CN110043155B

CN110043155B - bus door

Info

Publication number: CN110043155B
Application number: CN201910414729.6A
Authority: CN
Inventors: 顾惠芬
Original assignee: Famei Rui Holdings Ltd
Current assignee: Famei Rui Holdings Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2023-12-22
Anticipated expiration: 2039-05-17
Also published as: CN110043155A

Abstract

A bus door is a plug-pull type door suitable for buses, and comprises two door pages, a base frame, a beam frame, a driving device and an upper locking mechanism, wherein the plug and the pull of the plug-pull type door are integrally completed by the same driving device, the structure is simple, the control is accurate, and after the door is opened, the door is attached to the outer side of a side wall of a bus body and does not occupy the space in the bus body. The utility model has the upper locking mechanism and the lower locking mechanism, the upper locking mechanism is mechanical and is controlled by the air cylinder, the lower locking mechanism adopts the electromagnet, when two door pages are closed, the swing locking plate of the upper locking mechanism limits the lock catch to block the movement of the sliding block assembly, thereby locking the two door pages, and the lower locking mechanism strengthens the locking of the door pages. When accidents happen, the electromagnetic valve of the air cylinder and the electromagnet of the control air cylinder are powered off, the swing lock plate is separated from the lock catch, the moving piece of the electromagnet is separated from the pin hole block, the car door can be opened manually, and passengers can leave the carriage safely.

Description

Bus door

Technical Field

The present utility model relates to bus doors.

Background

The utility model of China application number CN201420345679.3 discloses an electro-pneumatic external translation door for buses, which comprises a door body, a push-out driving mechanism, a translation driving mechanism and a door head; the door body is provided with two wings; the two groups of pushing-out driving mechanisms are respectively used for driving the two door bodies to translate forwards and backwards; the translation driving mechanism drives the two door bodies to move left and right; the door head is arranged above the door body. The utility model realizes the 'plug' action of the door body through two groups of driving mechanisms, has no locking measure after the door is closed, and has certain potential safety hazard. The utility model of China application number CN201720160944.4 discloses a bus door, which comprises a door frame, a door and a driving device, wherein the door comprises two groups of door plates, each group of door plates comprises a first door plate hinged with the door frame and a second door plate hinged with the first door plate, the upper end of each second door plate is rotationally connected with a connecting piece arranged on the door frame in a sliding manner through a connecting shaft, the driving device comprises a lead screw, a sliding block and a motor, the lead screw is provided with two threaded sections with opposite thread directions, each threaded section is in threaded connection with one sliding block, the sliding block is connected with the corresponding connecting piece, and the motor is used for driving the lead screw to rotate. The connecting piece comprises a sucker electromagnet and a connecting block which are oppositely arranged, the sucker electromagnet and the connecting block are in sliding connection with a door frame, when the sucker electromagnet is powered off, the sucker electromagnet and the connecting block are disconnected, and the door can be manually opened, but the door is a folding door, and after the door is opened, a certain space is occupied in the car body.

Disclosure of Invention

The utility model aims to provide a plug-pull type bus door with high safety.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a bus door comprises two door leaves, a base frame fixed on a bus body part above the door leaves, a beam frame connected with the base frame in a sliding way in the front-back direction, a driving device and an upper locking mechanism; the driving device is provided with a bidirectional screw rod, a motor for driving the bidirectional screw rod to rotate, two nuts in threaded connection with different rotation direction sections of the bidirectional screw rod, a guide shaft and two sliding block components in sliding connection with the guide shaft, the bidirectional screw rod and the guide shaft are supported by a beam frame, the two nuts are respectively connected with the two sliding block components, a portal frame and a roller frame are fixed at the bottom of each sliding block component, each portal frame is connected with the upper end of the back of a corresponding door page, two symmetrical upper rails are fixed on the base frame, one end of each upper rail, which faces the rotation direction boundary of the bidirectional screw rod, is an inward bent arc section, and an upper roller on the roller frame is arranged in the corresponding upper rail and is in movable fit; the upper locking mechanism comprises an adapter plate fixed at the center of the front side of the beam frame, an air cylinder fixed on the adapter plate, an inserting block driven by the air cylinder to lift, two lock catches respectively fixed on the two sliding block assemblies, and two swing lock plates respectively corresponding to the two lock catches, wherein the middle part of each swing lock plate is hinged with the adapter plate, the top of each swing lock plate is provided with a limiting step limiting the lock catches, the lower end of each swing lock plate is provided with a first bearing, the inserting block is inserted between the two first bearings, the lower parts of the two side surfaces of the inserting block, which are contacted with the two first bearings, are inclined planes, and a spring is arranged between the upper end of each swing lock plate and the lower part of the adapter plate.

And a lower locking mechanism is respectively arranged between the bottoms of the two door leaves and the vehicle body, each lower locking mechanism is provided with a pin hole block fixed at the lower end of the back of the door leaf, and electromagnets respectively corresponding to the two pin hole blocks are arranged in the vehicle body below the door leaves, and a moving part of each electromagnet is in movable fit with the pin hole of the pin hole block.

The lower parts of the back surfaces of the two door pages are respectively provided with a guide rail groove, the vehicle body parts corresponding to the outer sides of the lower parts of the door pages are respectively provided with a lower guide rail device, each lower guide rail device comprises a lower guide rail arranged in each guide rail groove and a lower swing arm which is pin-connected on the corresponding hinge seat, one end of each lower guide rail, which is close to the vehicle body, is arc-shaped, and each lower swing arm is provided with a lower roller which is in movable fit with the corresponding lower guide rail.

And a limit switch mounting frame is fixed on the middle part of the guide shaft, and a limit switch is arranged on the limit switch mounting frame and close to the sliding limit of one of the sliding block assemblies.

The sliding block assembly comprises a nut seat, a connecting seat and a sliding block main body which are sequentially arranged from top to bottom, the nut seat is hinged with the connecting seat through a pin shaft, the connecting seat is fixed at the top of the sliding block main body, the lower half part of the nut is embedded into a top groove of the nut seat, and the sliding block main body is connected onto the guide shaft in a sliding manner.

The front of the insert block is provided with a cover plate, the cover plate is connected with the adapter plate, the center of the cover plate is provided with a vertical guide groove, the front side surface of the insert block is provided with two second bearings, and the two second bearings are positioned in the guide groove and are in movable fit.

The utility model has the following positive effects: the plug-pull type vehicle door is suitable for buses, the plug and pull actions of the plug-pull type vehicle door are integrally completed by the same driving device, the structure is simple, the control is accurate, and after the vehicle door is opened, the vehicle door is attached to the outer side of a side wall of a vehicle body and does not occupy the space in the vehicle body. The utility model has the upper locking mechanism and the lower locking mechanism, the upper locking mechanism is mechanical and is controlled by the air cylinder, the lower locking mechanism adopts the electromagnet, when two door pages are closed, the swing locking plate of the upper locking mechanism limits the lock catch to block the movement of the sliding block assembly, thereby locking the two door pages, and the lower locking mechanism strengthens the locking of the door pages. When accidents happen, the electromagnetic valve of the air cylinder and the electromagnet of the control air cylinder are powered off, the swing lock plate is separated from the lock catch, the moving piece of the electromagnet is separated from the pin hole block, the car door can be opened manually, and passengers can leave the carriage safely.

Drawings

Fig. 1 is a perspective view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is a reverse side view of fig. 2.

Fig. 4 is a view showing the connection of the driving device to the base frame and the beam.

Fig. 5 is a reverse side view of fig. 4.

Fig. 6 is a top view of fig. 4.

Fig. 7 is a connection view of the base frame and the beam frame.

Fig. 8 is a view of a slider assembly.

Fig. 9 is an installation view of the limit switch.

Fig. 10 is a view of the connection of the upper locking mechanism to the beam.

Fig. 11 is a view of the upper locking mechanism.

Fig. 12 is a view of the upper locking mechanism (cover plate omitted).

Fig. 13 is a view of the lower locking mechanism.

Fig. 14 is a view of the lower rail apparatus.

The labels in the figures are as follows: the device comprises a base frame 1, a beam frame 2, a driving device 3, a motor 3-1, a bidirectional screw rod 3-2, a guide shaft 3-3, a nut 3-4, a sliding block component 3-5, a nut seat 3-5-1, a connecting seat 3-5-2, a sliding block main body 3-5-3, a pin shaft 3-5-4, an upper track 3-6, a portal frame 3-7, a roller frame 3-8, an upper roller 3-8-1, an upper locking mechanism 4, an adapter plate 4-1, a cylinder 4-2, an insert block 4-3, a swing lock plate 4-4, a limit step 4-1, a first bearing 4-5, a spring 4-6, a lock catch 4-7, a cover plate 4-8, a guide groove 4-8-1, a second bearing 4-9, a connecting rod 4-10, a shaft sleeve 4-11, a door leaf 5, a guide groove 5-1, a lower locking mechanism 6, a pin hole block 6-1, an electromagnet 6-2, a panel 6-3, a lower guide rail device 7, a lower guide rail 7-1, a lower roller 7-2, a lower guide rail 7-3-8, a lower limit switch 8, a limit seat 8, a swing arm 9 and a limit switch.

Detailed Description

Example 1

Referring to fig. 1 to 13, the present embodiment includes a base frame 1, a beam 2, a driving device 3, an upper locking mechanism 4, two door leaves 5, a lower locking mechanism 6, and a lower rail device 7.

Referring to fig. 7, the base frame 1 is frame-shaped, and is composed of a front cross bar 1-1, a rear cross bar 1-3 and two side bars 1-2, wherein the two side bars 1-2 are respectively fixed with a front and rear base frame guide rail 1-2-1. The beam frame 2 is in a door shape and consists of an upper beam 2-1 and two side plates 2-2, and beam frame sliding blocks 2-2-1 which are in movable fit with the base frame guide rails 1-2-1 are respectively fixed at the bottoms of the two side plates 2-2. The beam 2 can slide back and forth on the base frame 1.

Referring to fig. 2 to 9, the driving device 3 has a motor 3-1, a bi-directional screw 3-2, a guide shaft 3-3, and two slider assemblies 3-5. The bidirectional screw rod 3-2 is supported by an outer bearing seat 3-9, an intermediate bearing seat and an outer bearing seat which are fixed on the rear side surface of the upper beam, and the guide shaft 3-3 is supported by two side plates 2-2. The left-right rotation direction of the bidirectional screw rod 3-2 takes the center of the bidirectional screw rod 3-2 as a boundary. The motor 3-1 drives the bidirectional screw rod 3-2 to rotate, and the sections of the bidirectional screw rod 3-2 with different rotation directions are respectively connected with a nut 3-4 and are symmetrical. The sliding block assembly 3-5 comprises a nut seat 3-5-1, a connecting seat 3-5-2 and a sliding block main body 3-5-3 which are sequentially arranged from top to bottom, the nut seat 3-5-1 is hinged with the connecting seat 3-5-2 through a pin shaft 3-5-4, and the connecting seat 3-5-2 is fixed at the top of the sliding block main body 3-5-3. The tops of the two slide block components 3-5 are respectively connected with the two nuts 3-4, namely, the lower half parts of the nuts 3-4 are embedded into the top grooves of the nut seats 3-5-1 to be in profile connection, the lower parts of the two slide block components 3-5 are respectively connected onto the guide shaft 3-3 in a sliding manner through shaft holes, namely, the slide block main body 3-5-3 is connected onto the guide shaft 3-3 in a sliding manner through the shaft holes.

Referring to fig. 3 to 9, a portal frame 3-7 and a roller frame 3-8 are fixed at the bottom of each slider assembly 3-5, namely, at the bottom of the slider body 3-5-3, the extending end of each portal frame 3-7 is connected to the upper end of the back of the corresponding door page 5, two symmetrical upper rails 3-6 are fixed at the rear side of the front cross bar 1-1 of the base frame 1, one end of each upper rail 3-6, facing the bidirectional screw rod, of the rotation direction boundary is an inward curved arc section, the section of each upper rail 3-6 is U-shaped, the opening is downward, and the upper roller 3-8-1 on the roller frame 3-8 is arranged in the corresponding upper rail 3-6 and is in movable fit.

Referring to fig. 3 and 9, a limit switch mounting frame 9 is fixed on the middle portion of the guide shaft 3-3, and a limit switch 10 is arranged on the limit switch mounting frame 9 and near the sliding limit of one of the slider assemblies 3-6.

Referring to fig. 2, 7 and 10 to 12, the upper locking mechanism 4 includes an adapter plate 4-1, a cylinder 4-2, an insert block 4-3, two swing lock plates 4-4 and two catches 4-7. The operation of the cylinder 4-2 is controlled by a cylinder solenoid valve. The adapter plate 4-1 is fixed in the center of the front side of the beam frame 2, the air cylinder 4-2 is fixed on the adapter plate 4-1, the movable rod of the air cylinder 4-2 is connected with the insert block 4-3, the movable rod of the air cylinder 4-2 drives the insert block 4-3 to lift, the lock catch 4-7 comprises a bottom plate 4-7-1 and an upright U-shaped pipe 4-7-2 fixed on the bottom plate 4-7-1, the two lock catches 4-7 are respectively positioned on two sides of the insert block 4-3 and are respectively fixed on the corresponding connecting seat 3-5-2 by the bottom plate 4-7-1, the two swing lock plates 4-4 are respectively positioned on two sides of the insert block 4-3, the swing lock plates 4-4 are triangular, the middle part of each swing lock plate 4-4 is hinged on the insert plate 4-1, the top of each swing lock plate 4-4 is provided with a limiting step 4-7 limiting the lock catch, the lower end of each swing lock plate 4-4 is provided with a first bearing 4-5, the lower parts of two sides of the insert block 4-3 are respectively positioned on two sides of the insert block 4-3 and are respectively contacted with the two bearing surfaces 4-5 on the two sides of the two bearing surfaces 4-3. A spring 4-6 is arranged between the upper end of each swing lock plate 4-4 and the lower part of the adapter plate 4-1, and the lower end of the spring 4-6 is closer to a first bearing on the same side than the upper end of the spring 4-6. The front of the inserting block 4-3 is provided with a cover plate 4-8, the cover plate 4-8 is connected with the adapter plate 4-1 through four connecting rods, wherein two connecting rods 4-10 at the upper part loose and pass through shaft holes of the swinging lock plate 4-4, shaft sleeves 4-11 are respectively arranged outside the connecting rods 4-10 and between the adapter plate 4-1 and the swinging lock plate 4-4 and between the swinging lock plate 4-4 and the cover plate 4-8, and fasteners at two ends of the connecting rods 4-10 are adjusted to enable the swinging lock plate 4-4 to rotate around the connecting rods 4-10, so that the swinging lock plate 4-4 is hinged with the adapter plate 4-1. The center of the cover plate 4-8 is provided with a vertical guide groove 4-8-1, the front side surface of the insertion block 4-3 is provided with two second bearings 4-9, and the two second bearings 4-9 are positioned in the guide groove 4-8-1 and are in movable fit, so that the insertion block 4-3 can be lifted stably. When the air cylinder electromagnetic valve is powered on, the air cylinder electromagnetic valve controls the movable rod of the air cylinder 4-2 to extend downwards, at the moment, the straight surfaces on two sides of the insert block 4-3 are positioned between the two first bearings 4-5 of the swing lock plate 4-4, the limit step 4-4-1 of the swing lock plate 4-4 is clamped on the outer side of the U-shaped pipe of the lock catch 4-7, the two door leaves are prevented from moving outwards respectively, and at the moment, the upper locking mechanism is in a locking state. When the electromagnetic valve of the air cylinder is powered off, the movable rod of the air cylinder 4-2 is lifted upwards, the inserting block 4-3 rises along with the lifting, the two first bearings 4-5 on the swinging lock plate 4-4 roll on the two inclined planes of the inserting block 4-3, the two swinging lock plates 4-4 swing outwards by taking the connecting rod 4-10 as the center under the action of the spring 4-6, the swinging lock plates 4-4 are separated from the lock catches 4-7, and the upper locking mechanism is unlocked.

Referring to fig. 3 and 14, the lower parts of the two door leaves 5 are respectively provided with a guide rail groove 5-1, a hinging seat 8 is arranged on the vehicle body part corresponding to the outer side of the lower parts of the door leaves, the lower parts of the two door leaves 5 are respectively provided with a lower guide rail device 7, each lower guide rail device 7 comprises a lower guide rail 7-1 arranged in each guide rail groove 5-1 and a lower swing arm 7-2 pin-connected on the hinging seat 8, one end of each lower guide rail 7-1 close to the vehicle body is arc-shaped, the cross section of each lower guide rail 7-1 is U-shaped, the opening is downward, three lower idler wheels 7-3 in movable fit with the corresponding lower guide rail 7-1 are arranged on each lower swing arm 7-2, and one lower idler wheel is positioned in each lower guide rail 7-1.

Referring to fig. 3 and 13, a lower locking mechanism 6 is respectively arranged between the lower parts of two door leaves 5 and a vehicle body, each lower locking mechanism 6 is provided with a pin hole block 6-1, an electromagnet 6-2 and a panel 6-3, the pin hole block 6-1 is fixed at the lower end of the back surface of the door leaf 5, the electromagnet 6-2 is positioned in the vehicle body below the door leaves 5, the panel 6-3 fixed on the vehicle body is covered on the electromagnet 6-2, the two electromagnets 6-2 respectively correspond to the two pin hole blocks 6-1, and a moving part 6-2-1 of each electromagnet 6-2 is matched with the pin hole 6-1-1 of the pin hole block 6-1. When the electromagnet 6-2 is powered on, the moving part of the electromagnet 6-2 is inserted into the pin hole 6-1-1 of the pin hole block 6-1 through the panel 6-3, and the lower locking mechanism is in a locking state. When the electromagnet 6-2 is powered off, the moving part of the electromagnet 6-2 is contracted downwards, and is separated from the pin hole block 6-1, and the lower locking mechanism is unlocked.

The operation of the motor 3-1, the electromagnet 6-2 and the cylinder electromagnetic valve is controlled by a circuit control system.

When the door needs to be opened, the switch is pressed, the circuit control system works, the electromagnet 6-2 and the air cylinder electromagnetic valve are in a power-off state, the upper locking mechanism and the lower locking mechanism are in an unlocking state, namely the swing locking plate is separated from the lock catch, the moving piece of the electromagnet is separated from the pin hole block, the motor 3-1 runs, the two nuts 3-4 are driven to move oppositely by the rotation of the bidirectional screw rod 3-2, so that the two slide block assemblies 3-5 are driven to move oppositely on the guide shaft 3-3, when the slide block assemblies 3-5 drive the roller frames 3-8 to move outwards, the upper roller 3-8-1 moves in the arc section of the upper rail 3-6, and the door page makes a combined motion of straight line and outward swing, in the process, the beam frame 2 slides forwards on the base frame 1. When the upper roller 3-8-1 enters the straight line section of the upper rail 3-6, the door leaf moves to the side surface of the vehicle body and slides to the fully opened position, the circuit control system controls the motor to stop running at the moment, and in the process, the lower guide rail 7-1 moves along the lower roller 7-3 along with the door leaf, and the door leaf is stably opened due to the adoption of the upper guide rail and the lower guide rail. The time of motor operation is set in the circuit control system.

When the car door needs to be closed, the switch is pressed, the motor 3-1 operates, the two sliding block assemblies 3-5 move in opposite directions, when the limit switch 10 is touched, the motor stops running, meanwhile, the electromagnetic valve of the air cylinder and the electromagnet are powered on, and the upper locking mechanism and the lower locking mechanism act to lock the car door.

When the emergency is met under the state that the vehicle door is closed and emergency escape is needed, the emergency switch is only needed to be pressed down, the electromagnetic valve of the air cylinder and the electromagnet are powered off and reset, the air cylinder moves upwards, and the swing lock plate is driven to rotate outwards and is separated from the lock catch. Meanwhile, the moving part on the electromagnet moves downwards, the pin hole block is separated, and the upper locking mechanism and the lower locking mechanism are opened, so that two door pages can be manually pulled open, and emergency escape is realized.

Claims

1. The utility model provides a bus door, includes two door leaves (5), fixes bed frame (1) and drive arrangement (3) on door leaf top automobile body position, and drive arrangement (3) have two-way lead screw (3-2), drive motor (3-1) that two-way lead screw (3-2) are rotatory, with two nuts (3-4) of the different spiral to section threaded connection of two-way lead screw (3-2), its characterized in that: the device also comprises a beam frame (2) and an upper locking mechanism (4) which are connected with the base frame (1) in a sliding way in the front-back direction; the driving device (3) further comprises a guide shaft (3-3) and two sliding block assemblies (3-5) which are connected to the guide shaft (3-3) in a sliding manner, the bidirectional screw rod (3-2) and the guide shaft (3-3) are supported by the beam frame (2), the two nuts (3-4) are respectively connected with the two sliding block assemblies (3-5), a portal frame (3-7) and a roller frame (3-8) are fixed at the bottom of each sliding block assembly (3-5), each portal frame (3-7) is connected with the upper end of the back surface of the corresponding portal page (5), two symmetrical upper rails (3-6) are fixed on the base frame (1), one end, facing the rotation direction boundary of the bidirectional screw rod, of each upper rail (3-6) is an inward bent arc section, and upper rollers (3-8-1) on the roller frame (3-8) are arranged in the corresponding upper rails (3-6) in a movable fit manner; the upper locking mechanism (4) comprises an adapter plate (4-1) fixed in the center of the front side of the beam frame (2), an air cylinder (4-2) fixed on the adapter plate (4-1), an inserting block (4-3) driven by the air cylinder (4-2) to lift, two lock catches (4-7) respectively fixed on the two sliding block assemblies (3-5), two swinging lock plates (4-4) respectively corresponding to the two lock catches (4-7), wherein the middle part of each swinging lock plate (4-4) is hinged with the adapter plate (4-1), a limiting step (4-4-1) for limiting the lock catches (4-7) is arranged at the top of each swinging lock plate (4-4), a first bearing (4-5) is arranged at the lower end of each swinging lock plate (4-4), the inserting block (4-3) is inserted between the two first bearings (4-5), inclined planes (4-3) are arranged at the lower parts of two side surfaces in contact with the two first bearings (4-5), and springs are arranged between the upper ends of each swinging lock plate (4-4-6);

a lower locking mechanism (6) is respectively arranged between the bottoms of the two door pages (5) and the vehicle body, each lower locking mechanism (6) is provided with a pin hole block (6-1) fixed at the lower end of the back of the door page (5), and electromagnets (6-2) which are respectively corresponding to the two pin hole blocks (6-1) are arranged on the vehicle body below the door page (5), and a moving part (6-2-1) of each electromagnet (6-2) is in movable fit with the pin hole (6-1-1) of the pin hole block (6-1);

the front of the inserting block (4-3) is provided with a cover plate (4-8), the cover plate (4-8) is connected with the adapter plate (4-1), the center of the cover plate (4-8) is provided with a vertical guide groove (4-8-1), the front side surface of the inserting block (4-3) is provided with two second bearings (4-9), and the two second bearings (4-9) are positioned in the guide groove (4-8-1) and are in movable fit.

2. The bus door of claim 1, wherein: the lower parts of the two door pages (5) are respectively provided with a guide rail groove (5-1), a hinging seat (8) is arranged on the vehicle body part corresponding to the outer side of the lower parts of the door pages, lower guide rail devices (7) are respectively arranged at the lower parts of the back surfaces of the two door pages (5), each lower guide rail device (7) comprises a lower guide rail (7-1) arranged in each guide rail groove (5-1), a lower swing arm (7-2) which is in pin joint with the hinging seat (8), one end, close to the vehicle body, of each lower guide rail (7-1) is arc-shaped, and a lower roller (7-3) which is in movable fit with the lower guide rail (7-1) is arranged on each lower swing arm (7-2).

3. The bus door of claim 1, wherein: a limit switch mounting frame (9) is fixed on the middle part of the guide shaft (3-3), and a limit switch (10) is arranged on the limit switch mounting frame (9) and close to the sliding limit of one of the sliding block assemblies (3-5).

4. The bus door of claim 1, wherein: the sliding block assembly (3-5) comprises a nut seat (3-5-1), a connecting seat (3-5-2) and a sliding block main body (3-5-3) which are sequentially arranged from top to bottom, the nut seat (3-5-1) is hinged with the connecting seat (3-5-2) through a pin shaft (3-5-4), the connecting seat (3-5-2) is fixed at the top of the sliding block main body (3-5-3), the lower half part of the nut (3-4) is embedded into a top groove of the nut seat (3-5-1), and the sliding block main body (3-5-3) is connected onto the guide shaft (3-3) in a sliding mode.