Foldable tool with locking mechanism

Abstract

A foldable tool with a locking mechanism includes a body, a tool head assembly, and a positioning mechanism. The tool head assembly includes at least one first tool head, one end of which is provided with a first pivoting portion. The first pivoting portion is pivotally connected to the body and has at least one first engaging portion on its outer periphery. The positioning mechanism includes a first positioning button rotatably connected to the body between a first locking position and a first releasing position. The first positioning button is provided with a first locking portion. When the first positioning button is in the first locking position, the first locking portion restricts the rotation of the first tool head relative to the body. When the first positioning button is in the first releasing position, the first locking portion releases the restriction on the rotation of the first tool head relative to the body. Through the above structure, the foldable tool facilitates user operation while providing a more efficient spatial arrangement.

Description

Folding tool with locking mechanism The present invention mainly discloses a folding tool, particularly a folding tool with a locking mechanism. Please refer to Chinese Patent No. M537006, "A Positioning Folding Tool," which is a folding tool comprising a shell, a support plate, a plurality of tool parts, a fixing part, and a positioning unit. The support plate is disposed inside the shell. Each tool part includes a positioning member with a plurality of grooves and a tool fixed to the positioning member. The fixing part includes a fixing member and a locking member. The positioning unit includes an elastic member and a positioning piece. A first end of the positioning piece is pushed by the elastic member, causing a second end of the positioning piece to present a first position. The first position is where the tool and the support plate form a first angle and are fixed to each other. Pressing the first end of the positioning piece compresses the elastic member, causing the second end of the positioning piece to present a second position. The second position is where the tool and the support plate move within a second angle range. However, the tool part and the positioning plate of the above-mentioned folding tool are located on opposite sides of the tool. If the user presses the positioning plate first, the tool needs to be flipped over to see the tool part and rotate it. The same applies if the user grabs the tool first and then presses the positioning plate. Not only is it not easy to operate, but the length of the tool part cannot be too long so as not to block the positioning plate. In view of the shortcomings of the above-mentioned conventional structures, the inventors have designed a folding tool with a locking mechanism, which can overcome all the disadvantages of the above-mentioned conventional structures. The main objective of this invention, a folding tool with a locking mechanism, is to provide a folding tool comprising a body, a tool head assembly, and a positioning mechanism. The tool head assembly includes at least one first tool head, one end of which is provided with a first pivot portion pivotally connected to the body. The first tool head has at least one first latching portion on the outer periphery of the first pivot portion. The positioning mechanism includes a first positioning button, which is rotatably connected to the body between a first locked position and a first released position about a virtual first axis. The first positioning button is provided with a first buckle and a first operating portion. In the first locked position, the first buckle engages with the first latching portion and restricts the rotation of the first tool head relative to the body. In the first released position, the first buckle disengages from the first latching portion and releases the restriction on the rotation of the first tool head relative to the body. The first operating portion protrudes from the body along the first axis. This folding tool, through the above structure, facilitates user operation and provides more efficient space configuration. The body includes a central base with an integral structure. The central base has a first pivot hole on each of its two opposite sides along the first axis. The first positioning button includes a first pin and a first fastener. The two ends of the first pin are respectively inserted into the two first pivot holes. The first fastener is disposed in the central base and can be rotatably sleeved on the first pin with the first pin as the center. The first buckle is disposed on the first fastener. The middle seat has a first sliding groove on one side along the first axis. The body includes a first side cover and a second side cover. The first side cover and the second side cover are respectively connected to opposite sides of the middle seat along the first axis. The first operating part is disposed on the first fastener. The first operating part passes through the first sliding groove and is disposed on the side of the first side cover opposite to the middle seat. The positioning mechanism includes a first elastic member with a first winding portion between its two ends. The first winding portion is wound at least once and sleeved on the first pin. One end of the first elastic member is inserted into the middle seat and the other end abuts against the side of the first fastener opposite to the first pivot portion. When the first positioning button is in the first release position, the first fastener pushes the first elastic member to twist and deform. The first elastic member can provide a thrust to move the first positioning button toward the first locking position. The body includes a first pivot and two first locking members. The first pivot is inserted into the middle seat in a direction parallel to the first axis. The two first locking members pass through the first side cover and the second side cover respectively from the side opposite to the middle seat of the first side cover and the side opposite to the middle seat of the second side cover and are connected to the first pivot by screw locking. The first pivot part is sleeved on the first pivot. The middle seat has a non-circular first limiting hole on one side adjacent to the first side cover. The first pivot has a first limiting part with a shape corresponding to the first limiting hole on one end adjacent to the first side cover along the radial outer periphery of the first pivot. The first limiting part is inserted into the first limiting hole, so that the first pivot cannot rotate relative to the middle seat. The tool head assembly includes at least one second tool head. One end of each second tool head has a second pivot portion pivotally connected to the body. At least one second locking portion is provided on the outer periphery of the second tool head. The positioning mechanism includes a second positioning button, which is rotatably connected to the body between a second locked position and a second released position about a virtual second axis. The second positioning button has a second latch and a second operating part. In the second locked position, the second latch engages with the second locking portion and restricts the second tool head from rotating relative to the body. When released, the second latch disengages from the second locking part and releases the restriction on the rotation of the second tool head relative to the body. The second operating part protrudes from the body along the second axis. The middle seat has a second pivot hole on each of its opposite sides along the second axis. The second positioning button includes a second pin and a second fastener. The two ends of the second pin are respectively inserted into the two second pivot holes. The second fastener is disposed within the middle seat and can be rotatably fitted onto the second pin with the second pin as its center. The second latch is disposed on the second fastener. The middle seat has a second sliding groove on one side along the second axis. The second operating part is disposed on the second fastener. The second operating part passes through the second slide groove and is disposed on the side of the first side cover opposite to the middle seat. The positioning mechanism includes a second elastic member with a second winding portion between its two ends. The second winding portion is wound at least once and sleeved on the second pin. One end of the second elastic member is inserted into the middle seat, and the other end abuts against the side of the second fastener opposite to the second pivot portion. When the second positioning button is in the second release position, the second fastener pushes the second elastic member to twist and deform. The second elastic member can provide a thrust to move the second positioning button to the second locking position. The body includes a second pivot and two second locking mechanisms. The second pivot is inserted into the middle seat in a direction parallel to the axial direction of the second axis. The two second locking members pass through the first side cover and the second side cover respectively from the side opposite to the middle seat and the side opposite to the middle seat and are connected to the second pivot by screws. The second pivot part is sleeved on the second pivot. The middle seat is provided with a non-circular second limiting hole on the side adjacent to the first side cover. The second pivot is provided with a second limiting part with a shape corresponding to the second limiting hole along the outer periphery of the second pivot in the radial direction at one end adjacent to the first side cover. The second limiting part is inserted into the second limiting hole, so that the second pivot cannot rotate relative to the middle seat. The first tool head and the second tool head are respectively disposed on opposite sides of the main body. The first pivot portion and the second pivot portion are respectively pivotally disposed at opposite ends of the main body. The first tool head has a first working part disposed at the end opposite to the first pivot portion, and the second tool head has a second working part disposed at the end opposite to the second pivot portion. When the first tool head and the second tool head are closed, the first working part is adjacent to the second pivot portion, and the second working part is adjacent to the first pivot portion. When the first tool head and the second tool head are extended, the first working part extends away from the second pivot portion, and the second working part extends away from the first pivot portion. The distance from the second fastener to the first pivot forms a first length, the distance from the first working part to the first pivot forms a second length, the second length being greater than the first length, the distance from the first fastener to the second pivot forms a third length, and the distance from the second working part to the second pivot forms a fourth length, the fourth length being greater than the third length. The number of at least one first locking part is several. When the first positioning button is in the first locked position, the first buckle is engaged with one of the several first locking parts, so that the first tool head is fixed in the closed, 90-degree open or 180-degree open position. The number of at least one second locking part is several. When the second positioning button is in the second locked position, the second buckle is engaged with one of the several second locking parts, so that the second tool head is fixed in the closed, 90-degree open or 180-degree open position. The first tool head has a plurality of first outer peripheral surfaces along the radial outer periphery of the first pivot. Each of the plurality of first outer peripheral surfaces is a plane extending along the tangent direction of the first pivot. Each of the plurality of first outer peripheral surfaces is located between two adjacent first locking portions. The second tool head has a plurality of second outer peripheral surfaces along the radial outer periphery of the second pivot. Each of the plurality of second outer peripheral surfaces is a plane extending along the tangent direction of the second pivot. Each of the plurality of second outer peripheral surfaces is located between two adjacent second locking portions. The number of at least one first tool head is several, and the several first tool heads are respectively pivotally mounted on the first pivot and arranged side by side with each other along the axis of the first pivot. The number of at least one second tool head is several, and the several second tool heads are respectively pivotally mounted on the second pivot and arranged side by side with each other along the axis of the second pivot. Other objects, advantages, and novelty of the invention will become more apparent from the following detailed description and the accompanying drawings. The preferred embodiment of the present invention and its effects are described in detail below with reference to the accompanying drawings. This is for illustrative purposes only and is not limited to this structure in the patent application. Referring to Figures 1 to 10, these are perspective views, exploded perspective views, cross-sectional views, operational diagrams, and usage diagrams of the folding tool with a locking mechanism according to the present invention. The folding tool 10 of the present invention includes a body 20, a tool head assembly 30, and a positioning mechanism 40; wherein: The tool head assembly 30 includes at least one first tool head 31. One end of the first tool head 31 is provided with a first pivot portion 311, which is pivotally connected to the body 20. At least one first locking portion 312 is provided on the outer periphery of the first tool head 31. The positioning mechanism 40 includes a first positioning button 41, which is rotatably connected to the body 20 between a first locked position and a first released position with a virtual first axis C1 as the center. The first positioning button 41 is provided with a first latch 411 and a first operating part 412. When the first positioning button 41 is in the first locked position, the first latch 411 is engaged with the first locking part 312 and restricts the rotation of the first tool head 31 relative to the body 20. When the first positioning button 41 is in the first released position, the first latch 411 disengages from the first locking part 312 and releases the restriction on the rotation of the first tool head 31 relative to the body 20. The first operating part 412 protrudes out of the body 20 along the first axis C1. The main body 20 includes a central base 21 with an integral structure. The central base 21 has a first pivot hole 211 on each of its opposite sides along the first axis C1. The first positioning button 41 includes a first pin 413 and a first fastener 414. The two ends of the first pin 413 are respectively inserted into the two first pivot holes 211. The first fastener 414 is disposed in the central base 21 and can be rotatably sleeved on the first pin 413 with the first pin 413 as the center. The first buckle 411 is disposed on the first fastener 414. The middle seat 21 is provided with a first slide groove 212 on one side along the first axis C1. The body 20 includes a first side cover 22 and a second side cover 23. The first side cover 22 and the second side cover 23 are respectively connected to the middle seat 21 on opposite sides along the first axis C1. The first operating part 412 is provided on the first fastener 414. The first operating part 412 passes through the first slide groove 212 and is provided on the side of the first side cover 22 opposite to the middle seat 21. The positioning mechanism 40 includes a first elastic member 42, with a first winding portion 421 between its two ends. The first winding portion 421 is wound at least once and sleeved on the first pin 413. One end of the first elastic member 42 is inserted into the middle seat 21 and the other end abuts against the side of the first fastener 414 opposite to the first pivot portion 311. When the first positioning button 41 is in the first release position, the first fastener 414 pushes the first elastic member 42 to twist and deform. The first elastic member 42 can provide a thrust to move the first positioning button 41 toward the first locking position. The body 20 includes a first pivot 24 and two first locking members 25. The first pivot 24 is inserted into the middle seat 21 in a direction parallel to the first axis C1. The two first locking members 25 pass through the first side cover 22 and the second side cover 23 respectively from the side opposite to the middle seat 21 of the first side cover 22 and the side opposite to the middle seat 21 of the second side cover 23 and are connected to the first pivot 24 by screw locking. The first pivot part 311 is sleeved on the first pivot 24. The middle seat 21 has a non-circular first limiting hole 213 on one side adjacent to the first side cover 22. The first pivot 24 has a first limiting part 241 with a shape corresponding to the first limiting hole 213 on one end adjacent to the first side cover 22 along the radial outer periphery of the first pivot 24. The first limiting part 241 is inserted into the first limiting hole 213, so that the first pivot 24 cannot rotate relative to the middle seat 21. The tool head assembly 30 includes at least one second tool head 32. One end of each second tool head 32 has a second pivot portion 321, which is pivotally connected to the body 20. At least one second locking portion 322 is provided on the outer periphery of the second tool head 32. The positioning mechanism 40 includes a second positioning button 43, which is rotatably connected to the body 20 between a second locked position and a second released position, centered on a virtual second axis C2. The second positioning button 43 has a second latch portion 431 and a second operating portion 432. When the second positioning button 43 is in the second locked position, the second latch portion 431 engages with the second locking portion 322 and restricts the second tool head 32 relative to the body 20. When the main body 20 rotates, and the second positioning button 43 is in the second release position, the second latch 431 disengages from the second locking part 322 and releases the restriction on the rotation of the second tool head 32 relative to the main body 20. The second operating part 432 protrudes from the main body 20 along the second axis C2. The middle seat 21 has a second pivot hole 214 on each of its opposite sides along the second axis C2. The second positioning button 43 includes a second pin 433 and a second fastener 434. The two ends of the second pin 433 are respectively inserted into the two second pivot holes 214. The second fastener 434 is disposed in the middle seat 21 and can be rotatably sleeved on the second pin 433 with the second pin 433 as the center. The second latch 431 is disposed in the middle seat 21. The second fastener 434 has a second sliding groove 215 on one side of the middle seat 21 along the second axis C2. The second operating part 432 is disposed on the second fastener 434, passing through the second sliding groove 215 and disposed on the side of the first side cover 22 opposite to the middle seat 21. The positioning mechanism 40 includes a second elastic member 44, with a second winding part 441 disposed between the two ends of the second elastic member 44. The second winding part 441 is wound at least once and sleeved on the second pin 433. One end of the second elastic member 44 is inserted into the middle seat 21, and the other end abuts against the side of the second fastener 434 opposite to the second pivot part 321. When the second positioning button 43 is in the second release position, the second fastener... The component 434 pushes the second elastic element 44 to twist and deform, and the second elastic element 44 can provide a thrust to move the second positioning button 43 to the second locking position. The body 20 includes a second pivot 26 and two second locking members 27. The second pivot 26 is inserted into the middle seat 21 in a direction parallel to the second axis C2. The two second locking members 27 pass through the first side cover 22 and the second side cover 23 respectively from the side opposite to the middle seat 21 of the first side cover 22 and the side opposite to the middle seat 21 of the second side cover 23 and are connected to the second pivot 26 by screws. The second pivot part 321 is sleeved on the second pivot 26. The middle seat 21 is provided with a non-circular second limiting hole 216 on the side adjacent to the first side cover 22.The second pivot 26, adjacent to the first side cover 22, has a second limiting portion 261 with a shape corresponding to the second limiting hole 216 along its radial outer periphery. The second limiting portion 261 is inserted into the second limiting hole 216, preventing the second pivot 26 from rotating relative to the central seat 21. The first tool head 31 and the second tool head 32 are respectively disposed on opposite sides of the body 20. The first pivot portion 311 and the second pivot portion 321 are respectively pivotally disposed at opposite ends of the body 20. The first tool head 31 is provided with a first working part 313 at the end opposite to the first pivot portion 311, and the second tool head 32 is provided with a second working part 323 at the end opposite to the second pivot portion 321. When the first tool head 31 and the second tool head 32 are closed, the first working part 313 is adjacent to the second pivot portion 321, and the second working part 323 is adjacent to the first pivot portion 311. When the first tool head 31 and the second tool head 32 are extended, the first working part 313 extends away from the second pivot portion 321, and the second working part 323 extends away from the first pivot portion 311. The distance from the second fastener 434 to the first pivot 24 forms a first length L1, the distance from the first working part 313 to the first pivot 24 forms a second length L2, the second length L2 is greater than the first length L1, the distance from the first fastener 414 to the second pivot 26 forms a third length L3, and the distance from the second working part 323 to the second pivot 26 forms a fourth length L4, the fourth length L4 is greater than the third length L3. In this embodiment, there are several first locking parts 312. When the first positioning button 41 is in the first locked position, the first buckle 411 is engaged with one of the several first locking parts 312, so that the first tool head 31 is fixed in the closed, 90-degree open, or 180-degree open position. In this embodiment, there are several second locking parts 322. When the second positioning button 43 is in the second locked position, the second buckle 431 is engaged with one of the several second locking parts 322, so that the second tool head 32 is fixed in the closed, 90-degree open, or 180-degree open position. The first tool head 31 has a plurality of first outer peripheral surfaces 314 arranged along the radial outer periphery of the first pivot 24. Each of the plurality of first outer peripheral surfaces 314 is a plane extending along the tangent direction of the first pivot 24. Each of the plurality of first outer peripheral surfaces 314 is located between two adjacent first locking portions 312. The second tool head 32 has a plurality of second outer peripheral surfaces 324 arranged along the radial outer periphery of the second pivot 26. Each of the plurality of second outer peripheral surfaces 324 is a plane extending along the tangent direction of the second pivot 26. Each of the plurality of second outer peripheral surfaces 324 is located between two adjacent second locking portions 322. In this embodiment, there are several first tool heads 31, which are pivotally mounted on the first pivot 24 and arranged side by side with each other along the axial direction of the first pivot 24. In this embodiment, there are several second tool heads 32, which are pivotally mounted on the second pivot 26 and arranged side by side with each other along the axial direction of the second pivot 26. The folding tool 10, through the aforementioned structure, facilitates user operation and provides a more efficient space configuration. The first operating part 412 and the second operating part 432 are located on the side of the main body 20. Regardless of whether the first tool head 31 or the second tool head 32 is unfolded, the unlocking operation can be performed on the adjacent side in the unfolding direction, thereby providing high convenience. The operation of the first positioning button 41 and the second positioning button 43 will not interfere with the first working part 313 and the second working part 323, allowing the main body 20 to be equipped with a tool head that is almost the same length as its own, thereby improving space utilization. Based on the above, the present invention has the following advantages: 1. A folding tool with a locking mechanism according to the present invention, wherein the folding tool includes a body, a tool head assembly and a positioning mechanism, the tool head assembly includes at least one first tool head, one end of the first tool head is provided with a first pivot portion, the first pivot portion is pivotally mounted to the body, the first tool head is provided with at least one first latching portion on the outer periphery of the first pivot portion, the positioning mechanism includes a first positioning button, the first positioning button is rotatably connected to the body between a first locked position and a first released position with a virtual first axis as the center, the first positioning button is provided with a first buckle portion and a first operating portion, when the first positioning button is in the first locked position, the first buckle portion is engaged with the first latching portion and restricts the rotation of the first tool head relative to the body, when the first positioning button is in the first released position, the first buckle portion disengages from the first latching portion and releases the restriction on the rotation of the first tool head relative to the body, the first operating portion protrudes from the body along the first axis axially, the folding tool, through the above structure, is convenient for user operation and provides more efficient space configuration. However, the above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any changes in numerical values ​​or substitutions of equivalent elements, or equivalent changes and modifications made in accordance with the scope of the present invention's patent application, should still fall within the scope of the present invention's patent. 10: Folding tool 20: Body 21: Middle seat 211: First pivot hole 212: First slide groove 213: First limiting hole 214: Second pivot hole 215: Second slide groove 216: Second limiting hole 22: First side cover 23: Second side cover 24: First pivot 241: First limiting part 25: First locking member 26: Second pivot 261: Second limiting part 27: Second locking member 30: Tool head assembly 31: First tool head 311: First pivot part 312: First locking part 313: First working part 314: First outer peripheral surface 32: Second tool head 321: First Second pivot part 322: Second locking part 323: Second working part 324: Second outer peripheral surface 40: Positioning mechanism 41: First positioning button 411: First fastening part 412: First operating part 413: First pin 414: First fastening part 42: First elastic element 421: First winding part 43: Second positioning button 431: Second fastening part 432: Second operating part 433: Second pin 434: Second fastening part 44: Second elastic element 441: Second winding part C1: First shaft C2: Second shaft L1: First length L2: Second length L3: Third length L4: Fourth length Figure 1: A perspective view of the folding tool with locking mechanism of the present invention. Figure 2: An exploded perspective view of the folding tool with locking mechanism of the present invention. Figure 3: A cross-sectional view of the folding tool with locking mechanism of the present invention. Figure 4: A cross-sectional view of the folding tool with locking mechanism of the present invention from another perspective. Figure 5: A cross-sectional view taken along line 5-5 in Figure 4. Figure 6: A cross-sectional view taken along line 6-6 in Figure 4. Figure 7: A diagram showing the movement of the first positioning button of the folding tool with locking mechanism of the present invention to the first release position. Figure 8: A diagram showing the movement of the second positioning button of the folding tool with locking mechanism of the present invention to the second release position. Figure 9: A diagram showing the folding tool with locking mechanism of the present invention in use with the tool head extended at 45 degrees. Figure 10: A diagram showing the folding tool with locking mechanism of the present invention in use with the tool head extended at 90 degrees. 10: Folding tools 20:Ontology 22: First side cover 23: Second side cover 25: First locking element 27: Second locking element 30: Tool Head Set 32: Second tool head 322: Second Card Section 323: Second Working Department 324: Second outer peripheral surface 40: Positioning mechanism 412: First Operations Section 432: Second Operations Section

Claims

1. A folding tool with a locking mechanism includes: a body comprising an integrally formed central base; a tool head assembly including at least one first tool head, one end of which has a first pivot portion pivotally connected to the body, and the first tool head having at least one first locking portion at its outer periphery; and a positioning mechanism including a first positioning button rotatably connected to the body between a first locked position and a first released position about a virtual first axis, the first positioning button having a first latch and a first operating portion, wherein in the first locked position, the first latch engages with the first locking portion and restricts the first tool head from rotating relative to the body, and in the first released position, the first latch disengages from the first locking portion and releases the restriction on the first tool head from rotating relative to the body. The first operating part protrudes from the body along the first axis. The first positioning button includes a first fastener, which is disposed inside the middle seat. The first fastening part is disposed on the first fastener. The middle seat is provided with a first sliding groove on one side along the first axis. The body includes a first side cover and a second side cover. The first side cover and the second side cover are respectively connected to opposite sides of the middle seat along the first axis. The first operating part is disposed on the first fastener, passes through the first sliding groove, and is disposed on the side of the first side cover opposite to the middle seat. The folding tool with a locking mechanism as described in claim 1, wherein the center seat is provided with a first pivot hole on each of the opposite sides along the first axis, the first positioning button includes a first pin, the two ends of the first pin are respectively inserted into the two first pivot holes, and the first fastener is rotatably sleeved on the first pin with the first pin as the center. The folding tool with a locking mechanism as described in claim 2, wherein the positioning mechanism includes a first elastic member, a first winding portion is provided between the two ends of the first elastic member, the first winding portion is wound at least one turn and sleeved on the first pin, one end of the first elastic member is inserted into the middle seat and the other end abuts against the side of the first fastener opposite to the first pivot portion, and when the first positioning button is in the first release position, the first fastener pushes the first elastic member to twist and deform, and the first elastic member can provide a thrust to move the first positioning button to the first locking position. The folding tool with a locking mechanism as described in claim 3, wherein the body includes a first pivot and two first locking members, the first pivot being inserted into the middle seat in a direction parallel to the first axis, the two first locking members passing through the first side cover and the second side cover respectively from the side of the first side cover opposite to the middle seat and the side of the second side cover opposite to the middle seat and being screwed to the first pivot, and the first pivot portion being sleeved on the first pivot. The folding tool with a locking mechanism as described in claim 4, wherein a non-circular first limiting hole is provided on the side of the middle seat adjacent to the first side cover, and a first limiting part with a shape corresponding to the first limiting hole is provided on the outer periphery of the first pivot along the radial direction of the first pivot at one end adjacent to the first side cover, the first limiting part being inserted into the first limiting hole so that the first pivot cannot rotate relative to the middle seat. The folding tool with a locking mechanism as described in claim 5, wherein the tool head assembly includes at least one second tool head, one end of which is provided with a second pivot portion pivotally connected to the body, and at least one second latching portion is provided on the outer periphery of the second tool head. The positioning mechanism includes a second positioning button, which is rotatably connected to the body between a second locked position and a second released position about a virtual second axis. The second positioning button is provided with a second latching portion and a second operating portion. When the second positioning button is in the second locked position, the second latching portion engages with the second latching portion and restricts the second tool head from moving. When the main body rotates, and the second positioning button is in the second release position, the second latch disengages from the second locking part and releases the restriction on the rotation of the second tool head relative to the main body. The second operating part protrudes from the main body along the second axis. The middle seat has a second pivot hole on each of its opposite sides along the second axis. The second positioning button includes a second pin and a second fastener. The two ends of the second pin are respectively inserted into the two second pivot holes. The second fastener is disposed in the middle seat and can be rotatably sleeved on the second pin with the second pin as the center. The second fastener is disposed on the second fastener. The middle seat has a second sliding groove on one side along the second axis. Two operating parts are disposed on the second fastener. The second operating parts pass through the second slide groove and are disposed on the side of the first side cover opposite to the middle seat. The positioning mechanism includes a second elastic member. A second winding portion is disposed between the two ends of the second elastic member. The second winding portion is wound at least once and sleeved on the second pin. One end of the second elastic member is inserted into the middle seat and the other end abuts against the side of the second fastener opposite to the second pivot portion. When the second positioning button is in the second release position, the second fastener pushes the second elastic member to twist and deform. The second elastic member can provide a thrust to move the second positioning button to the second locking position. The body includes a second pivot and two... A second locking member is inserted into the middle seat along a direction parallel to the axial direction of the second axis. The two second locking members pass through the first side cover and the second side cover respectively from the side opposite to the middle seat and the side opposite to the middle seat, and are connected to the second pivot by screws. The second pivot part is sleeved on the second pivot. The middle seat is provided with a non-circular second limiting hole on the side adjacent to the first side cover. The end of the second pivot adjacent to the first side cover is provided with a second limiting part with a shape corresponding to the second limiting hole along the radial outer periphery of the second pivot. The second limiting part is inserted into the second limiting hole, so that the second pivot cannot rotate relative to the middle seat. The folding tool with a locking mechanism as described in claim 6, wherein the first tool head and the second tool head are respectively disposed on opposite sides of the body, the first pivot portion and the second pivot portion are respectively pivotally disposed at opposite ends of the body, the first tool head is provided with a first working portion at the end opposite to the first pivot portion, and the second tool head is provided with a second working portion at the end opposite to the second pivot portion. When the first tool head and the second tool head are closed, the first working portion is adjacent to the second pivot portion, and the second working portion is adjacent to the first pivot portion. When the first tool head and the second tool head are unfolded, the first working portion unfolds away from the second pivot portion, and the second working portion unfolds away from the first pivot portion. The folding tool with a locking mechanism as described in claim 7, wherein the distance from the second fastener to the first pivot forms a first length, the distance from the first working part to the first pivot forms a second length, the second length being greater than the first length, the distance from the first fastener to the second pivot forms a third length, and the distance from the second working part to the second pivot forms a fourth length, the fourth length being greater than the third length. The folding tool with a locking mechanism as described in claim 6, wherein the number of the at least one first latch is several, and when the first positioning button is in the first locked position, the first buckle is engaged with one of the several first latches, thereby fixing the first tool head in a folded, 90-degree unfolded, or 180-degree unfolded position; and the number of the at least one second latch is several, and when the second positioning button is in the second locked position, the second buckle is engaged with one of the several second latches, thereby fixing the second tool head in a folded, 90-degree unfolded, or 180-degree unfolded position. The folding tool with a locking mechanism as described in claim 9, wherein the first tool head is provided with a plurality of first outer peripheral surfaces along the radial outer periphery of the first pivot, the plurality of first outer peripheral surfaces being planes extending along the tangent direction of the first pivot, each of the plurality of first outer peripheral surfaces being located between two adjacent first locking portions, and the second tool head is provided with a plurality of second outer peripheral surfaces along the radial outer periphery of the second pivot, the plurality of second outer peripheral surfaces being planes extending along the tangent direction of the second pivot, each of the plurality of second outer peripheral surfaces being located between two adjacent second locking portions. The folding tool with a locking mechanism as described in claim 6, wherein the number of the at least one first tool head is several, the several first tool heads are respectively pivotally mounted on the first pivot and arranged side by side with each other along the axis of the first pivot, and the number of the at least one second tool head is several, the several second tool heads are respectively pivotally mounted on the second pivot and arranged side by side with each other along the axis of the second pivot.

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