Vertically adjustable roller skate axle device

Abstract

The utility model relates to the technical field of roller skates, in particular to a roller skate axle device capable of being adjusted up and down, which comprises a roller skate base, an open groove is arranged on the roller skate base, four wheels used for the roller skates are arranged in the open groove, straight notches are arranged on the roller skate base and symmetrically distributed on two sides, and the straight notches are arranged on the roller skate base. And a wheel shaft female nail and a wheel shaft male nail are respectively arranged between the straight notch and the wheel. According to the roller skate wheel shaft device, the directions of the two side plug buckles are turned up and down at the same time, vertical adjustment of the position of the wheel shaft is achieved, wheels of different sizes can be conveniently installed, the height of the gravity center of the roller skate can be adjusted, and the whole device has the advantages of being simple, reliable, convenient to install and produce and suitable for application and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of roller skates, in particular to a roller skate wheel axle device which is adjustable up and down. Background Art

[0002] Roller skates were first created by attaching bones to the soles of long leather boots to help hunters hunt in winter. Hoping to simulate ice skating in the summer, long strips of wood were attached to the shoes using nails made from wooden spools.

[0003] A reference to Chinese patent publication number CN217794435U discloses a roller skate base. The skates comprise a shoe body, a bracket, and an upper. The lower end of the shoe body is bolted to a bracket for securing pulleys, with a brake seat located at the rear end. The upper end of the shoe body is provided with fixing posts on either side, and the upper is provided with two opposing fixing openings that slot onto the fixing posts for flexible securement. With this structural design, a pair of roller skates can be sold with only two sets of brackets, each with different pulley sizes, enabling rapid speed skating.

[0004] However, the roller skates are of an integral structure, and the roller skate frame is composed of a frame connected to the wheels through the axle. In this structure, the wheels of the roller skates are fixed, and the axle position cannot be adjusted up and down. It is also not convenient to install wheels of different sizes, and the center of gravity of the roller skates cannot be adjusted. A roller skate axle device with adjustable up and down motion is needed to solve this problem. Utility Model Content

[0005] The purpose of the utility model is to provide a roller skate wheel axle device that can be adjusted up and down to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a roller skate wheel axle device that can be adjusted up and down, including a roller skate base, a slot is provided on the roller skate base, four wheels used by the roller skates are arranged in the slot, straight slots are provided on the roller skate base, and the straight slots are symmetrically distributed on both sides, and a female axle nail and a male axle nail are respectively installed between the straight slots and the wheels.

[0007] As an optimal technical solution of the present invention, the straight slots on both side ends of the roller skate base are respectively connected with round hole side plug buckles and square hole side plug buckles, and the round hole side plug buckles and square hole side plug buckles are respectively penetrated by the wheel axle female nail and the wheel axle male nail to form a single-sided lock.

[0008] As a preferred technical solution of the present invention, a thread groove is provided in the middle of the wheel axle female nail, and the threaded rod portion on the wheel axle male nail is thread-locked with the thread groove provided on the wheel axle female nail.

[0009] As a preferred technical solution of the present utility model, a square boss is provided in the middle of the axle male nail.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] (1) The utility model is a roller skate axle device that can be adjusted up and down. The roller skate axle device provided in the device can adjust the axle position up and down by simultaneously flipping the directions of the two side buckles up and down, which is convenient for installing wheels of different sizes and can also adjust the height of the center of gravity of the roller skates. The entire device is simple, reliable, easy to install, and easy to produce, and is suitable for promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic structural diagram of a roller skate wheel axle device that is adjustable up and down according to an embodiment of the utility model;

[0014] Figure 2 This is an expanded view of a roller skate wheel axle device that is adjustable up and down according to an embodiment of the utility model;

[0015] Figure 3 This is a structural diagram of a square hole side plug buckle of a roller skate wheel axle device that is adjustable up and down according to an embodiment of the utility model;

[0016] Figure 4 The utility model is a schematic structural diagram of a circular hole side plug buckle of a roller skate wheel axle device that can be adjusted up and down according to an embodiment of the present utility model.

[0017] Reference numerals:

[0018] 1. Roller skate base; 2. Slots; 3. Wheels; 4. Straight notches; 5. Axle female nails; 6. Threaded grooves; 7. Round hole side plugs; 8. Axle male nails; 9. Square hole side plugs. DETAILED DESCRIPTION

[0019] Below, the utility model is further described with reference to the accompanying drawings and specific embodiments:

[0020] Example 1

[0021] refer to Figures 1 to 4Embodiment 1 is described, comprising a roller skate base 1, with a slot 2 formed on the roller skate base 1, four wheels 3 for the roller skates being disposed in the slot 2, straight slots 4 formed on the roller skate base 1, and the straight slots 4 being symmetrically distributed on both sides, a female axle nail 5 and a male axle nail 8 being mounted between the straight slots 4 and the wheels, respectively, with a square boss being disposed in the middle of the male axle nail 8;

[0022] In this embodiment, by adjusting the positions of the round holes and square holes on the round hole side plug buckle 7 and the square hole side plug buckle 9, wheels of different sizes can be easily installed, and the height of the center of gravity of the roller skates can also be adjusted.

[0023] Example 2

[0024] refer to Figure 2 Example 2 is described. This embodiment further illustrates Example 1 and includes a roller skate base 1. The straight notches 4 on both side ends of the roller skate base 1 are respectively connected to round hole side plugs 7 and square hole side plugs 9. The round hole side plugs 7 and square hole side plugs 9 are respectively penetrated by a wheel axle female nail 5 and a wheel axle male nail 8 to form a single-sided lock. The wheel axle female nail 5 has a threaded groove 6 in the middle. The threaded rod portion of the wheel axle male nail 8 is threadedly locked with the threaded groove 6 provided on the wheel axle female nail 5.

[0025] In this embodiment, the round hole side plug buckle 7 and the square hole side plug buckle 9 provided on the roller skate base 1 can be installed in a low position and a high position to achieve the up and down adjustment of the wheel axle position.

[0026] In specific applications, during the installation process of the roller skate wheel axle device set by the device, it is first determined whether the installation is low or high. If it is installed in the low position, the round holes and square holes of the round hole side plug buckle 7 and the square hole side plug buckle 9 are aligned with the lower ends, and the round hole side plug buckle 7 and the square hole side plug buckle 9 are respectively installed in the straight slot 4 on the corresponding pulley base 1 and buckled. Then, the wheel axle female nail 5 is inserted into the round hole of the round hole side plug buckle 7 and penetrated. Press the wheel axle female nail 5 to manually flip the pulley base 1 and then insert the wheel axle male nail 8 Insert it into the square hole of the square hole side plug buckle 9 and penetrate it, align the wheel axle male nail 8 with the threaded groove 6 on the wheel axle female nail 5, then press the wheel axle male nail 8 and manually flip the pulley base 1, and use the corresponding wheel axle female nail screwdriver to manually rotate the flower groove at the top of the wheel axle female nail 5 to realize the unilateral locking function. Conversely, install the round hole and square hole corresponding upper ends of the round hole side plug buckle 7 and the square hole side plug buckle 9 in the straight slot 4 on the pulley base 1 and buckle them to form a high position, and repeat the above steps to realize the up and down adjustment of the wheel axle position.

[0027] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle", "inside", "top", "bottom end", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, they can mean fixed connection, detachable connection, or integral connection; they can mean mechanical connection or electrical connection; they can mean direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalent features for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A roller skate wheel axle device that can be adjusted up and down, characterized in that: The invention comprises a roller skate base (1), wherein a slot (2) is provided on the roller skate base (1), and four wheels (3) used for the roller skates are provided in the slot (2); a straight slot (4) is provided on the roller skate base (1), and the straight slots (4) are symmetrically distributed on both sides; and a wheel axle female nail (5) and a wheel axle male nail (8) are respectively installed between the straight slot (4) and the wheels.

2. The roller skate wheel axle device with vertical adjustment according to claim 1, characterized in that: The straight notches (4) on both side ends of the roller skate base (1) are respectively connected with a round hole side plug buckle (7) and a square hole side plug buckle (9), and the round hole side plug buckle (7) and the square hole side plug buckle (9) are respectively penetrated by the wheel axle female nail (5) and the wheel axle male nail (8) to form a single-sided lock.

3. The roller skate wheel axle device with vertical adjustment according to claim 2, characterized in that: A thread groove (6) is provided in the middle of the wheel axle female nail (5), and the threaded rod portion on the wheel axle male nail (8) is thread-locked with the thread groove (6) provided on the wheel axle female nail (5).

4. The roller skate wheel axle device with vertical adjustment according to claim 1, characterized in that: A square boss is provided in the middle of the wheel axle male nail (8).

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