Tool locking device

Abstract

The present invention provides a tool locking device comprising a first component and a second component. The first component has a through-hole, and a first engaging portion is provided on the inner wall surface of the through-hole. The second component is selectively rotatably connected to the through-hole and is provided with a second engaging portion that is detachably engaged with the first engaging portion. The second component is configured to be movable relative to the through-hole and to switch between an unlocked position in which the second engaging portion is disengaged from the first engaging portion and a locked position in which the second engaging portion is engaged with the first engaging portion, thereby enabling selective relative rotation of the second component and the through-hole.

Description

Technical Field

[0001] The present invention relates to a locking device, in particular to a tool locking device, which enables the tool to selectively adjust or lock the relative angle between two parts. Background Art

[0002] Tools that can be adjusted to suit working environments or other needs typically have two components that pivot relative to each other, such as the head and handle of a crank wrench. However, these tools typically utilize only a pin extending through the two components to pivotally connect them. However, these components lack a suitable locking device to lock the angle between them. Consequently, the adjusted angle between the two components can change during operation due to applied force, hindering continuous operation. Summary of the Invention

[0003] An object of the present invention is to provide a tool locking device, which can selectively adjust or lock the relative angle between a first component and a second component.

[0004] The present invention provides a tool locking device comprising a first component and a second component. The first component has a through-hole, and a first latching portion is provided on the inner wall surface of the through-hole. The second component is selectively rotatably connected to the through-hole and is provided with a second latching portion that is detachably latched to the first latching portion. The second component is configured to be movable relative to the through-hole and to switch between an unlocked position in which the second latching portion is detached from the first latching portion and a locked position in which the second latching portion is latched to the first latching portion, thereby enabling selective relative rotation of the second component and the through-hole.

[0005] In one embodiment of the present invention, the first locking portion and the second locking portion respectively have a plurality of teeth that can mesh with each other.

[0006] In one embodiment of the present invention, the first component defines a first end and a second end opposite the first end. A through-hole is formed along a longitudinal axis at the second end of the first component and extends through opposite sides of the second end. The second component is configured to move relative to the through-hole along the longitudinal axis to switch between an unlocked position and a locked position. The second component includes a first portion and a second portion connected to the first portion. The second portion is selectively rotatably connected to the through-hole. The second engaging portion is formed on the outer peripheral surface of the second portion.

[0007] In one embodiment of the present invention, the inner wall of the through-hole is further provided with at least one positioning groove adjacent to the first retaining portion. The second portion is provided with a through-hole radially along the longitudinal axis and includes a positioning member disposed within the through-hole. The positioning member selectively abuts against the at least one positioning groove as the second member moves relative to the through-hole.

[0008] In one embodiment of the present invention, the through hole extends through opposite sides of the second portion. The at least one positioning groove includes two spaced-apart positioning grooves. The positioning assembly includes two positioning members that selectively abut the two positioning grooves and a biasing member that biases the two positioning members toward the two positioning grooves. When the second component is in the unlocked position, the two positioning members abut one of the two positioning grooves. When the second component is in the locked position, the two positioning members abut the other positioning groove.

[0009] In another embodiment of the present invention, the through-hole comprises a small diameter section, a large diameter section connecting to the small diameter section, and a recessed portion formed on the side of the large diameter section opposite the small diameter section, with the first retaining portion formed on the small diameter section. The second portion comprises a large diameter section, a small diameter section connecting to the large diameter section, and a shoulder formed between the large and small diameter sections, with the second retaining portion formed on the large diameter section. The tool locking device further includes an elastic member, with opposite ends of the elastic member elastically abutting the recessed portion and the shoulder, respectively, to bias the second member toward the locked position.

[0010] In another embodiment of the present invention, the tool locking device further includes a third component. The third component has a pivot hole formed along the longitudinal axis corresponding to the through-hole, and the inner wall of the pivot hole is provided with two spaced-apart positioning grooves. A first portion of the second component selectively rotatably extends through the pivot hole and the through-hole, and the first portion forms a through-hole radially along the longitudinal axis. The second component further includes a positioning assembly disposed in the through-hole, and the positioning assembly selectively abuts one of the two positioning grooves as the second component moves relative to the through-hole and the pivot hole.

[0011] In another embodiment of the present invention, the positioning assembly includes a positioning member that selectively abuts the two positioning grooves and a biasing member that biases the positioning member. When the second component is in the unlocked position, the positioning member abuts one of the two positioning grooves. When the second component is in the locked position, the positioning member abuts the other positioning groove.

[0012] The present invention further provides a tool locking device comprising a first component and a second component. The first component has a through-hole, the inner wall of which is provided with at least one positioning groove. The second component is selectively rotatably connected to the through-hole and is configured to move relative to the through-hole. The second component defines 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.

[0013] In one embodiment of the present invention, the through hole passes through opposite sides of the second portion. The at least one positioning groove includes two positioning grooves. The positioning assembly includes two positioning members selectively abutting against the two positioning grooves and a biasing member biasing the two positioning members toward the two positioning grooves.

[0014] Based on the above, the tool locking device provided by the embodiment of the present invention utilizes a second component that is selectively rotatably connected to a through-hole of a first component. The second component is movable relative to the through-hole, switching between an unlocked position in which the second latching portion disengages from the first latching portion and a locked position in which the second latching portion is engaged with the first latching portion, thereby controlling the relative rotation of the second component and the through-hole. Thus, the angle between the first and second components can be adjusted or locked as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic three-dimensional appearance diagram of the first embodiment of the tool locking device of the present invention.

[0016] Figure 2 yes Figure 1 A partially exploded schematic diagram of the tool locking device shown.

[0017] Figure 3 yes Figure 1 The schematic cross-sectional view of the tool locking device shows that the second component is in the unlocked position.

[0018] Figure 4 yes Figure 1 Another cross-sectional schematic diagram of the tool locking device is shown, indicating that the second component is in the locked position.

[0019] Figure 5 yes Figure 1 The schematic diagram of the use of the tool locking device shown shows that the tool locking device is connected to the wrench.

[0020] Figure 6 It is a partially exploded schematic diagram of the second embodiment of the tool locking device of the present invention.

[0021] Figure 7 yes Figure 6 The schematic cross-sectional view of the tool locking device shows that the second component is in the locked position.

[0022] Figure 8 yes Figure 6 Another schematic cross-sectional view of the tool locking device shows that the second component is in the unlocked position.

[0023] Figure 9 It is a partially exploded schematic diagram of the third embodiment of the tool locking device of the present invention.

[0024] Figure 10 yes Figure 9 The schematic cross-sectional view of the tool locking device shows that the second component is in the unlocked position.

[0025] Figure 11 yes Figure 9 Another cross-sectional schematic diagram of the tool locking device is shown, indicating that the second component is in the locked position.

[0026] Explanation of reference numerals: 1-tool locking device, 10-first component, 11-first end, 12-second end, 13-through hole, L13-longitudinal axis, 131-first clamping portion, 132-positioning groove, 20-second component, 21-first portion, 211-connecting portion, 22-second portion, 221-second clamping portion, 222-through hole, 223-ring groove, 23-positioning group, 231-positioning member, 232-biasing member, 24-fastener, 2-wrench, 1a-tool locking device, 13a-through hole, 131a-first clamping portion, 132a-small diameter section, 133a-large diameter section, 134a-retracted portion, 20 a-second component, 21a-first part, 22a-second part, 221a-second clamping part, 222a-large diameter part, 223a-small diameter part, 224a-shoulder, 23a-elastic part, 1b-tool locking device, 13b-through hole, 131b-annular groove, 14b-cover part, 15b-fastener, 20b-second component, 21b-first part, 211b-through hole, 22b-second part, 23b-positioning group, 231b-positioning part, 232b-biasing part, 24b-first pressing part, 25b-second pressing part, 30b-third component, 31b-pivot hole, 311b-positioning groove. DETAILED DESCRIPTION

[0027] Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Reference symbols in the following description will be used to identify identical or similar components when the same symbols appear in different figures. These embodiments are only a portion of the present invention and do not disclose all possible implementations of the present invention.

[0028] Please refer to the following order Figures 1 to 4 , which are the appearance diagram, exploded diagram and cross-sectional 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. The first component 10 forms a through-hole 13 at the second end 12, and a first clamping portion 131 is provided on the inner wall surface 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 a second clamping portion 221 is provided on the outer peripheral surface of the second portion 22 so as to be detachably clamped to the first clamping portion 131. The second component 20 is configured to be movable relative to the through-hole 13 and in an unlocked position ( Figure 3 ) and a locked position ( Figure 4 ) between them.

[0029] When the second component 20 is in the unlocked position, the second latching portion 221 disengages from the first latching portion 131, allowing the through-hole 13 and the second portion 22 to rotate relative to each other. When the second component 20 is in the locked position, the second latching portion 221 latches onto the first latching portion 131, preventing the through-hole 13 and the second portion 22 from rotating relative to each other. Thus, when the second component 20 is in the unlocked position, the user can apply force to the first component 10 to rotate the through-hole 13 and the second portion 22 relative to each other to a desired angle. Then, the user can apply force to the second component 20 to move the second portion 22 relative to the through-hole 13, thereby shifting from the unlocked position to the locked position. This prevents the through-hole 13 and the second portion 22 from rotating relative to each other, thereby locking the angle between the first component 10 and the second component 20.

[0030] It is understood that the first component 10 and the second component 20 of the tool locking device 1 of the present invention can be tools with different functions, such as wrenches, handles, etc., but are not limited thereto. They can also be adapters used to connect other tools. For example, the first end 11 of the first component 10 can be suitable for connecting to a driven component (not shown in the figure), so that the first component 10 can be used as a driving component to drive the driven component. Figure 5 As shown, the first portion 21 can form a connecting portion 211 suitable for being detachably connected to a wrench 2 without a ratchet function, and the connecting portion 211 of 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 further provided with a ratchet group that is useful for driving the driven member. The ratchet group can have a pawl and a ratchet. The engagement relationship between the pawl and the ratchet allows the ratchet to rotate in only one direction, and the ratchet group can also be provided with a dial button to change the engagement direction between the pawl and the ratchet, so that it has a reversing function. Therefore, the ratchet group provided at the first end 11 can use a currently known ratchet structure, and its structure and type (reversing or one-way) are not limited.

[0031] In order to enable the second engaging portion 221 to be detachably engaged with the first engaging portion 131 , the first engaging portion 131 and the second engaging portion 221 in this embodiment can each have a plurality of teeth that can mesh with each other.

[0032] like Figure 4 As shown, when the second component 20 is in the locked position, the first portion 21 can abut against the second end 12 to remind the user that the second component 20 has been changed from the unlocked position to the locked position.

[0033] Furthermore, the through hole 13 of this embodiment is formed along a longitudinal axis L13 at the second end 12 of the first component 10 and passes through opposite sides of the second end 12, and the second component 20 is configured to be able to move relative to the through hole 13 along the longitudinal axis L13 to change between the unlocked position and the locked position.

[0034] Furthermore, the inner wall of the through-hole 13 is further defined with at least one positioning groove 132 adjacent to the first retaining portion 131. The second portion 22 defines a through-hole 222 radially along the longitudinal axis L13. The second component 20 further includes a positioning member 23 disposed within the through-hole 222. The positioning member 23 selectively abuts against the at least one positioning groove 132 as the second component 20 moves relative to the through-hole 13.

[0035] The through hole 222 of this embodiment passes through the 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 positioning members 231 selectively abutting against the two positioning grooves 132 and a biasing member 232 biasing the two positioning members 231 toward the two positioning grooves 132. Figure 3 As shown, when the second component 20 is in the unlocked position, the two positioning members 231 abut against one of the two positioning grooves 132. Figure 4 As shown, when the second component 20 is located at the locked position, the two positioning members 231 abut against the other positioning groove 132 .

[0036] Furthermore, the two positioning members 231 of this embodiment can each be in the shape of a bead, so that when the second component 20 is in the unlocked position, friction between the through-hole 13 and the second portion 22 can be reduced, allowing for smooth relative rotation. The biasing member 232 of this embodiment can be a compression spring, with opposite ends of the biasing member 232 elastically abutting against the two positioning members 231.

[0037] In this embodiment, the second component 20 can form an annular groove 223 on the outer circumference of the second portion 22 . The second component 20 further includes a fastener 24 fastened to the annular groove 223 to prevent the second component 20 from being separated from the through hole 13 .

[0038] Please refer to Figures 6 to 8 , which are exploded and cross-sectional views of a second embodiment of a tool locking device according to the present invention. The tool locking device 1a shown in this embodiment has a substantially identical structure to the first embodiment, differing in that the through-hole 13a comprises a small-diameter section 132a, a large-diameter section 133a connecting to the small-diameter section 132a, and a recessed portion 134a formed on the side of the large-diameter section 133a opposite the small-diameter section 132a. The first engaging portion 131a is formed on the small-diameter section 132a. The second portion 22a comprises a large-diameter section 222a, a small-diameter section 223a connecting the large-diameter section 222a, and a shoulder 224a formed between the large-diameter section 222a and the small-diameter section 223a. The second engaging portion 221a is formed on the large-diameter section 222a. The tool locking device 1a further includes an elastic member 23a, whose opposite ends elastically abut the recessed portion 134a and the shoulder 224a, respectively, biasing the second component 20a toward the locked position.

[0039] like Figure 7As shown, when the second component 20b is in the locked position, the first locking portion 131a and the second locking portion 221a are locked, so that the through hole 13a and the second portion 22a cannot rotate relative to each other. The elastic member 23a in this position is not compressed. Figure 8 As shown, the user must apply force to the first portion 21a of the second component 20a to move the second portion 22a of the second component 20a relative to the through-hole 13a, thereby changing from the locked position to the unlocked position. This causes the elastic member 23a to be compressed and deformed by the shoulder 224a. The user must continue to apply force to cause the through-hole 13a and the second portion 22a to rotate relative to each other. Once the user stops applying force to the first portion 21a, the elastic member 23a elastically returns to its original position, biasing the second component 20a toward the locked position, thereby changing the second component 20b from the unlocked position to the locked position.

[0040] Please refer to Figures 9 to 11 , which are exploded and cross-sectional views of a third embodiment of a tool locking device according to the present invention. The tool locking device 1b shown in this embodiment has substantially the same structure as the first embodiment, differing in that this embodiment further includes a third component 30b pivotally connected to the second component 20b. The third component 30b defines a pivot hole 31b along the longitudinal axis L13 corresponding to the through-hole 13b. The inner wall of the pivot hole 31b is defined by two spaced-apart positioning grooves 311b. A first portion 21b of the second component 20b selectively rotatably extends through the pivot hole 31b and the through-hole 13b. The first portion 21b defines a through-hole 211b radially along the longitudinal axis L13. The second component 20b further includes a positioning member 23b disposed within the through-hole 211b. The positioning member 23b selectively abuts one of the two positioning grooves 311b as the second component 20b moves relative to the through-hole 13b and the pivot hole 31b.

[0041] Furthermore, the positioning assembly 23b of this embodiment includes a positioning member 231b selectively abutting against one of the two positioning grooves 311b and a biasing member 232b biasing the positioning member 231b toward one of the two positioning grooves (311b). Figure 10 As shown, when the second component 20b is in the unlocked position, the positioning member 231b abuts against one of the two positioning grooves 311b. Figure 11 As shown, when the second component 20b is located at the locked position, the two positioning members 231b abut against another positioning groove 311b, thereby providing a positioning effect for the second component 20b when switching between positions.

[0042] Furthermore, the first component 10b forms an annular groove 131b on the inner wall of the through-hole 13b. A cover 14b is connected to the first component 10b via a fastener 15b that snaps into the annular groove 131b. The second component 20b has a first pressing portion 24b and a second pressing portion 25b extending along the longitudinal axis L13 at the first portion 21b and the second portion 22b, respectively. The first pressing portion 24b and the second pressing portion 25b are configured to be pressed by a user to shift the second component 20b between an unlocked position and a locked position. 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.

[0043] In this embodiment, the first component 10b can be a swing wrench, and the third component 30b can be a handle and pivotally connected to the second component 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.

[0044] Based on the above, in the above embodiments of the present invention, the second components 20, 20a, 20b are selectively rotatably connected to the through-holes 13, 13a, 13b of the first components 10, 10b, and the second components 20, 20a, 20b are movable relative to the through-holes 13, 13a, 13b to switch between an unlocked position and a locked position, thereby controlling whether the through-holes 13, 13a, 13b and the second components 20, 20a, 20b can rotate relative to each other, thereby adjusting or locking the angle between the first components 10, 10b and the second components 20, 20a, 20b as needed.

[0045] The above description is only illustrative of the present invention and not restrictive. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the claims, and all of them will fall within the scope of protection of the present invention.

Claims

1. A tool locking device, characterized in that: include: A first component has a through hole, and a first clamping portion is provided on the inner wall surface of the through hole; as well as a second component selectively rotatably connected to the through-hole and provided with a second engaging portion detachably engaged with the first engaging portion, and the second component being configured to be movable relative to the through-hole and transitioning between an unlocked position in which the second engaging portion is disengaged from the first engaging portion and a locked position in which the second engaging portion is engaged with the first engaging portion, so that the second component and the through-hole can selectively rotate relative to each other; wherein the first component defines a first end and a second end opposite to the first end; the through-hole is formed along a longitudinal axis at the second end of the first component and passes through opposite sides of the second end; the second component is configured to be movable along the longitudinal axis relative to the through-hole to switch between the unlocked position and the locked position; the second component has a first portion and a second portion connected to the first portion; the second portion is selectively rotatably connected to the through-hole; and the second engaging portion is formed on an outer peripheral surface of the second portion; It also includes a third component, which forms a pivot hole corresponding to the through hole along the longitudinal axis, and the inner wall surface of the pivot hole is provided with two spaced positioning grooves. The first portion of the second component can selectively rotate and extend through the pivot hole and the through hole, and the first portion forms a through hole along the radial direction of the longitudinal axis. The second component also includes a positioning group arranged 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.

2. The tool locking device according to claim 1, wherein: The first locking portion and the second locking portion respectively have a plurality of teeth that can mesh with each other.

3. The tool locking device according to claim 1, wherein: The positioning group includes a positioning member that selectively abuts against one of the two positioning grooves and a biasing member that biases the positioning member toward one of the two positioning grooves; when the second component is in the unlocked position, the positioning member abuts against one of the two positioning grooves; when the second component is in the locked position, the positioning member abuts against the other positioning groove.

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