Novel telescopic draw-bar box

Abstract

The utility model discloses a novel telescopic draw-bar box which comprises an upper box body, a middle box body and a bottom box body which are sequentially connected, flexible connecting bodies are arranged at the centers of four side surfaces of the middle box body, and the middle box body is divided into four right-angled middle box body units through the flexible connecting bodies; the cross section of each connecting body is of a folded structure, and a connecting block is arranged between every two adjacent middle box body units; compared with the prior art, the telescopic draw-bar box has the advantages that through the telescopic design of the middle box body, a user can flexibly adjust the capacity of the draw-bar box according to actual requirements, and the requirements of different travel scenes are met; when large capacity is not needed, the middle box body can be contracted, the size of the draw-bar box is reduced, the draw-bar box is convenient to store and carry, the draw-bar box is particularly suitable for the condition that the storage space is limited, the number and the positions of the connecting blocks are reasonably set, and the sliding rails are matched with the sliding blocks, so that the stability and the balance of the middle box body in the telescopic process are guaranteed, and deformation and damage of the box body are avoided.

Description

Technical Field

[0001] The utility model relates to the field of travel bags, in particular to a novel telescopic trolley case. Background Art

[0002] With the improvement of people's living standards and the increase in travel needs, trolley cases have become an indispensable item for people to travel and go on business trips. However, there are some inconveniences in the use of traditional trolley cases, such as fixed capacity and inability to flexibly adjust according to actual needs, which brings certain troubles to users. In order to solve these problems, the present invention proposes a new type of telescopic trolley case. Utility Model Content

[0003] The utility model aims to solve the above technical problems and provides a novel telescopic trolley case.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a novel telescopic trolley case, comprising an upper case, a middle case and a bottom case connected in sequence, a flexible connector is provided at the center of the four sides of the middle case, and the middle case is divided into four right-angled middle case units by the flexible connector, the cross section of the connector is a folding structure, and a connecting block is provided between two adjacent middle case units;

[0005] The connecting block comprises a base, a crossbar and a plurality of connecting rods, the crossbar is rotatably arranged on the base, the two ends of the crossbar are respectively rotatably connected to the connecting rods, the two ends of the connecting rods are rotatably connected to the support arms, one end of the support plate is an n-shaped structure, and through the rotation of the crossbar, the two support arms are close to or away from each other, and the two support arms are respectively connected to two adjacent intermediate box units;

[0006] A slide rail is arranged on the inner side of the upper box body, and sliding blocks matched with the slide rail are arranged on the two connecting blocks.

[0007] Furthermore, there are six connecting blocks, four of which are arranged on four side surfaces at one end of the middle box body, and the other two are arranged on two side surfaces at the other end.

[0008] Furthermore, when the two support arms are at their farthest distance, the cross section of the middle box becomes the largest, and the outer surfaces of the upper box, the middle box and the bottom box are all on the same plane;

[0009] When the distance between the two support arms is close, the connecting body is folded, the cross section of the middle box body becomes the smallest, and is retracted into the interior of the upper box body through the sliding block.

[0010] Furthermore, the edges of the upper box body and the middle box body are provided with openings, and the openings are provided with password locks.

[0011] Furthermore, a universal wheel is provided at the bottom of the bottom box body, and a telescopic pull rod is provided on one side of the upper box body.

[0012] The advantages of the utility model compared with the prior art are:

[0013] 1. Adjustable capacity: Through the telescopic design of the middle box, users can flexibly adjust the capacity of the suitcase according to actual needs to meet the needs of different travel scenarios.

[0014] 2. Save space: When large capacity is not needed, the middle box can be retracted to reduce the volume of the suitcase, making it easier to store and carry, especially suitable for situations where storage space is limited.

[0015] 3. Good stability: By reasonably setting the number and position of the connecting blocks, as well as the coordination of the slide rails and sliders, the stability and balance of the middle box during the expansion and contraction process are guaranteed, avoiding deformation and damage of the box.

[0016] 4. High security: The password lock set at the opening can effectively protect the safety of the items in the box and prevent others from opening the suitcase without authorization.

[0017] 5. Easy to move: The universal wheels at the bottom and the telescopic pull rod on the upper box body make the trolley case easier and more convenient to move, reducing the burden on the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the new telescopic trolley case of the utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure of the new telescopic trolley case of the utility model. Figure 2 .

[0020] Figure 3 It is a structural schematic diagram of the novel telescopic trolley case of the utility model in a retracted state.

[0021] Figure 4 The utility model is a schematic diagram of the structure of the upper box body of the new telescopic trolley case.

[0022] Figure 5 It is a structural schematic diagram of the middle box body of the new telescopic trolley case of the utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the connecting block of the new telescopic trolley case of the utility model.

[0024] As shown in the figure: 1-upper box, 101-slide rail, 102-slider, 2-middle box, 201-middle box unit, 3-bottom box, 4-connector, 5-connecting block, 501-base, 502-cross bar, 503-connecting rod, 504-support arm, 6-opening, 7-combination lock, 8-universal wheel, 9-telescopic pull rod. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The working principle of this utility model:

[0028] like Figure 1 As shown, the novel telescopic trolley case of the present invention is mainly composed of an upper box body 1, a middle box body 2 and a bottom box body 3. The upper box body 1 is located at the top, the bottom box body 3 is located at the bottom, and the middle box body 2 is located between the upper box body 1 and the bottom box body 3.

[0029] Flexible connectors 4 are arranged at the center of the four sides of the intermediate box 2. These connectors 4 evenly divide the intermediate box 2 into four right-angled intermediate box units 201 (such as Figure 5 The cross section of the connecting body 4 is a folding structure, which enables the middle box 2 to be flexibly folded and unfolded during the telescopic process.

[0030] Adjacent intermediate box units 201 are connected and supported by connecting blocks 5. The structure of the connecting blocks 5 is as follows: Figure 3 As shown, it includes a base 501, a crossbar 502 and a plurality of connecting rods 503. The crossbar 502 is rotatably arranged on the base 501, and the two ends of the crossbar 502 are respectively rotatably connected to the connecting rod 503, and the two ends of the connecting rod 503 are rotatably connected to the support arm 504. One end of the support arm 504 is an n-shaped structure, and the two support arms 504 can be moved closer or farther away through the rotation of the crossbar 502. When the two support arms 504 are close to each other, the middle box unit 201 will be driven to move closer to each other, so that the middle box 2 will shrink; when the two support arms 504 are away from each other, the middle box unit 201 will be unfolded and the middle box 2 will expand.

[0031] A slide rail 101 is provided on the inner side of the upper box body 1, wherein two connecting blocks 5 are provided with sliders 102 (such as Figure 5 The sliding of the slider 102 on the slide rail 101 enables the telescopic movement of the middle box 2 relative to the upper box 1.

[0032] In order to ensure the stability and balance of the expansion and contraction process of the middle box body 2, a total of six connecting blocks 5 are provided, wherein four connecting blocks 5 are evenly distributed on the four sides of one end of the middle box body 2, and the other two connecting blocks 5 are arranged on the two sides of the other end of the middle box body 2.

[0033] When the two support arms 504 are farthest apart, the cross-section of the middle box 2 reaches its maximum. At this time, the outer surfaces of the upper box 1, the middle box 2 and the bottom box 3 are on the same plane, and the entire trolley case presents a maximum capacity state, which can meet the user's needs for storing more items.

[0034] When the distance between the two support arms 504 is close, the connector 4 begins to fold, the cross-section of the middle box 2 gradually becomes smaller, and through the cooperation of the slide rail 101 and the slider 102, the middle box 2 can be smoothly retracted into the interior of the upper box 1, thereby reducing the overall volume of the suitcase for easy carrying and storage.

[0035] In order to facilitate users to store and take out articles, openings 6 are provided at the edges of the upper box body 1 and the middle box body 2, and password locks 7 are installed at the openings 6 to ensure the safety of the articles.

[0036] Universal wheels 8 are provided at the bottom of the bottom box body 3 to facilitate the movement of the trolley case. A telescopic pull rod 9 is provided on one side of the upper box body 1, and the user can easily pull the trolley case through the telescopic pull rod 9.

[0037] Specific usage:

[0038] (1) Initial state: When not in use, the suitcase is in a collapsed state. At this time, the four right-angled middle box units of the middle box are folded through the connector, so that the cross-section of the middle box becomes smaller, and it is retracted into the interior of the upper box through the slide rail and the slider. The two support arms are close to each other, and the outer surfaces of the upper box, the middle box and the bottom box are not on the same plane.

[0039] (2) Preparation for opening: When you need to use the suitcase, first check whether the combination lock is locked. If it is locked, enter the correct combination to open it.

[0040] (3) Extending the box: If you want to fit more items or increase the box space, you can extend the box. Specifically, push the sliders on the two connecting blocks inside the upper box along the slide rails on the inner side of the upper box in the direction away from the upper box. During the pushing process, the crossbar rotates, driving the connecting rods at both ends to move, so that the two support arms gradually move away from each other. As the support arms move away, the connector gradually unfolds, and the cross section of the middle box gradually increases. Continue pushing until the two support arms are farthest apart, at which point the cross section of the middle box becomes the largest, and the outer surfaces of the upper box, middle box, and bottom box are all on the same plane.

[0041] (4) Place items: Open the opening and place items in the upper box, middle box, and bottom box. Place items in a reasonable manner to make full use of the space and avoid overloading.

[0042] (5) Close the box: After placing the items, close the opening and lock it with a combination lock to protect the items in the box.

[0043] (6) Pull or push the suitcase: The retractable pull rod on one side of the upper case can be used to pull the suitcase at a certain angle. The universal wheels on the bottom of the lower case allow the suitcase to flexibly change its direction of movement.

[0044] (7) Folding the box: To reduce the size of the suitcase for easier storage or carrying, first make sure the items in the box have been taken out or arranged. Then follow the reverse steps of extending the box, push the slider inward along the slide rail, bring the support arms closer, fold the connector, and retract the middle box into the upper box.

[0045] During use, you should also pay attention to the following points: avoid excessive stretching or squeezing of the box to prevent damage to components such as connectors and connecting blocks; pay attention to the use and protection of the combination lock to prevent password leakage; reasonably adjust the size of the box according to actual conditions to meet the needs of the number of luggage and carrying convenience; during the pulling process, be careful to avoid collision with sharp objects to avoid damage to the trolley case; regularly check the flexibility and stability of components such as universal wheels and telescopic pull rods, and repair or replace them in time if there are any problems.

[0046] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. New telescopic trolley case, characterized by: The invention comprises an upper box (1), a middle box (2) and a bottom box (3) which are connected in sequence, wherein a flexible connector (4) is provided at the center of four side surfaces of the middle box (2), and the middle box (2) is divided into four right-angled middle box units (201) by the flexible connector (4), wherein the cross section of the connector (4) is a folded structure, and a connecting block (5) is provided between two adjacent middle box units (201); The connecting block (5) comprises a base (501), a cross bar (502) and a plurality of connecting rods (503); the cross bar (502) is rotatably arranged on the base (501); the two ends of the cross bar (502) are respectively rotatably connected to the connecting rod (503); the two ends of the connecting rod (503) are rotatably connected to the supporting arm (504); one end of the supporting arm (504) is an n-shaped structure; and through the rotation of the cross bar (502), the two supporting arms (504) are moved closer or farther away, and the two supporting arms (504) are respectively connected to two adjacent intermediate box units (201); The inner side of the upper box body (1) is provided with a slide rail (101), wherein two connecting blocks (5) are provided with sliding blocks (102) matching with the slide rail (101).

2. The new telescopic trolley case according to claim 1 is characterized in that: There are six connecting blocks (5), four of which are arranged on four side surfaces at one end of the middle box body (2), and the other two connecting blocks (5) are arranged on two side surfaces at the other end.

3. The new telescopic trolley case according to claim 1 is characterized in that: When the two support arms (504) are at their farthest distance, the cross section of the middle box (2) becomes the largest, and the outer surfaces of the upper box (1), the middle box (2) and the bottom box (3) are all on the same plane; When the distance between the two support arms (504) is close, the connecting body (4) is folded, the cross section of the middle box (2) becomes the smallest, and is retracted into the interior of the upper box (1) through the slide rail (101) and the slider (102).

4. The new telescopic trolley case according to claim 3 is characterized in that: The edges of the upper box body (1) and the middle box body (2) are provided with openings (6), and the openings (6) are provided with password locks (7).

5. The new telescopic trolley case according to claim 1 is characterized in that: The bottom of the bottom box body (3) is provided with a universal wheel (8), and one side of the upper box body (1) is provided with a telescopic pull rod (9).

Images