A lightweight passenger car door shock-absorbing and buffer opening and closing structure

Abstract

This utility model discloses a lightweight bus door shock-absorbing and buffering opening and closing structure, relating to the technical field of door opening and closing structures. The utility model includes a vehicle body with a ladder frame installed inside, and an opening and closing part installed on the outside of the vehicle body. The opening and closing part serves to close and open the vehicle body, and also acts as an auxiliary part. Specifically, by setting up the opening and closing part, this utility model avoids excessive rebound or oscillation caused by excessive elasticity of spring one, while utilizing the elasticity of spring two to buffer the residual impact force when the door closes, allowing the door to stop smoothly in the closed position and preventing rigid collisions between the door and the vehicle body that could cause damage. Simultaneously, the deformation of the rubber airbag also provides some buffering against the impact force when the door closes. Through this dual shock absorption and buffering effect, the force generated when the door opens and closes is reduced, increasing the door's service life while providing a more comfortable riding experience and reducing external interference.

Description

Technical Field

[0001] This utility model belongs to the technical field of cabin door opening and closing structure, and in particular relates to a lightweight passenger car cabin door shock absorption and buffer opening and closing structure. Background Technology

[0002] Modern bus passengers have increasingly higher demands for ride comfort. The smoothness and quietness of the cabin door during opening and closing are important indicators of ride comfort. Traditional cabin doors lack effective shock absorption and buffering devices during opening and closing. When the cabin door closes, due to inertia, a large impact force is generated. This impact force can not only damage the structure of the cabin door itself, leading to problems such as accelerated wear of the sealing strip and deformation of the door, but also affect the comfort inside the vehicle, generate more noise, reduce the service life of the door, and may also cause fluctuations in air pressure inside the vehicle, affecting the passenger's riding experience. Therefore, a lightweight bus cabin door shock absorption and buffering opening and closing structure is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a lightweight bus door shock-absorbing and buffering opening and closing structure. By setting up an opening and closing part, specifically, when the door opens and closes, a certain amount of buffering is achieved through the action of a telescopic rod and several springs. Two damping rods can increase the resistance of the telescopic rod's movement, making the movement of the telescopic rod more stable and preventing excessive rebound or oscillation caused by excessive elasticity of springs. At the same time, the elastic force of springs is used to buffer the residual impact force when the door closes, allowing the door to stop smoothly in the closed position and avoiding rigid collisions between the door and the vehicle body that could cause damage. In addition, the deformation of the rubber airbag also provides some buffering for the impact force when the door closes. This solves the problem that traditional doors lack effective shock absorption and buffering devices during opening and closing. When the door closes, due to inertia, a large impact force is generated. This impact force not only damages the door structure itself, leading to accelerated wear of the sealing strip and door deformation, but also affects the comfort of the vehicle interior, generates more noise, reduces the service life of the door, and may also cause fluctuations in air pressure inside the vehicle, affecting the passenger's riding experience.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a lightweight passenger vehicle door shock-absorbing and buffering opening and closing structure, including a vehicle body, a ladder frame installed inside the vehicle body, and further comprising:

[0006] The opening and closing part is installed on the outside of the vehicle body and serves to close and open the vehicle body; and

[0007] An auxiliary part is installed between the opening / closing part and the vehicle body, and the auxiliary part provides a certain auxiliary function for the opening / closing part.

[0008] The opening and closing parts and auxiliary parts are all lightweight, which not only reduces the vehicle's energy consumption, but also improves the vehicle's handling and acceleration performance.

[0009] Furthermore, the opening and closing part includes a drive assembly that provides power output for the opening and closing of the vehicle body;

[0010] Vibration damping components, installed inside the ladder frame, serve to dampen vibrations when the vehicle body is open or closed; and

[0011] A buffer assembly is installed outside the vibration damping assembly, and the buffer assembly continues the function of the vibration damping assembly to further buffer the force.

[0012] Among them, the service life of vehicle structural components is improved through the action of vibration damping components and buffer components.

[0013] Furthermore, the auxiliary part includes a sealing assembly, which is installed between the vehicle body and the drive assembly, and the sealing assembly serves to seal the vehicle body.

[0014] The sealing component serves to seal, insulate, and heat, thereby improving the comfort and safety of the vehicle's interior environment.

[0015] Furthermore, the drive assembly includes a door body connected to the inner wall of the ladder frame. The top output end of the door body is connected to a half gear via a coupling. A gear is meshed with the outer surface of the half gear. A rotating rod is welded inside the gear. Two connecting rods are installed on the outer surface of the rotating rod. A fixed rod is connected to the side of the two connecting rods away from the rotating rod. The front of the vehicle body is provided with a door body, and the back of the door body is connected to the fixed rod.

[0016] The rotating rod passes through the ladder frame and extends to the top. The top of the rotating rod is connected to the vehicle body, and the outer surface of the rotating rod is rotatably connected to the temporal part of the ladder frame.

[0017] Furthermore, the vibration damping component includes a support sleeve, inside which a telescopic rod is connected. The side of the telescopic rod away from the support sleeve is connected to a limit bracket one via a pin. The side of the limit bracket one away from the telescopic rod is welded to the door body. The side of the telescopic rod away from the limit bracket one is in contact with a rubber airbag. A pressure plate is welded to the outer surface of the telescopic rod. Two damping rods are installed on the side of the pressure plate away from the door body.

[0018] Among them, spring 1 is sleeved on the outer surface of both damping rods, and spring 1 is connected to pressure plate on the side near the door body. The rubber airbag is installed inside the support sleeve, and limit bracket 2 is welded inside the ladder frame.

[0019] Furthermore, the buffer assembly includes a limiting ring, the inner ring of which is slidably connected to the outer surface of the support sleeve, a plurality of springs are connected to the side of the limiting ring near the limiting bracket, a fixing ring is connected to the side of the plurality of springs away from the limiting ring, and a plurality of limiting rods are welded to the side of the fixing ring near the limiting ring.

[0020] The fixed ring is connected to the inside of the limiting bracket two via a pin on the side away from the limiting ring. The fixed ring is welded to the supporting sleeve on the side away from the limiting bracket two. Several limiting rods extend into the inside of the spring two. The limiting ring is connected to the damping rod and the spring one on the side away from the fixed ring.

[0021] Furthermore, the sealing assembly includes a mounting frame installed inside the vehicle body, a sealing strip being installed on the side of the mounting frame near the door, and an opening being provided at the bottom of the mounting frame on the side near the door.

[0022] The inner wall of the opening contacts the outer surface of the telescopic rod, and the side of the sealing strip away from the mounting frame contacts the side of the door body closer to the vehicle body.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model, through the setting of an opening and closing part, specifically, when the door opens and closes, firstly, a certain amount of buffering is achieved through the action of the telescopic rod and several springs, and two damping rods can increase the resistance of the telescopic rod's movement, making the movement of the telescopic rod more stable and preventing excessive rebound or oscillation due to excessive elasticity of spring one. At the same time, the elastic force of spring two is used to buffer the residual impact force when the door closes, so that the door can stop smoothly in the closed position, avoiding rigid collision between the door and the vehicle body and causing damage. Meanwhile, the deformation of the rubber airbag also buffers the impact force when the door closes. Through the dual damping and buffering effect, the force generated when the door opens and closes is reduced, the service life of the door is improved, and a more comfortable riding experience is provided, reducing external interference.

[0025] 2. This utility model, by setting an auxiliary part, specifically, when the door is closed, the sealing strip is tightly attached to the door. The sealing strip is made of a material with good elasticity and sealing performance, such as rubber. After the door is closed, it can effectively prevent external dust, moisture, noise and other external factors from entering the vehicle body. At the same time, it can also prevent gas or liquid leakage inside the vehicle body, playing a role in sealing, sound insulation, heat insulation and other functions, improving the comfort and safety of the environment inside the vehicle.

[0026] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the overall structure of the door body of this utility model;

[0030] Figure 3 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0031] Figure 4 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 5 This is a schematic diagram of the cross-sectional structure of the support sleeve of this utility model;

[0033] Figure 6 This utility model Figure 5 A magnified structural diagram of B in the diagram.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 111. Vehicle body; 112. Ladder frame; 2. Opening and closing part; 21. Drive assembly; 211. Door body; 212. Rotating rod; 213. Connecting rod; 214. Fixing rod; 215. Motor; 216. Half gear; 217. Gear; 22. Vibration damping assembly; 221. Support sleeve; 222. Telescopic rod; 223. Pressure plate; 224. Spring 1; 225. Damping rod; 226. Limiting bracket 1; 227. Limiting bracket 2; 228. Rubber airbag; 23. Buffer assembly; 231. Limiting ring; 232. Fixing ring; 233. Spring 2; 234. Limiting rod; 3. Auxiliary part; 31. Sealing assembly; 311. Mounting frame; 312. Sealing strip; 313. Opening. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figures 1-6 As shown, this utility model is a lightweight passenger car door shock absorption and buffer opening and closing structure, including a car body 111, a ladder frame 112 installed inside the car body 111, and also including:

[0038] Opening / closing part 2, installed on the outside of the vehicle body 111, serves to close and open the vehicle body 111; and

[0039] Auxiliary part 3 is installed between opening and closing part 2 and vehicle body 111. Auxiliary part 3 provides a certain auxiliary function for opening and closing part 2.

[0040] The opening / closing part 2 and the auxiliary part 3 are both lightweight, which can not only reduce the vehicle's energy consumption, but also improve the vehicle's handling and acceleration performance.

[0041] The opening and closing part 2 includes a drive assembly 21, which provides power output for the opening and closing of the vehicle body 111;

[0042] Vibration damping component 22, installed inside the ladder frame 112, serves to dampen vibrations when the vehicle body 111 is open or closed; and

[0043] Buffer component 23 is installed outside of vibration damping component 22. Buffer component 23 continues the function of vibration damping component 22 and further buffers the force.

[0044] The vibration damping component 22 and the buffer component 23 enhance the service life of the vehicle's structural components. When the door 211 opens and closes, the telescopic rod 222 and several springs 224 provide initial cushioning. Two damping rods 225 increase the resistance to the movement of the telescopic rod 222, making its movement smoother and preventing excessive rebound or oscillation of the springs 224 due to excessive elasticity. Simultaneously, the elasticity of the springs 233 buffers the remaining impact force when the door 211 closes, allowing the door 211 to stop smoothly in the closed position, preventing rigid collisions between the door 211 and the vehicle body 111 that could cause damage. The deformation of the rubber airbag 228 also provides some cushioning to the impact force when the door 211 closes. Through this double vibration damping effect, the force generated when the door opens and closes is reduced, improving the service life of the door and providing a more comfortable riding experience while reducing external interference.

[0045] The auxiliary part 3 includes a sealing assembly 31, which is installed between the vehicle body 111 and the drive assembly 21. The sealing assembly 31 serves to seal the vehicle body 111.

[0046] The sealing component 31 serves to seal, provide sound insulation, and provide heat insulation, thereby improving the comfort and safety of the interior environment of the vehicle body 111. When the door 211 is closed, the sealing strip 312 fits tightly against the door 211. The sealing strip 312 is made of a material with good elasticity and sealing performance, such as rubber. After the door 211 is closed, it can effectively prevent external dust, moisture, noise, etc. from entering the interior of the vehicle body 111, and at the same time prevent gas or liquid leakage inside the vehicle body 111, thus providing sealing, sound insulation, and heat insulation, thereby improving the comfort and safety of the interior environment of the vehicle body 111.

[0047] The drive assembly 21 includes a door body 211, which is connected to the inner wall of the ladder frame 112. The top output end of the door body 211 is connected to a half gear 216 via a coupling. A gear 217 is meshed on the outer surface of the half gear 216. A rotating rod 212 is welded inside the gear 217. Two connecting rods 213 are installed on the outer surface of the rotating rod 212. A fixed rod 214 is connected to the side of the two connecting rods 213 away from the rotating rod 212. The door body 211 is provided on the front of the vehicle body 111, and the back of the door body 211 is connected to the fixed rod 214.

[0048] The rotating rod 212 passes through the ladder frame 112 and extends to the top. The top of the rotating rod 212 is connected to the vehicle body 111, and the outer surface of the rotating rod 212 is rotatably connected to the temporal part of the ladder frame 112.

[0049] The vibration damping component 22 includes a support sleeve 221, inside which a telescopic rod 222 is connected. The side of the telescopic rod 222 away from the support sleeve 221 is connected to a limit bracket 226 via a pin. The side of the limit bracket 226 away from the telescopic rod 222 is welded to the door body 211. The side of the telescopic rod 222 away from the limit bracket 226 is in contact with a rubber airbag 228. A pressure plate 223 is welded to the outer surface of the telescopic rod 222. Two damping rods 225 are installed on the side of the pressure plate 223 away from the door body 211.

[0050] Among them, spring 224 is sleeved on the outer surface of the two damping rods 225. The side of the two springs 224 near the door body 211 is connected to the pressure plate 223. The rubber airbag 228 is installed inside the support sleeve 221. The limit bracket 227 is welded inside the ladder frame 112.

[0051] The buffer assembly 23 includes a limiting ring 231. The inner ring of the limiting ring 231 is slidably connected to the outer surface of the support sleeve 221. Several springs 233 are connected to the side of the limiting ring 231 near the limiting bracket 227. A fixing ring 232 is connected to the side of the several springs 233 away from the limiting ring 231. Several limiting rods 234 are welded to the side of the fixing ring 232 near the limiting ring 231.

[0052] Among them, the side of the fixed ring 232 away from the limiting ring 231 is connected to the inside of the limiting bracket 227 through a pin, the side of the fixed ring 232 away from the limiting bracket 227 is welded to the support sleeve 221, several limiting rods 234 extend into the inside of the spring 233, and the side of the limiting ring 231 away from the fixed ring 232 is connected to the damping rod 225 and the spring 224.

[0053] The sealing assembly 31 includes a mounting frame 311, which is installed inside the vehicle body 111. A sealing strip 312 is installed on the side of the mounting frame 311 near the door 211, and an opening 313 is provided at the bottom of the side of the mounting frame 311 near the door 211.

[0054] The inner wall of the opening 313 contacts the outer surface of the telescopic rod 222, and the side of the sealing strip 312 away from the mounting frame 311 contacts the side of the door 211 close to the vehicle body 111.

[0055] A specific application of this embodiment is as follows: In use, the starter motor 215 drives the half gear 216 to rotate forward. During the rotation of the half gear 216, it drives the gear 217 to rotate. When the gear 217 rotates, it drives the rotating rod 212 to rotate. When the rotating rod 212 rotates, it drives the fixed rod 214 to swing through the action of the two connecting rods 213. During the swing of the two connecting rods 213, it drives the door 211 to open. Conversely, when the half gear 216 flips, the door 211 closes. During the movement of the door 211, it drives the telescopic rod 222 to move through the limit bracket 226. During the movement of the telescopic rod 222, it moves inside the support sleeve 221. The telescopic rod 222 slides while moving inside the opening 313 as it follows the door 211. Simultaneously, the sliding of the telescopic rod 222 drives the pressure plate 223 to move. During the movement of the telescopic rod 222, it exerts a certain tension or pressure on the spring 224. When the telescopic rod 222 is compressed, it stores energy and utilizes its elasticity to offset some of the impact force, thus buffering and damping the vibration. During the movement of the telescopic rod 222, the damping rod 225 increases the resistance to movement, making the movement of the telescopic rod 222 smoother and preventing excessive rebound or oscillation of the spring 224 due to excessive elasticity, further improving the vibration damping effect.

[0056] When the door 211 is close to the fully closed position during the closing process, the telescopic rod 222 will drive the limiting ring 231 to move into the ladder frame 112 through the pressure plate 223. At this time, the limiting ring 231 will squeeze the second spring 233. The second spring 233 will contract and store force under the limiting effect of the fixed ring 232. At the same time, the second spring 233 will generate a certain rebound force. The elastic force of the second spring 233 is used to buffer the remaining impact force when the door 211 closes, so that the door 211 can stop smoothly in the closed position, avoiding rigid collision between the door 211 and the vehicle body 111 and causing damage. At the same time, the rubber airbag 228 is located inside the support sleeve 221. When the rubber airbag 228 is deformed under force, it will also buffer the impact force when the door 211 closes.

[0057] The mounting frame 311 is installed at the corresponding position on the vehicle body 111, and the sealing strip 312 is installed on the mounting frame 311. When the door 211 is closed, the sealing strip 312 fits tightly against the door 211. The sealing strip 312 is made of a material with good elasticity and sealing performance, such as rubber. After the door 211 is closed, it can effectively prevent external dust, moisture, noise and other external factors from entering the interior of the vehicle body 111. At the same time, it can also prevent gas or liquid leakage inside the vehicle body 111, playing a role in sealing, sound insulation, heat insulation and other functions, improving the comfort and safety of the interior environment of the vehicle body 111.

[0058] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A light-weight passenger vehicle cabin door damping and buffering opening and closing structure, comprising a vehicle body (111), a ladder frame (112) is installed inside the vehicle body (111), characterized in that, Also includes: An opening / closing part (2) is installed on the outside of the vehicle body (111), and the opening / closing part (2) serves to close and open the vehicle body (111); and An auxiliary part (3) is installed between the opening and closing part (2) and the vehicle body (111). The auxiliary part (3) plays a certain auxiliary role for the opening and closing part (2). The opening and closing part (2) and the auxiliary part (3) are both lightweight, which can not only reduce the energy consumption of the vehicle, but also improve the vehicle's handling and acceleration performance.

2. The shock-absorbing and buffering opening and closing structure of a cabin door of a light-weight passenger vehicle according to claim 1, characterized in that, The opening and closing part (2) includes a drive assembly (21), which provides power output for the opening and closing of the vehicle body (111); Vibration damping assembly (22), which is installed inside the ladder frame (112), serves to dampen vibrations when the vehicle body (111) is opened or closed; and A buffer assembly (23) is installed outside the vibration damping assembly (22). The buffer assembly (23) continues the function of the vibration damping assembly (22) and further buffers the force. Among them, the service life of vehicle structural components is improved through the action of vibration damping components (22) and buffer components (23).

3. The shock-absorbing and buffering opening and closing structure of a cabin door of a light-weight passenger vehicle according to claim 2, characterized in that, The auxiliary part (3) includes a sealing assembly (31), which is installed between the vehicle body (111) and the drive assembly (21) and serves to seal the vehicle body (111).

4. The shock-absorbing and buffering opening and closing structure of a cabin door of a light-weight passenger vehicle according to claim 3, characterized in that, The drive assembly (21) includes a door body (211), which is connected to the inner wall of the ladder frame (112). The top output end of the door body (211) is connected to a half gear (216) via a coupling. A gear (217) is meshed on the outer surface of the half gear (216). A rotating rod (212) is welded inside the gear (217). Two connecting rods (213) are installed on the outer surface of the rotating rod (212). A fixed rod (214) is connected to the side of the two connecting rods (213) away from the rotating rod (212). The door body (211) is provided on the front of the vehicle body (111). The back of the door body (211) is connected to the fixed rod (214). The rotating rod (212) passes through the ladder frame (112) and extends to the top. The top of the rotating rod (212) is connected to the vehicle body (111). The outer surface of the rotating rod (212) is rotatably connected to the temporal part of the ladder frame (112).

5. The shock-absorbing and buffering opening and closing structure of a light-weight passenger vehicle cabin door according to claim 4, characterized in that, The vibration damping component (22) includes a support sleeve (221), inside which a telescopic rod (222) is connected. The side of the telescopic rod (222) away from the support sleeve (221) is connected to a limit bracket (226) via a pin. The side of the limit bracket (226) away from the telescopic rod (222) is welded to the door body (211). The side of the telescopic rod (222) away from the limit bracket (226) is in contact with a rubber airbag (228). A pressure plate (223) is welded to the outer surface of the telescopic rod (222). Two damping rods (225) are installed on the side of the pressure plate (223) away from the door body (211). Two outer surfaces of the damping rods (225) are sleeved with springs (224), one side of the two springs (224) close to the door body (211) is connected with the pressing plate (223), the rubber air bag (228) is installed inside the support sleeve (221), and the ladder frame (112) is welded with a limiting support two (227) inside.

6. The shock-absorbing and buffering opening and closing structure of a cabin door of a light-weight passenger vehicle according to claim 5, characterized in that, The buffer assembly (23) comprises a limiting ring (231), the inner circle of the limiting ring (231) is in sliding connection with the outer surface of the support sleeve (221), a plurality of springs (233) are connected on one side of the limiting ring (231) close to the limiting support two (227), a plurality of the springs (233) are connected on one side away from the limiting ring (231), and a fixing ring (232) is welded on one side of the fixing ring (232) close to the limiting ring (231). The fixing ring (232) is connected with the limiting support two (227) inside through a pin shaft on one side away from the limiting ring (231), the fixing ring (232) is welded with the support sleeve (221) on one side away from the limiting support two (227), a plurality of the limiting rods (234) extend into the springs (233) inside, and the limiting ring (231) is connected with the damping rod (225) and the spring (224) on one side away from the fixing ring (232).

7. The shock-absorbing and buffering opening and closing structure of a cabin door of a light-weight passenger vehicle according to claim 6, characterized in that, The sealing assembly (31) comprises a mounting frame (311), the mounting frame (311) is installed inside the vehicle body (111), the sealing rubber strip (312) is installed on one side of the mounting frame (311) close to the door body (211), and the opening (313) is formed in the bottom of one side of the mounting frame (311) close to the door body (211). The inner wall of the opening (313) is in contact with the outer surface of the telescopic rod (222), and one side of the sealing rubber strip (312) away from the mounting frame (311) is in contact with one side of the door body (211) close to the vehicle body (111).

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