Self-locking structure for closing electric straight swing door

Abstract

The utility model discloses a door closing self-locking structure of an electric straight swing door. The door closing self-locking structure comprises a door pump mechanism, an opening and closing motor, a transmission rod, a door shaft assembly and a lock catch assembly. The door pump mechanism comprises a base plate and an opening and closing gear located in the middle of the base plate, sliding rails are arranged on the two sides of the base plate, a sliding plate is arranged between the sliding rails, an opening and closing motor is fixedly connected to the sliding plate, and a driving gear of the opening and closing motor is meshed with the opening and closing gear. The opening and closing gear is connected with the door shaft assembly through a transmission rod. The lock catch assembly is connected with the sliding plate; a self-locking column is arranged on the opening and closing gear, and a buckle corresponding to the self-locking column is arranged at the end, close to the opening and closing gear, of the base plate. When the door is closed, the connecting columns connected with the transmission rod are arranged in a staggered mode, the transmission rod can drive the opening and closing gear to rotate clockwise when the door is opened at the moment, and due to the fact that the self-locking column abuts against the buckle, it is guaranteed that the opening and closing gear cannot rotate, and it is guaranteed that enough retention force is provided for closing the door body.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of straight swing door, and particularly relates to a self-locking structure for closing an electric straight swing door. BACKGROUND

[0002] A passenger car is an important traffic tool in today's society, and a passenger door is a main passage for passengers to get on and off the car. In an emergency, the passenger door must ensure that the passengers can quickly open and escape. At present, the passenger door of a bus, a tourist car or a passenger car is mostly a pneumatic door, and opening and closing of the door is realized by giving an electric signal to an electromagnetic valve through a rocker switch at a driver position to make the electromagnetic valve reverse to realize opening and closing of the door. When the door is closed, the air cylinder still keeps in the state of being pushed out or retracted, so that the door can always be kept in a closed state. However, with the improvement of living standards, people have higher and higher requirements for the comfort and experience of the passenger car, and defects such as loud noise and unstable operation of the pneumatic door are increasingly concerned. The electric passenger door is widely used because of its stable operation and small noise. The electric passenger door is mainly driven by an electric motor and is driven to open and close through a mechanical structure.

[0003] For example, a passenger car emergency unlocking handle device provided in patent CN205875981U needs to manually rotate an in-car and out-car emergency valve in an emergency, and the door can be opened only by making the motor driving device and the mechanical transmission device disengage through a steel wire rope. However, when the opening and closing action is completed, the motor is powered off. At this time, how to maintain the closed state of the door body and how to ensure that the door body has sufficient holding force become a problem. How to quickly open the passenger door to escape in an emergency becomes a problem. CONTENT OF THE UTILITY MODEL

[0004] The application provides a self-locking structure for closing an electric straight swing door to solve the above technical problems.

[0005] To solve the above technical problems, the application adopts a technical scheme: a self-locking structure for closing an electric straight swing door, comprising a door pump mechanism, an opening and closing motor, a transmission rod, a door shaft assembly and a lock catch assembly. The door pump mechanism comprises a base plate and an opening and closing gear located at the middle part of the base plate. The base plate is provided with sliding rails on both sides, and a sliding plate is arranged between the sliding rails. The opening and closing motor is fixedly connected to the sliding plate, and a driving gear of the opening and closing motor is engaged with the opening and closing gear. The opening and closing gear is connected to the door shaft assembly through the transmission rod. The lock catch assembly is connected to the sliding plate. The opening and closing gear is provided with a self-locking column, and the base plate is provided with a buckle corresponding to the self-locking column at one end close to the opening and closing gear.

[0006] Further, the buckle comprises a strip plate and a hook portion. The strip plate is connected to the sliding plate. The hook portion is in the shape of a right triangle. The right angle side of the hook portion is fixedly connected to one side of the strip plate close to the opening and closing gear, and the oblique side of the hook portion faces the base plate.

[0007] Further, the surfaces on both sides of the opening and closing gear are provided with shaft seats, and the shaft seats are provided with first connecting columns movably connected with the transmission rods, wherein, when the self-locking column abuts against the buckle, the two first connecting columns are not located on the same horizontal line; wherein, the first connecting column close to the base plate side is deviated to the buckle side.

[0008] Further, the door shaft assembly comprises a door shaft and a first rotating arm, one end of the first rotating arm is fixedly connected to the upper end of the door shaft, and the lower end of the door shaft is connected with the vehicle door; the other end of the first rotating arm is provided with a second connecting column, and the second connecting column is connected with the first connecting column through a transmission rod.

[0009] Further, the transmission rod is provided with a sleeve ring on both sides for sleeving the first connecting column and the second connecting column.

[0010] Further, the lock buckle assembly comprises an L-shaped handle plate, an intermediate plate, a second rotating arm and a connecting rod, one end of the L-shaped handle plate is fixedly connected with a pull plate perpendicular to the base plate, and the other end of the L-shaped handle plate is pivotally connected with the intermediate plate through a first rotating shaft; the second rotating arm is movably connected with the base plate through a second rotating shaft; the connecting rod is movably connected with the sliding plate through a third rotating shaft; the intermediate plate, the second rotating arm and the connecting rod are all pivotally connected through a fourth rotating shaft, and the hole plate fixedly connected with the first rotating shaft is connected with a steel wire rope.

[0011] Further, one side of the intermediate plate away from the opening and closing gear is provided with a convex plate, and a first shaft column is fixedly arranged on the convex plate; one side of the L-shaped handle plate connected with the intermediate plate is provided with a second shaft column; the first shaft column and the second shaft column are connected through a first tension spring.

[0012] Further, one side of the base plate close to the lock buckle assembly is provided with a third shaft column, and one side of the sliding plate away from the opening and closing gear is provided with a fourth shaft column; the third shaft column and the fourth shaft column are connected through a second tension spring.

[0013] The beneficial effects of the present application are: the connecting columns connected with the transmission rod are arranged in a staggered manner when closing the door, at this time, the transmission rod will drive the opening and closing gear to rotate clockwise when opening the door, and since the self-locking column abuts against the buckle, it is ensured that the opening and closing gear cannot rotate, so as to ensure that the closed door body has sufficient holding force. The intermediate plate and the L-shaped handle plate are fixed by the tension of the first tension spring, which plays a role in overcoming the unlocking force, preventing accidental unlocking, and making the mechanism run more reliably. When unlocking is needed, the steel wire rope can be pulled by the air cylinder or the L-shaped handle plate can be manually pulled, so that the connection point of the L-shaped handle plate and the intermediate plate moves to the other side of the first tension spring, thereby driving the fourth rotating shaft to move, the rotating rod pulls the sliding plate to move, and it is ensured that the driving gear is separated from the opening and closing gear. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a top view structure schematic diagram of an embodiment of the electric straight swing door door closing self-locking structure of the present application;

[0015] Figure 2is a top view structural schematic diagram of another embodiment of the electric straight swing door closing self-locking structure of the application;

[0016] Figure 3 is Figure 1 is a structural schematic diagram of an embodiment of the door shaft assembly in

[0017] Figure 4 is Figure 1 is a structural schematic diagram of another embodiment of the door shaft assembly in

[0018] Figure 5 is Figure 1 is a structural schematic diagram of an embodiment of the lock catch assembly in

[0019] Figure 6 is Figure 1 is a structural schematic diagram of another embodiment of the lock catch assembly in DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described in combination with the drawings in the embodiments of the application.

[0021] Referring to Figures 1-2 , Figure 1 is a structural schematic diagram of an embodiment of the electric straight swing door closing self-locking structure of the application. The structure comprises a door pump mechanism 1, an opening and closing motor 2, a transmission rod 3, a door shaft assembly 4 and a lock catch assembly 5; the door pump mechanism 1 comprises a base plate 11 and an opening and closing gear 6 located in the middle of the base plate 11, the base plate 11 is provided with slide rails 13 on both sides, the slide rails 13 are provided with a sliding plate 14 between, the opening and closing motor 2 is fixedly connected to the sliding plate 14, and the driving gear 21 of the opening and closing motor 2 is engaged with the opening and closing gear 6; the opening and closing gear 6 is connected with the door shaft assembly 4 through the transmission rod 3; the lock catch assembly 5 is connected with the sliding plate 14; wherein the opening and closing gear 6 is provided with a self-locking column 12, and one end of the base plate 11 close to the opening and closing gear 6 is provided with a buckle 7 corresponding to the self-locking column 12. The driving gear 21 of the opening and closing motor 2 in the above design is engaged with the opening and closing gear 6, thereby controlling the rotation of the opening and closing gear 6, so that the transmission rods 3 on both sides move back and forth to drive the rotation of the door shaft assembly 4, and the opening and closing of the straight swing door are completed. When the self-locking column 12 is clamped with the buckle 7, the closing state can be maintained, and the door body is ensured to have sufficient holding force.

[0022] The buckle 7 comprises a strip plate 71 and a hook portion 72, the strip plate 71 is connected with the sliding plate 14; the hook portion 72 is a right triangle, the right angle side of the hook portion 72 is fixedly connected to one side of the strip plate 71 close to the opening and closing gear 6, and the oblique side of the hook portion 72 faces the base plate 11. The hook portion 72 in the above design abuts against the buckle 7 when closing the door; at the same time, when unlocking, the base plate 11 slides outward, and the oblique side of the hook portion 72 can press down the self-locking column 12 and then separate from the self-locking column 12.

[0023] The two sides of the opening and closing gear 6 are provided with shaft seats 62, and the two sides of the shaft seat 62 are provided with first connecting columns 61 which are movably connected with the transmission rod 3. When the self-locking column 12 abuts against the buckle 7, the two first connecting columns 61 are not located on the same horizontal line. The first connecting column 61 close to the base plate 11 is deviated to the side of the buckle 7. In the above design, the first connecting column 61 is not located on the same horizontal line when the door is closed, so that when someone pushes the door, the door shaft assembly 4 moves to the middle through the transmission rod 3, and the transmission rod 3 moves to the middle. In this embodiment, the buckle 7 is located on the clockwise side of the left first connecting column 61, and the transmission rod 3 pushes the opening and closing gear 6 to rotate clockwise. Since one of the first connecting columns 61 is deviated to the side of the buckle 7, the self-locking column 12 abuts against the buckle 7 when the opening and closing gear 6 rotates clockwise, thereby preventing the closing gear from rotating clockwise, so that the door shaft assembly 4 cannot rotate, and the door cannot be opened. In other embodiments, the buckle 7 can also be located on the counterclockwise side of the left first connecting column 61, and the self-locking column 12 abuts against the buckle 7 when the opening and closing gear 6 rotates counterclockwise, thereby preventing the closing gear from rotating clockwise.

[0024] Referring to Figures 3-4 , the door shaft assembly 4 includes a door shaft 41 and a first rotating arm 42, one end of the first rotating arm 42 is fixedly connected to the upper end of the door shaft 41, and the lower end of the door shaft 41 is connected to the door. The other end of the first rotating arm 42 is provided with a second connecting column 43, and the second connecting column 43 is connected with the first connecting column 61 through the transmission rod 3. In the above design, the movement of the transmission rod 3 drives the rotation of the first rotating arm 42, thereby controlling the rotation of the door shaft 41 to control the opening and closing of the door.

[0025] The transmission rod 3 is provided with a sleeve ring 31 on both sides for sleeving the first connecting column 61 and the second connecting column 43. In the above design, the sleeve ring 31 is movably sleeved on the connecting column, so that when the transmission rod 3 moves back and forth, the sleeve ring 31 can rotate on the connecting column.

[0026] Referring to Figures 5-6 , the lock catch assembly 5 includes an L-shaped handle plate 51, an intermediate plate 52, a second rotating arm 53 and a connecting rod 54. One end of the L-shaped handle plate 51 is provided with a pull plate which is perpendicular to the base plate 11, and the other end of the L-shaped handle plate 51 is pivotally connected with the intermediate plate 52 through a first rotating shaft 55. The second rotating arm 53 is movably connected with the base plate 11 through a second rotating shaft 56. The connecting rod 54 is movably connected with the sliding plate 14 through a third rotating shaft 57. The intermediate plate 52, the second rotating arm 53 and the connecting rod 54 are all pivotally connected through a fourth rotating shaft 58. A hole plate 551 fixedly connected with the first rotating shaft 55 is connected with a steel wire rope 552. In the above design, the L-shaped handle plate 51 can be manually pulled to move the first rotating shaft 55, thereby driving the fourth rotating shaft 58 to move inward, so that the connecting rod 54 pulls the sliding plate 14 to separate the driving gear 21 and the opening and closing gear 6.

[0027] The middle plate 52 is provided with a convex plate 521 on the side far away from the gear 6, and the first shaft column 522 is fixed on the convex plate 521; the L-shaped handle plate 51 is provided with the second shaft column 523 on the side connected with the middle plate 52; and the first shaft column 522 and the second shaft column 523 are connected through the first tension spring 524. In the above design, when the gear 21 drives the gear 6 to engage, the first rotating shaft 55 is located on the side close to the gear in the first tension spring 524, and the tension of the first tension spring 524 can prevent the L-shaped handle plate 51 and the middle plate 52 from deforming, so as to overcome the unlocking force, prevent the unlocking, and make the mechanism operate more reliably.

[0028] The base plate 11 is provided with the third shaft column 16 on the side close to the lock catch assembly 5, and the sliding plate 14 is provided with the fourth shaft column 17 on the side far away from the gear 6; the third shaft column 16 and the fourth shaft column 17 are connected through the second tension spring 18. In the above design, when the unlocking is needed, the second tension spring 18 can provide the unlocking tension to pull the sliding plate 14, so as to quickly separate the gear 21 from the gear 6.

[0029] Specific working principle, when the vehicle door normally works ( Figure 1 ), the sliding plate 14 is close to the gear 6, the gear 21 is engaged with the gear 6, so as to control the rotation of the gear 6, so that the vehicle door is normally opened and closed through the opening and closing motor 2. At this time, the steel wire rope can be connected with the external cylinder and the like, the tension of the first tension spring 524 can fix the L-shaped handle plate 51 and the middle plate 52, so as to overcome the unlocking force. When the vehicle door is opened, the opening and closing motor 2 drives the motor gear and the gear 6 to rotate counterclockwise, and the transmission rod 3 on both sides is moved to the center, the first rotating arm 42 is rotated to drive the door shaft 41 to rotate, so that the vehicle door is opened. When the vehicle door is closed, the opening and closing motor 2 drives the motor gear to rotate clockwise, and the transmission rod 3 on both sides is pushed to both sides, the first rotating arm 42 is rotated to drive the door shaft 41 to rotate, so that the vehicle door is closed.

[0030] When the vehicle runs, the vehicle door is closed, the buckle 7 is located on the clockwise side of the first connecting column 61 on the left side, the transmission rod 3 pushes the gear 6 to rotate clockwise, and because one of the first connecting columns 61 is deviated to the side of the buckle 7, the self-locking column 12 abuts against the buckle 7 when the gear 6 rotates clockwise, so as to hinder the gear 6 from rotating clockwise, so that the door shaft assembly 4 cannot rotate, and the vehicle door cannot be opened.

[0031] When an emergency occurs ( Figure 2), the person in the vehicle can pull the L-shaped handle plate 51 to move the first rotating shaft 55 to the side of the first tension spring 524 away from the gear, the tension of the first tension spring 524 can further pull the L-shaped handle plate 51 and the middle plate 52 to deform, and the tension of the second tension spring 18 can pull the sliding plate 14 to move, so that the driving gear 21 and the opening and closing gear 6 are out of engagement. When the sliding plate 14 moves outward, the bevel side of the hook portion 72 can press the self-locking column 12 for a distance and then separate from the self-locking column 12, Figure 4 At this time, when the door is pushed, the opening and closing gear 6 has no rotation resistance, and the door is smoothly opened.

[0032] When the door returns to normal, first close the door, pull the L-shaped handle plate 51 to move the first rotating shaft 55 to the side of the first tension spring 524 close to the gear, so that the L-shaped handle plate 51 and the middle plate 52 return to the normal position, the sliding plate 14 moves back, and the driving gear 21 and the opening and closing gear 6 return to the engagement state.

[0033] The application sets the connecting column of the connecting transmission rod 3 to be misaligned when closing the door. When opening the door, the transmission rod 3 drives the opening and closing gear 6 to rotate clockwise, and because the self-locking column 12 abuts against the buckle 7, the opening and closing gear 6 cannot rotate to ensure that the closed door body has sufficient holding force. The middle plate 52 and the L-shaped handle plate 51 are fixed by the tension of the first tension spring 524 to overcome the unlocking force and prevent accidental unlocking, so that the mechanism operates more reliably. When unlocking is needed, the L-shaped handle plate 51 can be pulled by the cylinder or manually pulled to move the connecting point of the L-shaped handle plate 51 and the middle plate 52 to the other side of the first tension spring 524, so as to drive the fourth rotating shaft 58 to move, the rotating rod pulls the sliding plate 14 to move, and the driving gear 21 and the opening and closing gear 6 are separated.

[0034] The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields is also included in the patent protection scope of the application.

Claims

1. A self-locking structure for closing an electric swing door, characterized in that: include A door pump mechanism, an opening and closing motor, a transmission rod, a door shaft assembly and a lock assembly; the door pump mechanism includes a base plate and an opening and closing gear located in the middle of the base plate, slide rails are provided on both sides of the base plate, a sliding plate is provided between the slide rails, the opening and closing motor is fixed to the sliding plate, and the driving gear of the opening and closing motor is engaged with the opening and closing gear; the opening and closing gear is connected to the door shaft assembly through the transmission rod; the lock assembly is connected to the sliding plate; wherein, a self-locking column is provided on the opening and closing gear, and a snap corresponding to the self-locking column is provided at one end of the base plate close to the opening and closing gear.

2. The self-locking structure for closing an electric swing door according to claim 1, characterized in that: The buckle includes a strip and a hook, the strip is connected to the sliding plate; the hook is a right-angled triangle, the right-angled side of the hook is fixed to the side of the strip close to the opening and closing gear, and the hypotenuse side of the hook faces the base plate.

3. The self-locking structure for closing an electric swing door according to claim 2, characterized in that: Axle seats are provided on both side surfaces of the opening and closing gear, and first connecting columns movably connected to the transmission rod are provided on both sides of the axle seats, wherein when the self-locking column abuts against the buckle, the two first connecting columns are not located on the same horizontal line; wherein, the first connecting column close to the side of the base plate is biased toward the side of the buckle.

4. The self-locking structure for closing an electric straight swing door according to claim 3, characterized in that: The door hinge assembly includes a door hinge and a first rotating arm, one end of the first rotating arm is fixed to the upper end of the door hinge, and the lower end of the door hinge is connected to the vehicle door; the other end of the first rotating arm is provided with a second connecting column, and the second connecting column is connected to the first connecting column through the transmission rod.

5. The self-locking structure for closing an electric swing door according to claim 4, characterized in that: The transmission rod is provided with collars on both sides for sleeve-connecting the first connecting column and the second connecting column.

6. The self-locking structure for closing an electric straight swing door according to claim 1, characterized in that: The locking assembly includes an L-shaped handle plate, an intermediate plate, a second rotating arm and a connecting rod. The side wall of one end of the L-shaped handle plate is fixedly connected to a pull plate perpendicular to the base plate, and the other end of the L-shaped handle plate is pivotally connected to the intermediate plate through a first rotating shaft; the second rotating arm and the base plate are movably connected through a second rotating shaft; the connecting rod and the sliding plate are movably connected through a third rotating shaft; the intermediate plate, the second rotating arm and the connecting rod are all pivotally connected through a fourth rotating shaft, and the orifice plate fixed to the first rotating shaft is connected to a steel wire rope.

7. The self-locking structure for closing an electric straight swing door according to claim 6, characterized in that: A convex plate is provided on the side of the middle plate away from the opening and closing gear, and a first shaft column is fixed on the convex plate; a second shaft column is provided on the side of the L-shaped handle plate connected to the middle plate; the first shaft column and the second shaft column are connected by a first tension spring.

8. The self-locking structure for closing an electric straight swing door according to claim 7, characterized in that: A third shaft column is provided on a side of the base plate close to the lock assembly, and a fourth shaft column is provided on a side of the sliding plate away from the opening and closing gear; the third shaft column and the fourth shaft column are connected by a second tension spring.

Images