Luggage wheel accessory convenient to replace

Abstract

The utility model discloses a luggage wheel accessory convenient to replace, which relates to the technical field of luggage wheel accessories and comprises a draw-bar box and a moving wheel fixing device. Four mounting grooves are formed in the bottom of the draw-bar box, cylindrical sleeves are fixedly connected to the interiors of the four mounting grooves, supporting rods are slidably mounted in the cylindrical sleeves, moving wheels are rotatably mounted at the lower ends of the supporting rods, and sliding grooves are formed in the supporting rods; each moving wheel fixing device comprises two pressing blocks, a spring, two connecting plates, two cylindrical blocks and two rolling balls, the two pressing blocks are slidably connected to the interiors of the sliding grooves, the springs are fixedly connected to the inner sides of the two pressing blocks, the two connecting plates are fixedly connected to the tops of the two pressing blocks correspondingly, the two cylindrical blocks are slidably connected to the interiors of the supporting rods correspondingly, and the rolling balls are fixedly connected to the interiors of the supporting rods correspondingly. And the moving wheels are installed and fixed in the mode that the two rolling balls are clamped into the annular grooves, a user can conveniently disassemble and replace the moving wheels, and the installing process of the moving wheels is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage wheel accessories, in particular to a luggage wheel accessory which is easy to replace. Background Art

[0002] With the continuous improvement of people's living and consumption levels, various types of luggage have become indispensable accessories around people. People require luggage products to be not only practical, but also decorative. According to the changes in consumer tastes, the materials of luggage are more diversified. Leather, PU, polyester, canvas, cotton and linen and other textures of luggage lead the fashion trend. At the same time, in an era that increasingly flaunts individuality, various styles such as simplicity, retro, and cartoon also cater to the needs of fashion people to express their individuality from different aspects.

[0003] A trolley case is a suitcase with a handle and wheels. It is widely used because of its convenience. At the same time, trolley cases are divided into single-tube trolley cases and double-tube trolley cases because they have a trolley. The tubes of the trolley cases are also divided into square tubes and round tubes, which make it easier to drag the suitcase while walking. Trolley cases are generally equipped with rollers to facilitate the movement of the trolley cases.

[0004] When using an existing trolley case, it is necessary to use the four rollers at the bottom to roll on the ground. Since the rollers are made of plastic, they will be damaged after long-term use. Since the rollers are usually fixed to the bottom of the trolley case by gluing, it is inconvenient for users to disassemble and replace the rollers. If they are disassembled forcibly, it is easy to damage the rollers, and it is inconvenient for users to install them, which makes it very laborious to replace the rollers, affecting the convenience of using the trolley case. Utility Model Content

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a luggage wheel accessory that is easy to replace, which can solve the problem that the rollers are usually fixed to the bottom of the trolley case by gluing, which makes it inconvenient for users to disassemble and replace the rollers. If the rollers are disassembled by force, it is easy to damage the rollers and it is inconvenient for users to install them, which makes the replacement of the rollers very labor-intensive and affects the convenience of using the trolley case.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a luggage wheel accessory that is easy to replace, including a trolley case and a mobile wheel fixing device; four mounting grooves are provided at the bottom of the trolley case, and cylindrical sleeves are fixedly connected to the inside of the four mounting grooves, a support rod is slidably installed inside the cylindrical sleeve, and a mobile wheel is rotatably installed at the lower end of the support rod, and a slide groove is provided inside the support rod; the mobile wheel fixing device includes two pressure blocks, a spring, two connecting plates, two cylindrical blocks and two rolling balls, the two pressure blocks are both slidably connected to the inside of the slide groove, the spring is fixedly connected to the inner side of the two pressure blocks, the two connecting plates are respectively fixedly connected to the top of the two pressure blocks, and the two cylindrical blocks are both slidably connected to the inside of the support rod.

[0007] Preferably, a groove is provided on the top of the trolley case, and a handle is rotatably connected to the inside of the groove.

[0008] Preferably, a telescopic pull rod is slidably installed inside the pull rod box.

[0009] Preferably, the upper ends of the two connecting plates are fixedly connected to the surfaces of the two cylindrical blocks respectively.

[0010] Preferably, an annular groove is provided inside the cylindrical sleeve.

[0011] Preferably, the two rolling balls are slidably mounted inside the two cylindrical blocks respectively, and the surfaces of the two rolling balls are in contact with the inner wall of the annular groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This easy-to-replace luggage wheel accessory installs and fixes the mobile wheel by using two rolling balls to fit into the annular groove, making it easy for users to disassemble and replace the mobile wheel without causing damage to the mobile wheel. It is also convenient for users to install the mobile wheel, simplifying the installation process of the mobile wheel, and thus improving the convenience of using the trolley case. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the overall structure of a conveniently replaceable luggage wheel accessory of the present invention;

[0016] Figure 2 This is a schematic diagram of the bottom structure of a conveniently replaceable luggage wheel accessory of the present invention;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the cylindrical sleeve of the utility model;

[0018] Figure 4This is a schematic diagram of the cross-sectional structure of the support rod of the utility model.

[0019] Figure numerals: 1, trolley case; 2, groove; 3, handle; 4, telescopic trolley; 5, mounting groove; 6, cylindrical sleeve; 7, support rod; 8, moving wheel; 9, slide; 10, pressure block; 11, spring; 12, connecting plate; 13, cylindrical block; 14, rolling ball; 15, annular groove. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] See also Figure 1-4 The utility model provides a technical solution: a luggage wheel accessory that is easy to replace, including a trolley case 1 and a mobile wheel fixing device. A groove 2 is provided on the top of the trolley case 1, and a handle 3 is rotatably connected inside the groove 2. A telescopic trolley 4 is slidably installed inside the trolley case 1. Four mounting grooves 5 are provided at the bottom of the trolley case 1, and cylindrical sleeves 6 are fixedly connected inside the four mounting grooves 5. A support rod 7 is slidably installed inside the cylindrical sleeve 6. A mobile wheel 8 is rotatably installed at the lower end of the support rod 7, and a slide groove 9 is provided inside the support rod 7.

[0025] The moving wheel fixing device includes two pressure blocks 10, a spring 11, two connecting plates 12, two cylindrical blocks 13 and two rolling balls 14. The two pressure blocks 10 are both slidably connected to the inside of the slide groove 9, the spring 11 is fixedly connected to the inner side of the two pressure blocks 10, the two connecting plates 12 are respectively fixedly connected to the top of the two pressure blocks 10, the two cylindrical blocks 13 are both slidably connected to the inside of the support rod 7, the upper ends of the two connecting plates 12 are respectively fixedly connected to the surfaces of the two cylindrical blocks 13, the two rolling balls 14 are respectively slidably installed in the inside of the two cylindrical blocks 13, and an annular groove 15 is opened inside the cylindrical sleeve 6. The surfaces of the two rolling balls 14 are in contact with the inner wall of the annular groove 15.

[0026] When the trolley case 1 is in use, the user can pull out the telescopic rod 4 upwards to move the trolley case 1 through the telescopic rod 4. The movement of the trolley case 1 can drive the four moving wheels 8 at the bottom to roll on the ground, and the moving wheels 8 can rotate in the horizontal direction. The rotation of the moving wheels 8 can drive the support rod 7 to rotate and adjust the direction inside the cylindrical sleeve 6. The rotation of the support rod 7 can drive the two balls 14 to rotate inside the annular groove 15. At this time, the balls 14 can roll due to the friction between the inner wall of the annular groove 15, thereby improving the smoothness of the rotation adjustment direction of the moving wheels 8.

[0027] When the user needs to replace the moving wheel 8, the user can press the two pressure blocks 10 at the same time with his fingers. The two pressure blocks 10 slide relative to each other and squeeze the spring 11. At this time, the spring 11 gives the two pressure blocks 10 an opposite elastic force, and the two pressure blocks 10 slide relative to each other and drive the two connecting plates 12 to slide relative to each other. The relative sliding of the two connecting plates 12 can drive the two cylindrical blocks 13 to slide relative to each other. The sliding of the two cylindrical blocks 13 finally drives the two rolling balls 14 to move relative to each other and hide into the interior of the support rod 7, and makes the two rolling balls 14 disengage from the interior of the annular groove 15, thereby releasing the fixing effect on the support rod 7 and the moving wheel 8. The user moves the support rod 7 downward to disengage from the interior of the cylindrical sleeve 6 to complete the disassembly. The moving wheel 8 is installed and fixed by using the two rolling balls 14 to be stuck in the annular groove 15, which is convenient for the user to disassemble and replace the moving wheel 8 without causing damage to the moving wheel 8. It is convenient for the user to install the moving wheel 8, simplifies the installation process of the moving wheel 8, and thus improves the convenience of using the trolley case 1.

[0028] Working principle: For the conveniently replaced luggage wheel accessory, the user can press the two pressure blocks 10 at the same time with his fingers. The two pressure blocks 10 slide relative to each other and squeeze the spring 11. At this time, the spring 11 gives the two pressure blocks 10 an opposite elastic force, and the two pressure blocks 10 slide relative to each other and drive the two connecting plates 12 to slide relative to each other. The relative sliding of the two connecting plates 12 can drive the two cylindrical blocks 13 to slide relative to each other. The sliding of the two cylindrical blocks 13 finally drives the two rolling balls 14 to move relative to each other and hide into the interior of the support rod 7, and makes the two rolling balls 14 disengage from the interior of the annular groove 15, thereby releasing the fixing effect on the support rod 7 and the moving wheel 8. The user can complete the disassembly by moving the support rod 7 downward to disengage from the interior of the cylindrical sleeve 6. The moving wheel 8 is installed and fixed by using the two rolling balls 14 to fit into the interior of the annular groove 15, which is convenient for the user to disassemble and replace the moving wheel 8 without causing damage to the moving wheel 8. It is convenient for the user to install the moving wheel 8, simplifies the installation process of the moving wheel 8, and thus improves the convenience of using the trolley case 1.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A conveniently replaceable luggage wheel accessory, characterized in that: include: A moving wheel fixing device provided on the trolley case (1); The bottom of the trolley case (1) is provided with four mounting grooves (5), the interiors of the four mounting grooves (5) are fixedly connected with cylindrical sleeves (6), the interiors of the cylindrical sleeves (6) are slidably provided with support rods (7), the lower ends of the support rods (7) are rotatably provided with moving wheels (8), and the interiors of the support rods (7) are provided with sliding grooves (9); The moving wheel fixing device comprises two pressing blocks (10), a spring (11), two connecting plates (12), two cylindrical blocks (13) and two rolling balls (14). The two pressing blocks (10) are both slidably connected to the inside of the slide groove (9), the spring (11) is fixedly connected to the inner side of the two pressing blocks (10), the two connecting plates (12) are respectively fixedly connected to the top of the two pressing blocks (10), and the two cylindrical blocks (13) are both slidably connected to the inside of the support rod (7).

2. The easily replaceable luggage wheel accessory according to claim 1, characterized in that: A groove (2) is provided on the top of the trolley case (1), and a handle (3) is rotatably connected inside the groove (2).

3. The easily replaceable luggage wheel accessory according to claim 1, characterized in that: A telescopic pull rod (4) is slidably mounted inside the pull rod box (1).

4. The easily replaceable luggage wheel accessory according to claim 1, characterized in that: The upper ends of the two connecting plates (12) are respectively fixedly connected to the surfaces of the two cylindrical blocks (13).

5. The easily replaceable luggage wheel accessory according to claim 1, characterized in that: An annular groove (15) is provided inside the cylindrical sleeve (6).

6. The easily replaceable luggage wheel accessory according to claim 5, characterized in that: The two rolling balls (14) are respectively slidably mounted inside the two cylindrical blocks (13), and the surfaces of the two rolling balls (14) are in contact with the inner wall of the annular groove (15).

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