CN2252681Y

CN2252681Y - Tenon box spanner

Info

Publication number: CN2252681Y
Application number: CN 95241125
Authority: CN
Inventors: 徐锐江
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-21
Filing date: 1995-12-21
Publication date: 1997-04-23
Anticipated expiration: 2005-12-21

Abstract

The utility model belongs to the common hand tool. The utility model has the structure that the head part of a handle is provided with two circular holes which are mutually perpendicular and communicated with each other. One hole of the two circular holes is provided with a ratchet wheel body, one head of the ratchet wheel body is a tenon, the other end is a box head, the join of one head of the tenon and the hole is inserted with a circlip for shaft, the other hole is provided with a mobile positioning pin, and the mobile positioning pin is provided with teeth and a positioning slot; a plurality of rectangular angle teeth which can be meshed with the teeth of the mobile positioning pin are arranged around the axial middle part of the ratchet wheel body, the longitudinal center line of the handle is provided with a hole which is provided with a positioning compression spring and a steel ball, and the steel ball is connected with the positioning slot. The utility model can be used for loading and unloading of iron towers, high speed highway guardrails, and bolt anti-theft covers, and ordinary manual operation.

Description

Tenon box spanner

The utility model belongs to hand-held tool commonly used.

Bolted instrument now commonly used has box spanner, adjustable wrench, and fork spanner, double offset ring spanner, there are many problems in inner hexagon spanner and double end socket wrench etc. with upper ejector lever:

One. often with the collet head of several different sizes, the ratchet trigger piece reaches other enclosure group and becomes a cover box spanner, and with iron case splendid attire, object is assorted, and weight is big, and is very inconvenient at work;

Two. often with the dimensions combination of Mx and Mx+1, the needs of specific project installation such as incompatibility iron tower or freeway guardrail will be with the spanner more than two in the work at two of double ended spanner;

Three. the opening size of adjustable wrench can not secure fixation, usually moves about, and skids easily in high-altitude application and accidentally drops, and causes peril;

Four. the width of adjustable wrench and fork spanner, gauge are all bigger, when crawl space and low-angle, can stretch and can't use;

Five. above various spanners all can not be used for the anti-installation of unloading cover of bolt;

Six. though double end socket wrench can be used in the anti-installation of unloading cover of bolt, can adapt to the needs of specific project installation such as iron tower or freeway guardrail, its two sleeve dimensions fixed combination, it is inflexible to arrange in pairs or groups, thereby has limited its scope of application.

The purpose of this utility model is to overcome the defective that exists with upper ejector lever, provide a kind of and can be used for iron tower and freeway guardrail is installed and used, but and the collocation of two sleeve dimensions flexible combination, the Tenon box spanner that the scope of application is wider.

Below in conjunction with accompanying drawing, the utility model is further specified it.

Accompanying drawing 1 is an external structure of the present utility model;

Accompanying drawing 2 is these practical A-A cutaway views;

Accompanying drawing 3 is B-B cutaway views of the present utility model;

Among the figure: 1. tenon; 2. collet head; 3. alignment pin; 4. steel ball; 5. compression spring; 6. trigger piece; 7. circlip; 8. hole, garden; 9. hole, garden; 10. ratchet wheel body; 11. rectangular angular tooth; 12. alignment pin tooth; 13. locating slot; 14. hole; 15. hole.

External structure of the present utility model is seen accompanying drawing 1, mainly by tenon (1), and collet head (2), sour jujube Wheel body (10), running fix pin (3) and trigger piece (6) form.

Internal structure of the present utility model is seen the A-A cutaway view of accompanying drawing 1, i.e. accompanying drawing 2 and accompanying drawing 1 The B-B cutaway view, namely accompanying drawing 3. Head at trigger piece (6) has two mutually vertical gardens that also are communicated with Hole (8), (9); Garden cylindricality ratchet wheel body (10) is housed in hole (8); Stretch at two of ratchet wheel body (10) Go out the hole, garden (8) of trigger piece (6), one is square tenon (1), and the other end is collet head (2); The junction of (1) one of tenon and hole (8) studs with circlip for shaft (7); In hole (9), be equipped with Two location pin tooths (12) and locating slot (13) are arranged on running fix pin (3) the running fix pin (3); Sour jujube One week of axial middle part of wheel body (10) is equipped with several rectangular angular teeth (11), can with running fix pin (3) On any location pin tooth (12) interlock; On the longitudinal centre line of trigger piece (6), hang down with hole (9) Headed straight for a hole (14), in-built location Compress Spring (5) and steel ball (4), steel ball (4) and locating slot (13) connect; Afterbody at trigger piece (6) has hole, garden (15), wherein can fill bracelet.

Use of the present utility model is as follows: will join tight collet head with tenon (1), or sleeve (2) packs into the nut of bolt, then running fix pin (3) is dialled to right-hand, spanner can turn clockwise, promptly just then bolt on; Dial to left, spanner can be rotated counterclockwise, i.e. counter-rotating, and under fall bolt.Also running fix pin (3) can be fixed on the center, grasp tenon (1) or collet head (2), twisting ratchet wheel body (10) rotates to any direction, i.e. idle running, at this moment as circlip for shaft (7) is unloaded, just desirable bottom ratchet wheel body (10) is changed the ratchet wheel body that has other specification tenon and collet head again and is loaded onto.

The symmetrical both sides of the utility model tenon have microscler shallow slot, and there is a garden groove on its top.

Advantage of the present utility model is:

1. axial alignment pin tooth (12) and the locating slot (13) on rectangular angular tooth (11) and the running fix pin (3) in one week of middle part of ratchet wheel body (10), under the effect of location compression spring (5) and steel ball (4), constitute ratchet device, ratchet wheel body (10) can just be changeed, counter-rotating, idle running, and can be in crawl space and the continued operation of low-angle occasion;

2. in that construction bolt is anti-when unloading cover, running fix pin (3) is fixed on the center, be used to hold tenon (1) earlier or collet head (2) screws bolt, alignment pin (3) is dialled to just changeing again, promptly available Tenon box spanner tightens the anti-bolt that unloads in the cover;

3. in the installation of iron tower and freeway guardrail, only need be with a Tenon box spanner to get final product spry and light convenience;

4. in operation, can in the hole, garden (15) of trigger piece (6) afterbody, mix becket bridle, be placed on wrist or the waistband, when work high above the ground, can not come off high safety;

5. all collet heads that has the mortise that matches with tenon (1), no matter what size shape, all can with the supporting use of the utility model, make the sleeve dimensions flexible combination at ratchet wheel body (10) two, more enlarged the scope of application.

In a word, the utility model is that iron tower is installed, and freeway guardrail is installed, and the anti-cover that unloads of bolt is installed, and the installation of other particular artifact, and general manual operations in any case provide a kind of multipurpose high-efficiency rate simple and efficient safe hand-held tool.

Claims

1. Tenon box spanner of being made up of tenon, collet head, trigger piece is characterized in that: the head at trigger piece (6) has two vertical mutually and be communicated with hole, garden (8), (9); Garden cylindricality ratchet wheel body (10) is housed in hole (8); The hole, garden (8) of trigger piece (6) is stretched out at two of ratchet wheel body (10), and one is square tenon (1), and the other end is collet head (2); In (1) one of tenon junction, stud with circlip for shaft (7) with hole (8); Running fix pin (3) is housed in hole (9), two alignment pin teeth (12) and locating slot (13) are arranged on the running fix pin (3).

2. spanner according to claim 1 is characterized in that: one week of axial middle part of ratchet wheel body (10) is equipped with several rectangular angular teeth (11), can with any alignment pin tooth (12) interlock on the running fix pin (3); On the longitudinal centre line of trigger piece (6), the vertical hole (14) that has with hole (9), in set a position compression spring (5) and a steel ball (4), steel ball (4) is connected with locating slot (13).