Trolley case facilitating stair climbing

Abstract

The utility model discloses a trolley case convenient to go up and down stairs, and its technical scheme main points are: including box, one side fixed mounting of box has the connecting block, both sides fixed mounting of connecting block has the installation pipe, the inside of installation pipe is provided with the installation rod, the installation rod is by cylinder part and disc part and is composed, the outer wall surface of installation rod is connected with the connecting pipe, one end fixed mounting of connecting pipe has the first mounting panel, the one side of first mounting panel is provided with the second mounting panel, first mounting panel and second mounting panel are all cross type structure, one side fixed mounting of first mounting panel has a plurality of fixed axles, first mounting panel and second mounting panel are fixedly installed together through a plurality of fixed axles, and the outer wall surface of fixed axle is equipped with the gyro wheel, through the design of first mounting panel and second mounting panel, the cross design of first mounting panel and second mounting panel, and any two adjacent branches are a group.

Description

Technical Field

[0001] This utility model relates to the field of trolley case technology, specifically to a trolley case that is convenient for going up and down stairs. Background Technology

[0002] Rolling suitcases play an important role in daily life, especially during travel. As an essential item, they help users carry clothes and other items, and reduce the burden on users when walking on flat surfaces. However, when using a rolling suitcase to walk up and down stairs, it becomes the biggest burden. Users can only lift the suitcase by force and cannot continue to drag it, causing inconvenience when going up and down stairs.

[0003] A rolling suitcase device with publication number CN219813390U that can easily move up and down stairs has revealed the following defects during use:

[0004] This utility model's technical solution utilizes a sliding belt structure composed of a bearing seat, roller, and sliding belt. The sliding belt contacts the stair treads, allowing users to easily move the suitcase up and down stairs by simply contacting the sliding belt with the treads and gripping the handle. The lifting lever separates or engages the ball and hemispherical groove, allowing users to adjust the handle's force angle according to their preferred method. This facilitates pulling the suitcase up and down stairs. However, in practical use, simply adjusting the force direction doesn't solve the problem of the suitcase getting stuck when there's a significant height difference between steps. Therefore, we propose a suitcase design that facilitates moving up and down stairs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a trolley case that facilitates going up and down stairs. It solves the problem that, even with adjusting the direction of force, the trolley case may still get stuck and unable to go up or down when there is a large height difference between the steps.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A trolley case for easy access to stairs includes a case body. A connecting block is fixedly installed on one side of the case body. Mounting tubes are fixedly installed on both sides of the connecting block. An mounting rod is installed inside the mounting tube. The mounting rod consists of a cylindrical part and a disc part. The connecting tube is snapped onto the outer wall of the mounting rod. A first mounting plate is fixedly installed at one end of the connecting tube. A second mounting plate is provided on one side of the first mounting plate. Both the first and second mounting plates have a cross-shaped structure. Several fixing shafts are fixedly installed on one side of the first mounting plate. The first and second mounting plates are fixedly installed together by the several fixing shafts. Rollers are sleeved on the outer wall of the fixing shafts.

[0008] Preferably, the outer wall of the mounting tube is provided with a slot, and the outer wall of the mounting rod is fixedly installed with a snap-fit ​​block. The mounting tube and the mounting rod are snapped together through the slot and the snap-fit ​​block.

[0009] Preferably, two square tubes are fixedly installed on one side of the box, a connecting plate is fixedly installed on one side of the box, and the two ends of the connecting plate are respectively fixedly installed together with the two square tubes. Storage bags are fixedly installed on both sides of the box.

[0010] Preferably, a pull rod is sleeved inside the square tube, a handle is provided on one side of the box, the two ends of the handle are fixedly installed together with the two pull rods, and a rubber sleeve is sleeved on the outer wall of the handle.

[0011] Preferably, a first sliding hole is provided on one side of the pull rod, and a second sliding hole is provided on one side of the square tube, with a locking block sleeved inside the first sliding hole.

[0012] Preferably, the locking block consists of a cylindrical part and a disc part, and a spring is sleeved on the outer wall of the cylindrical part of the locking block. The spring is limited by the disc part and the inner wall of the first sliding hole.

[0013] In summary, the present invention has the following main advantages:

[0014] By setting a first mounting plate and designing a second mounting plate with a cross-shaped design, any two adjacent branches form a group. During normal travel, any group of branches of the first and second mounting plates, as well as the rollers mounted on them, are in contact with the ground, ensuring the normal dragging of the device. When encountering stairs, since the connecting pipe and mounting rod are snapped together, the first and second mounting plates themselves can rotate. When going upstairs, the first and second mounting plates rotate, switching different branches to contact the ground, thus enabling the dragging of the suitcase upstairs and providing convenience for the use of the device.

[0015] By incorporating a slot and a snap-fit ​​design, the installation tube and rod can be easily disassembled and installed at any time while ensuring a stable connection. This allows users to easily replace the wheels for going upstairs with regular wheels depending on the actual road conditions, increasing the device's portability while avoiding any adverse effects on normal use caused by making it easier to go upstairs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the pull rod and locking block separation structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the separation structure of the connecting block and the first mounting plate of this utility model.

[0020] Reference numerals: 1. Box body; 2. Connecting block; 3. Mounting tube; 4. Mounting rod; 5. Connecting tube; 6. First mounting plate; 7. Second mounting plate; 8. Fixed shaft; 9. Roller; 10. Slot; 11. Snap-fit ​​block; 12. Square tube; 13. Connecting plate; 14. Storage bag; 15. Pull rod; 16. Handle; 17. Rubber sleeve; 18. Spring; 19. First sliding hole; 20. Second sliding hole; 21. Snap-fit ​​block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] refer to Figures 1-4A trolley case for easy access to stairs includes a case body 1. A connecting block 2 is fixedly installed on one side of the case body 1. Mounting tubes 3 are fixedly installed on both sides of the connecting block 2. An mounting rod 4 is installed inside the mounting tube 3. The mounting rod 4 consists of a cylindrical part and a disc part. A connecting tube 5 is snapped onto the outer wall of the mounting rod 4. A first mounting plate 6 is fixedly installed at one end of the connecting tube 5. A second mounting plate 7 is provided on one side of the first mounting plate 6. Both the first mounting plate 6 and the second mounting plate 7 have a cross-shaped structure. Several fixing shafts 8 are fixedly installed on one side of the first mounting plate 6. The first mounting plate 6 and the second mounting plate 7 are fixedly installed together by the several fixing shafts 8. The outer wall of the fixing shafts 8 is sleeved with... The roller 9, through the design of the first mounting plate 6 and the second mounting plate 7, with the cross-shaped design of the first mounting plate 6 and the second mounting plate 7, with any two adjacent branches forming a group, ensures normal dragging of the device during normal travel. When encountering stairs, since the connecting pipe 5 and the mounting rod 4 are snapped together, the first mounting plate 6 and the second mounting plate 7 can rotate. When going upstairs, the first mounting plate 6 and the second mounting plate 7 rotate, switching different branches to contact the ground, thus realizing the upstairs operation of the suitcase during dragging, providing convenience for the use of the device.

[0023] The outer wall of the mounting tube 3 is provided with a slot 10, and the outer wall of the mounting rod 4 is fixedly installed with a snap-fit ​​block 11. The mounting tube 3 and the mounting rod 4 are snapped together by the slot 10 and the snap-fit ​​block 11. The design of the slot 10 and the snap-fit ​​block 11 allows for easy disassembly and installation of the mounting tube 3 and the mounting rod 4 at any time while ensuring a stable connection. This allows users to change the wheels for going upstairs and the wheels for ordinary use according to the actual road conditions, increasing the portability of the device and avoiding any adverse effects on normal use caused by making it easier to go upstairs.

[0024] Two square tubes 12 are fixedly installed on one side of the box body 1, and a connecting plate 13 is fixedly installed on one side of the box body 1. The two ends of the connecting plate 13 are fixedly installed together with the two square tubes 12 respectively. Storage bags 14 are fixedly installed on both sides of the box body 1. Through the design of the storage bags 14, spare parts of the device itself, such as ordinary wheels, can be stored to avoid occupying the storage space of the device itself and causing inconvenience to the user.

[0025] A pull rod 15 is fitted inside the square tube 12. The design of the pull rod 15 allows the length of the pull rod 15 to be adjusted at any time according to the different body sizes of the user, ensuring the best user experience. A handle 16 is provided on one side of the box body 1. The two ends of the handle 16 are fixedly installed together with the two pull rods 15. A rubber sleeve 17 is fitted on the outer wall of the handle 16. The design of the handle 16 and the rubber sleeve 17 can increase the friction of the grip while making it easy for the user to hold, further preventing the internal stored items from being shaken and damaged.

[0026] A first sliding hole 19 is provided on one side of the pull rod 15, and a second sliding hole 20 is provided on one side of the square tube 12. A locking block 21 is fitted inside the first sliding hole 19. Through the design of the locking block 21, when the first sliding hole 19 and the second sliding hole 20 are aligned, the locking block 21 enters the second sliding hole 20, which limits the relative position of the pull rod 15 and the square tube 12, ensuring that the user does not need to repeatedly pull the pull rod 15 to adjust the relative position of the square tube 12 during use.

[0027] The locking block 21 consists of a cylindrical part and a disc part. A spring 18 is fitted on the outer wall of the cylindrical part of the locking block 21. The spring 18 limits the position of the locking block 21 through the disc part and the inner wall of the first sliding hole 19. The design of the spring 18 can limit the position of the locking block 21, ensuring that when the first sliding hole 19 and the second sliding hole 20 are aligned, the locking block 21 can enter the interior of the second sliding hole 20 by the elastic force of the spring 18, thereby limiting the square tube 12 and the pull rod 15. When the square tube 12 and the pull rod 15 are in contact and limited, it is only necessary to press down the pull rod 15 to make the locking block 21 return to the interior of the first sliding hole 19.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A trolley case for ease of negotiating stairs, comprising a case body (1), characterised in that, A connecting block (2) is fixedly installed on one side of the housing (1). An installation tube (3) is fixedly installed on both sides of the connecting block (2). An installation rod (4) is provided inside the installation tube (3). The installation rod (4) is composed of a cylindrical part and a disc part. A connecting tube (5) is snapped onto the outer wall of the installation rod (4). A first installation plate (6) is fixedly installed at one end of the connecting tube (5). A second installation plate (7) is provided on one side of the first installation plate (6). Both the first installation plate (6) and the second installation plate (7) are cross-shaped structures. Several fixed shafts (8) are fixedly installed on one side of the first installation plate (6). The first installation plate (6) and the second installation plate (7) are fixedly installed together by several fixed shafts (8). Rollers (9) are sleeved on the outer wall of the fixed shafts (8).

2. The wheeled luggage of claim 1, wherein, The outer wall of the mounting tube (3) is provided with a slot (10), and the outer wall of the mounting rod (4) is fixedly installed with a snap-fit ​​block (11). The mounting tube (3) and the mounting rod (4) are snapped together by the slot (10) and the snap-fit ​​block (11).

3. The wheeled luggage of claim 1, wherein, Two square tubes (12) are fixedly installed on one side of the box (1), and a connecting plate (13) is fixedly installed on one side of the box (1). The two ends of the connecting plate (13) are fixedly installed together with the two square tubes (12) respectively. Storage bags (14) are fixedly installed on both sides of the box (1).

4. The wheeled luggage of claim 3, wherein, The inside of the square tube (12) is fitted with a pull rod (15), and a handle (16) is provided on one side of the box body (1). The two ends of the handle (16) and the two pull rods (15) are fixedly installed together, and a rubber sleeve (17) is fitted on the outer wall of the handle (16).

5. The wheeled luggage of claim 4, wherein, The pull rod (15) has a first sliding hole (19) on one side, and the square tube (12) has a second sliding hole (20) on one side. A locking block (21) is fitted inside the first sliding hole (19).

6. The wheeled luggage of claim 5, wherein, The locking block (21) consists of a cylindrical part and a disc part. A spring (18) is sleeved on the outer wall of the cylindrical part of the locking block (21). The spring (18) is limited by the disc part and the inner wall of the first sliding hole (19).

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