CN209007389U

CN209007389U - The locking of locking pliers and relieving mechanism

Info

Publication number: CN209007389U
Application number: CN201821595352.6U
Authority: CN
Inventors: 赖四正
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2019-06-21
Anticipated expiration: 2028-09-28

Abstract

The utility model relates to a kind of locking of locking pliers and relieving mechanism, locking pliers be the chief component of lock state or release conditions first is that locking level whether can move freely with keep locking pliers can fixed handle activity；The automatically moving property of locking level or to be braked controlled by a locking and relieving mechanism, the locking and relieving mechanism mainly discharges locking level with the opening and closing activity of several positioning balls or clip lives locking level in the present invention；When positioning ball clip locking level, locking pliers are lock state；When positioning ball leaves locking level, locking pliers are release conditions.

Description

The locking of locking pliers and relieving mechanism

Technical field

The utility model relates to the locking of locking pliers and relieving mechanisms.

Background technique

Jaw type hand-operated tools with locking mechanism is claimed to be locking pliers.Locking pliers generally include fixed handle and its end The fixation jaw claw in portion.Movable jaw claw and can fixed handle can be pivoted relative to fixed handle, to open and close jaw claw.Operation locking When pincers, can fixed handle relative to fixed handle be closed, to be closed jaw claw and firmly grip workpiece between them.Then Handle is tightly pressed, so that jaw claw is locked on workpiece by the locking mechanism on handle, locking pliers will be firmly held Lock into place grasps workpiece, applies continuous power without user.The jaw claw for unclamping lock into place must pass through one The mechanism on handle is set.

Utility model content

The purpose of this utility model is to provide a kind of improved locking pliers locking and relieving mechanism.

In order to achieve the above purposes, the technical solution adopted by the utility model is:

A kind of locking of locking pliers and relieving mechanism, the locking pliers include a fixed jaw of a fixed handle He its end Pawl, a manual handle and the movable jaw claw for being connected to its end；The first end of one intermediate bar is connected to this movably with pivoting point Handle, the second end of the intermediate bar are connected at a bias spring and a connecting rod in the fixed handle；One locking and machine for releasing Structure is set to the end of the fixed handle, it is characterised in that:

The locking and relieving mechanism include:

Sleeve, the casing have pass through aperture；

One fixes sleeve, the fixes sleeve have the jaw claw end for being opposite in the fixation jaw claw and are opposite in the fixed handle The one tail end at tail end；The fixes sleeve wears a locking level that can be moved back and forth along the fixes sleeve center, and locking level It is connect with the connecting rod, locking lever has a front end and a rear end, and end forms that a diameter is gradually small to incline backward by front end Oblique ring portion；

Several keyways, inner wall and the circular locking level set on the fixes sleeve；Each keyway has an inclination cell wall, should Inclination cell wall is tilted from the jaw claw end of the fixes sleeve to the tail end；

Several positioning balls are respectively arranged in each keyway and can slide along the inclination cell wall；

One spring, inside the jaw claw end of the fixes sleeve, one end of the ejection positioning ball；

One sliding sleeve ring can be moved back and forth along the fixes sleeve center, be pushed away inside the jaw claw end of the fixes sleeve Push up the other end of the positioning ball；

And a release lever, which is connected to a pivoting point, which includes one pressing end and one and pushing End, this presses end and protrudes out the fixed handle, which, which protrudes into the fixed handle and push away, touches the sliding sleeve ring.

Wherein, the spring and respectively between the positioning ball include a pushing block.

By above-mentioned construction, by the thrust of the spring, which slides to the tail end of the fixes sleeve, and can It with clip on locking level, move the locking level can not, which is lock state；That depresses the release lever presses end, The positioning ball will be pushed to the jaw claw end of the fixes sleeve by the sliding sleeve ring by the promote-side of the release lever, so that the positioning Steel ball can be detached from the locking level, and the locking level is removable, which is unlocked state.

Detailed description of the invention

Fig. 1 is the utility model locking pliers side view, and jaw is in an open position.

Fig. 2 is the utility model locking pliers side view, and jaw is in closure and latched position.

Fig. 3 is the stereogram exploded view of the utility model locking and relieving mechanism.

Fig. 4 is one of combination section and action schematic diagram of the utility model locking and relieving mechanism.

Fig. 5 be the utility model lock and relieving mechanism combination section and action schematic diagram two.

Fig. 6 is the VI-VI sectional view of Fig. 4.

Description of symbols: 10- fixed handle；11- fixes jaw claw；15- can fixed handle；The movable jaw claw of 16-；20- locking And relieving mechanism；21- fixes sleeve；211- jaw claw end；212- tail end；22- locking level；The front end 221-；The rear end 222-； 223 inclination ring portions；23- keyway；231- tilts cell wall；24- positioning ball；25- spring；26- pushing block；27- sliding sleeve ring；28- is released Put bar；201- casing；281- pivoting point；282- presses end；The promote-side 283-；31- connecting rod；32- bias spring；33- intermediate bar； The first rod end of 331-；The second rod end of 332-；333- pivoting point；34- connector.

Specific embodiment

For ease of illustration of the utility model central idea described in one column of utility model content, hereby with specific embodiment Expression.In embodiment each component ratio, size and its amount of movement and deflection be in be conducive to explanation ratio and size draw, and Non- actual size, nor to limit the utility model.

As shown in Figure 1, Figure 2, the locking pliers appearance and structure of general type, the fixation jaw claw including fixed handle 10 He its end 11, movable jaw claw 16 and can fixed handle 15 can be pivoted relative to fixed handle 10, to open and close movable jaw claw 16；Operation lock When clamping surely, can fixed handle 15 be closed relative to fixed handle 10, to be closed two jaw claws and firmly grip workpiece at them Between.

Locking and relieving mechanism 20 are set to the tail end of fixed handle 10, which includes a release lever 28 with pivoting point 281 are connected to fixed handle 10.The lock state and unlocked state of the mechanism 20 control locking pliers.

Such as Fig. 2 to Fig. 6, which includes:

Sleeve 201, the casing 201 have pass through aperture 202.

One fixes sleeve 21, fixes sleeve 21 have the jaw claw end 211 for being opposite in the fixation jaw claw 11 and are opposite in this The one tail end 212 at 10 tail of fixed handle end；The center of the fixes sleeve 21 wears a locking level 22 being reciprocally moveable, and locks Fixed pole 22 is connect with the connecting rod 31, and the another locking lever 22 has a front end 221 and rear end 222, and backward by front end 221 End 222 forms a diameter gradually small inclination ring portion 223；And the inner wall surrounding of the fixes sleeve 21 locking level 22 sets several keys Slot 23, keyway 23 have inclination cell wall 231, which is last from the jaw claw end 211 of the fixes sleeve 21 to the tail 212 inclination of end；And slided in each keyway 23 and set a positioning ball 24, positioning ball 24 lies in sliding in the keyway wall 231 of keyway 23 It is dynamic.A spring 25 and a pushing block 26 are set inside the jaw claw end 211 of fixes sleeve 21, the one of 26 ejection of the pushing block positioning ball 24 End；The tail end 212 of fixes sleeve 21 is fixed with a sliding sleeve ring 27, so that the sliding sleeve ring 27 can be with ejection positioning ball 24 The other end.

The release lever 28 presses end 282 and a promote-side 283 including one, presses end 282 and protrudes out the fixed handle 10, pushes away Moved end 283 is protruded into fixed handle 10 and pushes away touching sliding sleeve ring 27.

The locking level 22 stretch through out the 21 jaw claw end 211 of fixes sleeve rod end connection one be set to the fixed handle 10 in Connecting rod 31, the connecting rod 31 are connected to a bias spring 32 being set in the fixed handle 10, and locking level 22 is opposite in fixed jaw End also contact the first rod end 331 of an intermediate bar 33, the second rod end 332 of the intermediate bar 33 can by a pivoting point 333 Being connected to for rotation can fixed handle 15.First rod end 331 of intermediate bar 33 is also connected to the connecting rod 31 via a connection piece 34 With the bias spring 32.

Such as Fig. 1 to Fig. 5, when by locking pliers locking folder clamping of workpieces, release lever 28, the promotion of the release lever 28 should be first pushed End 283, which pushes away, touches the sliding sleeve ring 27, which pushes the positioning ball 24, and several positioning balls 24 are toward the side of compressed spring 25 So that positioning ball 24 is no longer pushed up tug locking level 22 to movement, and because of the guiding of inclination cell wall 231, and locking level 22 is made to exist Have mobile freedom in fixes sleeve 21, can fixed handle 15 can be relative to the activity of fixed handle 10；It then can fixed handle 15 It is closed relative to fixed handle 10 to be closed fixed jaw claw 11 and movable jaw claw 16, the intermediate bar can be affected when the movement of fixed handle 15 33, the first end of intermediate bar 33 is mobile toward the direction for compressing the bias spring 32, which pulls the locking level 22 to move simultaneously It is dynamic.After locking pliers clamp workpiece, the release lever 28 is decontroled, the elastic force of the spring 25 acts on the positioning ball 24, because inclining The guiding of chute wall 231 and make positioning ball 24 can be with clip on locking level 22 and the inclination cell wall 231 of fixes sleeve 21, more Importantly, when such locking pliers after clamping workpiece in actuation, while will receive clamp workpiece reaction force, at this time Effect be greater than active force of original 24 clip of positioning ball on the inclination cell wall 231 of locking level 22 and fixes sleeve 21 greatly , but because the diameter of inclination ring portion 223 set by locking lever 22 is gradually big by 222 forward end 221 of rear end, clip Power can be bigger, so can achieve the firm of optimal clip work, to brake the locking level 22, locking pliers are maintained at Clamp the lock state of workpiece, user does not need to apply again continuous power in can fixed handle 15.

Conversely, locking pliers are discharged from lock state, need to press the release lever 28 presses end 282, with its promote-side 283 push away and touch the sliding sleeve ring 27, which pushes the positioning ball 24, and several positioning balls 24 are toward the direction of compressed spring 25 It is mobile, and so that positioning ball 24 is determined the inclination cell wall 231 of sleeve 21 into set and is locked because of the guiding of inclination cell wall 231 Between the inclination ring portion 223 of bar 22, distance therebetween for accommodating positioning ball 24 and makes its moving freely property, therefore similarly Locking level 22 is set to have mobile freedom in fixes sleeve 21；At this point, bias spring 32 releases energy, pushes the connector 34, is somebody's turn to do Connecting rod 31 and the locking level 22, and keep intermediate bar 33 mobile, can fixed handle 15 toward pushing away fixed handle 10, fixed jaw claw 11 It is opened with movable jaw claw 16 and unclamps workpiece, locking pliers are in unlocked state.

Locking pliers decontrol the release lever 28 when being in unlocked state, as previously mentioned, the positioning ball 24 understands again clip in the lock Between fixed pole 22 and the keyway 23 of fixes sleeve 21, so that locking pliers are maintained at unlocked state, such benefit is open can Fixed handle 15 will not shake.

Claims

1. locking and the relieving mechanism of a kind of locking pliers, which includes a fixed jaw claw of a fixed handle with its end, One manual handle and the movable jaw claw for being connected to its end；The first end of one intermediate bar is connected to this with pivoting point and can start Handle, the second end of the intermediate bar are connected at a bias spring and a connecting rod in the fixed handle；One locking and relieving mechanism Set on the end of the fixed handle, it is characterised in that:

The locking and relieving mechanism include:

Sleeve, the casing have pass through aperture；

One fixes sleeve, the fixes sleeve have the jaw claw end for being opposite in the fixation jaw claw and are opposite in the fixed handle tail end A tail end；The fixes sleeve wear one can along the fixes sleeve center move back and forth locking level, and locking level with should Connecting rod connection, locking lever has a front end and rear end, and end forms a diameter gradually small inclined ring backward by front end Portion；

Several keyways, inner wall and the circular locking level set on the fixes sleeve；Each keyway has an inclination cell wall, the inclination Cell wall is tilted from the jaw claw end of the fixes sleeve to the tail end；

One sliding sleeve ring can move back and forth inside the jaw claw end of the fixes sleeve along the fixes sleeve center, and ejection should The other end of positioning ball；

And a release lever, which is connected to a pivoting point, which includes one pressing end and a promote-side, should It presses end and protrudes out the fixed handle, which, which protrudes into the fixed handle and push away, touches the sliding sleeve ring.

2. locking and the relieving mechanism of locking pliers as described in claim 1, which is characterized in that the spring and each positioning ball it Between include a pushing block.