TWM453751U - Improved structure of hollow shaft - Google Patents

Description

Improved structure of hollow shaft

The present invention relates to an improved structure of a hollow rotating shaft, and more particularly to a hollow rotating shaft structure which can simplify processing, improve assembly yield and reduce production cost.

It is seen that there is a hollow shaft structure for the wire to pass through. More commonly, as shown in Fig. 1, it mainly comprises: a pivot member 5 and a pivot joint 6 and the like, wherein the pivot member 5 has an integrally formed pivotal connection. The portion 51 and the connecting portion 54 are coupled to an externally preset opposing pivoting member, and an outwardly projecting stop portion 55 is disposed between the pivoting portion 51 and the connecting portion 54. An axially extending through hole 53 is defined in the pivoting portion 51. The pivoting seat 6 has a sleeve portion 61 that can be fitted on the outer peripheral side of the pivoting portion 51, and is disposed on the sleeve portion 61. There is a slit 62 extending in the axial direction, so that the sleeve portion 61 can maintain a tight elastic force, and a joint portion 63 is provided on one side of the sleeve portion 61 for being connected with an external preset pivoting member. In combination, the through hole 53 is configured to pass through the wire 4 for connecting the signal or the power source, and the spiral groove 52 extending in the spiral shape may be provided on the outer peripheral side of the pivot portion 51 as needed.

In the above structure, since the pivoting portion 51 and the connecting portion 54 of the pivoting member 5 are integrally formed, the structural strength is sufficient to overcome the radial force and the axial force during pivoting to ensure the use. The quality of the operation; however, in practical application, the integrally formed pivoting portion 51 and the connecting portion 54 are difficult to fabricate, and the cost is not easily reduced, and the yield of the finished product is not easily improved, which is extremely inconsistent with economic benefits.

In addition, there is a new patent of "Hybrid shaft hinge structure" of the Republic of China Patent Publication No. M416315, which mainly includes a first assembly frame, a second assembly frame, and a rotating shaft connecting the first assembly frame and the second assembly frame. The first shaft frame and the second assembly frame respectively have a first sleeve portion and a second sleeve portion sleeved on the rotating shaft, and the first assembly frame and the second assembly frame respectively have a first sleeve portion and a second sleeve portion The first shaft and the second joint portion are respectively provided with a first joint portion and a second joint portion, so that the first assembly frame is rotated relative to the second assembly frame and the rotating shaft, thereby Improve the strength of the structure of the hollow shaft hinge when rotating, and the stability of the rotation.

However, in the above structure, since the rotating shaft is assembled at one end with the first joint portion and the second joint portion of the second assembly frame, no other joint or stop structure is provided at the other end of the rotating shaft. Therefore, in actual use, the rotating shaft may have a tendency to slide away from the second assembly frame during the rotation process, which causes the first and second assembly frames to be loosened during operation, thereby forming a lack of application.

In view of the above shortcomings of the hollow shaft structure, the creators have researched and improved the shortcomings of these shortcomings, and finally have this creation.

The main purpose of this creation is to provide an improved structure of a hollow rotating shaft, which can effectively simplify the processing difficulty, thereby improving the production capacity stability and improving the product yield.

Another object of the present invention is to provide an improved structure of a hollow rotating shaft, which has a simple composition structure, can reduce the production cost of the components, and improve the overall economic performance.

Another object of the present invention is to provide an improved structure of a hollow rotating shaft, which can be combined in different combinations according to different needs or processing conditions, and has a wide range of application to enhance design variability.

In order to achieve the above object and effect, the technical means adopted by the present invention include: a pivot shaft having an axial through hole, and a pivot joint and a plurality of joint protrusions at the two ends of the pivot; a pivoting seat combined with an external pivoting member, the pivoting seat has a fitting portion that can be tightly coupled to the pivoting portion; and a connecting member combined with a predetermined external pivoting member And a positioning hole is disposed on the circumferential side of the positioning hole, and a plurality of coupling grooves corresponding to the coupling protrusions are respectively disposed, and a positioning portion fixedly connected between the at least one bonding protrusion and the partial contact portion of the coupling groove is disposed.

According to the above structure, the positioning portion is formed by press deformation of the outer end portion of the coupling protrusion.

According to the above structure, the positioning portion is a welded portion.

According to the above structure, the sleeve portion is provided with a slit extending in the axial direction.

According to the above structure, the pivot is provided with a stop portion protruding toward the periphery between the coupling protrusion and the pivot portion.

According to the above structure, the outer peripheral side of the pivoting portion is provided with a spirally extending inclined groove.

According to the above structure, the pivoting seat has a joint portion, and the pivoting member is coupled to the joint portion.

In order to achieve a more specific understanding of the above objectives, effects and features of this creation, the following figures are illustrated as follows:

Referring to Figures 2 to 5, it can be seen that the structure of the first embodiment of the present invention mainly includes: a pivoting seat 1, a pivot 2 and a connecting member 3, wherein the pivot 2 has an axially extending center. The through hole 23 is provided with a pivoting portion 21 at one end of the pivoting shaft 2, and a plurality of axially extending engaging convex portions 24 are disposed at the other end of the pivoting shaft 2, and the connecting convex portion 24 and the pivoting portion 21 are disposed between the connecting hole portion There is a stop portion 25 that protrudes toward the periphery, and a spiral groove 22 extending in a spiral shape is disposed on the outer peripheral side of the pivot portion 21.

The pivoting seat 1 has a sleeve portion 11 that can be tightly coupled to the pivoting portion 21, and the sleeve portion 11 is provided with a slit 12 extending in the axial direction so that the sleeve portion 11 can maintain a sleeve. The elastic portion further extends outside the fitting portion 11 with a joint portion 13 which is combined with an external predetermined pivoting member (not shown).

The connecting member 3 is combined with an externally-predicted relative pivoting member (not shown), and has a positioning hole 31 which can be fitted to one end of the pivoting portion 2 with the engaging convex portion 24, and the positioning hole 31 is formed around the positioning hole 31. The side is provided with a plurality of coupling grooves 32 corresponding to the respective coupling protrusions 24, and at least a partial contact portion of each of the coupling protrusions 24 and the coupling groove 32 is provided with a fixing and fixing positioning portion 241. In this embodiment, the positioning hole is provided. An outwardly expanding beveled surface 33 is disposed on an end side of each of the coupling slots 32 away from the pivoting socket 1 , and the positioning portion 241 is embedded and stamped by the outer end of the coupling protrusion 24 . a portion of the beveled surface 33 such that the pivot 2 and the coupling member 3 are formed with a combination of axial and radial positioning; and a wire connecting the pivoting member and the relative pivoting member to a signal or power source 4 can pass through the central through hole 23 of the pivot 2 .

Referring to FIG. 6, it can be seen that the structure of the second embodiment of the present invention mainly includes: a pivot 20, and the same pivoting seat 1, the connecting member 3 and the like as the first embodiment, wherein the pivot The shaft 20 has a central through hole 203 extending axially. A pivoting portion 201 is disposed at one end of the pivoting shaft 20, and the other end of the pivoting shaft 20 is provided with a plurality of axially extending engaging convex portions 204. A locking portion 205 protruding toward the periphery is disposed between the pivoting portion 21, and a spirally extending inclined channel 202 is disposed on the outer peripheral side of the pivoting portion 201, and the pivot 20 and the pivoting seat 1 and the connecting portion are connected The assembly mode of the member 3 is the same as that of the first embodiment; the difference is only that the at least partial contact portions of the coupling protrusions 204 and the coupling groove 32 are provided with a fixed positioning portion 206, and the positioning portion 206 is a The fixed joint portion of the welding process is such that the pivot 20 and the joint member 3 are formed to have a combination of axial and radial positioning.

In summary, the improved structure of the hollow shaft of the present invention can achieve the advantages of simple processing, improved assembly yield and reduced production cost. It is a novel and progressive creation, and the application for a new type of patent is legally required; The above description is only for the description of the preferred embodiments of the present invention. Any changes, modifications, alterations or equivalents that are extended by the technical means and scope of the present invention should also fall within the scope of the patent application of the present invention. Inside.

1, 6‧‧‧ pivoting seat

11, 61‧‧‧ Included

12, 62‧‧‧ gap

13, 63‧‧‧ Linkage Department

2, 20‧‧‧ pivot

21, 201, 51‧‧ ‧ pivotal department

22, 202, 52‧‧‧ oblique channel

23, 203‧‧‧Central through hole

24, 204‧‧‧ combined with convex

241, 206‧‧ ‧ Positioning Department

25, 205, 55‧‧ ‧ stop

3‧‧‧Links

31‧‧‧Positioning holes

32‧‧‧ Combination slot

33‧‧‧Beveled noodles

4‧‧‧ wire

5‧‧‧ pivot parts

53‧‧‧through holes

54‧‧‧Connecting Department

Figure 1 is a schematic exploded view of a hollow shaft.

Fig. 2 is an exploded perspective view showing the first embodiment of the present creation.

Fig. 3 is a combined appearance view of the first embodiment of the present creation when the positioning portion processing has not been completed.

Fig. 4 is a combined sectional view of the first embodiment of the present invention when the positioning portion processing has not been completed.

Fig. 5 is a sectional view showing the combination of the first embodiment of the present invention after the positioning portion is processed.

Figure 6 is a combined cross-sectional view of the second embodiment of the present invention after the positioning portion is processed.

1‧‧‧ pivoting seat

13‧‧‧Connecting Department

2‧‧‧ pivot

21‧‧‧ pivotal department

22‧‧‧ Oblique Channel

23‧‧‧Central through hole

24‧‧‧Combined convex

241‧‧‧ Positioning Department

25‧‧‧stops

3‧‧‧Links

4‧‧‧ wire

Claims (13)

An improved structure of a hollow shaft, comprising at least:
a pivotal shaft having an axial through hole, and a pivoting portion and a plurality of coupling protrusions at the two ends of the pivot shaft;
a pivoting seat combined with an external pivoting member, the pivoting seat having a fitting portion that can be tightly coupled to the pivoting portion;
a connecting member combined with a predetermined external pivoting member has a positioning hole, and a plurality of coupling grooves corresponding to the respective engaging convex portions are respectively disposed on the circumferential side of the fixed hole, and at least one combined convex portion is combined with A positioning portion fixedly connected between the partial contact portions of the groove is provided. The improved structure of the hollow shaft according to claim 1, wherein the positioning portion is formed by press deformation of the outer end portion of the joint protrusion. The improved structure of the hollow shaft according to claim 1, wherein the positioning portion is a welded portion. The improved structure of the hollow shaft according to claim 1 or 2 or 3, wherein the pivot is provided with a stop portion projecting from the periphery between the joint protrusion and the pivot portion. The improved structure of the hollow shaft according to claim 1 or 2 or 3, wherein the sleeve portion is provided with a slit extending in the axial direction. The improved structure of the hollow shaft according to claim 4, wherein the sleeve portion is provided with a slit extending in the axial direction. The improved structure of the hollow shaft according to claim 1 or 2 or 3, wherein the outer peripheral side of the pivot portion is provided with a spirally extending inclined groove. The improved structure of the hollow rotating shaft according to claim 4, wherein the outer peripheral side of the pivoting portion is provided with a spirally extending inclined groove. The improved structure of the hollow rotating shaft according to claim 5, wherein the outer peripheral side of the pivoting portion is provided with a spirally extending inclined groove. The improved structure of the hollow shaft according to claim 1 or 2 or 3, wherein the pivoting seat has a joint portion, and the pivoting member is coupled to the joint portion. The improved structure of the hollow shaft according to the fourth aspect of the invention, wherein the pivoting seat has a joint portion, and the pivoting member is coupled to the joint portion. The improved structure of the hollow shaft according to claim 5, wherein the pivoting seat has a joint portion, and the pivoting member is coupled to the joint portion. The improved structure of the hollow shaft according to claim 7, wherein the pivoting seat has a joint portion, and the pivoting member is coupled to the joint portion.