CN1139037A - Quick-adjustable universal tool for plumber - Google Patents

Abstract

The universal tool consists of four parts: moving clamping body, static clamping body, friction block and double rocker for forcing and self-locking with the moving clamping body being slide-matched to the static clamping body and the friction block to adjust the opening. When the main and the auxiliary handles are hand held the tool is self -locked and the mouth of tool clamps workpiece. The tool may be adjusted to forcing or self-locking, and it has several adjusting modes, including fast adjustment, two-way rotation and two-way idle return.

Description

Quick-adjustable universal tool for plumber

The present invention is a kind of multifunction hand-driven tool, particularly a kind of velocity modulation multifunction hand-driven tool.

When the installation and maintenance of pipeline industry, need use multiple heavy instruments such as pipe wrench, bench vice, hinge plate, cutter, workbench, these instruments carry very inconvenient, and pipe wrench, the jaw of bench vice distance can not velocity modulation, and preceding patent (CN88101582.2) is though can solve above problem, but exist complicated zero rapid wear of manufacturing process, it is worn-out sick that each self-locking all need be finely tuned etc.

The purpose of this invention is to provide a kind of manufacturing process does not simply have quick-wear part, velocity modulation, easy to operate multifunction hand-driven tool.

The present invention is that following mode is finished:

This instrument is by fixed caliper, moving caliper, friction slip, double rocking lever locking device four most of compositions, fixed caliper is made up of handle and fixed nip, fixed caliper matches with slideway with moving caliper, the preceding lower end of fixed caliper is shaped on jaw, friction slip, double rocking lever and moving caliper constitute ring-like connection by three bearing pins, and friction slip and handle also are slidingly matched simultaneously.Handle can slide in moving caliper and friction slip can make things convenient for roll adjustment, after tight handle of bun and bar handle can force friction slip to tilt and with handle, have only contact at 2, as long as when satisfying KL 〉=H, wherein the width of handle is that the width of L friction slip is K for the H coefficient of friction, according to law of friction as can be known friction slip can produce self-locking this moment two bars and have the trend that reaches 180 ° to force movable clamp port to travel forward and clamping work pieces, when two connecting rods reach 180 °, just can produce self-locking.

The present invention has following positive effect:

1, velocity modulation, multi-functional.

2, no Luo revolves mechanism, and no tooth bar detent mechanism is so good manufacturability is convenient to processing.

3, be convenient to operate the number of times that reduces fine setting.

4, can the two-way function of making the return trip empty be arranged positive and negative two-way rotation.

Below in conjunction with accompanying drawing the present invention is described in further detail:

Accompanying drawing is a principle front view of the present invention.

Form fixed caliper 22 by handle 21 and jaw 1, moving caliper 3 is slidingly matched with handle 21, friction slip 7 also is slidingly matched with handle 21, a last end of friction slip 7 is shaped on fine setting spiral shell thick stick 9, friction slip 7 is connected with bar 17 by bearing pin 18,17 the other end connects bar 14 by bearing pin 16, connect movable clamp port 12 and bar 14 by bearing pin 19, the handle bar is formed by paying handle 20 bars 14, the lower end of movable clamp port 12 and friction slip 7 is provided with the effect friction slip 7 that connects spring 15 and is close to moving caliper 3 and can makes things convenient for the roll adjustment that slides fast, when using, be used to hold tight handle 21 and pay handle 20, as long as (K is a coefficient of friction to satisfy KL 〉=H, L is the width of handle, H is the width of friction slip) according to can produce law of friction at this moment self-locking be friction slip can not slide finish spacing, while bar 14,17 have the trend that reaches 180 ° to force moving caliper 3 to move and clamping work pieces, but complete operation.Suitably adjust fine setting 9 as required and can control self-locking whether and the size of clamping force, so but get final product with the irrelevant disposable adjustment of the size of workpiece.Hold tight two handles 20,21 and get final product just can making the return trip empty of turn pipe fitting pine, so this instrument has the two-way function of making the return trip empty.Hole 4 is to establish for making bench vice.

Claims (2)

1, a kind of quick-adjustable universal tool for plumber is by moving caliper 22, fixed caliper 3, and friction slip 7, and two four ones of thick stick reinforcements, locking device that shake form, and it is characterized in that;

A, fixed caliper 22 are made up of jaw 1 handle 21;

B, fixed caliper 22 are slidingly matched with moving caliper 3, and friction slip 7 is slidingly matched with quiet pincers 22;

C, friction slip 7 upper ends are shaped on fine setting Luo thick stick 9;

The lower end of d, friction slip 7 connects bar 17 by bearing pin 18;

E, connect connecting rods 14,17 by bearing pin 16, bearing pin 19 connects connecting rods 14 movable clamp ports 12.

F, extension spring 16 is housed 12 of friction slip 7 movable clamp ports;

2, the multi-functional pipe wrench of velocity modulation according to claim 1 is characterized in that;

Handle 21 width L, the width H of friction slip 7, must satisfy KL 〉=H wherein K be coefficient of friction.

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