CN208084181U - Quick change locking pliers - Google Patents

Abstract

The utility model is related to a kind of quick change locking pliers, it solves existing bar hold energetically to be structure as a whole with handle, one locking pliers can only correspond to a kind of clamp port, use limited defect, including fixed handle and flexible handle, stationary gripping part is connected on fixed handle, movable clamping part is connected on flexible handle, wherein stationary gripping part includes the attachment device of fixed seat, the fixed chuck that can be relatively fixed a quick change and connection, and movable clamping part includes the attachment device of fixed seat, the active chuck that can be relatively fixed a quick change and connection.Fixed chuck and the structure that fixed seat is fission, active chuck are seperated structure with fixed seat so that fixed chuck and active chuck can be replaced, and different clamp ports can be formed after replacement, to adapt to different clamping needs；It is connected with attachment device after mating connection, prevents fixed chuck and active chuck from being detached in use with corresponding fixed seat, influence to use.

Description

Quick change locking pliers

Technical field

The utility model is related to a kind of tool tong, especially a kind of quick change locking pliers for capableing of quick-replaceable collet.

Background technology

Locking pliers is mainly used for holding parts, and prodigious clamping force can be locked and be generated to jaw, makes to be clamped part not It can loosen, the processing such as holding parts are riveted, welded, are ground.

Locking pliers clamping is that the position for the straight line that three pivoting points form in the so-called line of force is crossed by flexible handle rotary type It sets to form self-locking structure.As long as releasing the structure of self-locking when locking pliers opens, under the action of the elastic member, the plier of locking pliers It opens.

But the plier of existing locking pliers opens the angle that can not limit locking pliers flexible handle opening, this will result in The angle opened between flexible handle and fixed handle is more than the angle that palm holds conjunction, brings trouble to operation, especially opens Need to hold again after opening co-clip it is tight when, a hand can not normal operating.

The head chuck of existing locking pliers and handle are integrated, and such one only has a kind of clamp port locking pliers, such as Fruit needs different clamp ports, then it is higher to must be equipped with more costs locking pliers, spent in this way, and carrying when is more energetically Pincers also take up larger memory space, the again mostly of locking pliers are metalworks, and weight is larger, after quantity is more, the weight that integrally carries Amount will bigger, it is inconvenient to carry.

Invention content

The utility model solves existing bar hold energetically and is structure as a whole with handle, and one can only correspond to one locking pliers Kind clamp port provides a kind of quick change locking pliers using limited defect, can replace different collets as required.

The utility model also solves existing bar hold energetically and is structure as a whole with handle, needs to be equipped with more to adapt to Different clamp ports, causes to spend of high cost, and it is big to carry occupied space, carries the big defect of weight, provides a kind of quick change energetically Pincers are not necessarily to integral replacing, and different clamp ports can be formed by only needing to change different collets, spend cost reduction, easy to carry.

The utility model also solves the angle that existing locking pliers is unable to control flexible handle opening, causes flexible handle It can not be held and be closed by one after opening, operated cumbersome defect, a kind of quick change locking pliers is provided, flexible handle is relatively fixed The opening angle of handle is restricted, and the operation for holding conjunction can be completed by a hand, easy to operate.

The specific technical solution of the utility model is：A kind of quick change locking pliers, including fixed handle and flexible handle, it is fixed Be connected with stationary gripping part on handle, be connected with movable clamping part on flexible handle, wherein stationary gripping part include fixed seat, can It is relatively fixed the fixed chuck of a quick change and the attachment device of connection, movable clamping part includes fixed seat, can be relatively fixed seat The active chuck of quick change and the attachment device of connection.

Fixed chuck and fixed seat cooperatively form stationary gripping part, and fixed chuck can be relatively fixed a quick change, active chuck Cooperatively form movable clamping part with fixed seat, active chuck can be relatively fixed a quick change, herein the meaning of quick change be exactly can be fast Speed is replaced, and quick-replaceable may be used slidingtype grafting, plug-in grafting, can also be rotary type grafting, fixed chuck and solid Reservation is the structure of fission, and active chuck is seperated structure with fixed seat so that fixed chuck and active chuck can be more It changes, different clamp ports can be formed after replacement, to adapt to different clamping needs；Connected with attachment device after mating connection It connects, prevents fixed chuck and active chuck from being detached in use with corresponding fixed seat, influence to use.

Preferably, being connected by the way of grafting between fixed chuck and corresponding fixed seat；Active chuck with it is corresponding Fixed seat between using with fixed chuck it is identical or different by the way of connect.It can be between active chuck and corresponding fixed seat It is connected using identical inserting mode, different inserting modes can also be used to connect, such as slidingtype grafting or plug-in Grafting or rotary type grafting.

Preferably, being provided with sliding slot in fixed seat, sliding slot has opening, is provided on fixed chuck and active chuck convex The portion of rising, lug boss are inserted into from the open end of sliding slot in sliding slot.

Preferably, being provided with convex diameter and slot in fixed seat, it is arranged on fixed chuck and active chuck fluted and convex Block, convex diameter are inserted into groove, and convex block is inserted into slot.

Preferably, attachment device uses connecting shaft, it is provided with escape groove in connecting shaft, connection is provided in fixed seat Link slot is provided on hole, fixed chuck and active chuck, connecting shaft is inserted into connecting hole and coordinates with link slot.

There are card slot, connecting shaft end to be pierced by connecting hole and blocked by clamp spring preferably, connecting shaft end is provided circumferentially about； The other end of connecting shaft is provided with operation portion.

Preferably, being equipped with spring in connecting shaft, connecting shaft keeps connecting under the action of the spring.

Preferably, being connected with elastic component, flexible handle and fixation between fixed seat and fixed handle on flexible handle Support shelves are connected between handle, be provided on flexible handle place restrictions on support shelves movement place restrictions on mechanism.Elastic component makes movable clamping Portion can be relatively fixed handle and be automatically separated, and will not close up automatically after separation, clamp port is facilitated to be clamped next time；On flexible handle Be arranged place restrictions on mechanism also just placed restrictions on support shelves with respect to flexible handle displacement, to define flexible handle be relatively fixed handle open The angle opened, prevent flexible handle opening angle too greatly can not one hold close so that locking pliers can be operated with a hand, It operates more convenient.

Preferably, be provided with kidney slot on flexible handle, the end for supportting shelves is connected with and places restrictions on axis, places restrictions on axis and kidney slot It cooperatively forms and places restrictions on mechanism；Connecting rod is hinged in flexible handle, support shelves are hinged by placing restrictions on axis with connecting rod.

Preferably, in flexible handle rotation process, support shelves can cross connecting rod and flexible handle with the point that connecting rod is hinged Hinge joint and flexible handle and fixed seat the line that is formed of hinge joint, flexible handle draws close to fixed handle and crosses this Line just complete active chuck clamping, flexible handle far from fixed handle and cross the line just complete active chuck unclamp.

The utility model has the beneficial effects that：Fixed chuck and the structure that fixed seat is fission, active chuck and fixed seat For seperated structure so that fixed chuck and active chuck can be replaced, and different clamp ports can be formed after replacement, to Adapt to different clamping needs；It is connected with attachment device after mating connection, prevents fixed chuck and active chuck using process In detached with corresponding fixed seat, influence to use.

Description of the drawings

Fig. 1 is a kind of structural schematic diagram of the utility model；

Fig. 2 is a kind of decomposition diagram of structure shown in the utility model Fig. 1；

Fig. 3 is the side view of structure shown in the utility model Fig. 1；

Fig. 4 is the A-A sectional views of structure shown in the utility model Fig. 3；

Fig. 5 is the B-B sectional views of structure shown in the utility model Fig. 4；

Fig. 6 is second of schematic diagram of the utility model Fig. 5 structures；

Fig. 7 is second of structural schematic diagram of the utility model；

Fig. 8 is the C-C sectional views of structure shown in the utility model Fig. 7；

Fig. 9 is the schematic diagram of the other several collets of the utility model；

In figure：1, flexible handle, 2, place restrictions on axis, the 3, first rivet, the 4, second rivet, 5, connecting shaft, 6, fixed seat, 7, living Dynamic collet, 8, fixed chuck, 9, third rivet, 10, tension spring, 11, kidney slot, 12, fixed handle, 13, adjusting screw, 14, support Shelves, 15, connecting rod, the 16, first axis hole, 17, lug boss, 18, sliding slot, 19, escape groove, 20, clamp spring, 21, operation portion, 22, connection Hole, 23, stamped groove, the 24, second axis hole, 25, third axis hole, 26, stopper, 27, adjustable side, 28, protrusion, 29, link slot, 30, Hook portion, 31, spring, 32, convex block, 33, slot, 34, convex diameter.

Specific implementation mode

Below by specific embodiment, and in conjunction with attached drawing, the utility model will be further described.

Embodiment 1：A kind of quick change locking pliers（Referring to Fig. 2 Fig. 2 Fig. 3 Fig. 4）, including fixed handle 12 and flexible handle 1, it is living Fixed handle end is connected with movable clamping part, and fixed handle end is connected with stationary gripping part, movable clamping part and fixed handle Between it is hinged by third rivet 9, tension spring 10 is connected between movable clamping part and fixed handle.

Stationary gripping part includes fixed seat 6, can be relatively fixed the fixed chuck 8 of a quick change and the attachment device of connection, Movable clamping part includes fixed seat 6, can be relatively fixed the active chuck 7 of a quick change and the attachment device of connection.Fixed chuck It is connected by the way of grafting between corresponding fixed seat；Between active chuck and corresponding fixed seat by the way of grafting Connection.Sliding slot 18 is provided in fixed seat（Referring to Fig. 2）, there is opening, opening to be in outboard end, section of sliding slot for the end of sliding slot Face approximate T-shape, wide position is rounded, and lug boss 17 is provided on fixed chuck and active chuck, and the section of lug boss is also close Like T shapes, wide position is same rounded and can match with sliding slot, and lug boss is inserted into from the open end of sliding slot in sliding slot. Connecting hole 22 is provided in fixed seat, the axis of connecting hole and the length direction of sliding slot are perpendicular, and connecting hole is connected with sliding slot It is logical.Be provided on the lug boss of active chuck and fixed chuck concave link slot 29, active chuck and fixed chuck with it is corresponding Fixed seat connection after, the position of link slot is just directed at connecting hole.Attachment device uses connecting shaft 5, and one end of connecting shaft is set It is equipped with operation portion 21, the diameter of operation portion is more than axle body, the escape groove 19 of rectangle is provided on axle body, the depth of escape groove is enough Active chuck or fixed chuck are skidded off out of corresponding sliding slot.Connecting shaft is inserted into and is pierced by from connecting hole, on the end being pierced by It is provided with card slot and is limited by clamp spring 20.Active chuck and fixed chuck in the present embodiment use circular clamp mouth.

The first axis hole 16 and third axis hole 25 are provided in the fixed seat of movable clamping part.The fixation seat tool of stationary gripping part There are insertion end, the two sides of insertion end to be provided with stamped groove 23, coordinates with fixed handle punching press after insertion and fix.

The cross section of flexible handle and fixed handle is in a groove shape, and the second axis hole 24, activity folder are provided on fixed handle It holds and is hinged by the second rivet 4 between the fixed seat in portion and flexible handle, third axis hole institute in the fixed seat of movable clamping part Position be inserted into the flute profile of fixed handle, the second axis hole and third axis hole are hinged by third rivet 9.Flexible handle On be provided with kidney slot 11, the position of the position of the second rivet, the position of the first rivet and kidney slot on flexible handle successively Arrangement, interior one end by 3 articulated linkage 15 of the first rivet of flute profile of flexible handle, the intermediate position of connecting rod is by placing restrictions on axis 2 It is hinged in kidney slot, the length of flexible handle is more than the length of connecting rod.Support shelves 14, support are connected between connecting rod and fixed handle One end of shelves and the intermediate position of connecting rod are hinged by placing restrictions on axis, and the other end for supportting shelves is inserted into the flute profile of fixed handle, support The intermediate position of shelves is provided with protrusion 28, and protrusion is towards connecting rod.The tail end of fixed handle is bolted with adjusting screw rod 13, supports this of shelves Stopper 26 is provided on one end, stopper makes this one end for supportting shelves form the adjustable side 27 of horn shape, the end of adjusting screw rod and support The adjustable side of shelves is in contact, and rotation adjusting screw rod is position of the adjustable side of adjustable support shelves in fixed handle flute profile, to Change and closes up distance between flexible handle and fixed handle.The bottom of the flute profile of fixed handle is provided with the hook portion 30 of indent （Referring to Fig. 4）, one end of tension spring hooks hook portion, and the other end of tension spring is connected with the fixed seat of movable clamping part.

It can be slided in movable kidney slot after placing restrictions on axis connection, when locking pliers is in release shape, place restrictions on axis and be in kidney-shaped Hole is towards one end of fixed handle；When laborsaving locking pliers is in clamping shape, places restrictions on axis and be in one of kidney slot far from fixed handle End.

Rotate flexible handle so that flexible handle is rotated around the second rivet and drawn close to fixed handle, and flexible handle pushes away Dynamic support shelves are dynamic around shaft rotation is placed restrictions on, while placing restrictions on the one end of axis from kidney slot towards fixed handle towards kidney slot far from fixed hand It moves one end of handle.The first rivet, which is in, at this time the second rivet and places restrictions on the left lateral position of axis line, until the first rivet crosses the Two rivets and place restrictions on axis line and to the line right lateral position, at this time locking pliers be in self-locking clamping shape.

Rotate flexible handle so that flexible handle is opened with fixed handle, places restrictions on axis at this time from kidney slot far from fixed hand One end of handle is moved towards kidney slot close to one end of fixed handle, and then the first rivet is from the second rivet and the line for placing restrictions on axis Right lateral position go to the left lateral position of the line, then under the action of tension spring, movable clamping part is opened, and flexible handle is also opened automatically It opens, the one end for reaching kidney-shaped close to fixed handle until placing restrictions on axis, flexible handle and fixed handle opening angle are maximum at this time.

Fixed chuck is inserted into from the sliding slot open end of fixed seat in sliding slot to be coordinated with fixed seat, after grafting in place, connection Slot is coaxial with connecting hole, is then inserted into connecting shaft from connection bore ends, is then rotatablely connected axis so that the escape groove in connecting shaft It is separated with fixed chuck, fixed chuck is connected with corresponding fixed seat at this time（Referring to Fig. 5）.Similarly, active chuck with it is corresponding Fixed seat also fixed using such mode.When needing replacing collet, it is rotatablely connected axis so that the escape groove in connecting shaft is just Well towards corresponding link slot, active chuck and fixed chuck can be exited out of sliding slot at this time, while replace with the folder of needs Head.For example nipper plier is formed using the sharp mouth collet in Fig. 9（a）Or straight line collet forms straight line clamp（b）, or Person forms a type clamps using a type collets（c）.

Embodiment 2：A kind of quick change locking pliers, difference from Example 1 are：The length of connecting shaft is larger, is more than real The length of the connecting shaft of example 1 is applied, which allows connecting shaft to be moved in the axial direction in connecting hole.The axle body of connecting shaft It is provided with the escape groove of rectangle, spring 31 is also equipped in connecting shaft, spring makes the operation portion 21 of connecting shaft leave fixed seat （Referring to Fig. 6）, at this time the position of escape groove the position in respective protrusions portion is also left in axis direction, when press connecting shaft compress bullet After spring, escape groove can be again corresponding with lug boss, and after release, connecting shaft bounces the company of being in again again under the action of the spring Connect state.

Embodiment 3：A kind of quick change locking pliers（Referring to Fig. 7 Fig. 8）, difference from Example 1 is：Active chuck and solid Reservation, fixed chuck and fixed seat are equally connected by the way of grafting, and convex diameter 34, the both sides of fixed seat are provided in fixed seat It is provided with slot 33, fluted and convex block 32 is set on active chuck and fixed chuck, and groove is in an intermediate position, and convex block is in The convex diameter of both sides, fixed seat is inserted into groove, and convex block is inserted into slot.Connecting hole is provided in fixed seat, connecting hole Position is in the side of slot, and link slot, active chuck and fixed chuck and corresponding fixation is arranged on the same side of convex block After seat grafting, connecting shaft is inserted into out of connecting hole, and the escape groove in connecting shaft is with link slot phase separation connection active chuck or admittedly Clamp head.The connecting shaft of the present embodiment is L-shaped, and the operation portion of right angle bending is formed in the end position of connecting shaft.Remaining structure With reference to embodiment 1.

The above is only the preferred embodiment of the utility model, not imposed any restrictions to the utility model, every According to the utility model technical spirit to any simple modification, change and equivalent transformation made by above example, still fall within The protection domain of technical solutions of the utility model.

Claims (10)

1. a kind of quick change locking pliers, it is characterised in that including fixed handle and flexible handle, geometrical clamp is connected on fixed handle Portion is held, movable clamping part is connected on flexible handle, wherein stationary gripping part includes fixed seat, can be relatively fixed consolidating for a quick change Clamp head and the attachment device of connection, movable clamping part include fixed seat, the active chuck that can be relatively fixed a quick change and company The attachment device connect.

2. quick change locking pliers according to claim 1, it is characterised in that used between fixed chuck and corresponding fixed seat The mode of grafting connects；Between active chuck and corresponding fixed seat using with fixed chuck it is identical or different by the way of connect.

3. quick change locking pliers according to claim 2, it is characterised in that be provided with sliding slot in fixed seat, sliding slot, which has, to be opened Mouthful, it is provided with lug boss on fixed chuck and active chuck, lug boss is inserted into from the open end of sliding slot in sliding slot.

4. quick change locking pliers according to claim 2, it is characterised in that be provided with convex diameter and slot, geometrical clamp in fixed seat Fluted and convex block is set on head and active chuck, convex diameter is inserted into groove, and convex block is inserted into slot.

5. quick change locking pliers according to claim 1 or 2 or 3 or 4, it is characterised in that attachment device uses connecting shaft, even It is provided with escape groove in spindle, connecting hole is provided in fixed seat, link slot is provided on fixed chuck and active chuck, connects Axis is inserted into connecting hole and coordinates with link slot.

6. quick change locking pliers according to claim 5, it is characterised in that connecting shaft end is provided circumferentially about card slot, connection Shaft end is pierced by connecting hole and is blocked by clamp spring；The other end of connecting shaft is provided with operation portion.

7. quick change locking pliers according to claim 5, it is characterised in that be equipped with spring in connecting shaft, connecting shaft is in spring Effect is lower to keep connection.

8. quick change locking pliers according to claim 1 or 2 or 3 or 4, it is characterised in that fixed seat on flexible handle with it is solid Determine to be connected with elastic component between handle, support shelves are connected between flexible handle and fixed handle, is provided with and places restrictions on flexible handle Mechanism is placed restrictions in support shelves movement.

9. quick change locking pliers according to claim 8, it is characterised in that be provided with kidney slot on flexible handle, support the end of shelves Portion, which is connected with, places restrictions on axis, places restrictions on axis and kidney slot cooperatively forms and places restrictions on mechanism；Connecting rod is hinged in flexible handle, support shelves pass through limit Only axis is hinged with connecting rod.

10. quick change locking pliers according to claim 9, it is characterised in that in flexible handle rotation process, support shelves and connecting rod The line that the hinge joint for the hinge joint and flexible handle and fixed seat that the point being hinged can cross connecting rod and flexible handle is formed, Flexible handle, which is drawn close to fixed handle and crosses the line, just completes active chuck clamping, and flexible handle is far from fixed handle and gets over It crosses the line and just completes active chuck release.