CN111775990A

CN111775990A - Subway carriage capable of fastening wheelchair and provided with wheelchair cab apron

Info

Publication number: CN111775990A
Application number: CN202010691853.XA
Authority: CN
Inventors: 李潍
Original assignee: Pujiang Huiyi Intelligent Technology Co ltd
Current assignee: Pujiang Huiyi Intelligent Technology Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2020-10-16

Abstract

The invention discloses a subway carriage capable of fastening a wheelchair and provided with a wheelchair cab apron, which comprises a subway carriage, a moving cavity which is communicated with the left and the right is arranged in the subway carriage, a motor cavity is arranged on the rear end wall of the moving cavity in a communicating way, the invention is applied to the users of wheelchairs in subway traffic, in the moving process, the upper and lower clamping mechanisms can fix the wheelchair handle to prevent the wheelchair from deviating and causing personnel damage, meanwhile, the wheelchair can be completely fixed through the jacking of the limiting rod, so that passengers on the wheelchair can be safer, and the push mechanism ensures that the ferry plate can pass through safely when the wheelchair passes through the subway gap, meanwhile, the ferry plate can be automatically fed in and out through the ejector rod, and the ferry plate is prevented from completely sliding out through the limiting block to damage people.

Description

Subway carriage capable of fastening wheelchair and provided with wheelchair cab apron

Technical Field

The invention relates to the field related to railway locomotives, in particular to a subway carriage which can fasten a wheelchair and is provided with a wheelchair cab apron.

Background

The subway is a carrier for carrying passengers, and is mainly applied to subway traffic, the conventional common subway only has the function of taking the passengers, and a larger gap is formed between the subway and a waiting platform, so that the passengers with inconvenient legs and feet and needing to take wheelchairs can get on or off the subway very inconveniently, and the wheelchairs in the subway carriage can easily slide around under the influence of inertia, so that the safety of the passengers can be influenced.

Disclosure of Invention

In order to solve the problems, the invention provides a subway carriage capable of fastening a wheelchair and provided with a wheelchair cab apron, which comprises a subway carriage, wherein a motion cavity which is communicated from left to right is arranged in the subway carriage, a motor cavity is communicated with the rear end wall of the motion cavity, an up-and-down clamping mechanism is arranged in the motion cavity, the up-and-down clamping mechanism comprises a threaded block which slides from left to right on the rear wall of the motor cavity, a first connecting block is fixedly arranged on the upper side of the front end surface of the threaded block, a second connecting block is fixedly arranged on the front end surface of the first connecting block, a sliding block is fixedly arranged on the front end surface of the second connecting block, a sliding rod is arranged in the sliding connection in the sliding block, fixed rods are fixedly arranged on the rear end surfaces of two sides of the sliding rod, the rear ends of the fixed rods are arranged on the rear end wall of the motion cavity, and a sliding groove is arranged on the front end, the upper and lower sliding connection is provided with a clamping block in the sliding chute, the front end of the clamping block is U-shaped, a clamping cavity is arranged in the clamping block, the rear wall of the clamping cavity is fixedly connected with a compression spring, the front end of the compression spring is fixedly connected with a butt block, the front end of the butt block extends into the motion cavity, the upper side and the lower side of the butt block are respectively hinged with a rotating block which is vertically symmetrical by taking the butt block as a symmetrical center, the front end surface of the rotating block is fixedly provided with a clamping rod, the surfaces, far away from each other, of the two clamping rods respectively slide left and right in the upper end wall and the lower end wall of the clamping cavity, one surface, close to each other, of the two clamping rods is internally provided with a handrail, the rear circumferential surface of the handrail can be mutually abutted against the front end surface of the butt block, the left end of the handrail is fixedly provided with a wheelchair, the bottom wall of the motion cavity is provided with a butt cavity communicated, push mechanism includes the gliding ejector pin of side about on the wall of butt chamber front end, the connecting rod has set firmly on the left end face of ejector pin, slide bar about having set firmly on the left side terminal surface of connecting rod, the rear end of slide bar stretches into about the motor intracavity and set firmly on the preceding terminal surface of screw thread piece, the rear end of ejector pin is the slope form, just the rear end butt of ejector pin is equipped with the cab apron, the cab apron is in slide around between the upper and lower end wall in butt chamber, cab apron right-hand member face front side has set firmly the spring block, the right-hand member face of spring block is in slide around on the right wall in butt chamber, the preceding terminal surface of spring block has linked firmly extension spring, extension spring's preceding terminal surface links firmly on the antetheca in butt chamber.

Preferably, a large motor is fixedly embedded on the left wall of the motor cavity, a screw is arranged on the right end face of the large motor in a power connection mode, and the thread block is in threaded connection with the screw.

Preferably, the bottom wall of the motion cavity is provided with wheels in a left-right sliding manner, a wheel shaft is fixedly arranged in each wheel, a hydraulic base is fixedly arranged in the abutting cavity, the rear section of the hydraulic base is positioned in the motor cavity, the hydraulic base is provided with a hydraulic cavity in a penetrating manner, a driving block and a driven block are arranged in the hydraulic cavity in a sliding manner, the driving block seals an opening on the left side of the hydraulic cavity, the driven block seals an opening on the upper side of the hydraulic cavity, the hydraulic cavity is positioned between the driving block and the driven block and filled with hydraulic oil, a stressed rod is fixedly arranged on the upper end surface of the driving block, the upper end of the stressed rod extends into the motion cavity, the stressed rod can abut against the wheels, the lower end surface of the driving block is fixedly connected with a return spring, the lower end of the return spring is fixedly arranged on the bottom wall of the hydraulic cavity, and a limiting rod is fixedly arranged on the front end surface of the driven block, the limiting rod extends forwards into the motion cavity, a left spring and a right spring are fixedly connected to the rear end face of the driven block, and the rear ends of the left spring and the right spring are fixedly connected to the rear end wall of the hydraulic cavity.

Preferably, what communicate on the back wall in butt chamber is equipped with the outlet chamber, the cab apron can slide around in the outlet chamber, the stopper has set firmly respectively on the terminal surface about the cab apron, the stopper is unable to pass through the outlet chamber, the upper wall in outlet chamber rotates to be connected and is equipped with the rotating door, the rotating door lower extreme can go out the oral cavity and rotate right, the rear side that rotates the door is equipped with the subway platform, the cab apron can stretch the up end of subway platform.

Preferably, a separation top block is fixedly arranged on the front end face of the right side of the sliding rod, the front end face of the separation top block is inclined towards the right, and the front end face of the separation top block can be abutted to the handrail.

The invention has the beneficial effects that: the invention is applied to a user of a wheelchair in subway traffic, in the moving process, the wheelchair handle can be fixed through the upper and lower clamping mechanisms, the wheelchair is prevented from being deviated and causing personnel damage, meanwhile, the wheelchair can also be completely fixed through the jacking of the limiting rod, so that passengers on the wheelchair can be safer, the push mechanism ensures that the wheelchair can safely pass through the ferry plate when passing through a subway gap, the automatic in and out of the ferry plate can be realized through the ejector rod, and the limiting block prevents the ferry plate from completely sliding out and causing damage to people groups.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of a subway carriage capable of fastening a wheelchair and equipped with a wheelchair cab apron according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 2;

FIG. 4 is a schematic view of the structure in the direction "C-C" of FIG. 3;

FIG. 5 is an enlarged schematic view of "D" of FIG. 1;

FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 5;

FIG. 7 is a schematic view of the structure in the direction "F-F" of FIG. 1;

fig. 8 is an enlarged schematic view of "G" of fig. 2.

Detailed Description

The invention will now be described in detail with reference to fig. 1-8, for ease of description, the orientations described below will now be 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.

The invention relates to a subway carriage capable of fastening a wheelchair and provided with a wheelchair cab apron, which comprises a subway carriage 11, wherein a moving cavity 12 which is through from left to right is arranged in the subway carriage 11, a motor cavity 26 is communicated with the rear end wall of the moving cavity 12, an upper clamping mechanism 101 and a lower clamping mechanism 101 are arranged in the moving cavity 12, the upper clamping mechanism 101 comprises a threaded block 31 which slides from left to right on the rear wall of the motor cavity 26, a first connecting block 24 is fixedly arranged on the upper side of the front end surface of the threaded block 31, a second connecting block 25 is fixedly arranged on the front end surface of the first connecting block 24, a sliding block 13 is fixedly arranged on the front end surface of the second connecting block 25, a sliding rod 15 is slidably connected in the sliding block 13, a fixing rod 17 is fixedly arranged on the rear end surfaces of two sides of the sliding rod 15, the rear end of the fixing rod 17 is arranged on the rear end wall of the moving cavity 12, the upper and lower sliding connection in the chute 14 is provided with a clamping block 22, the front end of the clamping block 22 is U-shaped, a clamping cavity 47 is provided in the clamping block 22, a compression spring 48 is fixedly connected to the rear wall of the clamping cavity 47, a butting block 49 is fixedly connected to the front end of the compression spring 48, the front end of the butting block 49 extends into the motion cavity 12, the upper and lower sides of the butting block 49 are respectively hinged with a rotating block 50 which is vertically symmetrical with the butting block 49 as a symmetry center, the front end surface of the rotating block 50 is fixedly provided with a clamping rod 51, the surfaces far away from each other of the two clamping rods 51 respectively slide left and right in the upper and lower end walls of the clamping cavity 47, the surfaces near each other of the two clamping rods 51 are provided with handrails 21, the rear peripheral surface of the handrails 21 can be mutually butted against the front end surface of the butting block 49, the left end of the handrails 21 is fixedly provided with a wheelchair 23, the bottom wall of the motion cavity 12 is provided with an abutting cavity 19 communicated with each other, a pushing mechanism 102 is arranged in the abutting cavity 19, the pushing mechanism 102 comprises a jack 39 sliding left and right on the front end wall of the abutment chamber 19, a connecting rod 40 is fixedly arranged on the left end surface of the mandril 39, a left sliding rod 27 and a right sliding rod 27 are fixedly arranged on the left end surface of the connecting rod 40, the rear ends of the left and right sliding rods 27 extend into the motor cavity 26 and are fixedly arranged on the front end surface of the thread block 31, the rear end of the mandril 39 is inclined, and the rear end of the ejector rod 39 is abutted with a ferry plate 18, the ferry plate 18 slides back and forth between the upper end wall and the lower end wall of the abutting cavity 19, a spring block 37 is fixedly arranged on the front side of the right end face of the ferry plate 18, the right end face of the spring block 37 slides back and forth on the right wall of the abutting cavity 19, the front end face of the spring block 37 is fixedly connected with an extension spring 38, and the front end face of the extension spring 38 is fixedly connected to the front wall of the abutting cavity 19.

Advantageously, a large motor 32 is fixedly embedded on the left wall of the motor cavity 26, a screw 33 is provided on the right end face of the large motor 32 in a power connection manner, the threaded block 31 is in threaded connection with the screw 33, when the wheelchair 23 enters the carriage, a passenger can freely adjust the height of the clamping block 22, so that the handrail 21 can enter the clamping block 22 until the handrail 21 contacts the abutting block 49, at this time, the abutting block 49 is pressed by the handrail 21 to move backwards, so as to compress the compression spring 48, and under the influence of the movement of the abutting block 49, so as to drive the two clamping rods 51 to approach the handrail 21 and continuously clamp the handrail 21, when the passenger arrives at the station, the large motor 32 starts to drive the screw 33 to rotate, so as to drive the threaded block 31 to start sliding rightwards, so as to drive the handrail 21 to start sliding rightwards, so as to save the strength of a person sitting on the wheelchair and move the handrail 21 rightwards, the thread block 31 drives the left and right slide bars 27 to move rightwards, so as to drive the connecting rod 40 to slide rightwards, further drive the push rod 39 to slide rightwards, further continuously abut against the transition plate 18, further cause the transition plate 18 to move backwards, further drive the spring block 37 to move forwards, further continuously stretch the extension spring 38, when the wheelchair passes through the transition plate 18, at the moment, the large motor 32 runs reversely, further the screw 33 rotates reversely, further the thread block 31 is driven to move leftwards, further the left and right slide bars 27 are driven to move, further the connecting rod 40 is driven to move, further the push rod 39 is driven to move, further the extension spring 38 is continuously contracted, further the spring block 37 is driven to move forwards, and further the transition plate 18 is driven to move forwards.

Beneficially, the bottom wall of the moving cavity 12 is provided with a wheel 29 in a left-right sliding manner, a wheel shaft 30 is fixedly arranged in the wheel 29, the abutting cavity 19 is fixedly provided with a hydraulic base 44, a rear section of the hydraulic base 44 is located in the motor cavity 26, the hydraulic base 44 is provided with a hydraulic cavity 43 in a penetrating manner, a driving block 42 and a driven block 46 are slidably arranged in the hydraulic cavity 43, the driving block 42 seals a left opening of the hydraulic cavity 43, the driven block 46 seals an upper opening of the hydraulic cavity 43, the hydraulic cavity 43 is located between the driving block 42 and the driven block 46 and is filled with hydraulic oil, a stressed rod 28 is fixedly arranged on an upper end face of the driving block 42, an upper end of the stressed rod 28 extends into the moving cavity 12, the stressed rod 28 can abut against the wheel 29, a lower end face of the driving block 42 is fixedly connected with a return spring 52, the lower end of the reset spring 52 is fixedly arranged on the bottom wall of the hydraulic cavity 43, the front end face of the driven block 46 is fixedly provided with a limiting rod 45, the limiting rod 45 extends forwards into the motion cavity 12, the rear end face of the driven block 46 is fixedly connected with a left spring 53 and a right spring 53, the rear ends of the left spring 53 and the right spring 53 are fixedly connected to the rear end wall of the hydraulic cavity 43, when the wheelchair 23 enters the motion cavity 12, the wheelchair continuously slides rightwards until the wheelchair 29 passes through the stressed rod 28, at the moment, the movement of the wheelchair 29 drives the stressed rod 28 to move downwards, so that the driving block 42 is driven to move downwards, the reset spring 52 is continuously extruded, the driven block 46 is driven to move forwards, the limiting rod 45 is driven to move, the left spring 53 and the right spring 53 are continuously stretched, the limiting rod 45 extends into the wheelchair 29, the function of fastening the wheelchair 29 is achieved, and when the wheelchair 29 is subjected to rightward movement force, at this moment, the wheel 29 passes through the stress rod 28, and at this moment, the stress rod 28 is no longer influenced by pressure, so that the stress rod is influenced by the resilience of the return spring 52 to be restored to the initial position, so that the driving block 42 and the stress rod 28 are driven to be restored to the initial position, under the influence of the driving block 42, the left spring 53 and the right spring 53 are not contracted to drive the driven block 46 and the limiting rod 45 to be restored to the initial position, and at this moment, the limiting rod 45 is contracted to be no longer fastened to the wheel 29.

Advantageously, an outlet cavity 34 is provided in communication with the rear wall of the abutting cavity 19, the ferry plate 18 can slide back and forth in the outlet cavity 34, limit blocks 36 are fixedly provided on the left and right end surfaces of the ferry plate 18, respectively, the limit blocks 36 cannot pass through the outlet cavity 34, a rotating door 35 is rotatably connected to the upper wall of the outlet cavity 34, the lower end of the rotating door 35 can rotate rightwards in the outlet cavity 34, a subway platform 41 is provided on the rear side of the rotating door 35, the ferry plate 18 can extend to the upper end surface of the subway platform 41, when the ferry plate 18 moves backwards, the rotating door 35 is opened through the outlet cavity 34, and thus the rotating door extends onto the subway platform 41, and due to the influence of the limit blocks 36, the ferry plate 18 can be opened to a just good position without completely disengaging the ferry plate 18.

Advantageously, a separation top block 16 is fixedly arranged on the front end face of the right side of the sliding rod 15, the front end face of the separation top block 16 is inclined towards the right, the front end face of the separation top block 16 can be abutted against the armrest 21, when the wheelchair 23 continuously moves towards the right, until the wheelchair 23 abuts against the separation top block 16, at this time, under the influence of the separation top block 16, the armrest 21 can be continuously separated from the clamping block 22 until the wheelchair 23 is completely separated from the clamping block 22.

The following detailed description of the steps of using a wheelchair-fastenable subway carriage equipped with a wheelchair cab apron is described with reference to fig. 1 to 8: in the initial state, the large motor 32 does not start to operate, the wheelchair 23 does not enter the movement cavity 12, the armrest 21 is not clamped in the clamping block 22, the clamping block 22 is not abutted to the armrest 21, the clamping rod 51 is not abutted to the armrest 21, the compression spring 48, the return spring 52 and the left and right springs 53 are not compressed or stretched, the wheel 29 is not abutted to the stressed rod 28, the driving block 42 and the driven block 46 are in the initial position, the threaded block 31, the left and right sliding rods 27, the connecting rod 40 and the ejector rod 39 are in the initial position, the cross plate 18 is not extended into the outlet cavity 34, the rotating door 35 is not opened rightwards, the limiting block 36 is not abutted to the rear wall of the abutting cavity 19, the abutting block 49 is in the initial position, and the clamping block 22 is located in the initial position.

When the wheelchair 23 enters the motion cavity 12, the wheelchair 23 continuously slides rightwards until the wheels 29 pass through the stress rod 28, at the moment, the wheels 29 move to drive the stress rod 28 to move downwards, so as to drive the driving block 42 to move downwards, further continuously extrude the reset spring 52, further drive the driven block 46 to move forwards, further drive the limiting rod 45 to move, further continuously stretch the left and right springs 53, further enable the limiting rod 45 to extend into the wheels 29, further play a role in fastening the wheels 29, at the moment, passengers can freely adjust the height of the clamping block 22, further enable the handrail 21 to be clamped into the clamping block 22, until the handrail 21 contacts with the abutting block 49, at the moment, the abutting block 49 is extruded by the handrail 21 to move backwards, thereby compressing the compression spring 48, influenced by the movement of the abutting block 49, further drive the two clamping rods 51 to approach the handrail 21, and continuously clamp the handrail 21, thereby fastening the wheelchair 23 so that the wheelchair does not slide accidentally; when a passenger arrives at a station, the large motor 32 starts to drive the screw 33 to rotate, so that the screw block 31 is driven to start to slide rightwards, the handrail 21 is driven to start to slide rightwards, the strength of the passenger sitting on the wheelchair is saved, when the wheel 29 is subjected to a rightward moving force, the wheel 29 passes through the stress rod 28, the stress rod 28 is not influenced by pressure any more, the stress rod 28 is influenced by the resilience of the return spring 52 to return to the initial position, the driving block 42 and the stress rod 28 are driven to return to the initial position, under the influence of the driving block 42, the left spring 53 and the right spring 53 are not contracted to drive the driven block 46 and the limiting rod 45 to return to the initial position, the limiting rod 45 is contracted to not fasten the wheel 29, the screw block 31 drives the left sliding rod 27 to move rightwards, the wheelchair 23 is driven to move rightwards until the wheelchair 23 abuts against the separation top block 16, and is influenced by, the handrail 21 can be continuously separated from the clamping block 22 until the wheelchair 23 is completely separated from the clamping block 22, at the moment, the left and right slide rods 27 drive the connecting rod 40 to slide rightwards, further drive the ejector rod 39 to slide rightwards, further enable the ejector rod 39 to continuously abut against the cab apron 18, further enable the cab apron 18 to move backwards, further drive the spring block 37 to move forwards, further continuously stretch the extension spring 38, and when the cab apron 18 moves backwards, the rotary door 35 is opened through the outlet cavity 34 and then stretches to the subway platform 41, so that the wheelchair can pass through the subway platform with a gap and is influenced by the limiting block 36, further enable the cab apron 18 to be opened to a set position, the cab apron 18 cannot be completely separated, and influence on people is prevented; when the wheelchair passes through the transition plate 18, the large motor 32 runs reversely, so that the screw 33 rotates reversely, and the screw block 31 is driven to move leftwards, and the left and right slide bars 27 are driven to move, and the connecting rod 40 is driven to move, and the ejector rod 39 is driven to move, so that the extension spring 38 is continuously contracted, and the spring block 37 is driven to move forwards, and the transition plate 18 is driven to move forwards and return to the initial position.

When the wheelchair enters the subway platform 41, the large motor 32 drives the screw block 31 to move leftwards and return to the initial position, so as to drive the left and right slide rods 27, the connecting rod 40 and the ejector rod 39 to return to the initial position, so as to drive the transition plate 18 to return to the initial position, so as to drive the slide block 13 to return to the initial position, and thus prepare for the next person needing the device.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. The utility model provides a can fasten the wheelchair and be equipped with subway carriage of wheelchair cab apron, includes subway carriage, its characterized in that: the subway train carriage is characterized in that a moving cavity which is communicated from left to right is arranged in the subway carriage, a motor cavity is arranged on the rear end wall of the moving cavity in a communicated manner, an upper clamping mechanism and a lower clamping mechanism are arranged in the moving cavity, the upper clamping mechanism and the lower clamping mechanism comprise threaded blocks which slide from left to right on the rear wall of the motor cavity, a first connecting block is fixedly arranged on the upper side of the front end face of each threaded block, a second connecting block is fixedly arranged on the front end face of each first connecting block, a sliding block is fixedly arranged on the front end face of each second connecting block, a sliding rod is arranged in each sliding block in a connected manner, fixing rods are fixedly arranged on the rear end faces of the two sides of each sliding rod, the rear ends of the fixing rods are arranged on the rear end wall of the moving cavity, a sliding groove is formed in the front end face of each sliding block, a clamping block is arranged in the sliding manner, the front end of the compression spring is fixedly connected with a butt joint block, the front end of the butt joint block extends into the motion cavity, the upper side and the lower side of the butt joint block are respectively hinged with a rotating block which is vertically symmetrical by taking the butt joint block as a symmetrical center, a clamping rod is fixedly arranged on the front end surface of the rotating block, one surface, far away from each other, of the two clamping rods slides left and right in the upper end wall and the lower end wall of the clamping cavity respectively, a handrail is arranged in one surface, close to each other, of the two clamping rods, the rear peripheral surface of the handrail can be mutually butted with the front end surface of the butt joint block, a wheelchair is fixedly arranged at the left end of the handrail, a butt joint cavity communicated with each other is arranged on the bottom wall of the motion cavity, a pushing mechanism is arranged in the butt joint cavity and comprises a push rod which slides left and right on the front end wall of the butt joint cavity, a connecting rod is fixedly arranged on the left end surface of the, the rear end of controlling the slide bar stretches into the motor intracavity and sets firmly on the preceding terminal surface of screw thread piece, the rear end of ejector pin is the slope form, just the rear end butt of ejector pin is equipped with the cab apron, the cab apron is in slide around between the upper and lower end wall in butt chamber, cab apron right-hand member face front side has set firmly the spring block, the right-hand member face of spring block is in slide around on the right wall in butt chamber, the preceding terminal surface of spring block has linked firmly extension spring, extension spring's preceding terminal surface links firmly on the antetheca in butt chamber.

2. A wheelchair-securable subway car equipped with a wheelchair cab apron as claimed in claim 1, wherein: the left wall of the motor cavity is fixedly embedded with a large motor, the right end face of the large motor is in power connection with a screw, and the thread block is in threaded connection with the screw.

3. A wheelchair-securable subway car equipped with a wheelchair cab apron as claimed in claim 2, wherein: the bottom wall of the motion cavity is provided with wheels in a left-right sliding manner, wheel shafts are fixedly arranged in the wheels, a hydraulic base is fixedly arranged in the abutting cavity, the rear section of the hydraulic base is positioned in the motor cavity, the hydraulic base is provided with a hydraulic cavity in a penetrating manner, a driving block and a driven block are arranged in the hydraulic cavity in a sliding manner, the driving block seals an opening on the left side of the hydraulic cavity, the driven block seals an opening on the upper side of the hydraulic cavity, the hydraulic cavity is positioned between the driving block and the driven block and filled with hydraulic oil, a stress rod is fixedly arranged on the upper end face of the driving block, the upper end of the stress rod extends into the motion cavity, the stress rod can be abutted against the wheels, the lower end face of the driving block is fixedly connected with a return spring, the lower end of the return spring is fixedly arranged on the bottom wall of the hydraulic cavity, and a limiting rod is fixedly arranged on the front end face of the driven, the limiting rod extends forwards into the motion cavity, a left spring and a right spring are fixedly connected to the rear end face of the driven block, and the rear ends of the left spring and the right spring are fixedly connected to the rear end wall of the hydraulic cavity.

4. A wheelchair-securable subway car equipped with a wheelchair cab apron as claimed in claim 1, wherein: the utility model discloses a subway entrance guard, including butt chamber, ferry plate, stopper, outlet chamber, door, subway platform, the last outlet chamber that is equipped with that communicates of back wall in butt chamber, the ferry plate can slide around the outlet chamber, the stopper has set firmly respectively on the terminal surface about the ferry plate, the stopper is unable to pass through the outlet chamber, the upper wall in outlet chamber rotates to be connected and is equipped with the rotation door, the rotation door lower extreme can the right rotation in the outlet chamber, the rear side that rotates the door is equipped with the subway platform, the ferry plate can stretch the up end of subway platform.

5. The subway car capable of fastening a wheelchair and equipped with a wheelchair cab apron as claimed in claim 4, wherein: the front end face of the right side of the sliding rod is fixedly provided with a separation top block, the front end face of the separation top block is inclined rightwards, and the front end face of the separation top block can be abutted to the handrail.