PU skateboard wheel

Abstract

The PU skateboard wheel comprises a wheel body and a hub, the hub comprises a cylinder and a disc body, the disc body is arranged on the periphery of the cylinder, the periphery of the cylinder and the periphery of the disc body are wrapped with the wheel body, the disc body is parallel to the axial direction and is evenly provided with a plurality of through holes in an annular shape, and the disc body is provided with a plurality of channels in the radial direction. The channels correspond to the through holes one to one and communicate with the middle positions of the corresponding through holes, the outer ends of the channels communicate with the exterior of the disc body, the channels and the through holes are filled with the interior of the wheel body, and a bearing limiting pressing ring is mounted at the position, located on one side of the bearing mounting groove, of one end of the cylinder through a bolt; the wheel is reasonable in structure, the stability of connection between the wheel body and the hub is greatly improved in the axial direction or the radial direction, the reinforcing plates are arranged at the connecting positions of the cylinder body and the disc body and located in the wheel body, and the reinforcing plates are evenly arranged at the connecting positions of the two ends of the disc body and the cylinder body. And the connection strength between the wheel body and the hub is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PU slide plate wheel technical field, concretely is a PU slide plate wheel. BACKGROUND

[0002] PU slide plate wheel is made of polyurethane (abbreviation PU) material tire, and polyurethane is a kind of high molecular material, with high elasticity, wear resistance, tear resistance and impact resistance etc., PU wheel is usually made of polyurethane cast elastomer raw material, and according to the raw material used, there are differences in yellowing resistance, wear resistance, transparency, hardness etc.

[0003] PU slide plate wheel is mainly composed of wheel body and hub, and the hub of the PU slide plate wheel is generally uniformly provided with a plurality of through holes along the axial direction to cooperate with polyurethane, so as to ensure the connectivity between the wheel body and the hub, but for PU slide plate wheels with higher requirements such as trick boards, the connectivity between the wheel body and the hub still has room for improvement, and there are higher requirements for the installation of bearings, therefore, an improved technology is urgently needed to solve the problem existing in the prior art. SUMMARY

[0004] The utility model aims at providing a PU slide plate wheel to solve the problems raised in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a PU slide plate wheel, comprising a wheel body and a hub, the hub comprises a cylindrical body and a disc body, the disc body is arranged on the periphery of the cylindrical body, the periphery of the cylindrical body and the disc body is wrapped with the wheel body, the disc body is uniformly provided with a plurality of through holes parallel to the axial direction and in a ring shape, the disc body is provided with a plurality of channels along the radial direction, the channels correspond to the through holes one by one and are in communication with the middle positions of the corresponding through holes, the outer ends of the channels are in communication with the outside of the disc body, the inside of the wheel body is filled into the channels and the through holes, a center hole is formed in the central position of the cylindrical body along the axial direction, a bearing mounting groove is formed at one end of the center hole, a bearing limiting pressure ring is mounted on one end of the cylindrical body and on one side of the bearing mounting groove through bolts, a plurality of reinforcing plates are uniformly arranged at the connection between the two ends of the disc body and the cylindrical body.

[0006] Preferably, the PU slide plate wheel provided by the utility model, wherein, a plurality of screw holes are formed at one end of the cylindrical body in the bearing mounting groove, a plurality of connecting holes are uniformly formed in the bearing limiting pressure ring, the positions of the connecting holes formed in the bearing limiting pressure ring correspond to the positions of the screw holes one by one and are connected through bolts.

[0007] Preferably, the PU slide plate wheel provided by the utility model, wherein, the inner diameter of the bearing limiting pressure ring is consistent with the hole diameter of the center hole, and the inner diameter of the cylindrical body at the bearing mounting groove is larger than the inner diameter of the bearing limiting pressure ring.

[0008] Preferably, the PU skateboard wheel provided by this utility model has tapered holes at both ends of the wheel body, and the inner end of the tapered hole is connected to the outer edge of the end of the cylindrical body.

[0009] Preferably, the PU skateboard wheel provided by this utility model has the reinforcing plate disposed inside the wheel body.

[0010] Preferably, the PU skateboard wheel provided by this utility model has the cylindrical body and the disc body as an integral structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The hub is composed of a cylindrical body and a disc body. The disc body has several through holes along the axial direction, and the disc body has channels along the radial direction at each through hole. Polyurethane enters the through holes and channels and is formed. This connection method between the wheel body and the hub greatly improves the connection stability between the wheel body and the hub, whether along the axial direction or the radial direction. In addition, several reinforcing plates are provided at the connection between the cylindrical body and the disc body. The reinforcing plates are located inside the wheel body, which further improves the connection strength between the wheel body and the hub.

[0013] (2) A bearing limiting pressure plate is installed at one end of the bearing mounting groove of the hub by bolts to ensure that the bearing will not detach or loosen after being connected to the hub. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the front view of the wheel hub.

[0017] Figure 4 This is a top view of the wheel hub structure.

[0018] In the diagram: wheel body 1, wheel hub 2, bearing limiting pressure ring 3, tapered hole 4, cylindrical body 201, disc body 202, through hole 203, channel 204, center hole 205, bearing mounting groove 206, reinforcing plate 207, screw hole 208. Detailed Implementation

[0019] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please see Figures 1-4This utility model provides a technical solution: a PU skateboard wheel, including a wheel body 1 and a hub 2. The hub 2 includes a cylindrical body 201 and a disc body 202. The disc body 202 is arranged around the cylindrical body 201. The cylindrical body 201 and the disc body 202 are integral structures to ensure the connection strength between the cylindrical body 201 and the disc body 202, and to facilitate one-piece molding using an injection molding machine. The wheel body 1 is wrapped around the cylindrical body 201 and the disc body 202. Tapered holes 4 are provided at both ends of the wheel body 1. The inner end of the tapered hole 4 is connected to the end of the cylindrical body 201. The outer edge of the wheel is fitted and connected, and the transition between the wheel body 1 and the hub 2 is achieved through a tapered hole. The disc body 202 is parallel to the axial direction and has a number of through holes 203 evenly distributed in a ring. The disc body 202 has a number of channels 204 radially distributed. The channels 204 correspond one-to-one with the through holes 203 and are interconnected with the middle position of the corresponding through holes 203. The outer end of the channel 204 is interconnected with the outside of the disc body 202. The inside of the wheel body 1 is filled into the channels 204 and the through holes 203. The cylindrical body 201 has a central hole 205 at its center position and along the axial direction. A bearing mounting groove 206 is provided at one end of the hole 205. The inner diameter of the bearing limiting ring 3 is the same as the diameter of the central hole 205. The inner diameter of the cylindrical body 201 located in the bearing mounting groove 206 is larger than the inner diameter of the bearing limiting ring 3 to ensure that the bearing limiting ring 3 can limit the position of the bearing after it is inserted into the bearing mounting groove 206, without affecting the connection with the slide bracket. The bearing limiting ring 3 is bolted to one end of the cylindrical body 201 located on one side of the bearing mounting groove 206. The bearing limiting ring 3 has several screw holes 208 at one end and several connecting holes evenly distributed on it. The positions of the connecting holes on the bearing limiting ring 3 correspond one-to-one with the positions of the screw holes 208 and are connected by bolts. This structure enables the connection and disassembly of the bearing limiting ring 3 and the hub 2. Several reinforcing plates 207 are evenly distributed at both ends of the disc body 202 and at the connection with the cylindrical body 201. The reinforcing plates 207 are disposed inside the wheel body 1 to ensure that the reinforcing plates 207 and the wheel body 1 can cooperate with each other and ensure the connection between the wheel body 1 and the hub 2.

[0022] Manufacturing method and operating principle: First, a hub 2 with screw holes 208 and channels 204 is obtained by injection molding. The hub 2 consists of a cylindrical body 201 and a disc body 202. Then, a screw hole 208 is drilled at one end of the cylindrical body 201 of the hub 2 using a tapping machine, and a channel 204 is drilled radially using a hole-drilling machine. The channels 204 and through holes 203 are positioned one-to-one and interconnected, completing the manufacturing of the hub 2. The hub 2 is placed in a mold, and polyurethane is poured into the mold, entering each channel 204 and through hole 203. The mold is placed in an oven and heated to form the PU skateboard wheel of this application. When inserting the bearing into the bearing mounting groove 206, a matching bearing limiting ring 3 is prepared. The bearing limiting ring 3 is placed at one end of the hub 2 located in the bearing mounting groove 206, and bolts are used to connect the bearing limiting ring 3 to the cylindrical body 201 of the hub 2, completing the bearing limiting. This utility model has a reasonable structure. The hub 2 is composed of a cylindrical body 201 and a disc body 202. The disc body 202 has several through holes 203 along the axial direction, and the disc body 202 has channels 204 along the radial direction at each through hole 203. Polyurethane enters the through holes 203 and channels 204 and is formed. This connection method between the wheel body 1 and the hub 2 greatly improves the connection stability between the wheel body 1 and the hub 2, whether along the axial direction or the radial direction. Furthermore, several reinforcing plates 207 are provided at the connection between the cylindrical body 201 and the disc body 202. The reinforcing plates 207 are located inside the wheel body 1, which further improves the connection strength between the wheel body 1 and the hub 2. A bearing limiting pressure plate is provided at one end of the bearing mounting groove 206 of the hub 2 by bolts to ensure that the bearing will not detach or loosen after being connected to the hub 2.

[0023] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0024] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A PU skateboard wheel, characterized in that: The device includes a wheel body (1) and a hub (2). The hub (2) includes a cylindrical body (201) and a disc body (202). The disc body (202) is arranged around the cylindrical body (201). The wheel body (1) is wrapped around the cylindrical body (201) and the disc body (202). The disc body (202) has a plurality of through holes (203) evenly distributed in a ring shape parallel to the axial direction. The disc body (202) has a plurality of channels (204) arranged radially. The channels (204) correspond one-to-one with the through holes (203) and are interconnected with the middle position of the corresponding through holes (203). The outer end of the channel (204) is connected to the outside of the disc body (202). The inside of the wheel body (1) is filled into the channel (204) and the through hole (203). The cylindrical body (201) has a central hole (205) at its center and along the axial direction. One end of the central hole (205) has a bearing mounting groove (206). One end of the cylindrical body (201) and on one side of the bearing mounting groove (206) is fitted with a bearing limiting pressure ring (3) by bolts. Several reinforcing plates (207) are evenly arranged at both ends of the disc body (202) and at the connection with the cylindrical body (201).

2. The PU skateboard wheel according to claim 1, characterized in that: The cylindrical body (201) has several screw holes (208) at one end of the bearing mounting groove (206), and the bearing limiting pressure ring (3) has several connecting holes evenly distributed. The positions of the connecting holes of the bearing limiting pressure ring (3) correspond one-to-one with the positions of the screw holes (208) and are connected by bolts.

3. A PU skateboard wheel according to claim 1, characterized in that: The inner diameter of the bearing limiting ring (3) is consistent with the diameter of the central hole (205), and the inner diameter of the cylindrical body (201) located in the bearing mounting groove (206) is greater than the inner diameter of the bearing limiting ring (3).

4. A PU skateboard wheel according to claim 1, characterized in that: The wheel body (1) has tapered holes (4) at both ends, and the inner end of the tapered holes (4) is connected to the outer edge of the end of the cylindrical body (201).

5. A PU skateboard wheel according to claim 1, characterized in that: The reinforcing plate (207) is disposed inside the wheel body (1).

6. A PU skateboard wheel according to claim 1, characterized in that: The cylindrical body (201) and the disc body (202) are an integral structure.

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