CN201619043U - Reversible wrench - Google Patents

Abstract

A reversible wrench consists of an outer ring, a rotating ring, a clutch key, a return spring, a key sleeve and a handle. The rotating ring is sleeved by the outer ring which is provided with a lateral hole, the clutch key is mounted in the lateral hole on the outer ring and integrally fixed with the outer ring, an inner bore of the key sleeve aligns to the lateral hole on the outer ring, the tail of the clutch key is disposed in the inner bore of the key sleeve, the spring is mounted in the inner bore of the key sleeve and presses the clutch key, a clutch groove is arranged on the outer wall of the rotating ring, the front end of the clutch key is clamped in the clutch groove, the inner bore of the rotating ring is a hexagonal hole, and the handle is in threaded connection with the key sleeve. As the rotating ring can be driven to rotate with the handle when in forward rotation, the outer ring is driven to rotate while the rotating ring stops when rotating the handle reversely, and nuts can be detached or mounted by forwards rotating or reversely rotating the wrench without taking the wrench away firstly and then using to mount the nuts. Therefore, the reversible wrench is convenient and fast in operation, reduces operating time and increases work efficiency.

Description

Can reverse spanner

Technical field

The utility model is the instrument that mounting or dismounting oil-field oil pumper, wellhead for production are used, and is a kind of spanner that reverses.

Background technology

Valve on the oil-water well production tree, threeway, polished rod sealer, the oil nozzle cover, connection between the various device on the oil pumper is all finished by the bolt screw, for fast assembling-disassembling bolt screw, the on-the-spot normal back-up wrench that adopts is screwed screw, fixedly connected between the draw-in groove of these spanners and the handle and be integral, though can transmit moment of torsion, but whenever rotate to an angle and to take off back-up wrench after blocking nut, back-up wrench is turned back to original orientation blocks the nut rotation again, it is cumbersome to pick and place back-up wrench like this, operating time is long, inefficiency.

Summary of the invention

The purpose of this utility model is a kind of spanner that reverses of design, and is easy to operate, quick, reduces the operating time, increases work efficiency.

The purpose of this utility model is achieved in that by outer ring, rotation circle, clutch key, back-moving spring, key cover, handle to be formed, the rotation circle is entangled in the outer ring, sidewise hole is arranged on the outer ring, in the sidewise hole on the outer ring clutch key is installed, the key cover is fixed into one with the outer ring, key cover endoporus is aimed at the sidewise hole on the outer ring, the clutch key afterbody is in the key cover endoporus, the key cover) mounting spring in the endoporus, spring is pushed down clutch key, and the rotation ring outer wall has clutch slot, and the clutch key front end is stuck in the clutch slot, in the rotation circle is the hexangle type hole, and handle is connected with the key cover.

Handle adopts with the key cover and is threaded.

The beneficial effects of the utility model are: can rotate jointly by the driven rotary circle when being rotated in the forward handle, during the counter-rotating handle, the outer ring rotation, the rotation circle does not rotate, and therefore, the utility model does not need it is taken off installation again when the dismounting nut, only need the rotation counter-rotating or just reverse and with the nut dismounting or to install, easy to operate, quick, reduce the operating time, increase work efficiency.

Description of drawings

Accompanying drawing is the structure chart of the utility model embodiment.

Specific embodiment

Below in conjunction with accompanying drawing the utility model embodiment is described.

As seen from the figure, the utility model is by outer ring 1, rotation circle 2, clutch key 3, back-moving spring 4, key cover 5, handle 6 is formed, rotation circle 2 is entangled in outer ring 1, on the outer ring 1 sidewise hole is arranged, clutch key 3 is installed in the sidewise hole on the outer ring 1, key cover 5 is fixed into one with outer ring 1, and key overlaps the sidewise hole on the 5 endoporus aligning outer ring 1, makes clutch key 3 afterbodys be in key and overlaps in 5 endoporus, key overlaps mounting spring 4 in 5 endoporus, spring 4 is pushed down clutch key 3, and rotation circle 2 outer walls have clutch slot 7, and clutch key 3 front ends are stuck in 7 li of clutch slot, in the rotation circle 2 is hexangle type hole 8, can entangle hex nut, make hex nut and the rotation simultaneously of rotation circle, handle 6 is threaded with key cover 5.The utility model resets nut rotation or outer ring 1 by the separate or merge of outer ring 1, rotation circle 2.

Claims (2)

1. one kind can be reversed spanner, by outer ring (1), rotation circle (2), clutch key (3), back-moving spring (4), key cover (5), handle (6) is formed, it is characterized in that: outer ring (1) cover. live rotation circle (2), there is sidewise hole the outer ring on (1), clutch key (3) is installed in the sidewise hole on the outer ring (1), key cover (5) is fixed into one with outer ring (1), key cover (5) endoporus is aimed at the sidewise hole on the outer ring (1), clutch key (3) afterbody is in key cover (5) endoporus, mounting spring (4) in key cover (5) endoporus, spring (4) is pushed down clutch key (3), rotation circle (2) outer wall has clutch slot (7), clutch key (3) front end is stuck in clutch slot (7) lining, is hexangle type hole (8) in the rotation circle (2), and handle (6) is connected with key cover (5).

2. the spanner that reverses according to claim 1 is characterized in that: handle (6) adopts with key cover (5) and is threaded.

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