阅读说明：本技术 一种用于运输的电动三轮车 (Electric tricycle for transportation ) 是由 张红云 于 2021-10-11 设计创作，主要内容包括：本发明涉及电动车领域,具体是一种用于运输的电动三轮车；包括车本体、车厢和电机；所述车本体的顶部固连有车厢；所述车厢的内部设有连接块；所述连接块的内部固连有电机；所述电机的输出轴固连有第一锥齿轮；所述连接块的表面转动连接有丝杆；所述丝杆的表面靠近丝杆的顶部位置固连有第二锥齿轮；所述丝杆的螺母的表面固连有连杆；所述连杆的表面靠近连杆的底部位置转动连接有承压板；通过本发明将电动三轮车的尾部增加自动升降功能部件,便利于工人对货物的装卸以及乘客乘车,减少了工作人员装卸货物的工作强度,同时对于特殊人群,可以直接进行承压板自动上下,无需较多的辅助人员,便利于了特殊人员的短距离快速出行。(The invention relates to the field of electric vehicles, in particular to an electric tricycle for transportation; comprises a vehicle body, a carriage and a motor; the top of the vehicle body is fixedly connected with a carriage; a connecting block is arranged inside the carriage; the motor is fixedly connected inside the connecting block; the output shaft of the motor is fixedly connected with a first bevel gear; the surface of the connecting block is rotatably connected with a screw rod; a second bevel gear is fixedly connected to the surface of the screw rod close to the top of the screw rod; the surface of the nut of the screw rod is fixedly connected with a connecting rod; the surface of the connecting rod is rotatably connected with a bearing plate at a position close to the bottom of the connecting rod; according to the electric tricycle, the automatic lifting functional part is additionally arranged at the tail part of the electric tricycle, so that the electric tricycle is convenient for workers to load and unload goods and passengers to take a bus, the working strength of the workers in loading and unloading the goods is reduced, meanwhile, the pressure bearing plates can be directly and automatically moved up and down for special people, more auxiliary personnel are not needed, and the short-distance quick traveling of the special people is facilitated.)

1. An electric tricycle for transportation characterized in that: comprises a vehicle body (1), a carriage (2) and a motor (3); the top of the vehicle body (1) is fixedly connected with a carriage (2); a connecting block (4) is arranged in the carriage (2) and close to the tail of the vehicle; the motor (3) is fixedly connected to the position, close to the top of the connecting block (4), in the connecting block (4); the output shaft of the motor (3) is fixedly connected with a first bevel gear (5); the surface of the connecting block (4) is rotatably connected with a screw rod (6); a second bevel gear (7) is fixedly connected to the surface of the screw rod (6) close to the top of the screw rod (6), and the second bevel gear (7) is in meshing connection with the first bevel gear (5); the surface of the nut of the screw rod (6) is fixedly connected with a connecting rod (8); the surface of the connecting rod (8) is rotatably connected with a bearing plate (9) at the position close to the bottom of the connecting rod (8).

2. An electro-tricycle for transportation according to claim 1, characterized in that: a sliding groove (10) is formed in the carriage (2); the outer contour of the connecting block (4) is designed to be a rectangular structure, and the connecting block (4) is connected to the inside of the sliding groove (10) in a sliding mode.

3. An electro-tricycle for transportation according to claim 1, characterized in that: the bottom surface of the pressure bearing plate (9) is provided with a first pressure groove; a first pressure block (11) is connected inside the first pressure groove in a sliding manner; a first spring (12) is fixedly connected between the first pressure block (11) and the bottom of the first pressure groove; a second pressure groove is formed in the connecting block (4) at a position close to the bottom of the connecting block (4), and the second pressure groove is communicated with the first pressure groove through a pipeline; a second pressure block (13) is connected inside the second pressure groove in a sliding manner; and clamping grooves (14) which are uniformly distributed are formed in the position of the second pressure block (13) on the surface of the screw rod (6).

4. An electro-tricycle for transportation according to claim 3, characterized in that: the bottom of the nut of the screw rod (6) is fixedly connected with a first telescopic rod (15); a supporting groove (16) is formed in the bottom surface of the pressure bearing plate (9), and the supporting groove (16) is communicated with the first telescopic rod (15) through a pipeline; a push plate (17) is connected to the inside of the support groove (16) in a sliding manner; a fixed block (18) is fixedly connected to the middle position of the bottom surface of the push plate (17); the bottom surface of the push plate (17) is fixedly connected with an elastic pad (19); the bottom of the elastic cushion (19) is fixedly connected with adjusting blocks (20) which are uniformly arranged.

5. An electro-tricycle for transportation according to claim 1, characterized in that: the top surface of the pressure bearing plate (9) is provided with a safety groove (21); the bottom of the safety groove (21) is provided with uniformly distributed telescopic grooves (22); the insides of the telescopic grooves (22) are all connected with ejection columns (23) in a sliding manner; elastic sheets (24) are fixedly connected between the top column (23) and the bottom of the corresponding telescopic groove (22); and the tops of the top columns (23) are fixedly connected with a shaped plate (25) together.

6. An electro-tricycle for transportation according to claim 5, characterized in that: the side surface of the nut of the screw rod (6) is fixedly connected with a second telescopic rod (26), and the second telescopic rod (26) is communicated with the telescopic groove (22) through a pipeline; and the surface of the connecting block (4) is fixedly connected with a pressing plate (27) close to the top of the connecting block (4).

7. An electro-tricycle for transportation according to claim 6, characterised in that: the top surface of the shaped plate (25) is provided with ball grooves (28) which are uniformly distributed; the positions between two adjacent ball grooves (28) are designed in a spherical structure.

8. An electro-tricycle for transportation according to claim 7, characterized in that: the side surfaces of the pressure bearing plates (9) are provided with guide grooves; the guide plates (29) are rotatably connected inside the guide grooves; a second spring is fixedly connected between the guide plate (29) and the bottom of the guide groove; the side face of one side of the guide plate (29) opposite to the guide groove is fixedly connected with an extrusion block (30); the inner parts of the guide grooves are fixedly connected with first air bags (31), and the first air bags (31) are communicated with the safety groove (21) through pipelines; through holes (32) are formed in the bottoms of the ball grooves (28); the bottom of the safety groove (21) is provided with a row of holes (33).

9. An electro-tricycle for transportation according to claim 8, characterized in that: mounting grooves are formed between the two ball grooves (28); the inside of the mounting groove is provided with a ball (34).

10. An electro-tricycle for transportation according to claim 9, characterized in that: the bottom of the safety groove (21) is fixedly connected with second air bags (35) which are uniformly arranged; a control groove (36) is formed in the bottom of the ball (34) in the shaped plate (25), and the control groove (36) is communicated with the corresponding second air bag (35) through a pipeline; the control grooves (36) are fixedly connected with telescopic bags (37) inside; the top surface of the telescopic bag (37) is fixedly connected with a control block (38); and the top surface of the control block (38) is fixedly connected with a friction plate (39).

Technical Field

The invention relates to the field of electric vehicles, in particular to an electric tricycle for transportation.

Background

The electric tricycle is used as a transport tool driven by an electric motor, and plays an important role in short-distance quick freight and household travel.

According to the CN110065572A electric tricycle carriage, according to the technical scheme, the limiting plates are combined on the box plate, the positions and the angles of the limiting plates can be limited under the matching of the connecting channel, the connecting column and the connecting block, and then the positions of the limiting plates can be adjusted according to actual needs to adapt to different transported objects

However, in the prior art, when the electric tricycle is used for carrying goods, because the carriage of the electric tricycle is away from the ground by a certain distance, the goods are basically carried manually when being loaded and unloaded, and under the condition of carrying patients or disabled persons, people are required to assist the people to get on or off, particularly for the disabled people sitting on the wheelchair, the wheelchair and the disabled persons need to be specially separated to ensure the safety of getting on or off the vehicle.

To this end, the invention proposes an electric tricycle for transport.

Disclosure of Invention

In order to solve the problem that in the prior art, when an electric tricycle is used for carrying goods, due to the fact that a carriage of the electric tricycle is a certain distance away from the ground, the goods are basically carried manually when being loaded and unloaded, and under the condition that patients or disabled persons are carried, people are required to assist the people to get on and off, particularly for the disabled people sitting on a wheelchair, the wheelchair and the disabled persons need to be specially separated to ensure the safety of getting on and off the vehicle, the invention provides the electric tricycle for transportation.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an electric tricycle for transportation, which comprises a tricycle body, a compartment and a motor, wherein the tricycle body is provided with a left wheel and a right wheel; the top of the vehicle body is fixedly connected with a carriage; a connecting block is arranged in the carriage and close to the tail of the vehicle; a motor is fixedly connected to the position, close to the top of the connecting block, in the connecting block; the output shaft of the motor is fixedly connected with a first bevel gear; the surface of the connecting block is rotatably connected with a screw rod; a second bevel gear is fixedly connected to the surface of the screw rod close to the top of the screw rod, and the second bevel gear is in meshed connection with the first bevel gear; the surface of the nut of the screw rod is fixedly connected with a connecting rod; the surface of the connecting rod is rotatably connected with a bearing plate at a position close to the bottom of the connecting rod; when the device works, the motor is controlled to rotate, the nut of the screw rod is finally driven to move up and down through the transmission fit among the motor, the first bevel gear and the second bevel gear, the nut of the screw rod can drive the connecting rod to move up and down, the bearing plate can be driven to move through the connecting rod, when goods are carried up and down or people get on and off, particularly for the people who take the wheelchair, the wheelchair can be directly taken to move to the top of the bearing plate, then the bearing plate is controlled to move up and down to realize the rapid and safe getting on and off of the goods or the personnel, the invention adds the automatic lifting functional component at the tail part of the electro-tricycle, is convenient for the loading and unloading of the goods by workers and the riding of the passengers, reduces the working strength of the loading and unloading of the goods by the workers, meanwhile, for special people, the bearing plate can be directly lifted up and down automatically, more auxiliary personnel are not needed, and short-distance quick travel of the special personnel is facilitated.

Preferably, a sliding groove is formed in the carriage; the outer contour of the connecting block is designed into a rectangular structure, and the connecting block is connected to the inside of the sliding groove in a sliding manner; the during operation slides in the inside of spout through the connecting block, rotates as the motor to when driving the bearing plate upward movement, make passenger or goods on the bearing plate remove the oral area position in carriage, promote the connecting block through personnel this moment, make passenger or goods on the bearing plate can directly carry the inside in carriage, guarantee special case passenger crowd's safety of getting on or off the bus, also conveniently do benefit to the putting things in good order of goods simultaneously.

Preferably, the bottom surface of the pressure bearing plate is provided with a first pressure groove; a first pressure block is connected inside the first pressure groove in a sliding manner; a first spring is fixedly connected between the first pressure block and the bottom of the first pressure groove; a second pressure groove is formed in the connecting block and is close to the bottom of the connecting block, and the second pressure groove is communicated with the first pressure groove through a pipeline; a second pressure block is connected inside the second pressure groove in a sliding manner; clamping grooves which are uniformly distributed are formed in the position, on the second pressure block, of the surface of the screw rod; when the pressure-bearing plate moves downwards, the pressure-bearing plate can easily extrude feet of bottom personnel, in order to improve the use safety of the pressure-bearing plate, when the pressure-bearing plate is not in contact with the ground and foreign matters appear at the bottom of the pressure-bearing plate, the first pressure block at the bottom of the pressure-bearing plate can be extruded by the foreign matters, the first pressure block can be automatically and internally collected into the first pressure groove, so that the air pressure in the first pressure groove is increased, the air in the first pressure groove can be guided into the second pressure groove through a pipeline, so that the second pressure block in the second pressure groove is ejected out, the second pressure block can be automatically clamped into the clamping groove, the screw rod of the screw rod can stop rotating at the moment, after the foreign matters are removed, the first pressure block stops being extruded, further, the first pressure block automatically resets under the action of the first spring, and further the second pressure block can automatically reset under the action of the air pressure, the screw of the screw rod continues to rotate.

Preferably, the bottom of the nut of the screw rod is fixedly connected with a first telescopic rod; a supporting groove is formed in the bottom surface of the bearing plate, and the supporting groove is communicated with the first telescopic rod through a pipeline; a push plate is connected to the inside of the supporting groove in a sliding manner; a fixed block is fixedly connected to the middle position of the bottom surface of the push plate; the bottom surface of the push plate is fixedly connected with an elastic pad; the bottom of the elastic cushion is fixedly connected with uniformly arranged adjusting blocks; during operation, through setting up first telescopic link, when the nut of lead screw removed the bottommost position of its stroke, the first telescopic link of the nut bottom of lead screw can receive the extrusion, make the inside gas of first telescopic link enter into the inside of supporting the groove, and then make the push pedal of supporting the inslot portion remove, the push pedal can drive the fixed block of its bottom, cushion and regulating block all downstream, the fixed block can play the basis spacing, the regulating block is under the concertina movement effect of cushion, can be according to the topography of difference, carry out automatic adjustment, guarantee basically that all regulating blocks all contact the bottom surface, simultaneously when the bearing plate upward movement, fixed block and regulating block automatic inside up retract reset, ground if under the condition of earth, the bottom surface of earth at the bearing plate of having avoided bonding in a large number.

Preferably, the top surface of the bearing plate is provided with a safety groove; the bottom of the safety groove is provided with uniformly distributed telescopic grooves; the insides of the telescopic grooves are all connected with ejection columns in a sliding manner; elastic pieces are fixedly connected between the top column and the bottom of the corresponding telescopic groove; the tops of the top columns are fixedly connected with a shaped plate together; during operation, through setting up fore-set and shaped plate, remove the top position of bearing plate when goods or personnel, in order to guarantee goods or personnel at the security of bearing plate up-and-down motion in-process, receive the gravity extrusion of personnel or goods, the fore-set can the downstream to extrude the shell fragment, make the shaped plate indent that is located goods or personnel's position, realize automatic spacing.

Preferably, the side surface of the nut of the screw rod is fixedly connected with a second telescopic rod, and the second telescopic rod and the telescopic groove are communicated with each other through a pipeline; the surface of the connecting block is fixedly connected with a pressing plate close to the top of the connecting block; during operation, through setting up second telescopic link and clamp plate, when the screw rod upward movement of lead screw was to the clamp plate position, the second telescopic link of the screw rod side of lead screw can receive the extrusion of clamp plate for the inside gas of second telescopic link is impressed the inside in flexible groove, makes the fore-set of flexible inslot portion whole ejecting, and then the shaped plate is in planar state, at this moment, just does benefit to the aversion to shaped plate surface goods and personnel.

Preferably, the top surface of the shaped plate is provided with ball grooves which are uniformly distributed; the positions between two adjacent spherical grooves are designed in a spherical structure; during operation, through seting up even ball groove to the surface of shaped plate, when the shaped plate received top goods or personnel to extrude, deformation can take place for the ball groove opening of indent state position reduces or closes automatically, and the peripheral ball groove opening of indent increases, and then the peripheral coefficient of friction of indent state is bigger, and under the condition of rocking, further guarantees the stability of shaped plate top goods.

Preferably, the side surfaces of the bearing plates are provided with guide grooves; the guide plates are rotatably connected inside the guide grooves; a second spring is fixedly connected between the guide plate and the bottom of the guide groove; the side face of one side of the guide plate, which is opposite to the guide groove, is fixedly connected with an extrusion block; the inner parts of the guide grooves are fixedly connected with first air bags, and the first air bags are communicated with the safety groove through pipelines; through holes are formed in the bottoms of the ball grooves; the bottom of the safety groove is provided with a row of holes; the during operation, through setting up the deflector, the deflector can play the guide effect, just do benefit to the shallow, the top that directly pushes away the bearing plate such as wheelchair, when the bearing plate touches the bottom surface, the deflector of bearing plate side receives ground extrusion can automatic rotation, and extrude first gasbag, make the inside of the leading-in safety slot of the inside gas of first gasbag, the great atmospheric pressure in the short time can promote switching on of through-hole and exhaust hole, and then when guaranteeing rainy day, water can flow in the safety slot through the through-hole fast, and finally derive through the exhaust hole, the surface ponding of bearing plate has been avoided and is in the wet and slippery state.

Preferably, an installation groove is formed between the two ball grooves; balls are arranged inside the mounting grooves; the during operation sets up the ball through the surface at the shaped plate, and when the shaped plate indent, adjacent ball can be extruded together, and extrusion state ball can not carry out direct rotation this moment, guarantees to be located the goods of this position and personnel's positional stability, and when the shaped plate was in the plane state, stopped mutual extrusion between the ball simultaneously, promotes the goods this moment and can easily unload.

Preferably, the bottom of the safety groove is fixedly connected with second air bags which are uniformly arranged; a control groove is formed in the inner part of the shaped plate at the bottom of the ball, and the control groove and the corresponding second air bag are communicated with each other through a pipeline; the inner parts of the control grooves are fixedly connected with telescopic bags; the top surface of the telescopic bag is fixedly connected with a control block; the top surface of the control block is fixedly connected with a friction plate; during operation, through setting up the second gasbag, when the shaped plate received extrusion and indent, the shaped plate of indent state position can extrude the second gasbag for the inside of the leading-in expansion bag of the inside gas of second gasbag, make the expansion bag extend from top to bottom, the expansion bag can drive the upward motion of control block, and then the control block can drive the friction disc upward movement, makes friction disc automatic extrusion correspond the ball, guarantees that the ball is in fixed state this moment.

The invention has the advantages that:

1. according to the invention, the vehicle body, the carriage and the motor are arranged, the motor drives the screw rod to rotate, and the screw rod drives the bearing plate to move up and down through the connecting rod, so that the automatic loading and unloading of the electric tricycle for goods or passengers is effectively facilitated, the working strength of loading and unloading of the goods by workers is reduced, meanwhile, the bearing plate can be directly and automatically loaded up and down for special people, more auxiliary personnel are not needed, and the short-distance quick trip of the special personnel is facilitated.

2. According to the invention, by arranging the top column and the shaped plate, when goods or personnel move to the top position of the pressure bearing plate, in order to ensure the safety of the goods or personnel in the up-and-down movement process of the pressure bearing plate, the top column can move downwards and extrude the elastic sheet, so that the shaped plate at the position of the goods or personnel is concave inwards, and automatic limiting is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic structural view of a bearing plate of the present invention;

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

FIG. 6 is a cross-sectional view of the shaped plate of the present invention;

FIG. 7 is a schematic view of the structure of the ball of the present invention;

fig. 8 is a partial enlarged view at C in fig. 7.

In the figure: the vehicle comprises a vehicle body 1, a carriage 2, a motor 3, a connecting block 4, a first bevel gear 5, a screw rod 6, a second bevel gear 7, a connecting rod 8, a bearing plate 9, a sliding groove 10, a first pressure block 11, a first spring 12, a second pressure block 13, a clamping groove 14, a first telescopic rod 15, a supporting groove 16, a push plate 17, a fixing block 18, an elastic pad 19, an adjusting block 20, a safety groove 21, a telescopic groove 22, a top column 23, an elastic sheet 24, a shaped plate 25, a second telescopic rod 26, a pressing plate 27, a ball groove 28, a guide plate 29, an extrusion block 30, a first air bag 31, a through hole 32, a row hole 33, a ball 34, a second air bag 35, a control groove 36, a telescopic bag 37, a control block 38 and a friction sheet 39.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 6, an electric tricycle for transportation includes a tricycle body 1, a tricycle body 2, and a motor 3; the top of the vehicle body 1 is fixedly connected with a carriage 2; a connecting block 4 is arranged in the carriage 2 and close to the tail of the vehicle; the motor 3 is fixedly connected to the position, close to the top of the connecting block 4, in the connecting block 4; the output shaft of the motor 3 is fixedly connected with a first bevel gear 5; the surface of the connecting block 4 is rotatably connected with a screw rod 6; a second bevel gear 7 is fixedly connected to the surface of the screw rod 6 close to the top of the screw rod 6, and the second bevel gear 7 is in meshed connection with the first bevel gear 5; the surface of the nut of the screw rod 6 is fixedly connected with a connecting rod 8; the surface of the connecting rod 8 is rotatably connected with a bearing plate 9 at a position close to the bottom of the connecting rod 8; when the device works, the motor 3 is controlled to rotate, the nut of the screw rod 6 is finally driven to move up and down through the transmission fit among the motor 3, the first bevel gear 5 and the second bevel gear 7, the nut of the screw rod 6 can drive the connecting rod 8 to move up and down, the bearing plate 9 can be driven to move through the connecting rod 8, when goods are conveyed up and down or people get on and off, particularly for the person who takes the wheelchair, the person can directly take the wheelchair to move to the top of the bearing plate 9, then the bearing plate 9 is controlled to move up and down to realize the rapid and safe getting on and off of the goods or the personnel, the invention adds the automatic lifting functional component at the tail part of the electro-tricycle, is convenient for the loading and unloading of the goods by workers and the riding of the passengers, reduces the working strength of the loading and unloading of the goods by the workers, meanwhile, for special people, the bearing plate 9 can be directly lifted up and down, more auxiliary personnel are not needed, and short-distance quick travel of the special personnel is facilitated.

A sliding groove 10 is formed in the carriage 2; the outer contour of the connecting block 4 is designed to be a rectangular structure, and the connecting block 4 is connected to the inside of the sliding groove 10 in a sliding manner; the during operation slides in the inside of spout 10 through connecting block 4, rotates when motor 3 to when driving bearing plate 9 upward movement, make passenger or goods on the bearing plate 9 remove the oral area position in carriage 2, promote connecting block 4 through personnel this moment, make passenger or goods on the bearing plate 9 can directly carry the inside in carriage 2, guarantee special case passenger crowd's the safety of getting on or off the bus, also conveniently do benefit to the stacking of goods simultaneously.

A first pressure groove is formed in the bottom surface of the pressure bearing plate 9; a first pressure block 11 is connected inside the first pressure groove in a sliding manner; a first spring 12 is fixedly connected between the first pressure block 11 and the bottom of the first pressure groove; a second pressure groove is formed in the connecting block 4 and is close to the bottom of the connecting block 4, and the second pressure groove is communicated with the first pressure groove through a pipeline; a second pressure block 13 is connected inside the second pressure groove in a sliding manner; clamping grooves 14 which are uniformly distributed are formed in the positions, on the second pressure block 13, of the screw rod surface of the screw rod 6; when the pressure-bearing plate 9 moves downwards, the pressure-bearing plate 9 can easily extrude feet of people on the bottom surface, in order to improve the use safety of the pressure-bearing plate 9, when the pressure-bearing plate 9 is not in contact with the ground and foreign matters are generated at the bottom of the pressure-bearing plate 9, the first pressure block 11 on the bottom surface of the pressure-bearing plate 9 can be extruded by the foreign matters, the first pressure block 11 can be automatically and internally collected into the first pressure groove, so that the air pressure in the first pressure groove is increased, the air in the first pressure groove can be guided into the second pressure groove through a pipeline, so that the second pressure block 13 in the second pressure groove is ejected, the second pressure block 13 can be automatically clamped into the clamping groove 14, at the moment, the screw of the screw rod 6 stops rotating, after the foreign matters are removed, the first pressure block 11 stops being extruded, and under the action of the first spring 12, the first pressure block 11 automatically resets, and then the second pressure block 13 can automatically reset under the action of air pressure, and the screw rod of the screw rod 6 continues to rotate.

The bottom of the nut of the screw rod 6 is fixedly connected with a first telescopic rod 15; a supporting groove 16 is formed in the bottom surface of the pressure bearing plate 9, and the supporting groove 16 is communicated with the first telescopic rod 15 through a pipeline; a push plate 17 is connected to the inside of the supporting groove 16 in a sliding manner; a fixed block 18 is fixedly connected to the middle of the bottom surface of the push plate 17; the bottom surface of the push plate 17 is fixedly connected with an elastic pad 19; the bottom of the elastic cushion 19 is fixedly connected with adjusting blocks 20 which are uniformly arranged; during operation, through setting up first telescopic link 15, when the nut of lead screw 6 moved the bottommost position of its stroke, the first telescopic link 15 of the nut bottom of lead screw 6 can receive the extrusion, make the inside gas of first telescopic link 15 enter into the inside of supporting groove 16, and then make the inside push pedal 17 of supporting groove 16 remove, push pedal 17 can drive the fixed block 18 of its bottom, elastic pad 19 and regulating block 20 all downstream, fixed block 18 can be spacing in order to play the basis, regulating block 20 is under elastic pad 19's telescopic action, can be according to the topography of difference, automatic adjustment carries out, guarantee basically all regulating block 20 all contact the bottom surface, simultaneously when bearing plate 9 upward movement, fixed block 18 and regulating block 20 automatic upwards adduction return, ground is if under the condition that has earth, avoided a large amount of earth to bond in the bottom surface of bearing plate 9.

The top surface of the pressure bearing plate 9 is provided with a safety groove 21; the bottom of the safety groove 21 is provided with uniformly distributed telescopic grooves 22; the insides of the telescopic grooves 22 are all connected with ejection columns 23 in a sliding manner; elastic sheets 24 are fixedly connected between the top column 23 and the bottom of the corresponding telescopic groove 22; the tops of the top columns 23 are fixedly connected with a shaped plate 25; during operation, through setting up fore-set 23 and shaped plate 25, remove the top position of pressure-bearing plate 9 when goods or personnel, receive the gravity extrusion of personnel or goods in order to guarantee the security of goods or personnel in the process of moving from top to bottom at pressure-bearing plate 9, fore-set 23 can move down to extrude shell fragment 24, make the shaped plate 25 indent that is located goods or personnel's position, realize automatic spacing.

The side surface of the nut of the screw rod 6 is fixedly connected with a second telescopic rod 26, and the second telescopic rod 26 is communicated with the telescopic groove 22 through a pipeline; a pressing plate 27 is fixedly connected to the surface of the connecting block 4 close to the top of the connecting block 4; during operation, through setting up second telescopic link 26 and clamp plate 27, when the screw rod upward movement of lead screw 6 arrived clamp plate 27 position, the second telescopic link 26 of the screw rod side of lead screw 6 can receive the extrusion of clamp plate 27 for the inside gas of second telescopic link 26 is impressed the inside of flexible groove 22, makes the inside fore-set 23 of flexible groove 22 all ejecting, and then shaped plate 25 is in the planar state, at this moment, just does benefit to the aversion to shaped plate 25 surface goods and personnel.

The top surface of the shaped plate 25 is provided with ball grooves 28 which are uniformly distributed; the positions between two adjacent ball grooves 28 are designed in a spherical structure; during operation, through seting up even ball groove 28 to the surface of shaped plate 25, when shaped plate 25 received top goods or personnel to extrude, deformation can take place for the ball groove 28 opening of indent state position reduces automatically or closes, and the peripheral ball groove 28 opening of indent increases, and then the peripheral coefficient of friction of indent state is bigger, and under the condition of rocking, further guarantees shaped plate 25 top goods's stability.

The side surfaces of the bearing plates 9 are provided with guide grooves; the guide plates 29 are rotatably connected inside the guide grooves; a second spring is fixedly connected between the guide plate 29 and the bottom of the guide groove; the side faces of the guide plates 29, which are opposite to the side faces of the guide grooves, are fixedly connected with extrusion blocks 30; the inner parts of the guide grooves are fixedly connected with first air bags 31, and the first air bags 31 are communicated with the safety groove 21 through pipelines; through holes 32 are formed in the bottoms of the ball grooves 28; the bottom of the safety groove 21 is provided with a row of holes 33; the during operation, through setting up deflector 29, deflector 29 can play the guide effect, be favorable to the shallow, the top that directly pushes away pressure-bearing plate 9 such as wheelchair, when pressure-bearing plate 9 contacts the bottom surface, deflector 29 of pressure-bearing plate 9 side receives ground extrusion can automatic rotation, and extrude first gasbag 31, make the inside gaseous leading-in safety groove 21's of first gasbag 31 inside, the switching on of through-hole 32 and exhaust 33 can be promoted to great atmospheric pressure in the short time, and then when guaranteeing rainy day, water can flow into safety groove 21 through-hole 32 fast, and finally derive through exhaust 33, the surface ponding of pressure-bearing plate 9 has been avoided and is in the wet and slippery state.

Example two

Referring to fig. 7 and 8, mounting grooves are formed between the two ball grooves 28; the ball 34 is arranged inside each mounting groove; during operation, through set up ball 34 on the surface of shaped plate 25, when the shaped plate 25 indent, adjacent ball 34 can extrude together, and extrusion state ball 34 can not directly rotate this moment, guarantees the goods that are located this position and personnel's positional stability, and when shaped plate 25 was in the plane state, the mutual extrusion of stopping between ball 34 simultaneously, promotes the goods this moment and can easily unload.

The bottom of the safety groove 21 is fixedly connected with second air bags 35 which are uniformly arranged; a control groove 36 is formed in the bottom of the ball 34 in the shaped plate 25, and the control groove 36 is communicated with the corresponding second air bag 35 through a pipeline; the control grooves 36 are fixedly connected with telescopic bags 37 inside; the top surface of the telescopic bag 37 is fixedly connected with a control block 38; the top surface of the control block 38 is fixedly connected with a friction plate 39; during operation, through setting up second gasbag 35, when the shaped plate 25 received the extrusion and the indent, the shaped plate 25 of indent state position can extrude second gasbag 35 for the inside of the leading-in expansion bag 37 of the inside gas of second gasbag 35, make expansion bag 37 extend from top to bottom, expansion bag 37 can drive control block 38 upward movement, control block 38 then can drive friction disc 39 upward movement, make friction disc 39 automatic extrusion correspond ball 34, guarantee this moment ball 34 be in the stationary state.

According to the working principle, the motor 3 is controlled to rotate, the nut of the screw rod 6 is finally driven to move up and down through the transmission fit among the motor 3, the first bevel gear 5 and the second bevel gear 7, the nut of the screw rod 6 can drive the connecting rod 8 to move up and down, the connecting rod 8 can drive the bearing plate 9 to move, when a person carries goods up and down or gets on or off the person, particularly for the person taking the wheelchair, the person can directly take the wheelchair to move to the top of the bearing plate 9, then the bearing plate 9 is controlled to move up and down, and the goods or the person can get on or off the vehicle quickly and safely; through the sliding of the connecting block 4 in the chute 10, when the motor 3 rotates and drives the bearing plate 9 to move upwards, passengers or goods on the bearing plate 9 move to the position of the opening of the carriage 2, and at the moment, the passengers or goods on the bearing plate 9 can be directly conveyed into the carriage 2 by pushing the connecting block 4 through personnel, so that the safety of passengers or people getting on or off the vehicle under special conditions is ensured, and meanwhile, the stacking of the goods is facilitated; by arranging the first pressure block 11 and the second pressure block 13, when the pressure-bearing plate 9 moves downwards, the pressure-bearing plate 9 can easily extrude feet of people on the bottom surface, in order to improve the use safety of the pressure-bearing plate 9, when the pressure-bearing plate 9 does not contact the ground and foreign matters appear at the bottom of the pressure-bearing plate 9, the first pressure block 11 at the bottom surface of the pressure-bearing plate 9 can be extruded by the foreign matters, the first pressure block 11 can be automatically and internally collected into the first pressure groove, so that the air pressure in the first pressure groove is increased, the air in the first pressure groove can be guided into the second pressure groove through a pipeline, so that the second pressure block 13 in the second pressure groove is ejected, the second pressure block 13 can be automatically clamped into the clamping groove 14, at the moment, the screw rod of the screw rod 6 can stop rotating, after the foreign matters are removed, the first pressure block 11 stops being extruded, and the first pressure block 11 automatically resets under the action of the first spring 12, the second pressure block 13 can automatically reset under the action of air pressure, and the screw rod of the screw rod 6 continues to rotate; by arranging the first telescopic rod 15, when the nut of the screw rod 6 moves to the bottommost position of the stroke, the first telescopic rod 15 at the bottom of the nut of the screw rod 6 is extruded, so that gas in the first telescopic rod 15 enters the supporting groove 16, and further a push plate 17 in the supporting groove 16 moves, the push plate 17 can drive a fixed block 18, an elastic cushion 19 and an adjusting block 20 at the bottom of the push plate to move downwards, the fixed block 18 can achieve basic limiting, the adjusting block 20 can be automatically adjusted according to different terrains under the telescopic action of the elastic cushion 19, all the adjusting blocks 20 are basically guaranteed to be in contact with the bottom surface, meanwhile, when the bearing plate 9 moves upwards, the fixed block 18 and the adjusting block 20 are automatically retracted upwards, and if soil exists on the ground, a large amount of soil is prevented from being adhered to the bottom surface of the bearing plate 9; by arranging the top column 23 and the shaped plate 25, when goods or personnel move to the top position of the pressure bearing plate 9, in order to ensure the safety of the goods or personnel in the up-and-down movement process of the pressure bearing plate 9, the top column 23 can move downwards and extrude the elastic sheet 24, so that the shaped plate 25 at the position of the goods or personnel is inwards concave, and automatic limiting is realized; by arranging the second telescopic rod 26 and the pressing plate 27, when the screw rod of the screw rod 6 moves upwards to the position of the pressing plate 27, the second telescopic rod 26 on the side surface of the screw rod 6 is extruded by the pressing plate 27, so that the gas in the second telescopic rod 26 is pressed into the telescopic groove 22, all the ejection columns 23 in the telescopic groove 22 are ejected out, and the shaped plate 25 is in a planar state, and the displacement of goods and personnel on the surface of the shaped plate 25 is facilitated; by arranging the uniform ball grooves 28 on the surface of the shaped plate 25, the shaped plate 25 can deform when being squeezed by goods or personnel on the top, so that the openings of the ball grooves 28 in the concave positions are automatically reduced or closed, the openings of the ball grooves 28 around the concave positions are increased, the friction coefficient of the periphery around the concave positions is larger, and the stability of the goods on the top of the shaped plate 25 is further ensured under the shaking condition; through the arrangement of the guide plate 29, the guide plate 29 can play a role in guiding, and is convenient for a cart, a wheelchair and the like to directly push the top of the bearing plate 9, when the bearing plate 9 contacts the bottom surface, the guide plate 29 on the side surface of the bearing plate 9 is extruded by the ground to automatically rotate and extrude the first air bag 31, so that air in the first air bag 31 is led into the safety groove 21, the conduction of the through hole 32 and the discharge hole 33 can be promoted by higher air pressure in a short time, and further, when rainy days are ensured, water can quickly flow into the safety groove 21 through the through hole 32 and finally is led out through the discharge hole 33, and the surface water accumulation of the bearing plate 9 is avoided and is in a wet and slippery state; by arranging the balls 34 on the surface of the shaped plate 25, when the shaped plate 25 is concave, the adjacent balls 34 are extruded together, at the moment, the balls 34 in the extrusion state cannot directly rotate, so that the position stability of goods and personnel at the position is ensured, meanwhile, when the shaped plate 25 is in a plane state, the balls 34 stop being mutually extruded, and at the moment, the goods can be easily unloaded by pushing the goods; through setting up second gasbag 35, when the shaped plate 25 received the extrusion and when the indent, the shaped plate 25 of indent state position can extrude second gasbag 35 for the inside of the leading-in expansion bag 37 of the inside gas of second gasbag 35, make expansion bag 37 extend from top to bottom, and expansion bag 37 can drive control block 38 upward movement, and control block 38 then can drive friction disc 39 upward movement, makes friction disc 39 automatic extrusion correspond ball 34, guarantees that ball 34 is in fixed state this moment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but 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 thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.