TWI774385B - Quick release tool connecting rod - Google Patents

Abstract

A quick release tool connecting rod is provided, including: a rod body, including an inner space extending in an axial direction and a through hole communicated with the inner space; a quick release mechanism, including a push rod received in the inner space, a locking member disposed within the through hole and a first sleeve member sleeved to the rod body, the first sleeve member being movable relative to the rod body in the axial direction to drive the push rod to move between a locking position and a release position; and a second sleeve member, co-movably sleeved to the first sleeve member, the first sleeve member partially embedded within an inner circumferential wall of the second sleeve member; wherein the first sleeve member has a first hardness, and the second sleeve member has a second hardness which is smaller than the first hardness.

Description

Quick release tool post

The present invention relates to tool adapters, and in particular to a quick-release tool adapter.

General rotating tools include pneumatic, electric and hand tools, which can be used with tool bits such as sockets and screwdriver bits to drive the rotation of the fasteners for disassembly and assembly operations. When the locking position is located at a narrow place, the rotating tool can be assembled with an extension rod so as to extend into the locking position for operation, and the operation is convenient. Some of the existing extension rods are provided with a quick-release mechanism, so that the extension rod can be quickly disassembled and assembled with the rotating tool stably.

The quick-release mechanism of the conventional extension rod is switched between the lock state and the release state by operating a sleeve body set on the outer periphery of the extension rod body, so the sleeve body is relatively protruded from the extension rod body and is easily subjected to external force. The collision will cause the wear of the sleeve body and the action of the quick release mechanism to be stuck. In addition, if an identification structure or a reinforcing structure is to be arranged on the sleeve body or the connecting rod body, there are also problems such as complicated processing method and high cost.

Therefore, it is necessary to provide a novel and progressive quick-release tool adapter to solve the above problems.

The main purpose of the present invention is to provide a quick-release tool post, which can be assembled stably and has good structural strength.

In order to achieve the above object, the present invention provides a quick-release tool adaptor, including: a rod body, including an inner space extending along an axial direction and a through hole communicating with the inner space; a quick-release mechanism, including a A push rod accommodated in the inner space, a locking piece accommodated in the through hole, and a first set set on the rod body, the first set can move relative to the rod body along the axial direction and drive the rod body The push rod moves to a locking position and a release position; and a second set, which can be synchronously moved and sleeved outside the first set, and the first set is partially embedded in the inner peripheral wall of the second set; wherein, the The first set has a first hardness, and the second set has a second hardness smaller than the first hardness; when the push rod is at the locking position, the push rod radially forces the locking piece to protrude from the rod body ; When the push rod is in the release position, the push rod does not push against the locking piece, and the locking piece can move radially without protruding from the rod body.

1: Quick release tool adaptor

10: Rod body

11: Internal space

12: Through hole

13: The first group of terminals

131: Polygonal Column

14: The second group of terminals

141: Polygonal hole

15: Chute

20: Quick release mechanism

21: Putter

22: Locks

23: First Kit

231: Perforation

232: convex part

233: Recess

234: Arc

235:Extended Face

24: Slider

25: Elastic

30: Second kit

31: Conductor

32: Embossed part

G: Gap

FIG. 1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is an exploded view of a preferred embodiment of the present invention.

3 is a cross-sectional view of a preferred embodiment of the present invention.

FIG. 4 is a partial enlarged view of FIG. 3 .

FIG. 5 is a schematic diagram of the operation of a preferred embodiment of the present invention.

FIG. 6 is an assembly schematic diagram of a first kit and a second kit according to a preferred embodiment of the present invention.

FIG. 7 is a cross-sectional view of the first set and the second set after assembly according to a preferred embodiment of the present invention.

FIG. 8 is a partial enlarged view of FIG. 7 .

The following examples only illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention, and are described together first.

Please refer to FIGS. 1 to 8 , which show a preferred embodiment of the present invention. The quick-release tool adaptor 1 of the present invention includes a rod body 10 , a quick-release mechanism 20 and a second set 30 .

The rod body 10 includes an inner space 11 extending along an axial direction and a through hole 12 communicating with the inner space 11 ; the quick release mechanism 20 includes a push rod 21 accommodated in the inner space 11 , a accommodating The locking piece 22 in the through hole 12 and the first set 23 set on the rod body 10, the first set 23 can move relative to the rod body 10 along the axial direction and drive the push rod 21 to move in a lock position and a release position; the second set 30 is sleeved outside the first set 23 in a synchronously movable manner, and the first set 23 is partially embedded in the inner peripheral wall of the second set 30, whereby the second set 30 can The first set 23 is prevented from being collided by external forces, and the assembly stability and structural strength are good; wherein, the first set 23 has a first hardness, and the second set 30 has a second hardness smaller than the first hardness, by The inner peripheral wall of the second sleeve 30 can be squeezed to deform correspondingly to the outer peripheral wall of the first sleeve 23 . When the push rod 21 is at the locking position, the push rod 21 radially pushes against the locking member 22 to protrude from the rod body 10 (as shown in FIG. 3 ); when the push rod 21 is at the release position, the push rod 21 Without resisting the locking piece 22 , the locking piece 22 can move radially without protruding from the rod body 10 (as shown in FIG. 5 ), so as to achieve the effect of quick disassembly and stable assembly.

The rod body 10 further includes a first set of connecting ends 13 and a second set of connecting ends 14 disposed opposite to each other. The connecting end 13 includes a polygonal column 131 for socketing a rotating member (such as but not limited to a sleeve, a tool connecting rod, a screw, etc.), and the second set of connecting ends 14 includes a polygonal hole 141 for receiving A rotating tool (such as but not limited to a socket wrench, an adapter, etc.) is socketed to be driven by force. In detail, the rod body 10 radially penetrates a chute that communicates with the inner space 11 15. The quick release mechanism 20 further includes a sliding rod 24 that can move along the axial direction in the chute 15. The first set 23 is provided with a through hole 231 corresponding to the chute 15, and the sliding rod 24 cannot be relative to the shaft. The second sleeve 30 can radially block the sliding rod 24 by connecting the push rod 21 to the through hole 231 movably. Referring to FIG. 5 , when the second assembly 30 is operated to move along the axial direction, the first assembly 23 can drive the sliding rod 24 to move axially along the sliding slot 15 , thereby driving the push rod 21 to move to the release position, The structure is simple and easy to operate. Preferably, the quick release mechanism 20 further includes an elastic piece 25 accommodated in the inner space 11 , the elastic piece 25 axially springs against the push rod 21 and the rod body 10 to make the push rod 21 It has a tendency to move toward the locking position, whereby the push rod 21 can automatically return to the locking position, and can be stably clamped without falling off arbitrarily.

The difference between an outer diameter of the first sleeve 23 and an inner diameter of the second sleeve 30 is between 0.01 mm and 1.00 mm, whereby the first sleeve 23 and the second sleeve 30 can be effectively radially mutually Inlaid and not easy to slip off. Preferably, the outer peripheral wall of the first sleeve 23 is provided with a plurality of protrusions 232 spaced apart from each other, which can retain an appropriate deformation space and has a good anti-slip effect; the first sleeve 23 and the second sleeve 30 cannot rotate relative to each other, and the force The transmission effect is good and the push rod 21 can be directly driven. The density of the first sleeve 23 is preferably greater than the density of the second sleeve 30 , and the structural strength is good and not easily worn by force; in the axial direction, a length of the second sleeve 30 is not less than a length of the first sleeve 23 , which can be fully covered on the outer circumference of the first sleeve 23 and radially block the sliding rod 24 , which is convenient for assembly without alignment and has a good reinforcement effect. In this embodiment, the first set 23 is firstly pierced through the through hole 231 and then the plurality of protrusions 232 are formed, so that the position can be precisely aligned without being easily displaced during drilling, and the plurality of protrusions 232 can be prevented from being damaged. structure; the plurality of protrusions 232 can be formed on the outer surface of the first set 23 by rolling, for example, the surface can be densified, the strength is good, and there is no chips during processing; the outer diameter of the first set 23 The difference between the size and the inner diameter of the second sleeve 30 is preferably between 0.05 mm and 0.15 mm, which is convenient for assembly and can be clamped stably; the first sleeve 23 is made of steel and has good structural strength; the second Kit 30 is made of aluminum alloy, which is lightweight and easy to machine to form a non-slip surface or identify Structure, etc.; the outer peripheral wall of the second sleeve 30 is provided with at least one embossed portion 32, which has anti-slip effect and good aesthetics. Of course, the length of the second set can also be smaller than the length of the first set; the first set and the second set can also be made of other materials; the plurality of convex parts can also be formed on the first set by cutting or other methods. A set of peripheral walls.

In detail, each of the convex portions 232 extends continuously between the two end surfaces of the first set 23; with reference to FIG. 7 and FIG. 8 , a concave portion 233 is defined between adjacent two of the plurality of convex portions 232, and each of the concave portions There is a gap G between 233 and an inner peripheral wall of the second set 30 to ensure sufficient deformation space without changing the external appearance of the second set 30; the radial width of each gap G is preferably less than Each of the concave portions 233 is 2/3 of the maximum radial depth relative to one of the convex portions 232, so as to effectively prevent the second member 30 from rotating relative to the first member 23; each of the convex portions 232 includes an arc surface 234 and two extensions The surface 235, the two extending surfaces 235 are connected to the opposite sides of the arc surface 234 and are away from each other in the direction away from the arc surface 234, and can be stably embedded in the inner peripheral wall of the second set 30, and when assembled, each The protruding portion 232 is not easily deformed or broken by being squeezed. In other embodiments, the first set and the second set can also be completely pressed against each other without a gap; each of the convex parts can also be a convex rib with a flat cut surface or a tapered convex surface.

Wherein, at least one of the two opposite end faces of the second sleeve 30 in the axial direction is not in contact with the first sleeve 23; preferably, an inner peripheral wall of the second sleeve 30 includes a A guide portion 31 of a port of the sleeve 30 (as shown in FIG. 4 ), a radial dimension of the guide portion 31 is larger than an outer diameter of the first sleeve 23 for easy assembly. In this embodiment, the guide portion 31 is a ring inclined surface that gradually expands toward the port. During assembly, the guide portion 31 can be pressed against an end edge of the first set 23 first, and then the guide portion 31 can be assembled from the first assembly 23. One side of the second sleeve 30 different from the guide portion 31 exerts force to sleeve the second sleeve 30 on the outer periphery of the first sleeve 23 , the structure is simple, the manufacture and assembly are convenient, and the processing cost is low. Of course, the guiding portion can also be a curved surface or a ring step, which is also helpful for the alignment of the end edge of the first set to achieve the guiding effect.

1: Quick release tool adaptor

10: Rod body

20: Quick release mechanism

30: Second kit

32: Embossed part

Claims (10)

A quick-release tool connecting rod, comprising: a rod body, including an inner space extending along an axial direction and a through hole communicating with the inner space; a quick-release mechanism, including a pusher accommodated in the inner space A rod, a locking piece accommodated in the through hole and a first set set on the rod body, the first set can move relative to the rod body along the axial direction and drive the push rod to move to a locked position and a release position; and a second set, sleeved outside the first set synchronously and movably, the first set part is radially embedded in the inner peripheral wall of the second set; wherein, the first set has a first hardness , the second set has a second hardness less than the first hardness; when the push rod is in the locking position, the push rod radially forces the locking piece to protrude from the rod body; when the push rod is in the release When the push rod is not against the locking piece, the locking piece can move radially without protruding from the rod body; wherein, at least one of the two opposite end faces of the second sleeve in the axial direction and the first Kits do not abut. The quick-release tool adaptor as claimed in claim 1, wherein the outer peripheral wall of the first sleeve is provided with a plurality of protruding portions spaced apart from each other. The quick-release tool adapter as claimed in claim 2, wherein a concave portion is defined between adjacent two of the plurality of convex portions, and a gap is formed between each of the concave portions and an inner peripheral wall of the second sleeve. The quick-release tool adapter as claimed in claim 2, wherein each of the protruding portions includes an arc surface and two extending surfaces, and the two extending surfaces are connected to two opposite sides of the arc surface and are mutually in a direction away from the arc surface. keep away. The quick-release tool adapter of claim 1, wherein the inner peripheral wall of the second sleeve includes a guide portion adjacent to a port of the second sleeve, and a radial dimension of the guide portion is larger than the diameter of the guide portion. Outer diameter dimension of one of the first kits. The quick-release tool adaptor as claimed in claim 1, wherein the rod body radially penetrates a chute communicating with the inner space, and the quick-release mechanism further comprises a slide that can move along the axial direction in the chute A rod, the first set is provided with a through hole corresponding to the sliding slot, the sliding rod is connected to the push rod in a non-relatively axially displaced manner and inserted into the through hole, and the second set can radially block the sliding rod. The quick-release tool adaptor according to claim 1, wherein in the axial direction, a length of the second sleeve is not less than a length of the first sleeve. The quick-release tool adapter of claim 1, wherein the density of the first set is greater than the density of the second set. The quick-release tool adaptor according to any one of claims 1 to 8, wherein a difference between an outer diameter of the first set and an inner diameter of the second set is between 0.01 mm and 1.00 mm. The quick-release tool adaptor as claimed in claim 3, wherein each of the protruding portions includes an arc surface and two extending surfaces, and the two extending surfaces are connected to opposite sides of the arc surface and face each other in a direction away from the arc surface. away from each other; each of the convex parts extends continuously between the two end faces of the first set; the radial width of each of the gaps is less than 2/3 of the maximum radial depth of a concave part relative to a convex part; the second set The inner peripheral wall includes a guide portion adjacent to a port of the second set, and a radial dimension of the guide portion is larger than an outer diameter of the first set; the guide portion is gradually formed toward the port. Expanding and extending ring slope; the rod body radially penetrates a chute that communicates with the inner space, the quick release mechanism further includes a slide rod that can move along the axial direction in the chute, and the first set is provided with a corresponding In the through hole of the sliding slot, the sliding rod is connected to the push rod and inserted into the through hole in a non-rotatable manner, and the second set can radially block the sliding rod; the quick release mechanism further includes an accommodating device An elastic piece in the inner space, the elastic piece is axially resilient between the push rod and the rod body so that the push rod has a tendency to move toward the locking position; in the axial direction, one of the second sets The length is not less than a length of the first set; the density of the first set is greater than the density of the second set; the difference between an outer diameter of the first set and an inner diameter of the second set is 0.05 mm to 0.15 mm; the first set and the second set cannot rotate relative to each other; the outer peripheral wall of the second set is provided with at least one embossed portion; the first set is made of steel; and the second set is made of Made of aluminum alloy.

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