CN208592768U

CN208592768U - Box spanner

Info

Publication number: CN208592768U
Application number: CN201821288793.1U
Authority: CN
Inventors: 宋海滨; 黄文帜
Original assignee: Jiai Tianjin Petroleum Engineering Co ltd
Current assignee: Tianjin Jichen Intelligent Equipment Co., Ltd.
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2019-03-12
Anticipated expiration: 2028-08-10

Abstract

The utility model discloses a kind of box spanners, are related to the rotation technical field of tools of bolt or nut, to solve the problems, such as that existing box spanner is not available in narrow space and is designed.The utility model box spanner includes the wrench body of column or tubulose and the handle for torsion spanner main body, it outwardly protrudes to form at least two lug bosses in the axial direction in the bottom surface of wrench body, whole lug bosses are arranged relative to the axisymmetrical of wrench body.The utility model box spanner solves the problems, such as that existing box spanner is not available in bolt or narrow nut surrounding space, and the scope of application is wider, using more convenient；One box spanner can be suitably used for the bolt or nut of various sizes, and frequently replacement box spanner is not necessarily in the course of work.

Description

Box spanner

Technical field

The utility model relates to the rotation technical field of tools more particularly to a kind of box spanner of bolt or nut.

Background technique

Box spanner is a kind of tool for being suitble to twist bolt or nut in small space or in recess, packet The wrench body of a tubulose and the handle being arranged in wrench body are included, is formed and is used for and bolt on the inner wall of wrench body Or the compatible hexagon ring of nut or 12 corner apertures.In use, wrench body is fastened on bolt or nut, pass through handle band The rotation of wrench main body, and then bolt or nut rotation is driven to tighten or unscrew.

The defect of existing box spanner is: needing for wrench body to be set in when use outside bolt or nut to be turned Side is not available the set when the surrounding space of bolt or nut wait turn is very small so that when wrench body can not be stretched Barrel spanner；The internal diameter of wrench body is specified value, needs replacing box spanner when the size of bolt or nut changes, makes With inconvenience.

Utility model content

The purpose of this utility model is that proposing that one kind still can normal use in bolt or narrow nut surrounding space Box spanner.

For this purpose, the utility model uses following technical scheme:

A kind of box spanner, the wrench body including column or tubulose and the handle for reversing the wrench body, Outwardly protrude to form at least two lug bosses in the axial direction in the bottom surface of the wrench body, all the lug bosses relative to The axisymmetrical of the wrench body is arranged.

In particular, being set with through-hole at the middle part of the wrench body or top, the handle is removably mounted on institute It states in through-hole.

Further, at the middle part of the wrench body or top setting there are two the through-hole, the handle is sequentially passed through Two through-holes；The line of two through-holes intersects with the axis of the wrench body.

In particular, the diameter of the through-hole is equal to 1/10th of the wrench body length.

In particular, the distance between the center of circle of the through-hole and the wrench body top margin are equal to the wrench body length 1/10th.

In particular, forming transition angle between the lug boss and the bottom surface of the wrench body.

In particular, the width L of the lug boss is greater than its height S.

In particular, the outer application in the lug boss forms wearing layer.

In particular, the wrench body is hollow tubular structure, hexagon ring is formed on the inner wall of the wrench body Or 12 corner apertures.

The wrench body bottom surface of the utility model box spanner is formed with lug boss, and lug boss is inserted into bolt to be rotated Or in the groove on nut, the bolt or nut can be driven to rotate by rotary spanner main body, solve existing box spanner The problem of not being available in bolt or narrow nut surrounding space, the scope of application is wider, using more convenient；One box spanner It can be suitably used for the bolt or nut of various sizes, frequently replacement box spanner be not necessarily in the course of work.

Detailed description of the invention

Fig. 1 is the main view for the box spanner that specific embodiment of the present invention provides；

Fig. 2 is sectional view along A-A in Fig. 1；

Fig. 3 is the fit structure schematic diagram of the wrench body that specific embodiment of the present invention provides and handle.

In figure:

1, wrench body；2, lug boss；3, handle；4, transition angle；11, through-hole；12, top margin.

Specific embodiment

Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.

Present embodiment discloses a kind of box spanner.As shown in Figure 1 to Figure 3, which includes wrench body 1 and uses In the handle 3 of torsion spanner main body 1, outwardly protrude to form four relative to spanner in the axial direction in the bottom surface of wrench body 1 The lug boss 2 of 1 axisymmetrical of main body setting.

Flat recess or cross recess are offered at the top of the bolt or nut being used cooperatively with the box spanner, by box spanner Lug boss 2 be inserted into the flat recess or cross recess, by 3 rotary spanner main body 1 of handle, wrench body 1 passes through 2 band of lug boss Dynamic bolt or nut rotation, tighten or unscrew to realize, working principle is similar to "-" type or Philips screwdriver.Use the set The position to exert a force when barrel spanner is at the top of bolt or nut, not shadow when the lateral space of bolt or nut is very narrow Sound is tightened or is unscrewed, and the scope of application is wider, solves the problems, such as that existing box spanner is not available when lateral space is narrow.

In addition, after opening up flat recess or cross recess at the top of bolt or nut, one box spanner can be suitably used for it is various (more recently apart from the center of bolt or nut, caliber is thick for the lug boss 2 of the thin box spanner of caliber for the bolt or nut of size Box spanner center of the lug boss 2 apart from bolt or nut it is more farther), without frequently replacement sleeve barrel spanner in the course of work Hand.

Wrench body 1 can be solid column structure, and intensity is higher, and the service life is longer；It is also possible to hollow pipe Shape structure, when stud base protrudes from nut top surface, the wrench body 1 of tubulose is set in stud base's rear projection portion 2 still It can be inserted in the flat recess on nut top surface or cross recess, it is wider than existing box spanner or the screwdriver scope of application.

Specific connection relationship between handle 3 and wrench body 1 is unlimited, and preferably handle 3 is removably mounted on spanner In main body 1, when working environment there are other objects to block than narrow, surrounding, wrench body 1 first can be placed into working position It sets and then is mounted in wrench body 1 after handle 3 clears the jumps again, suitable for the working environment of Various Complex.

As shown in Figures 2 and 3, it is set with through-hole 11 at the middle part of wrench body 1 or top, handle 3 is removably installed In through-hole 11.Preferably, at the middle part of wrench body 1 or top setting there are two through-hole 11, the line of two through-holes 11 with The axis of wrench body 1 intersects, and handle 3 sequentially passes through two through-holes 11, and force when rotational handle 3 in wrench body 1 is more Add uniformly, guarantees that the rotation of bolt or nut is more smooth.

The diameter of through-hole 11 is preferably equal to 1/10th of 1 length of wrench body, the center of circle and the wrench body 1 of through-hole 11 The distance between top margin 12 is preferably equal to 1/10th of 1 length of wrench body, and processing is more convenient, and use is more labor-saving.

During tightening or loosering a bolt or nut, bigger reaction force is born on lug boss 2, in order to keep away Exempt from lug boss 2 to be broken off, transition angle 4 (or being chamfering), solution can be formed between lug boss 2 and the bottom surface of wrench body 1 Certainly the problems in 2 Root Stress collection of lug boss；The width L of lug boss 2 can be enabled to be greater than the height S of lug boss 2,2 energy of lug boss Bear the bigger power perpendicular to axis；Wearing layer can also be formed in the outer application of lug boss 2, avoid improving lug boss 2 Wear resistance is improved while intensity, is prolonged the service life.

When wrench body 1 is hollow tubular structure, hexagon ring or 12 can be formed on the inner wall of wrench body 1 Corner apertures enables the socket spanner have both the function of existing box spanner, according to concrete decision the case where working environment be using Lug boss 2 or inner hole, using more convenient.

Note that the technical principle that above are only the preferred embodiment of the utility model and used.Those skilled in the art It will be appreciated that the utility model is not limited to specific embodiment described here, it is able to carry out for a person skilled in the art various Apparent variation is readjusted and is substituted without departing from the protection scope of the utility model.Therefore, although by implementing above Example is described in further detail the utility model, but the utility model is not limited only to above embodiments, is not taking off It can also include more other equivalent embodiments in the case where from the utility model design, and the scope of the utility model is by institute Attached scope of the claims determines.

Claims

1. A socket wrench, comprising a cylindrical or tubular wrench body (1) and a handle (3) for twisting the wrench body (1), characterized in that, on the bottom surface of the wrench body (1) At least two protruding parts (2) are formed protruding outward in the axial direction, and all the protruding parts (2) are symmetrically arranged with respect to the axis of the wrench body (1).

2 . The socket wrench according to claim 1 , wherein a through hole ( 11 ) is set in the middle or upper part of the wrench body ( 1 ), and the handle ( 3 ) is detachably mounted on the wrench. 3 . into the through hole (11).

3 . The socket wrench according to claim 2 , wherein two through holes ( 11 ) are set in the middle or upper part of the wrench body ( 1 ), and the handle ( 3 ) passes through in sequence. 4 . through the two through holes (11); the connecting line of the two through holes (11) intersects with the axis of the wrench body (1).

4. The socket wrench according to claim 2, wherein the diameter of the through hole (11) is equal to one tenth of the length of the wrench body (1).

5. The socket wrench according to claim 2, wherein the distance between the center of the through hole (11) and the top edge (12) of the wrench body (1) is equal to the distance between the wrench body (12). 1) One-tenth of the length.

6 . The socket wrench according to claim 1 , wherein a transition angle ( 4 ) is formed between the raised portion ( 2 ) and the bottom surface of the wrench body ( 1 ). 7 .

7. The socket wrench according to any one of claims 1 to 5, wherein the width L of the raised portion (2) is greater than the height S thereof.

8. The socket wrench according to any one of claims 1 to 5, characterized in that a wear-resistant layer is formed on the outside of the raised portion (2).

9. The socket wrench according to any one of claims 1 to 5, wherein the wrench body (1) is a hollow tubular structure, and a hexagonal hole is formed on the inner wall of the wrench body (1) or dodecagonal hole.