TWI796116B - Locking device for tool - Google Patents

Abstract

A locking device for tool includes a first member and a second member. The first member has a through hole, and an inner wall of the through hole is provided with a first limiting portion. The second member is selectively rotatably connected to the through hole and provided with a second limiting portion detachably engaged with the first limiting portion. The second member can move relative to the through hole to switch between an unlock position where the second limiting portion is detached from the first limiting portion, and a lock position wherein the second limiting portion is engaged with the first limiting portion so that the second member and the through hole can alternately rotate relative to each other.

Description

Tool Locking Device

The present invention relates to a locking device, in particular to a tool locking device, enabling the tool to selectively adjust or lock the relative angle between two parts.

Generally, a tool whose angle can be adjusted to suit the working environment or other requirements usually has two parts that can pivot relative to each other, such as the head and the handle of an oscillating wrench. However, in order to enable the two parts to pivot relative to each other to adjust the angle, this type of tool generally only adopts a pin passing through the two parts so that the two parts can be pivotally connected, but there is no gap between the above two parts. An appropriate locking device provides the locking angle function between the two parts, so that the adjusted angle between the two parts will change due to the influence of force during the working process, which is not conducive to continuous operation.

The invention provides a tool locking device which can selectively adjust or lock the relative angle between the first part and the second part.

The tool locking device provided by the present invention includes a first component and a second component. The first component has a perforation, and the inner wall of the perforation is provided with a first clamping portion. The second component is selectively rotatably connected to the through hole and is provided with a second clamping portion detachably clamped to the first clamping portion, and the second component is It is configured to be able to move relative to the perforation to switch between an unlocked position where the second clamping part is separated from the first clamping part and a locking position where the second clamping part is clamped to the first clamping part, so that the second part and the The perforations can be selectively rotated relative to each other.

In an embodiment of the present invention, the first clamping portion and the second clamping portion respectively have a plurality of teeth that can engage with each other.

In one embodiment of the invention, the first member defines a first end and a second end opposite to the first end. Perforations are formed along a longitudinal axis at the second end of the first member and pass through opposite sides of the second end. The second part is configured to be movable relative to the perforation along the longitudinal axis to switch between an unlocked position and a locked position, the second part has a first part and a second part connected to the first part, the second part is selectively rotatable Connected to the through hole, the second locking part is formed on the outer peripheral surface of the second part.

In an embodiment of the present invention, at least one positioning groove adjacent to the first clamping portion is further provided on the inner wall of the through hole. The second part forms a through hole along the radial direction of the longitudinal axis and includes a positioning group disposed in the through hole, and the positioning group selectively abuts against at least one positioning groove as the second component moves relative to the through hole.

In an embodiment of the invention, the through hole runs through opposite sides of the second portion. At least one positioning groove includes two spaced apart positioning grooves. The positioning group includes two positioning elements selectively abutting against the two positioning grooves and a biasing element biasing the two positioning elements toward the two positioning grooves. When the second component is at the unlocked position, the two positioning members abut against one of the two positioning grooves. When the second component is at the locked position, the two positioning members abut against the other positioning groove.

In another embodiment of the present invention, the perforation has a small-diameter section, a large-diameter section connected to the small-diameter section, and an indented portion formed on the side of the large-diameter section opposite to the small-diameter section, and the first clamping portion is formed on trail segment. The second part has a large-diameter portion, a small-diameter portion connecting the large-diameter portion, and a In the shoulder portion, the second clamping portion is formed on the large diameter portion. The tool locking device further includes an elastic member. Opposite ends of the elastic member elastically abut against the retracted portion and the shoulder respectively, biasing the second component toward the locking position.

In yet another embodiment of the present invention, the tool locking device further includes a third component. The third component forms a pivot hole corresponding to the through hole along the longitudinal axis, and the inner wall of the pivot hole is provided with two spaced apart positioning grooves. The first part of the second component can selectively rotate through the pivot hole and the through hole, and the first part forms a through hole along the radial direction of the longitudinal axis. The second part further includes a positioning group disposed in the through hole, and the positioning group selectively abuts against one of the two positioning grooves as the second part moves relative to the through hole and the pivot hole.

In yet another embodiment of the present invention, the positioning group includes a positioning element selectively abutting against the two positioning grooves and a biasing element biasing the positioning element. When the second component is at the unlocked position, the positioning member abuts against one of the two positioning grooves. When the second component is at the locking position, the positioning member abuts against the other positioning groove.

Another tool locking device provided by the present invention includes a first component and a second component. The first component has a perforation, and at least one positioning groove is provided on the inner wall of the perforation. The second member is selectively rotatably connected to the aperture and configured to move relative to the aperture. The second component forms a through hole and includes a positioning group disposed in the through hole, and the positioning group selectively abuts against at least one positioning groove as the second component moves relative to the through hole.

In an embodiment of the invention, the through hole runs through opposite sides of the second portion. At least one positioning groove includes two positioning grooves. The positioning group includes two positioning elements selectively abutting against the two positioning grooves and a biasing element biasing the two positioning elements toward the two positioning grooves.

Based on the above, the tool locking device provided by the embodiment of the present invention is selectively rotatably connected to the through hole of the first part through the second part, and the second part can move relative to the through hole and disengage from the first part at a second clamping part. The unlocked position of the clamping part and the locking of a second clamping part clamped by the first clamping part Change between positions, and then control whether the second component and the perforation can rotate relative to each other. Therefore, the angle between the first component and the second component can be adjusted or locked according to requirements.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail together with the accompanying drawings.

1: Tool locking device

10: First part

11: first end

12: Second end

13: Perforation

L13: Vertical axis

131: The first card system department

132: positioning groove

20: Second part

21: The first part

211: connection part

22:Second part

221: The second card system department

222: through hole

223: ring groove

23: Positioning group

231: Positioning piece

232: Bias

24: Fasteners

2: Wrench

1a: Tool locking device

13a: Perforation

131a: The first card system department

132a: small diameter section

133a: large diameter section

134a: retracted part

20a: Second component

21a: First part

22a:Second part

221a: The second card system

222a: Large diameter part

223a: Small diameter department

224a: Shoulder

23a: Elastic piece

1b: Tool locking device

10b: first part

13b: Perforation

131b: ring groove

14b: cover

15b: Fasteners

20b: Second component

21b: First part

211b: through hole

22b:Second part

23b: Positioning group

231b: positioning piece

232b: Bias

24b: the first pressing part

25b: the second pressing part

30b: The third component

31b: pivot hole

311b: positioning groove

Fig. 1 is a schematic perspective view of the first embodiment of the tool locking device of the present invention.

FIG. 2 is a partially exploded schematic diagram of the tool locking device shown in FIG. 1 .

FIG. 3 is a schematic cross-sectional view of the tool locking device shown in FIG. 1 , showing that the second component is in an unlocked position.

FIG. 4 is another schematic cross-sectional view of the tool locking device shown in FIG. 1 , showing that the second component is in a locked position.

Fig. 5 is a schematic diagram of the use of the tool locking device shown in Fig. 1, showing that the tool locking device is connected to a wrench.

Fig. 6 is a partially exploded schematic view of the second embodiment of the tool locking device of the present invention.

Fig. 7 is a schematic cross-sectional view of the tool locking device shown in Fig. 6, showing that the second component is in a locked position.

Fig. 8 is another schematic cross-sectional view of the tool locking device shown in Fig. 6, showing that the second component is in an unlocked position.

Fig. 9 is a partially exploded schematic view of a third embodiment of the tool locking device of the present invention.

Fig. 10 is a schematic cross-sectional view of the tool locking device shown in Fig. 9, showing that the second component is in an unlocked position.

Fig. 11 is another schematic cross-sectional view of the tool locking device shown in Fig. 9, showing that the second component is in the locked position.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. For the referenced symbol numbers in the following description, when the same symbol symbols appear in different drawings, they will be regarded as the same or similar elements. These embodiments are only a part of the present invention, and do not reveal all possible implementation modes of the present invention. Rather, these embodiments are only examples of tool locking devices within the scope of the patent application of the present invention.

Please refer to FIG. 1 to FIG. 4 in order, which are the appearance schematic diagram, exploded schematic diagram and cross-sectional schematic diagram of the first embodiment of the tool locking device of the present invention. The tool locking device 1 shown in this embodiment includes a first component 10 and a second component 20 . The first component 10 defines a first end 11 and a second end 12 opposite to the first end 11 . A through hole 13 is formed at the second end 12 of the first component 10 , and a first clamping portion 131 is disposed on an inner wall of the through hole 13 . The second component 20 has a first portion 21 and a second portion 22 opposite to the first portion 21 . The second portion 22 is selectively rotatably connected to the through hole 13 , and the outer peripheral surface of the second portion 22 is provided with a second locking portion 221 detachably locked to the first locking portion 131 . The second part 20 is configured to be movable relative to the through hole 13 to switch between an unlocked position ( FIG. 3 ) and a locked position ( FIG. 4 ).

When the second component 20 is at the unlocked position, the second clamping portion 221 is disengaged from the first clamping portion 131 , so that the through hole 13 and the second portion 22 can rotate relative to each other. When the second component 20 is at the locked position, the second engaging portion 221 is engaged with the first engaging portion 131 , so that the through hole 13 and the second portion 22 cannot rotate relative to each other. In this way, when the second part 20 is in the unlocked position, the user can apply force to the first part 10 to make the through hole 13 and the second part 22 rotate to a desired angle, and then apply force to the second part 20 to make the second part 20 The second part 22 of the second part 20 moves relative to the through hole 13 to change from the unlocked position to the locked position, so that the through hole 13 and the second part 22 cannot rotate relative to each other to lock the angle between the first part 10 and the second part 20 .

It can be understood that the first part 10 and the second part 20 of the tool locking device 1 of the present invention can be tools with various functions, such as wrenches, handles, etc., but are not limited thereto, and can also be used as adapters. Adapters for other tools. For example: the first end 11 of the first component 10 can be adapted to connect with a to-be-driven component (not shown in the figure), so that the first component 10 can be used as a driver to drive the to-be-driven component. As further shown in FIG. 5 , the first portion 21 can form a connecting portion 211 adapted to be detachably connected to a wrench 2 without ratcheting function, and the connecting portion 211 in this embodiment can be a square hole. Therefore, the first component 10 and the second component 20 of this embodiment can form a wrench adapter. In addition, the first end 11 can be additionally provided with a ratchet group to facilitate driving the to-be-driven part. The ratchet group can have a pawl and a ratchet, and the ratchet can only rotate in one direction through the meshing relationship between the pawl and the ratchet. The moving group can also be provided with a toggle button to change the engagement direction between the pawl and the ratchet, so that it has a reversing function. Therefore, the ratchet group provided on the first end 11 can use the currently known ratchet structure, and its structure and type (reversible or unidirectional) are not limited.

In order to enable the second clamping portion 221 to be detachably clamped to the first clamping portion 131 , the first clamping portion 131 and the second clamping portion 221 in this embodiment can respectively have a plurality of teeth that can engage with each other.

As shown in FIG. 4 , when the second part 20 is at the locked position, the first part 21 can abut against the second end 12 to remind the user that the second part 20 has been transformed from the unlocked position to the locked position.

Further, the perforation 13 of this embodiment is formed at the second end 12 of the first component 10 along a longitudinal axis L13 and runs through opposite sides of the second end 12, and the second component 20 is configured to be able to face each other along the longitudinal axis L13. The through hole 13 moves to switch between the unlocked position and the locked position.

In addition, at least one positioning groove 132 adjacent to the first clamping portion 131 is further provided on the inner wall of the through hole 13 . The second part 22 forms a through hole 222 along the radial direction of the longitudinal axis L13, and the second component 20 further includes a positioning group 23 disposed in the through hole 222, and the positioning group 23 is selectively moved as the second component 20 moves relative to the through hole 13. It abuts against at least one positioning groove 132 .

The through hole 222 in this embodiment runs through opposite sides of the second portion 22 . The at least one positioning groove 132 includes two positioning grooves 132 spaced apart from each other. The positioning group 23 can include two selectively abutting on two fixed The positioning part 231 of the positioning groove 132 and the biasing part 232 bias the two positioning parts 231 toward the two positioning grooves 132 . As shown in FIG. 3 , when the second component 20 is at the unlocked position, the two positioning members 231 abut against one of the two positioning grooves 132 . As shown in FIG. 4 , when the second component 20 is at the locking position, the two positioning members 231 abut against the other positioning groove 132 .

Furthermore, the two positioning members 231 in this embodiment can be bead-shaped, so that when the second component 20 is in the unlocked position, the through hole 13 and the second part 22 can reduce the frictional force and relatively rotate smoothly. The biasing member 232 in this embodiment can be a compression spring, and opposite ends of the biasing member 232 elastically abut against the two positioning members 231 respectively.

The second part 20 of this embodiment can form an annular groove 223 on the outer peripheral surface of the second part 22, and the second part 20 further includes a fastener 24 fastened to the annular groove 223, so as to prevent the second part 20 from detaching from the through hole 13 .

Please refer to FIG. 6 to FIG. 8 , which are exploded schematic diagrams and cross-sectional schematic diagrams of the second embodiment of the tool locking device of the present invention. The structure of the tool locking device 1a shown in this embodiment is substantially the same as that of the first embodiment, the difference is that the perforation 13a has a small-diameter section 132a, a large-diameter section 133a connected to the small-diameter section 132a, and a large-diameter section 133a. Opposite to the indented portion 134a on one side of the small-diameter section 132a, the first clamping portion 131a is formed on the small-diameter section 132a. The second portion 22a has a large diameter portion 222a, a small diameter portion 223a connecting the large diameter portion 222a, and a shoulder portion 224a formed between the large diameter portion 222a and the small diameter portion 223a, and the second locking portion 221a is formed on Large diameter part 222a. The tool locking device 1a further includes an elastic member 23a. Opposite ends of the elastic member 23a elastically abut against the retracted portion 134a and the shoulder portion 224a respectively, biasing the second component 20a toward the locking position.

As shown in Figure 7, when the second part 20b is in the locking position, the first clamping part 131a and the second clamping part 221a are clamped together so that the through hole 13a and the second part 22a cannot rotate relative to each other. The lower elastic member 23a is not compressed. As shown in Figure 8, the user must apply force to the first part 21a of the second part 20a, so that the second part 22a of the second part 20a moves relative to the through hole 13a and changes from the locked position to the unlocked position, so that the elastic part 23a is pressed Shoulder 224a compresses to deform. At this time, the user needs to continue to apply force to make the through hole 13a and the second part 22a rotate relative to each other. Once the user stops applying force to the first part 21a, the elastic member 23a will elastically recover and bias the second part 20a towards the locked position, so that The second member 20b is shifted from the unlocked position to the locked position.

Please refer to FIG. 9 to FIG. 11 , which are exploded schematic diagrams and cross-sectional schematic diagrams of a third embodiment of the tool locking device of the present invention. The structure of the tool locking device 1b shown in this embodiment is substantially the same as that of the first embodiment. The longitudinal axis L13 forms a pivot hole 31b corresponding to the through hole 13b, and the inner wall of the pivot hole 31b is provided with two spaced positioning grooves 311b. The first part 21b of the second part 20b can selectively rotate through the pivot hole 31b and the through hole 13b. The first part 21b forms a through hole 211b along the radial direction of the longitudinal axis L13. The second part 20b also includes a The positioning group 23b of the through hole 211b, and the positioning group 23b selectively abuts against one of the two positioning grooves 311b as the second component 20b moves relative to the through hole 13b and the pivot hole 31b.

Further, the positioning group 23b of this embodiment includes a positioning piece 231b selectively abutting against one of the two positioning grooves 311b and a biasing piece biasing the positioning piece 231b toward one of the two positioning grooves (311b) 232b. As shown in FIG. 10 , when the second component 20b is at the unlocked position, the positioning member 231b abuts against one of the two positioning grooves 311b. As shown in FIG. 11 , when the second component 20b is at the locking position, the two positioning members 231b abut against the other positioning groove 311b, thereby providing positioning function when the second component 20b switches positions.

In addition, the first component 10b forms an annular groove 131b on the inner wall of the through hole 13b, and a cover 14b is connected to the first component 10b through a fastener 15b buckled in the annular groove 131b. The second part 20b extends along the longitudinal axis L13 at the first part 21b and the second part 22b respectively to form a first pressing part 24b and a second pressing part 25b. The first pressing part 24b and the second pressing part 25b are for users to press The second component 20b is switched between the unlocked position and the locked position, and the first pressing portion 24b and the second pressing portion 25b selectively protrude from the pivot hole 31b and the through hole 13b as the second component 20b moves relative to the through hole 13b.

In this embodiment, the first part 10b can be a swing head wrench, and the third part 30b can be a handle and is pivotally connected with the second part 20b. Therefore, the third component 30b can selectively pivot with the first component 10b through the second component 20b to adjust or lock the angle.

Based on the above, the above embodiments of the present invention are selectively rotatably connected to the through holes 13, 13a, 13b of the first component 10, 10b through the second component 20, 20a, 20b, and the second component 20, 20a, 20b can Relative to the through holes 13, 13a, 13b to move between the unlocked position and the locked position, and control whether the through holes 13, 13a, 13b and the second part 20, 20a, 20b can rotate relative to each other, and then adjust or lock the first part according to the demand. The angle between the part 10, 10b and the second part 20, 20a, 20b.

Although the present invention has been disclosed above with the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention should be defined by the scope of the appended patent application.

1: Tool locking device

10: First part

11: first end

12: Second end

13: Perforation

131: The first card system department

132: positioning groove

L13: Vertical axis

20: Second part

21: The first part

211: connection part

22:Second part

221: The second card system department

222: through hole

223: ring groove

23: Positioning group

231: Positioning piece

232: Bias

24: Fasteners

Claims (7)

A tool locking device, comprising: a first part having a perforation, and the inner wall of the perforation is provided with a first clamping part, the first part defines a first end and a second end opposite to the first end end, the perforation is formed at the second end of the first component along a longitudinal axis and runs through opposite sides of the second end, the perforation has a small diameter section, a large diameter section communicating with the small diameter section, and a forming a constricted part on the side of the large diameter section opposite to the small diameter section; and a second part, which is selectively rotatably connected to the through hole and is provided with a first detachably clamped on the first clamping part. Two clamping parts, and the second component is configured to be able to move relative to the through hole in an unlocked position where the second clamping part is separated from the first clamping part and a second clamping part is clamped on the first clamping part The locking position of a clamping part can be changed between the locking position, so that the second part and the through hole can be selectively rotated relative to each other, and the second part is configured to be able to move relative to the through hole along the longitudinal axis to be in the unlocking position and the locking position. The second part has a first part and a second part connected to the first part, the second part is selectively rotatably connected to the through hole, and the second clamping part is formed on the second part. On the outer peripheral surface of the two parts, the first clamping part is formed on the small diameter section, the second part has a large diameter part, a small diameter part connected to the large diameter part, and a small diameter part formed between the large diameter part and the small diameter part. The shoulder portion between the diameter portions, the second clamping portion is formed on the large diameter portion, and the tool locking device further includes an elastic member, and the opposite ends of the elastic member elastically abut against the retracted portion and the shoulder respectively. portion to bias the second member toward the locked position. The tool locking device as claimed in claim 1, wherein the first clamping portion and the second clamping portion respectively have a plurality of teeth that can engage with each other. The tool locking device according to claim 1, wherein the inner wall of the through hole is further provided with at least one positioning groove adjacent to the first clamping part, and the second part forms a through hole radially along the longitudinal axis It also includes a positioning group disposed in the through hole, and the positioning group selectively abuts against the at least one positioning groove as the second component moves relative to the through hole. The tool locking device according to claim 3, wherein the through hole runs through opposite sides of the second part, the at least one positioning groove includes two spaced apart positioning grooves, and the positioning group includes two selectively abutting on the The positioning parts of the two positioning grooves and a biasing part biasing the two positioning parts toward the two positioning grooves; when the second part is in the unlocking position, the two positioning parts abut against one of the two positioning grooves; The second component is located at the locking position, and the two positioning members abut against the other positioning groove. A tool locking device, comprising: a first part having a perforation, and the inner wall of the perforation is provided with a first clamping part, the first part defines a first end and a second end opposite to the first end end, the through hole is formed along a longitudinal axis at the second end of the first part and runs through opposite sides of the second end; and a second part is selectively rotatably connected to the through hole and provided with a detachable snap The second clamping part is constrained to the first clamping part, and the second part is configured to be able to move relative to the through hole in an unlocked position where the second clamping part is separated from the first clamping part and an unlocked position of the first clamping part. The second clamping part is clamped to change between the locked positions of the first clamping part, so that the second component and the through hole can be selectively rotated relative to each other, and the second component is configured to be able to relatively rotate along the longitudinal axis. the through hole moves to switch between the unlocked position and the locked position, the second part has a first part and a second part connected to the first part, the second part is selectively rotatably connected to the through hole , the second clamping portion is formed on the outer peripheral surface of the second part; a third part, the third part forms a pair of pivot holes that should be perforated along the longitudinal axis, and the inner wall of the pivot hole is provided with two phases Spaced positioning grooves, the first part of the second part can selectively rotate through the pivot hole and the through hole, the first part forms a through hole in the radial direction of the longitudinal axis, and the second part A positioning group is included in the through hole, and the positioning group selectively abuts against one of the two positioning grooves as the second component moves relative to the through hole and the pivot hole. The tool locking device as claimed in claim 5, wherein the positioning group includes a positioning member selectively abutting against one of the two positioning grooves and a biasing member biasing the positioning member toward one of the two positioning grooves When the second part is at the unlocking position, the positioning part abuts against one of the two positioning grooves; when the second part is at the locking position, the positioning part abuts against the other positioning groove. A tool locking device, comprising: a first part having a through hole, the inner wall of the through hole is provided with at least one positioning groove; and a second part, selectively rotatably connected to the through hole and configured to be able to relatively The hole moves, the second component forms a through hole and includes a positioning group disposed in the through hole, and the positioning group selectively abuts against the at least one positioning groove as the second component moves relative to the through hole, the through hole The hole runs through opposite sides of the second part, the at least one positioning groove includes two positioning grooves, the positioning group includes two positioning pieces selectively abutting on the two positioning grooves and a biasing of the two positioning grooves toward the two positioning grooves. Offset for locators.

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