CN2390725Y

CN2390725Y - Spanner with matching block

Info

Publication number: CN2390725Y
Application number: CN 99224048
Authority: CN
Inventors: 柳升
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-04
Filing date: 1999-06-04
Publication date: 2000-08-09
Anticipated expiration: 2009-06-04

Abstract

The utility model provides a spanner with a matching block for screwing screws, which is a tool of a mechanical field. The utility model is characterized in that a spanner head on a spanner handle is a combined matching block structure. The spanner head is provided with a block matching groove and a through-hole. The matching block is accordingly replaced according to the outer shape size of screwed caps. The utility model can be provided with two spanner heads and a plurality of matching blocks on the spanner handle to adapt to the unclamping operation and the clamping operation of the nuts with different specifications. The utility model has the advantages of simple structure, low cost, convenient operation, convenient portability and wide adaptive surface.

Description

Spanner with matching block

The utility model provides instrument---the spanner that mechanical field is used.

Before the utility model proposes, close with it wrench is double offset ring spanner and fork spanner.

The structure of double offset ring spanner is to establish spanner at the two ends of trigger piece, is plum-blossom sleeve in the spanner.Usually trigger piece two ends plum-blossom sleeve internal diameter is inconsistent, is adjacent two numbers specification.It is that plum-blossom sleeve is multiple tooth structure that there is shortcoming in double offset ring spanner, is not easy fastening and threads off easily for the nut of irregularity.And each spanner can only be twisted a kind of nut of specification.

The structure of fork spanner is to establish open-end wrench at the trigger piece two ends, and opening can block four planes of nut, and has two planes not to be stuck, and also easily the nut plane is destroyed.Fork spanner generally is respectively to establish a spanner at the trigger piece two ends, and a spanner can only be twisted the nut of two kinds of specifications.

The purpose of this utility model provides the Spanner with matching block that can twist the plurality of specifications screw on a spanner.

The scheme that realizes the utility model purpose is, establishing piece groove in spanner is established through hole joining in the piece groove, the piece of joining that adapts to the different size nut is installed in joining the piece groove, by joining the combination of piece and through hole, in spanner, form the space that matches with nut, to realize the chucking of nut.

The Spanner with matching block that adopts the utility model scheme to make can be established the spanner of different geometrical size respectively at trigger piece two ends, and it is that section is continuous that its through hole can make up adaptation nut specification, promptly from the minimum gauge to the maximum specification.Thereby, have such one spanner, just can adapt to tightening or unscrewing of different size nut.This spanner, easy to use, cost is low, and is widely applicable, especially is suitable as attachment tools.

Elaborate below in conjunction with accompanying drawing

Fig. 1 is the utility model spanner Facad structure schematic diagram

Fig. 2 is the utility model spanner side cutaway view

Fig. 3 joins block structural diagram for the utility model spanner

Fig. 4 is the utility model spanner spanner structural map

Among Fig. 1, (3) are trigger piece, are connected with respectively at the two ends of trigger piece (3) Spanner (1) and spanner (2) are provided with at spanner (1) and spanner (2) and join piece Groove (1a) and (2a), join piece groove (1a) and (2a) in be provided with through hole (1b) and (2b).

Among Fig. 2, (3) are trigger piece, are connected with respectively at the two ends of trigger piece (3) Spanner (1) and spanner (2), spanner (1) is identical with spanner (2) profile. Pulling Be provided with in head (1) and the spanner (2) and join piece groove (1a) and (2a), joining the piece groove Be respectively equipped with through hole (1b) and (2b) (1a) and (2a), the outer rim of through hole is little In the inner edge of joining the piece groove.

Among Fig. 3, (4) for joining piece, is provided with and joins piece mouth (4a) joining piece (4) With join block (4b).

Among Fig. 4, be provided with spanner (1) at trigger piece (3), establish at spanner (1) Be equipped with and join piece groove (1a) and through hole (1b), join to be equipped with in the piece groove (1a) and join piece (4), be installed in when joining in the piece groove (1a) when joining piece (4), join piece mouth (4a) with Join and form the nut mouth between the piece groove (1a).

Join piece (4) and can magnetize processing, in order to being placed in stablizing in the spanner.

The utility model spanner is installed two spanners usually on a trigger piece, the design of spanner is to press the physical dimension of nut profile and successional.That is to say that the maximum of the design of spanner from the minimum of little spanner to big spanner twisted different nuts at this section and need be changed the piece of joining that adapts with it.So, can twist the nut of plurality of specifications to spanner with one.Thereby, can finish spanner many work of spanner with one.Have easy to carry and the low advantage of comprehensive cost, be suitable for doing attachment tools and field work, this kind of configuration spanner more has weight reduction and the little characteristics that take up space on weaponry.

The embodiment explanation:

Design a kind of Spanner with matching block that adapts to the bolt nut specification from M4～M20, trigger piece (3) length is chosen as 20cm, spanner (1) is joined piece groove (1a) and is adapted to M12～M20 bolt nut appearance and size, and spanner (2) is joined piece groove (2a) adaptation M4～M10 nut outline dimension.Is 9 kinds of specifications at M4 to the interval standard cap of M20, removes outside the direct adaptation nut of spanner (1) and spanner (2), needs configuration to join piece for 7 kinds.Joining piece can pack into separately and join in the piece box with spanner.

Can design the Spanner with matching block of M20～M40 as required.

When being used for non-standard nut, can in joining piece nut mouth, adding key and come the adjusting play.

Claims

1. the Spanner with matching block that provides of the utility model, be spanner (1) and (2) that connect two kinds of specifications at the two ends of trigger piece (3) respectively, it is characterized in that, spanner (1) is provided with joins piece groove (1a), in joining piece groove (1a), be provided with through hole (1b), be equipped with in joining piece groove (1a) and join piece (4), the structure of spanner (2) is as spanner (1), its appearance and size difference.

2. spanner according to claim 1 is characterized in that, joins piece (4) and has the block of joining (4b) and join piece mouth (4a).

3. spanner according to claim 2 is characterized in that joining piece and can magnetize processing, in order to stablizing of assembling.