A bus inward swing door eccentric shaft assembly

Abstract

An eccentric shaft assembly for a passenger bus inward-swinging door includes an eccentric base. An eccentric shaft bracket is connected to the bottom of the eccentric base, and a door panel is connected via the eccentric shaft bracket. An eccentric hole is provided on the eccentric base, and a roller support rod is disposed within the eccentric hole. An eccentric shaft assembly roller is fitted to the end of the roller support rod, and the eccentric shaft assembly roller is slidably disposed in a door panel track groove. The eccentric shaft bracket includes a door panel mounting plate and an eccentric shaft mounting plate, which are connected by a connecting plate. The eccentric base is installed at an eccentric position on the eccentric shaft mounting plate. Compared with the prior art, this utility model has the following advantages: The development of this eccentric shaft structure for a passenger bus inward-swinging door satisfies the door leaf adjustment function through a redesigned structure. Simultaneously, the structural design is more rational, eliminating exposed bolts and improving the appearance quality of the door product.

Description

Technical Field

[0001] This utility model relates to the field of vehicle doors, specifically the development of an eccentric shaft structure for a passenger car interior swing door. Background Technology

[0002] Bus interior swing doors mainly consist of mechanical transmission, pneumatic control (or electric actuators), and electrical control systems. Currently, there are two types of bus interior swing door systems on the market: pneumatic interior swing doors and electric interior swing doors. Pneumatic interior swing doors have a significant cost advantage, but they also have problems such as high operating noise, insufficient cylinder life, unstable operation, and air leakage. In particular, they are not adaptable to low-temperature environments. With the popularization of new energy vehicles, the demand for electric interior swing doors is becoming increasingly urgent.

[0003] Electric double-leaf inward-swinging doors are mainly divided into single-drive double-leaf inward-swinging doors and double-drive double-leaf inward-swinging doors. Double-drive double-leaf inward-swinging doors are driven by two motors, one for each door leaf, enabling separate control of each leaf.

[0004] like Figure 5 As shown, the single-drive double-leaf inward-swinging door uses an eccentric shaft structure and a clamping block to achieve the function of adjusting the door leaf inward and outward from the vehicle. However, the overall structure is not aesthetically pleasing, which affects the overall product grade of the inward-swinging door. Utility Model Content

[0005] The technical problem to be solved by this utility model is: how to optimize the eccentric shaft structure so as to achieve a more aesthetically pleasing effect while meeting the basic functions, and at the same time facilitate the adjustment of the door leaf by the debugging personnel. Therefore, an eccentric shaft structure for the inward swing door of a bus is provided.

[0006] To solve the above problems, this utility model is achieved through the following technical solution:

[0007] An eccentric shaft assembly for a passenger car interior swing door includes an eccentric base, an eccentric shaft bracket connected to the bottom of the eccentric base, and a door panel connected to the eccentric shaft bracket; an eccentric hole is provided on the eccentric base, a roller support rod is provided in the eccentric hole, an eccentric shaft assembly roller is fitted at the end of the roller support rod, and the eccentric shaft assembly roller is slidably disposed in the door panel track groove.

[0008] The eccentric shaft bracket includes a door panel mounting plate and an eccentric shaft mounting plate, which are connected by a connecting plate; the eccentric base is installed at the eccentric position of the eccentric shaft mounting plate.

[0009] The bottom of the eccentric base is provided with a positioning step, and the eccentric shaft mounting plate is provided with a round hole, which is concentrically assembled with the positioning step.

[0010] The round hole is an oblong hole.

[0011] An adjustment hole is provided on the door panel mounting plate, and an adjustment bolt is installed in the adjustment hole. The eccentric shaft bracket is fixed to the door system by adjusting the bolt.

[0012] A locking bolt is provided on the side of the eccentric base.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The development of the eccentric shaft structure of the passenger car interior swing door of the present invention satisfies the adjustment function of the door leaf by redesigning the structure. At the same time, the structural design is more reasonable, and the bolts are not exposed, thus improving the appearance quality of the door product. Attached Figure Description

[0014] Figure 1 This is a structural diagram showing the application of an eccentric shaft structure to an inward-swinging door in a passenger vehicle.

[0015] Figure 2 This is a diagram of the eccentric shaft assembly;

[0016] Figure 3 This is a side view of the eccentric shaft assembly;

[0017] Figure 4 This is a sectional view of the eccentric shaft assembly;

[0018] Figure 5 This is a diagram of an eccentric shaft assembly in the prior art. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figure 2 , Figure 3 , Figure 4As shown, a passenger vehicle interior swing door eccentric shaft assembly 221 includes an eccentric base 5. The bottom of the eccentric base 5 is connected to an eccentric shaft bracket 6, which connects to the door panel. An eccentric hole is provided on the eccentric base 5, and a roller support rod 4 is provided in the eccentric hole. An eccentric shaft assembly roller 3 is assembled at the end of the roller support rod 4, and the eccentric shaft assembly roller 3 is slidably disposed in the door panel track groove.

[0022] Furthermore, the eccentric shaft bracket 6 includes a door panel mounting plate 61 and an eccentric shaft mounting plate 63, which are connected by a connecting plate 62; wherein, the eccentric base 5 is installed at the eccentric position (non-geometric center) of the eccentric shaft mounting plate 63.

[0023] Furthermore, the bottom of the eccentric base 5 is provided with a positioning step, and the eccentric shaft mounting plate 63 is provided with a round hole, which is concentrically fitted with the positioning step. Even better, the round hole is changed to an oblong hole, which facilitates the adjustment of the eccentric shaft assembly in the front-to-back direction of the vehicle, ensuring that the contour of the door leaf and the contour of the vehicle body are controlled within the surface difference range. At the same time, a positioning block design is added to ensure the reliability of the connection and reduce the bolt tightening force.

[0024] Even better, an adjustment hole 64 is provided on the door panel mounting plate 61, and an adjustment bolt is provided in the adjustment hole 64. The eccentric shaft bracket 6 is fixed to the door system by the adjustment bolt.

[0025] Furthermore, to ensure that the position of the eccentric base 5 remains unchanged after adjustment, the clamping shim 7 is pressed with bolts to ensure that the eccentric base 5 is secure and stable.

[0026] Furthermore, to ensure that the eccentric shaft assembly roller 3 slides smoothly within the groove without interference, the roller support rod 4 is adjustable up and down in the vehicle height direction, while also addressing necessary adjustments due to differences in different door panels. Therefore, to ensure the reliable position of the roller support rod 4 after adjustment, it is secured with bolts 8 added to the side of the eccentric base 5 to prevent loosening during vehicle operation.

[0027] like Figure 1 As shown, the eccentric shaft assembly 221 is installed in the door system. The door system consists of a door pump assembly 63, a front door shaft 150, a front door panel 1, a rear door shaft 169, and a rear door panel 15. The eccentric shaft assembly 221 is distributed and fixed on the front door panel 1 and the rear door panel 15. During the opening and closing of the front and rear door panels, the rollers 3 of the eccentric shaft assembly restrict the movement of the door panel trajectory within the fixed groove of the door pump assembly, ensuring that the door panel trajectory is unique.

[0028] like Figure 1 , Figure 2As shown, the eccentric shaft assembly 221 connects the door panel and the eccentric shaft assembly into one unit through the eccentric shaft bracket 6. In order to ensure the vertical state of the door panel during adjustment, the hole on the eccentric shaft bracket 6 is changed to an oblong hole structure, which facilitates the adjustment of the eccentric shaft assembly in the front and rear directions of the vehicle. At the same time, in order to ensure the reliability of the connection, a positioning block design is added to reduce the bolt tightening force.

[0029] Furthermore, to ensure that the eccentric shaft assembly 221 does not interfere with the air duct and door pump mechanism in the vehicle height direction, a certain adjustment margin is required for the eccentric shaft assembly 221 in the vehicle height direction. This necessary adjustment margin is also essential to compensate for differences in product consistency. The adjustment of the eccentric shaft assembly 221 in the vehicle height direction must be easy to make, with sufficient operating space for operators to use tools. After adjustment, a suitable fastening method should be provided to avoid the risk of loosening and failure during vehicle movement. Therefore, an adjustment hole 64 is provided on the door panel mounting plate 61 of the eccentric shaft bracket 6, and an adjustment bolt is installed in the adjustment hole 64. The eccentric shaft bracket 6 is fixed to the door system by the adjustment bolt. The installation position of the eccentric shaft assembly 221 in the vehicle height direction is adjusted by adjusting the height of the bolt.

[0030] Furthermore, to ensure that the surface difference between the door panel and the vehicle body meets the requirement of 0-2mm, the door panel needs to be adjusted using an eccentric shaft after assembly to keep the surface difference between the door panel and the vehicle body within the standard range.

[0031] Furthermore, the eccentric shaft assembly 221 needs to have a compact structure, coordinate with the door panel, have a consistent color scheme, and meet the vehicle's corrosion protection requirements for components.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. An eccentric shaft assembly for an inward-swinging door of a passenger vehicle, characterized in that: It includes an eccentric base (5), the bottom of which is connected to an eccentric shaft bracket (6), and the door panel is connected through the eccentric shaft bracket (6); an eccentric hole is provided on the eccentric base (5), and a roller support rod (4) is provided in the eccentric hole. An eccentric shaft assembly roller (3) is assembled at the end of the roller support rod (4), and the eccentric shaft assembly roller (3) is slidably arranged in the door panel track groove.

2. The eccentric shaft assembly for an inward-swinging door of a passenger vehicle according to claim 1, characterized in that: The eccentric shaft bracket (6) includes a door panel mounting plate (61) and an eccentric shaft mounting plate (63), which are connected by a connecting plate (62); wherein, the eccentric base (5) is installed at the eccentric position of the eccentric shaft mounting plate (63).

3. The eccentric shaft assembly for an inward-swinging door of a passenger vehicle according to claim 2, characterized in that: The bottom of the eccentric base (5) is provided with a positioning step, and the eccentric shaft mounting plate (63) is provided with a round hole, which is concentrically assembled with the positioning step.

4. The eccentric shaft assembly for an inward-swinging door of a passenger vehicle according to claim 3, characterized in that: The round hole is an oblong hole.

5. The eccentric shaft assembly for an inward-swinging door of a passenger vehicle according to claim 2, characterized in that: An adjustment hole (64) is provided on the door panel mounting plate (61), and an adjustment bolt is provided in the adjustment hole (64). The eccentric shaft bracket (6) is fixed to the door system by the adjustment bolt.

6. The eccentric shaft assembly for an inward-swinging door of a passenger vehicle according to claim 2, characterized in that: A fastening bolt (8) is provided on the side of the eccentric base (5).

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