TWI738608B - Tool extension - Google Patents

Abstract

A tool extension is provided, including a main body, a swing member and a locking structure. The main body has a connecting channel. The swing member is disposed on the main body. A driving member is disposed through the swing member and is movable between a first position and a second position. When the driving member is in the first position, the driving member is not extended into the connecting channel, the swing member is able to swing relative to the main body. When the driving member is in the second position, the driving member is extended into the connecting channel, the swing member is not able to swing relative to the main body.

Description

Tool kit

The present invention is related to the body, especially a tool kit.

Since there are many types of objects to be rotated, such as screws, screws, nuts, screwdrivers, etc., it is necessary to use the main body connector for adaption when using. The structure of the traditional adapter body is simple, only one end is provided with an assembly hole and the other end is a plug-in part. With the increase in various use requirements, the field of people has developed a universal body connector to replace the traditional adapter body . Among them, the universal body can swing relative to the base through the universal drive head to drive the object to be rotated at various angles, so it can be applied to various use environments.

However, such universal joints still have shortcomings in actual use. For example, but not limited to, various aspects such as use stability, bonding firmness, and universal switchability need to be further strengthened to provide users with peace of mind and safety. To use. Therefore, it is necessary to provide a novel and progressive tool kit to solve the above-mentioned problems.

The main purpose of the present invention is to provide a tool kit, which can be swayed or kept in position as required by the swinging member, and the driving rod can be reliably locked to avoid loosening through the locking structure.

To achieve the above objective, the present invention provides a tool kit, which includes a body, a swinging piece, and a locking structure. The main body includes a connecting channel and a connecting space that communicate with each other along a first direction; the swing member includes a head body, a connecting rod and an insertion hole, the connecting rod is connected to the head body, and the head body is A polygonal spherical head, the head body can be selectively movably accommodated in the assembling space so that the connecting rod can selectively swing relative to the body, the insertion hole penetrates the head body and the connecting rod, and the insertion hole includes There is a relatively first end and a second end, the second end communicates with the connecting channel, and the first end is for a driving rod to be inserted in a first position and a second position to define the driving rod. It is the first position when it protrudes from the second end, and it is defined as the second position when the drive rod protrudes from the second end and extends into the connecting passage, and the connecting passage is limited in the first direction perpendicular to the To stop the driving rod, when viewed from the first direction, the edge of the insertion hole has a non-circular contour; the locking structure includes at least one positioning hole, at least one positioning bead, and a first elasticity in the same number And a kit, the at least one positioning hole penetrates the connecting rod and laterally communicates with the insertion hole, the at least one positioning bead is movably limited to the at least one positioning hole, the kit is sleeved on the connecting rod and It can be moved to a locked position and a release position. When the set is moved to the locked position, a first rib of the set presses the at least one positioning bead to protrude into the insertion hole for positioning the drive rod, When the kit moves to the release position, a chamber of the kit corresponds to the portion that contains the at least one positioning bead so that the at least one positioning bead does not protrude into the insertion hole for releasing the driving rod, and the first The elastic member is connected between the sleeve and the connecting rod to drive the sleeve to move toward the locking position normally.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to FIGS. 1 to 8, which show a first embodiment of the present invention. The tool kit of the present invention includes: a main body 1, a swing member 2 and a locking structure 3.

The body 1 includes a connecting channel 12 and a set of connecting spaces 13 that communicate with each other along a first direction 5. In the first embodiment, the body further includes a set of connecting spaces 11, and the connecting channel 12 is connected to the set of connecting spaces. Between the space 13 and the socket space 11, in the first direction 5 perpendicular to the first direction 5, the maximum radial dimension of the assembling space 13 is greater than the maximum radial dimension of the connecting passage 12, and the maximum diameter of the socket space 11 The radial dimension is greater than the maximum radial dimension of the assembling space 13; wherein, the socket space 11 can be used for socketing in combination with a power tool. Of course, the main body 1 is not limited to the above-mentioned aspect. It can also be shown in the third embodiment of FIG. 11. Please compare FIG. 1 and FIG. 11. The difference between the third embodiment and the first embodiment is: The body 1A of the embodiment further includes a protruding plug-in component 7 which replaces the socket space 11 in FIG. 1 to be used for plug-in combination with a power tool.

The swing member 2 includes a head body 21, a connecting rod 22, and an insertion hole 23. The connecting rod 22 is connected to the head body 21. The head body 21 is a polygonal spherical head. The head body 21 can be selectively moved. The connecting rod 22 is accommodated in the assembling space 13 so that the connecting rod 22 can selectively swing relative to the main body 1, and the insertion hole 23 penetrates the head body 21 and the connecting rod 22.

The insertion hole 23 includes a first end 231 and a second end 232 opposite to each other. The second end 232 communicates with the connecting channel 12, and the first end 231 is for a driving rod 6 to move at a first position and A second position is inserted; wherein, along the first direction 5, the edge of the insertion hole 23 has a non-circular contour, so the driving rod 6 and the swing member 2 are in a co-moving relationship. Furthermore, it is defined as the first position when the driving rod 6 does not protrude from the second end 232. At this time, the swing member 2 can move relative to the body 1, and it is defined that the driving rod 6 protrudes from the second end. 232 and when it extends into the connecting passage 12, it is the second position. At this time, the connecting passage 12 is perpendicular to the first direction 5 to limit and stop the driving rod 6, in other words, the driving rod 6 is connected in series with the swing member 2 and the main body 1, so that the swing member 2 cannot move relative to the main body 1 to achieve positioning.

Furthermore, in the first direction 5, the sum of the length of the insertion hole 23, the length of the assembling space 13 and the length of the connecting channel 12 is less than the length of the driving rod 6 to ensure The driving rod 6 has a sufficient length to reach the second position. In addition, in the first direction 5, the length of the insertion hole 23 is greater than the sum of the length of the assembling space 13 and the length of the connecting channel 12 to ensure a gap between the swing member 2 and the drive rod 6 There is more contact area for stable simultaneous movement. In addition, in the first direction 5, the ratio of the length of the connecting space 13 to the length of the connecting passage 12 is between 1.3 and 1.6, and the connecting space 13 and the connecting passage 12 have a relatively appropriate length It is configured so that the assembling space 13 has a volume to accommodate the head body 21 properly, and the length of the connecting channel 12 to limit the driving rod 6 is taken into consideration.

The locking structure 3 includes at least one positioning hole 31, at least one positioning bead 32, a first elastic member 33, and a sleeve 34 of the same number. The at least one positioning hole 31 penetrates the connecting rod 22 and communicates laterally with the The insertion hole 23, the at least one positioning bead 32 is movably limited to the at least one positioning hole 31, the sleeve 34 is sleeved on the connecting rod 22 and can move in a locked position and a release position, when the sleeve 34 moves In the locked position, a first rib 341 of the sleeve 34 urges the at least one positioning bead 32 to protrude into the insertion hole 23 for positioning the driving rod 6. When the sleeve 34 moves to the release position A chamber 343 of the sleeve 34 corresponds to a portion of the at least one positioning bead 32 so that the at least one positioning bead 32 does not protrude into the insertion hole 23 for releasing the driving rod 6, the first elastic member 33 Connected between the kit 34 and the connecting rod 22 to drive the kit 34 to move toward the locked position normally, and ensure that the driving rod 6 will not be detached arbitrarily during use, so as to greatly improve the safety and reliability during use Spend.

In the first embodiment, the number of the at least one positioning hole 31 and the number of the at least one positioning bead 32 are two respectively, and the two positioning holes 31 are symmetrically arranged to provide the driving rod 6 with a uniform positioning force. In addition, the driving rod 6 includes an outer wall 62 and a locking portion 61. The locking portion 61 is recessed on the outer wall 62. When the sleeve 34 is in the locking position, the two positioning beads 32 are embedded in the locking portion 61 to Stop interfering with the drive rod 6, and when the set 34 is in the release position, the two positioning beads 32 are clamped between the outer wall 62 and the set 34 perpendicular to the first direction 5, so that the drive rod 6 During the movement, it will still be clamped by the two positioning beads 32, so as to effectively avoid the situation of rapid sliding and disengagement. Because of this, when the driving rod 6 is in the second position, the sleeve 34 remains in the release position. The time line can be used safely.

More specifically, the tool kit further includes a limit ring 41, the limit ring 41 is positioned in a ring groove 14 of the body 1, the ring groove 14 is located in the assembling space 13, the limit ring 41 It is used to stop the head from escaping from the assembling space 13 in the first direction 5. More specifically, the plurality of first protrusions 15 are circumferentially distributed in the assembly space 13 at equal angular intervals, and the plurality of second protrusions 16 respectively extend along the first direction 5 and are connected to the plurality of first protrusions 15 respectively. Are arranged in a straight line, the plurality of first protrusions 15 and the plurality of second protrusions 16 are arranged at intervals in the first direction 5 to define the ring groove 14 together, and the plurality of second protrusions 16 are used for Abut against the head body 21 perpendicular to the first direction 5; wherein each of the second protrusions 16 includes an inclined guide surface 161 for guiding the head body 21 to slide into the assembling space 13.

In the first embodiment, the number of the plurality of first protrusions 15 and the number of the plurality of second protrusions 16 are six respectively. When viewed along the first direction 5, the outer contour of the head body 21 is a regular hexagon When the connecting rod 22 and the body 1 are coaxially located, the six second protrusions 16 are pressed against the center of the six sides 211 of the head body 21, and the hexagonal portion 212 of the head body 21 does not touch the Assemble the inner wall of the space 13.

Preferably, the tool kit further includes a second elastic member 42 which elastically abuts between the bottom wall of the assembling space 13 and the head body 21 to normally force the head body 21 to abut against By the stop ring 41, during the rotation of the head body 21, the stop ring 41 can provide additional supporting force to the head body 21, so that the head body 21 can move stably.

It is worth mentioning that the locking structure 3 further includes a first retaining ring 35 and a second retaining ring 36. The radial dimension of the second retaining ring 36 is larger than the radial dimension of the first retaining ring 35. A retaining ring 35 is embedded in the connecting rod 22, the second retaining ring 36 is sleeved on the connecting rod 22, and the second retaining ring 36 partially overlaps the first retaining ring 35 in the first direction 5 and mutually By interference, the cooperation of the first retaining ring 35 and the second retaining ring 36 can effectively simplify the processing and assembly procedures, and can reduce weight and reduce component assembly errors. The first retaining ring 35, the second retaining ring 36, and the first elastic member 33 are located inside the sleeve 34, the second retaining ring 36 slides against the inner wall of the sleeve 34 laterally, and the first One end of the elastic member 33 springs against the second retaining ring 36, and the other end of the first elastic member 33 springs against the sleeve 34.

The oscillating member 2 further includes a flange 24 projecting radially from the connecting rod 22. In the moving direction of the sleeve 34, the flange 24 interferes with and blocks the sleeve 34 to restrict the sleeve 34 The extreme position of the movement prevents the sleeve 34 from being unintendedly actuated and excessively moved to cause structural damage. In the first embodiment, the flange 24 is located in the direction in which the sleeve 34 moves from the release position to the locked position, that is, when the sleeve 34 moves to the release position, it faces away from the flange 24 Move (such as pushing forward); and, when the sleeve 34 is in the locked position, the sleeve 34 is tied to the flange 24 in the first direction 5 so that the flange 24 can effectively support the sleeve 34.

Of course, it is not limited to the above aspect. Please further refer to the second embodiment of FIG. 9 and FIG. 34A further includes a second protruding rib 342, the second protruding rib 342 is spaced apart from the first protruding rib 341 in the first direction 5 to jointly define a chamber 343A; wherein, the first elastic member 33A resiliently resists Between the first rib 341 and the connecting rod 22A, the first elastic member 33A is used to drive the second rib 342 to move toward the third retaining ring 37 normally, in the first direction 5, The third blocking ring 37 and the second rib 342 are in an interference blocking relationship, and the third blocking ring 37 is used to prevent the sleeve 34A from being separated from the connecting rod 22A. In addition, the flange 24A is located in the direction in which the sleeve 34A moves from the locked position to the release position, that is, when the sleeve 34A moves to the release position, it moves in a direction close to the flange 24A (such as pulling back) .

1,1A: body

11: Socket space

12: Connecting channel

13: Assembling space

14: Ring groove

15: The first convex wall

16: The second convex wall

161: Inclined guide surface

2: swing parts

21: head body

211: side

212: corner

22, 22A: connecting rod

23: Socket hole

231: first end

232: second end

24, 24A: flange

3,3A: Locking structure

31: positioning hole

32: positioning beads

33, 33A: the first elastic part

34, 34A: Kit

341: first rib

342: second rib

343,343A: Room

35: first retaining ring

36: second retaining ring

37: third retaining ring

41: limit ring

42: second elastic part

5: First direction

6: Drive rod

61: Locking part

62: Outer Wall

7: Plug-in components

Fig. 1 is a perspective view of the first embodiment of the present invention. Figure 2 is an exploded view of Figure 1. FIG. 3 is a schematic diagram of the oscillating member being accommodated in the main body along a first direction according to the first embodiment of the present invention. Fig. 4 is a perspective view of the stop ring set in the ring groove of the first embodiment of the present invention. Fig. 5 is a perspective view of the stop ring of Fig. 4 removed. 6 is a cross-sectional view of the first embodiment of the present invention with the drive rod in the first position and the sleeve in the locked position. Fig. 7 is a cross-sectional view of the first embodiment of the present invention in the release position of the kit. Fig. 8 is a cross-sectional view of the driving rod in the second position of the first embodiment of the present invention. Fig. 9 is a cross-sectional view of the second embodiment of the present invention. Figure 10 is a cross-sectional view of the second embodiment of the kit in the released position. Fig. 11 is a side view of the third embodiment of the present invention.

1: body

21: head body

22: connecting rod

23: Socket hole

24: flange

31: positioning hole

32: positioning beads

33: The first elastic part

34: Kit

35: first retaining ring

36: second retaining ring

41: limit ring

42: second elastic part

6: Drive rod

Claims (7)

A tool kit includes: a body including a connecting channel and a connecting space that communicate with each other along a first direction; a swinging piece including a head body, a connecting rod and an insertion hole, the connecting rod is connected to The head body, the head body is a polygonal spherical head, the head body can be selectively movably accommodated in the assembling space so that the connecting rod can selectively swing relative to the body, and the insertion hole penetrates the head body and the A connecting rod, the insertion hole includes a first end and a second end, the second end communicates with the connecting channel, and the first end is provided for a driving rod to move between a first position and a second position When the driving rod does not protrude from the second end, it is defined as the first position, and when the driving rod protrudes from the second end and extends into the connecting channel, it is defined as the second position. Vertically to the first direction, the drive rod is provided to limit and stop the driving rod. Viewed along the first direction, the edge of the insertion hole has a non-circular contour; and a locking structure includes at least one positioning hole of the same number , At least one positioning bead, a first elastic member and a sleeve, the at least one positioning hole penetrates the connecting rod and is laterally connected to the insertion hole, the at least one positioning bead is movably confined to the at least one positioning hole , The kit is sleeved on the connecting rod and can be moved in a locked position and a release position. When the kit moves in the locked position, a first rib of the kit opposes the at least one positioning bead to protrude into the An insertion hole is used for positioning the drive rod. When the assembly is moved to the release position, a chamber of the assembly corresponds to a portion of the at least one positioning bead so that the at least one positioning bead does not protrude into the insertion hole For releasing the driving rod, the first elastic member is connected between the sleeve and the connecting rod to drive the sleeve to move toward the locking position normally; wherein, the locking structure further includes a first retaining ring and a The second retaining ring, the radial dimension of the second retaining ring is greater than the radial dimension of the first retaining ring, the first retaining ring is embedded in the connecting rod, the second retaining ring is sleeved on the connecting rod, the The second baffle ring partially overlaps with the first baffle ring in the first direction to interfere with each other Wherein, the first retaining ring, the second retaining ring and the first elastic member are located inside the sleeve, the second retaining ring slides laterally against the inner wall of the sleeve, and one end of the first elastic member Elastically against the second retaining ring, and the other end of the first elastic member elastically against the sleeve. The tool kit according to claim 1, further comprising a limit ring, the limit ring is positioned in a ring groove of the body, the ring groove is located in the assembling space, and the limit ring is used for the first In one direction, the head is prevented from escaping from the assembling space. The tool kit according to claim 2, further comprising a second elastic member, the second elastic member elastically abuts between the bottom wall of the assembling space and the head body to normally force the head body against the Limit ring. The tool kit according to claim 2, wherein the plurality of first protrusions are circumferentially distributed in the assembly space at equal angular intervals, and the plurality of second protrusions respectively extend along the first direction and are respectively connected to the plurality of first protrusions. The protrusions are arranged in a straight line, the plurality of first protrusions and the plurality of second protrusions are arranged at intervals in the first direction to jointly define the ring groove, and the plurality of second protrusions are used to perpendicularly to the first direction. Abut the head body in one direction; wherein, each of the second protrusions includes an inclined guide surface, and the inclined guide surface is used for guiding the head body to slide into the assembling space. The tool kit according to any one of claims 1 to 4, wherein the swinging member further includes a flange protruding radially from the connecting rod, and in the moving direction of the kit, the flange Interference stops the kit. The tool kit according to claim 5, wherein the flange is located in a direction in which the kit moves from the release position to the locked position. The tool kit according to claim 4, further comprising a second elastic member, the second elastic member elastically abuts between the bottom wall of the assembling space and the head body to normally force the head body against the Limit The oscillating member further includes a flange, the flange protruding radially from the connecting rod, in the moving direction of the kit, the flange interferes and stops the kit; the flange is located in the kit by the The release position moves toward the locked position; when the set is in the locked position, the set abuts against the flange in the first direction; the number of the at least one positioning hole and the number of the at least one positioning bead are respectively The positioning holes are arranged symmetrically; the number of the plurality of first protrusions and the number of the plurality of second protrusions are six respectively. When viewed along the first direction, the outer contour of the head body is a regular hexagon , When the connecting rod and the main body are coaxially located, the six second protrusions are respectively pressed against the center of the six sides of the head body, and the hexagonal part of the head body does not touch the inner wall of the assembling space; The body further includes a connecting space, and the connecting passage is connected between the connecting space and the connecting space. In the first direction perpendicular to the first direction, the largest radial dimension of the connecting space is greater than the largest of the connecting passage Radial dimension, the maximum radial dimension of the socket space is greater than the maximum radial dimension of the assembling space; in the first direction, the ratio of the length of the assembling space to the length of the connecting passage is between 1.3 To 1.6; in the first direction, the length of the insertion hole is greater than the sum of the length of the assembly space and the length of the connecting channel; in the first direction, the length of the insertion hole, The sum of the length of the assembling space and the length of the connecting channel is less than the length of the driving rod; when the driving rod is in the second position, the kit remains in the release position; the driving rod includes an outer wall and A locking portion, the locking portion is recessed on the outer wall, when the set is in the locking position, the two positioning beads are embedded in the locking portion, and when the set is in the release position, the two positioning beads are perpendicular to the second It is clamped between the outer wall and the sleeve in one direction.

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