CN211470660U - Lifting mechanism facilitating carrying of luggage by passengers - Google Patents

Abstract

The utility model discloses a lifting mechanism which is convenient for passengers to carry luggage, comprising a sweep and a lifting plate positioned above the sweep; at least three wheels are arranged below the sweep, and the wheels are respectively connected with the steering device and the wheel driving device; the vehicle plate is provided with a hydraulic telescopic device used for adjusting the position of a lifting plate used for placing luggage in the vertical direction, the hydraulic telescopic device drives an oil pump through a hydraulic motor, oil is brought into a hydraulic telescopic cylinder or the oil in the hydraulic telescopic cylinder is pumped out, and the position of the lifting plate is adjusted by controlling the telescopic of the hydraulic telescopic device through changing the liquid level of the oil in the hydraulic telescopic cylinder; the lifting plate is provided with a luggage push plate for pushing luggage, the luggage push plate is connected with the screw rod, the screw rod is provided with a screw rod driving device, and the screw rod is driven by the screw rod driving device to enable the luggage push plate to move along the arrangement direction of the screw rod. The utility model has simple structure, high automation degree, stable operation and good safety; reliable structure, simple operation and low cost.

Description

A lifting mechanism that facilitates passengers to carry luggage

technical field

The utility model belongs to the technical field of transportation and relates to a lifting mechanism for facilitating passengers to carry luggage, in particular to a lifting mechanism for helping passengers to carry luggage on a train or high-speed rail.

Background technique

The train is a common means of transportation in China. The current train luggage rack generally adopts a fixed suspension type, which is fixed on the car wall above the window of the carriage by screws, and its height is generally higher than the window. Luggage can only be placed on the luggage rack by lifting it overhead, and passengers with short stature and large luggage will need to stand on the seat to store luggage on the luggage rack. For the elderly, children, short stature and weak groups, it is undoubtedly difficult to carry luggage onto the luggage rack. In addition, improper placement of luggage or improper handling during handling can easily cause luggage to fall in the air. May cause harm to yourself and those around you.

Therefore, an automatic lifting and lowering equipment for luggage that can realize automatic handling, has good handling stability and good safety is developed.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art that luggage racking is not safe and consumes physical strength, and provides a luggage automatic lifting device that can realize automatic handling, good handling stability and safety, which can not only realize automatic lifting and lowering The effect of carrying (luggage racking) can also be moved and retracted, which saves the space occupied when it is not needed (luggage racking is completed), and has a good application prospect.

To achieve the above object, the utility model provides the following technical solutions:

A lift mechanism for facilitating passengers to carry luggage, comprising a car board and a lift board located above the car board;

There are at least three wheels under the vehicle panel (three wheels can ensure the stability of the vehicle panel at a minimum), and the wheels are respectively connected with the steering device and the wheel drive device, and the wheel drive device is used to drive the wheels. The steering device is used to change the direction of the wheel, that is, to adjust the movement direction of the lifting mechanism;

The vehicle deck is provided with a hydraulic telescopic device for adjusting the position of the lift plate for placing luggage in the vertical direction. The hydraulic telescopic device drives an oil pump through a hydraulic motor to bring the oil into the hydraulic expansion cylinder or the hydraulic expansion and contraction device. The oil in the cylinder is drawn out, and the position of the lifting plate is adjusted by changing the oil level in the hydraulic expansion cylinder to control the expansion and contraction of the hydraulic expansion device;

The lift plate is provided with a luggage push plate for pushing luggage, the luggage push plate is connected with a lead screw, and a lead screw drive device is arranged on the lead screw, and the lead screw is driven by the lead screw drive device to push the luggage The plate moves in the direction of the screw arrangement.

The lifting and lowering mechanism of the utility model that facilitates passengers to carry luggage can not only realize the lifting and lowering of the luggage through the hydraulic telescopic device, but also the design of the luggage push plate can conveniently push the luggage into the luggage rack, which is more convenient than the existing luggage grabbing and the like. In the form of racking, the luggage racking process of the utility model has good stability, even if the equipment is powered off or fails, there will be no accidents such as luggage falling that may cause personal or property loss, and at the same time, the overall structure is reliable, and the cost is low. application prospects.

As the preferred technical solution:

In the above-mentioned lifting mechanism for convenient passengers to carry luggage, there are four wheels, and the four wheels are coaxial two by two, including two front wheels and two rear wheels. The protection scope of the present invention is not limited to this, and this time only a feasible technical solution is listed. Those skilled in the art can select a suitable number of wheels and a suitable wheel arrangement according to actual needs.

As mentioned above, a lifting mechanism that facilitates passengers to carry luggage, the wheel drive device is a wheel drive motor respectively connected to the two rear wheels, the output shaft of the wheel drive motor is connected to the rear wheel, and the wheel drive motor can be Driving the rear wheel is to drive the lifting mechanism forward or backward. Of course, the protection scope of the present invention is not limited to this. The wheel drive motor can also be installed on the front wheel. Those skilled in the art can select a suitable driving form according to the actual situation.

In the above-mentioned lifting mechanism for facilitating passengers to carry luggage, the two front wheels are connected with the bogie rack arranged between the two front wheels through the bogie frame and the bogie frame holder in turn;

The steering device is a steering motor, the steering motor is fixedly connected to the vehicle board through a steering motor support, and a steering motor gear matched with the rack rack is installed on its output shaft;

The steering of the two front wheels can be realized by controlling the steering motor.

As mentioned above, a lifting mechanism for convenient passengers to carry luggage, the hydraulic expansion device includes a hydraulic expansion device motor device and a hydraulic expansion cylinder;

The hydraulic telescopic cylinder is installed on the car board, and its telescopic end is fixedly connected with the lifting plate;

The motor device of the hydraulic telescopic device includes a hydraulic motor and an oil pump, a hydraulic motor gear is installed on the output shaft of the hydraulic motor, an oil pump gear is installed on the output shaft of the oil pump, and the hydraulic motor gear and the oil pump gear are transmitted through the middle. Gear transmission, the oil pump is communicated with the hydraulic telescopic cylinder through an oil pipe.

As mentioned above, a lifting mechanism for convenient passengers to carry luggage, the oil pump gear is fixed on the output shaft of the oil pump through an axial fixing nut;

The intermediate transmission gear is fixed on the vehicle board by bolts through the intermediate transmission gear holder;

The hydraulic motor and the oil pump are fixedly connected with the vehicle board through bolts.

As mentioned above, a lifting mechanism for facilitating passengers to carry luggage has two hydraulic telescopic cylinders. The two hydraulic telescopic cylinders have the same shape and structure. The design of the double hydraulic telescopic cylinders can significantly improve the stability and safety of the lifting process of the lifting plate. it is good;

The hydraulic telescopic cylinder includes a first-stage hydraulic cylinder, a second-stage hydraulic cylinder, a third-stage hydraulic cylinder and a fourth-stage hydraulic cylinder connected in sequence;

The first-stage hydraulic cylinder is fixedly connected to the vehicle plate through the first hydraulic cylinder fixing flange, and the first-stage hydraulic cylinder is fixedly connected to the second-stage hydraulic cylinder through the upper connecting flange; the first-stage hydraulic cylinder is composed of two sections. The two sections are connected by the middle connecting flange, and around the first-stage hydraulic cylinder, there are a plurality of supporting and protecting screws between the middle connecting flange and the upper connecting flange and between the middle connecting flange and the car plate , on the one hand, it is used to improve the stability of the hydraulic telescopic cylinder structure, and on the other hand, in order to prevent the hydraulic telescopic cylinder from colliding with other objects, causing equipment damage.

As mentioned above, the lifting mechanism is convenient for passengers to carry luggage, wherein the lifting plate is parallel to the vehicle plate;

The luggage push plate is vertical to the lift plate;

A plurality of mutually parallel grooves are opened on the lift plate, and lead screws are arranged in the grooves. Fixed, the special-shaped nut is in the form of a sheet as a whole, and it is threadedly connected with the lead screw;

The end of the lead screw near the special-shaped nut is provided with a round-headed common flat key for limiting the position of the lead screw.

As mentioned above, a lifting mechanism that is convenient for passengers to carry luggage, the screw shaft V pulley is installed at the end of the lead screw near the special-shaped nut, and the lead screw shaft V pulley is coaxial with the lead screw and is nested in the circle. On the ordinary flat key ((make the V pulley and the lead screw rotate synchronously);

The lead screw drive device includes a lead screw drive motor mounted on the lower surface of the lift plate;

The output shaft of the screw drive motor is provided with a motor output shaft V pulley that is coaxial with it, and a V belt is installed between the motor output shaft V pulley and each screw shaft V pulley. The power of the screw drive motor is transmitted to each screw.

A kind of lifting mechanism that is convenient for passengers to carry luggage as mentioned above, the bolt I is covered with a gasket;

There are three lead screws parallel to each other and equidistantly arranged on the lifting plate. The output shaft of the lead screw drive motor is located directly below the middle lead screw. When the lead screw drive motor operates, the three lead screws are in the V-belt. Under the driving, it will rotate synchronously, that is, it will drive the luggage push plate to move at the same time, and the three lead screws can be evenly stressed, which can increase the driving force while improving the durability of the equipment;

The lead screw drive motor is bolted to the lift plate through the lead screw drive motor support.

Beneficial effects:

(1) The lifting mechanism of the present utility model, which is convenient for passengers to carry luggage, has simple structure, high degree of automation, stable operation process and good safety;

(2) The lifting and lowering mechanism of the present utility model, which is convenient for passengers to carry luggage, has reliable structure, simple operation and low cost, and has great application prospects.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the lifting mechanism of the utility model which is convenient for passengers to carry luggage;

Figures 2 and 3 are respectively a top view and a schematic diagram of the front wheel assembly;

Fig. 4 is the top view of the undercarriage structure of the utility model;

5 is a schematic diagram of the motor device of the hydraulic telescopic device of the present invention;

6 is a schematic diagram of a hydraulic telescopic cylinder in the hydraulic telescopic device of the present invention;

7 and 8 are the right side view and the front view of the relevant components on the lift plate of the present invention;

Fig. 9 is the schematic diagram of the nut screw device of the present invention;

Among them, 1- luggage push plate, 2- bolt I, 3- special-shaped nut, 4- lift plate, 5- lead screw shaft V pulley, 6- lead screw, 7- V belt, 8- lead screw drive motor support , 9-screw drive motor, 10-motor output shaft V pulley, 11-first hydraulic cylinder I, 12-oil pump gear, 13-intermediate transmission gear, 14-hydraulic motor gear, 15-hydraulic motor, 16-car Plate, 17- Left Rear Wheel, 18- First Hydraulic Cylinder Fixing Flange, 19- Bogie Frame Holder, 20- Left Front Wheel, 21- Middle Connection Flange, 22- First Stage Hydraulic Cylinder II, 23- Support and protection screw, 24-Second-stage hydraulic cylinder II, 25-Upper connecting flange, 28-Gasket, 29-Round head ordinary flat key, 32-First-stage hydraulic cylinder, 33-Second-stage hydraulic cylinder, 34 -Third-stage hydraulic cylinder, 35-Fourth-stage hydraulic cylinder, 36-Oil pump, 37-Axial fixing nut, 38-Intermediate transmission gear cage, 39-Intermediate transmission gear shaft, 40-Hydraulic motor output shaft, 41- Bogie rack rack, 42-steering motor support, 43-steering motor, 45-steering motor gear, 47-steering wheel frame, 48-right front wheel, 49-right rear wheel, 50-right rear wheel drive motor.

Detailed ways

The specific embodiments of the present utility model will be further described below with reference to the accompanying drawings.

A lift mechanism for facilitating passengers to carry luggage, as shown in FIG. 1 , includes a car board 16 and a lift board 4 located above and parallel to the car board 16;

There are four wheels under the car board 16, and the four wheels are coaxial, including two front wheels and two rear wheels. The two rear wheels are respectively connected with the output shafts of the two-wheel drive motors, as shown in Figure 4, the The rear wheel 49 is connected with the output shaft of the right rear wheel drive motor 50;

The two front wheels (left front wheel 20 and right front wheel 48), as shown in Figures 2 and 3, pass through the bogie frame 47, the bogie frame holder 19 and the bogie frame rack 41 arranged between the two front wheels in turn. The steering motor 43 is fixedly connected to the vehicle board 16 through the steering motor support 42, and its output shaft is provided with a steering motor gear 45 matched with the bogie rack rack 41, and the steering of the two front wheels can be realized by controlling the steering motor. ;

The car board 16 is provided with a hydraulic telescopic device for adjusting the position of the lift plate 4 for placing luggage in the vertical direction. Two hydraulic telescopic cylinders with the same shape and structure;

The hydraulic telescopic cylinder includes a first-stage hydraulic cylinder 32, a second-stage hydraulic cylinder 33, a third-stage hydraulic cylinder 34 and a fourth-stage hydraulic cylinder 35 connected in sequence;

The first-stage hydraulic cylinder 32 is fixedly connected to the vehicle deck 16 through the first hydraulic-cylinder fixing flange 18 , the first-stage hydraulic cylinder 32 is fixedly connected to the second-stage hydraulic cylinder 33 through the upper connecting flange 25 , and the first-stage hydraulic cylinder is It is composed of two sections, and the two sections are connected by the middle connecting flange 21. Around the first-stage hydraulic cylinder 32, there are multiple connecting flanges between the middle connecting flange 21 and the upper connecting flange 25 and between the middle connecting flange 21 and the car plate 16. The root supports and protects the screw 23, and the fourth-stage hydraulic cylinder 35 is fixedly connected with the lifting plate 4;

The motor device of the hydraulic telescopic device includes a hydraulic motor 15 and an oil pump 36, which are fixedly connected with the car board 16 by bolts;

The hydraulic motor gear 14 is installed on the output shaft 40 of the hydraulic motor 15, and the oil pump gear 12 is installed on the output shaft of the oil pump 36. The oil pump gear 12 is fixed on the output shaft of the oil pump by the axial fixing nut 37. The hydraulic motor gear 14 and the oil pump gear 12 is driven by the intermediate transmission gear 13, the intermediate transmission gear 13 is fixed on the car board 16 by bolts through the intermediate transmission gear holder 38, the oil pump 36 is communicated with the hydraulic expansion cylinder through the oil pipe, and the hydraulic expansion device drives the oil pump through the hydraulic motor to pump the oil. The oil brought into the hydraulic expansion cylinder or the hydraulic expansion cylinder is drawn out, and the adjustment of the position of the lifting plate is completed by changing the oil level in the hydraulic expansion cylinder to control the expansion and contraction of the hydraulic expansion device;

As shown in Figures 7, 8 and 9, the lift plate 4 is provided with a luggage push plate 1 which is used to push luggage and is perpendicular to the lift plate 4. The lift plate 4 is provided with three grooves that are parallel to each other and arranged at equal intervals. A lead screw 6 is arranged inside, the lead screw 6 is connected with the luggage push plate 1 through a special-shaped nut 3, the special-shaped nut 3 and the luggage push plate 1 are fixed by a bolt I 2, and a gasket 28 is sleeved on the bolt I 2, and the special-shaped nut 3 is integral In the shape of a sheet, it is threadedly connected with the lead screw 6. The end of the lead screw near the special-shaped nut is provided with a round-headed ordinary flat key 29 for limiting the position of the lead screw. , the screw shaft V pulley 5 is coaxial with the screw 6 and is nested on the circular common flat key 29;

A screw drive motor support 8 is installed on the lower surface of the lifting plate 4, the screw drive motor support 8 and the screw drive motor 9 are fixed by bolts, the output shaft of the screw drive motor 9 is located directly below the intermediate screw, the screw The output shaft of the drive motor 9 is provided with a motor output shaft V pulley 10 that is coaxial with it, and a V belt 7 is installed between the motor output shaft V pulley 10 and each screw shaft V pulley 5, and through the V belt 7 The power of the screw drive motor 9 is transmitted to each screw 6 .

The specific operation steps of the lifting mechanism of the present utility model that is convenient for passengers to carry luggage are as follows:

(1) The passenger moves the lifting mechanism to the designated position and puts the luggage on the luggage pusher 1;

(2) Turn on the power supply, the lifting mechanism drives the oil pump gear 12 to rotate through the hydraulic motor 15 from the original compressed state, and the oil flows out from the oil pump outlet through the oil pipe and enters the oil inlet of the hydraulic expansion cylinder. The first stage hydraulic cylinder will Move up, when the four-stage hydraulic cylinders are all raised, turn off the motor switch, at this time the entire workbench rises to a height flush with the luggage rack of the carriage;

(3) After the luggage (baggage push plate) rises to a position flush with the luggage rack, the lead screw drive motor 9 drives the pulley to rotate the lead screw 6, which drives the special-shaped nut 3 to move forward, and the nut moves linearly through the rotation of the lead screw. Propel the baffle to move, push the luggage onto the luggage rack, and complete the luggage racking.

It has been verified that the lifting mechanism of the utility model, which is convenient for passengers to carry luggage, has the advantages of simple structure, high degree of automation, stable operation process, good safety, reliable structure, simple operation, low cost, and great application prospect.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are only examples, and on the premise of not violating the principle and essence of the present invention, various kinds of implementations can be made in these embodiments. change or modification.

Claims (10)

1. A lifting mechanism facilitating luggage carrying of passengers is characterized by comprising a vehicle board and a lifting board positioned above the vehicle board;

at least three wheels are arranged below the sweep, the wheels are respectively connected with a steering device and a wheel driving device, the wheel driving device is used for driving the wheels, and the steering device is used for changing the direction of the wheels, namely adjusting the movement direction of the lifting mechanism;

the hydraulic telescopic device is used for adjusting the position of a lifting plate for placing luggage in the vertical direction, the hydraulic telescopic device drives an oil pump through a hydraulic motor, oil is brought into a hydraulic telescopic cylinder or the oil in the hydraulic telescopic cylinder is pumped out, and the position of the lifting plate is adjusted by controlling the telescopic of the hydraulic telescopic device through changing the liquid level of the oil in the hydraulic telescopic cylinder;

the luggage push plate is used for pushing luggage and is arranged on the lifting plate, the luggage push plate is connected with the screw rod, the screw rod is provided with a screw rod driving device, and the screw rod is driven by the screw rod driving device to enable the luggage push plate to move along the arrangement direction of the screw rod.

2. The lift mechanism for facilitating the transport of luggage by passengers of claim 1 wherein said wheels are four in number, four wheels being coaxial two by two and comprising two front wheels and two rear wheels.

3. The lift mechanism of claim 2, wherein the wheel driving unit is a wheel driving motor connected to each of the two rear wheels, and an output shaft of the wheel driving motor is connected to the rear wheels.

4. The lifting mechanism for facilitating the carrying of luggage by passengers as claimed in claim 3, wherein the two front wheels are connected with the steering wheel rack arranged between the two front wheels sequentially through the steering wheel frame and the steering wheel frame retainer;

the steering device is a steering motor, the steering motor is fixedly connected with the vehicle plate through a steering motor support, and a steering motor gear matched with a steering wheel frame rack is mounted on an output shaft of the steering motor;

the steering of the two front wheels can be realized by controlling the steering motor.

5. The lift mechanism for facilitating the transport of luggage by passengers of claim 1 wherein said hydraulic jack includes a hydraulic jack motor assembly and a hydraulic jack;

the hydraulic telescopic cylinder is arranged on the vehicle plate, and the telescopic end of the hydraulic telescopic cylinder is fixedly connected with the lifting plate;

the hydraulic telescopic device motor device comprises a hydraulic motor and an oil pump, a hydraulic motor gear is mounted on an output shaft of the hydraulic motor, an oil pump gear is mounted on an output shaft of the oil pump, the hydraulic motor gear and the oil pump gear are driven through an intermediate transmission gear, and the oil pump is communicated with the hydraulic telescopic cylinder through an oil pipe.

6. The lift mechanism for facilitating the transport of luggage by passengers of claim 5, wherein said oil pump gear is fixed to an oil pump output shaft by an axial fixing nut;

the intermediate transmission gear is fixed on the vehicle plate through a middle transmission gear retainer through a bolt;

the hydraulic motor and the oil pump are fixedly connected with the vehicle plate through bolts.

7. The lifting mechanism for facilitating the carrying of luggage by passengers as claimed in claim 6, wherein there are two hydraulic telescopic cylinders, and the two hydraulic telescopic cylinders have the same shape and structure;

the hydraulic telescopic cylinder comprises a first-stage hydraulic cylinder, a second-stage hydraulic cylinder, a third-stage hydraulic cylinder and a fourth-stage hydraulic cylinder which are connected in sequence;

the first-stage hydraulic cylinder is fixedly connected with the sweep through a first hydraulic cylinder fixing flange, and the first-stage hydraulic cylinder is fixedly connected with the second-stage hydraulic cylinder through an upper connecting flange; the first-stage hydraulic cylinder is composed of two sections which are connected through a middle connecting flange, and a plurality of supporting and protecting screw rods are arranged between the middle connecting flange and the upper connecting flange and between the middle connecting flange and the vehicle plate around the first-stage hydraulic cylinder.

8. The lift mechanism for facilitating the transport of luggage by passengers of claim 1 wherein said lift plate is parallel to said deck;

the luggage push plate is vertical to the lifting plate;

the lifting plate is provided with a plurality of parallel grooves, lead screws are uniformly distributed in the grooves, the lead screws are connected with the luggage push plate through special-shaped nuts, the special-shaped nuts and the luggage push plate are fixed through bolts I, and the special-shaped nuts are integrally flaky and are in threaded connection with the lead screws;

the end of the screw rod close to the special-shaped nut is provided with a round-head common flat key for limiting the position of the screw rod.

9. The lifting mechanism for facilitating the carrying of luggage by passengers as claimed in claim 8, wherein a screw shaft V belt wheel is mounted at the end of the screw near the special-shaped nut, and the screw shaft V belt wheel is coaxial with the screw and is nested on a circular common flat key;

the screw driving device comprises a screw driving motor arranged on the lower surface of the lifting plate;

the output shaft of the screw driving motor is provided with a motor output shaft V belt wheel coaxial with the output shaft, a V belt is arranged between the motor output shaft V belt wheel and each screw shaft V belt wheel, and the power of the screw driving motor is transmitted to each screw through the V belt.

10. The lift mechanism for facilitating the transport of luggage by passengers of claim 9 wherein said bolt I is fitted with a washer;

the lifting plate is provided with three parallel lead screws which are arranged at equal intervals, and an output shaft of the lead screw driving motor is positioned right below the middle lead screw;

the screw driving motor is fixed with the lifting plate through a screw driving motor support.

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