TWI391210B - Dual-purpose connector structure - Google Patents

Description

Dual-purpose joint structure

The invention relates to a technical field applied to a joint of a gas, a power tool or a hand tool, in particular to a dual-purpose type which can directly connect the sleeve and the tool head without being easily detached, is simple to assemble and assemble, and has good cardging effect. Connector structure.

A commonly used dual-purpose joint structure, as shown in Taiwan Patent No. M303792, is mainly used in a trigger groove or a radially inserted C-shaped buckle on the triggering head, and then by the buckle The card protrusion at one end of the ring elastically abuts against the inner hole wall of the sleeve hole of the sleeve to prevent the sleeve from falling off easily, and elastically bundles the insertion portion of the tool head by the buckle. In order to prevent the tool head from being easily detached. Thereby, it can be made to have the effect of being applicable to the sleeve and the tool head.

However, in the conventional dual-purpose joint structure, the arc-shaped knob is bent at the end of the C-shaped buckle, which is very difficult to position and process. Moreover, it is very difficult to insert the C-shaped buckle radially in the ring fitting groove inside the trigger groove or in the ring fitting groove which is radially sleeved on the pulling head, and it requires special tools. Can be reached. Therefore, it is more troublesome in production and assembly. In particular, the sleeve is only abutted by one of the buckles on the buckle, and the effect of the click is not good, for example, the sleeve is not additionally provided with a corresponding card slot for the card to be clamped. It is only a commonly used sleeve, and the manner of the click is still easy to disengage the sleeve. If a card protrusion is respectively disposed at both ends of the C-shaped buckle, the buckle ring will become semi-circular, and cannot be radially embedded in the ring fitting groove or the radial sleeve inside the trigger groove. It is arranged in the ring fitting groove on the pulling head. In addition, since the insertion portion of the tool head is a regular hexagon with respect to the trigger groove, when the C-shaped buckle is elastically bundled on the insertion portion of the tool head, such as each of the insertion portions The corners are not specially provided with corresponding card slots for their clamping, but only for the commonly used plugs, the buckles and the plugs only have contact points at only six corners, and thus The tool head can also easily be detached. Therefore, the conventional dual-purpose joint structure has a good jamming effect, and the corresponding sleeve and the special position on the tool head need to separately process the corresponding card slot structure, and thus the system greatly increases the cost. And it is therefore not suitable for the commonly used sleeves and tool heads.

In view of the above, the inventors have intensively conceived the above-mentioned problems, and actively researched and improved the trial and development to design the present invention.

The main object of the present invention is to provide a dual-purpose joint structure which can directly feed the sleeve and the tool head without being easily detached, and has the advantages of simple assembly and assembly, good carding effect and the like.

The dual-purpose joint structure of the present invention comprises a joint body and a spring piece. The joint body has a square-shaped one-piece stud for a sleeve, and the end surface of the insert has an axial direction and a hexagonal one-shaped groove for inserting a plug of a tool head . Each of the opposite sides of the stud has a perforation therethrough to the recess. Each of the two opposite groove walls of the groove has a groove, and the groove is coaxial with the groove, and the end surface of the groove extends to an end surface of the column. The elastic piece is embedded in the recessed groove, and comprises a connecting piece and two side pieces extending in the same direction from the two ends of the connecting piece, wherein the two side pieces are respectively disposed in the two grooves and have opposite opening and opposite The elastic force of the clamp. Each of the side sheets has an outer convex portion and at least one inner convex portion. The outer convex portion protrudes outwardly from the outer side surface of the insert post, and the inner convex portion protrudes from the groove wall of the recessed groove.

In this way, the outer convex portion and the inner convex portion on the two sides of the elastic piece can respectively abut against the inner hole wall of the sleeve hole of the sleeve and the outer side wall of the insertion portion of the tool head, thereby making the sleeve And the tool head can not be easily detached from the column due to the elastic topping or elastic clamping of the two outer protrusions or the two inner protrusions. Thus, the present invention can have dual utility for sleeve or tool head socketing. Further, the present invention is also very easy to bend the outer convex portion and the inner convex portion on the straight side piece. In particular, as long as the open end of the elastic piece is slightly pressed toward the opposite inner side, the elastic piece can be easily embedded in the groove of the insertion hole, and the elastic piece is embedded in the two sides on the two sides of the positioning piece. The outer protrusions are caught in the two perforations so that they do not get detached from the stud as the tool head is pulled out. Therefore, the fabrication and assembly of the joint structure of the present invention is simpler than the conventional joint structure, and the relative cost can be greatly reduced and the efficiency of production and assembly can be improved. In particular, the present invention utilizes the outer convex portion of the two side sheets to be elastically abutted against the opposite side inner hole walls of the sleeve hole of the sleeve, and the inner convex portion of the two side sheets is relatively elastically clamped to the tool. The two opposite outer side walls of the plug portion of the head are so that the opposite sides are abutted and clamped in such a manner that they have a good click effect compared with the prior art. Moreover, since the two outer convex portions are in line contact with the inner wall of the sleeve hole, and the inner convex portions are in line contact with the outer side wall of the insertion portion, The utility model has the advantages of good jamming function, and it is not necessary to additionally provide a card slot for the cassette on the sleeve hole or the plug portion, so the invention can be applied to the commonly used sleeve and the tool head.

Referring to FIG. 1 to FIG. 4, it is a first embodiment of the present invention, wherein the dual-purpose joint structure of the present invention comprises a joint body 10 and a elastic piece 20. among them:

The joint body 10 has a square-shaped stud 11 which can be sleeved by a sleeve hole 31 of a sleeve 30. The end surface of the stud 11 has an in-line and one-sided hexagonal recess 12 for inserting the insertion portion 41 of the tool head 40, and the two opposite groove walls of the recess 12 are parallel to the stud 11 Two opposite outer sides. The two opposite outer sides of the stud 11 each have a through hole 13 extending therethrough. Each of the two opposite groove walls of the recessed groove 12 has a groove 14 respectively. The groove 14 is in the same axial direction as the groove 12, and extends through the through hole 13 to an end surface of the column 11 in an open shape.

The elastic piece 20 is formed by bending one of the elongated metal pieces and is disposed in the insertion groove 12. The elastic piece 20 includes a connecting piece 21 located at the bottom of the insertion groove 12 and two side pieces 22 extending in the same direction from both ends of the connecting piece 21. The two side sheets 22 are respectively located in the two grooves 14 and have elastic forces which are relatively open and relatively clamped. Each side panel 22 includes an inner segment 23, a convex arc segment 24 and an open segment 25. One end of the inner connecting portion 23 is located in the groove 14 and is connected to the end of the connecting piece 21, and the other end is inclined inwardly to protrude from the groove wall of the fitting groove 12. The convex arc segment 24 has an arc shape and protrudes outward from the outer side of the stud 11 by the through hole 13 to form an outer convex portion 26. One end of the convex arc segment 24 is connected to the other end of the inner connecting portion 23 such that the connecting portion forms an inner convex portion 27 protruding inwardly from the groove wall of the recessed groove 12, and the other end of the convex arc portion 24 is Located in the slot 14. The open section 25 is located in the slot 14 and is connected to the other end of the convex arc section 24.

It can be seen in the third figure that when the sleeve hole 31 of the sleeve 30 is sleeved on the stud 11, the inner hole wall of the sleeve hole 31 will have the convex portion of the two side sheets 22. 26 is pressed inwardly to be retracted into the two perforations 13, respectively, thereby causing the two side sheets 22 to swing inwardly relative to each other. In this way, the two side pieces 22 are elastically biased outwardly so that the two outer convex portions 26 abut against the inner wall of the sleeve hole 31, so that the sleeve 30 can be caused by the two outer convex portions. The elastic top of the 26 is abutted and does not easily fall off the stud 11.

It can be seen in the fourth figure that when the insertion portion 41 of the tool head 40 is inserted into the insertion groove 12, the outer side wall of the insertion portion 41 will be convex on the two side sheets 22. The portion 27 is pushed outwardly so that the two side panels 22 are relatively outwardly expanded. In this way, the two side pieces 22 are elastically biased inwardly to cause the two inner convex portions 27 to abut against the outer side wall of the insertion portion 41, so that the tool head 40 can be caused by the two convex portions. The elastic portion of the portion 27 acts without being easily detached from the stud 11.

According to the above structure, the present invention can have the dual-purpose effect that the sleeve 30 or the tool head 40 can be directly sleeved without being easily detached, thereby making it more convenient in operation and use. Moreover, the bending of the elastic piece 20 of the present invention is relatively simple. In particular, as long as the open end of the elastic piece 20 is slightly pressed toward the opposite inner side, it can be easily embedded in the insertion hole 12 and in the groove 14, and the elastic piece 20 is embedded in the positioning. The two outer convex portions 26 on the side panels 22 are caught in the two through holes 13, so that they do not come out of the stud 11 as the tool head 40 is pulled out. Therefore, the fabrication and assembly of the joint structure of the present invention is relatively simple and rapid, and can greatly reduce the cost and improve the efficiency of production and assembly. In particular, the present invention utilizes the outer convex portion 26 on the two side panels 22 to abut the elastic top against the opposite inner wall walls of the sleeve hole 31 of the sleeve 30, and utilizes the inner convex portion of the two side sheets 22. 27 is relatively elastically clamped on the opposite outer side walls of the insertion portion 41 of the tool head 40, and the clamping force and the click effect produced by the tool body 40 are relatively good. Moreover, the two outer convex portions 26 are in line contact with the inner wall of the sleeve hole 31, and the inner convex portions 27 are in line contact with the outer side wall of the insertion portion 41. on. Therefore, the present invention has a good latching effect, and it is not necessary to additionally provide a card slot for the latching on the sleeve hole 31 or the plug portion 41, so the present invention can be applied to the commonly used sleeve 30 and the tool head. 40.

Referring to the fifth embodiment, the second embodiment of the present invention is substantially the same as the first embodiment. The difference is that the inner connecting portion 23 of each side panel 22 of the elastic piece 20 of the second embodiment is different. It is located in the groove 14 and has one end connected to the end of the connecting piece 21. The convex arc segment 24 has an arc shape and protrudes outwardly from the outer side surface of the stud 11 by the through hole 13 to form an outer convex portion 26. One end of the convex arc segment 24 is connected to the other end of the inner connecting portion 23, and the other end of the convex arc portion 24 protrudes inwardly from the groove wall of the fitting groove 12. One end of the open section 25 is connected to the other end of the convex arc section 24 such that the joint forms an inner convex portion 27 which protrudes inwardly from the groove wall of the recessed groove 12. The other end of the open section 25 extends into the slot 14.

Referring to the sixth embodiment, the third embodiment of the present invention is substantially the same as the first embodiment, and the difference is that the inner connecting portion 23 of each side panel 22 of the elastic piece 20 of the third embodiment has the same structure. One end is located in the groove 14 and is connected to the end of the connecting piece 21, and the other end is inclined inwardly to protrude from the groove wall of the fitting groove 12. The convex arc segment 24 has an arc shape and protrudes outward from the outer side of the stud 11 by the through hole 13 to form an outer convex portion 26. One end of the convex arc segment 24 is connected to the other end of the inner connecting portion 23 such that the connecting portion forms an inner convex portion 27 which protrudes inwardly from the groove wall of the recessed groove 12, and the other end of the convex arc segment 24 The inner wall protrudes from the groove wall of the recessed groove 12. One end of the open section 25 is connected to the other end of the convex arc section 24 such that the joint forms an inner convex portion 27 which protrudes inwardly from the groove wall of the recessed groove 12. The other end of the open section 25 extends into the slot 14. The elastic force of the tool head 40 can be further increased by the two inner convex portions 27.

Referring to the seventh embodiment, the fourth embodiment of the present invention is substantially the same as the first embodiment. The difference is that the inner connecting portion 23 of each side panel 22 of the elastic piece 20 of the fourth embodiment is different. It is in a glyph shape. One end of the inner connecting portion 23 is located in the groove 14 and is connected to the end of the connecting piece 21, and the central convex portion protrudes inwardly from the groove wall of the fitting groove 12 to form an inner convex portion 27, and the other end It is tied in the groove 14. The convex arc segment 24 has an arc shape and protrudes outward from the outer side surface of the stud 11 by the through hole 13 to form an outer convex portion 26. One end of the convex arc segment 24 is connected to the other end of the inner connecting portion 23, and the other end of the convex arc segment 24 is located in the groove 14. The open section 25 is located in the slot 14 and is connected to the other end of the convex arc section 24.

Referring to the eighth embodiment, the fifth embodiment of the present invention is substantially the same as the first embodiment. The difference is that the inner connecting portion 23 of the elastic piece 20 of the fifth embodiment is located in the groove 14. And one end is connected to the end of the connecting piece 21. The convex arc segment 24 has an arc shape and protrudes outward from the outer side surface of the stud 11 by the through hole 13 to form an outer convex portion 26. One end of the convex arc segment 24 is connected to the other end of the inner connecting portion 23, and the other end of the convex arc segment 24 is located in the groove 14. The opening section 25 has a U-shape. One end of the opening section 25 is connected to the other end of the convex arc section 24. The central protrusion protrudes inwardly from the groove wall of the recess 12 to form an inner convex portion 27. The other end of 25 is located in the slot 14.

The ninth embodiment is a sixth embodiment of the present invention, and the structure thereof is substantially the same as that of the first embodiment. The difference is that the inner connecting portion 23 of the elastic piece 20 of the sixth embodiment has a U-shape. One end of the connecting portion 23 is located in the groove 14 and is connected to the end of the connecting piece 21, and the central convex portion protrudes inwardly from the groove wall of the fitting groove 12 to form an inner convex portion 27, and the other end is located therein. In the groove 14. The convex arc segment 24 has an arc shape and protrudes outward from the outer side surface of the stud 11 by the through hole 13 to form an outer convex portion 26. One end of the convex arc segment 24 is connected to the other end of the inner connecting portion 23, and the other end of the convex arc segment 24 is located in the groove 14. The opening section 25 has a U-shape. One end of the opening section 25 is connected to the other end of the convex arc section 24. The central protrusion protrudes inwardly from the groove wall of the slot 12 to form an inner convex portion 27, and the other end position In the groove 14.

Referring to the tenth figure, it is a first use aspect of the present invention, wherein the joint structure of the present invention is applicable to the gas/power tool 50 for a sleeve 30 or a tool head 40 sleeve. Connect or plug.

Referring to FIG. 11 is a second use aspect of the present invention, wherein the joint structure of the present invention is applicable to a hand tool 60 such as a wrench, a driver, etc., for a sleeve 30 or A tool head 40 is socketed or plugged.

In summary, since the present invention has the above advantages and practical value, and has not seen the same or similar technology published or disclosed before, the present invention has met the novelty and progressive requirements of the invention patent, and applied according to law. .

10. . . Joint body

11. . . Column

12. . . Insert slot

13. . . perforation

14. . . Groove

20. . . shrapnel

twenty one. . . Connecting piece

twenty two. . . Side piece

twenty three. . . Inline segment

twenty four. . . Convex arc

25. . . Open section

26. . . Outer convex

27. . . Inner convex

30. . . Sleeve

31. . . Set of holes

40. . . Tool head

41. . . Plug-in

50. . . Gas/power tool

60. . . Hand tool

The first figure is a perspective exploded view of the first embodiment of the present invention.

The second figure is an enlarged schematic view of a combined cross section of the first embodiment of the present invention.

The third figure is a schematic view of the first embodiment of the present invention when the sleeve is sleeved.

The fourth figure is a schematic view of the first embodiment of the present invention when the tool head is inserted.

The fifth figure is a second embodiment of the present invention.

The sixth figure is a third embodiment of the present invention.

The seventh figure is a fourth embodiment of the present invention.

The eighth figure is a fifth embodiment of the present invention.

The ninth diagram is a sixth embodiment of the present invention.

The tenth figure is the first use aspect of the present invention.

The eleventh figure is a second use aspect of the present invention.

10. . . Joint body

11. . . Column

12. . . Insert slot

13. . . perforation

14. . . Groove

20. . . shrapnel

twenty one. . . Connecting piece

twenty two. . . Side piece

twenty three. . . Inline segment

twenty four. . . Convex arc

25. . . Open section

26. . . Outer convex

27. . . Inner convex

Claims (8)

The utility model relates to a dual-purpose joint structure, which comprises: a joint body, which is provided with a sleeve with a polygonal shape for a sleeve, and the end surface of the insert has the same axial direction and a polygonal groove for one slot. The inserting portion of the tool head is inserted, and each of the opposite outer side surfaces of the insert has a through hole penetrating into the inserting groove, and each of the opposite groove walls of the inserting groove has a groove, the groove and the groove The slot is the same as the axial direction, and the end surface extending through the through hole to the insert is open; and a resilient piece is disposed in the recess, including a connecting piece and extending in the same direction from both sides of the connecting piece a sheet, the two side sheets are respectively disposed in the two grooves and have elastic forces relative to the opening and the opposite clamping, each side sheet has an outer convex portion and at least one inner convex portion, the outer convex portion is formed by the perforation An outer surface of the stud is protruded outwardly, and the inner protrusion protrudes inwardly from the groove wall of the recess. The dual-purpose joint structure according to claim 1, wherein the elastic piece is formed by bending a metal piece, and each side piece of the elastic piece comprises an inner connecting section, a convex arc section and an open section. One end of the inner connecting portion is located in the groove and is connected to an end portion of the connecting piece, and the other end of the inner connecting portion extends obliquely inwardly to protrude the groove wall of the fitting groove, and the convex arc portion is arc-shaped and Forming the outer convex portion by protruding outwardly from the outer side surface of the stud, the one end of the convex arc segment connecting the other end of the inner connecting portion to form the inner convex portion, the convex arc portion The other end is located in the slot, and the opening segment is located in the slot and connects to the other end of the convex arc segment. The dual-purpose joint structure according to claim 1, wherein the elastic piece is formed by bending a metal piece, and each side piece of the elastic piece comprises an inner connecting section, a convex arc section and an open section. The inner connecting portion is located in the groove and one end is connected to the end portion of the connecting piece. The convex arc portion has an arc shape and protrudes outwardly from the outer side surface of the insert column to form the outer convex portion. One end of the arc segment is connected to the other end of the inner connecting segment, and the other end of the convex arc segment protrudes inwardly from the groove wall of the recessed groove, and one end of the open segment is connected to the other end of the convex arc segment to form the joint The inner protrusion has the other end of the open section extending into the groove. The dual-purpose joint structure according to claim 1, wherein the elastic piece is formed by bending a metal piece, and each side piece of the elastic piece comprises an inner connecting section, a convex arc section and an open section. One end of the inner connecting portion is located in the groove and is connected to the end of the connecting piece, and the other end of the inner connecting portion is inclined inwardly to extend out of the groove wall of the engaging groove, and the convex arc portion is arc-shaped and The through hole protrudes outwardly from the outer side surface of the stud to form the outer convex portion, and one end of the convex arc segment is connected to the other end of the inner connecting portion to form the inner convex portion at the joint, and the convex arc portion is further One end of the slot is protruded inwardly from the slot wall, and one end of the open section is connected to the other end of the convex arc to form the inner protrusion, and the other end of the open section extends into the slot. The dual-purpose joint structure according to claim 1, wherein the elastic piece is formed by bending a metal piece, and each side piece of the elastic piece comprises an inner connecting section, a convex arc section and an open section. The inner connecting portion has a U-shape, and one end of the inner connecting portion is located in the groove and is connected to an end portion of the connecting piece, and a central convex portion of the inner connecting portion protrudes inwardly from the groove wall of the embedded groove Forming the inner convex portion, the other end of the inner connecting portion is located in the groove, the convex arc portion is arc-shaped and protrudes outwardly from the outer side surface of the insert post to form the outer convex portion, One end of the convex arc segment is connected to the other end of the inner connecting segment, and the other end of the convex arc segment is located in the groove, and the opening segment is located in the groove and is connected to the other end of the convex arc segment. The dual-purpose joint structure according to claim 1, wherein the elastic piece is formed by bending a metal piece, and each side piece of the elastic piece comprises an inner connecting section, a convex arc section and an open section. The inner connecting portion is located in the groove and one end is connected to the end portion of the connecting piece. The convex arc portion has an arc shape and protrudes outwardly from the outer side surface of the insert column to form the outer convex portion. One end of the arc segment is connected to the other end of the inner connecting segment, and the other end of the convex arc segment is located in the groove, the open segment is U-shaped, and one end of the open segment is connected to the other end of the convex arc segment, the opening The central protrusion of the segment protrudes inwardly from the groove wall of the groove to form the inner protrusion, and the other end of the opening segment is located in the groove. The dual-purpose joint structure according to claim 1, wherein the elastic piece is formed by bending a metal piece, and each side piece of the elastic piece comprises an inner connecting section, a convex arc section and an open section. The inner connecting portion has a U-shape, and one end of the inner connecting portion is located in the groove and is connected to an end portion of the connecting piece, and a central convex portion of the inner connecting portion protrudes inwardly from the groove wall of the embedded groove Forming the inner convex portion, the other end of the inner connecting portion is located in the groove, the convex arc portion is arc-shaped and protrudes outwardly from the outer side surface of the insert post to form the outer convex portion, the convex portion One end of the arc segment is connected to the other end of the inner connecting segment, and the other end of the convex arc segment is located in the groove, the open segment is U-shaped, and one end of the open segment is connected to the other end of the convex arc segment, the opening The central protrusion of the segment protrudes inwardly from the groove wall of the groove to form the inner protrusion, and the other end of the opening segment is located in the groove. The dual-purpose joint structure according to any one of claims 1 to 7, wherein the insert is in a square shape, the recess is a regular hexagon, and the two opposite grooves of the groove are parallel Two opposite outer sides of the stud.