CN201295933Y

CN201295933Y - Labor-saving clamp

Info

Publication number: CN201295933Y
Application number: CNU2008201307534U
Authority: CN
Inventors: 陆境燃
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-21
Filing date: 2008-07-21
Publication date: 2009-08-26
Anticipated expiration: 2018-07-21

Abstract

The utility model discloses a labor-saving clamp which comprises handles, clamp scissors and rotating shafts of connecting pins. The utility model is characterized in that supporting rods and clamp scissors arranged at the left side and the right side are movably hinged through the rotating shafts of the pins; the supporting rods and supporting plates are movably hinged through the rotating shafts of the pin; crossing positions of the two supporting plates are movably hinged through the rotating shafts of the pins; the two handles and the two supporting plates are movably hinged through the rotating shafts of the pins; the upper ends of the two supporting plates are provided with two groove teeth; a gear is respectively arranged in each groove tooth of each supporting plate; handle connecting side blocks are arranged at the left side and the right side of the gear and each supporting plate; the handle connecting side blocks is movably connected with one gear through the rotating shaft of the pin; and each handle is connected with one handle connecting side block. The two gears are respectively transmitted in the left groove tooth and the right groove tooth in an engaged mode. The structure forms consecutive lever mechanisms which simultaneously work through being mutually pressed, and larger cutting force can be obtained at the scissor clamp. The utility model has the advantages of simple structure, low cost, convenient and easy operation and high suitability.

Description

Labor-saving plier

Technical field

The utility model relates to a kind of hand-operated tools, especially pliers.

Background technology

The application of pliers is very extensive, and structure and shape have varied, generally all comprises handle and cutting nippers being provided with rotational structure between handle and cutting nippers, controls the cutting nippers clamping, clamps or cut off object by operating grip.But the pliers that can shear iron wire, reinforcing bar just seldom, and complex structure, product that cost is high are arranged, and as motorized stage vice, hydraulic tongs etc., so discomfort is general usefulness, the cheapest bolt clipper commonly used still is gruelling, and some crowd is have more than is needed, has been shortcoming very.

Summary of the invention

The utility model has been designed a kind of more labour-saving pliers, can cut off iron wire or reinforcing bar about 8mm easily, and simple in structure, cost is low, simple operation easily, is generally used preferably.It is characterized in that: be movably hinged by pin rotating shaft 2 at the support bar 3 on limit, the left and right sides and cutting nippers 1 and support bar 4, support bar 3 and support plate 6, support bar 3 and support plate 7, support bar 4 and support plate 6, support bar 4 and support plate 7 all are movably hinged by pin rotating shaft 5, support plate 6 and support plate 7 crossover locations are movably hinged by pin rotating shaft 8, handle 9 and support plate 7, handle 10 and support plate 6 are movably hinged by pin rotating shaft 11 separately, and support plate 6 and support plate 7 upper ends all are provided with a groove tooth 16 and groove tooth 17; In the groove tooth 16 of support plate 6 and groove tooth 17 gear 14 is arranged, have handle to link lateral mass 12 at support plate 6 and limit, gear 14 left and right sides, handle links lateral mass 12 and gear 14 by 13 movable connections of pin rotating shaft, and handle 9 links lateral mass 12 with handle and links; In the groove tooth 16 of support plate 7 and groove tooth 17 gear 15 is arranged, have handle to link lateral mass 12 at support plate 7 and limit, gear 15 left and right sides, handle links lateral mass 12 and gear 15 by 13 movable connections of pin rotating shaft, and handle 10 links lateral mass 12 with handle and links.And gear 14 and gear 15 mesh respectively to rotate to move at left and right sides groove tooth 16 or groove tooth 17 and contact.

The pliers of said structure is the power arm of input power with handle 9 and 10, with pin rotating shaft 11 is fulcrum, pin rotating shaft 13 is a resistance arm, close handles 9 and 10 o'clock, the gear 14 that rotates in pin rotating shaft 13 contacts groove tooth 16 outside moving with gear 15, act on simultaneously support plate 6 and support plate 7 again and close up the pushing of outside both sides, push to cutting nippers 1, obtain greater than the laborsaving shearing force that acts on manyfold at cutting nippers 1 so make support bar 3 and support bar 4 also close up outside both sides; As opening handle 9 and at 10 o'clock, the gear 14 that rotates in pin rotating shaft 13 moves inward at groove tooth 17 with gear 15 and contacts.

Description of drawings

It among Fig. 1 the utility model pliers expanded configuration schematic diagram.

It among Fig. 2 the utility model pliers closing structure schematic diagram.

The specific embodiment

Because cutting nippers 1 is similar to general bolt clipper, and is known, tell about so concrete structure no longer more.Be movably hinged by pin rotating shaft 2 at the support bar 3 on limit, the left and right sides and cutting nippers 1 and support bar 4, support bar 3 and support plate 6, support bar 3 and support plate 7, support bar 4 and support plate 6, support bar 4 and support plate 7 all are movably hinged by pin rotating shaft 5, support plate 6 and support plate 7 crossover locations are movably hinged by pin rotating shaft 8, handle 9 and support plate 7, handle 10 and support plate 6 are movably hinged by pin rotating shaft 11 separately, support plate 6 and support plate 7 upper ends all are provided with a groove tooth 16 and groove tooth 17, in the groove tooth 16 of support plate 6 and groove tooth 17, a gear 14 is arranged, there is handle to link lateral mass 12 at support plate 6 and limit, gear 14 left and right sides, handle links lateral mass 12 and gear 14, and (handle links lateral mass 12 and gear 14 has respective through hole to rotate to clamping the common technology of class etc. in pin rotating shaft 13 by 13 movable connections of pin rotating shaft, illustrating can be very clear, simply, known, so need not to analyse and observe or tell about in mapping), handle 9 links lateral mass 12 with handle and links.In the groove tooth 16 of support plate 7 and groove tooth 17 gear 15 is arranged, have handle to link lateral mass 12 at support plate 7 and limit, gear 15 left and right sides, handle links lateral mass 12 and gear 15 by 13 movable connections of pin rotating shaft, and handle 10 links lateral mass 12 with handle and links.When close handles 9 and 10, gear 14 and gear 15 mesh respectively to rotate outwards to move at left and right sides groove tooth 16 and contacts, open handle 9 and at 10 o'clock, and gear 14 and gear 15 mesh rotation respectively and move inward at left and right sides groove tooth 17 and contact.Certainly gear 14 and gear 15 can also be arranged to planar slide piece and the sliding-contact of planar slide groove in groove tooth 16 and groove tooth 17.

The operation principle and the using method of the utility model pliers are: handle 9 and 10 lever are fulcrum with pin rotating shaft 11, handle 9 and 10 power arms for input power, pin rotating shaft 13 is a resistance arm, when inwardly exerting pressure handle 9 and 10, the gear 14 that rotates in pin rotating shaft 13 rotates outwards mobile the contact with gear 15 along 16 engagements of left and right sides groove tooth, at this moment got nearlyer (being that handle 9 and handle 10 are pressing fulcrum pin rotating shaft 11 pressing fulcrum pin rotating shaft 13 again) at support plate 6 and support plate 7 by cramping and meet support plate 6 just and support plate 7 closes up outside pushing, push to cutting nippers 1 so make support bar 3 and support bar 4 also close up outside both sides.As open handle 9 and at 10 o'clock, and the gear 14 that rotates in pin rotating shaft 13 rotates to move inward along 17 engagements of left and right sides groove tooth with gear 15 and contacts, and support plate 6 and support plate 7 crampings open, and support bar 3 and support bar 4 are also opened, so cutting nippers 1 is also opened.The leverage that form to link up between this, the general character that is laminated work can obtain shearing force greater than the active force manyfold at cutting nippers 1, and is very laborsaving.Certainly can also be arranged to the multiduty pliers head instrument of clamping, clamping etc. at 1 mouthful of place of cutting nippers, perhaps the handle of cutting that changes to the normal crossing scissors at the cutting nippers that is movably hinged by pin rotating shaft 21 is provided with respective through hole and is movably hinged by pin rotating shaft 2, and equally more various hard sheet things are cut off in the labour-saving.

Claims

1, a kind of labor-saving plier, comprise handle, pincers are cut and the connecting pin rotating shaft, it is characterized in that: be movably hinged by pin rotating shaft (2) at the support bar (3) on limit, the left and right sides and cutting nippers (1) and support bar (4), support bar (3) and support plate (6), support bar (3) and support plate (7), support bar (4) and support plate (6), support bar (4) and support plate (7) all pass through pin rotating shaft (5) and are movably hinged, support plate (6) and support plate (7) crossover location are movably hinged by pin rotating shaft (8), handle (9) and support plate (7), handle (10) and support plate (6) are movably hinged by pin rotating shaft (11) separately, and support plate (6) and support plate (7) upper end all are provided with a groove tooth (16) and groove tooth (17); In the groove tooth (16) of support plate (6) and groove tooth (17), a gear (14) is arranged, there is handle to link lateral mass (12) at support plate (6) and gear (14) limit, the left and right sides, handle links lateral mass (12) and gear (14) connects by pin rotating shaft (13) is movable, and handle (9) links lateral mass (12) with handle and links; In the groove tooth (16) of support plate (7) and groove tooth (17), a gear (15) is arranged, there is handle to link lateral mass (12) at support plate (7) and gear (15) limit, the left and right sides, handle links lateral mass (12) and gear (15) connects by pin rotating shaft (13) is movable, and handle (10) links lateral mass (12) with handle and links.

2, labor-saving plier according to claim 1 is characterized in that: gear (14) and gear (15) engagement are rotated at groove tooth (16) or groove tooth (17).