Multi-stage buffer suction device of electric suction door

Abstract

The utility model discloses an electric suction door multi-stage buffer suction device which comprises an electric suction door body, a multi-stage buffer mechanism comprises a first-stage buffer assembly, a second-stage buffer assembly, a third-stage buffer assembly and a frame plate, the first-stage buffer assembly is used for making contact with a door frame of a passenger car, the second-stage buffer assembly is used for making contact with a door frame of the passenger car, and the third-stage buffer assembly is used for making contact with a door frame of the passenger car. The first-stage buffering assembly is connected with the second-stage buffering assembly, and the second-stage buffering assembly and the third-stage buffering assembly are connected with the frame plate. According to the multi-stage buffering suction device of the electric suction door, stress is applied at different times, buffering treatment is carried out, the situation of repeated vibration when the electric suction door body is closed is avoided, sufficient resistance can be provided through repeated buffering operation to slow down the closing speed of a vehicle door, and the service life of the vehicle door is prolonged. Therefore, the electric suction door body or the passenger car door frame is prevented from being damaged due to overlarge impact force in unit time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric suction door, concretely relates to a multi-stage buffer closing device of electric suction door. BACKGROUND

[0002] Ordinary passenger cars, high-grade passenger cars and luxury passenger cars often use electric suction doors, which generate a certain closing force through electromagnetic suction principle when the door is closed, so that passengers only need to gently pull the door, and the door will be automatically closed without additional force.

[0003] In order to protect the door body and the door frame, a buffer closing device is often used, which relies on the magnetic force generated by the electromagnetic coil and electromagnetic field to match the mechanical buffer device, so that the door can be smoothly closed.

[0004] The mechanical buffer often uses a spring or a rubber buffer pad to assist the door to slow down smoothly, but the spring will generate a rebound force after being compressed, which may cause the door to vibrate repeatedly when closing, and the carrying capacity and rigidity of the rubber buffer pad are limited, so when the door is heavy or the closing speed is fast, the rubber buffer pad may not be able to provide enough resistance to slow down the closing speed of the door, which may cause a large impact force when the door is closed, causing damage to the door or the door frame. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a multi-stage buffer closing device of electric suction door.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme:

[0007] The electric suction door body, the multi-stage buffer mechanism includes a first buffer assembly, a second buffer assembly, a third buffer assembly and a frame plate, the first buffer assembly is used to contact with the door frame of the passenger car, the first buffer assembly is connected with the second buffer assembly, the second buffer assembly and the third buffer assembly are connected with the frame plate, at least one lateral buffer piece is arranged in the second buffer piece, the lateral buffer piece is used to disperse the impact force received by the electric suction door body, the third buffer assembly is arranged in the second buffer assembly, and the third buffer assembly is used to buffer the impact force received by the middle part of the electric suction door body.

[0008] Preferably, the second buffer piece further comprises a buffer frame slidingly arranged on the frame plate;

[0009] The lateral buffer piece comprises an elastic flap, a mounting seat, a push rod and a rotating seat, the frame plate is provided with a buffer groove, the elastic flap is fixedly connected in the buffer groove, the rotating seat is fixedly connected with the elastic flap, one end of the push rod is rotatably connected with the rotating seat, and the other end of the push rod is rotatably connected with the mounting seat, and the mounting seat is fixedly connected with the buffer frame.

[0010] It can be understood that the electric suction door body includes a door window fixedly connected inside the electric suction door body, and a door handle for pulling the electric suction door body to move, and one side of the door handle is fixedly connected with a door lock, and the door lock is used for fixing the connection state of the electric suction door body and the passenger car door frame, which is the basic function configuration of the electric suction door, and the specific structure of the door handle and the door lock is the same as that used in the prior art passenger car, and will not be described in detail here.

[0011] Preferably, a rotating shaft is rotatably connected in the rotating seat, the push rod is rotatably connected with the rotating shaft, and two limiting openings are arranged in the buffer groove and are slidably connected with the rotating shaft.

[0012] Preferably, the first-stage buffer assembly includes an elastic pad, and the elastic pad is fixedly connected to the side of the buffer frame for contacting the door frame of the passenger car.

[0013] Preferably, a sliding opening is arranged on the frame plate for the buffer frame to slide, and an anti-collision strip is fixedly connected in the sliding opening and arranged in the moving path of the buffer frame.

[0014] Preferably, the third-stage buffer assembly includes a plurality of elastic balls fixedly connected to the middle part of the frame plate, and the plurality of elastic balls are arranged in a linear equidistant array.

[0015] Compared with the prior art, the advantages of the electric suction door multi-stage buffer suction device include:

[0016] (1) The electric suction door multi-stage buffer suction device provided by the utility model is combined with the first-stage buffer assembly, the second-stage buffer assembly and the third-stage buffer assembly, different forces are borne at different times and buffer processing is performed, the repeated vibration when the electric suction door body is closed is avoided, and the operation of multiple buffering can provide sufficient resistance to slow down the speed of closing the door, so that the electric suction door body or the passenger car door frame is prevented from being damaged due to excessive impact force in unit time.

[0017] (2) The electric suction door multi-stage buffer suction device provided by the utility model can change the force direction to multiple different directions through the lateral buffer piece when the electric suction door body is impacted, so that the situation of force concentration of the electric suction door body is avoided, the impact force received by the electric suction door body is dispersed, and the situation of insufficient buffer resistance is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the application, and other drawings can be obtained by those skilled in the art without creating labor.

[0019] Figure 1 It is the whole schematic view of a multi-stage buffer engaging device of the electric suction door in the utility model;

[0020] Figure 2 It is the structural schematic view of the multi-stage buffer mechanism in the utility model;

[0021] Figure 3 It is the structural sectional view of the multi-stage buffer mechanism in the utility model;

[0022] Figure 4 It is Figure 3 The structure enlarged view of A in the utility model.

[0023] Reference signs:

[0024] 1, electric suction door main body; 2, door handle; 3, door lock; 4, door and window; 5, multi-stage buffer mechanism; 51, frame plate; 52, buffer frame; 53, elastic pad; 54, elastic ball; 55, anti-collision strip; 56, elastic roll piece; 57, mounting seat; 58, push rod; 59, rotating seat. Specific implementation

[0025] In view of the deficiencies in the prior art, the present application has been proposed after long-term research and a large number of practices. The technical solution, its implementation process and principles will be further explained in the following with reference to the drawings in the embodiments of the present application and specific implementation cases.

[0026] Example 1

[0027] Please refer to Figure 1 and Figure 2 A multi-stage buffer engaging device of the electric suction door includes an electric suction door main body 1, a multi-stage buffer mechanism 5 includes a first-stage buffer assembly, a second-stage buffer assembly, a third-stage buffer assembly and a frame plate 51, the first-stage buffer assembly is used to contact with the door frame of the passenger car, the first-stage buffer assembly is connected with the second-stage buffer assembly, the second-stage buffer assembly and the third-stage buffer assembly are connected with the frame plate 51, at least one lateral buffer piece is arranged inside the second-stage buffer piece, the lateral buffer piece is used to disperse the impact force received by the electric suction door main body 1, the third-stage buffer assembly is arranged inside the second-stage buffer assembly, and the third-stage buffer assembly is used to buffer the impact force received by the middle part of the electric suction door main body 1.

[0028] It can be understood that, by using the first-stage buffer assembly, the second-stage buffer assembly and the third-stage buffer assembly in combination, the impact force is received and buffered at different times, the repeated vibration when closing the electric suction door main body 1 is avoided, and the operation of multiple buffering can provide sufficient resistance to slow down the speed of closing the door, thereby avoiding the damage of the electric suction door main body 1 or the door frame of the passenger car caused by the excessive impact force in unit time

[0029] Please refer toFigure 1 and Figure 2 The secondary buffer further comprises a buffer frame 52 slidingly arranged on the frame plate 51.

[0030] The lateral buffer assembly comprises an elastic roll 56, a mounting seat 57, a push rod 58 and a rotating seat 59. The frame plate 51 is provided with a buffer groove, the elastic roll 56 is fixedly connected in the buffer groove, the rotating seat 59 is fixedly connected with the elastic roll 56, one end of the push rod 58 is rotationally connected with the rotating seat 59, the other end of the push rod 58 is rotationally connected with the mounting seat 57, and the mounting seat 57 is fixedly connected with the buffer frame 52.

[0031] When the lateral buffer assembly is subjected to the pressure of the buffer frame 52, the rotating seat 59 is pushed by the push rod 58 to press the elastic roll 56, the force borne by the buffer frame 52 is buffered by the elasticity of the elastic roll 56, the impact force borne by the buffer frame 52 is buffered in multiple directions, and the situation of force concentration is avoided.

[0032] It can be understood that the electric suction door body 1 comprises the door window 4 fixedly connected in the inside thereof, and the door handle 2 for pulling the electric suction door body 1 to move, and the door handle 2 is fixedly connected with the door lock 3 on one side, and the door lock 3 is used for fixing the connection state of the electric suction door body 1 with the bus door frame, which is the basic function configuration of the electric suction door, and the specific structures of the door handle 2 and the door lock 3 are the same as those used in the prior art of the bus, and will not be described in detail here.

[0033] And other structures used in cooperation with the electric suction door body 1 inside the bus include:

[0034] The electromagnetic coil is generally mounted on the door frame, which is the key component for the operation of the electric suction door body 1; the sensor is used for detecting the state of the door, such as whether it is opened, closed to what extent, etc.

[0035] The sensor transmits the detected information to the control unit so that the control unit can give corresponding instructions;

[0036] The control unit receives the signal of the sensor and controls the operation of the electromagnetic coil and the motor according to the preset program instructions;

[0037] The motor is started when the door is about to be closed to the position, and drives the suction device on the door through a series of gear and connecting rod mechanisms, so that the door is completely locked;

[0038] When the electric suction door body 1 is opened, there is no current passing through the electromagnetic coil, and no electromagnetic field is formed. At this time, the electric suction door body 1 can be freely opened;

[0039] When the electric suction door body 1 is pushed to the closing position, the sensor detects the movement of the electric suction door body 1 and transmits the signal to the control unit. The control unit instructs the electromagnetic coil to be electrified to form an electromagnetic field;

[0040] When the electric suction door body 1 is closed to be close to the door frame, for example, about 6mm from the door lock 3, the electromagnetic field generates an attractive force with the door, so that the door is automatically attracted to the door frame. In this process, the magnetic force plays a major role in buffering and attracting. On the basis of the magnetic attraction, the motor is started and the door is completely locked through a series of gear and linkage mechanisms, ensuring the safety and stability of the door. The gear and linkage mechanisms mentioned above are conventional transmission structures in the art, which will not be described in detail here.

[0041] The multi-stage buffer mechanism 5 in the utility model buffers the impact force between the electric suction door body 1 and the passenger car door frame during the closing operation of the electric suction door body 1 in cooperation with the attractive force generated by the electromagnetic field and the door.

[0042] Please refer to Figure 4 , the rotating shaft is rotatably connected in the rotating seat 59, the push rod 58 is rotatably connected with the rotating shaft, two limiting ports are formed in the buffer groove, the rotating shaft is slidably connected with the limiting port, the rotating shaft is limited to slide in the limiting port, the freedom of the rotating seat 59 is limited, so as to further control the direction of the force received by the elastic sheet 56 when it deforms, which is helpful to the use of the elastic sheet 56.

[0043] It should be noted that the elastic sheet 56 has a thickness, and the elastic sheet 56 can provide sufficient resistance for the movement of the push rod 58.

[0044] Please refer to Figure 1 , Figure 2 and Figure 4 , the first-stage buffer assembly includes the elastic pad 53, which is fixedly connected to the side surface of the buffer frame 52 for contacting with the door frame of the passenger car. The elastic pad 53 is first contacted with the door frame of the passenger car, and the elastic pad 53 itself is preliminarily buffered.

[0045] Please refer to Figure 4 , the sliding port is formed in the frame plate 51 for the sliding of the buffer frame 52, and the anti-collision strip 55 is fixedly connected in the sliding port. When the buffer frame 52 is moved to the limit position under the impact force, the anti-collision strip 55 will be contacted with the buffer frame 52, so as to avoid the collision between the buffer frame 52 and the frame plate 51, thereby reducing the spread of noise.

[0046] Please refer to Figure 3 , the third-stage buffer assembly includes a plurality of elastic balls 54 fixedly connected to the middle part of the frame plate 51. The plurality of elastic balls 54 are arranged in a linear equidistant array. By arranging the elastic balls 54 in the middle part of the frame plate 51, the force received by the middle part of the buffer frame 52 can be buffered after the second-stage buffer assembly is stressed, thereby enhancing the buffering strength of the middle part of the buffer frame 52 to the impact force.

[0047] Working principle:

[0048] When the electric suction door body 1 is closed, the elastic pad 53 will first contact the door frame of the passenger car, and the elastic pad 53 will be preliminarily buffered by the elastic force of the elastic pad 53 itself. Then, the buffering frame 52 will be driven to rotate the push rod 58 under pressure, the rotating seat 59 will be pushed by the push rod 58 to extrude the elastic roll piece 56, the force suffered by the buffering frame 52 will be buffered by the elastic buffering of the elastic roll piece 56, the impact force suffered by the buffering frame 52 will be buffered in multiple directions to avoid the situation of force concentration. When the buffering frame 52 moves to a state capable of contacting the elastic ball 54, the continuous movement of the buffering frame 52 will extrude the elastic ball 54. By arranging the elastic ball 54 in the middle of the frame plate 51, the force suffered by the middle of the buffering frame 52 can be buffered after the force is suffered by the two-stage buffering assembly, the buffering strength of the middle area of the buffering frame 52 to the impact force is enhanced. In this way, the impact force generated when the multi-stage buffering electric suction door body 1 is suctioned to the door frame of the passenger car is operated, the propagation strength of the noise is reduced.

[0049] It should be understood that the above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it. The specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled in the art of the present application, without departing from the concept of the present application, some simple deductions or substitutions can be made, and any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A multi-stage cushioning latching device for a power operated door, comprising a power operated door body (1), characterized in that, Multi-stage buffer mechanism (5) including a first buffer assembly, second buffer assembly, third buffer assembly and frame plate (51), the first buffer assembly is used for contacting with the door frame of the passenger car, the first buffer assembly is connected with the second buffer assembly, the second buffer assembly and third buffer assembly are connected with the frame plate (51), at least one lateral buffer is arranged in the second buffer, the lateral buffer is used for dispersing the impact force received by the electric suction door body (1), the third buffer assembly is arranged in the second buffer assembly, and the third buffer assembly is used for buffering the impact force received by the middle part of the electric suction door body (1).

2. The multi-stage cushioning snubbing device of an electrically attracted door according to claim 1, characterized in that: The second buffer further comprises a buffer frame (52) slidingly arranged on the frame plate (51). The lateral buffer comprises an elastic roll (56), a mounting seat (57), a push rod (58) and a rotating seat (59), the frame plate (51) is provided with a buffer groove, the elastic roll (56) is fixedly connected in the buffer groove, the rotating seat (59) is fixedly connected with the elastic roll (56), one end of the push rod (58) is rotatably connected with the rotating seat (59), the other end of the push rod (58) is rotatably connected with the mounting seat (57), and the mounting seat (57) is fixedly connected with the buffer frame (52).

3. The multi-stage cushioning snubbing device of claim 2, wherein: The rotating seat (59) is rotatably connected with a rotating shaft, the push rod (58) is rotatably connected with the rotating shaft, and the buffer groove is provided with two limiting openings, and the rotating shaft is slidably connected with the limiting openings.

4. The multi-stage cushioning snubbing device of claim 2, wherein: The first buffer assembly comprises an elastic pad (53), and the elastic pad (53) is fixedly connected to the side surface of the buffer frame (52) for contacting with the door frame of the passenger car.

5. The multi-stage cushioning snubbing device of claim 2, wherein: The frame plate (51) is provided with a sliding opening for sliding of the buffer frame (52), and the sliding opening is fixedly connected with an anti-collision strip (55), and the anti-collision strip (55) is arranged in the moving path of the buffer frame (52).

6. The multi-stage cushioning snubbing device of an electrically attracted door according to claim 1, characterized in that: The third buffer assembly comprises a plurality of elastic balls (54) fixedly connected to the middle part of the frame plate (51), and the plurality of elastic balls (54) are arranged in linear equidistant array.

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