TWI733326B - Hub - Google Patents

Abstract

A hub, comprising: a supporting plate with a bottom of the supporting plate, a rotating shaft, and at least three first accommodating grooves with upward notches; the rotating shaft and the at least three first accommodating grooves are arranged at the bottom of the supporting plate and the rotating shafts are opposite to each other Extending upwards from the bottom of the supporting plate, at least three first accommodating grooves are spaced a first predetermined distance from the rotating shaft and surround the rotating shaft equiangularly; the number of balls equal to the at least three first accommodating grooves, and the plural balls are respectively placed at the at least three first The accommodating slot; the turntable has a bottom of the turntable, the bottom of the turntable has a shaft hole, the turntable is placed on a plurality of balls and the rotating shaft passes through the shaft hole; the cover has a cover top and an entrance, and the rotating shaft is fixed on the top of the cover, The cover body and the supporting plate jointly form an accommodating space accommodating the turntable, and the accommodating space is connected to the outside through the entrance.

Description

Hub

The present invention is related to the line concentrator, and particularly refers to a line concentrator.

According to, the conventional hub is mainly composed of a cover, a support plate and a hub turntable. The cover is fixed on the support plate and forms a containing space with the support plate. The hub turntable is pivoted on the support plate and is located in the container. In the set space, in order to allow the cluster turntable to rotate smoothly with respect to the cover and the support plate, and to provide the function of the cluster turntable not being easily deformed when weighted, there is a square turntable between the cluster turntable and the support plate. The ball bearing is pivotally arranged on the rotating shaft, and the concentrating turntable is arranged on the square turntable.

However, in the aforementioned conventional technology, for the square turntable and the ball bearing, although the method is easy to manufacture or obtain, the cost is high and it is not conducive to sales.

In view of the above situation, the main purpose of the present invention is to provide a hub. Compared with the conventional hub, the present invention can achieve the effect of smoothly rotating the hub with respect to the cover and the holder at a lower cost.

In order to achieve the above-mentioned object, the present invention provides a hub, which includes: a supporting plate with a supporting plate bottom, a supporting plate side wall, a rotating shaft and at least three first accommodating grooves, the supporting plate side wall is arranged on the supporting plate The outer edge of the bottom extends upward relative to the bottom of the supporting plate, the rotating shaft and the at least three first accommodating grooves are arranged at the bottom of the supporting plate, and the rotating shaft extends upward relative to the bottom of the supporting plate. The accommodating grooves each have an upward notch, the at least three first accommodating grooves are separated from the rotating shaft by a first predetermined distance and equiangularly surround the rotating shaft; and the number of balls equal to the at least three first accommodating grooves , The plurality of balls are respectively placed in the at least three first accommodating grooves and partially exposing the notch; a turntable has a turntable bottom and a turntable side wall, the turntable side wall is arranged on the outer edge of the turntable bottom and is opposite to The bottom of the turntable extends upward, the bottom of the turntable has a shaft hole, the turntable is placed on the plurality of balls and the shaft passes through the shaft hole, and the bottom of the turntable is supported by the plurality of balls; and, a cover body having A cover top, a cover side wall, and an entrance, the cover side wall is disposed on the outer edge of the cover top and extends downward relative to the cover top, the top of the rotating shaft is fixed on the cover top and The lower edge of the side wall of the cover is clamped on the upper edge of the side wall of the supporting plate, and the cover and the supporting plate jointly form an accommodating space. The turntable is located in the accommodating space. The entrance is connected to the outside.

Preferably, the cover body further has a guide assembly, the guide assembly has a guide seat body, a guide cover and a guide tube, and the guide seat body is arranged on the top of the cover and extends upward relative to the top of the cover. , The extension port is arranged in the guide cover, the guide tube is arranged in the guide cover obliquely from top to bottom along the tangent direction of the rotating shaft, and the inner space of the guide tube can pass through the extension port The guide cover is arranged on the guide seat body and the guide tube is located in the guide seat body, and the accommodating space can communicate with the outside through the guide tube and the extension port.

Preferably, the supporting plate further has at least three second accommodating grooves, the at least three second accommodating grooves are arranged at the bottom of the supporting plate, the at least three first accommodating grooves and the at least three second accommodating grooves respectively With the notch, the at least three second accommodating slots are separated from the rotating shaft by a second predetermined distance and equiangularly surround the rotating shaft, wherein the first predetermined distance is not equal to the second predetermined distance.

Preferably, the number of the plurality of balls is the sum of the number of the at least three first accommodating grooves and the number of the at least three second accommodating grooves, and the plurality of balls are respectively placed in the at least three first accommodating grooves and the At least three second accommodating grooves partially expose the notch.

Preferably, the turntable further has a ball slide, the ball slide is arranged at the bottom of the turntable, the ball slide is annular and is located between the at least three first accommodating grooves and the bottom of the turntable, the plurality of balls Abutting against the bottom of the turntable and partly located in the ball slide.

Preferably, the bearing further includes a bearing having a tube portion and a wing portion, the tube portion extends from the outer edge of one end of the wing portion outward, the tube portion is sleeved on the rotating shaft, and the inner tube of the tube portion The top of the wall abuts the shaft; the outer tube wall of the tube abuts the bottom of the turntable on the surface of the shaft hole; the wing is placed on the surface of the bottom of the support plate facing upward, and the wing is located at the bottom of the turntable and Between the bottom of the supporting plate, and the wing portion supports the bottom of the turntable upward.

Preferably, the turntable further has an extension, the extension is disposed at the bottom of the turntable and extends upward relative to the bottom of the turntable, wherein the shaft passes through the shaft hole and is partially located in the extension.

Preferably, the bearing further includes a bearing having a tube portion and a wing portion, the tube portion extends from the outer edge of one end of the wing portion outward, the tube portion is sleeved on the rotating shaft, and the inner tube of the tube portion The top of the wall abuts against the shaft; the outer tube wall of the tube abuts against the extension and the bottom of the turntable is located on the surface of the shaft hole; the wing is placed on the surface of the bottom of the supporting plate facing upward, and the wing is located Between the bottom of the turntable and the bottom of the supporting plate, the wing portion supports the bottom of the turntable upward.

In order to describe the structure and features of the present invention in detail, the following preferred embodiments are described in conjunction with the drawings, in which:

Please refer to FIGS. 1 to 6, a hub 10 provided by the first preferred embodiment of the present invention includes a supporting plate 11, three balls 21, a turntable 31, a bearing 41 and a cover 51.

The supporting plate 11 has a supporting plate bottom 12, a supporting plate side wall 13, a rotating shaft 14 and three first accommodating grooves 15 in the shape of a disc. The supporting plate side wall 13 is arranged on the outer edge of the supporting plate bottom 12 And extends upward relative to the bottom 12 of the supporting plate, the rotating shaft 14 and the three first accommodating grooves 15 are disposed on the bottom 12 of the supporting plate, and the rotating shaft 14 extends upward relative to the bottom 12 of the supporting plate. The accommodating grooves 15 respectively have a notch 151 facing upward. The three first accommodating grooves 15 are separated from the rotating shaft 14 by a first predetermined distance D1 and surround the rotating shaft 14 equiangularly. In the first preferred embodiment, the three first accommodating grooves 15 are respectively composed of four vertical walls (not marked in the figure) and part of the bottom 12 of the tray, and the four vertical walls (not marked in the figure) It extends upward relative to the bottom 12 of the supporting plate, but the three first accommodating grooves 15 are not limited to this structure, and the three first accommodating grooves 15 may be recessed downward from the surface of the bottom 12 toward the top. Slot 15.

The three balls 21 are respectively placed in the three first accommodating grooves 15 and partially expose the notch 151.

It should be added that, in order to clearly express the effect of the present invention, the number of the balls 21 described in the specification and the scope of the patent application is equal to the number of the first receiving groove 15 and both are at least three. In actual implementation, according to different usage requirements or conditions, as shown in FIG. 4, the number of the first accommodating groove 15 may be greater than the number of the balls 21. In the first preferred embodiment, the balls 21 and the balls 21 The number of the first accommodating groove 15 is three as an example, but it is not limited thereto.

The turntable 31 has a turntable bottom 32, a turntable side wall 33, a ball slide 34 and an extension 35. The turntable side wall 33 is disposed on the outer edge of the turntable bottom 32 and extends upward relative to the turntable bottom 32. The bottom 32 of the turntable has a shaft hole 321. The turntable 31 is placed on the three balls 21 and the shaft 14 passes through the shaft hole 321. The bottom 32 of the turntable is supported by the three balls 21; The bottom 32 of the turntable, the ball slide 34 is annular and is located between the three first accommodating grooves 15 and the bottom 32 of the turntable, the three balls 21 abut against the bottom 32 of the turntable and are partially located on the ball slide 34 The extension 35 is disposed at the bottom 32 of the turntable and extends upward relative to the bottom 32 of the turntable. The extension 35 is cylindrical, wherein the shaft 14 passes through the shaft hole 321 and is partially located in the extension 35 , And the turntable 31 can rotate relative to the supporting plate 11.

It should be noted that, as shown in FIG. 6, in terms of the cross section of the ball slide 34, the surface of the ball slide 34 for contacting the three balls 21 is arc-shaped. With this structure, the three balls 21 In addition to being able to stably roll in the ball slide 34, the turntable 31 can also use the ball slide 34 and the three balls 21 when it rotates relative to the support plate 11 or is affected by an outward force from one side. The combination relationship is not easy to produce lateral deviation, so as to achieve the effect of the three balls 21 limiting the position of the turntable 31.

The bearing 41 has a pipe portion 42 and a wing portion 43. The pipe portion 42 extends outward from the outer edge of one end of the wing portion 43. The pipe portion 42 is sleeved on the rotating shaft 14, and the inner side of the pipe portion 42 is The top of the wall abuts against the shaft 14; the outer tube wall of the tube 42 abuts against the extension 35, and the bottom 32 of the turntable is located on the surface of the shaft hole 321; the wing 43 is placed on the bottom 12 of the supporting plate facing upward The wing 43 is located between the bottom 32 of the turntable and the bottom 12 of the supporting plate, and the wing 43 supports the bottom 32 of the turntable upward.

It should be noted that when the turntable 31 rotates relative to the support plate 11 or is affected by a side-outward force, it is not easy to generate the combination of the bearing 41 against the rotating shaft 14 and the turntable 31. Lateral deviation, thereby achieving the effect of the bearing 41 limiting the position of the turntable 31.

The cover 51 has a disk-shaped cover top 52, a cover side wall 53, a guide assembly 54 and an entrance 55. The cover side wall 53 is disposed on the outer edge of the cover top 52 and is opposite to each other. The top 52 of the cover extends downward, the top of the shaft 14 is fixed at the center of the top 52 of the cover, the lower edge of the cover side wall 53 is clamped to the upper edge of the tray side wall 13, and the cover 51 and the supporting plate 11 together form an accommodating space S, the turntable 31 is located in the accommodating space S; the guide assembly 54 has a guide seat 541, a guide cover 542 and a guide tube 543, the guide seat 541 is disposed on the top part of the cover 52 and extends upward relative to the top part of the cover 52. The entrance 55 is disposed on the guide cover 542. The guide tube 543 is along the tangential direction of the shaft 14 and extends from top to bottom. The inner space of the guide tube 543 can be connected to the outside through the extension opening 55. The guide cover 542 is disposed on the guide seat body 541 and the guide tube 543 is located in the guide seat. Inside the body 541, the accommodating space S can communicate with the outside through the guide tube 543 and the extension port 55.

It should be noted that in the first preferred embodiment, when the bottom 12 of the tray is placed on a horizontal plane (not shown in the figure), the distance between the upper edge of the side wall 33 of the turntable and the top 52 of the cover is Defined as a first allowable distance (not marked in the figure), the diameter of the three balls 21 minus the vertical distance from the lower edge of the ball slide 34 to the upper edge of the three first accommodating grooves 15 is defined as a second The allowable distance (not marked in the figure), the first allowable distance (not marked in the figure) is smaller than the second allowable distance (not marked in the figure). When the first preferred embodiment is turned upside down, the side wall 33 of the turntable is displaced downward by the first allowable distance (not marked in the figure), so that the upper edge of the side wall 33 of the turntable is placed on the top 52 of the cover, and the ball The vertical distance from the lower edge of the slide 34 to the upper edge of the three first accommodating grooves 15 is smaller than the diameter of the three balls 21, thereby preventing the three balls 21 from turning over in the first preferred embodiment. Depart from the condition outside the three first accommodating grooves 15.

The structure of the first preferred embodiment has been described above, and the operation state of the first preferred embodiment will be described next.

At the beginning of the storage operation, the first preferred embodiment uses the bottom 12 of the tray to be placed on a horizontal plane (not shown in the figure), and then, through the operation of the user, a flexible external pipeline (in the figure) (Not shown) one end is aligned with the extension port 55, and when the user pushes the external pipeline (not shown in the figure) from the extension port 55 into the accommodating space S, the external pipeline (not shown in the figure) receives The guide tube 543 is restricted so that the external pipeline (not shown in the figure) extends from top to bottom into the accommodating space S relative to the tangential direction of the rotating shaft 14; when the external pipeline (not shown in the figure) After extending into the accommodating space S for a certain distance, the external pipeline (not shown in the figure) is located at the end of the accommodating space S and abuts against the side wall 33 of the turntable or the bottom 32 of the turntable.

It should be noted that the material or structure of the external pipeline (not shown in the figure) has certain rigidity, such as the detection tube of the endoscope. The external pipeline (not shown in the figure) can act on the direction of its length extension. The force is transmitted to an object in contact with it, and a frictional force is generated between its surface and the surface of the object.

When the external pipeline (not shown in the figure) is located at the top of the accommodating space S against the side wall 33 of the turntable or the bottom 32 of the turntable, the user continues to operate the external pipeline (not shown in the figure) to extend into the container. The space S is set so that the external pipeline (not shown in the figure) generates a component of force on the turntable 31 along the tangential direction of the turntable side wall 33 at the contact point of the outer pipeline (not shown) with the turntable side wall 33 or the turntable bottom 32 (in the figure) Not shown), where the component force (not shown in the figure) is when the user pushes the external pipeline (not shown in the figure), the force exerted by the user on the external pipeline (not shown in the figure) acts on the The bottom 32 of the turntable or the sidewall 33 of the turntable is generated, and the detailed generation method of the component force (not shown in the figure) is well known to those with ordinary knowledge in the technical field to which the present invention belongs, and will not be repeated.

It should be noted that although the external pipeline (not shown in the figure) and the turntable 31 will slide relatively, the first preferred embodiment can also accommodate the external pipeline (not shown in the figure). However, in order to clearly express the operating state of the first preferred embodiment, the following description will be made under the condition that the external pipeline (not shown in the figure) and the turntable 31 will not slide relatively.

When the external pipeline (not shown in the figure) generates the component force (not shown in the figure) on the turntable 31, the turntable 31 is acted on by the component force (not shown in the figure) and relative to the supporting plate 11 and the cover. The body 51 rotates, and at the same time, the external pipeline (not shown in the figure) continues to extend into the accommodating space S; wherein, since the bottom 32 of the turntable is supported by the three balls 21, when the turntable 31 rotates relative to the support plate 11 The three rolling balls 21 are restricted by the three first accommodating grooves 15 and driven by the turntable bottom 32 to roll in the three first accommodating grooves 15 respectively.

By the user's operation, when the length of the external pipeline (not shown in the figure) extending into the accommodating space S reaches the length that the user wants to store, the user can stop applying the external pipeline (not shown in the figure) Stop the external pipeline (not shown in the figure) from extending into the accommodating space S, and the accommodating operation can be completed.

With the three rolling balls 21, the friction force that the turntable 31 has to overcome when rotating is small, and compared to the conventional hub described in the prior art, the price of the three balls 21 is less than that of the square turntable plus Because of the price of the ball bearing, the first preferred embodiment can achieve the effect of smoothly rotating the turntable 31 relative to the cover 51 and the supporting plate 11 at a lower cost.

Please refer to FIGS. 7 to 10, a hub 60 provided by the second preferred embodiment of the present invention is basically the same as the first preferred embodiment disclosed above, except that:

In the second preferred embodiment, the supporting plate 11 further has three second accommodating grooves 61, the three second accommodating grooves 61 are disposed at the bottom 12 of the supporting plate, the three first accommodating grooves 15 and the The three second accommodating grooves 61 respectively have the notch 151, and the second accommodating groove 61 is separated from the rotating shaft 14 by a second predetermined distance D2 and encircles the rotating shaft 14 equiangularly, wherein the first predetermined distance D1 and the rotating shaft 14 The second predetermined distance D2 is not equal.

The number of the balls 21 is six, which are respectively placed in the three first accommodating grooves 15 and the three second accommodating grooves 61 and partially expose the notch 151.

It should be noted that, in order to clearly express the effect of the present invention, the number of the balls 21 described in the specification and the scope of the patent application is the number of the first accommodating groove 15 and the number of the second accommodating groove 61 And the number of the second accommodating groove 61 is at least three, and the number of the balls 21 placed in the at least three second accommodating grooves 61 is also at least three; in actual implementation, according to use requirements or The situation is different. As shown in FIG. 9, the number of the second accommodating groove 61 can be greater than the number of the balls 21 placed in the second accommodating groove 61, and in the second preferred embodiment, the number of the balls 21 is placed in the The number of the balls 21 of the second accommodating groove 61 and the number of the second accommodating groove 61 is three as an example, but it is not limited thereto.

Thereby, the bottom 32 of the turntable is supported by the six balls 21, and the three first accommodating grooves 15 and the three second accommodating grooves 61 are arranged in concentric inner and outer imaginary rings, compared with the first preferred embodiment , The structure of the second preferred embodiment has better carrying capacity, allowing users to accommodate heavier pipelines.

The rest of the structure of the second preferred embodiment and its achievable effects are the same as those of the first preferred embodiment disclosed above, and will not be repeated.

10: Hub 11: Acceptance 12: Bottom of the tray 13: The side wall of the bearing plate 14: shaft 15: The first holding tank 151: Notch D: The first predetermined distance 21: Ball 31: turntable 32: Bottom of the turntable 321: Shaft hole 33: Turntable side wall 34: Ball slide 35: Extension 41: Bearing 42: Pipe Department 43: Wing 51: Lid 52: The top of the cover 53: cover side wall 54: Guide component 541: Guide seat body 542: Guide cover 543: guide tube 55: Entrance S: accommodating space 60: Hub 61: second holding tank D2: second predetermined distance

Figure 1 is a combined perspective view of the first preferred embodiment of the present invention. Figure 2 is an exploded view of the first preferred embodiment of the present invention. Figure 3 is a top view of the partial structure of the first preferred embodiment of the present invention, showing the internal structure of the retainer. Fig. 4 is a top view of the partial structure of the first preferred embodiment of the present invention, showing another implementation aspect of the internal structure of the retainer. Figure 5 is a bottom view of the partial structure of the first preferred embodiment of the present invention, showing the structure of the bottom of the turntable. Figure 6 is a cross-sectional view taken along line 6-6 in Figure 1. Figure 7 is an exploded view of the second preferred embodiment of the present invention. Fig. 8 is a top view of the partial structure of the second preferred embodiment of the present invention, showing the internal structure of the retainer. Fig. 9 is a top view of the partial structure of the second preferred embodiment of the present invention, showing another implementation aspect of the internal structure of the retainer. Fig. 10 is a cross-sectional view of the second preferred embodiment of the present invention. The position of the section line in this figure is the same as that of the section line 6-6 in Fig. 1.

10: Hub

11: Acceptance

12: Bottom of the tray

13: The side wall of the bearing plate

14: shaft

15: The first holding tank

21: Ball

31: turntable

32: Bottom of the turntable

33: Turntable side wall

35: Extension

41: Bearing

51: Lid

52: The top of the cover

53: cover side wall

54: Guide component

541: Guide seat body

542: Guide cover

543: guide tube

55: Entrance

Claims (8)

A kind of cable reel, including: A supporting plate having a supporting plate bottom, a supporting plate side wall, a rotating shaft and at least three first accommodating grooves, the supporting plate side wall being arranged on the outer edge of the supporting plate bottom and extending upward relative to the supporting plate bottom; The rotating shaft and the at least three first accommodating grooves are arranged at the bottom of the supporting plate and the rotating shaft is extended upward relative to the bottom of the supporting plate. The at least three first accommodating grooves respectively have an upward notch, and the at least three The first accommodating slot is separated from the rotating shaft by a first predetermined distance and equiangularly surrounds the rotating shaft; Balls equal to the number of the at least three first accommodating grooves, the plurality of balls are respectively placed in the at least three first accommodating grooves and partly expose the notch; A turntable has a turntable bottom and a turntable side wall, the turntable side wall is arranged on the outer edge of the turntable bottom and extends upward relative to the turntable bottom, the turntable bottom has a shaft hole, the turntable is placed on the plurality of balls and the turntable The rotating shaft passes through the shaft hole, and the bottom of the turntable is supported by the plurality of balls; and A cover body having a cover body top, a cover body side wall and an extension port, the cover body side wall is arranged on the outer edge of the cover body top and extends downward relative to the cover body top, the top end of the rotating shaft Fixed on the top of the cover body and the lower edge of the cover body side wall is clamped to the upper edge of the support plate side wall, and the cover body and the support plate jointly form an accommodating space, and the turntable is located in the accommodating space, The accommodating space can be communicated with the outside through the entrance. As described in the first item of the scope of patent application, wherein: the cover body further has a guide assembly, the guide assembly has a guide seat body, a guide cover and a guide tube, and the guide seat body is arranged on the cover body The top part extends upward relative to the top part of the cover body, the extension port is arranged on the guide cover, the guide tube is arranged on the guide cover obliquely from top to bottom along the tangent direction of the rotating shaft, and the The inner space of the guide tube can be connected to the outside through the extension port, the guide cover is arranged on the guide base and the guide tube is located in the guide base, and the accommodating space can be connected to the outside through the guide tube and the extension port . As described in item 1 of the scope of patent application, wherein: the supporting plate further has at least three second accommodating grooves, the at least three second accommodating grooves are arranged at the bottom of the supporting plate, and the at least three first accommodating grooves The groove and the at least three second accommodating grooves respectively have the notch, and the at least three second accommodating grooves are separated from the rotating shaft by a second predetermined distance and surround the rotating shaft equiangularly, wherein the first predetermined distance and the first predetermined distance 2. The predetermined distances are not equal. For example, the hub set forth in item 3 of the scope of patent application, wherein: the number of the plurality of balls is the sum of the number of the at least three first accommodating grooves and the number of the at least three second accommodating grooves, and the plurality of balls are respectively placed In the at least three first accommodating grooves and the at least three second accommodating grooves, the notch is partially exposed. As described in the first item of the scope of patent application, wherein: the turntable further has a ball slide, the ball slide is arranged at the bottom of the turntable, the ball slide is ring-shaped and located in the at least three first accommodating Between the groove and the bottom of the turntable, the plurality of balls abut against the bottom of the turntable and are partially located in the ball slide. As described in the first item of the scope of patent application, the hub further includes a bearing, the bearing has a tube part and a wing part, the tube part extends outward from the outer edge of one end of the wing part, and the tube part is sleeved On the shaft, and the inner tube wall of the tube abuts against the shaft; the outer tube wall of the tube abuts on the surface of the shaft hole at the bottom of the turntable; the wing is placed on the bottom of the support plate facing upward The wing is located between the bottom of the turntable and the bottom of the supporting plate, and the wing supports the bottom of the turntable upward. The hub according to item 1 of the scope of patent application, wherein: the turntable further has an extension, the extension is disposed at the bottom of the turntable and extends upward relative to the bottom of the turntable, wherein the shaft passes through the shaft hole And part of it is located in the extension. As described in item 7 of the scope of patent application, the hub further includes a bearing, the bearing has a tube part and a wing part, the tube part extends outward from the outer edge of one end of the wing part, and the tube part is sleeved On the shaft, and the inner tube wall of the tube abuts against the shaft; the outer tube wall of the tube abuts on the extension part and the bottom of the turntable is located on the surface of the shaft hole; the wing is placed on the bearing plate The bottom faces the upper surface, and the wing is located between the bottom of the turntable and the bottom of the supporting plate, and the wing supports the bottom of the turntable upward.

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