CN113085934A

CN113085934A - In-carriage handrail device for rail transit vehicle

Info

Publication number: CN113085934A
Application number: CN202110499224.1A
Authority: CN
Inventors: 张健
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-07-09

Abstract

The invention belongs to the technical field of rail vehicle matching equipment, and particularly relates to an in-carriage handrail device for a rail transit vehicle, wherein two sides of a main rod are respectively provided with an auxiliary rod, the main rod and the auxiliary rods are both of a hollow structure, one side, close to each other, of each auxiliary rod is provided with a main handle, each main handle is fixedly sleeved with a compression spring, each main handle extends into each auxiliary rod, the outer sides of the two auxiliary rods are respectively and fixedly provided with a sliding block, and one side of each sliding block is in sliding connection with each auxiliary rod. Simple operation and convenient use.

Description

In-carriage handrail device for rail transit vehicle

Technical Field

The invention belongs to the technical field of rail vehicle corollary equipment, and relates to an in-carriage handrail device for a rail transit vehicle.

Background

Along with the increase of population and vehicle quantity, urban traffic is increasingly congested, the road planning process is slow, the traffic jam problem is difficult to solve, in order to deal with the difficult traffic problem, the application of the rail vehicle plays a role of relieving traffic pressure, the rail vehicles of subways and light rails have the advantages of large passenger capacity and high speed, and the rail vehicles do not share a road with an automobile and have the problem of traffic jam, so that great convenience is brought to the traveling of people;

however, the number of people in the subway and light rail carriages is large, the arrangement of the handrails is insufficient, particularly, only a single vertical rod is arranged at the positions of the upper door and the lower door, but the vertical rod can only be held by two people left and right, if the traffic is too large in a rush hour, the embarrassing situation that a part of passengers do not have handrails can be caused, and the embarrassing situation that the passengers fall down is indirectly caused.

Disclosure of Invention

In view of the above, the invention provides an in-car handrail device for a rail transit vehicle, which aims to solve the problems that the number of people in a subway or light rail car is large, the arrangement of handrails is insufficient, and no handrail is available for passengers in rush hours.

In order to achieve the purpose, the invention provides the following technical scheme:

a carriage inner handrail device for a rail transit vehicle comprises a main rod, wherein auxiliary rods are arranged on two sides of the main rod, the main rod and the auxiliary rods are of hollow structures, main handles are arranged on the two sides, close to each other, of the two auxiliary rods, compression springs are fixedly sleeved on the two main handles, the two main handles extend into the auxiliary rods, sliding blocks are fixedly arranged on the outer sides of the two auxiliary rods, one sides of the two sliding blocks are slidably connected with the auxiliary rods, driving rods are fixedly arranged at the bottoms of the two sliding blocks, connecting rods are slidably connected with one sides of the two main handles, push-pull rods are fixedly arranged at the top ends and the bottom ends of the two connecting rods, the four push-pull rods are slidably connected onto the inner walls of the auxiliary rods, matching rods are rotatably connected to one ends, close to each other, of the four push-pull rods, push pins are rotatably connected to the top ends of the four matching rods, and extend out of, the inner wall of the main rod is connected with four auxiliary pins in a matrix arrangement in a sliding manner, the tops of the four auxiliary pins are fixedly provided with reset springs, the four reset springs are fixedly arranged on the inner wall of the main rod and are in sliding contact with the two auxiliary rods respectively, two auxiliary handles are arranged on two sides of the main rod, one sides of the bottoms of the two drive rods are in sliding contact with the two auxiliary handles respectively, the bottom of each auxiliary handle is fixedly provided with a same pushing frame, the pushing rod is fixedly provided with a pressing spring, the bottom of the pressing spring is fixedly arranged on the inner wall of the main rod, the pushing frame extends out of the main rod, the top of the pushing frame is fixedly provided with a main shaft, the top of the main shaft is fixedly provided with a pulling frame, one side of the pulling frame is fixedly provided with a drive belt, the inner wall of one side of the main rod is connected with a lower rotating shaft in a rotating manner, rotate on the both sides inner wall of mobile jib and be connected with same main pivot, it is connected with the pivot to rotate on one side inner wall of mobile jib, it is equipped with the drive area to go up the cover in the pivot, the bottom in drive area and the top of drive belt are all established in main pivot, the equal sliding connection in top and the bottom of mobile jib has the track frame, the equal sliding connection in top and the bottom of mobile jib one side inner wall has two meshing poles, rotates between two meshing poles and connects, and one side and the drive that is located two meshing poles of top position take fixed connection, one side and the pushing frame fixed connection that is located two meshing poles of below position, sliding connection has four shelves doors that are the matrix arrangement on the mobile jib, four shelves doors respectively with two push-pull rod sliding contact.

The beneficial effect of this basic scheme lies in: the combination of the device can be controlled by one handle, and the position of the upright rod can be adjusted by pressing one of the two handles downwards, so that the embarrassment that passengers have no handrail is effectively relieved.

Further, the top and the equal fixed mounting in bottom of mobile jib have two runners, four runners respectively with two track frame sliding connection, beneficial effect: the rail rack is used for effectively reducing the friction between the main rod and the rail racks when the main rod is pushed between the two rail racks after the main rod is unlocked, and the main rod is conveniently moved.

Further, the equal fixed mounting in bottom of two drive rods has the bill-board, and the one side that two auxiliary rods are close to each other all rotates and connects protection casing, beneficial effect: can effectually shelter from the drive rod for the passenger mistake is for only an advertising pole, can not remove touching the drive rod, just can not carry out the unblock to the mobile jib, causes the potential safety hazard, and the protection casing is used for sheltering from the main handle, prevents that the passenger from touching by mistake, carries out the unblock between vice pole and the mobile jib, avoids causing the vice pole to pound the condition that hinders the passenger.

Further, the top and the bottom of two track framves all are equipped with a row of tooth, tooth meshes with four meshing pole looks respectively, beneficial effect: the main rod is fixed between the two track frames, the opening and the closing of the meshing rod are controlled through the main handle and the auxiliary handle, the meshing rod is opened and separated from the teeth, the main rod can move freely, the meshing rod is closed, the teeth are clasped, and the main rod is fixed.

Further, fixed mounting has four cylinders that are the matrix arrangement on the mobile jib, has all seted up oval spout on four meshing poles, the inner wall sliding connection of cylindrical outside and oval spout, beneficial effect: a point for inciting somebody to action the meshing pole pivoted is positioned on the mobile jib for the meshing pole can be more stable embrace the tooth, just more stable fixed the mobile jib.

Further, fixed mounting has four locating pieces that are the matrix arrangement on the inner wall of mobile jib, the bottom of locating piece respectively with four reset spring fixed connection, beneficial effect: when the pushing pin jacks up the auxiliary pin, the auxiliary pin can normally contract the return spring, and when the pushing pin is retracted, the auxiliary pin can release the auxiliary rod through the return spring.

Further, fixed mounting has the pole of blockking on the inner wall of mobile jib, the top of blockking the pole and the top fixed connection who presses the spring, beneficial effect: the main rod can be pressed by the pressing spring when moving up and down, or the main rod is reset by the pressing spring, and the main rod is reset to drive the meshing rods at the upper position and the lower position to hold the teeth and position the main rod.

Further, all set up two horizontal spouts that the symmetry set up on the inner wall of two auxiliary rods, four push-and-pull rods sliding connection respectively are on the inner wall of horizontal spout, beneficial effect: the push-pull rod can control the matching rod to pull the pushing pin to slide up and down, when the push-pull rod slides left and right on the horizontal sliding groove, the matching rod is pulled or pushed, the matching rod pulls or pushes the pushing pin to extend or retract on the auxiliary rod, the pushing pin retracts, the auxiliary rod can be freely inserted into the main rod, and the pushing pin extends to fix the auxiliary rod in the main rod.

Further, perpendicular spout has all been seted up on two connecting rods, main handle sliding connection is on the inner wall of perpendicular spout, beneficial effect: the auxiliary handle can also be independently controlled, and the up-and-down movement of the auxiliary handle can drive the upper and lower meshing rods to tightly hold and release the upper and lower teeth.

Further, equal fixed mounting has a fixed block on four auxiliary pins, and the fixed block extends to in the auxiliary rod, beneficial effect: the auxiliary rod is fixed in the main rod, and the auxiliary rod greatly reduced is separated from the main rod to injure passengers by smashing.

The invention has the beneficial effects that:

1. the invention discloses an in-carriage handrail device for a rail transit vehicle, which is characterized in that a connecting rod and a push-pull rod are pushed by a main handle through pressing the main handle on an auxiliary rod, the push-pull rod pulls a matching rod and a pushing pin to withdraw the push-pull rod, then two stop doors on one side of the main rod are pushed upwards on the main rod, one side of the main rod is opened, the auxiliary rod is inserted into the main rod, then the main handle is loosened, the main handle is reset through a compression spring, the main handle is reset to drive the two connecting rods to reset, the connecting rods drive the two push-pull rods to reset, the matching rod pushes the matching rod towards one side, the matching rod lifts the pushing pin upwards to be inserted into the main rod, when the pushing pin is inserted, the pushing pin can push the auxiliary pin upwards, the auxiliary pin is inserted into the bottom of the auxiliary rod, and the auxiliary rod is completely inserted into the main rod and fixed, so that.

2. The invention discloses a compartment handrail device for a rail transit vehicle, which can adjust the position of the device in a compartment by pressing a main handle or an auxiliary handle, can drive a main shaft, a pushing frame and a pulling frame to move downwards by pressing the main handle or the auxiliary handle downwards, the pushing frame presses two lower engaging rods downwards, the engaging rods are driven by the pushing frame, a connecting point at the top end slides on the inner wall of a main rod, the middle parts of the two engaging rods are rotationally connected with two sides of the main rod, the bottoms of the two engaging rods are separated from a rail frame by a lever principle, and the bottoms of the main rod freely slide on the rail frame at the bottom at the moment; the mobile jib is pressed, still can stimulate the pulling frame, and pulling frame pulling drive belt, drive belt begin to rotate and drive main pivot and rotate, and main pivot drives the area rotation again, drives two engaging rod that take the pulling top and breaks away from with the track frame of top, and the mobile jib just is by unblock completely, just can freely promote the mobile jib, promotes this device to the intensive region of stream of people, alleviates the awkwardness that the passenger did not have the handrail a bit.

3. The in-carriage handrail device for the rail transit vehicle is simple in structure, the pin on the auxiliary rod can be retracted and inserted into the main rod by pressing the main handle on the auxiliary rod, so that the vertical rods of the three handrails can be formed for being held by more people, meanwhile, the main handle or the auxiliary handle can be pressed downwards to unlock the vertical rods, so that the vertical rods are moved to a crowded area, the embarrassment that passengers have no handrail in the crowded area is further relieved, and the in-carriage handrail device is simple to operate and convenient to use.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

FIG. 1 is a front view of the structure of an in-car armrest device for a rail transit vehicle according to the present invention;

FIG. 2 is a front sectional view of the structure of the in-car armrest device for the rail transit vehicle according to the present invention;

FIG. 3 is a top view of the structure of the in-car armrest apparatus for a rail transit vehicle according to the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

FIG. 6 is an enlarged view of the structure at C in FIG. 2 according to the present invention.

The drawings are numbered as follows: the automatic advertising board comprises a main rod 1, a pull frame 2, an auxiliary rod 3, an auxiliary handle 4, a push frame 5, a billboard 6, a driving rod 7, a protective cover 8, a track frame 9, a push-pull rod 10, a connecting rod 11, a lower rotating shaft 12, a driving belt 13, an upper rotating shaft 14, a rotating wheel 15, a meshing rod 16, a driving belt 17, a main rotating shaft 18, a sliding block 19, a main handle 20, a positioning block 21, a return spring 22, a push pin 23, a matching rod 24, an auxiliary pin 25, a gear door 26, a pressing spring 27, a compression spring 28, a main shaft 29 and a return spring 30.

Detailed Description

The following is further detailed by way of specific embodiments:

as shown in fig. 1-6, the handrail device in carriage for rail transit vehicle comprises a main rod 1, two sides of the main rod 1 are respectively provided with an auxiliary rod 3, the main rod 1 and the auxiliary rods 3 are both hollow structures, one side of each of the two auxiliary rods 3 close to each other is provided with a main handle 20, the two main handles 20 are respectively fixedly sleeved with a compression spring 28, the two main handles 20 extend into the auxiliary rods 3, the outer sides of the two auxiliary rods 3 are respectively and fixedly provided with a sliding block 19, one side of each of the two sliding blocks 19 is respectively and slidably connected with the auxiliary rods 3, the bottoms of the two sliding blocks 19 are respectively and fixedly provided with a driving rod 7, one side of each of the two main handles 20 is respectively and slidably connected with a connecting rod 11, the two connecting rods 11 are respectively provided with a vertical sliding groove, the main handle 20 is slidably connected with the inner wall of the vertical sliding groove and is used for connecting the main handle 20 and the connecting, the main handle 20 can slide up and down and simultaneously drive the driving rod 7 to control the auxiliary handle 4, the auxiliary handle 4 can also be controlled independently, and the up-and-down movement of the auxiliary handle 4 can drive the upper and lower meshing rods 16 to tightly hold and release the upper and lower teeth.

The top ends and the bottom ends of the two connecting rods 11 are fixedly provided with push-pull rods 10, the four push-pull rods 10 are all slidably connected to the inner wall of the auxiliary rod 3, the inner wall of the two auxiliary rods 3 is provided with two horizontal sliding grooves which are symmetrically arranged, the four push-pull rods 10 are respectively slidably connected to the inner walls of the horizontal sliding grooves, the push-pull rods 10 can control the matching rods 24 to pull the pushing pins 23 to slide up and down, when the push-pull rods 10 slide left and right on the horizontal sliding grooves, the matching rods 24 are pulled or pushed, the pushing pins 23 are pulled or pushed to extend or retract on the auxiliary rods 3, the pushing pins 23 retract, the auxiliary rods 3 can be freely inserted into the main rod 1, the pushing pins 23 extend to fix the auxiliary rods 3 in the main rod 1, the matching rods 24 are rotatably connected to the ends of the four push-pull rods 10 which are close to each other, the top ends of the four matching rods 24 are rotatably, four pushing pins 23 each extend out of the sub-lever 3.

Four auxiliary pins 25 arranged in a matrix are connected to the inner wall of the main rod 1 in a sliding manner, reset springs 22 are fixedly mounted at the tops of the four auxiliary pins 25, the four reset springs 22 are fixedly mounted on the inner wall of the main rod 1, four positioning blocks 21 arranged in a matrix are fixedly mounted on the inner wall of the main rod 1, the bottoms of the positioning blocks 21 are fixedly connected with the four reset springs 22 respectively, when the auxiliary pins 25 are jacked up by the push pins 23, the auxiliary pins 25 can normally contract the reset springs 22, when the push pins 23 are withdrawn, the auxiliary pins 25 can release the auxiliary rods 3 through the reset springs 22, the four auxiliary pins 25 are in sliding contact with the two auxiliary rods 3 respectively, fixed blocks are fixedly mounted on the four auxiliary pins 25 respectively, the fixed blocks extend into the auxiliary rods 3 and are driven by the push pins 23 and can be inserted into the auxiliary rods 3, and further the auxiliary rods 3 are fixed in the main rod 1, the vice pole 3 of great reduction breaks away from with mobile jib 1 and injures passenger's potential safety hazard by a crashing object, and the both sides of mobile jib 1 all are equipped with two vice handles 4, two bottom one sides that drive pole 7 respectively with two vice handle 4 sliding contact.

The advertising board 6 is fixedly installed at the bottom of each of the two driving rods 7, one side of each of the two auxiliary rods 3, which is close to each other, is rotatably connected with the protective cover 8, the driving rod 7 can be effectively shielded, so that a passenger can mistakenly think only one advertising rod without touching the driving rod 7, the main rod 1 can not be unlocked and potential safety hazards are caused, the protective cover 8 is used for shielding the main handle 20 to prevent the passenger from mistakenly touching and unlocking between the auxiliary rods 3 and the main rod 1 to avoid the situation that the passenger is injured by the auxiliary rods 3, the bottom end of the auxiliary handle 4 is fixedly provided with the same pushing frame 5, the push-pull rod 10 is fixedly provided with the pressing spring 27, the bottom of the pressing spring 27 is fixedly installed on the inner wall of the main rod 1, the inner wall of the main rod 1 is fixedly provided with the blocking rod, the top of the blocking rod is fixedly connected with the top of the pressing spring 27, or the main rod 1 is reset by pressing the spring 27, and the reset of the main rod 1 drives the engaging rods 16 at the upper position and the lower position to embrace the teeth and position the main rod 1.

Push away frame 5 and extend to mobile jib 1 outside, the top fixed mounting who pushes away frame 5 has main shaft 29, the top fixed mounting of main shaft 29 has pull frame 2, one side fixed mounting who pulls frame 2 has drive belt 13, it is connected with pivot 12 down to rotate on one side inner wall of mobile jib 1, the bottom cover of drive belt 13 is established under on pivot 12, it is connected with same main pivot 18 to rotate on the both sides inner wall of mobile jib 1, it is connected with pivot 14 to rotate on one side inner wall of mobile jib 1, go up pivot 14 and go up the cover and establish drive area 17, the bottom that drives area 17 and the top of drive belt 13 all overlap and establish on main pivot 18, the top and the equal sliding connection in bottom of mobile jib 1 have track frame 9.

Equal fixed mounting in top and the bottom of mobile jib 1 has two runners 15, four runners 15 respectively with two track frame 9 sliding connection for after 1 unblock of mobile jib, when promoting mobile jib 1 between two track frames 9, the effectual frictional force that has reduced between mobile jib 1 and the track frame 9, and the convenience removes mobile jib 1.

The top and the bottom of the two track frames 9 are respectively provided with a row of teeth which are respectively meshed with the four meshing rods 16 and used for fixing the main rod 1 between the two track frames 9, the opening and the closing of the meshing rods 16 are controlled by the main handle 20 and the auxiliary handle 4, the meshing rods 16 are opened and separated from the teeth, the main rod 1 can move freely, the meshing rods 16 are closed to hold the teeth, so that the main rod 1 is fixed, the top and the bottom of the inner wall at one side of the main rod 1 are both connected with the two meshing rods 16 in a sliding way, the main rod 1 is fixedly provided with four cylinders arranged in a matrix way, the four meshing rods 16 are both provided with elliptical chutes, the outer sides of the cylinders are connected with the inner wall of the elliptical chutes in a sliding way and used for positioning the rotating point of the meshing rods 16 on the main rod 1, so that the meshing rods 16 can hold the teeth more stably, so that the main rod 1 is fixed, and the two meshing rods 16 are connected, one side of the two engaging rods 16 positioned at the upper position is fixedly connected with the driving belt 17, one side of the two engaging rods 16 positioned at the lower position is fixedly connected with the pushing frame 5, four blocking doors 26 arranged in a matrix form are slidably connected on the main rod 1, and the four blocking doors 26 are respectively in sliding contact with the two push-pull rods 10.

The use method of the handrail device in the compartment for the rail transit vehicle can combine the device in the peak period, and combines a single vertical rod into three combined vertical rods, firstly, a main handle 20 is pressed inwards on an auxiliary rod 3, the main handle 20 pushes a connecting rod 11 and a push-pull rod 10, the push-pull rod 10 pulls a matching rod 24 and a pushing pin 23, the push-pull rod 10 is retracted, at the same time, two baffle doors 26 on one side are pushed upwards on a main rod 1, one side of the main rod 1 is opened, the auxiliary rod 3 is inserted into the main rod 1, then the main handle 20 is released, at the same time, the main handle 20 is reset through a compression spring 28, the main handle 20 is reset, then the connecting rod 11 drives two push-pull rods 10 to reset, the two push-pull rods 10 push the matching rod 24 towards one side, the matching rod 24 lifts the pushing pin 23 upwards and is inserted into the main rod 1, when the pushing pin 23 is inserted, the pushing pin 23 pushes the auxiliary pin 25 upwards, the auxiliary pin 25 is inserted into the bottom of the auxiliary rod 3, the auxiliary rod 3 is completely inserted into the main rod 1 and fixed, the auxiliary rod 3 on the other side is operated in the same way, and after the auxiliary rod 3 is inserted, the main handle 20 drives the driving rod 7 to be in contact with the auxiliary handle 4.

When the device needs to be moved to a position with large pedestrian flow, the main handle 20 drives the driving rod 7 to contact with the auxiliary handle 4, the auxiliary handle 4 and the main handle 20 can control the movement of the device, the main handle 20 or the auxiliary handle 4 needs to be pressed downwards first, at this time, the main shaft 29, the pushing frame 5 and the pulling frame 2 are driven to move downwards, the pushing frame 5 presses downwards the two lower engaging rods 16, the engaging rods 16 are driven by the pushing frame 5, the connecting point at the top end slides on the inner wall of the main rod 1, the middle parts of the two engaging rods 16 are rotatably connected with the two sides of the main rod 1, the bottom parts of the two engaging rods 16 are separated from the track frame 9 by utilizing the lever principle, at this time, the bottom part of the main rod 1 freely slides on the bottom track frame 9, the main rod 1 is pressed at the same time, the pulling frame 2 is pulled, the driving frame 2 pulls the driving belt 13 fixedly arranged with the driving frame, and the driving belt 13 starts to rotate and drives the main, the main rotating shaft 18 drives the driving belt 17 to rotate again, the driving belt 17 pulls the two engaging rods 16 above the driving belt to be separated from the track frames 9 above the driving belt, the main rod 1 is completely unlocked at the moment, the main rod 1 can be freely pushed, the device is pushed to an area with dense people flow, the embarrassment that some passengers do not have handrails is relieved, and the two track frames 9 are respectively arranged at the top and the bottom of the carriage of the rail transit vehicle.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.

Claims

1. The compartment inner handrail device for the rail transit vehicle comprises a main rod (1) and is characterized in that auxiliary rods (3) are arranged on two sides of the main rod (1), main handles (20) are arranged on one sides, close to each other, of the two auxiliary rods (3), compression springs (28) are fixedly sleeved on the two main handles (20), the two main handles (20) extend into the auxiliary rods (3), two sliding blocks (19) which are connected with the auxiliary rods (3) in a sliding mode are fixedly arranged on the outer sides of the two auxiliary rods (3), driving rods (7) are fixedly arranged at the bottoms of the two sliding blocks (19), connecting rods (11) are connected with one sides of the two main handles (20) in a sliding mode, push-pull rods (10) are fixedly arranged at the top ends and the bottom ends of the two connecting rods (11), the four push-pull rods (10) are connected to the inner walls of the auxiliary rods (3) in a sliding mode, and matching rods (24) are rotatably connected to one ends, close to each other, of the four push-pull, the top of four cooperation poles (24) all rotates to be connected with and promotes round pin (23), and four promote round pin (23) all extend to outside auxiliary rod (3), sliding connection has four supplementary round pin (25) that are the matrix arrangement on the inner wall of mobile jib (1), and the equal fixed mounting in top of four supplementary round pin (25) has reset spring (22), and four equal fixed mounting of reset spring (22) are on the inner wall of mobile jib (1), and four supplementary round pin (25) respectively with two auxiliary rod (3) sliding contact.

2. The in-car handrail device for the rail transit vehicle as claimed in claim 1, wherein two auxiliary handles (4) are respectively arranged at two sides of the main rod (1), one sides of bottoms of the two driving rods (7) are respectively in sliding contact with the two auxiliary handles (4), the bottom end of each auxiliary handle (4) is fixedly provided with a same pushing frame (5), the pushing rod (10) is fixedly provided with a pressing spring (27), the bottom of each pressing spring (27) is fixedly arranged on the inner wall of the main rod (1), the pushing frame (5) extends out of the main rod (1), the top of each pushing frame (5) is fixedly provided with a main shaft (29), the top of each main shaft (29) is fixedly provided with a pulling frame (2), one side of each pulling frame (2) is fixedly provided with a driving belt (13), the inner wall of one side of the main rod (1) is rotatably connected with a lower rotating shaft (12), the bottom cover of drive belt (13) is established under in pivot (12), it is connected with same main pivot (18) to rotate on the both sides inner wall of mobile jib (1), it is connected with pivot (14) to rotate on the one side inner wall of mobile jib (1), it is equipped with drive area (17) to go up the cover in pivot (14), the bottom of drive area (17) and the top of drive belt (13) all overlap on main pivot (18), the top and the equal sliding connection in bottom of mobile jib (1) have track frame (9), the top and the equal sliding connection in bottom of mobile jib (1) one side inner wall have two meshing poles (16), rotate between two meshing poles (16) and connect, be located one side and the drive area (17) fixed connection of two meshing poles (16) of top position, be located one side and the pushing away frame (5) fixed connection of two meshing poles (16) of below position, the main rod (1) is connected with four baffles (26) which are arranged in a matrix in a sliding manner, and the four baffles (26) are respectively in sliding contact with the two push-pull rods (10).

3. The in-car handrail device for the rail transit vehicle as claimed in claim 2, wherein two rotating wheels (15) are fixedly installed at the top and the bottom of the main rod (1), four rotating wheels (15) are respectively connected with the two rail frames (9) in a sliding manner, the advertising boards (6) are fixedly installed at the bottoms of the two driving rods (7), and the side, close to each other, of the two auxiliary rods (3) is rotatably connected with the protective cover (8).

4. An in-car handrail device for a rail transit vehicle according to claim 2, wherein the two rail frames (9) are provided with a row of teeth at the top and bottom thereof, said teeth being engaged with the four engagement bars (16), respectively.

5. The in-car handrail device for the rail transit vehicle as claimed in claim 2, wherein four cylinders arranged in a matrix are fixedly installed on the main rod (1), four engaging rods (16) are respectively provided with an oval sliding groove, and the outer side of each cylinder is slidably connected with the inner wall of the oval sliding groove.

6. The in-car handrail device for the rail transit vehicle as claimed in claim 1, wherein four positioning blocks (21) are fixedly installed on the inner wall of the main rod (1) in a matrix arrangement, and the bottoms of the positioning blocks (21) are respectively and fixedly connected with four return springs (22).

7. An in-car handrail device for a rail transit vehicle according to claim 2, wherein a blocking rod is fixedly mounted on the inner wall of the main rod (1), and the top of the blocking rod is fixedly connected with the top of the pressing spring (27).

8. The in-car handrail device for the rail transit vehicle as claimed in claim 1, wherein two horizontal sliding grooves are symmetrically formed on the inner walls of the two sub-rods (3), and four push-pull rods (10) are slidably connected to the inner walls of the horizontal sliding grooves, respectively.

9. An in-car handrail device for a rail transit vehicle according to claim 1, wherein the two connecting rods (11) are each provided with a vertical sliding groove, and the main handle (20) is slidably connected to an inner wall of the vertical sliding groove.

10. An in-car handrail device for a rail transit vehicle according to claim 1, wherein fixed blocks are fixedly mounted on each of the four auxiliary pins (25), the fixed blocks extending into the sub-rod (3).