Draw-bar box with high structural strength

Abstract

The utility model relates to the technical field of draw-bar boxes, and discloses a draw-bar box with high structural strength, which comprises two mutually hinged draw-bar box shells and a draw-bar box draw bar fixed on the surface of the rear draw-bar box shell, and further comprises a mounting plate bolted at the bottom of the front draw-bar box shell, telescopic rods are fixed to the front side and the rear side of the inner wall of the buffer frame correspondingly, movable shafts are fixed to the opposite ends of the telescopic rods correspondingly, and a through groove is formed in the surface of the top of the buffer frame. The draw-bar box has higher structural strength, so that the draw-bar box is firmer and more durable and can bear larger pressure and weight, the service life of the draw-bar box can be prolonged, a traveler can feel relieved when carrying heavy objects and does not need to worry about deformation or damage of the box body, and the draw-bar box also has better impact resistance and is convenient to use. And when being impacted by external force or falling off, the impact force can be effectively absorbed and dispersed, so that the safety of the box body and articles in the box is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley cases, in particular to a trolley case with high structural strength. Background Art

[0002] A trolley case is a type of suitcase, usually refers to a suitcase with a handle and wheels. It is widely used because of its convenience and the ability to carry clothes when traveling and going out. At the same time, trolley cases are also divided into single-tube trolley cases and double-tube trolley cases because the case has a trolley. The tubes of the trolleys are also divided into square tubes and round tubes, which are convenient for dragging while walking and greatly reduce the burden. Trolley cases can be carried by hand or dragged. There is a built-in small bag on the back of the case for items such as passports. In addition, depending on the material, trolley cases can be divided into hard-shell trolley cases and soft-shell trolley cases.

[0003] The overall structural strength of current suitcases is relatively low. During travel, especially when facing complex and changeable environments and conditions, suitcases with low structural strength may be more prone to deformation, damage, and other problems, which in turn may cause damage to items stored inside the suitcases. Moreover, most of the current suitcases do not have a drop cushioning function. When they fall or are impacted, they often cannot effectively reduce the damage to the suitcase and the items inside due to the impact force. Utility Model Content

[0004] The utility model aims to provide a trolley case with high structural strength, which can achieve impact buffering and indirectly improve the structural strength.

[0005] The purpose of the utility model is achieved as follows: a trolley case with high structural strength, comprising two trolley case shells hinged to each other and a trolley case pull rod fixed to the rear surface of the trolley case shell, and also comprising:

[0006] A mounting plate bolted to the bottom of the front trolley case shell, a buffer frame is arranged below the mounting plate, telescopic rods are fixed to the front and rear sides of the inner wall of the buffer frame, and movable shafts are fixed to the opposite ends of the telescopic rods, and a through groove is opened on the surface of the top of the buffer frame;

[0007] A connecting plate hinged to the movable shaft is arranged above the movable shaft, the top of the connecting plate passes through the through slot and is hinged to the bottom of the mounting plate, and universal wheels are installed on both the front and rear sides of the bottom of the buffer frame.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] The utility model has higher structural strength, making the trolley case more sturdy and durable, and able to withstand greater pressure and weight, which not only prolongs the service life of the trolley case, but also allows travelers to feel more at ease when carrying heavy objects without having to worry about deformation or damage of the case body. The trolley case also has better impact resistance. When subjected to external impact or falling, it can effectively absorb and disperse the impact force, thereby protecting the safety of the case body and the items inside the case. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0011] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0012] Figure 3 It is a three-dimensional schematic diagram of the buffer frame in the utility model;

[0013] Figure 4 It is a structural stacking diagram of the trolley case shell in the utility model.

[0014] Explanation of the numbers: 1. Suitcase shell; 2. Suitcase rod; 3. Mounting plate; 4. Buffer frame; 5. Telescopic rod; 6. Movable shaft; 7. Through slot; 8. Connecting plate; 9. Universal wheel; 10. Buffer strip; 11. Anti-tear protective layer; 12. Buffer protection ball; 13. Strengthened wear-resistant layer. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] like Figure 1-3 As shown, a trolley case with high structural strength includes a trolley case shell 1, the number of the trolley case shells 1 is two, and the trolley case shells 1 are hinged, a trolley case tie rod 2 is fixed to the surface of the rear trolley case shell 1, a mounting plate 3 is bolted to the bottom of the front trolley case shell 1, a buffer frame 4 is arranged below the mounting plate 3, telescopic rods 5 are fixed to the front and rear sides of the inner wall of the buffer frame 4, and movable shafts 6 are fixed to the opposite ends of the telescopic rods 5, a through groove 7 is opened on the surface of the top of the buffer frame 4, a connecting plate 8 hinged to the movable shaft 6 is arranged above the movable shaft 6, the top of the connecting plate 8 passes through the through groove 7 and is hinged to the bottom of the mounting plate 3, and universal wheels 9 are installed on the front and rear sides of the bottom of the buffer frame 4.

[0017] The interior of the telescopic rod 5 is provided with a spring, the connecting plate 8 is tilted as a whole, and the connecting plate 8 is slidably connected to the inner wall of the through slot 7, the left and right sides of the buffer frame 4 are open to form guide holes, and the left and right ends of the movable shaft 6 penetrate the buffer frame 4 and are slidably connected to the inner wall of the buffer frame 4. When the trolley case falls or hits a pothole during walking, the universal wheel 9 will first contact the ground, and the buffer frame 4 will move up, thereby reducing the distance between the buffer frame 4 and the mounting plate 3, and the connecting plate 8 moves, causing the telescopic rod 5 to contract, and the spring inside the telescopic rod 5 provides buffer protection for the entire trolley case housing 1.

[0018] like Figure 4 As shown: the trolley case shell 1 includes an anti-tear protective layer 11, a buffer protection ball 12 and a reinforced wear-resistant layer 13. The buffer protection ball 12 is bonded between the anti-tear protective layer 11 and the reinforced wear-resistant layer 13. The material of the anti-tear protective layer 11 is polyester fiber, and the anti-tear protective layer 11 is in contact with the items stored inside the trolley case. The material of the buffer protection ball 12 is thermoplastic polyurethane elastomer, and the material of the reinforced wear-resistant layer 13 is ABS & PC mixed material. Among them, the number of buffer protection balls 12 is several, and the spacing between the buffer protection balls 12 is the same. When the trolley case falls, the items inside the trolley case will first contact the anti-tear protective layer 11, and the buffer protection ball 12 will be squeezed, thereby buffering and protecting the items inside the trolley case shell 1. After the trolley case shell 1 contacts the ground, the reinforced wear-resistant layer 13 located on the outermost layer can improve the overall strength of the trolley case to avoid local damage or deformation of the trolley case.

[0019] A plurality of buffer strips 10 are bonded to the surface of one side of the suitcase shell 1, and the material of the buffer strips 10 is butyl rubber. When the suitcase shell 1 falls and the suitcase topples over, the buffer strips 10 on the surface of the suitcase shell 1 can provide buffer protection for the items inside the suitcase again.

[0020] Polyester fiber has high strength, stability and wear resistance, thermoplastic polyurethane elastomer has excellent elasticity and wear resistance, and ABS&PC hybrid material combines the excellent properties of PC and ABS. It has the excellent heat and weather resistance, dimensional stability and impact resistance of PC resin, and the excellent processing fluidity of ABS resin.

[0021] Working principle: When the user uses the suitcase, if it falls during the movement, the universal wheels 9 on both sides of the bottom of the suitcase will directly contact the ground, so that the buffer frame 4 rises and releases the mounting plate 3, and the telescopic rods 5 on both sides of the buffer frame 4 are used to buffer the entire suitcase. The buffer protection ball 12 protects the items inside the suitcase, and the reinforced wear-resistant layer 13 improves the overall strength of the suitcase to prevent the suitcase from being damaged after falling.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trolley case with high structural strength, comprising two trolley case shells (1) hinged to each other and a trolley case tie rod (2) fixed to the rear surface of the trolley case shells (1), characterized in that: Also includes: A mounting plate (3) bolted to the bottom of the front trolley case shell (1); a buffer frame (4) is arranged below the mounting plate (3); telescopic rods (5) are fixed to the front and rear sides of the inner wall of the buffer frame (4); movable shafts (6) are fixed to the opposite ends of the telescopic rods (5); and a through groove (7) is provided on the surface of the top of the buffer frame (4); A connecting plate (8) hinged to the movable shaft (6) is provided above the movable shaft (6); the top of the connecting plate (8) passes through the through slot (7) and is hinged to the bottom of the mounting plate (3); universal wheels (9) are installed on both the front and rear sides of the bottom of the buffer frame (4).

2. A trolley case with high structural strength according to claim 1, characterized in that: A spring is arranged inside the telescopic rod (5), the connecting plate (8) is arranged in an inclined manner as a whole, and the connecting plate (8) is slidably connected to the inner wall of the through groove (7).

3. A trolley case with high structural strength according to claim 1, characterized in that: The left and right sides of the buffer frame (4) are both open to form guide holes, and the left and right ends of the movable shaft (6) penetrate the buffer frame (4) and are slidably connected to the inner wall of the buffer frame (4).

4. A trolley case with high structural strength according to claim 1, characterized in that: The trolley case shell (1) comprises an anti-tear protective layer (11), a buffer protection ball (12) and a reinforced wear-resistant layer (13); the buffer protection ball (12) is bonded between the anti-tear protective layer (11) and the reinforced wear-resistant layer (13); the anti-tear protective layer (11) is made of polyester fiber, and the anti-tear protective layer (11) is in contact with items stored inside the trolley case; the buffer protection ball (12) is made of thermoplastic polyurethane elastomer.

5. A trolley case with high structural strength according to claim 4, characterized in that: The number of the buffer protection balls (12) is multiple, and the spacings between the buffer protection balls (12) are the same.

6. The trolley case with high structural strength according to claim 1, characterized in that: A plurality of buffer strips (10) are bonded to the surface of one side of the trolley case shell (1), and the buffer strips (10) are made of butyl rubber.

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