Backrest supporting structure of luggage case

Abstract

The utility model discloses a backrest supporting structure of a luggage case, which comprises a backrest body hinged with a case body, and when the backrest body is opened, the backrest body is supported with the upper surface of the case body. The backrest has the advantages that the structure is simple and reasonable, when the backrest body is opened, the backrest body is supported with the upper surface of the box body, and the box body is used for providing a supporting foundation for the backrest body, so that the backrest can be stably and reliably supported, and the reliability of a child sitting on the backrest is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage case manufacturing, in particular to a back support structure of a luggage case. Background Art

[0002] A suitcase is a container used to store clothing when traveling. It's typically equipped with wheels and a retractable handle to facilitate towing. Traveling with children often involves juggling the hassle of dragging the suitcase and caring for the child. To address this issue, some luggage manufacturers have improved the structure of the suitcase, transforming it into a removable seat for children.

[0003] The existing patent application with application number CN201920476113.7 and titled “A Seat Luggage Box” discloses a luggage box comprising a box body, the box body comprising a front box shell and a rear box shell; a safety guardrail, the safety guardrail comprising a first connecting rod, a support rod and a second connecting rod; one end of the first connecting rod is movably connected to the top of the rear box shell, the other end of the first connecting rod is connected to one end of the support rod, and the other end of the support rod is connected to the second connecting rod; the first connecting rod, the support rod and the second connecting rod are perpendicular to each other, the support rod and the first connecting rod are overlapped in the rotation plane formed by turning up and down, and the plane established by the support rod and the second connecting rod is perpendicular to the plane established by the first connecting rod and the support rod. Its guardrail (i.e., backrest) adopts a rod-shaped structure, which has poor strength and a small contact area when leaning back, resulting in poor comfort.

[0004] Another patent application with application number CN 201911237513.3 and titled "A Seat-Type Suitcase" discloses a suitcase: a box body, the box body is provided with an opening and closing portion, the opening and closing portion divides the box body into a front box shell and a rear box shell; a first groove is provided on the top of the front box shell, and a second groove is provided on the top of the rear box shell, and a seat cushion is fixed in the first groove and the second groove; a reversible hidden guardrail, the guardrail includes a front panel, a left panel and a right panel; one end of the left panel is reversibly arranged on the left side of the rear box shell, and one end of the right panel is reversibly arranged on the right side of the rear box shell; the other end of the left panel and the other end of the right panel are both connected to the front panel. When the guardrail is in use, it is supported by the side support columns, and the support strength is poor. Children are active and lively, and there are also safety hazards. Therefore, their structures need to be further improved. Utility Model Content

[0005] The purpose of the present utility model is to remedy the above-mentioned deficiencies and to disclose to the public a back support structure for a suitcase which has a simple and reasonable structure, can provide stable and reliable support, and improve the safety of children riding in the suitcase.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] A backrest support structure of a luggage case comprises a backrest body hinged to a case body. When the backrest body is opened, the backrest body supports the upper surface of the case body.

[0008] The measures to further optimize this technical solution are:

[0009] As an improvement, the backrest body is in line contact with the box body when it is opened. The use of line contact increases the contact area, thereby reducing the pressure at the contact point and avoiding damage to the box body surface caused by excessive pressure.

[0010] As an improvement, the box body is provided with a horizontal support plane, and the backrest body is supported by the support plane. Providing the support plane can provide a better support foundation.

[0011] As an improvement, the backrest body includes a semi-enclosed structure formed by two side edges and a back edge. The semi-enclosed structure makes children safer when riding.

[0012] As an improvement, when the backrest body and the box body are supported, the back edge is perpendicular to the supporting plane. This arrangement makes the support more stable.

[0013] As an improvement, there is an arc transition between the side edge and the back edge.

[0014] As an improvement, the side edges are arranged in an inclined manner with the rear side higher and the front side lower, so that the front side of the backrest body has more room for movement.

[0015] As an improvement, a protrusion is provided at the lower end of the back edge, and concave cavities are formed on both sides of the protrusion.

[0016] As an improvement, the back edge and the upper ends of the two side edges are continuous arc segments.

[0017] As an improvement, a groove matching the shape of the backrest body is provided on the front side of the box body. After the backrest body is flipped and folded, the outer surface of the backrest body is flush with the front side of the box body.

[0018] The advantages of this utility model compared with the prior art are:

[0019] The utility model provides a backrest support structure for a suitcase, which has a simple and reasonable structure. When the backrest body is opened, the backrest body is supported by the upper surface of the box body, and the box body is used to provide a supporting base for the backrest body, so that the backrest can be stably and reliably supported, thereby improving the reliability of children sitting on the backrest and improving the reliability of children sitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 Enlarged view of part A in the middle;

[0022] Figure 3 This is a three-dimensional structural diagram of another perspective of the embodiment of the utility model

[0023] Figure 4 yes Figure 3 A three-dimensional structural diagram of the middle backrest body.

[0024] The names of the reference numerals in the accompanying drawings of the present utility model are:

[0025] Box body 1, supporting plane 1a, groove 1b, backrest body 2, side edge 21, back edge 22, protrusion 22a, cavity 22b. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings:

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0028] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0029] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0030] like Figures 1 to 4 As shown, a backrest support structure of a suitcase includes a backrest body 2 hinged to a box body 1. When the backrest body 2 is opened, the backrest body 2 supports the upper surface of the box body 1.

[0031] The box body 1 for children to sit on has sufficient strength itself. The upper surface of the box body 1 is used as a supporting base to provide sufficient supporting force for the backrest body 2.

[0032] When the backrest body 2 is opened and supported by the box body 1, line contact is formed. Line contact is adopted to increase the contact area, thereby reducing the pressure at the contact point and avoiding damage to the surface of the box body 1 caused by excessive pressure.

[0033] The backrest body 2 comprises a semi-enclosed structure formed by two side edges 21 and a back edge 22. The side edges 21 and back edge 22 have an arc-shaped transition. This semi-enclosed structure provides protection for children while they sit on it, while the side edges 21 also serve as armrests. The arc-shaped transition and curved end surfaces ensure smooth overall fit and enhance safety.

[0034] Furthermore, the side edges 21 are arranged in an inclined manner with the rear side higher and the front side lower. This arrangement can provide children with sufficient room for activities on the front side of the backrest, reducing the risk of children being overly restrained and becoming irritable.

[0035] Furthermore, the upper ends of the back edge 22 and the two side edges 21 are continuous arc segments.

[0036] The box body 1 is provided with a horizontal support plane 1a, and the backrest body 2 is supported by the support plane 1a.

[0037] When the backrest body 2 and the box body 1 are supported, the back edge 22 is perpendicular to the supporting plane 1a.

[0038] The lower end of the back edge 22 is provided with a protrusion 22a, and two sides of the protrusion 22a are formed with a cavity 22b. The provision of the cavity 22b can reduce the weight of the backrest body 2 to a certain extent, and can avoid the box body 1 when the backrest body 2 rotates.

[0039] The box body 1 is provided with a horizontal support plane 1a. When supporting, the back edge 22 is perpendicular to the support plane 1a, thus forming a mutually perpendicular support structure, which can further improve the stability and reliability of the support.

[0040] The front side of the box body 1 is provided with a groove 1b that matches the shape of the backrest body 2. After the backrest body 2 is turned over and folded, the outer surface of the backrest body 2 is flush with the front side of the box body 1.

[0041] When the backrest body 2 is flipped and folded, it enters the groove 1b. When closed, the outer surface of the backrest body 2 is flush with the front side of the case 1. This prevents the backrest body 2 from protruding from the surface of the case 1 when folded, thus preventing potential safety hazards caused by surface protrusions. The backrest body 2 and the case 1 can be fixed with magnets to prevent the backrest body 2 from accidentally opening when the suitcase is transported.

[0042] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A backrest support structure for a luggage case, comprising a backrest body (2) hingedly connected to a case body (1), characterized in that: When the backrest body (2) is opened, the backrest body (2) and the upper surface of the box body (1) are supported. The backrest body (2) includes a semi-enclosed structure surrounded by two side edges (21) and a back edge (22). The side edges (21) are tilted with the rear side higher and the front side lower.

2. The back support structure of a luggage case according to claim 1, characterized in that: When the backrest body (2) is opened and supported by the box body (1), it is in line contact.

3. The back support structure of a luggage case according to claim 2, characterized in that: A horizontally arranged support plane (1a) is provided on the box body (1), and the backrest body (2) is supported by the support plane (1a).

4. The back support structure of a luggage case according to claim 3, characterized in that: When the backrest body (2) and the box body (1) are supported, the back edge (22) is perpendicular to the supporting plane (1a).

5. The back support structure of a luggage case according to claim 4, characterized in that: There is an arc transition between the side edge (21) and the back edge (22).

6. The back support structure of a luggage case according to claim 5, characterized in that: A protruding portion (22a) is provided at the lower end of the back edge (22), and concave cavities (22b) are formed on both sides of the protruding portion (22a).

7. The back support structure of a luggage case according to claim 6, characterized in that: The back edge (22) and the upper ends of the two side edges (21) are continuous arc segments.

8. The back support structure of a luggage case according to claim 7, characterized in that: A groove (1b) matching the shape of the backrest body (2) is provided on the front side of the box body (1); after the backrest body (2) is turned over and folded, the outer surface of the backrest body (2) is flush with the front side of the box body (1).

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