阅读说明：本技术 一种无障碍公交车门 (Barrier-free bus door ) 是由 刘春雨 于 2021-01-24 设计创作，主要内容包括：本发明涉及汽车电子控制相关领域,尤其是一种无障碍公交车门,包括车身,所述车身内设置有前后贯穿的车门腔,所述车门腔顶壁左右对称固定设置有上轴,所述上轴外表面转动设置有左右延伸的上连杆,本发明通过拉线和扭转弹簧带动齿轮转动,致使齿轮在齿条上移动,进而致使一阶横桥伸缩,同时通过推杆致使齿轮齿条啮合,进而致使二阶横桥伸缩,同时为配合二阶横桥伸缩时,拉线伸出长度保持不变,需要电子控制电机正反转,进而保证一阶横板线伸缩后跟随二阶横板在伸缩,同时通过与公交车站抵接推动齿条致使齿轮转动九十度,从而使支撑架转动九十度抵接地面。(The invention relates to the field of automobile electronic control, in particular to an accessible bus door, which comprises a bus body, a vehicle door cavity penetrating through the vehicle body is arranged in the vehicle body, upper shafts are symmetrically and fixedly arranged on the top wall of the vehicle door cavity in the left-right direction, the outer surface of the upper shaft is rotationally provided with an upper connecting rod which extends leftwards and rightwards, the invention drives the gear to rotate through the pull wire and the torsion spring, so that the gear moves on the rack, thereby causing the first-order transverse bridge to extend and retract, and simultaneously causing the gear rack to engage through the push rod, thereby causing the second-order transverse bridge to extend and retract, meanwhile, when the two-order transverse bridge is matched to stretch, the extension length of the stay wire is kept unchanged, the motor is required to be controlled by electrons to rotate forwards and backwards, and then guarantee that first order diaphragm line is flexible the heel is flexible along with the second order diaphragm, and it causes the gear to rotate ninety degrees through the promotion rack with bus station butt simultaneously to make the support frame rotate ninety degrees butt ground.)

1. The utility model provides an accessible bus door, includes the automobile body, its characterized in that: the automobile door is characterized in that a front and back through automobile door cavity is arranged in the automobile body, upper shafts are symmetrically and fixedly arranged on the top wall of the automobile door cavity in a left-right mode, upper connecting rods extending in the left-right mode are rotatably arranged on the outer surface of each upper shaft, upper moving shafts for realizing extension are rotatably arranged on the upper connecting rods in a moving mode far away from the upper shafts in a moving mode, trigger compression rods are symmetrically and fixedly arranged on the left and right sides of the bottom wall of the automobile door cavity, lower connecting rods extending in the left-right mode are rotatably arranged on the outer surface of the trigger compression rods in a moving mode, lower moving shafts extending in the up-down mode are fixedly arranged on the lower connecting rods far away from the trigger compression rods in a moving mode, an automobile door is fixedly arranged between each lower moving shaft and the upper moving shafts in a group, the top wall of the automobile door cavity is communicated, a door opening motor with an output shaft leftwards is fixedly arranged in the right wall of the door opening power cavity, a lead screw which extends leftwards and rightwards and is in threaded connection with a lead screw nut is fixedly arranged at the tail end of the output shaft of the door opening motor, a second-order transverse bridge cavity with a forward opening is arranged in the bottom wall of the chute, a second-order transverse bridge is slidably arranged in the second-order transverse bridge cavity, a first-order transverse bridge cavity with a forward opening is slidably arranged in the second-order transverse bridge cavity, a first-order compression spring fixed with the rear wall of the first-order transverse bridge cavity is fixedly arranged on the rear wall of the first-order transverse bridge cavity, support furling cavities with downward openings are symmetrically arranged in the first-order transverse bridge leftwards and rightwards, second-order lower grooves which penetrate upwards and downwards are arranged at positions of the second-order transverse bridge corresponding to the support furling cavities, the bottom wall of the sliding chute is provided with trigger spring cavities in a bilateral symmetry mode, the trigger spring cavities are internally provided with trigger devices which are used for producing meshing of gear racks through push rods and further extending the second-order cross bridge out of the automobile body, the bottom wall of each trigger spring cavity is communicated with a second-order rack cavity communicated with the second-order cross bridge cavity, the bottom wall of each second-order rack cavity is provided with a second-order gear cavity in a communicating mode, a second-order motor with an output shaft far away from a central line is fixedly arranged in a wall of the second-order gear cavity close to the central line, a second-order shaft extending leftwards and rightwards is fixedly arranged at the tail end of the output shaft of the second-order motor, one end of the second-order shaft far away from the second-order motor extends into the second-order gear cavity, a second-order gear is fixedly arranged at the tail end of the second-order cross bridge cavity, the left wall of the clutch cavity is communicated with a clutch rod cavity, a push rod device which pushes the extension device to generate shaft clutch is arranged in the clutch rod cavity, and the left and right symmetry of the bottom wall of the vehicle body is provided with a vehicle body lower slot which corresponds to the position of the support folding cavity and is communicated with the second-order transverse axle cavity.

2. An accessible bus door as defined in claim 1, wherein: a support shaft extending leftwards and rightwards is arranged in the support folding cavity, a support block is fixedly arranged on the outer surface of the support shaft, a support cavity with a backward opening is arranged in the support block, a support compression spring is fixedly arranged on the front wall of the support cavity, a support frame is fixedly arranged at one end of the support compression spring far away from the support block, support gear cavities are symmetrically arranged leftwards and rightwards in the support folding cavity, a support spring cavity is communicated and arranged in the wall of the support gear cavity far away from the support folding cavity, two ends of the support shaft penetrate through the support gear cavity, a support gear is fixedly arranged on the outer surface of the support shaft, two ends of the support shaft extend into the support spring cavity, a support torsion spring fixed on the wall of the support spring cavity is fixedly arranged at the tail end of the support spring cavity, a rack cavity with, one end of the compression spring, which is far away from the rear wall of the rack cavity, is fixedly provided with a supporting rack which is meshed with the supporting gear and extends forwards and backwards.

3. An accessible bus door as defined in claim 1, wherein: the second order cross bridge bilateral symmetry is provided with the opening and keeps away from the rack spring chamber of first order cross bridge, the fixed rack compression spring that is provided with of rack spring chamber diapire, rack compression spring keeps away from the fixed second order rack that stretches into of rack spring chamber diapire, second order rack roof butt is provided with the trigger push rod who extends from top to bottom, trigger push rod keeps away from trigger push rod's one end stretches into trigger spring intracavity and terminal fixed being provided with control extension trigger connecting rod, trigger connecting rod keeps away from trigger push rod's one end is fixed to be provided with and stretches into the trigger depression bar of spout, trigger connecting rod diapire is fixed to be provided with fixes trigger compression spring on the trigger spring chamber diapire.

4. An accessible bus door as defined in claim 1, wherein: a first-order motor with an output shaft leftwards is arranged in the right wall of the clutch cavity, a first-order motor shaft extending leftwards and rightwards is fixedly arranged at the tail end of the output shaft of the first-order motor, a clutch spline shaft extending leftwards and rightwards is arranged in the first-order motor shaft in a spline connection mode, one end, far away from the first-order motor shaft, of the clutch spline shaft extends into the clutch cavity, a clutch spring block is rotatably arranged on the outer surface of the clutch spline shaft, a clutch compression spring fixed on the left wall of the clutch cavity is fixedly arranged on the left wall of the clutch cavity, a line shaft extending leftwards and rightwards and capable of being in spline connection with the clutch spline shaft is arranged on the left wall of the clutch cavity, a main line wheel is fixedly arranged at one end, far away from the clutch spline shaft, of the line shaft extends into the main line wheel cavity, a first-order line wheel cavity is, first order wheel shaft internal rotation is provided with and extends and runs through first order wheel shaft in first order wheel chamber, first order wheel shaft external fixation is provided with first order line wheel, first order wheel shaft is located the external fixation of first order wheel left and right sides is provided with a first order gear, first order wheel surface coiling and fixed be provided with same coiling and fix act as go-between on the thread wheel surface, first order wheel chamber roof intercommunication is provided with three open-ended first order spouts on the front and back, first order cross bridge chamber roof is located first order spout part bilateral symmetry be provided with first order gear engagement's first order rack.

5. An accessible bus door as defined in claim 1, wherein: the clutch lever is characterized in that the clutch lever cavity is internally provided with a clutch lever extending and fixed on the right wall of the clutch spring block, the front wall of the clutch lever cavity is communicated with a push rod cavity communicated with the second-order rack cavity, a push rod extending forwards and backwards is arranged in the push rod cavity, the push rod extends backwards to abut against the back of the clutch lever cavity, the push rod extends forwards to abut against the second-order rack cavity and the second-order rack, the outer surface of the push rod is fixedly provided with a push rod spring block, and the back wall of the push rod spring block is fixedly provided with a push rod compression spring fixed on the back wall of the push rod cavity.

Technical Field

The invention relates to the field related to automobile electronic control, in particular to an accessible bus door.

Background

At present stage bus station all is higher than ground, but highly less relatively, when facing rainy day, often there is ponding before the bus station, bus stop or other vehicles are through all can the splash, bring inconvenience for the people in the bus station, often get into the bus in advance in addition, many people crowd before the bus station, these behaviors are very dangerous, take place for avoiding such condition, there is the area to improve the height at bus station, but with it bring the difficulty of getting on or off the bus, the difficulty of bus driver's bus station has also been improved, for solving the problem that bus stop difficulty and passenger get on or off the bus difficulty, it is necessary to set up a accessible bus door.

Disclosure of Invention

The invention aims to provide an obstacle-free bus door, which can overcome the defects in the prior art, so that the practicability of equipment is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the barrier-free bus door comprises a bus body, wherein a front-back through bus door cavity is arranged in the bus body, an upper shaft is symmetrically and fixedly arranged on the top wall of the bus door cavity in a left-right mode, an upper connecting rod extending in the left-right mode is rotatably arranged on the outer surface of the upper shaft, an upper moving shaft for realizing extension is rotatably arranged on the upper connecting rod in a moving and rotating mode far away from the upper shaft, trigger compression rods are symmetrically and fixedly arranged on the bottom wall of the bus door cavity in the left-right mode, a lower connecting rod extending in the left-right mode is rotatably arranged on the outer surface of the trigger compression rod, a lower moving shaft extending in the up-down mode is fixedly arranged on the lower connecting rod in a moving mode far away from the trigger compression rod, a bus door is fixedly arranged between each lower moving shaft and the upper moving shaft, the top wall of the bus door, a sliding block extending into the sliding groove is rotatably arranged at the position, close to the central line, of the bottom wall of the vehicle door, a door opening motor with an output shaft which is leftwards is fixedly arranged in the right wall of the door opening power cavity, a lead screw which extends leftwards and rightwards and is in threaded connection with a lead screw nut is fixedly arranged at the tail end of the output shaft of the door opening motor, a second-order transverse bridge cavity with a forwards opening is arranged in the bottom wall of the sliding groove, a second-order transverse bridge is slidably arranged in the second-order transverse bridge cavity, a first-order transverse bridge is slidably arranged in the first-order transverse bridge cavity, a first-order compression spring fixed with the rear wall of the first-order transverse bridge cavity is fixedly arranged on the rear wall of the first-order transverse bridge, support furling cavities with downwards openings are symmetrically arranged in the first-order transverse bridge leftwards and right, the support device which drives the gear to rotate by pushing the rack to cause the support frame to be placed is arranged in the second-order lower groove, the bottom wall of the sliding groove is bilaterally and symmetrically communicated with a trigger spring cavity, a trigger device which generates meshing of the gear rack by a push rod and further extends the second-order cross bridge out of the vehicle body is arranged in the trigger spring cavity, the bottom wall of the trigger spring cavity is communicated with a second-order rack cavity communicated with the second-order cross bridge cavity, the bottom wall of the second-order rack cavity is communicated with a second-order gear cavity, a second-order motor with an output shaft far away from the central line is fixedly arranged in the wall of the second-order rack cavity close to the central line, a second-order shaft extending leftwards and rightwards is fixedly arranged at the tail end of the output shaft of the second-order motor, one end of the second-, the clutch cavity is internally provided with a first-order transverse bridge extending out of the automobile body along with the rack due to the fact that a shaft is used for clutching, then a stay wire and a wire wheel are used for driving the gear to rotate, a clutch rod cavity is communicated with the right wall of the clutch cavity, a push rod device which is pushed by a push rod to enable the extending device to generate shaft clutching is arranged in the clutch rod cavity, and the automobile body bottom wall is bilaterally symmetrically provided with a groove which corresponds to the supporting furling cavity and is communicated with the position of the second-order transverse bridge cavity.

Furthermore, a supporting shaft extending leftwards and rightwards is arranged in the supporting and furling cavity, a supporting block is fixedly arranged on the outer surface of the supporting shaft, a supporting cavity with a backward opening is arranged in the supporting block, a supporting compression spring is fixedly arranged on the front wall of the supporting cavity, a supporting frame is fixedly arranged at one end of the supporting compression spring, which is far away from the supporting block, a supporting gear cavity is symmetrically arranged leftwards and rightwards in the supporting and furling cavity, a supporting spring cavity is communicated and arranged in the wall of the supporting gear cavity, which is far away from the supporting and furling cavity, two ends of the supporting shaft penetrate through the supporting gear cavity, a supporting gear is fixedly arranged on the outer surface of the supporting shaft, two ends of the supporting shaft extend into the supporting spring cavity, a supporting torsion spring fixed on the wall of the supporting spring cavity is fixedly arranged at the tail, one end of the compression spring, which is far away from the rear wall of the rack cavity, is fixedly provided with a supporting rack which is meshed with the supporting gear and extends forwards and backwards.

Further, the second order cross bridge bilateral symmetry is provided with the opening and keeps away from the rack spring chamber of first order cross bridge, the fixed rack compression spring that is provided with of rack spring chamber diapire, rack compression spring keeps away from the fixed second order rack that stretches into of rack spring chamber diapire, second order rack roof butt is provided with the trigger push rod that extends from top to bottom, trigger push rod keeps away from trigger push rod's one end stretches into trigger link that extends about trigger spring intracavity and the terminal fixed being provided with, trigger link keeps away from trigger push rod's one end is fixed to be provided with and stretches into the trigger depression bar of spout, trigger link diapire is fixed to be provided with fixes trigger compression spring on the trigger spring chamber diapire.

Furthermore, a first-order motor with a leftward output shaft is arranged in the right wall of the clutch cavity, a first-order motor shaft extending leftwards and rightwards is fixedly arranged at the tail end of the output shaft of the first-order motor, a clutch spline shaft extending leftwards and rightwards is connected and arranged in a spline manner in the first-order motor shaft, one end of the clutch spline shaft, far away from the first-order motor shaft, extends into the clutch cavity, a clutch spring block is rotatably arranged on the outer surface of the clutch spline shaft, a clutch compression spring fixed on the left wall of the clutch cavity is fixedly arranged on the left wall of the clutch spring block, a line wheel is fixedly arranged on the left wall of the clutch cavity, extending leftwards and rightwards and can be in spline connection with the clutch spline shaft, a main line wheel cavity is arranged in the left wall of the clutch cavity, one end of, the first order wheel chamber left and right wall is provided with and runs through the first order spring chamber in first order wheel chamber, first order wheel shaft internal rotation is provided with about extend and runs through the first order wheel shaft in first order wheel chamber, first order wheel shaft external fixation is provided with first order wheel, first order wheel shaft is located the external fixation of first order wheel left and right sides is provided with a first order gear, first order wheel surface is convoluteed and is fixed to be provided with same coiling and fixes act as go-between on the thread wheel surface, first order wheel chamber roof intercommunication is provided with the first order spout of three open-ended on the front and back, first order cross bridge chamber roof is located first order spout part bilateral symmetry be provided with first order gear engagement's first order rack.

Further, be provided with in the clutch lever chamber and extend and fix clutch lever on the clutch spring piece right wall, the intercommunication is provided with the intercommunication in the clutch lever chamber antetheca the push rod chamber in second order rack chamber, the push rod intracavity is provided with the push rod that extends around, the push rod stretches into backward the butt behind the clutch lever chamber clutch lever, the push rod stretches into forward second order rack chamber and butt the second order rack, the fixed push rod spring piece that is provided with of push rod spring piece rear wall is fixed be provided with the push rod compression spring on the wall behind the push rod chamber.

The invention has the beneficial effects that: the rack is driven by the pull wire and the torsion spring to rotate, so that the gear moves on the rack, the first-order cross bridge is caused to stretch, the gear and the rack are engaged through the push rod, the second-order cross bridge is caused to stretch, the extending length of the pull wire is kept unchanged when the second-order cross bridge is matched with stretching, the electronic control motor is required to rotate forwards and backwards, the stretching of the first-order cross plate wire is ensured to be followed by the stretching of the second-order cross plate, and meanwhile, the rack is pushed by being abutted to a bus station to cause the gear to rotate ninety degrees, so that the support frame rotates ninety degrees to.

Drawings

In order to more clearly illustrate the embodiments of the 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 invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of an accessible bus door of the invention.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is a schematic view of the structure of C-C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

With reference to fig. 1-4, the barrier-free bus door comprises a vehicle body 1, a front and rear penetrating vehicle door cavity 41 is arranged in the vehicle body 1, an upper shaft 34 is arranged on the top wall of the vehicle door cavity 41 in a bilateral symmetry manner, an upper connecting rod 35 extending left and right is arranged on the outer surface of the upper shaft 34 in a rotating manner, the upper connecting rod 35 is far away from the upper shaft 34 in a rotating manner, an upper moving shaft 36 extending in a realizing manner is arranged in a rotating manner, a trigger compression bar 29 is arranged on the bottom wall of the vehicle door cavity 41 in a bilateral symmetry manner, a lower connecting rod 31 extending left and right is arranged on the outer surface of the trigger compression bar 29 in a rotating manner, a lower moving shaft 32 extending up and down is arranged on the lower connecting rod 31 in a moving manner, a vehicle door 33 is fixedly arranged between the lower moving shaft 32 and the upper moving shaft 36 in each group, the top wall of the vehicle door cavity 41 is communicated, the bottom wall of the vehicle door cavity 41 is communicated with a sliding groove 43, the bottom wall of the vehicle door 33 near the central line is rotatably provided with a sliding block 42 extending into the sliding groove 43, the right wall of the door opening power cavity 37 is internally and fixedly provided with a door opening motor 40 with an output shaft facing left, the tail end of the output shaft of the door opening motor 40 is fixedly provided with a lead screw 38 extending left and right and in threaded connection with the lead screw nut 39, the bottom wall of the sliding groove 43 is internally provided with a second-order transverse bridge cavity 18 with a forward opening, the second-order transverse bridge cavity 18 is internally and slidably provided with a second-order transverse bridge 3, the second-order transverse bridge 3 is internally and slidably provided with a first-order transverse bridge cavity 17 with a forward opening, the first-order transverse bridge cavity 17 is internally and slidably provided with a first-order transverse bridge 4, the rear wall of the first-order transverse bridge 4 is fixedly provided with a first, a second-order lower open slot 72 which penetrates up and down is arranged at the position of the second-order transverse bridge 3 corresponding to the support folding cavity 8, a support device 901 which drives a gear to rotate by pushing a rack to cause the support frame to be put down is arranged in the second-order lower open slot 72, the bottom wall of the chute 43 is bilaterally symmetrically communicated with a trigger spring cavity 26, a trigger device 902 which generates the engagement of a gear rack by a push rod and further leads the second-order transverse bridge 3 to extend out of the vehicle body 1 is arranged in the trigger spring cavity 26, a second-order rack cavity 23 which is communicated with the second-order transverse bridge cavity 18 is communicated with the bottom wall of the trigger spring cavity 26, a second-order gear cavity 21 is communicated with the bottom wall of the second-order rack cavity 23, a second-order motor 13 of which an output shaft is far away from a central line is fixedly arranged in the wall, the second order axle 2 is kept away from the one end of second order motor 13 stretches into second order gear chamber 21 and end fixed second order gear 22 that is provided with, be provided with separation and reunion chamber 58 in the second order cross axle chamber 18 rear wall, it takes place the separation and reunion and then uses acting as go-between and take turns to drive gear revolve to cause to be provided with in the separation and reunion chamber 58 first order cross axle 4 stretches out along with the rack the outer extension device 903 of automobile body 1, the right wall intercommunication of separation and reunion chamber 58 is provided with clutch lever chamber 65, be provided with in the clutch lever chamber 65 and promote through the push rod device 904 that extension device 903 took place the axle separation and reunion, automobile body 1 diapire bilateral symmetry be provided with support and draw in chamber 8 position and correspond and communicate the.

Beneficially, a support shaft 7 extending leftwards and rightwards is arranged in the support furling cavity 8, a support block 9 is fixedly arranged on the outer surface of the support shaft 7, a support cavity 45 with a backward opening is arranged in the support block 9, a support compression spring 46 is fixedly arranged on the front wall of the support cavity 45, a support frame 16 is fixedly arranged at one end, far away from the support block 9, of the support compression spring 46, support gear cavities 5 are symmetrically arranged on the left and right of the support furling cavity 8, support spring cavities 11 are communicated and arranged in the wall, far away from the support furling cavity 8, of the support gear cavity 5, two ends of the support shaft 7 penetrate through the support gear cavities 5, a support gear 6 is fixedly arranged on the outer surface of the support gear cavity 7, two ends of the support shaft 7 extend into the support spring cavities 11, a support torsion spring 12 fixed on the wall of the support spring cavities 11 is, the rear wall of the rack cavity 69 is fixedly provided with a compression spring 70, and one end of the compression spring 70, which is far away from the rear wall of the rack cavity 69, is fixedly provided with a supporting rack 10 which is meshed with the supporting gear 6 and extends forwards and backwards.

Beneficially, the second-order transverse bridge 3 is bilaterally and symmetrically provided with a rack spring cavity 19 with an opening far away from the first-order transverse bridge 4, a rack compression spring 20 is fixedly arranged on the bottom wall of the rack spring cavity 19, a second-order rack 24 extending into the second-order rack cavity 23 is fixedly arranged at one end, far away from the bottom wall of the rack spring cavity 19, of the rack compression spring 20, a trigger push rod 25 extending up and down is arranged on the top wall of the second-order rack 24 in an abutting mode, one end, far away from the trigger push rod 25, of the trigger push rod 25 extends into the trigger spring cavity 26, a trigger connecting rod 28 extending left and right is fixedly arranged at the tail end of the trigger connecting rod 28, one end, far away from the trigger push rod 25, of the trigger connecting rod 28 is fixedly provided with a trigger pressing rod 29 extending into the.

Beneficially, a first-order motor 64 with an output shaft leftwards is arranged in the right wall of the clutch cavity 58, a first-order motor shaft 62 extending leftwards and rightwards is fixedly arranged at the tail end of the output shaft of the first-order motor 64, a clutch spline shaft 60 extending leftwards and rightwards is arranged in the first-order motor shaft 62 in a spline connection manner, one end of the clutch spline shaft 60, far away from the first-order motor shaft 62, extends into the clutch cavity 58, a clutch spring block 61 is rotatably arranged on the outer surface of the clutch spline shaft 60, a clutch compression spring 59 fixed on the left wall of the clutch cavity 58 is fixedly arranged on the left wall of the clutch spring block 61, a line shaft 57 extending leftwards and rightwards and capable of being in spline connection with the clutch spline shaft 60 is arranged on the left wall of the clutch cavity 58, a main line wheel cavity 56 is arranged in the left wall, a first-order wire wheel cavity 53 is arranged in the rear wall of the first-order transverse bridge 4, a first-order spring cavity 48 penetrating through the first-order wire wheel cavity 53 is arranged on the left wall and the right wall of the first-order wire wheel cavity 53, a first stage axis 50 extending left and right and penetrating the first stage wheel chamber 53 is rotatably arranged in the first stage axis 50, a first-order wire wheel 52 is fixedly arranged on the outer surface of the first-order wire shaft 50, a first-order gear 51 is fixedly arranged on the outer surface of the first-order wire shaft 50 which is positioned at the left side and the right side of the first-order wire wheel 52, the outer surface of the first-order wire wheel 52 is wound and fixedly provided with a pull wire 55 which is also wound and fixed on the outer surface of the main wire wheel 54, the top wall of the first-order line wheel cavity 53 is communicated with a first-order sliding groove 14 with three openings at the front and the rear, and the top wall of the first-order transverse bridge cavity 17 is positioned at the left and right parts of the first-order sliding groove 14 and is symmetrically provided with first-order racks 15 meshed with the first-order line gear 51.

Beneficially, a clutch rod 63 extending and fixed on the right wall of the clutch spring block 61 is arranged in the clutch rod cavity 65, a push rod cavity 68 communicating with the second-order rack cavity 23 is arranged in the front wall of the clutch rod cavity 65 in a communicating manner, a push rod 44 extending forwards and backwards is arranged in the push rod cavity 68, the push rod 44 extends backwards into the clutch rod cavity 65 and abuts against the clutch rod 63, the push rod 44 extends forwards into the second-order rack cavity 23 and abuts against the second-order rack 24, a push rod spring block 67 is fixedly arranged on the outer surface of the push rod 44, and a push rod compression spring 66 fixed on the rear wall of the push rod cavity 68 is fixedly arranged on the rear wall of the push rod spring block 67.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

In the initial state: the door 33 is closed, the slider 42 is close to the middle line, the trigger compression spring 27 is unloaded, so that the trigger link 28 is positioned at the top end of the trigger spring cavity 26, so that the rack compression spring 20 is unloaded, the second-order rack 24 is positioned at the top end of the second-order rack cavity 23 and is meshed with the second-order gear 22, the first-order transverse bridge 4 is positioned in the second-order transverse bridge 3, the first-order compression spring 47 is unloaded, the first-order transverse bridge 4 is positioned in the second-order transverse bridge cavity 18, the compression spring 70 is unloaded, so that the support rack 10 extends out of the first-order transverse bridge 4, the support torsion spring 12 is unloaded, so that the support frame 16 retracts into the support folding cavity 8, the first-order torsion spring 49 is unloaded, the first-order pulley 52 winds the pull wire 55, the clutch compression spring 59 is unloaded, so that the clutch spline shaft 60 and the wire shaft 57 are separated, the pushrod compression spring 66 is unloaded, causing the pushrod 44 to extend into the second stage rack cavity 23,

sequence of mechanical actions of the whole device:

when the device works, the door opening motor 40 rotates to drive the lead screw 38 to rotate, the lead screw 38 rotates to drive the lead screw nut 39 to move reversely left and right, the lead screw nut 39 drives the vehicle door 33 to rotate left and right to open, the vehicle door 33 drives the slide block 42 to move reversely to push the trigger pressure lever 29 to move downwards, the trigger pressure lever 29 drives the trigger connecting rod 28 to move downwards, the trigger connecting rod 28 drives the trigger push rod 25 to move downwards, the trigger compression spring 27 is pressed, the trigger push rod 25 drives the second-order rack 24 to move downwards to be meshed with the second-order gear 22, the rack compression spring 20 is pressed, the second-order rack 24 pushes the push rod 44 to move backwards, the push rod 44 drives the push rod spring block 67 to move backwards, the push rod compression spring 66 is pressed, the push rod 44 pushes the clutch lever 63 to move leftwards, the clutch rod 63 drives the clutch spring block 61 to move left, the clutch spring block 61 drives the clutch spline shaft 60 to move left and is in splined connection with the line shaft 57, the first-order motor 64 rotates to drive the first-order motor shaft 62 to rotate, the first-order motor shaft 62 rotates to drive the clutch spline shaft 60 to rotate, the clutch spline shaft 60 rotates to drive the line shaft 57 to rotate, the line shaft 57 rotates to drive the line pulley 54 to rotate, the line pulley 54 rotates to wind the pull wire 55, the line 55 pulls the line pulley 52 to rotate, the line pulley 52 rotates to drive the line shaft 50 to rotate, the line shaft 50 rotates to drive the line gear 51 to rotate, the first-order torsion spring 49 is twisted, the line gear 51 rotates to drive the first-order transverse axle 4 to move forward under the action of the first-order rack 15, the first order compression spring 47 is in tension,

when the first-order transverse bridge 4 moves to the limit of the first-order transverse bridge cavity 17, the second-order motor 13 rotates to drive the second-order shaft 2 to rotate, the second-order shaft 2 rotates to drive the second-order gear 22 to rotate, the second-order gear 22 rotates to drive the second-order rack 24 to move forward, the second-order rack 24 drives the second-order transverse bridge 3 to move forward, the second-order transverse bridge 3 drives the first-order transverse bridge 4 to move forward, the first-order motor 64 rotates reversely to drive the first-order motor shaft 62 to rotate reversely, the first-order motor shaft 62 rotates reversely to drive the clutch spline shaft 60 to rotate reversely, the clutch spline shaft 60 rotates reversely to drive the line shaft 57 to rotate reversely, the line shaft 57 rotates reversely to drive the main line wheel 54 to rotate reversely, the line 55 is released by the main line wheel 54, the first-order gear 51 is ensured to remain still and the line 55 is not to be broken, thereby the first-order transverse,

when the first-order transverse bridge 4 moves to the position where the supporting rack 10 abuts against the wall of the bus station, the supporting rack 10 is pushed to move backwards, the compression spring 70 is pressed, the supporting rack 10 drives the supporting gear 6 to rotate, the supporting gear 6 rotates to drive the supporting shaft 7 to rotate, the supporting torsion spring 12 is twisted, the supporting shaft 7 rotates to drive the supporting block 9 to rotate, the supporting block 9 rotates to drive the supporting frame 16 to rotate, the supporting frame 16 rotates to abut against the ground and then continues to rotate to be vertical to the ground, the supporting compression spring 46 is pressed, and at the moment, passengers can freely get on or off the bus,

after the passengers finish getting on or off the train, the first-order motor 64 reversely rotates to drive the first-order motor shaft 62 to reversely rotate, the first-order motor shaft 62 reversely rotates to drive the clutch spline shaft 60 to reversely rotate, the clutch spline shaft 60 reversely rotates to drive the line shaft 57 to reversely rotate, the line shaft 57 reversely rotates to drive the line pulley 54 to reversely rotate, the line pulley 54 reversely rotates to release the pull wire 55, the first-order torsion spring 49 rebounds to drive the first-order line shaft 50 to rotate, the first-order line shaft 50 rotates to drive the first-order line pulley 52 to rotate, the first-order line pulley 52 rotates to wind the pull wire 55, the first-order line shaft 50 rotates to drive the first-order line gear 51 to rotate, the first-order line gear 51 rotates to move backwards under the action of the first-order rack 15, the first-order compression spring 47 rebounds to help the first-order, the supporting rack 10 is released, the compression spring 70 rebounds to drive the supporting rack 10 to move forward, the supporting rack 10 drives the supporting gear 6 to rotate reversely, the supporting gear 6 rotates reversely to drive the supporting shaft 7 to rotate reversely, the supporting torsion spring 12 rebounds to help drive the supporting shaft 7 to rotate reversely, the supporting shaft 7 rotates reversely to drive the supporting block 9 to rotate reversely, the supporting block 9 rotates reversely to drive the supporting frame 16 to rotate reversely and retract into the supporting furling cavity 8, and the supporting compression spring 46 rebounds to drive the supporting frame 16 to return to the original position,

when the first-order transverse bridge 4 reaches the rearmost end of the first-order transverse bridge cavity 17, the second-order motor 13 reversely rotates to drive the second-order shaft 2 to reversely rotate, the second-order shaft 2 reversely rotates to drive the second-order gear 22 to reversely rotate, the second-order gear 22 reversely rotates to drive the second-order rack 24 to move backwards, the second-order rack cavity 23 drives the second-order transverse bridge 3 to move backwards, the second-order transverse bridge 3 drives the first-order transverse bridge 4 to move backwards, the first-order motor 64 rotates to drive the first-order motor shaft 62 to rotate, the first-order motor shaft 62 rotates to drive the clutch spline shaft 60 to rotate, the clutch spline shaft 60 rotates to drive the line shaft 57 to rotate, the line shaft 57 rotates to drive the line main line wheel 54 to rotate, the line 55 is wound by the line wheel 54 to ensure that the line 55,

the first-order transverse bridge 4 reaches the rearmost end of the second-order transverse bridge cavity 18, the door opening motor 40 rotates reversely to drive the lead screw 38 to rotate reversely, the lead screw 38 drives the lead screw nut 39 to move relatively, the lead screw nut 39 drives the vehicle door 33 to rotate relatively and close, the vehicle door 33 drives the lower moving shaft 32 to move relatively to release the trigger press rod 29, the trigger compression spring 27 rebounds to drive the trigger connecting rod 28 to move upwards, the trigger connecting rod 28 drives the trigger push rod 25 to move upwards to release the second-order rack 24, the rack compression spring 20 rebounds to drive the second-order rack 24 to move upwards to separate from the second-order gear 22, the second-order rack 24 releases the push rod 44, the push rod compression spring 66 rebounds to drive the push rod spring block 67 to move forwards, the push rod spring block 67 drives the push rod 44 to release the clutch lever 63, the clutch compression spring 59 rebounds to drive the clutch spring block 61 to move rightwards, the clutch spring block 61 drives the clutch spline shaft 60 to move rightwards and separate from the line shaft 57, and the clutch spring block 61 drives the clutch rod 63 to move rightwards and restore to the original state, so that the door is opened and closed once.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.