Adaptive self-locking clamp

Abstract

The present invention discloses a self-adaptive self-locking clamp, which comprises a pair of rotating arms, pivotally connected by a lever fulcrum located in the middle or one end of the pair of rotating arms, forming a pair of clamping openings with at least one variable gap for loading, a lever fulcrum and a pair of handles for exerting force. The pair of handles are engaged with each other through a pawl and ratchet mechanism to achieve a directional self-locking function, so that the clamping force exerted on the pair of handles is maintained after the clamping force is removed. The self-locking pawl and ratchet engagement can adapt to the geometric deformation of the pair of rotating arms caused by the clamping force, forming a firm lock, so that the user does not have to maintain the clamping force all the time when operating.

Description

Technical Field

[0001] This invention relates to an adaptive self-locking tool that provides adjustable clamping force, adjustable clamping clamp, and adaptive self-locking function. The invention is suitable for a wide range of applications, such as self-locking clamps, bottle openers, and oil filter wrenches. The invention provides a variable clamping clamp with a rapidly adjustable gap to accommodate a wide range of clamped object sizes, such as different sizes of wood, bottle caps, and oil filters. The invention also provides adjustable clamping force and a self-locking function. The adaptive self-locking mechanism of this invention maintains its self-locking function even under elastic geometric deformation caused by clamping force. Background Technology

[0002] In many applications utilizing clamps, such as bottle openers, oil filter wrenches, and woodworking clamps, the clamp must have the ability to quickly adjust the clamping gap to accommodate a wide range of object sizes, such as different widths of wood, bottle cap diameters, and oil filter diameters. In these applications, the clamp must also provide continuous clamping force during operation, utilizing the resulting friction to secure the clamped object (e.g., woodworking clamps) or to twist it (e.g., bottle openers or oil filter wrenches). These conditions create a need for a clamp with quick clamping gap and force adjustment, along with a self-locking function, to meet the user's requirement of not having to apply clamping force simultaneously during operation. This self-locking function is particularly beneficial for many users, especially those with weak grip strength due to age or illness (such as rheumatism), or those who lack the coordination to apply appropriate clamping force while operating.

[0003] In applications involving woodworking clamps with a central lever fulcrum, load and force distributed on either side of the fulcrum, and a scissor-like connection, commercial tools utilizing a circumferential pawl and ratchet self-locking mechanism similar to that used in this invention already exist. However, such tools suffer from a major problem: the elastic geometric deformation of the tool itself under stress leads to instability in the pawl and ratchet engagement structure. This is because the ideal circumferential motion path cannot be maintained consistently under these conditions, causing the self-locking mechanism components to either jam or disengage. As for applications like bottle openers or oil filter wrenches, because the lever fulcrum is at one end and the load and force are distributed at the other, this configuration exacerbates the tool's deformation problem. Therefore, tools using a circumferential pawl and ratchet self-locking mechanism do not currently exist. Users generally can only use bottle openers that are open at one end and lack a self-locking function, or strap-wrap or pliers-type oil filter wrenches.

[0004] Therefore, there is a strong demand in daily life for the quick clamping gap and clamping force adjustment function of this invention, as well as the adaptive self-locking function that can maintain the clamping gap and clamping force even when deformation occurs due to clamping force. Summary of the Invention

[0005] The main objective of this invention is to provide an adaptive self-locking mechanism that can provide rapid adjustment of clamping gap and clamping force, as well as an adaptive self-locking function.

[0006] Another object of the present invention is to provide an adaptive self-locking mechanism integrating a pawl and a ratchet for applications requiring high clamping force.

[0007] Another object of the present invention is to provide an adaptive self-locking mechanism with independent pawls and ratchet for use in applications requiring extremely high clamping forces, thereby distributing the load evenly across multiple pawl and ratchet teeth.

[0008] To achieve the above objectives, the present invention may achieve these objectives through the preferred embodiments shown in the accompanying drawings. It should be noted that the drawings are merely illustrative, and the present invention can achieve the above objectives through various other embodiments. Attached Figure Description

[0009] Other objects, features, and advantages of the present invention will be fully understood and appreciated in conjunction with the accompanying drawings. Among them, preferred embodiments are as follows:

[0010] Figure 1 This is a perspective view of a preferred embodiment of an adaptive self-locking clamp used as a self-locking clamp (hereinafter referred to as "self-locking clamp").

[0011] Figure 2 yes Figure 1 A reverse perspective view of the self-locking clip.

[0012] Figure 3 yes Figure 1 An exploded view of the self-locking clamp.

[0013] Figure 4 It is a group Figure 1 Orthographic and sectional views of the self-locking clamp.

[0014] Figure 5 It is possible Figure 1 A perspective view of the first rotating arm used on the self-locking clamp.

[0015] Figure 6 It is possible Figure 1 A perspective view of the second rotating arm used on the self-locking clamp.

[0016] Figure 7 It is possible Figure 1 A perspective view of an integrated ratchet trigger used on a self-locking clip.

[0017] Figure 8 It is possible Figure 1 A perspective view of the curved ratchet used on the self-locking clamp.

[0018] Figure 9 yes Figure 1 A cross-sectional view of a self-locking clamp is provided to illustrate the self-locking mechanism in an ideal state without geometric deformation when the clamp is attached to a piece of wood.

[0019] Figure 10 yes Figure 1 A cross-sectional view of a self-locking clamp is provided to illustrate the state of the self-locking mechanism when the clamp is attached to a piece of wood under actual conditions of geometric deformation.

[0020] Figure 11 This is a perspective view of a preferred embodiment of an adaptive self-locking clamp used as a bottle opener (hereinafter referred to as "bottle opener").

[0021] Figure 12 yes Figure 11 A reverse perspective view of a bottle opener.

[0022] Figure 13 yes Figure 11 An exploded view of a bottle opener.

[0023] Figure 14 It is a group Figure 11 Orthographic and sectional views of the bottle opener.

[0024] Figure 15 It is possible Figure 11 A perspective view of the first rotating arm used on a bottle opener.

[0025] Figure 16 It is possible Figure 11 A perspective view of the second rotating arm used on the bottle opener.

[0026] Figure 17 It is possible Figure 11 A perspective view of the integrated ratchet trigger used on the bottle opener.

[0027] Figure 18 It is possible Figure 11 A perspective view of the curved ratchet used on a bottle opener.

[0028] Figure 19 It is used to explain how to use Figure 11 A bottle opener is used to operate the perspective view of the bottle cap.

[0029] Figure 20 yes Figure 19 A cross-sectional view of a bottle opener is shown to illustrate the self-locking mechanism in an ideal state without geometric deformation when the bottle opener is clamped onto the bottle cap.

[0030] Figure 21 yes Figure 19A cross-sectional view of a bottle opener is provided to illustrate the self-locking mechanism in a real-world state with geometric deformation when the bottle opener is clamped onto the bottle cap.

[0031] Figure 22 This is a perspective view of a preferred embodiment of an adaptive self-locking clamp used as an oil filter wrench (hereinafter referred to as "oil filter wrench").

[0032] Figure 23 yes Figure 22 A perspective view of the oil filter wrench from the opposite direction.

[0033] Figure 24 yes Figure 22 An exploded view of the oil filter wrench.

[0034] Figure 25 It is a group Figure 22 Orthographic and sectional views of the oil filter wrench.

[0035] Figure 26 It is possible Figure 22 A perspective view of the first rotating arm used on the oil filter wrench.

[0036] Figure 27 It is possible Figure 22 A perspective view of the second rotating arm used on the oil filter wrench.

[0037] Figure 28 It is possible Figure 22 A perspective view of the linkage trigger used on the oil filter wrench.

[0038] Figure 29 It is possible Figure 22 A perspective view of the ratchet pawl used on an oil filter wrench.

[0039] Figure 30 It is possible Figure 22 A perspective view of the curved ratchet used on the oil filter wrench.

[0040] Figure 31 It is used to explain how to use Figure 22 A perspective view of using a filter wrench to tighten the filter.

[0041] Figure 32 It is used to explain how to use Figure 22 Use the oil filter wrench to unscrew the oil filter perspective view.

[0042] Figure 33 yes Figure 32 This is a composite view combining a sectional view of the oil filter wrench and a projected view of the oil filter, used to illustrate the self-locking mechanism in an ideal state without geometric deformation when the oil filter wrench is used to unscrew the oil filter.

[0043] Figure 34 yes Figure 32 The combined sectional view of the filter wrench and the projected view of the filter are used to illustrate the situation of the self-locking mechanism in a real state with geometric deformation when this filter wrench is used to unscrew the filter. Detailed Implementation

[0044] The following detailed description describes several preferred embodiments of the invention to illustrate methods of carrying out the invention. While these embodiments relate only to self-locking clamps, bottle openers, and oil filter wrenches, the invention can also be implemented in various other applications that benefit from the use of such adaptive self-locking clamps to provide continuous clamping force, such as lemon juicers and many other applications. In the following description, various preferred embodiments will be shown in detail to illustrate the fundamental principles of the invention. Therefore, it should be noted that the following description is merely a few examples of numerous possible embodiments in many applications, and the structural and functional details described are only used as examples to illustrate the working principle of the invention and do not constitute a limitation of the invention.

[0045] In all descriptions and figures, the same labeling characters are used to identify the same parts. Terms such as "upward," "downward," "upper," "lower," "top," "bottom," "vertical," "horizontal," "front," "rear," etc., are based on their position in the figures. Terms such as "first," "second," "third," "fourth," "last," "one," "another," "one end," "the other end," etc., are used to describe the relative spatial position of the various parts, or their position in the order of description or display. In figures with a set of orthographic and sectional views, some labeling characters may be omitted to avoid reducing the readability of the views. Nevertheless, all parts will be clearly labeled in other views.

[0046] Figure 1 and Figure 2 A preferred embodiment of an adaptive self-locking clamp is shown as an application of a self-locking clamp.

[0047] Figure 3 and Figure 4 This demonstrates how the self-locking clamp is constructed. The self-locking clamp may include a first rotating arm 1, a second rotating arm 2, an integrated ratchet trigger 3, an arc-shaped ratchet 4, a compression spring 5, a torsion spring 6, a pair of clamping heads 7, and multiple pins 8 and 9.

[0048] First spiral arm 1 ( Figure 3 , 45) It may have a longitudinal body resembling an elongated "S" shape. This body consists of a clamping portion 1a at one end, a pivot portion 1b in the middle, and a handle portion 1c at the other end. Longitudinal edges 1l and 1m define the thickness of the body. At the end of the clamping portion 1a, there is a pair of separate parts relative to the central plane AB (…). Figure 4 Overall, the pivots 1d and 1e are symmetrical and parallel. On these pivots 1d and 1e are points relative to the central plane AB. Figure 4 A generally vertical through-hole 1f passes through the pivot, which is used to receive the first pin 9 to form a pivotal connection with a clamp head 7. The pivot portion 1b may include a coupling surface 1g recessed from the longitudinal edge 1l. This coupling surface 1g will be used to couple the corresponding coupling surface on the second rotating arm 2 to form a scissor-like connection. The pivot portion 1b may also be provided with a "V"-shaped recess 1h for receiving the torsion spring 6. The recess 1h also has a feature relative to the central plane AB. Figure 4 A generally vertical through-hole 1i passes through it. This through-hole 1i is coaxially aligned with the corresponding through-hole on the second rotating arm 2 and forms a pivotal link with the torsion spring 6 via a receiving pin 8, thus jointly forming an elastic pivot and lever fulcrum. The handle portion 1c may include a recess 1j tailored to the curved ratchet 4 to receive the anchor end of the curved ratchet 4 and a section passing through the recess 1j relative to the central plane AB. Figure 4 The overall vertical through hole 1k is used to receive the second pin 9 and fix the arc-shaped ratchet 4.

[0049] Second spiral arm 2 ( Figure 3 , 4 6) It may have a body similar to the first rotating arm 1. This body consists of a clamping portion 2a at one end, a pivot portion 2b in the middle, and a handle portion 2c at the other end. Longitudinal edges 2p and 2q define the thickness of this body. At the end of the clamping portion 2a, there is a pair of separate parts relative to the central plane AB (…). Figure 4 Generally symmetrical and parallel pivot seats 2d and 2e. On these pivot seats 2d and 2e, there are points relative to the central plane AB. Figure 4 A generally vertical through-hole 2f passes through the pivot, which will be used to form a pivotal connection with another clamp head 7 by receiving a third pin 9. The pivot portion 2b may include a coupling surface 2g recessed from the longitudinal edge 2p. This coupling surface 2g will be used to couple the corresponding coupling surface 1g on the first rotating arm 1 to form a so-called scissor link. The pivot portion 2b may also have a "V"-shaped recess 2h to mate with the recess 1h to receive the torsion spring 6. The recess 2h also has a recess relative to the central plane AB (…). Figure 4A generally vertical through-hole 2i passes through. This through-hole 2i is coaxially aligned with the corresponding through-hole 1i on the first rotating arm 1 and pivotally connected to the torsion spring 6 via a receiving pin 8, thus forming a so-called elastic pivot and lever fulcrum. The handle portion 2c may include a pair of laterally projecting pivot seats 2k and 2j adjacent to the pivot portion 2b and a through-hole 2k and 2j relative to the central plane AB. Figure 4 A generally vertical through-slot 2l pivotally and slidably receives the fourth pin 9, a transverse channel 2m and a transverse cylindrical recess 2o securely receive one end of the compression spring 5. The transverse channel 2m includes an arc-shaped bottom surface 2n with a diameter R1 centered on axis A1. Figure 4 ) to slide to receive the curved ratchet 4.

[0050] Integrated ratchet trigger 3 ( Figure 3 , 4 7) It may have an arc-shaped longitudinal body resembling a trigger. This body consists of a pivot portion 3a, an integrated ratchet portion 3b, and a lever arm portion 3c. Longitudinal edges 3j and 3k define the thickness of this body. The pivot portion 3a includes a pivot seat 3d that retracts from both sides of the longitudinal edges 3j and 3k, and a lever arm that passes through the pivot seat 3d and is relative to the central plane AB. Figure 4 A generally vertical through-hole 3e. The pivot portion 3a is fitted into and thus custom-designed within the space between pivot seats 2k and 2j. The through-hole 3e aligns with the through-slot 2l and receives the fourth pin 9, thus allowing the integrated pawl trigger 3 to pivot according to the axis of the fourth pin 9, while the fourth pin 9 can slide within the through-slot 2l, thereby forming a variable pivot. This pin and through-slot travel limiting mechanism allows the integrated pawl trigger 3 to automatically adapt to the displacement of the arcuate ratchet 4 caused by the geometric deformation of the first and second rotating arms 1 and 2 due to clamping forces through rising, falling, and rotating, thereby achieving an adaptive self-locking function. The integrated pawl portion 3b may further include a transverse channel 3f to slidably receive the arcuate ratchet 4, thereby forming an integrated pawl tooth 3g at one end near the lever arm portion 3c, while forming on its opposite side parallel to the edge of the pawl tooth and relative to the central plane AB. Figure 4 The clamping edge 3h is generally vertical. The lever arm 3c may include a transverse cylindrical protrusion 3i to be securely incorporated into the other end of the compression spring 5.

[0051] In this preferred embodiment, only one integrated ratchet tooth 3g is integrated onto the integrated ratchet trigger 3. In other embodiments, multiple ratchet teeth may be integrated onto or assembled onto the integrated ratchet trigger.

[0052] Curved ratchet 4 ( Figure 3 , 48) There may be a longitudinal body with a similar arc shape. This body includes an anchor end 4a and a ratchet portion 4b. Longitudinal edges 4f and 4g define the thickness of this body. The anchor end 4a includes portions relative to the central plane AB ( Figure 4 The generally vertical through-hole 4c, along with coaxially aligned through-holes 1k and 4c and a second pin 9, is custom-fitted into the recess 1j, thereby anchoring the arcuate ratchet 4 to the first rotating arm 1. This ratchet portion 4b may have an arcuate side surface 4d with a radius of R2. After assembly, the center of this radius R2 will fall on the axis A1. The ratchet portion 4b may also include an arcuate integrated ratchet tooth side surface 4e with a radius of R1. After assembly, the center of this radius R1 will fall on the axis A1. The ratchet portion 4b is custom-fitted to allow smooth sliding within channels 3f and 2m.

[0053] In the assembled state, the pivot parts 1b and 2b, together with the torsion spring 6 and pin 8, form a so-called scissor-like elastic pivot and lever fulcrum resting on the axis A1. The clamping parts 1a and 2a, paired, form a pair of clamping jaws with variable clearance to clamp onto the workpiece. The handle parts 1c and 2c, paired, form a pair of handles to apply clamping force. The torsion spring 6 applies a spring force to the pair of handles to separate them. The integrated pawl trigger 3 is pivotally connected to the through slot 2l of the second rotating arm 2 and pivots at the bottom of the through slot 2l. The arcuate ratchet 4 is slidably received into the integrated pawl trigger 3 and the second rotating arm 2; at the same time, the compression spring 5 clamped between the integrated pawl trigger 3 and the second rotating arm 2 applies a spring force, causing the integrated pawl trigger 3 to rotate away from the second rotating arm 2 until the clamping edge 3h clamps onto the arcuate side surface 4d on one side, while the integrated pawl tooth 3g fully engages with the integrated ratchet tooth side surface 4e on the other side, thereby forming a self-locking mechanism of the pawl and ratchet. When the user applies clamping force through the handles, the arc-shaped ratchet 4 causes the integrated pawl trigger 3 to rotate closer to the second rotating arm 2, disengaging the pawl and ratchet. This causes the arc-shaped ratchet 4 to continue sliding forward into the channel 2m, and the gap between the clamping jaws decreases. When the clamping force disappears, the compression spring 5 applies elastic force, causing the integrated pawl trigger 3 to rotate away from the second rotating arm 2, and forcing the clamping edge 3h to clamp onto the arc-shaped side surface 4d on one side. Simultaneously, the integrated pawl tooth 3g fully engages with the integrated ratchet tooth side surface 4e on the other side, thus preventing the arc-shaped ratchet 4 from sliding backward. At this time, the self-locking clamp self-locks to a fixed position. When the integrated pawl trigger 3 is pulled closer to the second rotating arm 2, the clamping edge 3h and the integrated pawl tooth 3g are lifted away from the arc-shaped side surface 4d and the integrated ratchet tooth side surface 4e, causing the pawl and ratchet to disengage. The torsion spring 6 then applies elastic force to separate the handles until the clamping jaws reach their maximum gap.

[0054] Figure 9 and Figure 10This further clarifies how the adaptive self-locking mechanism works when the self-locking clamp is clamped onto a piece of wood 40, even when the user no longer applies clamping force. Figure 9 This demonstrates the ideal state where there is no geometric deformation in the first spiral arm 1 and the second spiral arm 2, as shown in the example. Figure 4 The cross-sectional view obtained from the central plane AB. In this state, the arc-shaped ratchet 4 slides on the arc-shaped bottom surface 2n with rotational motion relative to the axis A1, while the integrated pawl trigger 3 axially moves at a bottom position in the through slot 2l. Figure 10 This demonstrates the actual state of elastic geometric deformation of the material caused by clamping force in the first spiral arm 1 and the second spiral arm 2, as shown in the example. Figure 4 The cross-sectional view obtained from the central plane AB. In this state, the handle portions 1c and 2c are bent inward, causing the arc-shaped ratchet 4 to lift away from the arc-shaped bottom surface 2n, and pushing the integrated pawl trigger 3 to another position in the through slot 2l, automatically adapting to the displacement of the arc-shaped ratchet 4 while maintaining the engagement of the pawl and ratchet. Therefore, most of the energy of the originally applied clamping force is stored in the form of elastic deformation of the first rotating arm 1 and the second rotating arm 2, thereby maintaining a strong clamping force.

[0055] Figure 11 and Figure 12 A preferred embodiment of an adaptive self-locking clamp for bottle opener applications is shown.

[0056] Figure 13 and Figure 14 This demonstrates how the bottle opener is constructed. The bottle opener may include a first rotating arm 11, a second rotating arm 12, an integrated ratchet trigger 13, an arc-shaped ratchet 14, a compression spring 15, a pair of first-type clamping pads 16, a pair of second-type clamping pads 17, and multiple pins 18 and 19.

[0057] First spiral arm 11 ( Figure 13 14, 15) may have an arc-shaped longitudinal body. This body consists of a pivot portion 11a at one end, a double-clamp portion 11b in the middle, and a handle portion 11c at the other end. Longitudinal edges 11l and 11m define the thickness of the body. At the end of the clamp portion 11a are a pair of separate pivot seats 11d and 11e, and a [missing information - likely a specific feature or feature] passing through these pivot seats 11d and 11e and relative to the central plane CD. Figure 14A generally vertical through-hole 11f. The pair of pivot seats 11d and 11e will mate with corresponding mating pivot seats on the second rotating arm 12 to form a first pivot and lever fulcrum, and are custom-designed accordingly. The through-hole 11f will form a pivotal connection via receiving pin 18. The double-clamp portion 11b may include a first double-arc side 11g, a laterally projecting double-arc reinforcing ridge 11i, and a second double-arc side 11h stacked sequentially in the thickness direction. The first double-arc side 11g and the second double-arc side 11h are paired with corresponding double-arc side ribs on the second rotating arm 12 to form a pair of clamps with multiple variable gaps to cover major standard or non-standard bottle cap sizes, thus becoming a universal bottle opener. The double-arc reinforcing ridge 11i is used to strengthen the first rotating arm 11, while also forming a support surface for the top of the bottle cap, thereby enhancing the friction and operational stability between the bottle cap and the bottle opener. The double-arc reinforcing ridge 11i can also be coated with a high-friction coefficient material, such as rubber, to further increase friction and operational stability. The handle portion 11c may include a recess 11j tailored to the curved ratchet 14 to receive the anchor end of the curved ratchet 14, and a portion passing through the recess 11j and relative to the central plane CD. Figure 14 The overall vertical through hole 11k is used to receive the first pin 19 and secure the arc-shaped ratchet 14.

[0058] Second spiral arm 12 ( Figure 13 , 14 16) It may have a body similar to the first rotating arm 11. This body consists of a pivot portion 12a at one end, a double-clamp portion 12b in the middle, and a handle portion 12c at the other end. Longitudinal edges 12o and 12p define the thickness of this body. At the end of the pivot portion 12a are a pair of separate pivot seats 12d and 12e, and a [missing information - likely a typo, should be inserted here] passing through these pivot seats 12d and 12e and relative to the central plane CD. Figure 14 A generally vertical through-hole 12f. The pair of pivot seats 12d and 12e, and corresponding mating pivot seats 11d and 11e on the first rotating arm 11, form a so-called first pivot and lever fulcrum, and are custom-designed accordingly. The through-hole 12f is coaxially aligned with the through-hole 11f and forms a pivotal connection via a receiving pin 18. The double-clamp portion 12b may have the exact same structure and function as the corresponding double-clamp portion 11b, thereby including a first double-arc side 12g, a laterally projecting double-arc reinforcing ridge 12i, and a second double-arc side 12h stacked sequentially in the thickness direction. The handle portion 12c may include a laterally projecting pivot seat 12j adjacent to the double-clamp portion 12b and recessed on both sides from the longitudinal edges 12o and 12p, passing through the pivot seat 12j and relative to the central plane CD. Figure 14A generally vertical longitudinal slot 12k pivotally and slidably receives the second pin 19, a transverse channel 12l adjacent to the pivot seat 12j slidably receives the arcuate ratchet 14, and a transverse cylindrical recess 12h securely receives one end of the compression spring 15. The transverse channel 12l includes a threshold 12m at the entrance. Figure 14 It serves as the base for the curved ratchet 14, while preventing the curved ratchet 14 from sliding out of the channel 12l.

[0059] Integrated ratchet trigger 13 ( Figure 13 , 14 17) It may have a curved longitudinal body resembling a trigger shape. This body consists of a pivot portion 13a and an integrated ratchet lever arm portion 13b. Longitudinal edges 13h and 13i define the thickness of this body. The pivot portion 13a includes a pair of arms extending from the integrated ratchet lever arm portion 13b along the longitudinal edges 13h and 13i and relative to the central plane CD. Figure 14 The forks 13c and 13d are generally symmetrical, and the forks 13c and 13d pass through their ends relative to the central plane CD. Figure 14 The integrated pawl trigger 13 comprises a generally vertical first through-hole 13e and a second through-hole 13f that passes through the middle of the pair of forks 13c and 13d and is generally parallel to the first through-hole 13e. The pair of forks 13c and 13d mate with a pivot seat 12j and, together with the aligned first through-hole 13e and through-slot 12k, receive a second pin 19, thus forming a variable pivot. Therefore, the integrated pawl trigger 13 can pivot according to the axis of the second pin 19, while the second pin 19 can slide in the through-slot 12k. The second through-hole 13f will securely receive a third pin 19 to form a clamping edge and a channel for receiving an arcuate ratchet 14. This pin and through-slot travel limiting mechanism allows the integrated pawl trigger 13 to automatically adapt to the displacement of the arcuate ratchet 14 caused by the geometric deformation of the first and second rotating arms 11 and 12 due to clamping force, thereby achieving an adaptive self-locking function. The integrated ratchet lever arm 13b may further include an integrated ratchet tooth 13g adjacent to and sandwiched between the pair of fork arms 13c and 13d, and a transverse cylindrical protrusion 13j in the middle to be fixedly incorporated into the other end of the compression spring 15. The space enclosed by the pair of fork arms 13c and 13d, the third pin 19, and the integrated ratchet tooth 13g forms a channel that can slidably receive the arcuate ratchet 14.

[0060] In this preferred embodiment, only one integrated ratchet tooth 13g is integrated onto the integrated ratchet trigger 13. In other embodiments, multiple ratchet teeth may be integrated onto or assembled onto the integrated ratchet trigger.

[0061] Curved ratchet 14 ( Figure 13, 14 18) may have a longitudinal body resembling an arc. This body includes an anchor end 14a and a ratchet portion 14b. Longitudinal edges 14h and 14g define the thickness of this body. The anchor end 14a includes portions relative to the central plane CD ( Figure 14 A generally vertical through-hole 14c, and a coaxially aligned through-hole 11k, and a first pin 19 are custom-fitted into a recess 11j, thereby anchoring the arcuate ratchet 14 to the first rotating arm 11. The ratchet portion 14b may include an arcuate side 14d with a radius of R4. After assembly, the center of this radius R4 will fall on the axis A2. The ratchet portion 14b may also include an arcuate integrated ratchet tooth side 14e with a radius of R3. After assembly, the center of this radius R3 will fall on the axis A2. The ratchet portion 14b may also include a laterally projecting stop ridge 14f at the end, which engages with a sill 12m to prevent the arcuate ratchet 14 from sliding out of the channel 12l. The ratchet portion 14b is designed to slide smoothly in the channel 12l and the channel enclosed by the forks 13c and 13d, the third pin 19, and the integrated pawl teeth 13g.

[0062] The first type of clamping pad 16 and the second type of clamping pad 17 may be manufactured using a high-friction and elastic material (such as rubber) and fused or bonded to the first double-arc side 11g and the second double-arc side 11h of the first rotating arm 11, and to the first double-arc side 12g and the second double-arc side 12h of the second rotating arm 12, by appropriate methods. These clamping pads are used to reduce workpiece deformation and enhance torsional friction.

[0063] In the assembled state, the pivot portions 11a and 12a, together with the pin 18, form a so-called first pivot and lever fulcrum resting on the axis A2. The double-clamp portions 11b and 12b, paired, form a pair of double clamps with multiple variable gaps to clamp onto the workpiece. The handle portions 11c and 12c, paired, form a pair of handles to apply clamping force. The integrated ratchet trigger 13 is pivotally connected to the through slot 12k of the second rotating arm 12 and pivots at the bottom of the through slot 12k. The arc-shaped ratchet 14 is anchored to the first rotating arm 11 via the anchor end 14a, while its ratchet portion 14b is slidably received into the channel 12l between the third pin 19 and the integrated pawl tooth 13g, and sits on the sill 12m. Simultaneously, the compression spring 15, clamped between the integrated pawl trigger 13 and the second rotating arm 12, applies elastic force, causing the integrated pawl trigger 13 to rotate away from the second rotating arm 12 until the third pin 19 clamps onto the arc-shaped side surface 14d on one side, while the integrated pawl tooth 13g fully engages with the integrated ratchet tooth side surface 14e on the other side, thus forming a self-locking mechanism for the pawl and ratchet. When the user applies clamping force through the handle, the arc-shaped ratchet 14 causes the integrated pawl trigger 13 to rotate closer to the second rotating arm 12 to disengage the pawl and ratchet, causing the arc-shaped ratchet 14 to continue sliding forward into the channel 12l, and reducing the gap between the clamping jaws. When the clamping force disappears, the compression spring 15 applies elastic force, causing the integrated pawl trigger 13 to rotate away from the second rotating arm 12, and forcing the third pin 19 to clamp onto the arcuate side 14d on one side, while the integrated pawl tooth 13g fully engages with the integrated ratchet tooth side 14e on the other side, thereby preventing the arcuate ratchet 14 from slipping backward. At this point, the bottle opener self-locks to a fixed position. When the integrated pawl trigger 13 is pulled closer to the second rotating arm 12, the third pin 19 and the integrated pawl tooth 13g are lifted away from the arcuate side 14d and the integrated ratchet tooth side 14e, causing the pawl and ratchet to disengage, thereby separating the two handles.

[0064] Figure 19 This demonstrates how the bottle opener can be used to unscrew bottle cap 50 (the bottle itself is not shown). The user can clamp the cap 50 between the pair of double clamps and then apply clamping force to the pair of handles. This clamping force reduces the gap between the clamps, causing the edge of the cap to contact the first type of clamp pad 16 or the second type of clamp pad 17, while the top of the cap contacts one side of the double-arc reinforcing ridges 11i and 12i. The user can further apply clamping force to deform the corresponding elastic clamp pads and the first and second rotating arms 11 and 12, thereby creating a strong clamping force on the cap. The user can then use the resulting friction to find a suitable position on the first and second rotating arms 11 and 12 to unscrew the cap without further applying clamping force.

[0065] Figure 20 and Figure 21Further clarification in the above Figure 19 How does the adaptive self-locking mechanism work in the bottle opening example? Figure 20 This demonstrates the ideal state where the first spiral arm 11 and the second spiral arm 12 have no geometric deformation, as shown in the example. Figure 14 The central plane CD obtained about Figure 19 A cross-sectional view. In this state, the arcuate ratchet 14 slides on the threshold 12m with a rotational motion relative to the axis A2, while the integrated pawl trigger 13 axially moves at the bottom position in the through slot 12k. Figure 21 This demonstrates the actual state of elastic geometric deformation of the material caused by clamping force in the first spiral arm 11 and the second spiral arm 12, as shown in the example. Figure 14 The central plane CD obtained about Figure 19 A cross-sectional view. In this state, the handle portions 11c and 12c bend inward, causing the arcuate ratchet 14 to lift away from the threshold 12m and push the integrated pawl trigger 13 to another position in the through slot 12k, automatically adapting to the displacement of the arcuate ratchet 14 caused by the geometric deformation of the first rotating arm 11 and the second rotating arm 12, while maintaining the engagement of the pawl and the ratchet. Therefore, most of the energy of the originally applied clamping force is stored in the form of elastic deformation of the first rotating arm 11 and the second rotating arm 12, and elastic deformation of the first type of clamping pad 16 or the second type of clamping pad 17, thereby maintaining a strong clamping force.

[0066] Figure 22 and Figure 23 A preferred embodiment of an adaptive self-locking clamp for use as an oil filter wrench is shown.

[0067] Figure 24 and Figure 25 This demonstrates how the oil filter wrench is constructed. The oil filter wrench may include a first rotating arm 21, a second rotating arm 22, a linkage trigger 23, a pawl 24, an arc ratchet 25, a compression spring 26, a pair of clamping pads 27, and multiple pins 28, 29, and 30.

[0068] First spiral arm 21 ( Figure 24 , 25 26) There may be an arc-shaped longitudinal body. This body consists of a pivot portion 21a at one end, a clamping portion 21b in the middle, and a handle portion 21c at the other end. Longitudinal edges 21k and 21l define the thickness of the body. At the end of the clamping portion 21a are a pair of separate pivot seats 21d and 21e, and a [missing information - likely a typo, should be EF] passing through these pivot seats 21d and 21e and relative to the central plane EF. Figure 25A generally vertical through-hole 21f. The pair of pivot seats 21d and 21e will mate with corresponding mating pivot seats on the second rotating arm 22 to form a first pivot and lever fulcrum, and are custom-designed accordingly. The through-hole 21f will form a pivotal connection via receiving pin 28. The clamping portion 21b may include an arcuate side 21g, with laterally projecting ridge-like jaw arcs 21h stacked sequentially in the thickness direction. The arcuate side 21g and the jaw arc 21h mate with the corresponding arcuate side and jaw arc on the second rotating arm 22, forming a variable elastic clamping gap and a variable rigid clamping gap to cover a range of commonly used filter sizes. The arcuate side 21g and the high-friction and elastic clamping pad 27 are fused or bonded together by appropriate methods. After hand-tightening the filter, the user can place the filter in this elastic clamping gap section to tighten the filter for the last quarter turn without damaging the filter housing. The jaw arc 21h is used to clamp the filter housing. Users can use this section, along with the pair of clamp pads 27, to enhance the torque of the loosening filter. The handle portion 21c may include a recess 21i tailored to the curved ratchet 25 to receive the anchor end of the curved ratchet 25 and a portion passing through the recess 21i relative to the central plane EF. Figure 25 The overall vertical through hole 21j is used to receive the first pin 29 and fix the arc-shaped ratchet 25.

[0069] Second spiral arm 22 ( Figure 24 , 25 27) It may have a body similar to the first rotating arm 21. This body consists of a pivot portion 22a at one end, a clamping portion 22b in the middle, and a handle portion 22c at the other end. Longitudinal edges 22o and 22p define the thickness of the body. At the end of the pivot portion 22a are a pair of separate pivot seats 22d and 22e, and a [missing information - likely a typo, should be inserted here] passing through the pair of pivot seats 22d and 22e and relative to the central plane EF. Figure 25 A generally vertical through-hole 22f. The pair of pivot seats 22d and 22e, along with corresponding mating pivot seats 21d and 21e on the first rotating arm 21, form a so-called first pivot and lever fulcrum, and are custom-designed accordingly. The through-hole 22f is coaxially aligned with the through-hole 21f, forming a pivotal connection via a receiving pin 28. The clamp portion 22b may have the exact same structure and function as the corresponding clamp portion 21b, thereby including arcuate sides 22g and laterally projecting ridged jaw arcs 22h stacked sequentially in the thickness direction. The handle portion 22c may include a pair of separate pivot seats 22i and 22j adjacent to the clamp portion 22b, extending laterally from the longitudinal edges 22o and 22p and bridged in the clamp portion 22b, passing through the pair of pivot seats 22i and 22j and relative to the central plane EF. Figure 25A generally vertical through-hole 22k pivotally receives a second pin 29; a transverse channel 22l extends from the space between the pair of pivot seats 22i and 22j and passes through the handle portion 22c to slidably receive an arcuate ratchet 25; and a transverse cylindrical recess 22n securely receives one end of a compression spring 26. The transverse channel 22l includes a threshold 22m at the entrance. Figure 25 It serves as the base for the curved ratchet 25, while preventing the curved ratchet 25 from sliding out of the channel 22l.

[0070] Linkage trigger 23 ( Figure 24 , 25 28) may have a longitudinal body resembling a trigger shape. This body consists of a pivot portion 23a and a lever arm portion 23b. Longitudinal edges 23k and 23l define the thickness of this body. The pivot portion 23a includes a pair of sides extending laterally from the lever arm portion 23b, recessed from the longitudinal edges 23k and 23l, and relative to the central plane EF. Figure 25 The fork arms 23c and 23d are generally symmetrical; the bridging portion 23e bridges the pair of fork arms 23c and 23d in the thickness direction at the top to strengthen the linkage trigger 23; the end of the lever arm 23b passes through the bridging portion 23e and is relative to the central plane EF. Figure 25 A generally vertical first through-hole 23f forms a pivot seat for pivotal connection with corresponding pivot seats 22i and 22j via a second pin 29, thus forming a second pivot; a generally parallel second through-hole 23g passing through the pair of forks 23c and 23d in the middle, forming a pair of pivot seats for pivotal connection with pawl 24 via a first pin 30, thus forming a third pivot; and a generally parallel third through-hole 23h passing through the pair of forks 23c and 23d at the other end, forming a pair of pivot seats to securely receive the second pin 30, thus forming a rotation limit. The lever arm 23b may further include a transverse cut extending from one end of the adjacent pivot 23a and sandwiched in the space between the pair of forks 23c and 23d, thereby forming a transverse channel 23i to slidably receive the arcuate ratchet 25, and a transverse cylindrical protrusion 23j in the middle to be fixedly incorporated into the other end of the compression spring 26.

[0071] 24 thorns Figure 24 , 25 29) may have a longitudinal body. This body includes a pawl head 24a and a rotation limiting portion 24b. Longitudinal edges 24i and 24j define the thickness of this body. The pawl head 24a may include an integrated pawl tooth side 24c composed of multiple pawl teeth, and a portion extending through the pawl head 24a and relative to the central plane EF. Figure 25A generally vertical first through-hole 24d, thereby forming a pivotal connection with the linkage trigger 23 on a third pivot via a coaxially aligned through-hole 23g and a first pin 30. The rotation limit portion 24b may include portions passing through it and relative to the central plane EF. Figure 25 The generally vertical arcuate slot 24f pivotally and slidably receives the second pin 30 already fixed in the through hole 23h. This arcuate slot 24f may further include a first arcuate side 24g and a second arcuate side 24h concentric with respect to the axis A4. Figure 25 Thus, the pawl 24 can rotate around the axis A4 of the third pivot, and its rotation range is limited within the arc-shaped through groove 24f by the displacement limiting mechanism formed by the second pin 30 and the arc-shaped through groove 24f. Because the pawl 24 can rotate around the third pivot, and the third pivot can rotate around the second pivot, the third pivot is a variable pivot. This variable pivot allows the pawl and ratchet self-locking mechanism to automatically adapt to the displacement of the arc-shaped ratchet 25 caused by the geometric deformation of the first and second rotating arms 21 and 22 due to the clamping force, thereby achieving an adaptive self-locking function.

[0072] Curved ratchet 25 ( Figure 24 (25, 30) may have a longitudinal body resembling an arc. This body includes an anchor end 25a and a ratchet portion 25b. Longitudinal edges 25h and 25g define the thickness of this body. The anchor end 25a includes portions relative to the central plane EF ( Figure 25 The generally vertical through-hole 25c, along with the coaxially aligned through-hole 21j and the first pin 29, is custom-fitted into the recess 21i, thereby anchoring the arcuate ratchet 25 to the first rotating arm 21. The ratchet portion 25b may include an arcuate side 25d with a radius of R5. After assembly, the center of this radius R5 will fall on the shaft A3. The ratchet portion 25b may also include an arcuate integrated ratchet tooth side 25e with a radius of R6. After assembly, the center of this radius R6 will fall on the shaft A3. Figure 25 The ratchet portion 25b may also include a laterally projecting stop ridge 25f at its end, which engages with the sill 22m to prevent the curved ratchet 25 from sliding out of the channel 22l. The ratchet portion 25b will be able to slide smoothly within the channels 23i and 22l, and is therefore custom-designed.

[0073] In the assembled state, the pivot portions 21a and 22a, together with the pin 28, form a so-called first pivot and lever fulcrum resting on the axis A3; the clamp portions 21b and 22b, together, form a pair of clamps with variable elastic clearance and variable rigidity jaw clearance to clamp onto the workpiece. The handle portions 21c and 22c, together, form a pair of handles to apply clamping force. The arcuate ratchet 25 is anchored to the first rotating arm 21 at the anchor end 25a via the first pin 29, while the ratchet portion 25b is slidably received into the channel 23i on the linkage trigger 23 and the channel 22l on the second rotating arm 22, and sits on the threshold 22m; the linkage trigger 23 is pivotally connected to the second rotating arm 22 via coaxially aligned through holes 22k and 23f and the second pin 29, forming a second pivot, and can rotate in the space between the pair of pivot seats 22i and 22j and the through slot 22l. The pawl 24 is pivotally connected to the linkage trigger 23 through coaxially aligned through holes 23g and 24d and the first pin 30 in the space between the fork arms 23c and 23d, forming a third pivot, and can rotate within the range defined by the rotation limit system formed by the second pin 30 and the through slot 24f; at the same time, the compression spring 26 sandwiched between the linkage trigger 23 and the second rotating arm 22 applies a spring force, causing the linkage trigger 23 to rotate away from the second rotating arm 22 until the pawl 24 is fully engaged with the arc-shaped ratchet 25.

[0074] When the user applies clamping force through the handles, the arc-shaped ratchet 25 pushes up the pawl 24, causing the linkage trigger 23 to rotate closer to the second rotating arm 22 to disengage the pawl and ratchet. Simultaneously, the second pin 30 in the through hole 23h remains at the bottom of the through groove 24f to limit the rotation of the pawl 24, thereby enhancing the stability of relative motion. The arc-shaped ratchet 25 then continues to slide forward into the channel 22l, reducing the gap between the clamping jaws. When the clamping force disappears, the compression spring 26 applies elastic force, causing the linkage trigger 23 to rotate away from the second rotating arm 22 and forcing the pawl 24 to engage with the arc-shaped ratchet 25, thus preventing the arc-shaped ratchet 25 from slipping backward. At this point, the filter wrench self-locks to the fixed position. When the linkage trigger 23 is pulled closer to the second rotating arm 22, the pawl 24 is lifted off the arc-shaped ratchet 25, causing the pawl and ratchet to disengage, thus separating the handles.

[0075] Figure 31This demonstrates how the filter wrench can be used to tighten the filter 60. The user can first hand-tighten the filter 60 on the engine, then clamp the filter 60 between the pair of resilient clamp pads 27 and apply clamping force to the handles. This clamping force reduces the gap between the first and second rotating arms 21 and 22, causing the filter housing to contact the clamp pads 27. The user can further apply clamping force to deform the clamp pads 27 and the first and second rotating arms 21 and 22 to create appropriate clamping force without damaging the filter housing. The user can then use the resulting friction to rotate the first and second rotating arms 21 and 22 to complete the final quarter turn without further applying clamping force.

[0076] Figure 32 This demonstrates how the filter wrench can be used to unscrew the filter 60. The user can clamp the filter 60 between the pair of resilient clamping pads 27 and the pair of jaw arcs 21h and 22h, and then apply clamping force to the handles. This clamping force reduces the jaw gap between the first rotating arm 21 and the second rotating arm 22, causing the filter housing to contact the jaw arcs 21h and 22h. The user can further apply clamping force to cause the jaw arcs 21h and 22h to clamp into the filter housing, causing the clamping pads 27 and the first and second rotating arms 21 and 22 to deform and create a stronger clamping force. The user can then unscrew the filter from the engine by rotating the first and second rotating arms 21 and 22, utilizing the resulting friction, without further applying clamping force.

[0077] Figure 33 and Figure 34 Further clarification in the above Figure 32 In the example of a vortex filter, how does the adaptive self-locking mechanism work? Figure 33 This demonstrates the ideal state where the first spiral arm 21 and the second spiral arm 22 have no geometric deformation, as shown in the example. Figure 25 A composite view of the filter wrench section and the filter projection view obtained from the central plane EF. In this state, the clamping force forces the arcuate ratchet 25 to push the pawl 24 up, causing the pawl 24 to disengage from the arcuate ratchet 25 and slide on the sill 22m with rotational motion relative to the axis A3. When the clamping force disappears, the pawl 24 engages with the arcuate ratchet 25, locking the pair of handles in a fixed position, the third pivot is seated in a position, and the pawl 24 rotates and falls into a position within the rotation range defined by the second pin 30 and the through slot 24f.

[0078] Figure 34 This shows the actual state where the first spiral arm 21 and the second spiral arm 22 have geometric deformations, as shown in the example. Figure 25A composite view of the filter wrench's cross-sectional view and the filter's projected view obtained from the central plane EF. In this state, the handle portions 21c and 22c are bent inward, causing the arcuate ratchet 25 to lift away from the sill 22m and push the pawl 24 up. This causes the linkage trigger 23 to rotate close to the second rotating arm 22, while the pawl 24 moves about the third pivot axis, which is located in another position, to another position within the rotation range defined by the second pin 30 and the through slot 24f. This automatically adapts to the displacement of the arcuate ratchet 25 caused by the geometric deformation of the first rotating arm 21 and the second rotating arm 22, while maintaining the engagement of the pawl and the ratchet. Therefore, most of the energy of the originally applied clamping force is stored in the form of elastic deformation of the first rotating arm 21 and the second rotating arm 22, as well as the elastic deformation of the clamping pads 27, thereby maintaining a strong clamping force.

[0079] The working prototypes of the above preferred embodiments demonstrate that these adaptive self-locking mechanisms maintain an extremely stable engagement state even when the clamp undergoes significant geometric deformation.

Claims

1. An adaptive self-locking fixture, the fixture comprising: A first rotating arm, the first rotating arm being provided with a longitudinally bending body, the longitudinally bending body including a clamping part, a pivot part and a handle part; The second rotating arm is provided with a longitudinal bending body, which includes a clamping part, a pivot part and a handle part, wherein the handle part is provided with a transverse groove forming a channel between the two sides of the handle part; An arc-shaped ratchet is provided with an anchor end and an arc-shaped ratchet part. One side of the arc-shaped ratchet part is provided with an arc-shaped integrated ratchet tooth side surface with a fixed radius, and the other side is provided with an arc-shaped side surface. The arc-shaped side surface and the arc-shaped integrated ratchet tooth side surface are basically coaxial. An integrated ratchet trigger is provided with a pivot portion, an integrated ratchet portion, and a lever arm portion. The integrated ratchet portion includes a transversely slotted channel whose size and shape slidably accommodate the arcuate ratchet, such that at least one integrated ratchet tooth is formed on one side of the transversely slotted channel to couple with the side of the arcuate integrated ratchet tooth, and a clamping edge is formed on the other side to clamp the arcuate side. This forms a ratchet and ratchet self-locking mechanism by engaging the at least one integrated ratchet tooth with the side of the arcuate integrated ratchet tooth and the clamping edge with the arcuate side. The lever arm portion drives the disengagement of the ratchet and ratchet self-locking mechanism. The integrated ratchet trigger is anchored to a second rotating arm via a variable pivot. Elastic components; Among them, at the corresponding pivot points, the first and second rotating arms are pivotally interconnected to form a first pivot, a lever fulcrum, a pair of clamps with at least one variable gap for clamping the workpiece, and a pair of handles for applying clamping force; The arc-shaped ratchet is anchored to the first rotating arm by fixing its anchor end to the handle portion of the first rotating arm, and its ratchet portion faces the second rotating arm. The fixed radius center of the side of the arc-shaped integrated ratchet tooth falls on the axis of the first hub, and the side of the arc-shaped integrated ratchet tooth can rotate around the axis of the first hub in a path that coincides with its own arc. The integrated ratchet trigger is pivotally connected to the second rotating arm at its pivot portion to form a second pivot, and faces the first rotating arm itself; wherein the second pivot can move approximately longitudinally along the second rotating arm within a limited range, forming the variable pivot; The arc-shaped ratchet slides into the channel on the integrated pawl trigger and the channel on the second rotating arm in a manner that rotates relative to the axis of the first pivot. The elastic component is clamped between the integrated pawl trigger and the second rotating arm to apply a spring force, causing the integrated pawl trigger, which pivots around the second pivot, to rotate away from the second rotating arm until its clamping edge is blocked and clamped onto the arcuate side of the arcuate ratchet, and its pawl teeth are blocked and fully engaged by the arcuate integrated ratchet tooth side of the arcuate ratchet, forming a directional pawl and ratchet self-locking mechanism between the pair of handles; wherein the arcuate ratchet can only slide when the clamping edge of the integrated pawl trigger and its pawl teeth disengage from the arcuate side of the arcuate ratchet and its arcuate integrated ratchet tooth side by overcoming the spring force, thereby allowing the pair of handles to turn closer to each other, and when there is no opposing force to overcome the spring force, the integrated pawl trigger is fully engaged with the arcuate ratchet to prevent the pair of handles from separating; Wherein, when the first and second rotating arms do not undergo elastic geometric deformation due to the clamping force applied to the pair of handles, the arcuate ratchet slides into the channel on the integrated pawl trigger and the channel on the second rotating arm in such a manner that it rotates relative to the first pivot and the radius center of the side of its arcuate integrated ratchet teeth coincides with the axis of the first pivot; and when the arcuate ratchet is fully engaged with the integrated pawl trigger, the variable pivot is seated in a position within its limiting range; When the first and second rotating arms undergo elastic geometric deformation due to the clamping force applied to the pair of handles, the arcuate ratchet slides into the channel on the integrated pawl trigger and the channel on the second rotating arm in a manner that rotates relative to the first pivot and the radius center of the side of its arcuate integrated ratchet teeth is offset from the axis of the first pivot; and when the arcuate ratchet is fully engaged with the integrated pawl trigger, the variable pivot automatically adapts to the position change of the arcuate ratchet and sits in another position within its limit range; Wherein, when the first and second rotating arms undergo elastic geometric deformation due to clamping force, the variable pivot formed between the integrated pawl trigger and the second rotating arm, together with the directional pawl and ratchet self-locking mechanism, forms an adaptive self-locking mechanism; and When a counterforce against the elastic force is applied to the lever arm of the integrated pawl trigger, the integrated pawl trigger rotates closer to the second rotating arm, causing its clamping edge and its pawl teeth to disengage from the arcuate side surface of the arcuate ratchet and the arcuate integrated ratchet tooth side surface, thereby separating the pair of handles.

2. The adaptive self-locking fixture as described in claim 1, characterized in that, The clamp further includes a first rotating arm whose main body consists of a clamping portion at one end, a pivot portion in the middle, and a handle portion at the other end, and a second rotating arm whose main body consists of a clamping portion at one end, a pivot portion in the middle, and a handle portion at the other end; wherein the first rotating arm and the second rotating arm are pivotally interconnected at their respective pivot portions to form a first pivot and a lever fulcrum with a scissor-like connection in the middle, and a pair of clamping mouths are formed at one end of the lever fulcrum for clamping onto a load, while the pair of handles are formed at the other end of the lever fulcrum for applying force.

3. The adaptive self-locking fixture as described in claim 1, characterized in that, The clamp further includes a first rotating arm whose main body is composed of a pivot portion at one end, a clamping portion in the middle, and a handle portion at the other end, and a second rotating arm whose main body is composed of a pivot portion at one end, a clamping portion in the middle, and a handle portion at the other end; wherein the first rotating arm and the second rotating arm are pivotally interconnected at their respective pivot portions to form the first pivot and lever fulcrum at one end, and a pair of clamping portions are formed in the middle for clamping onto a load, while the pair of handles are formed at the other end for applying force.

4. An adaptive self-locking fixture, the fixture comprising: A first rotating arm, the first rotating arm being provided with a longitudinally bending body, the longitudinally bending body including a clamping part, a pivot part and a handle part; The second rotating arm is provided with a longitudinal bending body, which includes a clamping part, a pivot part and a handle part, wherein the handle part is provided with a transverse groove forming a channel between the two sides of the handle part; An arc-shaped ratchet is provided with an anchor end and an arc-shaped ratchet part. One side of the arc-shaped ratchet part is provided with an arc-shaped integrated ratchet tooth side surface with a fixed radius, and the other side is provided with an arc-shaped side surface. The arc-shaped side surface and the arc-shaped integrated ratchet tooth side surface are basically coaxial. A pawl, the pawl being provided with a pawl head and a rotation limiting part, the pawl head including an integrated pawl tooth side for meshing with the arc-shaped integrated ratchet tooth side on the arc-shaped ratchet, the integrated pawl tooth side, and a pivotal connecting member for the pawl to rotate about an axis, the rotation limiting part being used to limit the rotation of the pawl within a certain limiting range, wherein the pawl is anchored to the second rotating arm by a variable pivot; A linkage trigger is provided with a laterally protruding pivot portion and a longitudinal lever arm portion. The lever arm portion includes a lateral groove adjacent to and cutting into the pivot portion, the lateral groove forming a channel that can slidably receive the arcuate ratchet and can also pivotally receive the pawl. The pivot portion includes a first pivotal connecting member and a second pivotal connecting member. Elastic components; In this configuration, the first and second rotating arms are pivotally interconnected at the corresponding pivot points to form a first pivot and a lever fulcrum, a pair of clamps with at least one variable gap for clamping onto the load, and a pair of handles for applying force. The arc-shaped ratchet is anchored to the first rotating arm by fixing its anchor end to the handle portion on the first rotating arm, and its ratchet portion faces the second rotating arm. Wherein, the fixed radius center of the side of the arc-shaped integrated ratchet tooth falls on the axis of the first hub, wherein the side of the arc-shaped integrated ratchet tooth rotates around the axis of the first hub in a path that coincides with its own arc. The linkage trigger is pivotally connected to the second rotating arm via a first pivotal connecting member of its pivot portion to form a second pivot, and it faces the first rotating arm itself. The pawl is pivotally connected to the second pivotal connecting member on the linkage trigger via its pivotal connecting member, forming a third pivot; wherein the pawl pivots around the third pivot within a limited range defined by its rotation limiting portion, while the third pivot pivots around the second pivot to form the variable pivot; The arc-shaped ratchet slides into the channel on the linkage trigger and the channel on the second rotating arm in a manner that rotates relative to the axis of the first pivot. The elastic component is clamped between the linkage trigger and the second rotating arm to apply a spring force, causing the linkage trigger, which pivots around the second pivot, to rotate away from the second rotating arm until the pawl is blocked and fully engaged by the arcuate ratchet, thereby forming a directional self-locking mechanism between the pair of handles; wherein the arcuate ratchet can only slide when the pawl is disengaged from the arcuate ratchet by overcoming the spring force, thereby allowing the pair of handles to turn closer to each other; and when there is no opposing force to overcome the spring force, the pawl is fully engaged with the arcuate ratchet, preventing the pair of handles from separating; Wherein, if the first and second rotating arms do not undergo elastic geometric deformation due to the clamping force applied to the pair of handles, the arc-shaped ratchet slides into the channel on the linkage trigger and the channel on the second rotating arm in such a manner that it rotates relative to the first pivot and the radius center of the side of its arc-shaped integrated ratchet teeth coincides with the axis of the first pivot; and when the arc-shaped ratchet is fully engaged with the pawl, the variable pivot is seated in a position, and at the same time the pawl also rotates and is seated in a position within its limit range; When the first and second rotating arms undergo elastic geometric deformation due to the clamping force applied to the pair of handles, the arcuate ratchet slides into the channel on the linkage trigger and the channel on the second rotating arm in a manner that rotates relative to the first pivot and the radius center of its arcuate integrated ratchet tooth side is offset from the axis of the first pivot; and when the arcuate ratchet is fully engaged with the pawl, the variable pivot automatically adapts to the position change of the arcuate ratchet and sits in another position, while the pawl also rotates and sits in another position within its limit range; Wherein, when the first and second rotating arms undergo elastic geometric deformation due to clamping force, the variable pivot formed between the second rotating arm and the pawl, together with the pawl and ratchet directional self-locking mechanism, forms an adaptive self-locking mechanism; and When a counterforce against the elastic force is applied to the lever arm of the linkage trigger, the linkage trigger rotates closer to the second rotating arm, causing the pawl to disengage from the arcuate ratchet, thereby separating the pair of handles.

5. The adaptive self-locking fixture as described in claim 4, characterized in that, The clamp further includes a first rotating arm consisting of a clamping portion at one end, a pivot portion in the middle, and a handle portion at the other end, and a second rotating arm consisting of a clamping portion at one end, a pivot portion in the middle, and a handle portion at the other end; wherein the first rotating arm and the second rotating arm are pivotally interconnected at their respective pivot portions, wherein a first pivot and a lever fulcrum with a scissor-like connection are formed in the middle, and a pair of clamping mouths are formed at one end of the lever fulcrum for clamping onto a load, while the pair of handles are formed at the other end of the lever fulcrum for applying force.

6. The adaptive self-locking fixture as described in claim 4, characterized in that, The clamp further includes a first rotating arm whose main body is composed of a pivot portion at one end, a clamping portion in the middle, and a handle portion at the other end, and a second rotating arm whose main body is composed of a pivot portion at one end, a clamping portion in the middle, and a handle portion at the other end; wherein the first rotating arm and the second rotating arm are pivotally interconnected at their respective pivot portions, forming the first pivot and lever fulcrum at one end, and forming a pair of clamping portions in the middle for clamping onto a load, while forming the pair of handles at the other end for applying force.

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