CN2801398Y - Self-locking type pliers with driving device - Google Patents
Self-locking type pliers with driving device Download PDFInfo
- Publication number
- CN2801398Y CN2801398Y CN 200520041991 CN200520041991U CN2801398Y CN 2801398 Y CN2801398 Y CN 2801398Y CN 200520041991 CN200520041991 CN 200520041991 CN 200520041991 U CN200520041991 U CN 200520041991U CN 2801398 Y CN2801398 Y CN 2801398Y
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- pliers
- cam
- self
- handgrip
- tong
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- Expired - Fee Related
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Abstract
The utility model discloses a pair of self-locking type pliers with a driving device, which overcomes the disadvantage that the existing product has inconvenient operation and use and comprises a fixing pliers opening and moving pliers openings, wherein the fixing pliers opening is fixed on a big pliers handgrip and the moving pliers openings are movably riveted on the big pliers handgrip and a middle pliers handgrip by rivets and are hooked on the big pliers handgrip by an extension spring. The handle part of the big pliers handgrip is provided with a slide core shaft supported between an upper fixing seat and a lower fixing seat, and a triple rod linkage mechanism with an adjustable length is arranged between the slide core shaft and the middle pliers handgrip. The triple rod linkage mechanism comprises a lock sleeve sheathed on the slide core shaft, and one end of the lock sleeve is movably hinged with a cam by a long cylindrical pin; the other end of the cam is movably hinged with a cam rod by a short cylindrical pin, and the cam rod is movably riveted in the middle pliers handgrip by rivets. The product eliminates the trouble that the existing product can automatically lock and clamp work pieces only by that the expansion degree of the pliers opening needs being adjusted in advance. The utility model has the characteristics of simple structure, convenient operation and complete function. The utility model can be widely suitable for working and producing requirements of operators and maintenance workers in industrial and mining businesses and hardware shops.
Description
Technical field
The utility model relates to a kind of Hardware pliers manufacturing technology field of holding workpiece, especially refers to the coupling mechanism between two pincers of instrument pincers handle.
Background technology
Locking pliers is an indispensable standing instrument in mechanical five metals class factory, maintenance store and the large-scale industrial and mineral equipment, and the dark audient's multioperation workers of multiple instrumental function such as it is big because of clamping force, tool pipe vice, vice and spanner, maintenance mans like.Locking pliers product of the prior art generally all needs to adjust the nut of being located at the handle afterbody according to the size that is held workpiece before use in advance, and jaw is adjusted to suitable opening and closing angle, just can reach the function of self-locking.Comparatively typical product has that the disclosed name of State Intellectual Property Office's on August 27th, 2003 is called " a kind of long handle locking pliers ", notification number is the utility model patent of CN2568363Y, this product " nut that employing is embedded in big handle rear portion is regulated the structure of binding clip opening and closing angle alive; the pincers handle has extended; increased the arm of force ... be fit to daily general maintenance and installation job requirements, has really brought into play the function of spanner, pipe vice." therefore, this product before clamping, all must be adjusted nut to different big or small parts in advance, otherwise just can't close up the purpose that the pincers handle reaches self-locking, have awkward defective.In addition, the chucking power of this product can not be regulated according to actual needs, for the lower parts of case hardness, easily produces the bad or situation of pressing from both sides flat component surface of folder, and the scope of application is restricted.For this reason, people expect to invent a kind of self-locking type locking pliers of adjusting of exempting from before use, and can regulate chucking power according to the actual needs, with operative employee, the maintenance mans' work of satisfying numerous industrial and mining enterprises, five metals shop and produce required.
The utility model content
The technical problems to be solved in the utility model is to overcome existing product to manipulate inconvenience, jaw and easily press from both sides bad or the defective and the deficiency of pressing from both sides flat component surface, before providing a kind of the use, society exempts to adjust the self-locking type locking pliers product of jaw opening and closing degree, this product can also be regulated chucking power according to the actual needs, satisfies operative employee, maintenance mans' work in numerous industrial and mining enterprises, five metals shop and produces required.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of self-locking type locking pliers, comprise regular jaw and moving jaw, regular jaw is fixed in tong last, moving jaw is movably riveted on tong handle and middle pincers handle with rivet, and be hooked on the tong handle by extension spring, tong handle shank is provided with supported slip mandrel between last lower fixed seat, is provided with three link mechanisms of adjustable-length between slip mandrel and the middle pincers handle.
Described three link mechanisms comprise the lock tube that is socketed on the slip mandrel, and an end of lock tube is movably hinged cam by oval pin; The other end of cam is movably hinged cam lever by the short cylindrical pin, pincers handle during cam lever is movably riveted on by rivet.
Described slip mandrel one end is provided with spring base, and the slide cores axle sleeve between spring base and the lock tube has spring.
The L-shaped shape of described cam lever, the quarter butt portion of " L " shape is provided with adjustment screw, and the head of screw terminates in cam face.
Be provided with spring between quarter butt portion of described " L " shape and the adjustment screw knob.
The utility model self-locking type locking pliers, with three link mechanisms of adjustable-length substituted be located in the prior art two clamping clips between strip support thick stick parts, improved mechanical strength, increased the amplitude of accommodation of jaw opening and closing.By adjusting the adjustment screw of three link mechanisms, reach the purpose of regulating initial angle between tong handle and the middle pincers handle, thereby realize the adjusting of clamping force.Establish the slip mandrel in tong handle shank inboard,, guarantee to realize auto-lock function all the time when the pincers handle closes up, need adjust jaw opening and closing degree in advance, trouble that just can the self-locking holding workpiece thereby got rid of existing product by the Elastic Sliding of lock tube along the slip mandrel.The utility model product structure is simple, easy to use, multiple functional, is widely used in operative employee, maintenance mans' work in numerous industrial and mining enterprises, five metals shop and produces required.
Description of drawings
Fig. 1 is the utility model jaw open configuration structural representation.
Fig. 2 is the utility model self-locking status architecture schematic diagram.
Fig. 3 is the utility model three-line machine structure structural representation.
Fig. 4 is the upward view of Fig. 3.
Fig. 5 is that the utility model unclamps jaw process schematic diagram.
The specific embodiment
As depicted in figs. 1 and 2, the utility model self-locking type locking pliers comprises regular jaw 1 and moving jaw 2, regular jaw 1 is fixed in tong on 3, moving jaw 2 usefulness rivets 5,6 be movably riveted on respectively tong 3 and middle pincers 4, and be hooked on tong 3 by extension spring 8.Tong 3 and middle pincers 4 handle body is respectively equipped with rubber sheath 17,19.In pincers handle 20 is unclamped by the movable riveted joint of rivet 22 in 4 middle parts, at middle pincers 4 and unclamp handle 20 medial surface nationalitys with torsion spring 24.Unclamp handle 20 stretch out in pincers 4 afterbody is provided with rubber sheath 18.It is supported between last lower fixed seat 9,16 that tong is welded with lower fixed seat 9,16, one slip mandrels 13 to the inboard of 3 handles middle parts and afterbody respectively.End slip mandrel 13 near upper fixed seat 9 is with lock tube 12, and lower fixed seat 16 is provided with spring base 15, and the slip mandrel 13 between lock tube 12 and the spring base 15 is with spring 14.Slip mandrel 13 and middle pincers are three link mechanisms that are provided with adjustable-length between 4.
As shown in Figure 3 and Figure 4, three link mechanisms comprise the lock tube 12 that is socketed on slip mandrel 13, and an end of lock tube 12 is movably hinged cam 11 by oval pin 21; The other end of cam 11 is movably hinged cam lever 10 by short cylindrical pin 23, and pincers were 4 during cam lever 10 was movably riveted on by rivet 7.Cam lever 10 L-shaped shapes, the quarter butt portion of " L " shape is provided with adjustment screw 26, and the head of screw terminates in cam 11 end faces.Be provided with spring 25 between quarter butt portion of " L " shape and adjustment screw 26 knobs.By turn adjustment screw 26, the angle between cam lever 10 and the cam 11 is changed, thereby reach the purpose of regulating hinged place, two ends straight length.
Continue in conjunction with the accompanying drawings below, narrate operation principle of the present utility model.As shown in Figure 1, pliers is at first adjusted adjustment screw 26 according to the size of clamping force under open mode.Big if desired clamping force is counterclockwise rotated adjustment screw 26, and this moment, screw 26 heads shrank, and the first angle [alpha] that makes between cam lever 10 and the cam 11 reduces, and tong tends to parallel to 3 to 4 with middle pincers, execute same power after, the clamping force increase.If desired little clamping force, clockwise direction rotation adjustment screw 26, this moment, screw head stretched out, first between cam lever 10 and the cam 11 makes the angle [alpha] increase, execute same power after, make a concerted effort to reduce, clamping force reduces.
During use, elder generation is according to the hardness of clamping parts, the position of adjusting adjustment screw 26.Regular jaw 1 and moving jaw 2 are clamped folded workpiece, hold tong 3 and middle pincers 4, middle pincers inwardly shrink 4, make pincers in acting on promote the active force of rivet 7 on 4 cam lever 10, cam 11, the lock tube 12 of three link mechanisms, make lock tube 12 overcome compression spring 14 elastic force, slide backward along slip mandrel 13.Meanwhile, active force promotes moving jaw 2 to 4 around rivet 6 rotations by middle pincers.As shown in Figure 2, when holding with a firm grip when the bipod that unclamps handle 20 contacts with lock tube 12 tapered planes, cam lever 10 turns to the self-locking of self-locking angle with cam 11 around its hinged place straight pin 23, thereby reaches the purpose of clamping work pieces.
As shown in Figure 5, in the time of unclamping workpiece, depress along the P direction of arrow and to unclamp handle 20, make two angles of unclamping handle 20 withstand the inclined-plane of lock tube 12 and promote in pincers 4, make cam lever 10 around rotating with the hinged straight pin 23 of cam 11, untie the self-locking angle.Under the thrust of compression spring 14, lock tube 12 reach that resets clamps in cam 11, cam lever 10 drive and opens 4, thereby opens the utility model locking pliers automatically.
Claims (5)
1, a kind of self-locking type locking pliers, comprise regular jaw (1) and moving jaw (2), regular jaw (1) is fixed in tong on (3), moving jaw (2) is movably riveted on tong handle (3) and middle pincers handles (4) respectively with rivet (5,6), and be hooked on tong (3) by extension spring (8), it is characterized in that: tong is provided with supported slip mandrel (13) between last lower fixed seat (9,16) to (3) handle portion, and slip mandrel (13) and middle pincers are three link mechanisms that are provided with adjustable-length between (4).
2, self-locking type locking pliers as claimed in claim 1 is characterized in that: described three link mechanisms comprise the lock tube (12) that is socketed on slip mandrel (13), and an end of lock tube (12) is movably hinged cam (11) by oval pin (21); The other end of cam (11) is movably hinged cam lever (10) by short cylindrical pin (23), and pincers were (4) during cam lever (10) was movably riveted on by rivet (7).
3, self-locking type locking pliers as claimed in claim 2 is characterized in that: described slip mandrel (13) one ends are provided with spring base (15), and the slip mandrel (13) between spring base (15) and the lock tube (12) is with spring (14).
4, as claim 2 or 3 described self-locking type locking pliers, it is characterized in that: the L-shaped shape of described cam lever (10), the quarter butt portion of " L " shape is provided with adjustment screw (26), and the head of screw terminates in cam (11) end face.
5, self-locking type locking pliers as claimed in claim 4 is characterized in that: be provided with spring (25) between quarter butt portion of described " L " shape and adjustment screw (26) knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041991 CN2801398Y (en) | 2005-05-25 | 2005-05-25 | Self-locking type pliers with driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041991 CN2801398Y (en) | 2005-05-25 | 2005-05-25 | Self-locking type pliers with driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2801398Y true CN2801398Y (en) | 2006-08-02 |
Family
ID=36846103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520041991 Expired - Fee Related CN2801398Y (en) | 2005-05-25 | 2005-05-25 | Self-locking type pliers with driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2801398Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079234A1 (en) * | 2010-12-15 | 2012-06-21 | 杭州巨星科技股份有限公司 | Spring clamp |
| CN104385164A (en) * | 2014-11-14 | 2015-03-04 | 国家电网公司 | Insulated clamp |
| CN109967862A (en) * | 2019-04-01 | 2019-07-05 | 广州市雷斯盾电气科技发展有限公司 | A kind of novel die folder |
| CN111251261A (en) * | 2018-11-30 | 2020-06-09 | 锦圣科技股份有限公司 | Clamp of bicycle workbench |
-
2005
- 2005-05-25 CN CN 200520041991 patent/CN2801398Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079234A1 (en) * | 2010-12-15 | 2012-06-21 | 杭州巨星科技股份有限公司 | Spring clamp |
| US9027913B2 (en) | 2010-12-15 | 2015-05-12 | Hangzhou Great Start Industrial Co., Ltd. | Spring clamp |
| CN104385164A (en) * | 2014-11-14 | 2015-03-04 | 国家电网公司 | Insulated clamp |
| CN111251261A (en) * | 2018-11-30 | 2020-06-09 | 锦圣科技股份有限公司 | Clamp of bicycle workbench |
| CN109967862A (en) * | 2019-04-01 | 2019-07-05 | 广州市雷斯盾电气科技发展有限公司 | A kind of novel die folder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 |