CN201226918Y - Draw-bar traveling box - Google Patents

Abstract

The trolley suitcase belongs to the field of travel equipment technology. Its main body is a telescopic box with adjustable peripheral wall height. It is characterized in that the telescopic box is composed of a box cover, a middle telescopic box and a fixed box. It is hinged with one side of the middle telescopic box, the middle telescopic box is connected with the fixed box, and the fixed box is equipped with telescopic pull rods, and the bottom of the fixed box is symmetrically provided with a pair of adjustable struts that cooperate with its rotation. , and the rollers are set symmetrically at the bottom corners on both sides. The trolley suitcase can adjust the volume of the suitcase by adjusting the height of the surrounding box walls to suit the amount of stored items. With the height adjustment of the box wall and the change of the center of gravity of the box caused by the change of the box volume, the support center is adjusted so that the support center can be consistent with the center of gravity of the box, so as to ensure that the suitcase is placed stably and prevents it from tipping over.

Description

trolley suitcase

technical field

The utility model belongs to the technical field of travel appliances, in particular to a trolley suitcase.

Background technique

The traditional trolley suitcase basically adopts a fixed box structure. The outer dimensions and volume of the box of this kind of suitcase are fixed, and the adaptability in actual use is relatively poor. When traveling on long-distance or long-term business trips, you need to carry more items, you will need to configure a larger suitcase, and for short-distance, short-term business trips, travel, you generally need to carry fewer items, you will want to use Relatively small suitcases, in addition, large boxes take up a lot of space for storage, which is also a problem for most families with less affluent living environments. In order to meet different use needs and save space for storage, there are also a variety of suitcases that adjust the volume of the box by adjusting the height of the perimeter of the box, and have achieved certain expected results. Corner-mounted rollers, and some change the front two rollers into fixed support feet to reduce costs. Because the depth of the cabinet can be adjusted, and the number of items placed inside the cabinet will change from time to time, the center of gravity of the cabinet will change at any time. Such support mechanisms are prone to overturning of the box.

Utility model content

The utility model aims to provide a trolley suitcase technical scheme in which the volume of the box body is adjusted by adjusting the height of the surrounding box walls, and the support center of the box body can be adjusted according to the position of the center of gravity of the box body, so as to overcome the problems existing in the prior art. question.

The trolley suitcase, the main body of which is a telescopic box with adjustable peripheral wall height, is characterized in that the telescopic box is composed of a box cover, a middle telescopic box, and a fixed box. One side of the telescopic box is hinged, the middle telescopic box is connected with the fixed box, and the fixed box is equipped with telescopic pull rods, and the bottom of the fixed box is symmetrically provided with a pair of adjustable struts that cooperate with its rotation. Set the scroll wheel symmetrically at the bottom corner.

The trolley suitcase is characterized in that the adjustable strut is arranged at the bottom of the fixed box body through the angled connector, the inner end of the adjustable strut is inserted into the angled connector and is connected to the angled connector through the pin shaft. The top angle is rotated and connected, and the outer end of the adjustable strut is matched with a downwardly curved support foot, and the corner-wrapped connector is fixedly connected to the bottom of the fixed box.

The trolley suitcase is characterized in that the middle telescopic box adopts a soft box telescopic structure with built-in movable braces, and its lower edge is seamed and matched with the upper edge of the fixed box.

The trolley suitcase is characterized in that the walls around the fixed box are of a double-layer structure, and the walls around the flexible box in the middle are plugged into the slots formed by the double-layer walls of the fixed box and fixed to the fixed box. body elastic connection.

The trolley suitcase is characterized in that a handle is connected to one side of the fixed box body.

The trolley suitcase is characterized in that a storage bag is connected to the outer side of the lid.

The trolley suitcase is characterized in that the two inner sides of the angled connectors form a right angle structure, and the rotation angle of the adjustable strut in the angled connectors is 0-90°.

The above trolley suitcase is novel in concept and reasonable in structure. The height of the surrounding box wall can be adjusted freely. Users can adjust the height of the box wall and then adjust the volume of the suitcase according to the needs of storing items, so as to be suitable for the amount of stored items. At the same time, the suitcase can be adjusted to the minimum size when not in use, which is not only convenient to carry on the journey, but also can fully save storage space, and the support mechanism at the bottom of the suitcase can be adjusted according to the height of the box wall and the change of the box volume. The center of gravity changes to adjust the center of support, so that the center of support can be consistent with the center of gravity of the box, ensuring that the suitcase is placed stably and prevents it from toppling over.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of a specific embodiment of the middle telescopic box;

Fig. 3 is a structural schematic diagram of another embodiment of the middle telescopic box.

In the figure: 1—extendable pull rod, 2—middle extendable box, 2a—storage bag, 2b—box cover, 2c—middle expandable box, 2d—fixed box, 3—handle, 4—roller , 4a—roller shaft, 5—adjustable strut, 5a—supporting foot, 6—angle-wrapped connector, 7—pin shaft, 8—sewing line of support plate.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings of the description:

As shown in Figures 1 and 2, it is a trolley suitcase. Its main body is a telescopic box body 2 with adjustable peripheral wall height. The telescopic box body 2 is coordinated by a box cover 2b, a middle telescopic box body 2c and a fixed box body 2d. One side of the box cover 2b and the middle telescopic box body 2c is hingedly matched, and the other sides are connected through a zipper or a lock. The outer side of the box cover 2b is connected with a storage bag 2a for storing some small items or traveling. Items needed for the process. The middle telescopic box body 2c is connected and matched with the fixed box body 2d. In this embodiment, the middle telescopic box body 2c adopts a soft box telescopic structure with built-in movable braces. This part can be made of textiles such as nylon cloth and tendon cloth. Made of fabric, the box wall can be folded or opened freely, the inside and outside of the fixed box 2d is provided with protective and decorative layers, and the lower edge of the middle flexible box 2c is sewn with the upper edge of the protective and decorative layer arranged inside and outside the fixed box 2d Together, or with the protective and decorative layers wrapped inside and outside the fixed box 2d as an integral structure, the weight of the suitcase can be reduced, the cost can be reduced, and it is also easy to carry. The built-in movable brace of the middle stretchable box 2c adopts the structure of cloth covering the PE board, and is stitched on the inside of the middle stretchable box 2c at the position of the seam line 8 of the stretcher. With the expansion of the middle stretchable box 2c, the wall , the built-in movable brace moves up and down immediately to support the middle telescopic box 2c box wall. A telescopic pull rod 1 is arranged on the fixed box 2d, and a cover is set at the exit of the telescopic pull rod 1 on the fixed box 2d, and the exposed part of the telescopic pull rod 1 can be retracted into the fixed box 2d when it does not need to be pulled. Close the lid afterwards for an enhanced look. One side of the fixed box body 2d is connected with a carrying handle 3, which can be used as a carrying case when there are few items stored in the case, so that it is more convenient to carry. The bottom of the fixed box 2d is symmetrically provided with a pair of adjustable struts 5 that rotate with it. The adjustable struts 5 are arranged on the bottom of the fixed box 2d through the angled connectors 6, and the angled connectors 6 are fixedly connected by riveting or the like. The bottom of the box body 2d is fixed, the two inner sides of the angled connector 6 form a right angle structure, the inner end of the adjustable strut 5 is inserted into the angled connector 6 and is connected with the top angle of the angled connector 6 by the pin 7, which can be The rotation angle of the adjustable strut 5 in the wrapping angle connector 6 is 0-90°, and the outer end of the adjustable strut 5 is matched with a downwardly convex supporting foot 5a to support the box. The bottom corners of both sides of the fixed casing 2d are symmetrically provided with rollers 4, and the rollers 4 are connected to the fixed casing 2d by the roller shaft 4a, and roll forward when pulling, and serve as the supporting points of the suitcase when placed. The supporting feet 5a and the rollers 4 jointly constitute the support of the suitcase. According to the amount of stored items, the height of the middle telescopic box body 2c can be freely expanded and contracted to adapt to the stored items. The wall of the telescopic box body 2c can be arbitrarily positioned at a rotation angle of 0-90° formed by the rotation adjustable strut 5 on the inner wall of the wrap angle connector 6, so that the position of the support foot 5a is adapted to the height of the middle telescopic box body 2c , The support center formed by the support feet 5a and the rollers 4 can be easily adjusted to be consistent with the center of gravity of the suitcase, so that the suitcase can be placed stably.

As another embodiment of the present utility model, as shown in Fig. 1 and Fig. 3, the walls around the fixed box 2d are double-layered, and the walls around the flexible box 2c in the middle are plugged into the double-layered box of the fixed box 2d. The slot formed by the wall is elastically connected with the fixed box 2d. By adjusting the depth of the box wall around the middle telescopic box body 2c inserted into the slot of the fixed box body 2d box wall, the height of the box wall around the suitcase can be adjusted, thereby adjusting the size of the suitcase. The rotation adjustable strut 5 can be arbitrarily positioned at the angle of rotation of 0-90 ° formed by the inner wall of the angled connector 6, so that the position of the support foot 5a is adapted to the height of the middle telescopic box 2c, the support foot 5a, the roller 4 The formed support center can be conveniently adjusted to be consistent with the center of gravity of the suitcase, so that the suitcase can be placed stably.

Claims (7)

1. Trolley suitcase, the main body of which is a telescopic box body (2) with adjustable peripheral wall height, characterized in that the telescopic box body (2) consists of a box cover (2b), a middle telescopic box body (2c), The fixed box (2d) is formed in cooperation, the box cover (2b) is hinged with one side of the middle telescopic box (2c), the middle telescopic box (2c) is connected and matched with the fixed box (2d), and the fixed box (2d) is equipped with retractable pull rods (1), the bottom of the fixed box (2d) is symmetrically arranged with a pair of adjustable struts (5) that rotate with it, and the bottom corners of both sides are symmetrically arranged with rollers (4). 2. The trolley suitcase as claimed in claim 1, characterized in that said adjustable strut (5) is arranged at the bottom of the fixed box (2d) through an angled connector (6), and the adjustable strut (5) ) is inserted into the angle-wrapped connector (6) and rotated with the top angle of the angle-wrapped connector (6) through the pin shaft (7), and the outer end of the adjustable strut (5) is matched with a downwardly curved supporting foot (5a), the corner-wrapped connector (6) is fixedly connected to the bottom of the fixed box (2d). 3. The trolley suitcase according to claim 1, characterized in that the middle telescopic box (2c) adopts a soft box telescopic structure with built-in movable braces, and its lower edge is connected with the fixed box (2d) Seam fit on the top edge. 4. The trolley suitcase as claimed in claim 1, characterized in that the walls around the fixed box (2d) are of double-layer structure, and the walls around the flexible box (2c) in the middle are plugged into the fixed box (2d) The slot formed by the double-layer box wall is elastically connected with the fixed box body (2d). 5. The trolley suitcase according to claim 1, characterized in that a handle (3) is connected to one side of the fixed box body (2d). 6. The trolley suitcase according to claim 1, characterized in that a storage bag (2a) is connected to the outer side of the cover (2b). 7. The trolley suitcase according to claim 2, characterized in that the two inner sides of the corner-wrapped connector (6) form a right-angle structure, and the adjustable strut (5) is inside the corner-wrapped connector (6) The rotation angle is 0-90°.

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