gear A10 are meshed by helical teeth, and the fourth gear A9 and the sixth gear A11 are meshed by helical teeth, so that the first gear A6 rotates forwards or backwards to simultaneously drive the left rotating shaft A3 and the right rotating shaft A4, and at the moment, the left rotating shaft A3 and the right rotating shaft A4 rotate towards the direction far away from the trunk, or approach to the trunk.

In the case that the transmission ratio between the second gear a7 and the fifth gear a10 is equal to or approximately equal to the product of the transmission ratio between the first gear A6 and the third gear A8 and the transmission ratio between the fourth gear a9 and the sixth gear a11, the angular velocities of the left rotating shaft A3 and the right rotating shaft a4 are the same or close, and in the case that the vertical plane of symmetry between the corresponding left mechanical arm a1 and the corresponding right mechanical arm a2 coincides with the central axis of the trunk, the left mechanical arm a1 and the right mechanical arm a2 can simultaneously hug or simultaneously release the trunk, and the hugging is that the trunk does not tilt.

In addition, taking the left rotation axis A3 as an example, the smaller the included angle between the left rotation axis A3 and the horizontal plane is, the closer the rotation plane of the left mechanical arm a1 is to the vertical plane, the less comfortable the human body is, and the larger the included angle between the left rotation axis A3 and the horizontal plane is, the closer the rotation plane of the left mechanical arm a1 is to the horizontal plane, the less strong the rotation tendency of the left rotation axis A3 under the action of gravity is, and the less strong the holding force to the left side of the trunk. Therefore, the included angle between the left rotating shaft A3 and the horizontal plane is set within the range of 45-75 degrees.

Example four:

A shifting cart according to the first to third embodiments, which has the following differences, referring to fig. 27, the arm driving device includes a motor a12, a first tooth, a second tooth, a first worm wheel a13, a second worm wheel a14, a first screw a15 and a second screw a 16. The first screw A15 is meshed with a first worm gear A13, the first worm gear A13 is meshed with first teeth, the motor A12 drives the first teeth through the first screw A15, and the first teeth and the left rotating shaft A3 are coaxially fixed. The second screw A16 is engaged with the second worm gear A14, the second worm gear A14 is engaged with the second tooth, the motor A12 drives the second tooth through the second screw A16, and the second tooth is coaxially fixed with the right rotating shaft A4. The product of the transmission ratio of the first screw a15 and the first worm wheel a13 and the transmission ratio of the first worm wheel a13 and the first tooth is equal to or approximately equal to the product of the transmission ratio of the second screw a16 and the second worm wheel a14 and the transmission ratio of the second worm wheel a14 and the second tooth, when the angular velocities of the first tooth and the second tooth are equal or approximately equal.

In addition, the motor shaft, the end of the first screw A15 and the end of the second screw A16 are all fixed with bevel gears, the bevel gear at the end of the motor shaft is simultaneously meshed with the bevel gear at the end of the first screw A15 and the bevel gear at the end of the second screw A16, and the transmission ratio between the bevel gear at the end of the motor shaft and the bevel gear at the end of the first screw A15 is equal or approximately equal to the transmission ratio between the bevel gear at the end of the motor shaft and the bevel gear at the end of the second screw A16.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (21)

1. The utility model provides a aversion car, includes car base, its characterized in that:

A lifting upright column arranged on the vehicle base;

The left mechanical arm and the right mechanical arm are arranged on the lifting upright post and used for respectively lifting the armpits of the human body, and the left mechanical arm and the right mechanical arm tightly hold the trunk of the human body;

A hip supporting body arranged below the left mechanical arm and the right mechanical arm and used for supporting the hip of the human body;

The left mechanical arm and the right mechanical arm lift and put down the human body under the action of the driving force of the lifting upright post.

2. the shift vehicle according to claim 1, wherein the lifting column is provided with two rotating shafts, the left mechanical arm and the right mechanical arm are respectively rotatably arranged around the two rotating shafts, the included angle between the rotating shafts and the horizontal plane is α, 0< α <90 degrees, and the left mechanical arm and the right mechanical arm generate a movement trend of rotating towards the trunk of the human body under the action of gravity.

3. the displacement vehicle of claim 2, wherein the rotating shaft is provided with end plates, the end plates are arranged in an inclined manner relative to the axial direction of the rotating shaft, the axial included angle between the end plates and the rotating shaft is β, the included angle is 0 degrees < β <45 degrees, the end plates are provided with rotating holes, the distance between the axis of each rotating hole and the axis of the rotating shaft is d, the distance between the axis of each rotating hole and the axis of the rotating shaft is 30mm < d <60mm, a connecting rod is connected between the two end plates, and the end parts of the connecting.

4. The transfer cart of claim 3, wherein a stop member is disposed between the inner sides of the left and right mechanical arms, and the stop member is used for limiting a closing angle between the two mechanical arms.

5. The shifting trolley according to claim 4, wherein the gear is a spring, an electric push rod or an air cylinder.

6. The shift vehicle according to claim 2, wherein the left mechanical arm and the right mechanical arm are connected through an arm driving device, the arm driving device comprises a first tooth and a second tooth, the two rotating shafts are respectively a left rotating shaft and a right rotating shaft, the first tooth and the second tooth are linked, the first tooth drives the left mechanical arm through the left rotating shaft, the second tooth drives the right mechanical arm through the right rotating shaft, the first tooth or the second tooth rotationally controls the left mechanical arm and the right mechanical arm to synchronously close or separate, the angular speeds of the left mechanical arm and the right mechanical arm are the same, and the left mechanical arm and the right mechanical arm are symmetrically arranged along a vertical plane.

7. The shifting trolley according to claim 6, wherein the first teeth comprise a first gear and a second gear which are coaxially fixed, the second teeth comprise a third gear and a fourth gear which are coaxially fixed, the first gear is meshed with the third gear, a fifth gear is fixed on the left rotating shaft, a sixth gear is fixed on the right rotating shaft, the second gear is meshed with the fifth gear, and the fourth gear is meshed with the sixth gear.

8. The transfer cart of claim 1, 2, 3 or 6, wherein the left mechanical arm and the right mechanical arm are provided with a support pad simulating the shape of a human hand.

9. The shift cart according to claim 1, 2, 3 or 6, wherein the hip support comprises a support frame and a hip support plate, the support frame is arranged on the cart base and is rotatably connected with the hip support plate, a linear actuator is arranged on the hip support plate, a connecting rod assembly is further arranged between the support frame and the hip support plate, one end of the connecting rod assembly is rotatably connected with the support frame, the other end of the connecting rod assembly is rotatably connected with the linear actuator, the hip support mechanism further comprises a locking member for locking the connecting rod assembly, when the locking member is in a locking state, the linear actuator drives the hip support plate to rotate relative to the support frame, and when the locking member is in an unlocking state, the hip support plate can be manually rotated relative to the support frame.

10. The cart of claim 9, wherein the linkage assembly comprises a first link and a second link, wherein one end of the first link is rotatably connected to the linear actuator, the other end of the first link is rotatably connected to the second link, the end of the second link remote from the first link is rotatably connected to the frame, the second link is non-rotatable relative to the frame when the locking member is in the locked position, the linear actuator drives the hip support plate to rotate relative to the frame, the second link is rotatable relative to the frame when the locking member is in the unlocked position, and the hip support plate is manually rotatable relative to the frame.

11. The shift trolley according to claim 10, wherein the second connecting rod comprises a sleeve, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are mounted on the side wall of the sleeve and are arranged on the same side, a snap spring pin is rotatably connected between the end parts of the first connecting plate and the second connecting plate, which are far away from the sleeve, one end of the first connecting rod, which is far away from the linear driver, is rotatably mounted on the snap spring pin, a connecting shaft is connected between the hip supporting plate and the support, and the sleeve is rotatably mounted on the connecting shaft;

The first connecting rod is installed between the first connecting plate and the second connecting plate, and a limiting shaft sleeve for limiting the first connecting rod to slide is arranged on the clamp spring pin.

12. The cart of claim 10 wherein said locking member comprises a locking bolt and a pull ring, and said second link and said bracket each have a locating hole for the movement of said locking bolt.

13. The cart of claim 9 wherein said opposite ends of said hip support plate and said frame are provided with locking teeth.

14. The vehicle of claim 9, wherein the hip support comprises two hip support plates, the two hip support plates are symmetrically arranged about a horizontal axis of the frame, and an arc-shaped gap is formed between the two hip support plates.

15. The shift vehicle according to claim 9, wherein the lifting upright comprises an inner tube, an electric push rod arranged at the bottom of the inner side of the inner tube, and an outer tube driven by the electric push rod to extend and retract along the outer side of the inner tube, the electric push rod is provided with a safety release device, the safety release device is provided with a safety release switch, the shift vehicle further comprises a safety release connecting rod assembly used for pressing the safety release switch, and the vehicle base is provided with a safety release button used for driving the safety release connecting rod assembly to act.

16. The vehicle according to claim 15, wherein the safety release device is located on the inner side of the bottom of the inner tube, the safety release switch extends below the safety release device, the safety release connecting rod assembly comprises a horizontal moving connecting rod and a rotating connecting rod, the horizontal moving connecting rod is horizontally and movably connected to a base of the vehicle, one end of the horizontal moving connecting rod is connected with the safety release button, the other end of the horizontal moving connecting rod is connected with the rotating connecting rod, the safety release button is located on the side face of the base of the vehicle, the rotating connecting rod is provided with a top plate which upwards pushes the safety release switch, and the safety release button is connected with a reset spring.

17. The shifting trolley according to claim 16, wherein the rotating connecting rod comprises a vertical section and a horizontal section which are connected into a V shape, the bottom of the vertical section is hinged with the horizontal moving connecting rod, the connecting part of the vertical section and the horizontal section is rotatably connected with the rotating shaft, and the top plate is arranged on the horizontal section.

18. The shift trolley according to claim 16, wherein the lifting columns are arranged in a backward inclined manner, the guide rails comprise guide rail strips connected with the outer pipe and guide rail sliders connected with the inner pipe, the guide rail sliders are provided with guide rail grooves matched with the guide rail strips in a sliding manner, the length of the guide rail sliders is more than one third of the length of the inner pipe, and the guide rail sliders with at least one fifth of the length of the inner pipe are matched with the guide rail strips when the outer pipe extends outwards to the limit position.

19. The shifting vehicle of claim 16, wherein the horizontal projection of the lifting column is a shape with a narrow front part and a wide rear part and a gradually-changed width, and two sets of guide rails are arranged side by side on the left and right sides of the rear part of the lifting column.

20. The transfer cart of claim 16, wherein the lifting column further comprises a pad plate, the inner wall of the lower front side of the outer tube is connected with the pad plate supported on the outer wall of the inner tube, or/and the outer wall of the upper front side of the inner tube is connected with the pad plate supported on the inner wall of the outer tube.

21. The shifting trolley according to claim 18, wherein the lifting column further comprises a backing plate, and a self-lubricating nylon bush is arranged in the guide rail groove.

Images