Unlocking tool

Abstract

The utility model discloses an unlocking tool. The unlocking tool comprises a first tool half body and a second tool half body, wherein the first tool half body comprises a first handle part and a first half cylinder part connected with one end of the first handle part; and the second tool half body comprises a second handle part and a second half cylinder part connected with one end of the second handle part. One side of the first handle part and one side of the second handle part are rotationally connected together, so that the first tool half body and the second tool half body can be rotationally opened and closed, and the first half cylinder part and the second half cylinder part are combined into a cylindrical end part when the first tool half body and the second tool half body are closed. The cylindrical end portion is suitable for being sleeved on a cable of a cable assembly and is suitable for being inserted into a mounting hole of a connector shell so as to simultaneously push a plurality of locking elastic sheets jointed with a terminal of the cable assembly to an unlocking position separated from the terminal, so that the cable assembly can be pulled out along with the unlocking tool. The unlocking tool is simple in structure, convenient to use and capable of being operated by one hand.

Description

Technical Field

[0001] The utility model relates to an unlocking tool and a method for pulling a cable assembly out of a connector housing by utilizing the unlocking tool. Background Art

[0002] In the prior art, a connector generally includes a connector housing and a cable assembly. The cable assembly includes a cable and a terminal fixed to the end of the cable. The terminal of the cable assembly is inserted into the mounting hole of the connector housing. A plurality of locking springs are provided in the connector housing, and the plurality of locking springs engage with the terminals of the cable assembly to lock the terminals of the cable assembly in the connector housing. When the cable assembly needs to be pulled out of the connector housing, an unlocking tool is required to simultaneously push the plurality of locking springs in the connector housing to an unlocking position that is disassembled from the terminals of the cable assembly. In the prior art, the unlocking tool generally includes two semi-cylindrical parts, and the two semi-cylindrical parts can be snapped together to form a complete cylindrical part. However, the unlocking tool requires two-handed operation, which is inconvenient to use. Utility Model Content

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the utility model, an unlocking tool is provided. The unlocking tool comprises: a first tool half body, comprising a first handle portion and a first semi-cylinder portion connected to one end of the first handle portion; and a second tool half body, comprising a second handle portion and a second semi-cylinder portion connected to one end of the second handle portion. One side of the first handle portion and the second handle portion are rotatably connected together, so that the first and second tool halves can be rotatably opened and closed, and the first and second semi-cylinder portions are combined into a cylindrical end portion when the first and second tool halves are closed. The cylindrical end portion is suitable for being sleeved on a cable of a cable assembly and for being inserted into a mounting hole of a connector housing, so as to simultaneously push a plurality of locking springs engaged with the terminals of the cable assembly to an unlocking position separated from the terminals, so that the cable assembly can be pulled out together with the unlocking tool.

[0005] According to an exemplary embodiment of the present invention, when the first tool half and the second tool half are closed, the side edges of the first semi-cylindrical portion and the side edges of the second semi-cylindrical portion contact each other, so that the first semi-cylindrical portion and the second semi-cylindrical portion are combined into a complete cylindrical end.

[0006] According to another exemplary embodiment of the utility model, when the first tool half body and the second tool half body are closed, the side edge of the first semi-cylindrical portion and the side edge of the second semi-cylindrical portion do not contact each other, and there is a predetermined gap therebetween, and the width of the predetermined gap in the circumferential direction of the cylindrical end is smaller than the width of the locking spring in the circumferential direction.

[0007] According to another exemplary embodiment of the utility model, when the first tool half and the second tool half are closed, the first handle portion and the second handle portion are combined into a semi-cylinder with an open side, so that the semi-cylinder and the cable accommodated in the semi-cylinder can be clamped simultaneously with one hand, so that the unlocking tool and the cable assembly can be pulled out together with one hand.

[0008] According to another exemplary embodiment of the present invention, the semi-cylinder has a semi-circular slot hole axially connected to the inner cavity of the cylindrical end portion, so as to allow the cable to pass through the cylindrical end portion and the semi-cylinder along the axial direction.

[0009] According to another exemplary embodiment of the utility model, a first connecting ear is formed on one side of the first handle portion, and a second connecting ear is formed on one side of the second handle portion, and the first connecting ear and the second connecting ear are axially opposite to each other and are rotationally connected together, so that the first tool half and the second tool half can be rotatably opened and closed.

[0010] According to another exemplary embodiment of the utility model, the unlocking tool further comprises: a pivot passing through the first connecting ear and the second connecting ear. The first connecting ear and the second connecting ear are rotatably matched with the pivot, so that the first tool half body and the second tool half body can rotate around the pivot.

[0011] According to another exemplary embodiment of the utility model, through holes are formed on the first connecting ear and the second connecting ear respectively to allow the pivot to pass through, and a threaded portion suitable for threaded connection with a nut is formed on the end of the pivot. The unlocking tool also includes a nut threadedly connected to the end of the pivot to prevent the pivot from being separated from the first connecting ear and the second connecting ear.

[0012] According to another exemplary embodiment of the utility model, a threaded hole is formed on at least one of the first connecting ear and the second connecting ear, and a threaded portion threadedly connected to the threaded hole is formed on the pivot to prevent the pivot from detaching from the first connecting ear and the second connecting ear.

[0013] According to another exemplary embodiment of the utility model, a threaded portion suitable for threaded connection with a nut is formed on the end of the pivot. The unlocking tool also includes: a nut threadedly connected to the end of the pivot to prevent the pivot from being separated from the first connecting ear and the second connecting ear.

[0014] According to another exemplary embodiment of the utility model, the unlocking tool further includes: a reset torsion spring, which is sleeved on the pivot and compressed between the first handle portion and the second handle portion, and is used to automatically reset the first tool half body and the second tool half body to an open position.

[0015] According to another exemplary embodiment of the utility model, a first insertion hole is formed on the first handle part, and a second insertion hole is formed on the second handle part. The reset torsion spring includes: a spiral body, which is sleeved on the pivot; a first torsion arm, which is connected to the spiral body and inserted into the first insertion hole of the first handle part; and a second torsion arm, which is connected to the spiral body and inserted into the second insertion hole of the second handle part.

[0016] According to another exemplary embodiment of the utility model, a pair of first connecting ears are formed on one side of the first handle portion, a pair of second connecting ears are formed on one side of the second handle portion, the pair of second connecting ears are located between the pair of first connecting ears, and the reset torsion spring is located between the pair of second connecting ears.

[0017] According to another aspect of the present invention, a cable assembly extraction method is provided. The cable assembly extraction method comprises the following steps:

[0018] S10: providing the aforementioned unlocking tool;

[0019] S20: holding the unlocking tool in the open position with one hand and moving it toward the cable of the cable assembly, so that the cable of the cable assembly enters between the first half-cylinder part and the second half-cylinder part of the unlocking tool;

[0020] S30: holding the first handle portion and the second handle portion of the unlocking tool with one hand, so that the unlocking tool is rotated from the open position to the closed position;

[0021] S40: inserting the cylindrical end of the unlocking tool into the mounting hole on the connector housing, so as to simultaneously push the multiple locking springs in the connector housing to an unlocking position separated from the terminals of the cable assembly through the cylindrical end;

[0022] S50: Clamp the half cylinder of the unlocking tool and the cable with one hand and pull out the unlocking tool and the cable assembly simultaneously, so as to pull the unlocking tool and the cable assembly out of the connector housing together.

[0023] In the aforementioned various exemplary embodiments according to the present utility model, the unlocking tool has a simple structure and is easy to use, and can pull the cable assembly out of the connector housing by single-handed operation.

[0024] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the front, wherein the unlocking tool is in an open position;

[0026] Figure 2 A perspective schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the back, wherein the unlocking tool is in an open position;

[0027] Figure 3 An exploded schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the back;

[0028] Figure 4 A perspective schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the front, wherein the unlocking tool is in a closed position;

[0029] Figure 5 A perspective schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the back, wherein the unlocking tool is in a closed position;

[0030] Figure 6 A schematic plan view showing a connector according to an exemplary embodiment of the present utility model;

[0031] Figure 7 A schematic diagram showing that the unlocking tool is put on the cable assembly and inserted into the mounting hole of the connector housing;

[0032] Figure 8 A schematic diagram showing the insertion of the cylindrical end of the unlocking tool into the mounting hole of the connector housing;

[0033] Fig. 9 A schematic diagram showing the unlocking tool and the cable assembly being pulled out of the mounting hole of the connector housing. DETAILED DESCRIPTION

[0034] The technical solution of the utility model is further specifically described below through examples and in combination with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the implementation mode of the utility model with reference to the accompanying drawings is intended to explain the overall utility model concept of the utility model, and should not be understood as a limitation of the utility model.

[0035] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0036] According to an overall technical concept of the utility model, an unlocking tool is provided. The unlocking tool comprises: a first tool half body, comprising a first handle portion and a first semi-cylinder portion connected to one end of the first handle portion; and a second tool half body, comprising a second handle portion and a second semi-cylinder portion connected to one end of the second handle portion. One side of the first handle portion and the second handle portion are rotatably connected together, so that the first and second tool halves can be rotatably opened and closed, and the first and second semi-cylinder portions are combined into a cylindrical end portion when the first and second tool halves are closed. The cylindrical end portion is suitable for being sleeved on a cable of a cable assembly and for being inserted into a mounting hole of a connector housing, so as to simultaneously push a plurality of locking springs engaged with the terminals of the cable assembly to an unlocking position separated from the terminals, so that the cable assembly can be pulled out together with the unlocking tool.

[0037] According to another general technical concept of the utility model, a cable assembly extraction method is provided. The cable assembly extraction method comprises the following steps: providing the aforementioned unlocking tool; holding the unlocking tool in an open position with one hand and moving it toward the cable of the cable assembly, so that the cable of the cable assembly enters between the first semi-cylinder and the second semi-cylinder of the opened unlocking tool; holding the first handle part and the second handle part of the unlocking tool with one hand, so that the unlocking tool is rotated from the open position to the closed position; inserting the cylindrical end of the unlocking tool into the mounting hole on the connector housing, so as to simultaneously push the multiple locking springs in the connector housing to the unlocking position separated from the terminals of the cable assembly through the cylindrical end; clamping the semi-cylinder of the unlocking tool and the cable with one hand and pulling out the unlocking tool and the cable assembly outward at the same time, so as to pull out the unlocking tool and the cable assembly from the connector housing together.

[0038] Figure 1A perspective schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the front, wherein the unlocking tool is in an open position; Figure 2 A perspective schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the back, wherein the unlocking tool is in an open position; Figure 3 An exploded schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the back;

[0039] Figure 4 A perspective schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the front, wherein the unlocking tool is in a closed position; Figure 5 A perspective schematic diagram showing an unlocking tool according to an exemplary embodiment of the utility model when viewed from the back, wherein the unlocking tool is in a closed position; Figure 6 A schematic plan view showing a connector according to an exemplary embodiment of the present utility model; Figure 7 A schematic diagram showing that the unlocking tool is put on the cable assembly 2 and inserted into the mounting hole 31 of the connector housing 3;

[0040] Figure 8 A schematic diagram showing the insertion of the cylindrical end portion 12 of the unlocking tool into the mounting hole 31 of the connector housing 3; Fig. 9 The schematic diagram shows the unlocking tool and the cable assembly 2 being pulled out from the mounting hole 31 of the connector housing 3 .

[0041] like Figures 1 to 9 As shown, in an exemplary embodiment of the utility model, an unlocking tool is disclosed. The unlocking tool comprises: a first tool half body 10a and a second tool half body 10b. The first tool half body 10a comprises a first handle portion 11a and a first semi-cylinder portion 12a connected to one end of the first handle portion 11a. The second tool half body 10b comprises a second handle portion 11b and a second semi-cylinder portion 12b connected to one end of the second handle portion 11b.

[0042] like Figures 1 to 9 As shown, in the illustrated embodiment, one side of the first handle portion 11a and the second handle portion 11b are rotatably connected together, so that the first tool half body 10a and the second tool half body 10b can be rotatably opened and closed, and the first semi-cylindrical portion 12a and the second semi-cylindrical portion 12b are combined into a cylindrical end portion 12 when the first tool half body 10a and the second tool half body 10b are closed. The cylindrical end portion 12 is suitable for being sleeved on the cable 21 of the cable assembly 2 and suitable for being inserted into the mounting hole 31 of the connector housing 3, so as to simultaneously push the multiple locking springs 32 engaged with the terminals 22 of the cable assembly 2 to the unlocking position separated from the terminals 22, so that the cable assembly 2 can be pulled out together with the unlocking tool.

[0043] like Figures 1 to 9 As shown, in the illustrated embodiment, when the first tool half 10a and the second tool half 10b are closed, the side edges 12c of the first semi-cylindrical portion 12a and the side edges 12c of the second semi-cylindrical portion 12b contact each other, so that the first semi-cylindrical portion 12a and the second semi-cylindrical portion 12b are combined into a complete cylindrical end portion 12.

[0044] However, the present invention is not limited to the illustrated embodiments. For example, in another exemplary embodiment of the present invention, when the first tool half 10a and the second tool half 10b are closed, the side 12c of the first semi-cylindrical portion 12a and the side 12c of the second semi-cylindrical portion 12b are not in contact, and there is a predetermined gap therebetween, and the width of the predetermined gap in the circumferential direction of the cylindrical end portion 12 is smaller than the width of the locking spring 32 in the circumferential direction.

[0045] like Figures 1 to 9 As shown, in the illustrated embodiment, when the first tool half 10a and the second tool half 10b are closed, the first handle portion 11a and the second handle portion 11b are combined into a semi-cylinder 11 with an open side, so that the semi-cylinder 11 and the cable 21 accommodated in the semi-cylinder 11 can be clamped simultaneously with one hand, so that the unlocking tool and the cable assembly 2 can be pulled out together with one hand.

[0046] like Figures 1 to 9 As shown, in the illustrated embodiment, the semi-cylinder 11 has a semi-circular slot 101 axially connected to the inner cavity 102 of the cylindrical end 12 to allow the cable 21 to pass through the cylindrical end 12 and the semi-cylinder 11 along the axial direction.

[0047] like Figures 1 to 9 As shown, in the illustrated embodiment, a first connecting ear 13a is formed on one side of the first handle portion 11a, and a second connecting ear 13b is formed on one side of the second handle portion 11b. The first connecting ear 13a and the second connecting ear 13b are axially opposite to each other and are rotationally connected together, so that the first tool half 10a and the second tool half 10b can be rotatably opened and closed.

[0048] like Figures 1 to 9 As shown, in the illustrated embodiment, the unlocking tool further comprises a pivot 14, which passes through the first connecting ear 13a and the second connecting ear 13b. The first connecting ear 13a and the second connecting ear 13b are rotatably matched with the pivot 14, so that the first tool half 10a and the second tool half 10b can rotate around the pivot 14.

[0049] like Figures 1 to 9As shown, in the illustrated embodiment, through holes 13c are formed on the first connecting ear 13a and the second connecting ear 13b respectively, allowing the pivot 14 to pass through, and a threaded portion 14a suitable for being threadedly connected to a nut 15 is formed on the end of the pivot 14. The unlocking tool also includes a nut 15, which is threadedly connected to the end of the pivot 14 to prevent the pivot 14 from being separated from the first connecting ear 13a and the second connecting ear 13b.

[0050] However, the present invention is not limited to the illustrated embodiments. For example, in another exemplary embodiment of the present invention, a threaded hole is formed on at least one of the first connecting ear 13a and the second connecting ear 13b, and a threaded portion threadedly connected to the threaded hole is formed on the pivot 14 to prevent the pivot 14 from disengaging from the first connecting ear 13a and the second connecting ear 13b.

[0051] like Figures 1 to 9 As shown, in the illustrated embodiment, the unlocking tool further comprises a reset torsion spring 16 which is sleeved on the pivot 14 and compressed between the first handle portion 11a and the second handle portion 11b for automatically resetting the first tool half 10a and the second tool half 10b to the open position.

[0052] like Figures 1 to 9 As shown, in the illustrated embodiment, a first insertion hole 101a is formed on the first handle portion 11a, and a second insertion hole 101b is formed on the second handle portion 11b. The return torsion spring 16 includes: a spiral body 160, a first torsion arm 16a and a second torsion arm 16b. The spiral body 160 of the return torsion spring 16 is sleeved on the pivot 14. The first torsion arm 16a is connected to the spiral body 160 and inserted into the first insertion hole 101a of the first handle portion 11a. The second torsion arm 16b is connected to the spiral body 160 and inserted into the second insertion hole 101b of the second handle portion 11b.

[0053] like Figures 1 to 9 As shown, in the illustrated embodiment, a pair of first connecting ears 13a are formed on one side of the first handle portion 11a, and a pair of second connecting ears 13b are formed on one side of the second handle portion 11b, the pair of second connecting ears 13b are located between the pair of first connecting ears 13a, and the reset torsion spring 16 is located between the pair of second connecting ears 13b.

[0054] like Figures 1 to 9 As shown, in another exemplary embodiment of the present utility model, a cable assembly extraction method is also disclosed. The cable assembly extraction method comprises the following steps:

[0055] S10: Provide Figure 1-5 Unlocking tool as shown;

[0056] S20: Figures 1 to 6As shown, the unlocking tool in the open position is grasped by one hand and moved toward the cable 21 of the cable assembly 2, so that the cable 21 of the cable assembly 2 enters between the first half-cylinder portion 12a and the second half-cylinder portion 12b of the opened unlocking tool;

[0057] S30: Figures 1 to 6 As shown, the first handle portion 11a and the second handle portion 11b of the unlocking tool are grasped by one hand, so that the unlocking tool is rotated from the open position to the closed position;

[0058] S40: Figure 7 and Figure 8 As shown, the cylindrical end portion 12 of the unlocking tool is inserted into the mounting hole 31 on the connector housing 3, so that the multiple locking springs 32 in the connector housing 3 are simultaneously pushed to the unlocking position separated from the terminal 22 of the cable assembly 2 by the cylindrical end portion 12;

[0059] S50: Fig. 9 As shown, the half cylinder 11 and the cable 21 of the unlocking tool are clamped with one hand and the unlocking tool and the cable assembly 2 are pulled outward at the same time, so as to pull the unlocking tool and the cable assembly 2 out of the connector housing 3 together.

[0060] Those skilled in the art will appreciate that the embodiments described above are exemplary and can be improved upon by those skilled in the art. The structures described in the various embodiments can be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present utility model.

[0061] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementation modes of the present invention and should not be construed as limiting the present invention.

[0062] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined by the claims and their equivalents.

[0063] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element number of the claims should not be construed as limiting the scope of the present invention.

Claims

1. An unlocking tool, characterized in that: include: A first tool half body (10a) comprising a first handle portion (11a) and a first semi-cylinder portion (12a) connected to one end of the first handle portion (11a); and A second tool half body (10b) comprising a second handle portion (11b) and a second semi-cylinder portion (12b) connected to one end of the second handle portion (11b); One side of the first handle portion (11a) and the second handle portion (11b) are rotatably connected together so that the first and second tool halves (10a, 10b) can be rotatably opened and closed, and the first and second half barrel portions (12a, 12b) are combined into a barrel end portion (12) when the first and second tool halves (10a, 10b) are closed. The cylindrical end (12) is suitable for being sleeved on the cable (21) of the cable assembly (2) and for being inserted into the mounting hole (31) of the connector housing (3) so as to simultaneously push a plurality of locking springs (32) engaged with the terminals (22) of the cable assembly (2) to an unlocking position separated from the terminals (22), so that the cable assembly (2) can be pulled out together with the unlocking tool.

2. The unlocking tool according to claim 1, characterized in that: When the first tool half (10a) and the second tool half (10b) are closed, the side edge (12c) of the first semi-cylindrical portion (12a) and the side edge (12c) of the second semi-cylindrical portion (12b) contact each other, so that the first semi-cylindrical portion (12a) and the second semi-cylindrical portion (12b) are combined into a complete cylindrical end portion (12).

3. The unlocking tool according to claim 1, characterized in that: When the first tool half body (10a) and the second tool half body (10b) are closed, the side edge (12c) of the first semi-cylindrical portion (12a) and the side edge (12c) of the second semi-cylindrical portion (12b) are not in contact, and there is a predetermined gap between them, and the width of the predetermined gap in the circumferential direction of the cylindrical end portion (12) is smaller than the width of the locking spring plate (32) in the circumferential direction.

4. The unlocking tool according to claim 1, characterized in that: When the first tool half body (10a) and the second tool half body (10b) are closed, the first handle part (11a) and the second handle part (11b) are combined into a semi-cylinder (11) with an open side, so that the semi-cylinder (11) and the cable (21) accommodated in the semi-cylinder (11) can be clamped simultaneously with one hand, so that the unlocking tool and the cable assembly (2) can be pulled out together with one hand.

5. The unlocking tool according to claim 4, characterized in that: The semi-cylinder (11) has a semi-circular slot (101) axially connected to the inner cavity (102) of the cylindrical end (12), so as to allow the cable (21) to pass axially through the cylindrical end (12) and the semi-cylinder (11).

6. The unlocking tool according to claim 1, characterized in that: A first connecting ear (13a) is formed on one side of the first handle portion (11a), and a second connecting ear (13b) is formed on one side of the second handle portion (11b). The first connecting ear (13a) and the second connecting ear (13b) are axially opposite to each other and are rotatably connected together, so that the first tool half body (10a) and the second tool half body (10b) can be rotatably opened and closed.

7. The unlocking tool according to claim 6, characterized in that: Also includes: A pivot (14) passes through the first connecting ear (13a) and the second connecting ear (13b), The first connecting ear (13a) and the second connecting ear (13b) are rotatably matched with the pivot (14), so that the first tool half body (10a) and the second tool half body (10b) can rotate around the pivot (14).

8. The unlocking tool according to claim 7, characterized in that: A through hole (13c) is formed on the first connecting ear (13a) and the second connecting ear (13b) respectively to allow the pivot (14) to pass through, and a threaded portion (14a) suitable for threaded connection with a nut (15) is formed on the end of the pivot (14); The unlocking tool also includes: A nut (15) is threadedly connected to the end of the pivot (14) to prevent the pivot (14) from being separated from the first connecting ear (13a) and the second connecting ear (13b).

9. The unlocking tool according to claim 7, characterized in that: A threaded hole is formed on at least one of the first connecting ear (13a) and the second connecting ear (13b), and a threaded portion threadedly connected to the threaded hole is formed on the pivot (14) to prevent the pivot (14) from being separated from the first connecting ear (13a) and the second connecting ear (13b).

10. The unlocking tool according to claim 9, characterized in that: A threaded portion (14a) suitable for being threadedly connected with a nut (15) is formed on the end of the pivot (14); The unlocking tool also includes: A nut (15) is threadedly connected to the end of the pivot (14) to prevent the pivot (14) from being separated from the first connecting ear (13a) and the second connecting ear (13b).

11. The unlocking tool according to claim 7, characterized in that: Also includes: A return torsion spring (16) is sleeved on the pivot (14) and compressed between the first handle portion (11a) and the second handle portion (11b), and is used to automatically return the first tool half body (10a) and the second tool half body (10b) to an open position.

12. The unlocking tool according to claim 11, characterized in that: A first insertion hole (101a) is formed on the first handle portion (11a), and a second insertion hole (101b) is formed on the second handle portion (11b); The return torsion spring (16) comprises: A spiral body (160) is mounted on the pivot (14); A first torsion arm (16a) connected to the spiral body (160) and inserted into the first insertion hole (101a) of the first handle portion (11a); and The second torsion arm (16b) is connected to the spiral body (160) and is inserted into the second insertion hole (101b) of the second handle portion (11b).

13. The unlocking tool according to claim 11, characterized in that: A pair of first connecting ears (13a) is formed on one side of the first handle portion (11a), and a pair of second connecting ears (13b) is formed on one side of the second handle portion (11b), the pair of second connecting ears (13b) is located between the pair of first connecting ears (13a), and the return torsion spring (16) is located between the pair of second connecting ears (13b).

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