Luggage case with improved antiskid performance
By introducing a support chassis and anti-slip pads into the suitcase, combined with the U-shaped pull rod and telescopic rod design, the problem of conventional suitcase sliding and tilting while riding is solved, significantly improving friction, ensuring that the suitcase is on bumpy roads stability and safety.
Patent Information
- Application Number
- CN202420049490.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-01-09
AI Technical Summary
Conventional suitcases slide forward due to inertia when riding, resulting in deformation and damage and potential danger. The existing anti-slip measures are insufficient to effectively deal with bumpy roads.
A suitcase structure including a support chassis and anti-slip pad is designed. Through the cooperation of the U-shaped pull rod, telescopic rod and limit plate, the friction between the suitcase and the ground is increased, and the spring and anti-slip pad are used to maintain during bumps. Stable contact.
It effectively enhances the stability and anti-slip performance of the suitcase in a shaking environment, prevents gliding and dumping, and reduces the risk of deformation and damage.
Smart Images
Figure CN222303277U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of luggage cases, in particular to a luggage case with improved anti-slip performance. Background Art
[0002] Suitcases with improved anti-slip performance are made of special materials or designs. These suitcases usually have anti-slip bottoms or are made of anti-slip materials to make them more stable when walking. Some suitcases also use tire-type pulley designs, which have better anti-slip performance and can move smoothly on uneven surfaces. In addition, some high-end suitcases are also equipped with a self-stabilizing system, which can adjust the center of gravity of the suitcase in real time according to the posture and center of gravity changes during walking, providing better stability and anti-slip performance.
[0003] When users take the bus or subway, the anti-skid function of conventional suitcases is mainly achieved by limiting the rotation of the four universal wheels at the bottom. However, since the contact area between the four universal wheels and the road surface is small, the friction between the suitcase and the ground is insufficient. As a result, every time the vehicle brakes or passes over a bumpy road, the conventional suitcase will slide forward or even tip over due to inertia, causing the suitcase to hit hard objects and thus deform and damage. The sliding suitcase may also hit passers-by and cause injuries.
[0004] Therefore, in view of the above problems, a luggage case with improved anti-slip performance is proposed. Utility Model Content
[0005] The utility model aims to provide a luggage box with improved anti-skid performance, so as to solve the problem that when a user is riding in a vehicle and the vehicle brakes or passes through a bumpy road, the luggage box slides or tilts forward due to inertia, causing the luggage box to bump and thus deform and be damaged.
[0006] In order to achieve the above object, the utility model provides the following technical solutions:
[0007] A luggage case with improved anti-skid performance comprises a luggage case body, a pull rod body and a universal wheel, wherein the pull rod body is installed on the outside of the luggage case body, the lower end of the pull rod body is fixedly connected to a supporting chassis body for increasing friction between the luggage case and the ground, and the lower end of the luggage case body is fixedly connected to the universal wheel;
[0008] The luggage case body comprises a box body, a partition is provided in the middle of the box body, and first sliding grooves are provided on both sides of the partition;
[0009] The pull rod body comprises a U-shaped pull rod, the inner side of the U-shaped pull rod is fixedly connected with a first protrusion, the lower end of the U-shaped pull rod is slidably connected with a telescopic rod upper cover, the lower end of the telescopic rod upper cover is fixedly connected with a telescopic rod shell, a second slide groove is provided inside the telescopic rod shell, a limit plate is installed inside the telescopic rod shell, the outer side of the limit plate is fixedly connected with a second protrusion, the lower end of the limit plate is fixedly connected with a spring, the lower end of the spring is fixedly connected with the telescopic rod, and the outer sides of the telescopic rod are respectively fixedly connected with a third protrusion and a fourth protrusion;
[0010] The supporting chassis body comprises a chassis, a groove is provided at the upper end of the chassis, a connecting block is fixedly connected inside the groove, and an anti-skid pad is fixedly connected at the lower end of the chassis.
[0011] Preferably, the first slide groove is internally slidably connected with a first protrusion and a fourth protrusion, the cross-sections of the first protrusion and the fourth protrusion are of the same size, and the first protrusion and the fourth protrusion are symmetrically installed on the inner sides of the two straight rods of the U-shaped pull rod.
[0012] Preferably, the limiting plate is slidably connected to the second sliding groove via a second protrusion, the telescopic rod is slidably connected to the second sliding groove via a third protrusion, and the cross-sectional area of the second protrusion is half that of the cross-sectional area of the third protrusion.
[0013] Preferably, a U-shaped pull rod is fixedly connected to the upper end of the limit plate, and neither the limit plate nor the telescopic rod can pass through the hole opened at the upper end of the telescopic rod upper cover. The upper limit position of the limit plate sliding upward is the installation position of the lower end of the telescopic rod upper cover.
[0014] Preferably, a groove is slidably connected to the lower end of the telescopic rod housing, a connecting block is fixedly connected to the lower end of the telescopic rod, and V-shaped anti-skid grooves are evenly formed on the surface of the anti-skid pad.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] In the utility model, by providing the limit plate, spring and telescopic rod, when the U-shaped pull rod is in the retracted state, the telescopic rod can be extended a distance below the box body by squeezing the lower end of the U-shaped pull rod, so as to lift the box body, thereby facilitating the installation of a supporting structure under the box body. At the same time, by providing the chassis and anti-skid pad, the box body can be lifted up with the help of the chassis, and the anti-skid pad provided at the bottom of the chassis can increase the friction between the suitcase and the ground, so that the suitcase can be placed more stably in a shaking environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2This is a schematic diagram of the main structure of the luggage case of the utility model;
[0019] Figure 3 This is a schematic diagram of the main structure of the pull rod of the utility model;
[0020] Figure 4 This is a schematic diagram of the explosion structure inside the shell of the telescopic rod of the utility model;
[0021] Figure 5 This is a schematic diagram of the main structure of the supporting chassis of the utility model.
[0022] In the figure: 1, luggage case body; 11, case body; 12, partition; 13, first slide;
[0023] 2. pull rod body; 21. U-shaped pull rod; 22. first protrusion; 23. telescopic rod upper cover; 24. telescopic rod housing; 25. second slide groove; 26. limit plate; 27. second protrusion; 28. spring; 29. telescopic rod; 210. third protrusion; 211. fourth protrusion;
[0024] 3. Support chassis body; 31. Chassis; 32. Groove; 33. Connecting block; 34. Anti-skid pad;
[0025] 4. Universal wheel. DETAILED DESCRIPTION
[0026] 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.
[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0028] See also Figure 1-5 , the utility model provides a technical solution:
[0029] A luggage case with improved anti-skid performance comprises a luggage case body 1, a pull rod body 2 and a universal wheel 4, wherein the pull rod body 2 is installed on the outer side of the luggage case body 1, a supporting chassis body 3 for increasing friction between the luggage case and the ground is fixedly connected to the lower end of the pull rod body 2, and the universal wheel 4 is fixedly connected to the lower end of the luggage case body 1;
[0030] The luggage case body 1 comprises a box body 11, a partition 12 is provided in the middle of the box body 11, and first slide grooves 13 are provided on both sides of the partition 12;
[0031] The pull rod body 2 includes a U-shaped pull rod 21, the inner side of which is fixedly connected with a first protrusion 22, the lower end of the U-shaped pull rod 21 is slidably connected with a telescopic rod upper cover 23, the lower end of the telescopic rod upper cover 23 is fixedly connected with a telescopic rod housing 24, a second slide groove 25 is provided inside the telescopic rod housing 24, a limit plate 26 is installed inside the telescopic rod housing 24, a second protrusion 27 is fixedly connected to the outer side of the limit plate 26, a spring 28 is fixedly connected to the lower end of the limit plate 26, a telescopic rod 29 is fixedly connected to the lower end of the spring 28, and a third protrusion 210 and a fourth protrusion 211 are respectively fixedly connected to the outer side of the telescopic rod 29;
[0032] The supporting chassis body 3 comprises a chassis 31 . A groove 32 is formed at the upper end of the chassis 31 . A connecting block 33 is fixedly connected inside the groove 32 . An anti-skid pad 34 is fixedly connected at the lower end of the chassis 31 .
[0033] Specific as Figure 2 and 4 As shown, through the provision of the first slide groove 13 and the limit plate 26, the first slide groove 13 is internally slidably connected with the first protrusion 22 and the fourth protrusion 211, the cross-sections of the first protrusion 22 and the fourth protrusion 211 are of the same size, and the first protrusion 22 and the fourth protrusion 211 are symmetrically installed on the inner sides of the two straight rods of the U-shaped pull rod 21, which is convenient for the extension and retraction of the U-shaped pull rod 21, and also convenient for the telescopic rod 29 to slide alone inside the first slide groove 13; the limit plate 26 is slidably connected with the second slide groove 25 through the second protrusion 27, and the telescopic rod 29 is slidably connected to the second slide groove 25 through the third protrusion 210, and the cross-sectional area of the second protrusion 27 is half that of the cross-sectional area of the third protrusion 210, so that the limit plate 26 can slide more stably inside the telescopic rod housing 24 to prevent the limit plate 26 from tilting and causing jamming.
[0034] Specific as Figure 4 and 5As shown, through the provision of the telescopic rod 29 and the anti-skid pad 34, the upper end of the limit plate 26 is fixedly connected with the U-shaped pull rod 21, and the limit plate 26 and the telescopic rod 29 cannot pass through the hole opened at the upper end of the telescopic rod upper cover 23, and the upper limit position of the upward sliding of the limit plate 26 is the installation position of the lower end of the telescopic rod upper cover 23, which is convenient for limiting the limit plate 26 and preventing the limit plate 26 from sliding out from the top of the telescopic rod upper cover 23; the lower end of the telescopic rod housing 24 is slidably connected with a groove 32, and the lower end of the telescopic rod 29 is fixedly connected with a connecting block 33, and the surface of the anti-skid pad 34 is evenly provided with V-shaped anti-skid grooves, which is convenient for increasing the friction between the ground and the supporting chassis body 3, so that the suitcase is firmly stationary on the ground.
[0035] Working process: when in use, when the U-shaped pull rod 21 is pulled out of the box body, the upper end of the supporting chassis body 3 is in close contact with the luggage case body 1, the anti-skid pad 34 is away from the ground, the upper end of the limit plate 26 is in close contact with the lower end of the telescopic rod upper cover 23 under the pressure of the spring 28, the lower end of the telescopic rod housing 24 is inserted into the groove 32, and the telescopic rod 29 is in the telescopic rod housing 24. At this time, when the luggage case is pulled forward, the U-shaped pull rod 21 will not be pulled out from the first slide groove 13 due to the limit of the limit plate 26, which is convenient for use;
[0036] When the user takes a bus or subway, he needs to keep the suitcase still on the ground. At this time, the U-shaped pull rod 21 is pressed downward, so that the lower end of the pull rod horizontally installed on the U-shaped pull rod 21 is close to the partition 12, and the lower end of the U-shaped pull rod 21 pushes the limit plate 26 downward, so that the upper end of the limit plate 26 is separated from the lower end of the telescopic rod upper cover 23, and the limit plate 26 squeezes the spring 28 to move downward, driving the telescopic rod 29 to slide downward, and the lower end of the telescopic rod housing 24 is separated from the inside of the groove 32, and the telescopic rod 29 extends from the lower end of the telescopic rod housing 24. With the squeezing of the spring 28 and the extension of the telescopic rod 29, the lower surface of the supporting chassis body 3 is closely attached to the ground, and the anti-skid pad 34 installed at the lower end of the supporting chassis body 3 increases the contact area between the ground and the suitcase, thereby increasing the friction between the ground and the suitcase, so that the suitcase is firmly stationary on the ground, and because of the squeezing of the spring 28, the lower end of the supporting chassis body 3 will not rebound after being attached to the ground.
[0037] Although the 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 luggage case with improved anti-slip performance, comprising a luggage case body (1), a pull rod body (2) and universal wheels (4), characterized in that: A pull rod body (2) is installed on the outside of the luggage case body (1); the lower end of the pull rod body (2) is fixedly connected to a supporting chassis body (3) for increasing the friction between the luggage case and the ground; and the lower end of the luggage case body (1) is fixedly connected to a universal wheel (4); The luggage case body (1) comprises a case body (11), a partition (12) is provided in the middle of the case body (11), and first slide grooves (13) are provided on both sides of the partition (12); The pull rod body (2) comprises a U-shaped pull rod (21), the inner side of which is fixedly connected with a first protrusion (22), the lower end of which is slidably connected with a telescopic rod upper cover (23), the lower end of which is fixedly connected with a telescopic rod outer shell (24), the interior of which is provided with a second sliding groove (25), the interior of which is provided with a limit plate (26), the outer side of which is fixedly connected with a second protrusion (27), the lower end of which is fixedly connected with a spring (28), the lower end of which is fixedly connected with a telescopic rod (29), the outer side of which is fixedly connected with a third protrusion (210) and a fourth protrusion (211); The supporting chassis body (3) comprises a chassis (31), the upper end of the chassis (31) is provided with a groove (32), the interior of the groove (32) is fixedly connected with a connecting block (33), and the lower end of the chassis (31) is fixedly connected with an anti-slip pad (34).
2. The luggage case with improved anti-slip performance according to claim 1, characterized in that: The first slide groove (13) is internally slidably connected with a first protrusion (22) and a fourth protrusion (211); the cross-sections of the first protrusion (22) and the fourth protrusion (211) are of the same size, and the first protrusion (22) and the fourth protrusion (211) are symmetrically mounted on the inner sides of the two straight rods of the U-shaped pull rod (21).
3. The luggage case with improved anti-slip performance according to claim 1, characterized in that: The limiting plate (26) is slidably connected to the second slide groove (25) via a second protrusion (27), the telescopic rod (29) is slidably connected to the second slide groove (25) via a third protrusion (210), and the cross-sectional area of the second protrusion (27) is half that of the cross-sectional area of the third protrusion (210).
4. The luggage case with improved anti-slip performance according to claim 1, characterized in that: The upper end of the limit plate (26) is fixedly connected to a U-shaped pull rod (21); the limit plate (26) and the telescopic rod (29) cannot pass through the hole opened at the upper end of the telescopic rod upper cover (23); the upper limit position of the limit plate (26) sliding upward is the installation position of the lower end of the telescopic rod upper cover (23).
5. The luggage case with improved anti-slip performance according to claim 1, characterized in that: The lower end of the telescopic rod housing (24) is slidably connected with a groove (32), the lower end of the telescopic rod (29) is fixedly connected with a connecting block (33), and the surface of the anti-skid pad (34) is evenly provided with V-shaped anti-skid grooves.