Adhesive draw-bar box
By using vacuum-formed side panels and adhesive bonding in hard-shell trolley cases, the problems of unstable connections, complex production, and high costs have been solved, resulting in a more efficient and stable connection structure that improves the service life and production efficiency of trolley cases.
Patent Information
- Application Number
- CN202520312606.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The existing hard-shell trolley case has an unstable connection structure, complex manufacturing process, high cost, and problems such as uneven adhesive distribution and easy loosening of the connection, which affect its service life and production efficiency.
The side panels are vacuum-formed and glued together. By setting side panel connecting strips, glue injection grooves, glue locking holes and glue plug layers on both sides of the box frame, a multi-layer adhesive connection is formed to ensure uniform distribution of adhesive and enhance connection strength.
It improves the structural stability and impact resistance of the suitcase, reduces production costs, simplifies the production process, improves production efficiency and product consistency, and enhances its pressure resistance, impact resistance and waterproof performance.
Smart Images

Figure CN223860325U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of adhesive formula draw-bar suitcase. BACKGROUND
[0002] With the continuous growth of travel demand, as a convenient travel tool, draw-bar suitcase has become a common travel equipment in daily life. There are many types of draw-bar suitcases on the market, including hard-shell suitcase and soft-shell suitcase. Hard-shell draw-bar suitcase is widely used in daily travel and international transportation due to its good protection performance and structural stability. However, the production process and structural design of existing hard-shell draw-bar suitcase have some problems, which affect its performance and service life.
[0003] Traditional hard-shell draw-bar suitcase usually connects box frame and side box plate by injection molding. The side box plate is usually fixed to the two sides of the box frame by mechanical fixation or screw connection, or uses adhesive as an auxiliary connection method. However, these traditional connection methods still have some technical defects, mainly including the following aspects:
[0004] Traditional connection methods such as screw fixation or direct adhesive fixation often cannot provide sufficient bonding strength. During long-term use, the side box plate of the draw-bar suitcase may be detached or loosened due to external pressure or impact force, reducing the stability and durability of the product.
[0005] Many existing draw-bar suitcases need multiple mechanical processing and manual assembly during production, especially at the connection between the side box plate and the box frame. This process not only consumes time, but also easily causes human operation errors, affecting production efficiency and the consistency of product quality.
[0006] Traditional adhesive fixation design may have uneven distribution or incomplete curing of adhesive in actual application, resulting in insufficient bonding force between the box frame and the side box plate, and further affecting the overall structural stability and impact resistance.
[0007] Due to the existence of certain gaps or uneven surfaces between the connection area of the side box plate and the box frame, the adhesive may leak or fail to completely fill these gaps during curing. This uneven adhesive layer may cause insufficient adhesion at the connection, and even cause the draw-bar suitcase to fall off or be damaged after long-term use.
[0008] In addition, the side box plate in the prior art usually adopts injection molding or other more complex processing methods, resulting in high production cost. Injection molding requires complex mold design and high-energy consumption production equipment, which makes the overall production cost high, which is not conducive to mass production and market competition. INVENTION CONTENTS
[0009] The utility model discloses a purpose at providing a kind of adhesive formula pull rod case, by adopting blister molding side box plate and adhesive fixed combination, not only effectively solve the technical problems of insufficient stability, complex production process, poor durability etc.
[0010] The utility model discloses the technical scheme in solving its technical problems is:
[0011] A kind of adhesive formula pull rod case, including box frame, and the side box plate of adhesive fixed in the two sides of box frame, the two sides of the box frame are provided with side plate connecting strip, the lock glue hole is formed on the side plate connecting strip, the side box plate is abutted to the two sides position of box frame, and it is adhered between side plate connecting strip, glue layer is formed between the side box plate and side plate connecting strip, the glue layer passes through lock glue hole, and glue bolt layer is formed on the other side of side plate connecting strip.
[0012] As preferred, glue groove is formed between the side plate connecting strip and box frame, part of the glue layer is sunk in glue groove.
[0013] As preferred, the box frame is composed of more than one injection molding injection plate, and each injection plate is fixed using screw.
[0014] As preferred, the side box plate is composed of two blister molding blister plates matched with the shape of box frame, and the blister plate forms covering on side plate connecting strip.
[0015] As preferred, the glue groove is annular and completely surrounds the periphery of side plate connecting strip.
[0016] As preferred, the lock glue hole is multiple holes, and evenly distributed on side plate connecting strip.
[0017] As preferred, the lock glue hole is strip-shaped hole body or cross-shaped hole body.
[0018] As preferred, the thickness of glue bolt layer is greater than the thickness of glue layer.
[0019] The utility model discloses the beneficial effect is:
[0020] By setting side plate connecting strip on the two sides of box frame, and through the design of glue layer, lock glue hole and glue bolt layer, the adhesion between side box plate and box frame can be effectively enhanced, so as to ensure that the structure is more firm, avoid loosening or falling off in long-term use;This scheme simplifies production process by glue injection and adhesive fixation, makes the assembly process more efficient, lower in cost, and to some extent, reduces the error of manual operation, improves the consistency and stability of product.
[0021] Through the design of glue injection grooves, glue locking holes and glue bolt layers, the distribution of the adhesive can be ensured to be more uniform and firm, and a sealed bonding area is formed, so that the ability of the trolley case to withstand external force during transportation and use is improved, and the impact resistance, compression resistance and durability of the trolley case are enhanced; through the precise design of the glue injection grooves and the glue locking holes, the leakage or gap problem in the gluing process is avoided, and it is ensured that the adhesive can completely fill the space between the box frame and the side box plate, so that the problems of loose bonding or unstable structure caused by uneven solidification are avoided. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a whole structure schematic diagram of the adhesive trolley case of the utility model;
[0023] Figure 2 It is a split structure schematic diagram of the adhesive trolley case of the utility model;
[0024] Figure 3 It is a three-dimensional partial structure schematic diagram of the adhesive trolley case of the utility model;
[0025] Figure 4 It is a side partial structure schematic diagram of the adhesive trolley case of the utility model. DETAILED DESCRIPTION
[0026] The principles and features of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model. In the following paragraphs, the utility model is described in more detail by way of example with reference to the drawings. The advantages and features of the utility model will be clearer according to the following description and claims. It should be noted that the drawings are very simplified and use non-precise proportions, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the utility model.
[0027] In the description of the utility model, need understanding is, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal" and so on indicate the orientation or positional relation based on the orientation or positional relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and so on are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" and so on can explicitly or implicitly include one or more features. In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements.
[0028] 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 the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0029] Embodiment
[0030] Reference Figures 1-4 As shown in the figure, a kind of adhesive pull rod box, including box frame 1, and the side box plate 2 of adhesive fixed in the two sides of box frame 1, the two sides of the box frame 1 are provided with side plate connecting strip 11, glue injection groove 12 is formed between the side plate connecting strip 11 and box frame 1, locking glue hole 13 is formed on the side plate connecting strip 11, the side box plate 2 is abutted on the two sides of the position of box frame 1, and is bonded between side plate connecting strip 11, glue injection layer is formed between the side box plate 2 and side plate connecting strip 11, part of the glue injection layer is sunk in glue injection groove 12, another part passes through locking glue hole 13, and glue bolt layer is formed on the other side of side plate connecting strip 11.
[0031] The design of the glue injection layer and the glue bolt layer between the side box plate 2 and the box frame 1 makes the glue connection not only rely on surface contact force, but also lock the side box plate 2 through the glue bolt layer, thereby increasing the connection strength. A part of the glue injection layer enters the glue injection groove 12, which helps to enhance the stability and durability of the combination and avoid the problem of insufficient adhesion that may occur in the conventional glue fixing mode; through the design of the multi-layer glue injection, the external impact force can be effectively dispersed, and the overall impact resistance of the box body is improved. The combination of the glue injection layer and the glue bolt layer can withstand a greater degree of external force impact, avoiding the situation that the side box plate 2 falls off or loosens.
[0032] Compared with the traditional injection molding or screw fixing mode, this glue type connection structure simplifies the production process and reduces the production cost. Especially the side box plate 2 formed by suction molding, the mold manufacturing cost and processing time are greatly reduced, thereby improving the production efficiency and reducing the production cost; through the design of the glue injection groove 12 and the glue locking hole 13, the glue layer can be evenly distributed and fixed, avoiding the uneven and leakage problems that may occur in the traditional glue fixing method. This process is not only simple, but also easy to realize automatic production, improving the consistency and efficiency of production.
[0033] This design effectively avoids the exposed parts such as screws and buckles, making the appearance of the drawstring bag more simple and smooth, and improving the aesthetic appearance. Without screws or complex connectors, external defects are reduced, and the overall quality of the product is improved; due to the design of the glue injection groove 12 and the glue locking hole 13, the glue layer can be effectively fixed, and this structure can provide longer durability, avoiding the problem that the traditional connection mode may loosen or fail after long-term use; the glue injection groove 12 and the glue bolt layer help to fill the gap between the side box plate 2 and the box frame 1, reducing the possibility of water penetration and improving the waterproof performance of the box body, protecting the internal items from moisture.
[0034] The box frame 1 is composed of one or more injection molded injection plates, and each injection plate is fixed by a screw; the side box plate 2 is composed of two suction molded suction plates matched with the shape of the box frame 1, and the suction plate forms a cladding at the side plate connecting strip 11.
[0035] The box frame 1 is composed of one or more injection molded injection plates, and each injection plate is fixed by a screw, ensuring the stability of the box structure. The injection molded plate has good strength and rigidity, and the screw connection ensures the firm combination between different plates, avoiding loosening or deformation caused by long-term use or external impact; the combination of injection molding and suction molding makes the production process more efficient. The injection plate can be manufactured by precise mold, ensuring the accuracy of size and shape. The suction molded side box plate 2 is suitable for rapid production and can be accurately matched according to the shape of the box frame 1, reducing the processing error and optimizing the production efficiency.
[0036] The combination of injection molded plates and vacuum formed plates helps to reduce overall costs. Injection molded plates, although more expensive, provide good structural strength and durability. Vacuum formed plates are lighter and less expensive to manufacture, making them suitable for use in the production of side box plates 2. The combination of these materials reduces overall production costs; vacuum formed plates are lighter than traditional materials, which helps to control the overall weight of the trolley case. The reduced weight is a significant advantage for consumers, particularly in terms of portability and ease of handling. Compared to the injection molded plates of the case frame 1, the vacuum formed plates can further reduce weight while ensuring strength and structural integrity.
[0037] The use of vacuum formed materials for the side box plates 2 and the formation of a cover at the side plate connecting strip 11 allows for a tighter connection between the side box plates 2 and the case frame 1, avoiding the presence of exposed connectors. The absence of visible screws and buckles not only improves the overall neatness of the case, but also avoids irregular seams on the exterior, making the trolley case appear more streamlined and elegant, enhancing the overall aesthetic appeal; the injection molded case frame 1 has strong impact resistance and compression resistance, effectively protecting the internal items from external impacts. At the same time, the cover design of the vacuum formed plate enhances the protective function of the trolley case, especially on the sides of the case, increasing the compression resistance and scratch resistance of the case; this design combines two different processes, injection molding and vacuum forming, allowing the case to be customized and adjusted according to actual needs. For example, the injection molded plates of the case frame 1 can be adjusted in shape and structure as needed, while the vacuum formed plates can be adjusted according to different design requirements and appearance requirements, achieving higher adaptability.
[0038] The glue injection groove 12 is annular and completely surrounds the side plate connecting strip 11, and the glue locking hole 13 is a plurality of holes uniformly distributed on the side plate connecting strip 11, the glue locking hole 13 is a strip-shaped hole body or a cross-shaped hole body, and the thickness of the glue bolt layer is greater than the thickness of the glue injection layer.
[0039] The glue injection groove 12 is annular and completely surrounds the side plate connecting strip 11, and the glue locking hole 13 is a plurality of holes uniformly distributed on the side plate connecting strip 11, the glue locking hole 13 is a strip-shaped hole body or a cross-shaped hole body, and the thickness of the glue bolt layer is greater than the thickness of the glue injection layer.
[0040] The thickness of the glue bolt layer is greater than the thickness of the glue injection layer, which helps to improve the shear strength of the structure. In use, the glue bolt layer can provide stronger support and better disperse forces from different directions, avoiding loosening or breaking of the connection between the card strip and the side plate due to external force impact; through the design of the annular glue injection groove 12 and the plurality of glue locking holes 13, the glue is more evenly distributed in the connection area, and when solidified, it will not cause the connection to be insecure due to uneven glue accumulation. Uniform glue distribution ensures the overall firmness of the card strip and the side plate, avoiding quality problems caused by excessive or insufficient glue in traditional designs.
[0041] This scheme can effectively enhance the tensile strength and compressive resistance between the card strip and the side plate. The combination of the annular glue injection groove 12 and the glue locking hole 13 makes the entire connection structure more solid, capable of withstanding greater tensile force and pressure, avoiding breakage or damage during use, and improving the service life of the product; reasonable design of the glue injection groove 12 and the glue locking hole 13 can improve the accuracy of the glue injection process, allowing glue to be more efficiently and stably injected into each connection point during production. This not only improves production efficiency, but also reduces quality problems caused by improper operation or uneven glue distribution; through the thickness difference between the glue bolt layer and the glue injection layer, the connection strength and compressive resistance in different use environments can be met. For areas requiring high-strength connection, the tensile and compressive resistance can be strengthened by increasing the thickness of the glue bolt layer, while for areas requiring lightness, the thickness of the glue injection layer can be adjusted accordingly.
[0042] The above embodiments of the present application are not a limitation on the scope of protection of the present application, and the implementation of the present application is not limited to this. According to the above content of the present application, according to the ordinary technical knowledge and common means in the art, other forms of modification, replacement or change of the above structure of the present application can be made without departing from the above basic technical idea of the present application.
Claims
1. A sticked trolley case characterized in that, The box frame is provided with side plate connecting strips on both sides, and locking glue holes are formed on the side plate connecting strips.
2. The adhesive rolling duffle of claim 1, wherein, The side plate connecting strips and the box frame are formed with glue injection grooves, and a part of the glue injection layer is sunk into the glue injection grooves.
3. The glued draw-bar box according to claim 2, characterized in that The box frame is composed of more than one injection molded injection plate, and each injection plate is fixed by screws.
4. The glued draw-bar box according to claim 3, characterized in that The side plate is composed of two blister plates which are shaped according to the box frame and are formed by blister molding.
5. The glued rolling luggage of claim 2, wherein, The glue injection grooves are annular and completely surround the side plate connecting strips.
6. The glued rolling luggage of claim 1, wherein, The locking glue holes are multiple and uniformly distributed on the side plate connecting strips.
7. The glued draw-bar box according to claim 6, characterized in that The locking glue holes are strip-shaped or cross-shaped.
8. The glued draw-bar suitcase according to claim 7, characterized in that, The thickness of the glue plug layer is greater than that of the glue injection layer.