Multifunctional luggage case

Abstract

The utility model discloses a multifunctional luggage case, which belongs to the field of luggage cases, and comprises a case body, rollers, a pull rod and a backrest, the lower end of the backrest is connected with the lower end of the case body through a hinge, and the upper end of the backrest is detachably connected with the upper end of the case body through a lock catch; a connecting rod assembly is further connected between the backrest and the box body and used for limiting the maximum rotation angle of the backrest relative to the box body. The chair is simple in structure and reasonable in design, and the angle between the backrest and the box body can be kept unchanged under the limitation of the connecting rod assembly, so that when a user sits on the box body, the waist and the back of the user can be supported, and the situation that the waist is soreness and the back is painful after the user sits for a long time is avoided.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a multifunctional luggage. Background Technology

[0002] A suitcase, also known as a travel case or rolling case, is a box carried when traveling to store belongings. Usually, a suitcase is used to store clothing, personal care products and souvenirs needed for the trip.

[0003] With the development of technology, my country's transportation has become increasingly advanced, and people have more and more choices of transportation when traveling. As we all know, my country has a large population, and when people travel, there are often not enough seats in waiting halls at stations and train stations, especially during holidays. At this time, passengers without seats can only stand and wait for their trains. If the waiting time is long, passengers are prone to fatigue.

[0004] Although users can use their suitcases as stools while waiting for their trains, the lack of support for their lower back and back inevitably leads to back pain when sitting on the suitcases for extended periods, thus diminishing their travel experience. Utility Model Content

[0005] In view of the problem that existing suitcases cannot provide lumbar and back support when used as stools, the purpose of this utility model is to provide a multifunctional suitcase to at least partially solve the above-mentioned problem.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A multifunctional suitcase includes a suitcase body, wheels, and a pull rod, and also includes a backrest. The lower end of the backrest is connected to the lower end of the suitcase body via a hinge, and the upper end of the backrest is detachably connected to the upper end of the suitcase body via a latch. A linkage assembly is also connected between the backrest and the suitcase body, and the linkage assembly is used to limit the maximum rotation angle of the backrest relative to the suitcase body.

[0008] In a preferred embodiment, the linkage assembly includes a back linkage and a box linkage that are pivotally connected to each other, and the back linkage and the box linkage are also pivotally connected to the backrest and the box body, respectively.

[0009] In a preferred embodiment, the back connecting rod and / or the box connecting rod are telescopic rods.

[0010] In a preferred embodiment, the telescopic rod includes two rods that are slidably connected to each other, one of the rods is fixedly mounted with a spring pin, and the other rod has a plurality of pin holes spaced along its length that are adapted to the spring pin.

[0011] In a preferred embodiment, the backrest includes a gantry-shaped backrest support and a support net connected between two opposite sides of the backrest support.

[0012] In a preferred embodiment, the hinge and the linkage assembly are arranged on both opposite sides of the backrest support.

[0013] In a preferred embodiment, the support net is made of an elastic material.

[0014] The beneficial effects of this utility model by adopting the above technical solution are as follows: due to the backrest that is pivotally connected to the box body and the connecting rod assembly that connects the backrest and the box body, the backrest can maintain a constant angle with the box body under the restriction of the connecting rod assembly, thereby providing support for the user's lower back when the user sits on the box body and avoiding back pain caused by prolonged sitting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the multifunctional suitcase of this utility model when the backrest function is used;

[0017] Figure 3 This is a schematic diagram of the backrest in this utility model;

[0018] Figure 4 This is a schematic diagram of the telescopic rod in Embodiment 2 of this utility model;

[0019] Figure 5 This is a schematic diagram of the telescopic rod from another angle in Embodiment 2 of this utility model.

[0020] In the diagram: 1-Box body, 2-Roller, 3-Pull rod, 4-Backrest, 41-Backrest bracket, 42-Support net, 5-Hinge, 6-Lock, 7-Linkage assembly, 71-Back linkage, 72-Box linkage, 70a, 70b-Ribbon body, 8-Spring pin, 81-Outer shell, 82-Pin, 83-Pin spring, 84-Bending part. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the description of the structure of this utility model shown in the accompanying drawings. They are only for the convenience of describing this utility model 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.

[0023] The terms "first" and "second" in this technical solution are merely designations for corresponding structures that are identical or similar, or that perform similar functions. They do not represent an arrangement of the importance of these structures, nor do they imply any ranking, comparison of size, or other meaning.

[0024] Furthermore, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two structures. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the overall concept and the specific context of the solution.

[0025] Example 1

[0026] A suitcase, used as a container for temporary storage of items during business trips, is generally rectangular in shape and mainly consists of a suitcase body 1, wheels 2, and a pull rod 3. The suitcase body 1 is typically divided into two interconnected half-shells, which are sealed together by a zipper or latch. The bottom of the suitcase body 1 is usually equipped with wheels 2 for easy movement; two wheels 2 can be arranged on one side of the bottom surface of the suitcase body 1, or two wheels can be arranged on each side. One side of the suitcase body 1 usually also has a retractable pull rod 3 built into it, with the handle of the pull rod 3 protruding from the outside of the suitcase body 1 for easy dragging of the suitcase. As this is prior art, the composition and structure of the suitcase will not be described in further detail in this embodiment.

[0027] like Figure 1-3As shown, the multifunctional suitcase provided in this embodiment of the utility model also includes a backrest 4. The backrest 4 and the pull rod 3 are respectively arranged on two opposite sides of the suitcase body 1. For example, the backrest 4 is arranged on the front of the suitcase body 1, and the pull rod 3 is arranged on the back of the suitcase body 1. When it is necessary to take out or put in items, the back of the suitcase body 1 is usually placed on the ground.

[0028] In this embodiment, the backrest 4 includes a backrest support 41 with a gantry-shaped structure and a support net 42 connected between two opposite sides of the backrest support 41. Typically, the support net 42 is made of elastic material, thereby providing a more comfortable elastic support effect for the user's back.

[0029] The lower ends of the two opposite sides of the backrest 4 are connected to the lower end of the case body 1 via hinges 5 (e.g., hinges). The upper end of the backrest 4 is detachably connected to the upper end of the case body 1 via a latch 6. When the upper end of the backrest 4 is connected to the case body 1 via the latch 6, the backrest 4 is flush against one side of the front of the case body 1 and is roughly parallel to the front of the case body 1.

[0030] In this embodiment, a linkage assembly 7 is also connected between the backrest 4 and the case body 1. The linkage assembly 7 is used to limit the maximum rotation angle of the backrest 4 relative to the case body 1. That is, when the backrest 4 is in use, the linkage assembly 7 can keep the backrest 4 from tipping over under the force applied by the user's back.

[0031] Specifically, the linkage assembly 7 includes a back link 71 and a housing link 72. One end of the back link 71 is pivotally connected to one end of the housing link 72 via a pivot, and the other end of the back link 71 and the other end of the housing link 72 are pivotally connected to the backrest 4 and the housing body 1, respectively.

[0032] In this embodiment, two linkage assemblies 7 are configured. The two linkage assemblies 7 (including the back linkage 71) are arranged symmetrically and connected to the two opposite sides of the backrest bracket 41, respectively. The two linkage assemblies 7 (including the box linkage 72) are also arranged symmetrically and connected to the two opposite sides (front side wall and rear side wall) of the box body 1, respectively. It is easy to understand that the rotation surfaces of the back linkage 71 and the box linkage 72 do not coincide and are successively moved away from the backrest bracket 41, thus avoiding interference between the components during use.

[0033] It is easy to understand that in this embodiment, the maximum rotation angle of the backrest 4 relative to the body 1 is approximately between 90° and 110°. This ensures the comfort of sitting while preventing the backrest 4 from flipping over when the rotation angle is too large.

[0034] Example 2

[0035] In this embodiment, the back connecting rod 71 is configured as a telescopic rod. Specifically, as follows: Figure 4 and Figure 5 As shown, the telescopic rod includes two rods 70a and 70b that are slidably connected to each other. A spring pin 8 is fixedly installed on one rod 70a, and a number of pin holes 9 that are adapted to the spring pin 8 are opened at intervals along the length of the other rod 70b.

[0036] The spring-loaded pin 8 includes a housing 81, a pin 82, and a pin spring 83. The housing 81 is cylindrical and fixedly mounted on the side wall of the rod 70a. The pin 82 is movably inserted into the housing 81, and the pin spring 83 is arranged in the housing 81 and sleeved on the outer wall of the pin 82. Simultaneously, one end of the pin spring 83 facing the rod 70b abuts against a limiting block on the pin 82, and the other end abuts against the inner wall of the end face of the housing 81. The pin spring 83 is in a compressed state, providing the elastic force to move the pin 82 towards the rod 70b. Both ends of the housing 81 have through holes that allow only the pin 82 to pass through but not the pin spring 83. At the end facing the rod 70b, the pin 82 passes through the housing 81 and is inserted into a pin hole 9 on the rod 70b; at the end away from the rod 70b, the pin 82 passes through the housing 81, revealing a bent portion 84 suitable for manual lifting. In use, by pulling the bend 84, the locking state of the spring pin 8 to the two rods 70a and 70b can be released. After the two rods 70a and 70b move to the appropriate position, the bend 84 is released, and the pin 82 in the spring pin 8 is inserted into the pin hole 9 on the rod 70b under the elastic force provided by the pin spring 83, thereby locking the length of the back connecting rod 71.

[0037] Thus, by adjusting and locking the length of the backrest link 71, the maximum rotation angle of the backrest 4 relative to the box body 1 can be controlled, thereby obtaining the desired backrest angle.

[0038] Similarly, the box connecting rod 72 can be configured as a telescopic rod on its own, or both the back connecting rod 71 and the box connecting rod 72 can be configured as telescopic rods.

[0039] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A multi-functional luggage case comprising a case body, a caster and a trolley handle, characterized in that: It also includes a backrest, the lower end of which is connected to the lower end of the case body via a hinge, and the upper end of which is detachably connected to the upper end of the case body via a latch; wherein, a linkage assembly is also connected between the backrest and the case body, the linkage assembly being used to limit the maximum rotation angle of the backrest relative to the case body.

2. The multi-functional luggage case of claim 1, wherein: The linkage assembly includes a back linkage and a box linkage that are pivotally connected to each other. The back linkage and the box linkage are also pivotally connected to the backrest and the box body, respectively.

3. The multi-functional luggage case of claim 2, wherein: The back connecting rod and / or the box connecting rod are telescopic rods.

4. The multi-functional luggage case of claim 3, wherein: The telescopic rod includes two rods that are slidably connected to each other. One of the rods is fixedly equipped with a spring pin, and the other rod has a number of pin holes that are adapted to the spring pin at intervals along its length.

5. The multi-functional luggage case of claim 1, wherein: The backrest includes a gantry-shaped backrest support and a support net connected between two opposite sides of the backrest support.

6. The multifunctional suitcase according to claim 5, characterized in that: The hinges and the connecting rod assemblies are arranged on both opposite sides of the backrest support.

7. The multi-functional luggage case of claim 5, wherein: The support net is made of elastic material.

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