TWI737225B - Sleeve structure - Google Patents

Abstract

A sleeve structure includes a sleeve body, an O-ring and a carbon fiber tube; the sleeve body has a driving part and an action part coaxially connected with the driving part, the outer diameter of the driving part is larger than the action part A step is formed at the junction of the driving part and the outer peripheral surface of the acting part, the free end surface of the driving part is axially recessed inward with a drive hole, and the free end surface of the acting part is axially recessed inward with an acting hole , The outer peripheral surface of the acting part is surrounded by a ring groove; the O-ring is sleeved in the annular groove of the sleeve body; the carbon fiber tube is sleeved on the outer peripheral surface of the sleeve body, one end of which is connected with The step part abuts, and its inner peripheral surface abuts the O-ring; so as to avoid scratches on the rim, improve ease of use, enhance protection, adapt to existing rims, maintain overall rigidity and easy assembly. .

Description

Sleeve structure

This creation is related to the accessories of pneumatic tools, and more specifically refers to a sleeve structure.

Press, when you want to install the rim on the car or remove the rim from the car, generally use pneumatic tools as the power source, and through the docking with the corresponding sleeve to tighten or loosen the nut .

However, the sleeves that are generally mated with pneumatic tools need to have a certain degree of rigidity to prevent deformation, so they are all made of metal. During the operation, it is very easy to collide between the sleeve and the rim, resulting in scratches on the rim. This situation is for high-demand car owners or this rim (aluminum alloy rim) is very expensive for car owners. In other words, it is extremely difficult to accept, so that disputes between car repair shops (tire dealers) and car owners are often heard.

Therefore, some automobile repair shops (tire shops) will wrap other softer items (such as cloth) on the outer circumference of the sleeve to prevent scratching the rim, but it is not only inconvenient in use, and difficult to penetrate The rim is difficult to apply to the hole into which the sleeve extends. Therefore, some manufacturers have developed a way to put a plastic sleeve on the sleeve, but a plastic sleeve that is too thin has no protective effect, and a plastic sleeve that is too thick will not be able to extend into the hole on the rim, and will cut it instead. The outer diameter of the original sleeve makes the overall rigidity insufficient, and the plastic sleeve is in tight contact with the sleeve during the process of socketing, which makes it difficult to assemble.

In view of this, in order to improve the prior art, the conventional sleeve is prone to scratches on the rim, and the use of foreign objects on the sleeve will be inconvenient in use, poor protection, and difficult to extend into the rim. Problems such as insufficient overall rigidity and difficulty in assembly. For this reason, this creation provides a sleeve structure that includes a sleeve body, an O-ring and a carbon fiber tube; the sleeve body has a driving part and a coaxial connection with the driving part The outer diameter of the driving part is greater than the outer diameter of the acting part, a step is formed at the junction of the driving part and the outer peripheral surface of the acting part, and the free end surface of the driving part is axially recessed inward with a driving hole, The free end surface of the action part is axially recessed inward with an action hole, and the outer circumference of the action part is surrounded by a ring groove; the O-ring is sleeved in the ring groove of the sleeve body; the carbon fiber tube is sleeved in On the outer peripheral surface of the active part of the sleeve body, one end abuts against the step part, and the inner peripheral surface abuts against the O-ring; thereby avoiding scratches on the rim, improving convenience, and strengthening protection It is flexible, adaptable to existing wheels, maintains overall rigidity and is easy to assemble.

100: sleeve structure

10: Sleeve body

11: Drive

111: drive hole

112: positioning hole

12: Action part

121: effect hole

122: ring groove

13: Stage

20: O-ring

30: Carbon fiber tube

The first figure is a three-dimensional exploded view of a preferred embodiment of this creation.

The second figure is a three-dimensional assembly diagram of the embodiment shown in the first figure.

The third figure is a combined cross-sectional view and a partial enlarged schematic diagram of the embodiment shown in the first figure.

In order to enable your reviewer to have a better understanding and recognition of the features and characteristics of this creation, the following examples are listed below in conjunction with the schematic descriptions:

Please refer to the first to third figures, which are a sleeve structure 100 provided by a preferred embodiment of the present creation, which mainly includes a sleeve body 10, an O-ring 20 and a carbon fiber tube 30, in which:

Please refer to the first to third figures, the sleeve body 10 is an integral cylindrical body. The sleeve body 10 has a driving portion 11 and an acting portion 12 integrally and coaxially connected with the driving portion 11, and the outer diameter of the driving portion 11 is larger than the outer diameter of the acting portion 12, so that the driving portion 11 and the acting portion 12 A stepped portion 13 is formed at the junction of the outer peripheral surface of the acting portion 12, and the free end surface of the drive portion 11 is axially recessed and extended from the shaft center position inwardly with a drive hole 111. In this embodiment, the drive hole 111 is a four-corner hole. A positioning hole 112 is formed on the outer peripheral surface of the driving portion 11 to penetrate the center of the circle in a radial direction. The free end surface of the acting portion 12 is axially recessed from the shaft center position and extends inwardly with an acting hole 121. In this embodiment, the acting hole 121 is a hexagonal hole, and a ring groove 122 is circumferentially formed on the outer peripheral surface of the acting portion 12.

Please refer to the first to third figures, the O-ring 20 is a circular ring body integrally made of rubber or other elastic materials. The O-ring 20 is sleeved in the ring groove 122 of the sleeve body 10 and only partially protrudes out of the ring groove 122 slightly.

Please refer to the first to third figures, the carbon fiber tube 30 is an axial hollow tube body made of carbon fiber. The carbon fiber tube 30 is sleeved on the outer peripheral surface of the active portion 12 of the sleeve body 10, and one end of the carbon fiber tube abuts against the step portion 13, and the inner peripheral surface abuts against the O-ring 20, so that the The outer circumferential surface of the carbon fiber tube 30 is flush with the outer circumferential surface of the driving portion 11, and the inner circumferential surface of the carbon fiber tube 30 is spaced from the outer circumferential surface of the acting portion 12 by a gap. The wall thickness of the carbon fiber tube 30 is between 0.3 mm and 0.8 mm.

Therefore, the above is an introduction to the various components and their combinations of the sleeve structure 100 provided by a preferred embodiment of the creation, and then the characteristics of its use are introduced as follows:

First of all, because the carbon fiber tube 30 can produce an extremely thin tube wall, it still retains a certain degree of hardness when the tube wall is extremely thin (its hardness is still lower than that of metal). Therefore, after the ultra-thin tube wall carbon fiber tube 30 is sleeved on the sleeve body 10, its overall outer diameter does not increase too much, so that it can be applied to existing rims, and the overall outer diameter is not If you increase too much, there is no need to reduce the outer diameter of the original sleeve body 10, but the overall rigidity can be maintained, and the hardness of the carbon fiber tube 30 itself can also increase the anti-friction loss effect to increase the service life, so that this creation can not only To avoid damage to the rim, it is more convenient to use, good in protection, can be applied to existing rims, and maintain overall rigidity.

Secondly, because the carbon fiber tube 30 does not make face-to-face contact with the sleeve body 10 when it is sleeved on the sleeve body 10, but only contacts with the O-ring 20. Therefore, it is not only easy to assemble, but also easy to replace consumables such as the carbon fiber tube 30 and the O-ring 20.

Furthermore, although the number of the ring groove 122 and the O-ring 20 of this creation is one in the above embodiment, in order to allow the sleeve body 10 and the carbon fiber tube 30 to be more tightly sleeved, they can be increased appropriately according to actual needs. The number of ring groove 122 and O-ring 20.

In addition, although in the above embodiment, the driving hole is a four-corner hole, and the function hole is a hexagonal hole. But in fact, both the driving hole and the function hole can be any one of four-corner holes, hexagonal holes, octagonal holes, twelve-corner holes or hexagonal star holes.

The above disclosures are only the preferred embodiments provided by this creation, and are not intended to limit the scope of implementation of this creation. All relevant artisans in the technical field should make equal changes based on this creation and should belong to this creation. The scope of coverage.

100: sleeve structure

10: Sleeve body

11: Drive section

112: positioning hole

12: Action part

121: effect hole

122: ring groove

13: Stage

20: O-ring

30: Carbon fiber tube

Claims (8)

A sleeve structure includes: a sleeve body with a drive portion and an action portion coaxially connected with the drive portion, the free end surface of the drive portion is axially recessed inward with a drive hole, and the free end surface of the action portion An action hole is axially depressed inward, and at least one ring groove is surrounded on the outer circumference of the action part; at least one O-ring is sleeved in the ring groove of the sleeve body, and the O-ring is made of rubber The O-ring only partially protrudes out of the ring groove; a carbon fiber tube is sleeved on the outer peripheral surface of the active part of the sleeve body, and its inner peripheral surface is only connected to the O-ring When abutting, there is a gap between the inner peripheral surface and the outer peripheral surface of the acting portion. The sleeve structure according to claim 1, wherein the driving hole of the sleeve body is a square hole. The sleeve structure of claim 1, wherein the function hole of the sleeve body is a hexagonal hole. The sleeve structure of claim 1, wherein the outer diameter of the driving part of the sleeve body is larger than the outer diameter of the acting part, a step is formed at the junction of the driving part and the outer peripheral surface of the acting part, and the carbon fiber One end of the tube abuts the step. The sleeve structure according to claim 1, wherein a positioning hole radially penetrating the center of the circle is formed on the outer peripheral surface of the driving portion of the sleeve body. The sleeve structure according to claim 1, wherein the outer peripheral surface of the carbon fiber tube is flush with the outer peripheral surface of the driving part of the sleeve body. The sleeve structure of claim 1, wherein the wall thickness of the carbon fiber tube is between 0.3 mm and 0.8 mm. The sleeve structure according to claim 1, wherein the carbon fiber tube is an axial hollow tube body made of carbon fiber.

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