Draw-bar box capable of improving loading capacity

By designing a hinged structure, reinforcing bars, and support system between the lower and upper boxes in the suitcase, the deformation and stability issues of the suitcase under compression are solved, achieving higher pressure resistance and safety.

CN224098889UActive Publication Date: 2026-04-10RUIAN SHENQI BAGS & LEATHER GOODS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing suitcases are prone to deformation and lack stability when squeezed, especially when laid flat, which affects safety.

Method used

The lower box is hinged to the upper box, and reinforced with longitudinal and transverse reinforcing bars and an internal frame. The bottom is connected with a fixing plate and support bars, supplemented by an adjustable support plate and guide rod, to achieve one-piece molding reinforcement and support, adapting to different object centers.

Benefits of technology

It improves the pressure resistance of the suitcase, enhances its stability and safety when laid flat, has high adaptability, and can effectively prevent deformation and misalignment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a draw-bar box capable of improving bearing capacity, which comprises a lower box body, a hinge block is hinged to one side of the lower box body, an upper box body is hinged to one side of the hinge block, a zipper is sewn at the joint position of the lower box body and the upper box body, longitudinal reinforcing strips are fixedly connected to the outer surface of the lower box body and the outer surface of the upper box body, and the longitudinal reinforcing strips are fixedly connected to the outer surface of the lower box body and the outer surface of the upper box body. Transverse reinforcing strips are fixedly connected to the side faces of the longitudinal reinforcing strips, frameworks are fixedly embedded in the lower box body and the upper box body and comprise transverse rods and longitudinal rods, the transverse rods are fixedly embedded in the transverse reinforcing strips, and the longitudinal rods are fixedly embedded in the longitudinal reinforcing strips; bending heads are arranged at the two ends of the transverse rods and the two ends of the longitudinal rods, the bending heads are fixedly embedded in the side face positions of the lower box body and the upper box body, a fixing plate is fixedly connected to the middle position of the lower surface of the lower box body, and when the box is horizontally placed, auxiliary supporting can be achieved, deformation and dislocation are avoided, the anti-pressure capacity is improved, and combined use is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of draw-bar box more specifically, relate to a draw-bar box of can improve pressure capacity. BACKGROUND

[0002] Draw-bar box refers to the luggage box with draw-bar and wheels, because it is convenient to use and is widely used, at the same time, draw-bar box is also divided into single tube draw-bar and double tube draw-bar because of the draw-bar of the box, and the tube of the draw-bar is also divided into square tube and round tube, to drag when walking, greatly reduce the burden, draw-bar box can be carried by hand also can be dragged, the wheels of the draw-bar box we use in daily life are basically located at the bottom of the box, and modern people have designed a new form of draw-bar box, the box is designed into the shape of a cylinder, and the wheels are entirely wrapped outside the box.

[0003] And the utility model discloses a high-strength compression-resistant draw-bar box, including the box, the top of the front of the box is fixedly installed with the draw-bar body. The utility model discloses a shell, buffer box, first spring, moving plate, moving column, buffer plate, moving wheel, fixed plate, second spring, first sliding slot, third spring, first sliding block, second sliding slot, second sliding block, high-strength compression-resistant layer, polyphenylene sulfide plastic layer, polyimide plastic layer, waterproof layer, acrylic resin coating layer and vinyl resin coating layer are cooperated with each other, the advantages that the strength compression resistance of draw-bar box, waterproof performance and the buffer performance to the gyro wheel are reached, when draw-bar box is extruded, the strength compression resistance of draw-bar box can be effectively improved, draw-bar box is prevented from extrusion damage, and the waterproof performance of draw-bar box can be improved, and the gyro wheel of draw-bar box can be effectively buffered and damped in elasticity, and draw-bar box gyro wheel is prevented from vibration damage.

[0004] In the above disclosed structure, the buffer box and the buffer plate are connected through the shell, the compression resistance can be increased through the buffer function, but the internal space is occupied, the normal use is affected, the surface of the box cannot be directly reinforced, and the fixed plate and the supporting strip are lacking at the bottom, the box cannot be effectively supported and reinforced when being placed flat, the box is prone to deformation, the safety and stability are poor, and improvement is needed. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims at providing a draw-bar box capable of improving pressure capacity, which can be used in combination by hinging the lower box to the upper box, and can be integrally reinforced by the surface positioning horizontal reinforcing strips and longitudinal reinforcing strips in combination with the internal embedded framework, thereby improving the compression resistance and improving the pressure capacity for facilitating the combined use.

[0006] To solve the above problems, the utility model adopts the following technical scheme.

[0007] The utility model provides a can improve the pressure -bearing capacity's draw -bar box, including the lower box, the one side of lower box is hinged with hinge block, the one side of hinge block is hinged with upper box, the interface position of lower box and upper box is sewed with zipper, the outer surface of lower box and upper box all fixedly connected with longitudinal reinforcing strip, the side of longitudinal reinforcing strip is fixedly connected with transverse reinforcing strip, the inside fixed inlay of lower box and upper box is the framework, the framework includes horizontal rod and longitudinal rod, the inside fixed inlay of horizontal rod is in the horizontal reinforcing strip, the inside fixed inlay of longitudinal rod is in the longitudinal reinforcing strip, both ends of horizontal rod and longitudinal rod are equipped with the bending head, the side position of the inside fixed inlay of lower box and upper box is the bending head, the lower surface middle position of lower box is fixedly connected with fixed plate, the inside sliding installation of fixed plate has draw -bar.

[0008] Further, the lower surface both sides of the lower box are fixedly connected with support strips, and the support strips are located on both sides of the fixed plate.

[0009] Further, the support strips and the fixed plate are fixedly connected with guide rods, and the guide rods are slidingly installed with adjusting support plates on one side.

[0010] Further, the adjusting support plates are slidingly connected to the lower surface of the lower box and located on both sides of the fixed plate. By connecting the support strips at the bottom of the lower box and installing the adjusting support plates with the guide rods, the adjusting support plates can be combined and positioned, which is beneficial for auxiliary support. Moreover, the support position can be adjusted according to the center of the loaded articles, improving the safety and stability and the adaptability.

[0011] Further, the adjusting support plates are slidingly connected to the lower surface of the lower box and located on both sides of the fixed plate. By connecting the support strips at the bottom of the lower box and installing the adjusting support plates with the guide rods, the adjusting support plates can be combined and positioned, which is beneficial for auxiliary support. Moreover, the support position can be adjusted according to the center of the loaded articles, improving the safety and stability and the adaptability.

[0012] Further, the inside of the square holes is provided with friction strips on both sides, and the friction strips are tightly connected to the both sides of the guide rods.

[0013] Further, the length of the adjusting support plates and the support strips is aligned with the length of the lower box. By setting the friction strips in the square holes of the adjusting support plates, the adjusting support plates can be combined and positioned, which avoids excessive looseness and improves the support effect, facilitating installation and use.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) The lower box is hinged with the upper box, which can be combined and used. The surface positioning transverse reinforcing strips and longitudinal reinforcing strips are combined with the internally inlaid framework, which can be integrally formed and reinforced, improving the compression resistance effect. The bottom connecting fixed plate is combined with the support strips on both sides, which can assist in supporting when placed flat, avoiding deformation and misplacement, improving the compression resistance, and facilitating combined use.

[0016] (2) through the lower box bottom connecting support bar, combined with the guide rod installation adjustment support plate, can be combined installation positioning, benefit auxiliary support, and can be adjusted according to the center of the goods loaded support position, improve the safety and stability, high adaptability.

[0017] (3) through the square hole in the adjustment support plate set friction strip, can be combined connection positioning, avoid too loose, thereby improving the support effect, benefit installation and use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure of the present application schematic diagram;

[0019] Figure 2 is the plane structure of the present application schematic diagram;

[0020] Figure 3 is the support bar connection of the present application partial structure diagram;

[0021] Figure 4 is the structure of the present application skeleton schematic diagram;

[0022] Figure 5 is the adjustment support plate connection of the present application partial schematic diagram.

[0023] Marked in the figure:

[0024] 1 lower box, 11 hinged block, 12 upper box, 13 zipper, 14 longitudinal reinforcing strip, 15 transverse reinforcing strip, 16 skeleton, 17 cross bar, 18 longitudinal rod, 19 bending head, 2 fixed plate, 21 pull rod, 22 support bar, 23 guide rod, 24 adjustment support plate, 25 square hole, 26 friction strip. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] Please refer to Figure 1 , Figure 3 and Figure 4The utility model provides a can improve the ability of pressure -resisting draw -bar box, including lower box body 1, the one side of lower box body 1 is hinged with hinge block 11, the one side of hinge block 11 is hinged with upper box body 12, the interface position of lower box body 1 and upper box body 12 is sewed with zipper 13, the outer surface of lower box body 1 and upper box body 12 is fixedly connected with longitudinal reinforcing strip 14, the side of longitudinal reinforcing strip 14 is fixedly connected with transverse reinforcing strip 15, the inside of lower box body 1 and upper box body 12 is fixedly embedded with framework 16, and framework 16 includes transverse rod 17 and longitudinal rod 18, and transverse rod 17 is fixedly embedded in the inside of transverse reinforcing strip 15, and longitudinal rod 18 is fixedly embedded in the inside of longitudinal reinforcing strip 14, and the both ends of transverse rod 17 and longitudinal rod 18 are equipped with bending head 19, can be directly formed on the hanging machine 16 when injection moulding lower box body 1 and upper box body 12, directly form longitudinal reinforcing strip 14 and transverse reinforcing strip 15 from the embedding positioning of thus can benefit integrated moulding, to improve structural strength, improve the compression effect of whole, convenient to use, and bending head 19 is fixedly embedded in the side position of lower box body 1 and upper box body 12, and the middle position of the lower surface of lower box body 1 is fixedly connected with fixed plate 2, and the inside of fixed plate 2 is slidably installed with draw -bar 21.

[0027] Please refer to Figure 2 and Figure 3 The lower surface both sides of lower box body 1 are fixedly connected with support strip 22, support strip 22 is located at the both sides of fixed plate 2, support strip 22 and fixed plate 2 are fixedly connected with guide rod 23, the one side of guide rod 23 is slidably installed with adjusting support plate 24, adjusting support plate 24 is slidably connected to the lower surface of lower box body 1, and is located at the both sides of fixed plate 2, and the bottom of lower box body is connected with support strip, and adjusting support plate is installed by guide rod, can be combined and positioned, is conducive to auxiliary support, and can adjust the support position according to the center of the article loaded, improve safety stability, and the adaptability is high, can install fixed plate 2 and support strip 22 on the bottom of lower box body 1, can assist supporting to the bottom, and adjusting support plate 24 can be adjusted according to the need to adjust the support position by guide rod, can assist supporting to the heavier article, further improve the ability of pressure -resisting, convenient to install and use, and the adaptability is high.

[0028] Please refer to Figure 3 and Figure 5The inside of the adjusting support plate 24 is provided with a square hole 25 which is slidingly connected to the surface of the guide rod 23, and the inside of the square hole 25 is provided with friction strips 26 which are tightly connected to the two side surfaces of the guide rod 23. The length of the adjusting support plate 24 and the support strip 22 is aligned with the length of the lower box body 1. The friction strips are arranged in the square hole of the adjusting support plate, and the adjusting support plate can be combined and positioned to avoid being too loose, thereby improving the supporting effect, facilitating installation and use. The square hole 25 slides on the surface of the guide rod 23, which can push the adjusting support plate 24 to move to different positions of the lower surface of the lower box body 1, and can be positioned below the filled articles in the pull rod box, and can reinforce and support the position of the heavy articles, thereby improving the safety and stability, and facilitating adjustment and use.

[0029] The above is only a preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A trolley case with improved pressure resistance, comprising a lower case (1), a hinge block (11) hinged to one side of the lower case (1), an upper case (12) hinged to one side of the hinge block (11), and a zipper (13) sewn at the interface between the lower case (1) and the upper case (12), characterized in that: The outer surface of the lower box (1) and the upper box (12) is fixedly connected with longitudinal reinforcing strips (14), the side surface of the longitudinal reinforcing strips (14) is fixedly connected with transverse reinforcing strips (15), the inside of the lower box (1) and the upper box (12) is fixedly embedded with skeletons (16), the skeleton (16) comprises transverse rods (17) and longitudinal rods (18), the transverse rods (17) are fixedly embedded in the inside of the transverse reinforcing strips (15), the longitudinal rods (18) are fixedly embedded in the inside of the longitudinal reinforcing strips (14), both ends of the transverse rods (17) and the longitudinal rods (18) are provided with bent heads (19), the bent heads (19) are fixedly embedded in the side surface positions of the lower box (1) and the upper box (12), the lower surface middle position of the lower box (1) is fixedly connected with a fixed plate (2), the inside of the fixed plate (2) is slidably installed with a pull rod (21).

2. The pressure-boostable trolley case according to claim 1, characterized in that: The lower surface both sides of the lower box (1) are fixedly connected with support strips (22), the support strips (22) are located on both sides of the fixed plate (2).

3. The pressure-boostable trolley case according to claim 2, characterized in that: The support strips (22) and the fixed plate (2) are fixedly connected with guide rods (23), one side of the guide rods (23) is slidably installed with adjusting support plates (24).

4. The pressure-boostable trolley case according to claim 3, characterized in that: The adjusting support plates (24) are slidably connected to the lower surface of the lower box (1) and are located on both sides of the fixed plate (2).

5. The pressure-boostable trolley case according to claim 3, characterized in that: The inside of the adjusting support plates (24) is provided with square holes (25), the square holes (25) are slidably connected to the surface of the guide rods (23).

6. The pressure-boostable trolley case according to claim 5, characterized in that: Both sides of the inside of the square holes (25) are provided with friction strips (26), the friction strips (26) are tightly connected to both side surfaces of the guide rods (23).

7. The pressure-able suitcase according to claim 3, wherein: The length of the adjusting support plates (24) and the support strips (22) is aligned with the length of the lower box (1).

Citation Information

Patent Citations

  • High-strength compression-resistant draw-bar box

    CN215532245U