CN203495790U - Automatically-adjustable locking pliers - Google Patents
Automatically-adjustable locking pliers Download PDFInfo
- Publication number
- CN203495790U CN203495790U CN201320586142.1U CN201320586142U CN203495790U CN 203495790 U CN203495790 U CN 203495790U CN 201320586142 U CN201320586142 U CN 201320586142U CN 203495790 U CN203495790 U CN 203495790U
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- hole
- teeth groove
- support plate
- ratchet
- groove piece
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Abstract
The utility model relates to automatically-adjustable locking pliers. The pliers comprise a fixed jaw, a movable jaw, a fixed handle and a movable handle, wherein the fixed jaw is arranged at the front end of the fixed handle, a nut is fixed at the rear end of the fixed handle, an adjusting bolt is connected with the nut, the movable jaw is connected with the front of the fixed handle through a rivet, the front end of the movable handle is fixedly connected with the rear end of the movable jaw, and the rear portion of the movable handle is connected with a lifting sheet through a rivet. The pliers are characterized in that the front of the movable handle is connected with the front end of a supporting plate through a rivet, the rear end of the supporting plate is connected with an adjusting mechanism which is arranged on the rear portion of the fixed handle, a tension spring is arranged at the rear end of the movable jaw between the fixed handle and the movable handle, the other end of the tension spring is connected with a rectangular ring which is arranged in a groove in the middle of the supporting plate, a guide block is arranged at the front end of the nut at the rear end of the fixed handle and connected with the front end of the adjusting bolt through a clamping spring, the guide block is connected with the adjusting mechanism, and the adjusting mechanism is driven to move when the adjusting bolt is rotated.
Description
Technical field
The utility model relates to the technical field of hand-operated tools locking pliers, specifically a kind of self-adjustable locking pliers.
Background technology
Existing traditional locking pliers, generally by regular jaw, moving jaw, fixed handle, flexible handle, support plate, lift sheet, extension spring, set screw, rivet and form.During use, operator will firmly be pressed on handle, makes jaw contact workpiece, then with defeating handle, workpiece is locked, and the retaining mechanism clamping work pieces of holding with a firm grip, opens retaining mechanism and unclamp workpiece, and in use, operator is very painstaking; Because the opening amount of jaw is fixed, when the different workpiece of clamping, in the time of need to constantly changing opening amount big or small, will be with manually regulating, and with the hands operate swivel bolt repeatedly, make jaw reach required opening amount and clamp and depart from workpiece, its troublesome poeration, wastes time and energy.
At present, on market, occurred can fast automatic clamping locking pliers.Be to adopt a cam lock holding mechanism, realize jaw self-locking; Be to adopt a voussoir retaining mechanism, realize jaw self-locking.These two kinds of structures all have auto-lock function, but its complex structure, cost is high, expensive, when the diameter of holding workpiece is large when a bit, need to firmly open handle and also with defeating handle, could lock object, make staff very painstaking when operation, use inconvenient.
Summary of the invention
The purpose of this utility model is in order to solve the deficiency of above-mentioned technology, provides a kind of reasonable in design, simple in structure, and cost is low, easily manufacture, self-adjustable locking pliers easy to use.
The technical scheme that the utility model adopts is: the technical solution used in the present invention is: a kind of self-adjustable locking pliers, comprise regular jaw, moving jaw, fixed handle, flexible handle, regular jaw is fixedly connected on the front end of fixed handle, the rear end of fixed handle is fixed with nut, adjusting bolt is connected with nut, moving jaw upper rear end is movably connected and is connect by the second rivet and fixed handle front portion, flexible handle front end is flexibly connected with moving jaw rear end lower by the first rivet, flexible handle rear portion is flexibly connected and is lifted sheet by the 4th rivet, it is characterized in that flexible handle is anterior by a 3rd rivet flexible connection front edge of board, one side of lower end, support plate middle part circular arc boss is provided with groove, straight-flanked ring is sleeved on support plate, one end of straight-flanked ring is embedded in the groove of support plate circular arc boss one side, support plate rear end is connected with governor motion, the rear portion of governor motion in fixed handle groove, on the moving jaw rear end between fixed handle and flexible handle, be provided with circular hole, the hook of extension spring one end is connected with circular hole, the hook connecting of the extension spring other end is connected on straight-flanked ring, after fixed handle, the front end of end nut is provided with rectangle guide pad, the front end of guide pad is provided with open slot, the rear end of guide pad is provided with circular hole, adjusting bolt front end connects guide pad by jump ring in circular hole, the front portion of guide pad is provided with pin shaft hole and is connected with governor motion by the second bearing pin, rotation adjusting bolt can drive governor motion to move,
Described governor motion comprises teeth groove piece, ratchet, release spring, Compress Spring, support plate, teeth groove piece is at the rear portion of fixed handle groove, rectangular through hole in the middle of teeth groove piece, on lower limb in rectangular through-hole, be provided with tooth bar, the rear portion of teeth groove piece is provided with pin shaft hole, teeth groove piece rear end is inlaid in the open slot of guide pad front end, there is the second pin shaft hole guide pad front portion, by the second pin shaft hole, the pin shaft hole through teeth groove piece rear portion is connected with the front portion of guide pad the second bearing pin, in the rectangular through-hole of ratchet on teeth groove piece, ratchet is provided with pin-and-hole, the bottom of ratchet one end is provided with sawtooth and tooth bar engagement, on the top of ratchet sawtooth, be provided with a circular hole, Compress Spring is installed in circular hole, other end top at ratchet is provided with platform, described support plate rear end is provided with open slot, prop up postlaminar part and be provided with the first bearing pin through hole, the left side of the first bearing pin through hole is provided with rectangular through-hole, rectangular through-hole is applied in the end of open slot, teeth groove piece front end is inlaid in the open slot of support plate rear end, and the first bearing pin on a postlaminar part is by the first bearing pin through hole through in the pin-and-hole on ratchet in teeth groove piece, and a postlaminar part is connected with teeth groove piece front end, in the rectangular through-hole of postlaminar part, be provided with release spring, the platform of the ratchet other end is in the bottom of release spring,
Rectangular through-hole center line and the horizontal angle of support plate of a described postlaminar part are 60 degree;
In described teeth groove piece, the profile of tooth angle of rectangular through-hole inner rack is 60 degree;
Described release both ends of the spring head outwardly convex, the end face of release spring is rectangular, and spring material is steel alloy;
Described straight-flanked ring one end is V-shaped, and V-arrangement end is connected with the hook of extension spring.
The utility model is reasonable in design, simple in structure, easy to manufacture, easy to use, one-hand operation, automatically the opening amount of quick adjustment jaw, and can discharge fast, by regulating the position of pawl teeth and tooth bar engagement, can realize automatic adjusting opening amount size, by adjusting bolt, drive teeth groove piece to move, the increasing of capable of regulating coupling mechanism force or reduce, it is simple to operate, time saving and energy saving, can realize fast clamping, unclamp workpiece, operating efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model, is also the normality figure while not stressing.
Fig. 2 is the schematic diagram of the utility model clamping work pieces.
Fig. 3 is the schematic diagram under the utility model open mode.
Fig. 4 is the schematic diagram of the utility model open mode lower regulating mechanism.
Fig. 5 is the schematic diagram of the utility model locking state lower regulating mechanism.
Fig. 6 is the structural representation of support plate.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the structural representation of teeth groove piece.
Fig. 9 is the structural representation of ratchet.
Figure 10 is the structural representation of release spring.
Figure 11 is the top view of Figure 10.
Figure 12 is the schematic diagram of straight-flanked ring.
Figure 13 is the structural representation of rectangle guide pad.
Mark in figure: 1. regular jaw, 2. moving jaw, 3. the first rivet, 4. the second rivet, 5. the 3rd rivet, 6. extension spring, 7. straight-flanked ring, 8. support plate, 9. fixed handle, 10. release spring, 11. first bearing pins, 12. Compress Springs, 13. ratchets, 14. teeth groove pieces, 15. second bearing pins, 16. guide pads, 17. nuts, 18. adjusting bolts, 19. jump rings, 20. lift sheet, 21. the 4th rivets, 22. flexible handles.
The specific embodiment
As Fig. 1, 2, 12, shown in 13: a kind of self-adjustable locking pliers, comprise regular jaw 1, moving jaw 2, fixed handle 9, flexible handle 22, regular jaw 1 is fixedly connected on the front end of fixed handle 22, the rear end of fixed handle 22 is fixed with nut 17, adjusting bolt 17 is connected with nut 17, moving jaw 2 upper rear end are movably connected and connect with fixed handle 9 front portions by the second rivet 4, flexible handle 22 front ends are flexibly connected with moving jaw 2 rear end lower by the first rivet 3, flexible handle 22 rear portions are flexibly connected and are lifted sheet 20 by the 4th rivet 21, anterior by the 3rd rivet 5 flexible connection support plate 8 front ends at flexible handle 22, one side of support plate 8 lower end, middle part circular arc boss is provided with groove, straight-flanked ring 7 is sleeved on support plate 8, one end of straight-flanked ring 7 is embedded in the groove of support plate 8 circular arc boss one sides, support plate 8 rear ends are connected with governor motion, the rear portion of governor motion in fixed handle 9 grooves, on moving jaw 2 rear ends between fixed handle 9 and flexible handle 22, be provided with circular hole, the hook of extension spring 6 one end is connected with circular hole, the hook connecting of the extension spring other end is connected on straight-flanked ring 7, front end at the rear end nut 17 of fixed handle 9 is provided with rectangle guide pad 16, the front end of guide pad 16 is provided with open slot, the rear end of guide pad 16 is provided with circular hole, adjusting bolt 18 front ends connect guide pad 16 by jump ring 19 in circular hole, the front portion of guide pad 16 is provided with pin shaft hole and is connected with governor motion by the second bearing pin 15, rotation adjusting bolt 18 can drive governor motion to move.
As Fig. 4, 5, 6, 7, 8, 9, 10, shown in 11, governor motion comprises teeth groove piece 14, ratchet 13, release spring 10, Compress Spring 12, support plate 8, teeth groove piece 14 is at the rear portion of fixed handle 9 grooves, rectangular through hole in the middle of teeth groove piece 14, on lower limb in rectangular through-hole, be provided with tooth bar, the rear portion of teeth groove piece 14 is provided with pin shaft hole, teeth groove piece 14 rear ends are inlaid in the open slot of guide pad 16 front ends, there is the second pin shaft hole guide pad 16 front portions, by the second pin shaft hole, the pin shaft hole through teeth groove piece 14 rear portions is connected with the front portion of guide pad 16 the second bearing pin 15, in the rectangular through-hole of ratchet 13 on teeth groove piece 14, ratchet 13 is provided with pin-and-hole, the bottom of ratchet 13 one end is provided with sawtooth and tooth bar engagement, on the top of ratchet 13 sawtooth, be provided with a circular hole, Compress Spring 12 is installed in circular hole, other end top at ratchet 13 is provided with platform, described support plate 8 rear ends are provided with open slot, support plate 8 rear portions are provided with the first bearing pin through hole, the left side of the first bearing pin through hole is provided with rectangular through-hole, rectangular through-hole is applied in the end of open slot, teeth groove piece 14 front ends are inlaid in the open slot of support plate 8 rear ends, the first bearing pin 11 on support plate 8 rear portions passes in the pin-and-hole on the interior ratchet 13 of teeth groove piece 14 by the first bearing pin through hole, support plate 8 rear portions are connected with teeth groove piece 14 front ends, in the rectangular through-hole at support plate 8 rear portions, be provided with release spring 10, the platform of ratchet 13 left ends is in the bottom of release spring 10, be subject to the extruding application of force of release spring 10, the platform of ratchet 13 right-hand members upwards pushes Compress Spring 12, the sawtooth of ratchet 13 and tooth bar engagement locking.
As shown in Figure 6, Figure 7, the rectangular through-hole center line at support plate 8 rear portions and the horizontal angle of support plate are 60 degree.As shown in Figure 3, when opening monkey wrench, support plate 8 rotates counterclockwise with flexible handle, the platform of release spring 10 application of force ratchet left ends in rectangular through-hole, and Compress Spring 12 is squeezed, and makes the sawtooth on ratchet depart from tooth bar in released state, as shown in Figure 4; When closed monkey wrench, support plate 8 clockwise rotates with flexible handle, and the release spring 10 in rectangular through-hole is squeezed, and Compress Spring 12 application of forces on ratchet right-hand member platform mesh in locking state, sawtooth and tooth bar on ratchet as shown in Figure 5.
As shown in Figure 8, in teeth groove piece, the profile of tooth angle of rectangular through-hole inner rack is 60 degree, and tooth portion will do high frequency heat and process, to guarantee the intensity of tooth portion.The number of teeth in teeth groove piece is many, can improve the precision of coupling mechanism force, and the scope of clamping is large, and the number of teeth of relatively large specification is many, and the number of teeth of small dimension is few; The number of teeth that precision prescribed is high is many, and the number of teeth that precision prescribed is low is few.
As shown in Figure 10,11, release both ends of the spring head outwardly convex, the end face of release spring is rectangular, and release spring is that steel alloy is made;
As shown in figure 12, straight-flanked ring 7 one end are V-shaped, and V-arrangement end is connected with the hook of extension spring, extension spring and straight-flanked ring are when locking pliers is opened, can pull open moving jaw enlarged opening amount, draw support plate 8 to drive ratchet 13 to move to the interior left end of teeth groove piece 14, in order to the course of work clamping simultaneously.
As shown in Figure 3, fixed handle 9 and flexible handle 22 open modes for locking pliers, now the angle of support plate 8 and the horizontal center line of teeth groove piece 14 is that 38-42 is when spend, release spring 10 is fixed in the rectangular through-hole of support plate 8, it rotates along with the rotation of support plate, while opening, support plate 8 rotates counterclockwise with flexible handle, release spring 10 also rotates counterclockwise around axle 11, contact with platform the application of force with ratchet 13, ratchet 13 overcomes the elastic force of Compress Spring 12 around bearing pin 11 rotations under the pressure of release spring 10, and the tooth bar in the sawtooth on ratchet and teeth groove piece is thrown off.When support plate 8 moves backward, just can drive ratchet 13 to move to the rear portion of teeth groove piece 14 by bearing pin 11.
As shown in Figure 4, support plate 8 is subject to the effect of flexible handle 22 and rotates simultaneously in the process of motion backward, before support plate 8 turns to and becomes 15 degree angles with the horizontal center line of teeth groove piece 14, release spring 10 on the platform of the application of force and ratchet 13, remains on and tooth bar released state the sawtooth of ratchet 13 all the time.When support plate 8 turns to angle with the horizontal center line of teeth groove piece 14, be that 13-17 is when spend, release spring 10 is separated with ratchet 13, under the effect of Compress Spring 12, the tooth bar engagement of the sawtooth of ratchet 13 and teeth groove piece 14, the now further rotation of support plate 8, completes locking duty jointly with flexible handle 22.
Straight-flanked ring 7 in described is sleeved on support plate, straight-flanked ring one end is V-shaped, and V-arrangement end is connected with the hook of extension spring, after in the time of guaranteeing to open locking pliers, support plate 8 rotates, straight-flanked ring 7 can be transitioned into high end position from the lower position of support plate 8 smoothly, makes the direction of pull of extension spring 6 be in all the time rectilinear direction; After same locking pliers closure, straight-flanked ring 7 can be transitioned into lower position from the high end position of support plate 8 smoothly, the direction of pull that can guarantee extension spring 6 is rectilinear direction, can avoid like this extension spring 6 on support plate 8, to produce the component of different directions, and then affect part in the governor motion force-bearing situation in motion process, affect thus the function of whole mechanism.
During operation holding workpiece, first lifting sheet 20, open with flexible handle 22, moving jaw 2 opens under extension spring 6 and straight-flanked ring 7 act on, regular jaw 1 and the big or small size that is applicable to workpiece of moving jaw 2 opening amounts, after contact workpiece, hold flexible handle 22, by movable 22 handle front end the first rivets 3, connect moving jaw 2 closures; Flexible handle 22 middle parts connect support plate 8 front ends by the 3rd rivet 5, pull flexible handle 22 to drive that support plate 8 rear ends are relative with governor motion moves, and according to governor motion principle, start an operation cycle, complete the clamping to workpiece, as shown in Figure 2.
If the size of piece-holder power is needed to adjust, can turn-knob adjusting bolt 18, adjusting bolt 18 is connected by jump ring 19 with guide pad 16, teeth groove piece 14 is to be connected by bearing pin 15 with guide pad 16, teeth groove piece 14 can relatively rotate with guide pad 16, guide pad 16 and fixed handle 9 matched in clearance, relative sliding, guide pad 16 can guarantee that teeth groove piece 14 there will not be the phenomenons such as inclination, unbalance loading in motion and loading process.Rotation adjusting bolt can drive guide pad 16 and teeth groove piece 14 to move forward and backward, thereby realizes the adjustment to chucking power.
During the different large small workpiece of clamping, the size of opening amount is by regulating the sawtooth on ratchet to realize from the different positions of engagement of teeth groove piece upper rack.The engagement of the sawtooth on ratchet and teeth groove piece upper rack, separate and be that release spring on support plate and the Compress Spring on ratchet interact to realize by being contained in.
The utility model is simple in structure, easy to manufacture, easy to use, one-hand operation, and it is simple to operate, time saving and energy saving, can realize fast clamping, unclamp workpiece, and operating efficiency is high.
Claims (6)
1. a self-adjustable locking pliers, comprise regular jaw, moving jaw, fixed handle, flexible handle, regular jaw is fixedly connected on the front end of fixed handle, the rear end of fixed handle is fixed with nut, adjusting bolt is connected with nut, moving jaw upper rear end is movably connected and is connect by the second rivet and fixed handle front portion, flexible handle front end is flexibly connected with moving jaw rear end lower by the first rivet, flexible handle rear portion is flexibly connected and is lifted sheet by the 4th rivet, it is characterized in that flexible handle is anterior by a 3rd rivet flexible connection front edge of board, one side of lower end, support plate middle part circular arc boss is provided with groove, straight-flanked ring is sleeved on support plate, one end of straight-flanked ring is embedded in the groove of support plate circular arc boss one side, support plate rear end is connected with governor motion, the rear portion of governor motion in fixed handle groove, on the moving jaw rear end between fixed handle and flexible handle, be provided with circular hole, the hook of extension spring one end is connected with circular hole, the hook connecting of the extension spring other end is connected on straight-flanked ring, after fixed handle, the front end of end nut is provided with rectangle guide pad, the front end of guide pad is provided with open slot, the rear end of guide pad is provided with circular hole, adjusting bolt front end connects guide pad by jump ring in circular hole, the front portion of guide pad is provided with pin shaft hole and is connected with governor motion by the second bearing pin, rotation adjusting bolt can drive governor motion to move.
2. self-adjustable locking pliers according to claim 1, it is characterized in that: described governor motion comprises teeth groove piece, ratchet, release spring, Compress Spring, support plate, teeth groove piece is at the rear portion of fixed handle groove, rectangular through hole in the middle of teeth groove piece, on lower limb in rectangular through-hole, be provided with tooth bar, the rear portion of teeth groove piece is provided with pin shaft hole, teeth groove piece rear end is inlaid in the open slot of guide pad front end, there is the second pin shaft hole guide pad front portion, by the second pin shaft hole, the pin shaft hole through teeth groove piece rear portion is connected with the front portion of guide pad the second bearing pin, in the rectangular through-hole of ratchet on teeth groove piece, ratchet is provided with pin-and-hole, the bottom of ratchet one end is provided with sawtooth and tooth bar engagement, on the top of ratchet sawtooth, be provided with a circular hole, Compress Spring is installed in circular hole, other end top at ratchet is provided with platform, described support plate rear end is provided with open slot, prop up postlaminar part and be provided with the first bearing pin through hole, the left side of the first bearing pin through hole is provided with rectangular through-hole, rectangular through-hole is applied in the end of open slot, teeth groove piece front end is inlaid in the open slot of support plate rear end, and the first bearing pin on a postlaminar part is by the first bearing pin through hole through in the pin-and-hole on ratchet in teeth groove piece, and a postlaminar part is connected with teeth groove piece front end, in the rectangular through-hole of postlaminar part, be provided with release spring, the platform of the ratchet other end is in the bottom of release spring.
3. self-adjustable locking pliers according to claim 1 and 2, is characterized in that: rectangular through-hole center line and the horizontal angle of support plate of a described postlaminar part are 60 degree.
4. self-adjustable locking pliers according to claim 1 and 2, is characterized in that: in described teeth groove piece, the profile of tooth angle of rectangular through-hole inner rack is 60 degree.
5. self-adjustable locking pliers according to claim 1 and 2, is characterized in that: described release both ends of the spring head outwardly convex, the end face of release spring is rectangular.
6. self-adjustable locking pliers according to claim 1 and 2, is characterized in that: described straight-flanked ring one end is V-shaped, and V-arrangement end is connected with the hook of extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586142.1U CN203495790U (en) | 2013-09-23 | 2013-09-23 | Automatically-adjustable locking pliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586142.1U CN203495790U (en) | 2013-09-23 | 2013-09-23 | Automatically-adjustable locking pliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203495790U true CN203495790U (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320586142.1U Withdrawn - After Issue CN203495790U (en) | 2013-09-23 | 2013-09-23 | Automatically-adjustable locking pliers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203495790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481217A (en) * | 2013-09-23 | 2014-01-01 | 文登威力高档工具有限公司 | Automatic adjustable locking pliers |
-
2013
- 2013-09-23 CN CN201320586142.1U patent/CN203495790U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481217A (en) * | 2013-09-23 | 2014-01-01 | 文登威力高档工具有限公司 | Automatic adjustable locking pliers |
| CN103481217B (en) * | 2013-09-23 | 2015-07-08 | 威海市威力高档工具有限公司 | Automatic adjustable locking pliers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20150708 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20150708 |
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| RGAV | Abandon patent right to avoid regrant |