CN201003535Y - Anti-disengagement structure of rotating shaft - Google Patents

Abstract

The utility model relates to an anti-disengaging structure of pivot, it includes: a shaft sleeve member which is a frame body, wherein the hollow cylinder body at the bottom of the shaft sleeve member is divided into at least two tightening rings by at least one cutting groove, one end of each tightening ring radially extends to form a frame piece, and the other end of each tightening ring and the frame piece form an opening; a shaft rod piece, which is a rod body, one end of the shaft rod piece is provided with a connecting part, the other end of the shaft rod piece axially extends to form a shaft column, the surface of the shaft column is provided with at least one convex ring corresponding to the groove, and two sides of the shaft column are respectively adjacent to a friction section; after the shaft columns are sleeved with the tightening rings, the friction sections are respectively positioned in the corresponding tightening rings, and the convex rings are accommodated in the cutting grooves.

Description

Anti-disengagement structure of the shaft

technical field

The utility model relates to a rotating shaft, in particular to an anti-disengagement structure of the rotating shaft, which not only provides the function of radial friction, but also provides a stable combination of the shaft rod and the collar to avoid the separation of the two.

Background technique

According to general consumer electronics products with a flip cover, such as portable computers, mobile phones, electronic dictionaries and portable audio-visual playback devices, etc., the main body is generally placed in the lower half, and the hinge is connected to the upper half. The cover is connected so that the cover can be opened and closed relative to the main body. Therefore, the rotating shaft is also a major factor in determining the quality of the above products. In fact, a good rotating shaft, in addition to the necessary stagnation effect, prevents it from slack due to repeated operations. Of course, in operation, it should also eliminate abnormal noises to avoid users feeling uncomfortable during operation.

Generally speaking, in order to obtain the expected stagnant positioning effect, the traditional socket-type shaft requires very high precision. It mainly forms a shaft hole on a female connector, and a shaft through the shaft of the male connector is horizontally opened. The groove provides proper elasticity of the shaft so as to fit into the shaft hole so that frictional torque is formed between the shaft post and the shaft hole. However, due to the existence of the slot, the friction part of the shaft post in the shaft hole is in the vertical direction between the two ends of the slot. When repeated operations, the two friction parts will be worn out very quickly, leading to looseness.

Based on the lack of the aforementioned sleeve-type rotating shaft, the Chinese patent No. 200520113162.2 "rotating shaft and its anti-extrusion structure" owned by the patent assignee of the present utility model provides an anti-extrusion structure of the rotating shaft. A double-opened sleeve is formed on at least one side, and the wall surface of the sleeve is respectively provided with a staggered groove and a separation groove in the horizontal direction and the vertical direction, and the sleeve is divided into an inner tightening section and an outer side. In addition, the shaft column on one side of the shaft member is inserted into the sleeve, and a buckle is recessed in the position corresponding to the tightening section of the sleeve, and the two form a clip, while the other There is a connecting part on the side; the shaft rotates in the sleeve, so that the friction torque occurs between the shaft and the socket section, and the buckle is clamped by the tightening section so that the two will not come out. This patent can obtain the anti-falling-out function of the rotating shaft as expected, but the structure of the sleeve type rotating shaft is not all the same, and it is impossible to respond one by one. Therefore, for different structures, it is necessary to find another way. This is a problem that the industry must face together.

Utility model content

The purpose of the present utility model is to provide an anti-disengagement structure of the rotating shaft, in order to overcome many shortcomings of the above-mentioned sleeve-type rotating shaft's anti-disengagement structure that is difficult to design and cumbersome in process.

In order to achieve the above purpose, the utility model provides the anti-disengagement structure of the rotating shaft, which includes:

A shaft kit is a frame body, the hollow cylinder at the bottom of which is divided into at least two tightening rings through at least one split groove, one end of each tightening ring radially extends a frame piece, and the other end forms an opening with the frame piece;

A shaft member is a rod body, one end has a connecting portion, and the other end is axially extended with a shaft column. At least one protruding ring is protruded from the surface of the shaft column corresponding to the position of the split groove, and its two sides are respectively adjacent to a friction section ;

After the shaft column is socketed with each tightening ring, each friction section is respectively located in the corresponding tightening ring, and the convex ring is accommodated in the split groove.

In the anti-disengagement structure of the rotating shaft, the connecting portion of the frame piece of the shaft sleeve and the shaft member has at least one engaging hole.

The anti-disengagement structure of the rotating shaft, wherein the connecting portion of the shaft member is a milled cylinder or a polygonal cylinder.

In the anti-disengagement structure of the rotating shaft, the side edge of the frame piece of the shaft sleeve is combined with the rear end of a bracket.

In the anti-disengagement structure of the rotating shaft, the two ends of each protruding ring respectively have a beveled surface and a retaining edge.

In the anti-disengagement structure of the rotating shaft, the surface of each friction section has a curved oil groove.

In the anti-disengagement structure of the rotating shaft, a chamfer is provided on the front end of the shaft.

In the anti-disengagement structure of the rotating shaft, the openings of the at least two tightening rings are arranged in the same direction or in opposite directions.

From the implementation of the present utility model, the effect obtained is that, after the shaft member and the shaft sleeve are sleeved and assembled, in addition to providing the due radial friction function, the protruding ring and the collar of the shaft member The anti-disengagement design of the split groove between the tightening rings of the parts prevents the two parts from falling out or separating. At the same time, the oil groove in the friction section can accommodate lubricating grease, so that the shaft column and each tightening ring can be fully lubricated. effect to eliminate the abnormal sound caused by dryness.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the rotating shaft of the present invention.

Fig. 2 is a cross-sectional view of the utility model after assembly.

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 .

Fig. 4 is a perspective view of the utility model after assembly.

Detailed ways

In order to further disclose the specific technical content of the present utility model, first please refer to the accompanying drawings.

As shown in FIGS. 1 to 3 , basically, the shaft structure of the present invention is composed of a shaft kit 1 and a shaft member 2 .

The shaft sleeve 1 is a frame, and the hollow cylinder 11 at the bottom is divided by at least one split groove 12 to form at least two tightening rings 13 . The tightening rings 13 are formed by bending, one end extends radially to a frame 14 , and the other end forms an opening 15 with the frame 14 , so that each tightening ring 13 has the function of elastic expansion and contraction. As shown in the figure, in order to form different torsion changes, the openings 15 of the two tightening rings 13 can be set in the same direction or in opposite directions. The frame 14 is combined with an article, such as a cover body, and as shown in the figure, the frame 14 has at least one engaging hole 16 to be locked on the cover body by using a known combination component, such as a screw passing through. Alternatively, as shown in the figure, the frame piece 14 is laterally connected to the rear end of a bracket 3 so as to be combined with the cover body.

The shaft member 2 is a rod, and the connecting part 21 on one side is combined with an article, such as the main body. The polygonal column can be inserted and positioned on the main body, but not limited thereto, the connecting portion 21 can also be provided with at least one joint hole, so as to utilize known combination components, such as screws, to pass through and be locked in a thing.

The connecting portion 21 is provided with a collar 22 on the other side, which is used as abutment when it is socketed with a tightening ring 13, and the collar 22 extends axially with a shaft post 23, but this is a known technology, here I do not intend to repeat them. The utility model is different from the known technology in that at least one protruding ring 24 is protruded on the surface of the shaft column 13 corresponding to the position of the split groove 12, and its two ends have a beveled surface 25 and a retaining edge 26 respectively, and are respectively adjacent to a protruding ring 24. Friction section 27. As shown in the figure, a curved oil groove 28 is formed on the surface of each friction section 27 for accommodating lubricating grease and providing lubricating effect. In addition, the front end of the axle column 23 is provided with a chamfered portion 29 to facilitate insertion into each tightening ring 13 of the axle sleeve 1 .

When the utility model is actually assembled, first, the shaft column 23 of the shaft member 2 can be easily inserted into each tightening ring 13 of the sleeve shaft member 1 by using the chamfered part 29 and the beveled surface 25, so that the shaft column 23 Each friction segment 27 is located in the corresponding tightening ring 22, and the protruding ring 24 is located between the cut grooves 12, and the side edge of the tightening ring 12 is supported by the retaining edge 26, which completes the assembly of the utility model. At this time, as shown in FIG. 4 , the shaft column 23 of the shaft member 2 will not escape from the tightening ring 13 of the shaft sleeve 1 .

What is described in the utility model is a kind of preferred embodiment. For example, all partial changes or modifications derived from the technical idea of the utility model and easily deduced by those skilled in the art will not depart from the utility model. scope of patent rights.

Claims (8)

1. An anti-disengagement structure of a rotating shaft, characterized in that it comprises: A shaft kit is a frame body, the hollow cylinder at the bottom of which is divided into at least two tightening rings through at least one split groove, one end of each tightening ring radially extends a frame piece, and the other end forms an opening with the frame piece; A shaft member is a rod body, one end has a connecting portion, and the other end is axially extended with a shaft column. At least one protruding ring is protruded from the surface of the shaft column corresponding to the position of the split groove, and its two sides are respectively adjacent to a friction section ; After the shaft column is socketed with each tightening ring, each friction section is respectively located in the corresponding tightening ring, and the convex ring is accommodated in the split groove. 2. The anti-disengagement structure of the rotating shaft according to claim 1, wherein the connecting portion of the frame piece of the shaft sleeve and the shaft member has at least one engaging hole. 3. The anti-disengagement structure of the rotating shaft according to claim 1, wherein the connecting portion of the shaft member is a milled cylinder or a polygonal cylinder. 4. The anti-disengagement structure of the rotating shaft according to claim 1, wherein the side edge of the frame piece of the shaft sleeve is combined with the rear end of a bracket. 5. The anti-disengagement structure of the rotating shaft as claimed in claim 1, wherein the two ends of each protruding ring respectively have a beveled surface and a retaining edge. 6. The anti-disengagement structure of the rotating shaft according to claim 1, wherein the surface of each friction section has a curved oil groove. 7. The anti-disengagement structure of the rotating shaft according to claim 1, wherein a chamfer is provided on the front end of the shaft post. 8. The anti-disengagement structure of the rotating shaft according to claim 1, wherein the openings of the at least two tightening rings are arranged in the same direction or in opposite directions.

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