Flexible gooseneck structure for electrically driven trailer

Abstract

The utility model relates to electric car technical field, concretely is a kind of flexible swan neck structure for electric drive trailer, including two adapter plates, flexible steel wire assembly is equipped between two adapter plates, one of which adapter plate is connected with adapter, adapter is connected with quick release joint for connecting the back bearing waistband of traction personnel, another adapter plate is used to connect with electric drive trailer;Flexible steel wire assembly includes two connecting pieces of symmetrical distribution, each connecting piece is connected with corresponding adapter plate, steel wire rope and flexible sleeve that is sleeved on the outside of steel wire rope are set between two connecting pieces.The flexible swan neck structure can solve the breakage problem caused by rigid connection easy to damage and flexible rubber connecting structure due to insufficient strength or poor weather resistance under the severe vibration working environment of electric drive trailer, and the flexible swan neck structure can realize bending and torsion of any degree of freedom, solve the asynchronous buffering problem caused by unable to reach speed and steering completely consistent when traction personnel and electric drive trailer traction travel.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle technology, specifically relating to a flexible gooseneck structure for electric drive trailers. Background Technology

[0002] Existing electric trailers with towing and following capabilities require a flexible gooseneck connection to the towing personnel. Since the speed and direction of travel of the electric trailer cannot be perfectly synchronized with the towing personnel during towing and following, the flexible gooseneck is needed to provide asynchronous buffering. Currently, domestic electric trailers using flexible goosenecks employ either rigid or flexible rubber connections. Rigid connections achieve multi-degree-of-freedom rotation through various bearings. However, because rigid connections lack buffering capabilities, the severe vibrations generated when the vehicle operates in harsh environments can easily damage bearings and other components, shortening their lifespan and affecting the comfort of the towing personnel. Flexible rubber materials can effectively solve the asynchronous buffering problem between the vehicle and the person, but rubber suffers from insufficient strength and poor weather resistance, affecting the reliability of the connection structure. Utility Model Content

[0003] To address the aforementioned shortcomings of existing flexible gooseneck structures, this invention proposes a flexible gooseneck structure for electric trailers. This flexible gooseneck structure effectively solves the problem of easy damage to rigid connections in electric trailers operating under severe vibration. Furthermore, the flexible gooseneck structure has high strength, effectively solving the problem of breakage caused by insufficient strength or poor weather resistance of flexible rubber connection structures. In addition, the flexible gooseneck structure can achieve bending and torsion of any degree of freedom, effectively solving the asynchronous buffering problem caused by the inability to achieve perfect synchronization of speed and steering when towing personnel and electric trailers are moving together.

[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows: a flexible gooseneck structure for an electric trailer, comprising: two adapter plates, with a flexible steel wire assembly between the two adapter plates, one adapter plate being connected to an adapter, the adapter being connected to a quick-release connector for connecting to a carrying belt for towing personnel, and the other adapter plate being used to connect to the electric trailer; the flexible steel wire assembly includes two symmetrically distributed connectors, each connector being connected to a corresponding adapter plate, and a steel wire rope and a flexible sleeve fitted over the outside of the steel wire rope being disposed between the two connectors.

[0005] In one embodiment, the connector is a riveting bolt. One end of the riveting bolt has a blind hole for riveting with the end of the wire rope, and the other end of the riveting bolt passes through a through hole at the center of the adapter plate and is secured with a nut. In another embodiment, the riveting bolt has a step, and both ends of the flexible sleeve have inward flanges. When the flexible sleeve is fitted onto the outside of the wire rope, the inward flanges contact the step.

[0006] In one embodiment, the outer wall surface of the quick-release connector is configured as a guide cone surface.

[0007] In one embodiment, the adapter has a bent structure.

[0008] In one embodiment, the adapter is provided with a flange face, and the quick-release connector is provided with a first flange, the first flange and the flange face are connected by bolts.

[0009] In one embodiment, the adapter is provided with a second flange, and the outer edge of the adapter plate is provided with a flange hole. The second flange and the flange hole are connected by bolts and nuts.

[0010] The flexible gooseneck structure for electric-driven trailers of this utility model can achieve the following beneficial effects:

[0011] (1) The flexible gooseneck adopts a structure combining steel wire rope and flexible sleeve, which has a good buffering effect and can solve the problem that electric drive trailers are easily damaged in high-frequency vibration working environment due to rigid connection. At the same time, it can withstand bending and torsion of any degree of freedom, effectively solving the problem of asynchronous movement difficulties caused by the inability to achieve complete speed consistency when the traction equipment or traction personnel move in conjunction with the electric drive trailer.

[0012] (2) The flexible gooseneck uses steel wire rope, which has high strength and can effectively solve the problem of insufficient strength of flexible rubber;

[0013] (3) The flexible gooseneck is made of steel wire rope, which has strong weather resistance and can effectively solve the problem of aging of flexible rubber;

[0014] (4) The adapter has a certain degree of curvature, which is more ergonomic when connecting people and vehicles.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, preferred embodiments are given below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is an exploded schematic diagram of a flexible gooseneck structure for an electric-driven trailer according to this utility model;

[0017] Figure 2 yes Figure 1 An exploded view of a medium-flexible steel wire assembly.

[0018] [Attached image labels]

[0019] 1-Quick-release connector, 101-Connector, 1011-Quick-release through hole, 102-First flange, 2-Adapter, 3-Adapter plate, 4-Flexible steel wire assembly, 401-Rivet bolt, 4011-Step, 402-Flexible sleeve, 4021-Inward flange, 403-Steel wire rope. Detailed Implementation

[0020] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown in order to avoid unnecessarily obscuring this utility model. The features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments; furthermore, the terms “first or I,” “second or II,” “third or III,” etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. It should also be noted in the description of this utility model that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Please see Figure 1 and Figure 2 This embodiment provides a flexible gooseneck structure for an electric trailer, including a quick-release connector 1, two adapter plates 3, and a flexible steel wire assembly 4. The quick-release connector is used for quick and detachable connection with the waist belt carried by the towing personnel. The flexible steel wire assembly 4 is connected between the two adapter plates. One adapter plate 3 is connected to the quick-release connector 1 through an adapter 2, and the other adapter plate 3 is used for connection with the electric trailer.

[0023] In this embodiment, the quick-release connector 101 has a through hole 1011 for the pin to pass through, and the connector is inserted into the base on the belt and connected by a pin. Furthermore, considering strength and wear resistance, the quick-release connector is made of alloy steel. Even further, the outer wall surface of the connector 101 is designed as a guide cone surface, which can further improve the connection efficiency between the connector and the base.

[0024] In this embodiment, please refer to Figure 2 The flexible steel wire assembly 4 includes two symmetrically distributed connectors. One connector is used to connect to the back belt of the towing personnel via a corresponding adapter plate 3 and adapter 2. The other connector is used to connect to the electric trailer via another corresponding adapter plate 3. A steel wire rope 403 and a flexible sleeve 402 fitted on the outside of the steel wire rope are arranged between the two connectors. The flexible sleeve can be made of flexible materials such as rubber and silicone. With the aforementioned design, the flexible steel wire assembly composed of the steel wire rope and the flexible sleeve is not a rigid structure, which can avoid the phenomenon that the electric trailer is easily damaged by rigid connections in the context of severe vibration. Furthermore, the flexible steel wire assembly has high strength and environmental adaptability, which can effectively solve the problem of breakage caused by insufficient strength or poor weather resistance of existing flexible rubber connection structures. At the same time, the flexible steel wire assembly has good toughness and can be bent in any direction, achieving bending and torsion of any degree of freedom. This can effectively solve the asynchronous buffering problem caused by the inability to achieve perfect synchronization of speed and steering when the towing personnel and the electric trailer are towing each other.

[0025] Specifically, in this embodiment, the connecting component uses a riveting bolt 401. One end of the riveting bolt has a blind riveting hole. After placing the end of the wire rope into the blind riveting hole, it is riveted using a riveting device to achieve a firm connection between the riveting bolt and the wire rope. The other end of the riveting bolt passes through the through hole at the center of the adapter plate and is tightened with a nut to connect the riveting bolt and the adapter plate. Furthermore, the riveting bolt has a step 4011, and the flexible sleeve 402 has inward flanges 4021 at both ends. When the flexible sleeve is fitted onto the outside of the wire rope, the inward flanges 4021 contact the step 4011. With the stopping action of the inward flanges and the step, the flexible sleeve can be quickly fitted onto the outside of the wire rope, and after assembly, the flexible sleeve will not easily shake or move. At the same time, the contact action of the inward flanges and the step can seal the wire rope covered by the flexible sleeve and the two riveting points, improving environmental adaptability and extending the service life of the flexible wire assembly.

[0026] In this embodiment, adapter 2 has a bent structure, so as to... Figure 1 For example, by using an adapter with a certain degree of curvature, the connector 101 of the quick-release connector is lower than the adapter plate 3, making it more ergonomic when connected to the towing personnel. Furthermore, considering weight reduction, the adapter is made of aluminum alloy.

[0027] In this embodiment, the adapter 2 has a flange face on its left side and a second flange on its right side. The quick-release connector has a first flange 102 on its right side. The outer edge of the adapter plate has a flange hole. The first flange and the flange face are connected by bolts, and the second flange and the flange hole are connected by bolts and nuts, thus achieving a stable connection between the quick-release connector, the adapter, and the adapter plate. In other embodiments of this utility model, the connector of the quick-release connector can use other existing types of detachable structures (such as spring pins) to connect to the base on the belt.

[0028] In other embodiments of this utility model, elastic cantilever arms with hooks can be symmetrically arranged on both sides of the connector. After the elastic cantilever arms pass through the through hole at the center of the adapter plate, the hooks and the wall surface of the adapter plate away from the wire rope form a stop fit to restrict the separation of the connector and the adapter plate. Then, with the help of the second flange, flange hole and bolts and nuts, the hooks are clamped between the adapter plate and the adapter.

[0029] In other embodiments of this utility model, the step on the rivet bolt and the inward flange structure at the end of the flexible sleeve can be omitted.

[0030] The above description is merely a preferred embodiment of this utility model. Any simple modifications, equivalent changes, and alterations made by those skilled in the art to the above embodiments based on the technical essence of this utility model without departing from the scope of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A flexible gooseneck structure for an electric-driven trailer, characterized in that, It includes two adapter plates (3), and a flexible steel wire assembly (4) is provided between the two adapter plates. One adapter plate is connected to an adapter, and the adapter is connected to a quick-release connector for connecting to a carrying belt for towing personnel. The other adapter plate is used to connect to an electric trailer. The flexible steel wire assembly includes two symmetrically distributed connectors, each connector being connected to a corresponding adapter plate (3). A steel wire rope (403) and a flexible sleeve (402) fitted on the outside of the steel wire rope are provided between the two connectors.

2. The flexible gooseneck structure for an electric trailer according to claim 1, characterized in that, The connector is a riveting bolt (401). One end of the riveting bolt is provided with a blind riveting hole for riveting with the end of the wire rope. The other end of the riveting bolt passes through the through hole at the center of the adapter plate and is then tightened with a nut.

3. The flexible gooseneck structure for an electric trailer according to claim 2, characterized in that, The rivet bolt is provided with a step (4011), and both ends of the flexible sleeve (402) are provided with an inward flange (4021). When the flexible sleeve is placed on the outside of the wire rope, the inward flange (4021) contacts the step (4011).

4. The flexible gooseneck structure for an electric trailer according to claim 1, characterized in that, The outer wall surface of the quick-release connector (101) is set as a guide cone surface.

5. The flexible gooseneck structure for an electric trailer according to claim 1, characterized in that, The adapter has a bent structure.

6. The flexible gooseneck structure for an electric trailer according to claim 5, characterized in that, The adapter is equipped with a flange face, and the quick-release connector is equipped with a first flange (102). The first flange and the flange face are connected by bolts.

7. A flexible gooseneck structure for an electric trailer according to claim 6, characterized in that, The adapter is equipped with a second flange, and the outer edge of the adapter plate is provided with flange holes. The second flange and the flange holes are connected by bolts and nuts.

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