CN101249641A - Improved locking pliers - Google Patents
Improved locking pliers Download PDFInfo
- Publication number
- CN101249641A CN101249641A CNA2008100609137A CN200810060913A CN101249641A CN 101249641 A CN101249641 A CN 101249641A CN A2008100609137 A CNA2008100609137 A CN A2008100609137A CN 200810060913 A CN200810060913 A CN 200810060913A CN 101249641 A CN101249641 A CN 101249641A
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- CN
- China
- Prior art keywords
- guide
- clamper body
- main clamper
- locating part
- connecting rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention provides an improved powerful clamp, belonging to the field of mechanical technology, solving the problem of unaesthetic and bad stability of use of the prior powerful clamp, comprising a main clamp body and a secondary clamp body, wherein the front end of the main body is fixedly connected with a first nip and hinged with a second nip corresponding to the first nip; the other side of the second nip is hinged with the front end of the secondary clamp body. A connecting rod, a positive stop part and a guiding part are arranged between the main clamp body and the secondary clamp body. One end of the connecting rod hinges with the secondary clamp body while the other end of the connecting rod hinges with one end of the positive stop part. The other end of the positive stop part is hinged with the guiding part. A guiding mechanism which enables the translation of guiding part along the main clamp body is arranged between the guiding part and the main clamp body; the junction of the connecting rod and the positive stop part is provided with a regulating mechanism which regulates the swinging scope of the positive stop part. The main clamp body has a stopper which contacts with the positive stop part. The powerful clamp has the advantages of compact structure and high stability.
Description
Technical field
The invention belongs to field of mechanical technique, relate to the locking pliers of a kind of locking pliers, particularly a kind of improvement.
Background technology
Cutting pliers, pipe vice, spanner etc. are current indispensable instruments, but they can only be applicable to working method separately, so limitation is bigger.For this reason, people have designed a kind of locking pliers, and the clamping force of locking pliers jaw can be regulated, so it can replace uses such as cutting pliers, pipe vice and spanner, make that its applicability is wider.
For example, " a kind of long handle locking pliers " that its publication number of Chinese patent literature " CN2568363Y " provides, the adjusting of this locking pliers realizes that by nut and screw rod screw rod is located at and is decided in the binding clip, and screw rod can move along its axis.Nut sleeve on above-mentioned screw rod and its part stretch out and decide binding clip, nut is an axial location in deciding on the binding clip, because nut can not move, therefore, the screw rod above-mentioned along with the rotation of nut will move in the rotating nut process.Screw rod after moving just can be controlled the clamping force of locking pliers jaw.
Though above-mentioned locking pliers can be regulated its jaw clamping force, because the binding clip outside is decided in being exposed at of nut.Therefore, profile is not attractive in appearance.And in the process of using locking pliers, might make the nut reversing, thereby influence the normal use of locking pliers.Therefore, its stability in use is also poor.
Summary of the invention
The objective of the invention is at existing in prior technology the problems referred to above, the locking pliers of a kind of compact conformation, improvement that stability in use is high is provided.
Purpose of the present invention can realize by following technical proposal: a kind of locking pliers of improvement, comprise a main clamper body and secondary caliper, the front end of main clamper body is fixed with jaw one, the front end of main clamper body also is hinged with and the corresponding jaw two in jaw one position, the opposite side of jaw two is articulated in secondary caliper front end, it is characterized in that, also be provided with connecting rod between described main clamper body and the secondary caliper, locating part and guide, one end and the secondary caliper of connecting rod are hinged, one end of the other end of connecting rod and locating part is hinged, the other end and the guide of locating part are hinged, be provided with between guide and the main clamper body and can make the guiding mechanism of guide along the main clamper body translation, the hinged place of connecting rod and locating part is provided with the governor motion that can regulate the locating part amplitude of fluctuation, also has the retaining head that can contact with locating part on the described main clamper body.
In the locking pliers of this improvement, push main clamper body and secondary caliper, drive the locating part swing in the connecting rod swing process, locating part is rocked to certain amplitude and just can contacts with the retaining head, by the retaining head locating part is stopped, and that is to say locating part is located.At this moment, jaw one and jaw two closures, thus can will need the object of clamping to clamp.In the locating part swing process, can promote guide and move a segment distance, under the effect of guiding mechanism, make guide to move stably, simultaneously, make guide can not come off from main clamper body.
When needs change the clamping force of jaw one and jaw two, amplitude of fluctuation by governor motion control locating part that is to say, when jaw one and jaw two are closed once more, variation has taken place in the position of connecting rod, thereby has reached the purpose of control jaw one with jaw two clamping force sizes.
In the locking pliers of above-mentioned improvement, described guiding mechanism is the guide post that is fixed on the main clamper body, and above-mentioned guide is placed on the guide post, and is provided with back-moving spring between guide and main clamper body.Guide can move along guide post, makes jaw one and jaw two open the back guide simultaneously under the effect of back-moving spring and can return back to original position.
As another situation, in the locking pliers of above-mentioned improvement, described guide frame is the guide rail of being located on the main clamper body, and above-mentioned guide is connected on the guide rail, and is provided with back-moving spring between guide and main clamper body.Guide can move along guide rail, makes jaw one and jaw two open the back guide simultaneously under the effect of back-moving spring and can return back to original position.
In the locking pliers of above-mentioned improvement, a side of described locating part is the working face of arc, and opposite side has block seat, and described governor motion is that adjustment screw can contact with above-mentioned block seat by being threadedly connected to the adjustment screw on the connecting rod.When jaw one and jaw two closures, adjustment screw contacts with block seat.The turn adjustment screw just can make screw stretch out or withdraw, and just can control the amplitude of fluctuation of locating part accordingly.
In the locking pliers of above-mentioned improvement, be with spring on the described adjustment screw, the two ends of spring act on respectively on adjustment screw and the connecting rod.Under the elastic force effect of spring, it is more firm to make that adjustment screw is connected with connecting rod, can not become flexible easily.
In the locking pliers of above-mentioned improvement, has the transition arc that several its arc radius increase successively on the working face of described locating part.The circular arc place that every section radius differs is resisted against on the retaining head, just makes locating part be in different amplitudes of fluctuation.
In the locking pliers of above-mentioned improvement, have groove on the described main clamper body, above-mentioned guide post, spring and guide all are positioned at groove.By such structure, make that the main clamper body profile is clean and tidy.
In the locking pliers of above-mentioned improvement, have in the groove of described main clamper body the retaining that can stop the guide post two ends respectively along one and retaining along two, the rear end of main clamper body has draw-in groove, above-mentioned retaining is tabular and it is connected in the draw-in groove along two.As can be seen, retaining can take out from draw-in groove along two, that is to say in the time of guide post etc. need being taken out, and will keep off along two taking-ups getting final product earlier.
Compared with prior art, the governor motion that the locking pliers of this improvement owing to be used to is regulated jaw one and jaw two clamping forces is arranged between main clamper body and the secondary caliper, particularly jaw one is in main clamper body and the secondary caliper fully with jaw two closed back governor motions, therefore, in use adjustment structure is difficult for being touched, and makes that the stability in use of this locking pliers is higher.Simultaneously, such structure makes that also this locking pliers profile is succinct, compact conformation.
In addition, because retaining along two detachable, therefore is easier to operation by such structure ratio in assembling or the unloading process.
Description of drawings
Fig. 1 is the status architecture schematic diagram of its jaw place of locking pliers of this improvement when opening.
Fig. 2 is the status architecture schematic diagram of its jaw place of locking pliers of this improvement when closed.
Fig. 3 is the sectional structure schematic diagram at main clamper body place in the locking pliers of this improvement.
Among the figure, 1, main clamper body; 1a, groove; 1b, retaining are along one; 1c, draw-in groove; 2, secondary caliper; 3, jaw one; 4, jaw two; 5, connecting rod; 6, guide; 7, locating part; 7a, working face; 7b, block seat; 8, retaining is along two; 9, back-moving spring; 10, adjustment screw; 11, spring; 12, guide post; 12a, retaining head.
The specific embodiment
As depicted in figs. 1 and 2, the locking pliers of this improvement is made up of main clamper body 1, secondary caliper 2, jaw 1, jaw 24, connecting rod 5, locating part 7 and guide 6 etc.
Have groove 1a on the main clamper body 1, this groove 1a is that sheet sheet material is one-time formed by punching press.In groove 1a, be provided with guide post 12, also be provided with at groove 1a place retaining along a 1b and retaining along 28, retaining along a 1b and retaining along 28 two ends that lay respectively at guide post 6.Retaining is along 28 rear end that are positioned at main clamper body 1, and the rear end of main clamper body 1 is provided with draw-in groove 1c, and retaining inserts in the draw-in groove 1c along 28.On guide post 12, be with back-moving spring 9, the two ends of back-moving spring 9 act on respectively retaining along a 1b and the retaining along on 28.Certainly, according to actual conditions, also can adopt the guide rail on the main clamper body 1 to replace guide post 12.
In addition, have groove 1a on the main clamper body 1, this groove 1a is that sheet metal sheet material is one-time formed by punching press.Above-mentioned guide post 6, spring 11 and guide 6 all are positioned at groove 1a.
As shown in Figure 3, connecting rod 5 and locating part 7 are located between guide 6 and the secondary caliper 2, and an end of connecting rod 5 is articulated on the secondary caliper 2, and the other end of connecting rod 5 and locating part 7 are hinged, and the other end of locating part 7 and guide 6 are hinged.The sidepiece of guide post 12 has a retaining 12a, after jaw 1 and jaw 24 closures, and connecting rod 5 swings, and locating part 7 is contacted with a retaining 6a, that is to say by a retaining 6a locating part 7 is stopped.In the present embodiment, the hardness of locating part 7 is slightly larger than the hardness at guide post 6 a retaining 6a place.
Be connected with adjustment screw 10 on the connecting rod 5, be with spring 11 on adjustment screw 10, the two ends of spring 11 act on respectively on adjustment screw 10 and the connecting rod 5.
As shown in Figure 3, a side of locating part 7 is the working face 7a of arc, and this working face 7a can contact with an above-mentioned retaining 12a, and the opposite side of locating part 7 has block seat 7b, and above-mentioned adjustment screw 10 can contact with block seat 7b.In the present embodiment, working face 7a has the circular arc that three sections its radiuses increase successively.
After pushing main clamper body 1 and secondary caliper 2 and making jaw 1 and jaw 24 closures, connecting rod 5 swings make adjustment screw 10 be resisted against on the block seat 7b of locating part 7, promote locating part 7 swing certain amplitude, and the circular arc portion on the locating part 7 is resisted against on the retaining 12a.This moment, guide 6 slow astern segment distances because guide 6 can not be deviate from from main clamper body 1, were so just fixed locating part 7 firmly.Just can will need the object of clamping to clamp firmly by jaw 1 and jaw 24.
When needing to regulate the clamping force at jaw 1 and jaw 24 places, make secondary caliper 2 be in open state with main clamper body 1, turn adjustment screw then 10 gets final product.That is to say that when jaw 1 and jaw 24 are closed once more, because variation has taken place in the position of adjustment screw 10, thereby changed the amplitude of fluctuation of locating part 7, the position of connecting rod 5 is also corresponding, and variation has taken place, thereby reached the purpose that jaw place clamping force changes.
Simultaneously, loosening for adjustment screw 10 is difficult for, on adjustment screw 10, be with spring 11, the two ends of spring 11 act on respectively on adjustment screw 10 and the connecting rod 5, under the elastic force effect of spring 11 adjustment screw 10 are held firmly, thereby are difficult for loosening.
Claims (8)
1. the locking pliers of an improvement, comprise a main clamper body (1) and secondary caliper (2), the front end of main clamper body (1) is fixed with jaw one (3), the front end of main clamper body (1) also is hinged with and the corresponding jaw two (4) in jaw one (3) position, the opposite side of jaw two (4) is articulated in secondary caliper (2) front end, it is characterized in that, also be provided with connecting rod (5) between described main clamper body (1) and the secondary caliper (2), locating part (7) and guide (6), one end of connecting rod (5) and secondary caliper (2) are hinged, one end of the other end of connecting rod (5) and locating part (7) is hinged, the other end of locating part (7) and guide (6) are hinged, be provided with between guide (6) and the main clamper body (1) and can make the guiding mechanism of guide (6) along main clamper body (1) translation, connecting rod (5) is provided with the governor motion that can regulate locating part (7) amplitude of fluctuation with the hinged place of locating part (7), also has the retaining head (12a) that can contact with locating part (7) on the described main clamper body (1).
2. the locking pliers of improvement according to claim 1, it is characterized in that, described guiding mechanism is for being fixed on the guide post (12) on the main clamper body (1), and above-mentioned guide (6) is placed on the guide post (12), and is provided with back-moving spring (9) between guide (6) and main clamper body (1).
3. the locking pliers of improvement according to claim 1, it is characterized in that, described guide frame is for being located at the guide rail on the main clamper body (1), and above-mentioned guide (6) is connected on the guide rail, and is provided with back-moving spring (9) between guide (6) and main clamper body (1).
4. according to the locking pliers of claim 1 or 2 or 3 described improvement, it is characterized in that, one side of described locating part (7) is the working face (7a) of arc, opposite side has block seat (7b), described governor motion is that adjustment screw (10) can contact with above-mentioned block seat (7b) by being threadedly connected to the adjustment screw (10) on the connecting rod (5).
5. the locking pliers of improvement according to claim 4 is characterized in that, is with spring (11) on the described adjustment screw (10), and the two ends of spring (11) act on respectively on adjustment screw (10) and the connecting rod (5).
6. the locking pliers of improvement according to claim 4 is characterized in that, has the transition arc that several its arc radius increase successively on the working face (7a) of described locating part (7).
7. the locking pliers of improvement according to claim 5 is characterized in that, has groove (1a) on the described main clamper body (1), and above-mentioned guide post (12), spring (11) and guide (6) all are positioned at groove (1a).
8. the locking pliers of improvement according to claim 7, it is characterized in that, have in the groove (1a) of described main clamper body (1) retaining that can stop guide post (12) two ends respectively along one (1b) and retaining along two (8), the rear end of main clamper body (1) has draw-in groove (1c), and above-mentioned retaining is tabular and it is connected in the draw-in groove (1c) along two (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100609137A CN101249641A (en) | 2008-03-25 | 2008-03-25 | Improved locking pliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100609137A CN101249641A (en) | 2008-03-25 | 2008-03-25 | Improved locking pliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101249641A true CN101249641A (en) | 2008-08-27 |
Family
ID=39953323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100609137A Pending CN101249641A (en) | 2008-03-25 | 2008-03-25 | Improved locking pliers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101249641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425912A (en) * | 2016-11-09 | 2017-02-22 | 哈尔滨东安发动机（集团）有限公司 | Lock nut locking pliers |
| CN112247866A (en) * | 2020-09-26 | 2021-01-22 | 北京市春立正达医疗器械股份有限公司 | Safe type locking pliers |
-
2008
- 2008-03-25 CN CNA2008100609137A patent/CN101249641A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425912A (en) * | 2016-11-09 | 2017-02-22 | 哈尔滨东安发动机（集团）有限公司 | Lock nut locking pliers |
| CN112247866A (en) * | 2020-09-26 | 2021-01-22 | 北京市春立正达医疗器械股份有限公司 | Safe type locking pliers |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080827 |