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26 results about "Locking pliers" patented technology

Locking pliers (or Vise-Grips or a Mole wrench or a vice grip) are pliers that can be locked into position, using an over-center toggle action.

Locking pliers for temporary fasteners

ActiveUS12558764B2Fastener toolsMetal-working hand toolsLocking pliersMagnet
A pair of cleco pliers includes a first handle defining a first receptacle at a distal end thereof. In addition, the pair of cleco pliers includes a second handle pivotably coupled to the first handle and defining a second receptacle at a distal end of the second handle, and wherein the first receptacle and the second receptacle are configured to jointly receive a temporary fastener. The pair of cleco pliers further includes one or more magnets received in at least one of the first receptacle and the second receptacle configured to secure the temporary fastener within the first receptacle and the second receptacle via a magnetic biasing force applied by the one or more magnets to the temporary fastener.
Owner:WOMACK ANDREW G

Pliers (locking pliers)

ActiveCN309528270SStructural engineeringLocking pliers
1. The name of this design product: Pliers (locking pliers). 2. Purpose of this design product: used to remove locks. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.
Owner:高曼

Anti-falling system for roof construction

The utility model relates to the technical field of roof anti-falling, and provides an anti-falling system for roof construction, which comprises an anti-falling mechanism and a rope mechanism, the anti-falling mechanism comprises locking pliers and a telescopic fixing frame, and the telescopic fixing frame comprises a first mounting column, a second mounting column and a shear fork type assembly. The first mounting column and the second mounting column are both provided with locking pliers, the shear fork type assembly comprises multiple sets of shear forks connected with one another, each set of shear fork comprises a first shear fork arm and a second shear fork arm which are connected in a crossed mode, the first shear fork arm of the shear fork located at the head end is hinged to the first mounting column in a sliding mode, and the second shear fork arm of the shear fork located at the head end is hinged to the first mounting column; the first shear fork arm of the shear fork located at the tail end is hinged to the second mounting column, and the second shear fork arm is slidably hinged to the second mounting column; the rope mechanism is mounted on at least one of the first mounting column and the second mounting column. Therefore, the safety coefficient and the working efficiency of roof operation can be remarkably improved, the risk of high-altitude falling accidents is effectively reduced, and reliable guarantee is provided for high-altitude operation.
Owner:蒙牛乳业(唐山)有限责任公司 +1

Locking pliers with handheld anti-skid structure

ActiveCN223834318UPliersHand heldLocking pliers
The utility model discloses a lock wrench with a handheld anti-skidding structure, which comprises a wrench handle, a movable handle and a fixing device, a fixed wrench head is rotatably connected to the upper end inside the left side of the wrench handle, a wrench opening is fixedly connected to the lower end of the left side of the fixed wrench head, the movable handle is connected to the lower part of the wrench handle, and the fixing device is connected to the movable handle. A movable tong head is rotationally connected to the interior of the left side of the movable handle, rivets are connected to the upper end and the lower end of the right side of the movable tong head in a penetrating mode, a connecting block is fixedly connected to the middle of the right side of the movable tong head, a fixing strip is fixedly connected to the right end of the upper surface in the tong handle, and a spring is connected to the interior of the tong handle; a rotating rod is fixedly connected to the left end of the spring, a connecting ring is fixedly connected to the right side of the spring, a fixed handle is fixedly connected to the right side of the forceps handle, and a storage groove is formed in the left side of the fixed handle. According to the locking pliers with the handheld anti-skid structure, the opening size of the pliers head can be adjusted, mistaken touch can be prevented, and the handheld anti-skid structure is arranged.
Owner:NANTONG TONGLI TOOLS CO LTD

Device for pressing casing pipe pit

The utility model discloses a device for pressing a casing pit. According to an existing pit production mode, bosses are machined at three points of the circumference through locking pliers, a middle sleeve is pressed into a pit through the hand force of an operator, and it cannot be guaranteed that enough force is provided for pressing the middle sleeve into the pit through the mode. The device comprises an upper pressing block (2) and a lower pressing block (8), the upper pressing block is connected with the lower pressing block through a bolt (4), the upper pressing block is provided with a punch hole (3), a punch (1) is arranged in the punch hole, the lower pressing block is provided with two center holes (5), and the center holes (5) are communicated with the punch hole (3). And a steel plate (7) is welded at the center hole after a center (6) is placed in each center hole. The sleeve pit pressing device is used for pressing the sleeve pit.
Owner:HARBIN BOILER CO LTD

Locking protection method for locking pliers

PendingCN121083549APliersLocking pliersHardware tool
The invention relates to the technical field of manual hardware tools, in particular to a locking protection method for locking pliers. Comprising a fixed jaw, a movable jaw, a fixed handle and a movable handle, the movable jaw is connected with the fixed handle through a rivet A, the movable jaw is connected with the movable handle through a rivet B, an adjusting screw makes contact with the rear end of a supporting plate, the front end of the supporting plate is connected with the movable handle through a rivet C, and a tension spring is arranged between the middle of the fixed handle and the movable jaw. A safety switch is arranged at the position, close to the front end of the supporting plate, in the movable handle, a damping compression spring is arranged between the side portion of the safety switch and the side wall of the movable handle, and the safety switch and the damping compression spring are connected with the movable handle through a rivet E. When a workpiece is clamped, after the notch of the safety switch makes contact with the front end of the supporting plate, the safety switch locks the locking pliers at the moment, the locking pliers cannot be opened no matter the handle is opened or in other modes, safety is achieved, the situation that the locking pliers are opened due to mistaken touch can be avoided, and potential safety hazards are eliminated.
Owner:WEIHAISHIWEILI TOP GRADE TOOL CO

Locking forceps

A forceps may include: a housing defining an internal passageway and a longitudinal axis extending between proximal and distal ends of the housing; a first jaw and a second jaw each slidably and pivotably connected to the housing, where the first and second jaws have an open configuration and a closed configuration; a first connection member having a first end pivotably connected to the first jaw; a second connection member having a first end pivotably connected to the second jaw; a connecting pin assembly that slidably and pivotably connects the first and second jaws to the housing; and a driver operably connected to a second end of the first connection member and a second end of the second connection member. Longitudinal movement of the driver in a proximal direction relative to the housing moves the first and second jaws, along with the connecting pin assembly, relative to the housing.
Owner:COOK MEDICAL TECHNOLOGIES LLC

Locking pliers with improved adjustment member

ActiveUS12667938B2Classical mechanicsLocking pliers
A hand tool includes a first jaw, a first handle fixed to the first jaw, a second jaw, and a second handle pivotally coupled to the second jaw, a link member, and an adjustment member. The adjustment member is operable to axially move a first end of the link member to vary a distance between the first and second jaws. The adjustment member includes an engagement surface engageable with the first end of the link member, a shank in threaded engagement with a bore in the first handle, and a flange extending from the shank opposite the engagement portion. The flange includes a first side, a second side opposite the first side, and an elongate opening extending through the first and second sides.
Owner:MILWAUKEE ELECTRIC TOOL CORP

Non-crush locking pliers

PCT designated stageWO2025248212A1PliersMetal frameworkClassical mechanics
Self adjusting locking pliers (1) comprising fixed and pivotal jaws (205, 300) operated by fixed and moving handles (200, 400) with an automatically adjustable pivotal strut (500) between the handles. The pivotal strut incorporates a pivotal strut toothed slot (505) which contains a corresponding pivotal strut toothed latch (507), resiliently operated towards the closed position by the pivotal strut toothed latch spring (513). The pivotal strut toothed latch (509) engages or disengages within the pivotal strut toothed slot locking teeth (506) according to the angle of the operated pivotal strut (500) relative to the toothed latch actuation pin (602) affixed within the fixed handle metal framework (212), thereby automatically adjusting the required leverage length of the pivotal strut (500) force triangle first side span (804) resulting in workpiece W clamping widths and pressures similar to existing vice grip pliers yet affording smaller widths between the operated fixed and moving handle (200, 400) clenching grips (213, 409).
Owner:BUCHANAN NIGEL

Quick clamping locking pliers

The utility model relates to the technical field of locking pliers, in particular to quick clamping locking pliers which comprise a locking pliers body, a guide rail is arranged at the bottom of the locking pliers body, and a fixator is arranged on one side of the guide rail. One end of the adjusting screw rod penetrates through the guide rail in a screwed manner and is connected with the fixer; the adjusting assembly is arranged on the side wall of the side, close to each other, of the fixator and the guide rail; when the fixing device and the guide rail move towards the fixing piece, elastically-arranged clamping rods are extruded, the clamping rods are shrunk into the sinking grooves, when the elastically-arranged clamping rods make contact with the fixing piece, a pull rod is pressed downwards, the pull rod presses second abutting rods downwards through a pressing plate, the second abutting rods press first abutting rods on the corresponding clamping rods downwards, and the clamping rods are clamped into the sinking grooves. The first abutting rod presses the first abutting rod on the adjacent clamping rods through the third abutting rod, so that the clamping rods which are elastically arranged are limited, and the locking pliers body is fixed to the special-shaped fixing piece through the clamping rods.
Owner:CHONGQING ZHAOYAO MACHINERY MANUFACTURING CO LTD

Multi-gear adjustable locking pliers

ActiveCN223369194UPliersLocking pliersHand tool
The utility model relates to the technical field of manual tools, in particular to a multi-gear adjustable lock wrench which comprises a fixed handle, a movable handle is assembled on the lower side of the fixed handle, and a multi-gear adjustable wrench head is arranged on the left side of the fixed handle and the left side of the movable handle. The clamp head is composed of two clamping units, one clamping unit is connected with the fixed handle through a connecting plate, and the other clamping unit is connected with the movable handle through a connecting plate. The clamping unit comprises a first-stage clamp body, a second-stage clamp body and a third-stage clamp body, the third-stage clamp body is fixedly connected with the connecting plate, the second-stage clamp body is movably connected to the left side of the third-stage clamp body, the first-stage clamp body is movably connected to the left side of the second-stage clamp body, and the first-stage clamp body and the second-stage clamp body are both of an L-shaped structure. Through the design of the multi-gear adjustable plier head, a user can easily adjust the length of the plier head according to actual requirements, so that the plier head can adapt to parts with different sizes and shapes, the flexibility and adaptability of the locking pliers are greatly improved, and diversified use requirements are met.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Bench drilling machine base with quick clamping mechanism

The utility model discloses a bench drilling machine base with a quick clamping mechanism, which belongs to the technical field of drilling machines, and comprises a base, a stand column is fixedly mounted at the top of the base, a spindle box is movably mounted on the stand column, and a spindle is mounted on the spindle box. A transverse T-shaped groove and two parallel longitudinal T-shaped grooves are formed in the top face of the base, T-shaped bolts are movably connected in the longitudinal T-shaped grooves in a clamped mode, a material baffle is arranged at the top of the base, a pair of locking pliers and other types of matched clamps can be installed through a plurality of formed installation round holes, and due to the installation mode of inserting connection, the locking pliers can be installed conveniently. Rapid adjustment can be carried out according to the fixing position of a workpiece, meanwhile, a transverse T-shaped groove, a longitudinal T-shaped groove, a matched T-shaped bolt and a locking handle are additionally arranged, the positions of the material baffle and other matched auxiliary tools can be conveniently adjusted, the operation flexibility of the overall structure is greatly improved, and use is more convenient and faster.
Owner:QINGDAO JINLING ELECTRICAL TECHNOLOGY CO LTD

Adjustable Pair Of Locking Pliers

PendingUS20260014672A1PliersScrew positionLocking pliers
An adjustable pair of locking pliers has a fixed handle including an upper jaw, a lower jaw pivotably connected to the fixed handle, a movable handle pivotably connected to the lower jaw, and an adjustment assembly. The adjustment assembly permits adjustment of the gripping space between the upper and lower jaws when in a clamping position. The adjustment assembly includes an adjustment screw positioned in an end portion of the fixed handle and a locking piece operatively connecting the movable handle to the adjustment screw and designed to releasably lock the upper and lower jaws under tension in the clamping position. The adjustment screw includes a threaded body and a handle positioned transverse to the threaded body and designed to be manually grasped and twisted by a user to advance and retract the threaded body to release the upper and lower jaws from a locked state.
Owner:IRELAND MITCHELL

Multi-presser-foot locking pliers

ActiveCN223763015UHand vicesLocking pliersRivet
A pair of multi-presser-foot locking pliers comprises a presser foot A, a presser foot B, a V-shaped presser foot, a pin, a fixed arm, a movable arm, a rivet, a fixed handle, a movable handle, an adjusting screw, a tension spring, a supporting plate, a lifting piece, cushion blocks and the like, the presser foot A is connected with the fixed arm, the presser foot B is connected with the fixed arm, the fixed arm is connected with the fixed handle, the cushion block A and the cushion block B are arranged between the V-shaped presser foot and the movable arm, the V-shaped presser foot is connected with the movable arm, and the movable arm is connected with the pin. The movable arm is connected with the movable handle, the lifting piece is connected with the movable handle, the supporting plate is connected with the movable handle, the movable arm is connected with the fixed handle, the tail portion of the fixed handle is provided with the adjusting screw, and the two ends of the tension spring are connected with the movable arm and the fixed handle. The B presser foot is connected to the fixed arm through the B rivet, the V-shaped presser foot is connected to the movable arm through the inner hexagonal screw, and the square tube and the round tube can be clamped more firmly through the three presser feet.
Owner:威海市力钰实业有限公司

Locking plier hand tool convenient to use

The utility model discloses a hand tool for locking pliers, which is convenient to use and comprises a connecting seat, a mounting cavity with a mounting function is arranged in the connecting seat, and connecting handles are fixedly connected to the right end of the connecting seat in a vertically symmetrical manner; an adjusting structure and a cutting structure are arranged on the left side of the mounting cavity, the adjusting structure comprises a connecting shaft, a worm gear, a worm and a tong head, and the cutting structure comprises a threaded rod, a mounting strip, a blade and a connecting rod; the right end of the connecting handle is integrally connected with a handheld part, the outer surface of the connecting handle is fixedly connected with a second protective sleeve, the outer wall of the handheld part is fixedly connected with a third protective sleeve, the inner wall of the handheld part is fixedly connected with a fourth protective sleeve, and the outer surface of the second protective sleeve is connected with first protruding blocks in an embedded mode at equal intervals. The locking plier hand tool convenient to use is convenient to use, looseness during clamping is prevented, the distance between the blades can be conveniently adjusted for wire stripping, and meanwhile protection is easy.
Owner:NANTONG TONGLI TOOLS CO LTD

Locking Plier Connector

PendingUS20250375856A1PliersClampsLocking pliersScrew thread
An apparatus with single part body plus fastener for rigidly connecting locking pliers to commonly available mounts to afford simple, highly versatile and capable work holding solutions. A method for attaching mounts to locking pliers by clamping the handle with an adjustable spike inserted in the hole commonly present on plier handles on one side and a hooked feature on the other. The method discloses the spike best mode orientation to the hook to afford clamping of multiple sizes of locking pliers. Mounting thread angle axes relative to the locking plier handle are disclosed that accommodate both clearance between the mount and locking plier jaw tightening features for jaw adjustment and for aligning the fixed jaw with mount axes, for varying sizes of locking pliers. A best mode angle to align the fixed jaw axis with the mount axis is given to suit all sizes of locking pliers in scope.
Owner:DARBY ROBERT HUGH TAVENER

Locking pliers

ActiveCN309466743SLocking pliersMechanical engineering
1. The name of this design product: Locking Pliers. 2. Purpose of this design product: used for clamping objects. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.
Owner:HANGZHOU GREAT STAR IND CO LTD

Locking pliers that can be adjusted using a single hand

PCT designated stageWO2026057902A1PliersLocking pliersCam
The most relevant difference with respect to conventional tools is that the upper jaw is hinged (6) and supported on a cam (8). By turning the cam, the opening of the jaws is adjusted without using the usual adjustment screw located in the handle. However, keeping said screw allows additional opening of the lower jaw. This opening can also be obtained by replacing the hole articulated with an actuating lever (3) with selectable notches (10 and 11). Dispensing with the adjustment screw allows a series of conical washers preloaded by a screw and nut (23) to be accommodated. If a pressure bar (2), initially positioned by a screw (15) and spring (16), moves and pushes the nut (23), exceeding the specified preload, the nut will move, facilitating closing. The tool can be very quickly adjusted, using a single hand, and provides a wider opening than usual.
Owner:GARCIA SANCHEZ EDUARDO +1

Self adjusting locking pliers

PCT designated stageWO2025248211A1PliersMetal frameworkClassical mechanics
Self adjusting locking pliers (1) comprising fixed and pivotal jaws (205, 300) operated by fixed and moving handles (200, 400) with an automatically adjustable pivotal strut (500) between the handles. The pivotal strut incorporates a pivotal strut toothed slot (505) which contains a corresponding pivotal strut toothed latch (507), resiliently operated towards the closed position by the pivotal strut toothed latch spring (513). The pivotal strut toothed latch (509) engages or disengages within the pivotal strut toothed slot locking teeth (506) according to the angle of the operated pivotal strut (500) relative to the toothed latch actuation pin (602) affixed within the fixed handle metal framework (212), thereby automatically adjusting the required leverage length of the pivotal strut (500) force triangle first side span (804) resulting in workpiece W clamping widths and pressures similar to existing vice grip pliers yet affording smaller widths between the operated fixed and moving handle (200, 400) clenching grips (213, 409).
Owner:BUCHANAN NIGEL

Device for stripping secondary shielding film of LNG (Liquefied Natural Gas) ship and operation method of device

PendingCN120773439ALayered productsLaminationLocking pliersWinch
The invention relates to a device for stripping a secondary shielding film of an LNG (liquefied natural gas) ship and an operation method of the device. The device comprises a carrying table, a first clamping plate for clamping a lower-layer film is arranged at one end of the length direction of the table top of the carrying table, and a winch is arranged at the other end and provided with a rope with a hook; a pair of guide rails are arranged on two sides of the carrying table; the distance between the guide rails is greater than the width of the secondary shielding film; a second clamping plate for clamping an upper-layer film is arranged on one side, close to the winch, of the carrying table; a supporting rod for controlling the stripping angle of the upper-layer film when the secondary shielding film is stripped is arranged on one side, close to the first clamping plate, of the carrying table; the second clamping plate and the supporting rod can slide along the guide rail; the upper portion of the second clamping plate is provided with a hanging ring or a hanging hole used for being connected with a hook. The mechanical stripping operation can be carried out at stable speed, tension and stripping angle, the risk that a product is possibly scratched by RSB when the product is manually stripped by locking pliers is solved, the safety is improved, the labor intensity of workers is greatly reduced, the labor cost is saved, and the stripping efficiency is improved.
Owner:ZHEJIANG LIANYANG NEW MATERIAL +1

Locking pliers for clamping cylindrical workpiece

ActiveCN224012064UPliersForcepsLocking pliers
The locking pliers comprise a pliers body, two semicircular arc-shaped clamping plates are arranged between two pliers heads of the pliers body, connecting sleeves are fixed to the sides, away from each other, of the two arc-shaped clamping plates, and fixing assemblies are fixed to the inner sides of the two pliers heads of the pliers body. The connecting sleeve can be fixedly connected to the surface of the fixing assembly in a sleeving mode. The forceps body and the two arc-shaped clamping plates are arranged, the connecting sleeve is fixed to the arc top of each arc-shaped clamping plate, the fixing assembly is arranged on the forceps head of the forceps body, the arc-shaped clamping plates can be fixed to the forceps head of the forceps body through rapid clamping connection of the connecting sleeves and the fixing assemblies, and the two arc-shaped clamping plates can be driven to be close to each other by pinching the forceps body; and therefore, the two arc-shaped clamping plates are used for clamping the annular hoops on the cylindrical workpieces, and the two cylindrical workpieces can be clamped conveniently. And after the two arc-shaped clamping plates are detached, the plier body can be used as normal locking pliers, so that the application range of the locking pliers is wider.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +2

Adjustable locking pliers

ActiveUS12415251B2PliersLocking pliersMechanical engineering
An adjustable locking pliers includes a stationary handle, a stationary jaw, an operating lever and a movable jaw. The jaw is coupled by an axis which is selectively displaceable to alter the jaws' gripping capacity. The operating lever is coupled to the movable jaw by a first pivot. The lever rear forms a movable handle. A spring biases rotation of the movable jaw about the axis away from the stationary jaw. An actuation rod having a series of teeth and a stop face is coupled to the operating lever by a second pivot part way along the operating lever and coupled to the stationary handle by means of a third pivot. A catch having a series of teeth and a stop face is pivotally coupled to the operating lever. The teeth of the actuation rod and the teeth of the catch are configured to engage each other to permit multiple clamping positions.
Owner:STANLEY BLACK & DECKER MEA FZE

Locking pliers

ActiveCN223811978UPliersLocking pliersRivet
A pair of locking pliers comprises a fixed jaw, a movable jaw, a fixed handle, a tension spring, a supporting plate, an adjusting bolt, a lifting piece, a movable handle, a rivet and the like, the fixed jaw and the fixed handle are connected through welding, the movable jaw is connected with the front end of the fixed handle through the rivet, and the adjusting bolt is arranged at the tail end of the fixed handle. The movable jaw is connected with the movable handle through a rivet, the front end of the supporting plate is connected with the movable handle through a rivet, and the lifting piece is connected with the movable handle through a rivet. The scale at the rear end of the fixed handle represents the opening degree of the locking pliers after the locking pliers are locked, when a workpiece needs to be clamped, the movable handle is completely released firstly, then the position of the adjusting bolt is adjusted, the arrow on the supporting plate is aligned with the scale on the scale ruler, then the movable handle is held and locked, and the locking pliers can just clamp the workpiece at the moment and do not need to be adjusted many times.
Owner:WEIHAI WEILIYUCHENG TOOLS CO LTD