Hub structure of electric skateboard

Abstract

The utility model relates to the technical field of electric scooter equipment, and provides a hub structure of an electric skateboard, which comprises a supporting barrel-shaped piece, an annular connecting piece is sleeved on the outer side of the supporting barrel-shaped piece, and a plurality of nuts are respectively welded on two sides of the supporting barrel-shaped piece and the annular connecting piece in a combined state.

Description

Technical Field

[0001] The utility model relates to the technical field of electric scooters, in particular to a wheel hub structure of an electric scooter. Background Art

[0002] A scooter is a simple and convenient means of transportation that can be used for daily commuting and general entertainment, and is suitable for use by people of all ages. Currently, the motor hub support strength of electric skateboards relies on several axially mounted bolts, which are generally weak and prone to breakage and damage over long periods of use, causing harm to the user's body.

[0003] To this end, we propose a wheel hub structure for an electric skateboard. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a hub structure for an electric skateboard, in which a plurality of nuts are welded on both sides between the supporting cylindrical member and the annular connecting member, thereby strengthening the connection strength between the two, and at the same time improving the supporting strength after the two are assembled, thereby preventing the internal structure from being damaged by force under long-term use; by arranging a supporting layer on the two motor end covers, supporting force can be provided to the two ends of the supporting cylindrical member, and at the same time, an edge is provided on the annular connecting member, which is pressed by the outer edge of the motor end cover, thereby preventing the annular connecting member from shaking and improving stability.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A hub structure for an electric skateboard is characterized by comprising: a supporting cylindrical member, an annular connecting member sleeved on the outer side of the supporting cylindrical member, and a plurality of nuts welded on both sides of the supporting cylindrical member and the annular connecting member in the assembled state.

[0009] Preferably, the first motor end cover and the second motor end cover are respectively assembled on both sides of the supporting cylindrical member and the annular connecting member in the assembled state, and each motor end cover is provided with a plurality of threaded mounting holes respectively matched with a plurality of nuts on both sides.

[0010] Preferably, the inner wall of the annular connecting member protrudes toward the supporting cylindrical member, and the protrusion of the annular connecting member abuts against the outer wall of the supporting cylindrical member.

[0011] Preferably, the nut is welded in the gap between the supporting cylindrical member and the annular connecting member in the assembled state.

[0012] Preferably, the inner walls of the first motor end cover and the second motor end cover extend toward the supporting cylindrical member to form a supporting layer, and the supporting layer extends into the inner wall of the supporting cylindrical member.

[0013] Preferably, both ends of the annular connector extend outward to form edges, and the outer edges of the motor end covers on both sides axially conflict with the edges of each end of the annular connector.

[0014] (3) Beneficial effects

[0015] The present invention provides a hub structure for an electric skateboard. The hub structure has the following beneficial effects:

[0016] 1. By welding a number of nuts on both sides of the supporting cylindrical member and the annular connecting member, the connection strength between the two can be strengthened, and the supporting strength after the two are assembled can be improved to avoid the internal structure being damaged by stress under long-term use.

[0017] 2. By providing a support layer on the two motor end covers, support force can be provided to both ends of the supporting cylinder. At the same time, an edge is provided on the annular connector and is pressed by the outer edge of the motor end cover to prevent the annular connector from shaking and improve stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a side view schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional schematic diagram;

[0020] Figure 3 This is a three-dimensional schematic diagram of the supporting cylindrical member structure of the utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the annular connector of the utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the support layer structure of the utility model;

[0023] Figure 6 It is a schematic cross-sectional view of the structure of the utility model.

[0024] In the picture:

[0025] 1. Support cylindrical member;

[0026] 2. Ring connector;

[0027] 3. First motor end cover;

[0028] 4. Second motor end cover;

[0029] 5. Support layer;

[0030] 6. Along the border. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] Refer to the attached Figure 1-6 A hub structure for an electric skateboard includes a supporting cylindrical member 1, with a first motor end cover 3 and a second motor end cover 4 connected to both ends of the supporting cylindrical member 1, each motor end cover having a plurality of threaded mounting holes.

[0033] The inner wall of each motor end cover extends toward the supporting cylindrical member 1 to form a supporting layer 5, which extends into the inner wall of the supporting cylindrical member 1 to facilitate the positioning and installation of the motor end cover on the supporting cylindrical member 1, and can also provide supporting force from both ends of the supporting cylindrical member 1. A motor coil assembly is also installed in the supporting cylindrical member 1.

[0034] An annular connecting member 2 is sleeved on the outer side of the supporting cylindrical member 1. The inner wall of the annular connecting member 2 protrudes toward the supporting cylindrical member 1. The protrusion of the annular connecting member 2 abuts against the outer wall of the supporting cylindrical member 1 to prevent the supporting cylindrical member 1 from shaking up and down.

[0035] Example 1

[0036] A number of nuts are welded at annular intervals on the outer surface of the supporting cylindrical member 1, and the nuts are arranged on one side of the supporting cylindrical member 1 close to the first motor end cover 3. It can be understood that the threaded mounting holes of the first motor end cover 3 are adapted to the number and position of the nuts of the supporting cylindrical member 1, so that the bolts can be screwed into the nuts of the supporting cylindrical member 1 from the threaded mounting holes of the first motor end cover 3 to complete the installation and fixation between the first motor end cover 3 and the supporting cylindrical member 1.

[0037] A plurality of nuts are welded to the inner wall of one side of the annular connecting member 2 at an annular interval. The nuts of the annular connecting member 2 are arranged on the side opposite to the nuts on the supporting cylindrical member 1. It can be understood that, if Figure 6 As shown, several nuts of the annular connector 2 and several nuts of the supporting cylindrical member 1 are symmetrically arranged with respect to the virtual line A; when the second motor end cover 4 and the supporting cylindrical member 1 are installed, several threaded mounting holes of the second motor end cover 4 correspond one-to-one to several nuts of the annular connector 2.

[0038] The installation process of the two motor end covers, the supporting cylindrical member 1 and the annular connector 2 is as follows: the supporting cylindrical member 1 first enters the interior from the side of the annular connector 2 (the side where the multiple nuts are not set), and the multiple nuts of the supporting cylindrical member 1 are pressed against one side of the annular connector 2 to complete the positioning between the supporting cylindrical member 1 and the annular connector 2. Then, the contact surfaces between the multiple nuts on the supporting cylindrical member 1 and the annular connector 2 and the contact surfaces between the multiple nuts on the supporting cylindrical member 1 and the annular connector 2, that is, the two contact surfaces, are welded to complete the reinforcement. Finally, the two motor end covers are respectively installed in place with the supporting cylindrical member 1.

[0039] Example 2

[0040] Different from Example 1, the supporting cylindrical member 1 and the annular connecting member 2 can be preliminarily assembled and installed first, and then a number of nuts are welded on both sides of the combined state to connect and fix the two together through the nuts.

[0041] Both ends of the annular connector 2 extend outward to form edges 6. The outer edges of the motor end covers on both sides axially contact the edges 6 at each end of the annular connector 2, pressing the annular connector 2 to prevent shaking.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A wheel hub structure for an electric skateboard, characterized in that: include: A supporting cylindrical member (1) is provided, and an annular connecting member (2) is sleeved on the outer side of the supporting cylindrical member (1). In the assembled state, a plurality of nuts are respectively welded on both sides of the supporting cylindrical member (1) and the annular connecting member (2).

2. The wheel hub structure of an electric skateboard according to claim 1, characterized in that: The supporting cylindrical member (1) and the annular connecting member (2) are respectively equipped with a first motor end cover (3) and a second motor end cover (4) on both sides in the assembled state, and each motor end cover is provided with a plurality of threaded mounting holes respectively matched with a plurality of nuts on both sides.

3. The wheel hub structure of an electric skateboard according to claim 2, characterized in that: The inner wall of the annular connecting member (2) protrudes toward the supporting cylindrical member (1), and the protrusion of the annular connecting member (2) abuts against the outer wall of the supporting cylindrical member (1).

4. The wheel hub structure of an electric skateboard according to claim 3, wherein: The nut is welded at the gap between the supporting cylindrical member (1) and the annular connecting member (2) in the assembled state.

5. The wheel hub structure of an electric skateboard according to claim 2, characterized in that: The inner walls of the first motor end cover (3) and the second motor end cover (4) both extend toward the supporting cylindrical member (1) to form a supporting layer (5), and the supporting layer (5) extends into the inner wall of the supporting cylindrical member (1).

6. The wheel hub structure of an electric skateboard according to claim 5, characterized in that: Both ends of the annular connector (2) extend outward to form edges (6), and the outer edges of the motor end covers on both sides axially abut against the edges (6) at each end of the annular connector (2).

Images