Double-lifting-point supporting structure and trailer

Abstract

The utility model relates to the technical field of folding trailers, in particular to a double-lifting-point supporting structure and a trailer, aims to solve the problem that an existing trailer is high after being folded, and improves an existing trailer structure, the double-lifting-point supporting structure comprises a supporting frame, and the supporting frame comprises a middle support and an edge support. The middle support comprises a first folding structure and lifting points, the lifting points are arranged at the ends of the first folding structure respectively, the first folding structure can be folded and unfolded in the vertical direction, and the edge support is of a structure which is hinged through the lifting points and can be folded and unfolded in the vertical direction, has the lower folding height and is applied to a trailer. And the device is suitable for a height-limited storage space condition, and has a good development prospect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of folding trailer, especially to double lifting point support structure and trailer. BACKGROUND

[0002] Folding trailer is widely used in daily transport and camping activities because of its small space occupation, convenient pushing and time and labor saving characteristics after storage, and the existing trailer mostly adopts the structure that the bottom is single lifting point, and the lifting point is the storage point, and the connecting rod around the lifting point is hinged as the bottom support of the trailer.

[0003] In the case that the folding trailer needs to be placed in the trunk of the vehicle and the space is insufficient, the existing trailer structure needs to be improved, and the application aims to design a support structure and trailer with lower height after storage, while ensuring the structural strength. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide double lifting point support structure and trailer, which solves the problem of high height after folding of the existing trailer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: double lifting point support structure, including support frame, the support frame includes middle support and edge support, the middle support includes first folding structure and lifting point, the lifting point is respectively arranged at each end of the first folding structure, the first folding structure can be folded and unfolded in the vertical direction, and the edge support is a structure that can be folded and unfolded in the vertical direction through the hinge of each lifting point.

[0006] By adopting the above technical scheme, the lifting points respectively arranged at each end of the first folding structure form a double lifting point support structure, which can realize lower folding height compared with the traditional structure with only one middle connecting point under the condition that the length of the trailer bottom is constant, reduce the occupied space in the height direction, and is suitable for storage in the environment with insufficient space height but certain width space, and the double lifting point support structure can drive other structures to fold by pulling any one lifting point or both lifting points when folding and storing.

[0007] Further, the first folding structure is an X-shaped folding structure, and each end of the first folding structure is hingedly fixed with the corresponding lifting point.

[0008] By adopting the above technical scheme, the first folding structure has simple connection mode and is convenient to store.

[0009] Further, the edge support is provided with multiple groups, each edge support includes a first connecting rod and a second connecting rod, and the first connecting rod and the second connecting rod are hingedly connected to form a second folding structure.

[0010] By adopting the above technical solution, the number and extension direction of edge supports can be adjusted according to different application scenarios.

[0011] Furthermore, the first link and the second link are hinged at the middle to form an X-shaped edge support.

[0012] By adopting the above technical solution, this edge support has higher support strength.

[0013] Furthermore, one end of the second link is hinged to the middle of the first link to form a Y-shaped edge support.

[0014] By adopting the above technical solution, this edge support can be made lighter by using shorter connecting rods while ensuring basic support strength.

[0015] Furthermore, the lifting points include a first upper lifting point, a first lower lifting point, a second upper lifting point, and a second lower lifting point. The first upper lifting point and the first lower lifting point are set correspondingly, and the second upper lifting point and the second lower lifting point are set correspondingly, forming a central support in the unfolded state where the first upper lifting point and the first lower lifting point are stacked vertically, and the second upper lifting point and the second lower lifting point are stacked vertically.

[0016] By adopting the above technical solution, the support frame in the unfolded state has a double-layer structure, which improves the load-bearing capacity compared with the conventional single-layer, single-point support.

[0017] The trailer includes the aforementioned dual-lifting-point support structure. The trailer includes multiple vertical supports, with side supports provided between adjacent vertical supports. The support frame serves as the bottom support of the trailer, and the end of each edge support away from the central support is connected to the corresponding vertical support, forming a frame structure for the foldable trailer.

[0018] By adopting the above technical solutions, the trailer is lower in height and has a stronger load-bearing capacity when folded, making it more convenient to use.

[0019] Furthermore, the trailer includes four vertical supports, with two sets of edge supports respectively provided at both ends of the central support.

[0020] By adopting the above technical solution, a trailer structure with a rectangular bottom is formed.

[0021] Furthermore, each of the edge support ends is provided with a connector to connect to the vertical support.

[0022] By adopting the above technical solution, the support frame is connected to the vertical support of the trailer.

[0023] Furthermore, the trailer includes a handle, which includes a folding lever and a folding lever, the folding lever and the folding lever being hinged by a flip structure.

[0024] By adopting the above technical solution, in the folded state, the folding lever folds relative to the folding lever to reduce the trailer's storage height.

[0025] Compared with the prior art, the advantages of this utility model are: the folded state has a lower height, and the double-layer bottom support has a stronger load-bearing capacity when unfolded; the multi-point lifting structure allows users to unfold and fold using multiple lifting points as fulcrums, making it more convenient to use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the double-lifting point support structure of this utility model. Figure One .

[0027] Figure 2 This is a schematic diagram of the X-shaped edge support structure of this utility model applied to a trailer. Figure One .

[0028] Figure 3 This is a schematic diagram of the X-shaped edge support structure of this utility model applied to a trailer. Figure Two .

[0029] Figure 4 This is a schematic diagram of the double-lifting point support structure of this utility model. Figure Two .

[0030] Figure 5 This is a schematic diagram of the Y-shaped edge support structure of this utility model applied to a trailer. Figure One .

[0031] Figure 6 This is a schematic diagram of the Y-shaped edge support structure of this utility model applied to a trailer. Figure Two .

[0032] In the diagram: 1. First folding structure, 2. Lifting point, 2.1. First upper lifting point, 2.2. First lower lifting point, 2.3. Second upper lifting point, 2.4. Second lower lifting point, 3. Edge support, 3.1. First connecting rod, 3.2. Second connecting rod, 4. Vertical support, 5.1. Sliding connector, 5.2. Fixed connector, 6. Side support, 7.1. Folding rod, 7.2. Folding rod. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] Example 1: By Figures 1 to 6A dual-point support structure is provided, including a support frame. The support frame includes a central support and edge supports 3. The central support includes a first folding structure 1 and lifting points 2. The lifting points 2 are respectively provided at each end of the first folding structure 1. The first folding structure 1 can be folded and unfolded in the vertical direction. The edge supports 3 are foldable structures hinged to each lifting point 2. The first folding structure 1 is an X-shaped folding structure. Each end of the first folding structure 1 is hinged and fixed to the corresponding lifting point 2. Multiple sets of edge supports 3 are provided. Each edge support 3 includes a first connecting rod 3.1 and a second connecting rod 3.2. The first connecting rod 3.1 and the second connecting rod 3.2 are hinged to form a second folding structure.

[0035] Example 2: Trailer, by Figure 2 , Figure 3 , Figure 5 and Figure 6 The trailer includes multiple vertical supports 4, and side supports 6 are provided between two adjacent vertical supports 4. The double lifting point support structure in the above embodiment 1 serves as the bottom support of the trailer. The end of each edge support 3 away from the middle support is connected to the corresponding vertical support 4 to form the frame structure of the folding trailer.

[0036] Based on the above embodiments, the lifting points include a first upper lifting point 2.1, a first lower lifting point 2.2, a second upper lifting point 2.3, and a second lower lifting point 2.4. The first upper lifting point 2.1 and the first lower lifting point 2.2 are correspondingly set, and the second upper lifting point 2.3 and the second lower lifting point 2.4 are correspondingly set, forming a middle support in which the first upper lifting point and the first lower lifting point are stacked in upper and lower layers in the unfolded state, and the second upper lifting point and the second lower lifting point are stacked in upper and lower layers.

[0037] Taking a conventional rectangular trailer as an example, the trailer includes four vertical supports 4, and two sets of edge supports 3 are respectively set at both ends of the central support. Each lifting point 2 is simultaneously connected to a connecting rod in the central support and a connecting rod in one of the two edge supports on the same side and layer as the lifting point.

[0038] Example 3: Trailer structure, consisting of... Figures 2 to 3 As shown, the first connecting rod 3.1 and the second connecting rod 3.2 are two connecting rods of equal length, which are hinged at the middle to form an X-shaped edge support. At this time, the ends of the first connecting rod 3.1 and the second connecting rod 3.2 are respectively provided with connectors to connect to the corresponding vertical support 4 on the trailer. The connectors include a sliding connector 5.1 and a fixed connector 5.2. In the unfolded state, the lower end of the connecting rod of the edge support is connected to the fixed connector 5.2, and the upper end of the connecting rod is connected to the sliding connecting rod, so that during the folding process, the connecting rod hinged to the sliding connector 5.1 slides upward along the vertical support 4 while folding to complete the folding.

[0039] Example 4, by Figures 5 to 6The difference from Embodiment 3 is that the length of the second connecting rod 3.2 is half the length of the first connecting rod 3.1. One end of the second connecting rod 3.2 is hinged to the lifting point, and the other end is hinged to the first connecting rod 3.1 to form a Y-shaped edge support. One end of the first connecting rod 3.1 is hinged to the lifting point, and the other end is hinged to the connector and connected to the corresponding vertical support through the connector.

[0040] Based on the above embodiments, the side support is an X-shaped folding structure, which is hinged and fixed by fixed connectors and sliding connectors. Compared with conventional folding trailer structures, the overall structural design is simpler.

[0041] Example 5: Based on the above examples, the trailer includes a handle, which includes a folding lever 7.1 and a folding lever 7.2. The folding lever 7.1 and the folding lever 7.2 are hinged by a flip structure, which can be a hinge or a pivot structure.

[0042] The difference from Embodiment 5 is that the handle includes a bottom pull rod structure and a telescopic pull rod 7.3. The bottom pull rod structure is provided with a channel for the telescopic pull rod 7.3 to pass through, and the bottom of the telescopic pull rod 7.3 is provided with a limit to prevent the telescopic pull rod from coming out of the channel.

[0043] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-point support structure, including a support frame, characterized in that, The support frame includes a central support and edge supports. The central support includes a first folding structure and lifting points. The lifting points are respectively provided at each end of the first folding structure. The first folding structure can be folded and unfolded in the vertical direction. The edge support is a structure that can be folded and unfolded in the vertical direction and is hinged to each lifting point.

2. The double-point support structure according to claim 1, characterized in that, The first folding structure is an X-shaped folding structure, and each end of the first folding structure is hinged and fixed to the corresponding lifting point.

3. The double-lifting-point support structure according to claim 1, characterized in that, The edge support is provided in multiple sets, and each edge support includes a first link and a second link, with the first link and the second link hinged to form a second folding structure.

4. The double-lifting-point support structure according to claim 3, characterized in that, The first link and the second link are hinged at the middle to form an X-shaped edge support.

5. The double-lifting-point support structure according to claim 3, characterized in that, One end of the second link is hinged to the middle of the first link to form a Y-shaped edge support.

6. The double-lifting-point support structure according to claim 1, characterized in that, The lifting points include a first upper lifting point, a first lower lifting point, a second upper lifting point, and a second lower lifting point. The first upper lifting point and the first lower lifting point are set correspondingly, and the second upper lifting point and the second lower lifting point are set correspondingly, forming a central support in the unfolded state where the first upper lifting point and the first lower lifting point are stacked vertically, and the second upper lifting point and the second lower lifting point are stacked vertically.

7. A trailer, comprising the dual-lifting-point support structure as described in any one of claims 1-6, characterized in that, The trailer includes multiple vertical supports, with side supports between adjacent vertical supports. The support frame serves as the bottom support of the trailer, and the end of each edge support away from the central support is connected to the corresponding vertical support, forming a frame structure for the foldable trailer.

8. The trailer according to claim 7, characterized in that, The trailer includes four vertical supports, and the edge supports are provided in two sets at both ends of the central support.

9. The trailer according to claim 7, characterized in that, Each edge support end is provided with a connector to connect to the vertical support.

10. The trailer according to claim 7, characterized in that, The trailer includes a handle, which includes a folding lever and a folding lever, the folding lever and the folding lever being hinged by a flip structure.

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