Box frame assembly structure of luggage box

Abstract

The utility model discloses a box frame assembling structure of a luggage box, which comprises a side frame body plate, an upper frame body plate arranged at the top of the side frame body plate, and a lower frame body plate arranged at the bottom of the side frame body plate, the upper frame body plate and the lower frame body plate are respectively provided with an installation clamping protrusion matched with the installation clamping groove, a bolt hole position is formed in one side of each installation clamping groove, each installation clamping protrusion is a protrusion provided with an inner groove where a nut can be clamped, and the positions of the inner grooves of the installation clamping protrusions are opposite to the bolt hole positions. The box frame assembling structure of the luggage box is provided with a connecting structure with higher stability and reliability. The bolt hole site is formed in the mounting clamping groove, and the inner groove is formed in the mounting clamping protrusion and corresponds to the bolt hole site, so that close fit of the bolt and the clamping protrusion is achieved, and structural connection is firmer.

Description

Technical Field

[0001] This utility model relates to a luggage frame assembly structure. Background Technology

[0002] In existing suitcase designs, the construction and connection methods of the frame are crucial to the overall strength, durability, and lifespan of the suitcase. Currently, most suitcases use injection molding technology for their frame structure. While this structure reduces the number of parts and lowers production costs, due to the characteristics of injection molding materials, the frame is prone to breakage and deformation under prolonged use or external impact, significantly shortening the suitcase's lifespan. Furthermore, the complexity of the injection molding process may lead to dimensional deviations or insufficient mechanical properties.

[0003] In addition, some suitcases use a snap-fit ​​connection method. Although snap-fit ​​molding provides a certain structural strength compared to injection molding, its connection method is relatively simple, usually using slots and protrusions. This structure has the defects of weak connection and loose engagement, and is prone to loosening and falling off under external force, thus affecting the overall strength and stability of the suitcase.

[0004] Therefore, existing luggage frame structures have many shortcomings, mainly in terms of weak connections, poor durability, and weak impact resistance. These problems not only affect the quality and lifespan of the product but also, to some extent, reduce the user experience. Utility Model Content

[0005] The purpose of this invention is to provide a luggage frame assembly structure with a connection structure that offers higher stability and reliability. By setting bolt holes in the mounting slots and providing inner grooves on the mounting protrusions to correspond with the bolt holes, a tight fit between the bolts and the protrusions is achieved, making the structural connection more robust.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A luggage frame assembly structure includes a side frame plate, an upper frame plate disposed on the top of the side frame plate, and a lower frame plate disposed on the bottom of the side frame plate. The top and bottom of the side frame plate are provided with mounting slots. The upper frame plate and the lower frame plate are provided with mounting protrusions that cooperate with the mounting slots. One side of the mounting slot is provided with a bolt hole. The mounting protrusion is a protrusion with an inner groove for a nut to be inserted, and the inner groove of the mounting protrusion is positioned opposite to the bolt hole.

[0008] Preferably, the mounting slots of the side frame plate are multiple parallel slots opened along the width direction of the side frame plate.

[0009] Preferably, the mounting brackets on the upper and lower frame plates are rectangular protrusions.

[0010] Preferably, an adjustable gap is provided between the inner groove of the mounting bracket protrusion of the upper frame plate and the bolt hole of the side frame plate.

[0011] Preferably, the mounting brackets on both the upper and lower frame plates are injection molded parts.

[0012] Preferably, the side frame plate, upper frame plate, and lower frame plate are all fixed by bolts through screwing in after being held by mounting slots and mounting protrusions.

[0013] Preferably, the thickness of the inner groove of the mounting clip is matched with the thickness of the nut.

[0014] By ensuring proper fit between the mounting slots and protrusions, and the relative placement of bolt holes and the recessed grooves within the protrusions, a tight connection between the various parts of the frame is ensured. The engagement of the bolts and protrusions makes the connection between the slots and protrusions more secure, avoiding the loosening and detachment problems that can occur with traditional snap-fit ​​methods, thus improving overall structural stability. The recessed grooves in the design of the slots and protrusions effectively prevent the protrusions from sliding or detaching during prolonged use or under stress. This connection method significantly improves the impact resistance and durability of the suitcase frame, enabling it to withstand greater external forces and extending the lifespan of the luggage.

[0015] This design simplifies the assembly process, avoiding complex connection methods or parts requiring high-precision machining, making production and assembly more efficient. The interlocking design of slots and protrusions allows for quick positioning and fixation of components, reducing the complexity of manual operations and production costs. The combination of slots and protrusions avoids the use of excessive screws or other fasteners, reducing the number of parts and making the overall structure more compact. Simultaneously, the rationally designed structure contributes to the lightweight design of the suitcase, improving its portability. If a component is damaged or needs replacement, the slot and protrusion design facilitates easier disassembly and replacement, avoiding complex disassembly steps and improving the convenience of maintenance and repair. Attached Figure Description

[0016] Figure 1 This is an exploded view of the frame assembly structure of a suitcase according to the present invention.

[0017] Figure 2 This is an enlarged view of the mounting slot structure of a suitcase frame assembly structure according to the present invention;

[0018] Figure 3This is an enlarged view of the mounting clip protrusion structure of a suitcase frame assembly structure according to the present invention;

[0019] Figure 4 This is a schematic diagram of the assembly state of the frame assembly structure of a suitcase according to the present invention. Specific implementation methods

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" 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 through an intermediate medium; they can refer to the internal communication between two components.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0023] See Figure 1-4As shown, a luggage frame assembly structure includes a side frame plate 1, an upper frame plate 2 disposed on the top of the side frame plate 1, and a lower frame plate 3 disposed on the bottom of the side frame plate 1. The top and bottom of the side frame plate 1 are provided with mounting slots 4. The upper frame plate 2 and the lower frame plate 3 are provided with mounting protrusions 5 that cooperate with the mounting slots 4. A bolt hole 6 is provided on one side of the mounting slot 4. The mounting protrusion 5 is a protrusion with an inner groove into which a nut can be inserted, and the inner groove of the mounting protrusion 5 is positioned opposite to the bolt hole 6.

[0024] By designing the slots and protrusions to fit together, the upper frame plate 2 and the lower frame plate 3 can be firmly connected to the side frame plate 1. The inner groove of the mounting protrusion 5 is set opposite to the bolt hole 6, ensuring that the nut can be firmly inserted into the inner groove, thereby improving the connection's firmness and preventing loosening or falling off due to external impact or vibration.

[0025] This design, through the combination of slots, protrusions, and recesses, provides stronger impact resistance than traditional connection methods. Whether in daily use or under significant external force, the overall structure of the suitcase effectively maintains stability, extending its lifespan and improving its durability.

[0026] This design simplifies and speeds up the assembly of the frame. The use of slots and protrusions allows for precise positioning and fixation of the upper frame plate 2 and lower frame plate 3, eliminating the need for numerous complex fasteners. Combined with the bolt hole and recessed design, assembly can be completed quickly without complicated tools or operations, thereby improving production efficiency and reducing assembly costs.

[0027] The mounting slots 4 of the side frame plate 1 are multiple parallel slots opened along the width direction of the side frame plate 1; the mounting protrusions 5 of the upper frame plate 2 and the lower frame plate 3 are rectangular protrusions; an adjustable gap is provided between the inner groove of the mounting protrusions 5 of the upper frame plate 2 and the lower frame plate 3 and the bolt hole 6 of the side frame plate 1.

[0028] By creating multiple parallel slots on the side frame plate 1, the mounting protrusions 5 of the upper frame plate 2 and the lower frame plate 3 can slide freely within a certain range, providing higher assembly precision and flexibility. The adjustable gap design allows each component to be fine-tuned according to actual conditions, ensuring tightness of connection, avoiding assembly problems caused by errors, and further improving the stability of the structure.

[0029] The adjustable clearance design allows for flexible adjustments to the size and spacing of components during production to accommodate different manufacturing tolerances, thereby simplifying the manufacturing process and reducing assembly difficulties caused by manufacturing errors. This design effectively improves production efficiency and reduces the need for reprocessing or adjustments due to tolerance issues.

[0030] The rectangular mounting bracket protrusion 5 has a large contact area, allowing it to better engage with the slot, thus providing a more secure connection and enhancing the overall frame strength. Simultaneously, the adjustable gap design between the inner groove of the mounting bracket protrusion 5 and the bolt hole 6 further strengthens the tight fit between components, enhancing the overall stability of the suitcase, enabling it to withstand greater external impacts and pressure, and improving durability.

[0031] The mounting protrusions 5 of the upper frame plate 2 and the lower frame plate 3 are all injection molded parts; the side frame plate 1, the upper frame plate 2 and the lower frame plate 3 are all fixed by bolts through screwing in after being held by the mounting slots 4 and the mounting protrusions 5; the thickness of the inner groove of the mounting protrusion 5 matches the thickness of the nut.

[0032] The mounting brackets 5 on the upper frame plate 2 and the lower frame plate 3 are produced as injection molded parts. Compared with traditional metal processing, injection molding can significantly reduce production costs. Furthermore, injection molded parts are manufactured faster, improving production efficiency. Compared with traditional machining methods, injection molded parts can be more easily mass-produced, further saving time and costs.

[0033] Multiple connection methods are provided through the use of mounting slot 4 and mounting protrusion, as well as the screw-in fixing method, which enhances the stability of the structure. The inner groove of mounting protrusion 5 matches the thickness of the nut, ensuring that the nut can be accurately engaged in the inner groove, avoiding the risk of the nut loosening. This makes the overall structure more robust and reliable, improving the impact resistance and durability of the suitcase.

[0034] The design of the inner groove of the mounting bracket 5, which matches the thickness of the nut, allows the nut to be precisely engaged and perfectly matched with the bracket, avoiding errors during assembly. The combination of bolt connection and bracket design simplifies the assembly process, reduces reliance on tools, improves assembly accuracy, and avoids assembly instability caused by improper manual assembly, thus ensuring assembly quality.

[0035] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A suitcase frame assembly structure, characterized in that: It includes a side frame plate, an upper frame plate disposed on the top of the side frame plate, and a lower frame plate disposed on the bottom of the side frame plate. The top and bottom of the side frame plate are provided with mounting slots. The upper frame plate and the lower frame plate are provided with mounting protrusions that cooperate with the mounting slots. One side of the mounting slot is provided with a bolt hole. The mounting protrusion is a protrusion with an inner groove for a nut to be inserted, and the inner groove of the mounting protrusion is positioned opposite to the bolt hole.

2. The luggage frame assembly structure according to claim 1, characterized in that: The mounting slots of the side frame plate are multiple parallel slots opened along the width direction of the side frame plate.

3. The luggage frame assembly structure according to claim 1, characterized in that: The mounting brackets on the upper and lower frame plates are rectangular protrusions.

4. The luggage frame assembly structure according to claim 3, characterized in that: An adjustable gap is provided between the inner groove of the mounting bracket protrusion of the upper frame plate and the bolt hole of the side frame plate.

5. The luggage frame assembly structure according to claim 4, characterized in that: The mounting brackets on both the upper and lower frame plates are injection molded parts.

6. The luggage frame assembly structure according to claim 1, characterized in that: The side frame plate, upper frame plate, and lower frame plate are all fixed by bolts through screwing in after being held by mounting slots and mounting protrusions.

7. The luggage frame assembly structure according to claim 6, characterized in that: The thickness of the inner groove of the mounting clip is matched with the thickness of the nut.

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