阅读说明：本技术 一种换头扳手 (Head-changing wrench ) 是由 孙艳 于 2019-09-23 设计创作，主要内容包括：一种换头扳手,包括柄座、扳头盒、扳头,所述柄座包括手柄、置头座,手柄一端固接置头座,扳头盒两侧卡道与手柄凹槽前端的卡轴滑动卡接,扳头盒内置相对应的手柄凹槽内,或竖起下穿卡轴下方开口,扳头盒槽内转接多个带扳头夹具,单个夹具可竖起定位摆放,扳头插入置头座环套空腔或回归夹具,置头座的翻盖可盖合抵压扳头或打开,本发明的多个扳头夹放在扳头盒内且与柄座一体存放,或多个扳头直接置放在柄座凹槽内携带不易丢失；扳头盒、夹具分别竖起与置头座定位切换扳头容易；扳手扁平不占空间；本发明操作容易,使用灵活。(A head-changing spanner comprises a handle base, a spanner box and a spanner head, wherein the handle base comprises a handle and a head-placing base, one end of the handle is fixedly connected with the head-placing base, clamping channels on two sides of the spanner box are in sliding clamping connection with a clamping shaft at the front end of a handle groove, the spanner box is internally provided with corresponding handle grooves, or an opening is arranged below the clamping shaft in a vertical and downward penetrating manner, a plurality of clamps with the spanner head are connected in grooves of the spanner head box in a rotating manner, a single clamp can be arranged in a vertical and positioned manner, the spanner head is inserted into a ring sleeve cavity of the head-placing base or returns to the clamp, and a turnover cover of the head-placing base can cover and press the spanner head or open the spanner head; the wrench box and the clamp are respectively erected and the positioning and switching of the head seat are easy; the wrench is flat and does not occupy space; the invention has easy operation and flexible use.)

1. A head-changing wrench comprises a handle seat, a wrench head box and a wrench head, and is characterized in that: the handle seat comprises a handle and a placing head seat, one end of the handle is fixedly connected with the placing head seat, clamping channels on two sides of the wrench box are in sliding clamping connection with a clamping shaft at the front end of a handle groove, the wrench box is internally provided with a corresponding handle groove, or an opening is arranged below the clamping shaft in a standing and downward penetrating mode, a plurality of clamps with wrench heads are connected in a wrench box groove in a rotating mode, a single clamp can be placed in a standing and positioning mode, the wrench heads are inserted into a cavity of the placing head seat ring sleeve or return to the clamp, and a turning cover of the placing head seat can be covered and pressed.

2. The wrench of claim 1, wherein: the structure is that vertical plates are fixedly connected to the front side and the two sides between two parallel clamping plates, the ring sleeve is vertically provided with a through opening, the cavity of the ring sleeve is provided with a switching flip, and the lower part of the ring sleeve is provided with the concave platform.

3. A wrench as claimed in claim 2, wherein: the through opening is larger than the wrench head sleeve opening with the largest model.

4. The wrench of claim 1, wherein: downward openings are formed in the rear end of the concave platform of the head placing seat and the front end of the handle groove, clamping shafts are arranged on the openings, and bosses are reinforced on handle bodies on two sides of the openings.

5. The wrench of claim 1, wherein: the periphery of the rectangular bottom surface of a single clamp is fixedly connected with a clamping piece, the opening is a slope surface, the upper clamping piece is provided with a strip-shaped opening, the length of the bottom surface of the clamp corresponds to the width of the box, the width corresponds to the height of the box, a plurality of clamps are connected to the bottom of the box in a switching mode, and the spacing distance is larger than the bottom surface of the clamp.

6. The wrench of claim 4, wherein: a magnetic piece or an elastic piece is arranged between the clamp and the box bottom of the wrench box, and the clamp is attached to the box bottom in a natural state.

7. The wrench of claim 1, wherein: the spanner heads with different types of openings are internally provided with corresponding ring sleeve cavities, the clamping bolts of the spanner heads are clamped at the notches of the upper clamping plates of the ring sleeves, or the rear ends of the spanner heads are clamped in the inner cavities of the clamps, or a plurality of clamps with marks are respectively internally arranged.

8. The wrench of claim 1, wherein: the wrench head box with the clamp placed horizontally is placed in a corresponding handle groove, the upper surface of the handle is flush, the wrench head box is erected and penetrates through the front end opening of the handle groove, a single clamp is vertically placed on the concave platform of the placing head seat in a positioning mode, and the wrench head is inserted into the ring sleeve cavity or retreats to the clamp.

9. The wrench of claim 1, wherein: the handle seat and the wrench head are made of hard metal materials, and the vertical walls of the placing head seat and the handle are thickened properly.

10. The utility model provides a head-changing wrench, includes handle seat, spanner, its characterized in that: the wrench head is arranged in a groove at the rear end of the handle seat, the wrench head can be taken out and inserted into the cavity of the handle seat or returned to the original position of the groove, the flip cover is closed, the front end of the flip cover abuts against the wrench head in the cavity, and the rear end of the flip cover covers the handle groove.

Technical Field

The invention belongs to the field of hand tools, and particularly relates to a wrench with a replaceable wrench head.

Background

Present set spanner has multiple model, can twist soon to different model screws, nevertheless need carry a lot of spanners during the use, it is easily lost to keep the degree of difficulty greatly, the spanner of set is the big size model difference of wrench head, the body of rod is the same, it can the increase cost to purchase the complete set spanner, also have the innovation of wrench head changing among the prior art, like national utility model patent "wrench head changing" (application number 201721371082.6), adopt the downthehole installation assorted wrench head mode of splining at the spanner main part, it is big to change both ends in turn through the chucking structure, little wrench head, but this technical scheme can not an organic whole carry a plurality of wrench heads, the wrench head model of change is less, the result of use has been influenced.

Disclosure of Invention

The invention adopts the following technical scheme:

A head-changing wrench comprises a handle base, a wrench head box and a wrench head, wherein the handle base comprises a handle and a head-placing base, one end of the handle is fixedly connected with the head-placing base, clamping channels on two sides of the wrench head box are in sliding clamping connection with a clamping shaft at the front end of a handle groove, the wrench head box is internally provided with corresponding handle grooves or is provided with an opening below the clamping shaft in an upright mode, a plurality of clamps with the wrench head are connected in grooves of the wrench head box in a rotating mode, a single clamp can be arranged in an upright mode in a positioning mode, the wrench head is inserted into a cavity of a ring sleeve of the head-placing base or returns to the clamp.

The structure is that vertical plates are fixedly connected to the front side and the two sides between two parallel clamping plates, the ring sleeve is vertically provided with a through opening, the cavity of the ring sleeve is provided with a switching flip, and the lower part of the ring sleeve is provided with the concave platform.

Wrench socket with opening larger than maximum model

Downward openings are formed in the rear end of the concave platform of the head placing seat and the front end of the handle groove, clamping shafts are arranged on the openings, and bosses are reinforced on handle bodies on two sides of the openings.

The periphery of the rectangular bottom surface of a single clamp is fixedly connected with a clamping piece, the opening is a slope surface, the upper clamping piece is provided with a strip-shaped opening, the length of the bottom surface of the clamp corresponds to the width of the box, the width corresponds to the height of the box, a plurality of clamps are connected to the bottom of the box in a switching mode, and the spacing distance is larger than the bottom surface of the clamp.

A magnetic piece or an elastic piece is arranged between the clamp and the box bottom of the wrench box, and the clamp is attached to the box bottom in a natural state.

The spanner heads with different types of openings are internally provided with corresponding ring sleeve cavities, the clamping bolts of the spanner heads are clamped at the notches of the upper clamping plates of the ring sleeves, or the rear ends of the spanner heads are clamped in the inner cavities of the clamps, or a plurality of clamps with marks are respectively internally arranged.

The wrench head box with the clamp placed horizontally is placed in a corresponding handle groove, the upper surface of the handle is flush, the wrench head box is erected and penetrates through the front end opening of the handle groove, a single clamp is vertically placed on the concave platform of the placing head seat in a positioning mode, and the wrench head is inserted into the ring sleeve cavity or retreats to the clamp.

The handle seat and the wrench head are made of hard metal materials, and the vertical walls of the placing head seat and the handle are thickened properly.

The wrench head is arranged in a groove at the rear end of the handle seat, the wrench head can be taken out and inserted into the cavity of the handle seat or returned to the original position of the groove, the flip cover is closed, the front end of the flip cover abuts against the wrench head in the cavity, and the rear end of the flip cover covers the handle groove.

The technical effect is achieved.

A plurality of wrenches are clamped in the wrench box and stored integrally with the handle seat, or a plurality of wrenches are directly placed in the groove of the handle seat and are not easy to lose; the wrench box and the clamp are respectively erected and the positioning and switching of the head seat are easy; the wrench is flat and does not occupy space; the invention has easy operation and flexible use.

Drawings

Fig. 1 is a perspective view of a trigger box with a built-in stem base according to the present invention.

FIG. 2 is a perspective view of the wrench box of the present invention vertically positioned with the handle base and replaced with a wrench.

Fig. 3 is a partial perspective view of the wrench socket built-in according to the present invention.

FIG. 4 is a partial perspective view of the wrench box and the handle base of the present invention for vertical positioning and replacement of the wrench.

FIG. 5 is a top view of the wrench box of the present invention in a recessed groove of a flat stem base.

FIG. 6 is a top view of the present invention wrench box positioned perpendicular to the stem base with the clamp erected on the recess.

Fig. 7 is a front section view in longitudinal section of the present invention.

FIG. 8 is a top view of the trigger with the recess of the stem base of the present invention.

Reference numerals

The handle holder 1, the handle 11, the groove 111, the opening 112, the boss 113, the clamping shaft 114, the head holder 12, the ring sleeve 121, the through opening 1211, the clamping plate 1212, the cavity 1213, the bayonet 1221, the concave platform 122, the flip 123, the stopper 1231, the locking piece,

The wrench box 2, the box frame 21, the clamping channel 211, the box bottom 212, the clamp 22,

A wrench head 3, a sleeve opening 31 and a clamping bolt 32.

Detailed description of the preferred embodiments.

The invention is described in detail below with reference to the accompanying drawings, which respectively illustrate two technical solutions.