TWI774123B - Anti-drop adapter sleeve - Google Patents

Abstract

An anti-detachment adapter sleeve, comprising: a driving part, an end surface of the driving part extends axially inwardly with a driving hole, the driving hole has a plurality of axially extending hole walls, at least two are located on the opposite side A radially concave anti-separation groove is respectively formed on the hole wall, and the end face of the driving part is axially concave inward and extends a circularly inclined first guiding inclined surface. The top of the first guiding inclined surface is connected to the driving part. The outer diameter of the first guiding inclined surface is larger than the diameter of the driving hole, the top end of each hole wall of the driving hole and the bottom end of the first guiding inclined surface are respectively formed with a second inclined surface. a guiding inclined surface, and the second guiding inclined surface is directly adjacent to the first guiding inclined surface; an action portion is axially connected with the driving portion, and an action hole extends axially recessed on the end surface of the action portion; In order to prevent the self-separation from the driving head, increase the safety, improve the smoothness of the driving process, reduce the waste of materials and enhance the rigidity.

Description

Anti-drop adapter sleeve

This creation is related to the accessories of the driving tool, and more specifically, it refers to an anti-falling adapter sleeve.

Press, when a nut is to be tightened or loosened, in order to make the force more labor-saving and accurate, an adapter sleeve is generally temporarily connected between the nut and a driving tool. The rotational power generated by the driving tool is transmitted to the nut through the adapter sleeve, so as to achieve the effect of tightening or loosening the nut.

However, as shown in the first and second figures, it is a socket tool 1 disclosed by Chinese Patent Certificate No. I690392. The socket tool 1 is used for socketing the driving head 91 of a driving tool 90. , a retaining ring 92 (C-shaped retaining ring) is arranged on the outer peripheral surface of the driving head 91, the socket tool 1 includes a joint part 2 and an action part 3, and the joint part 2 has a concave from the top surface. An accommodating groove 4, the side surface 5 of the accommodating groove 4 is a plane parallel to the axial direction (axial center line), and the bottom surface 6 of the accommodating groove 4 is a tapered surface (ie, an inclined surface). The accommodating groove 4 A retaining ring 92 capable of accommodating the driving head 91, the engaging portion 2 has a polygonal hole 7 axially extending through the accommodating groove 4, the polygonal hole 7 can accommodate the driving head 91, and the acting portion 3 has a Action hole 8, the action hole 8 can be sleeved on a nut. Therefore, when the driving head 91 is combined with the socket tool 1, the retaining ring 92 of the driving head 91 is first accommodated by the accommodating groove 4 of the socket tool 1 (as shown in the first figure), So that the user can align the polygonal hole 7 by simply rotating the driving head 91, and after the alignment, push the driving head 91 together with the retaining ring 92 into the polygonal hole 7 (as shown in the second figure). shown), so as to achieve the function of quickly completing the socket.

Of course, although the retaining ring 92 of the lift head 91 is forced to be tightened in the polygonal hole 7 of the socket tool 1, the hole wall of the polygonal hole 7 is a straight wall, and the retaining ring 92 is generally slightly C-shaped retaining ring with elastic deformation ability, so when the driving head 91 rotates, if the retaining ring 92 is slightly compressed and deformed, it will It is very likely that the retaining ring 92 together with the driving head 91 will come out from the polygonal hole 7 of the socket tool 1 (ie the socket tool 1 and the driving head 91 will be disengaged), which will not only cause unsmooth problems during use. In a more serious case, the socket tool 1 may be thrown out at a high speed, thereby causing injury to the user, thereby causing safety concerns.

Furthermore, in the socket tool 1 disclosed above, the function of the accommodating groove 4 is mainly to accommodate the front end of the retaining ring 92 on the driving head 91 in advance, so as to facilitate the subsequent rotational alignment and push-in. However, the side surface 5 of the accommodating groove 4 is a plane design extending parallel to the axial direction (axial line), which will cut off too much material during manufacturing, which will not only cause waste of material and reduce the strength in rigidity, but also Therefore, the driver head 91 and the socket tool 1 may be easily shaken and loosened when they rotate synchronously.

In view of this, in order to improve the prior art, the conventional socket tool may be detached from the driving tool by itself, resulting in doubts about safety, unsmooth driving process, and the side surface of the accommodating groove is in a plane design parallel to the axis line. However, there are problems such as waste of materials and reduction of strength in rigidity. Therefore, the present invention provides an anti-falling adapter sleeve for connecting a driving head of a driving tool, the driving head is provided with a retaining ring, and the anti-falling adapter sleeve includes: a driving part, the driving part A drive hole extends axially inward from the end face of the part, the drive hole has a plurality of axially extending hole walls, and at least two hole walls located on opposite faces are respectively formed with a radially recessed anti-separation groove. The de-grooving is a blind groove and the axial section is a rectangle. The end face of the driving part is axially recessed inward and extends a first guiding inclined surface with a circular inclination. The top end of the first guiding inclined surface is connected to the driving part. The outer diameter of the first guiding inclined surface is larger than the diameter of the driving hole, the top end of each hole wall of the driving hole and the bottom end of the first guiding inclined surface are respectively formed with an inclined second guiding surface. A guide slope, and the second guide slope is directly adjacent to the first guide slope, wherein, when the anti-falling adapter sleeve is connected with the driving head of the driving tool, the driving head follows the first guide slope. The guiding inclined surface and the second guiding inclined surface enter into the driving hole, so that the retaining ring is clamped in the anti-separation groove; an action part is axially connected with the driving part, and the end face of the action part is axially connected Sag extension has a role Holes; in order to prevent self-separation from the driving head, increase safety, improve the smoothness of the driving process, reduce material waste and enhance rigidity.

The present invention further provides an anti-falling adapter sleeve for connecting a driving head of a driving tool, the driving head is provided with a retaining ring, and the anti-falling adapter sleeve includes: a driving part, an end surface of the driving part There is a drive hole extending axially inward from the top, the drive hole has a number of axially extending hole walls, at least two hole walls located on opposite sides are respectively formed with a radially recessed anti-separation groove, the anti-separation groove is A blind slot with a rectangular axial section, a guide slope extending obliquely and gradually expanding outward is formed between the top of each hole wall and the end face of the drive portion, the guide slope extending outward is a virtual The angle between the extension line and the end face of the driving part is between 40 degrees and 80 degrees, wherein, when the anti-falling adapter sleeve is connected with the driving head of the driving tool, the driving head enters the driving head along the guiding slope The retaining ring is snapped into the anti-separation groove in the hole; an acting part is axially connected with the driving part, and the end face of the acting part is axially recessed and extends with an acting hole; It has the functions of self-separation, increased safety, improved smoothness of the driving process, reduced material waste and enhanced rigidity.

"Knowledge"

1: Socket tool

2: Joint

3: Action Department

4: accommodating slot

5: side

6: Bottom

7: Polygon hole

8: Action hole

90: Drive Tools

91: drive head

92: Buckle

"First Example of This Creation"

100: Anti-drop adapter sleeve

10: Drive Department

11: Drive hole

111: Hole Wall

12: The first guide slope

13: Second guide slope

14: Anti-drop groove

20: Action Department

21: Action hole

90: Drive Tools

91: drive head

92: Buckle

"Second Example of This Creation"

200: Anti-drop adapter sleeve

30: Drive Department

31: Drive hole

311: Hole Wall

34: Anti-drop groove

35: Guide slope

40: Action Department

41: Action hole

The first figure is a schematic structural diagram of a conventional socket tool.

The second figure is a schematic diagram of the operation of the combination of the conventional socket tool and the driving tool shown in the first figure.

The third figure is a perspective view of the first preferred embodiment provided by the present invention.

FIG. 4 is a perspective cross-sectional view of the embodiment shown in FIG. 3 .

Figure 5 is an axial cross-sectional view of the embodiment shown in Figure 3.

The sixth figure and the seventh figure are schematic diagrams of the operation of the embodiment shown in the third figure when it is connected with a driving tool.

The eighth figure is a perspective view of the second preferred embodiment provided by the present invention.

Figure 9 is an axial cross-sectional view of the embodiment shown in Figure 8.

In order to enable your review committee to have a further understanding and recognition of the features and characteristics of this creation, the following examples are listed and described with the drawings as follows:

Please refer to Figures 3 to 7, it is an anti-disconnection adapter sleeve 100 provided by the first preferred embodiment of the present invention, which is manufactured in one piece, and mainly includes a driving part 10 at one end and a The driving part 10 is integrally connected to the acting part 20 at the other end. Please refer to the third to fifth figures. The driving part 10 has a driving hole extending axially inward from its end surface (ie, the free end surface). 11. The driving hole 11 is a regular quadrilateral hole (or called a quadrangular hole) with four axially extending hole walls 111 . The driving portion 10 extends axially inwardly from the same end face with a circularly inclined first guiding inclined surface 12 . The outer diameter of the lead slope 12 is larger than the diameter of the driving hole 11 . A second inclined guiding inclined surface 13 is formed between the top end of each hole wall 111 of the driving hole 11 and the bottom end of the first guiding inclined surface 12, and the second guiding inclined surface 13 is connected to the first guiding inclined surface 13. The lead bevel 12 adjoins directly. Each hole wall 111 of the driving hole 11 is respectively provided with a radially concave detachment-preventing groove 14 . The detachment-preventing groove 14 is a blind groove and has a rectangular axial section.

Please refer to Figures 3 to 5, the acting portion 20 is integrally connected to the driving portion 10 and coaxially. An acting hole 21 extends axially inward from the end face (ie the free end face) of the acting portion 20 . The action hole 21 is a hexagonal hole. The outer diameter of the acting part 20 is the same as the outer diameter of the driving part 10 . The acting hole 21 communicates with the driving hole 11 .

Therefore, the above is the introduction of the various components of the anti-detachment adapter sleeve 100 and the combination thereof provided by the first preferred embodiment of the present invention, and then its use characteristics are introduced as follows:

First, please refer to Figures 6 and 7. When the present invention is to be connected with the driving head 91 of a driving tool 90, since the peripheral surface of the driving head 91 adjacent to one end is provided with a retaining ring 92, the The retaining ring 92 is inserted inward along the first guiding slope 12, and after passing through the first guiding slope 12, it is then inserted into the second guiding slope 13 (as shown in the sixth figure), Rotate this creation a little bit to make the driving head 91 align with the driving hole 11 . Then apply force to push the driving head 91 together with the driving buckle 92 into the driving hole 11, and let the buckle The ring 92 is snapped into the anti-separation groove 14 (as shown in FIG. 7 ), so that the driving head 91 is forced into the driving hole 11 . In this way, the action hole 21 of the action portion 20 can be socketed with a nut, bolt or nut (not shown in the figure), so that the driving tool 90 can be driven through the anti-falling adapter sleeve 100 of the present invention. The rotational power generated by the driving head 91 is transmitted to the nut, bolt or nut to facilitate loosening or tightening operations. When the user wants to separate the creation from the driving head 91, the user pulls the creation with a little force, so that the buckle 92 is retracted first to escape from the anti-separation groove 14, and then until it is released from the Outside the drive hole 11.

In this way, since the present invention has a radially recessed anti-separation groove 14 on each hole wall 111 of the driving hole 11, the present invention can loosen or tighten the nut, bolt, or nut. During the operation, the retaining ring 92 will be kept in the anti-detachment groove 14 to prevent the present invention from being detached from the driving head 91 by itself.

Therefore, since each hole wall 111 of the driving hole 11 has a radially recessed anti-separation groove 14, the retaining ring 92 can be stuck in the anti-separation groove 14 to prevent the The creation is separated from the driving head 91 by itself, so as to have more comprehensive safety, so as to make the operation process smoother.

Next, in the present invention, between the end face of the driving portion 10 and the hole wall 111 of the driving hole 11 , the first guiding inclined surface 12 and the connected second guiding inclined surface 13 are arranged in sequence to facilitate the placement of the retaining ring 92 The design of two sets of inclined planes is used to reduce the material that needs to be cut, which can not only reduce the waste of materials, but also strengthen the rigidity of the whole. It can also reduce the loosening and shaking between the author and the driving head, so as to reduce the occurrence of dangerous situations.

In the above-mentioned embodiment, as shown in the fifth figure, the angle θ1 between the virtual extension line of the first guiding inclined surface 12 extending outward and the end surface of the driving portion 10 is smaller than the virtual extending line of the second guiding inclined surface 13 extending outward. The angle θ 2 between the extension line and the end face of the driving portion 10 , and the angle θ 1 between the virtual extension line extending outward from the first guiding slope 12 and the end face of the driving portion 10 are between 15 degrees and 45 degrees. The angle θ 2 between the virtual extension line extending outward from the second guiding slope 13 and the end surface of the driving portion 10 is between 40 degrees and 80 degrees. The above-mentioned first guide slope 12 and the The inclination angle range of the second guiding inclined surface 13 is to simultaneously have the functions of guiding, reducing material removal, and reducing looseness with the driving head.

In addition, although in the above-mentioned embodiment, the action hole is a hexagonal hole. But in fact, the action hole can also be any one of a four-cornered hole, an octagonal hole, a twelve-pointed hole or a hexagonal star-shaped hole.

Secondly, although in the above-mentioned embodiment, the outer diameter of the driving portion and the acting portion are the same, in fact, the outer diameter of the driving portion can also be larger than the outer diameter of the acting portion, or the outer diameter of the driving portion is smaller than that of the acting portion The outer diameter, or the non-communication between the driving hole and the action hole, will not affect the effect of this creation.

Although in the above-mentioned embodiment, the driving hole of the driving portion is provided with an anti-separation groove on each hole wall. But in fact, it is also possible to only have anti-separation grooves on the hole walls of two opposite faces, which is enough to achieve the effect of this creation, and make this creation applicable to other different types of driving heads, making this creation more applicable. widely.

Please refer to the eighth and ninth figures, which are an anti-disconnection adapter sleeve 200 provided by the second preferred embodiment of the present invention. Like the above-mentioned embodiment, it includes a driving part 30 and an action part 40, wherein:

The driving portion 30 has a driving hole 31 extending axially inward from its end surface (ie, the free end surface). The driving hole 31 is a regular quadrilateral hole and has four axially extending hole walls 311 . Each hole wall 311 A guide slope 35 extending obliquely and gradually expanding outward is formed between the top of the guide slope 35 and the end face of the driving part 30 , and the angle θ between the virtual extension line of the guiding slope 35 extending outward and the end face of the driving part 30 3 is between 40 degrees and 80 degrees. At least two opposite hole walls 311 of the driving hole 31 respectively have a radially recessed anti-separation groove 34 .

Please refer to the eighth to ninth figures, the acting part 40 is integrally connected to the driving part 30 coaxially, and an acting hole 41 extends axially inwardly from the end face (ie the free end face) of the acting part 40 . The action hole 41 is a hexagonal hole.

Therefore, although the guide slope with a single slope is presented in this embodiment, it is different from the combination structure of the first guide slope and the second guide slope with double slopes disclosed in the first embodiment. However, they can all achieve the same effect.

The above disclosure is only a preferred embodiment provided by this creation, and is not intended to limit the scope of implementation of this creation. All the equivalent changes made by those skilled in the art according to this creation shall belong to this creation. scope of coverage.

100: Anti-drop adapter sleeve

10: Drive Department

11: Drive hole

111: Hole Wall

12: The first guide slope

13: Second guide slope

14: Anti-drop groove

20: Action Department

21: Action hole

Claims (9)

An anti-falling adapter sleeve is used for connecting a driving head of a driving tool, the driving head is provided with a retaining ring, and the anti-falling adapter sleeve includes: a driving part, the end face of the driving part is inwardly shafted There is a driving hole extending toward the depression, the driving hole has a plurality of axially extending hole walls, at least two hole walls located on opposite sides are respectively formed with a radially recessed anti-separation groove, the anti-separation groove is a blind groove and The axial section is a rectangle, and the end face of the driving part is axially recessed inward and extends a first guiding inclined surface that is inclined in a circular shape. The top end of the first guiding inclined surface is in contact with the end surface of the driving part. The outer diameter of a guiding inclined surface is larger than the diameter of the driving hole, and a second inclined guiding inclined surface is respectively formed between the top end of each hole wall of the driving hole and the bottom end of the first guiding inclined surface, and the second guiding inclined surface is respectively formed. The guide slope is directly adjacent to the first guide slope, wherein, when the anti-displacement adapter sleeve is connected with the drive head of the driving tool, the drive head follows the first guide slope, the second guide slope, and the second guide slope. The guiding inclined surface enters the driving hole, so that the retaining ring is clamped in the anti-separation groove; an action portion is axially connected with the driving portion, and an action hole is axially recessed on the end face of the action portion. The anti-falling adapter sleeve according to claim 1, wherein the driving hole is a regular quadrilateral hole with four axially extending hole walls. The anti-separation adapter sleeve according to claim 2, wherein each hole wall of the driving hole has an anti-separation groove respectively. The anti-falling adapter sleeve according to claim 1, wherein the action hole is any one of a four-cornered hole, a hexagonal hole, an octagonal hole, a twelve-pointed hole or a hexagonal star-shaped hole. The anti-falling adapter sleeve according to claim 1, wherein the angle between the virtual extension line extending outward of the first guiding inclined surface and the end face of the driving portion is smaller than the virtual extension extending outward of the second guiding inclined surface The angle between the line and the end face of the driving part, the virtual extension line extending outward from the first guiding slope and the The angle between the end faces of the driving portion is between 15 degrees and 45 degrees; the angle between the virtual extension line extending outward from the second guiding inclined surface and the end faces of the driving portion is between 40 degrees and 80 degrees. An anti-falling adapter sleeve is used for connecting a driving head of a driving tool, the driving head is provided with a retaining ring, and the anti-falling adapter sleeve includes: a driving part, the end face of the driving part is inwardly shafted There is a driving hole extending toward the depression, the driving hole has a plurality of axially extending hole walls, at least two hole walls located on opposite sides are respectively formed with a radially recessed anti-separation groove, the anti-separation groove is a blind groove and The axial section is a rectangle, and between the top of each hole wall and the end face of the driving part, a guiding slope extending obliquely and gradually expanding outward is respectively formed, and the virtual extension line extending outward of the guiding slope and the The angle between the end faces of the driving part is between 40 degrees and 80 degrees, wherein, when the anti-falling adapter sleeve is connected with the driving head of the driving tool, the driving head enters the driving hole along the guiding slope, so that the The retaining ring is snapped into the anti-separation groove; an action portion is axially connected with the driving portion, and an action hole is axially recessed on the end surface of the action portion. The anti-falling adapter sleeve according to claim 6, wherein the driving hole is a regular quadrilateral hole with four axially extending hole walls. The anti-falling adapter sleeve as claimed in claim 7, wherein each hole wall of the driving hole has an anti-falling groove respectively. The anti-disengagement adapter sleeve according to claim 6, wherein the action hole is any one of a four-cornered hole, a hexagonal hole, an octagonal hole, a twelve-pointed hole or a hexagonal star-shaped hole.

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