CN107053053A - A kind of inner hexagon spanner - Google Patents

Abstract

The invention discloses a kind of inner hexagon spanner, including driving end, rotary column, central rotating shaft and handle；The driving end is arranged on the top of rotary column；The handle is arranged on the afterbody of rotary column；The central rotating shaft is arranged on the inside of rotary column；Gear one, gear two and gear three are provided with the central rotating shaft；The driving end includes spanner pawl one, spanner pawl two, spanner pawl three and rack；The spanner, which grabs one, two, is oppositely arranged；Spanner grabs a front end and sets work plush copper, and rear end is connected with rack；The rack is engaged through rotary column with the gear one on central rotating shaft；The spanner pawl two and the structure of spanner pawl three are identical with spanner pawl one；The work plush copper formation circle shape of the paw one, spanner pawl two and spanner pawl three.Mechanical structure of the present invention, low-carbon environment-friendly.In use, only needing rotating wheel, driving end opening is adjusted, rotary handle can complete the dismounting work to hexagon socket head cap screw.

Description

A hex wrench

technical field

The invention relates to a wrench suitable for different types of inner hexagon bolts.

Background technique

Along with the general use of machinery, various sizes and types of hexagon socket head cap bolts also come out one after another, and people often need to use different types of hexagon socket cap wrenches when screwing these hexagon socket cap bolts. Therefore, when it is necessary to disassemble and assemble a machine with different types of hexagonal bolts, it is often necessary to take out a complete set of hexagonal wrenches and constantly replace and use them to complete the work. This brings great inconvenience to people when using. According to the actual usage situation in life, a hexagonal wrench with adjustable opening size is specially designed.

Contents of the invention

The purpose of the present invention is to provide a wrench suitable for different types of hexagon socket bolts in order to overcome the deficiencies of the prior art.

In order to achieve the above object, the technical solution adopted in the present invention is: a hexagon socket wrench, comprising a wrench head, a rotating column, a central shaft and a handle; the wrench head is arranged on the top of the rotating column; the handle is arranged on the top of the rotating column The tail part forms a T-shape with the rotating column; the central rotating shaft is set inside the rotating column; the central rotating shaft is provided with gear one, gear two and gear three; the rotating column is provided with an operation window, which is convenient for rotating the center The rotating shaft; the wrench head includes a wrench claw one, a wrench claw two, a wrench claw three and a rack; there are two wrench claws, which are arranged oppositely; The rack passes through the rotating column and engages with the first gear on the central shaft; the structure of the wrench claw 2 and the wrench claw 3 is the same as that of the wrench claw 1. and the rack three are respectively engaged with the second gear and the third gear; the working protrusions of the first claw, the second spanner claw and the third spanner claw form a circle shape.

Preferably, at the position of the operation window, a rotating wheel is arranged on the central rotating shaft.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

An inner hexagonal wrench according to the solution of the present invention has a mechanical structure and is low-carbon and environment-friendly. When in use, you only need to rotate the wheel, adjust the opening of the wrench head, and then rotate the handle to complete the disassembly and assembly of the hexagonal bolts after corresponding to the inner hexagonal wrench to be screwed. This product is reliable in action and is suitable for occasions where hexagon socket bolts need to be disassembled frequently.

Description of drawings

Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:

Accompanying drawing 1 is the front view structure schematic diagram of a kind of Allen wrench of the present invention;

Accompanying drawing 2 is the sectional view of D-D plane in accompanying drawing 1;

Accompanying drawing 3 is the sectional view of A-A, B-B, C-C plane in accompanying drawing 1;

Accompanying drawing 4 is the left view structural representation of a kind of Allen wrench of the present invention;

Among them: 1. Wrench head; 2. Rotary column; 3. Center shaft; 4. Handle; 5. Gear one; 6. Gear two; 7. Gear three; 8. Operation window; 9. Wheel; 11. Wrench claw 1; 12, two wrench claws; 13, three wrench claws; 14, rack; 15, working convex head.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Accompanying drawing 1-4 is a kind of Allen wrench of the present invention, comprises wrench head 1, rotating column 2, central rotating shaft 3 and handle 4; Said wrench head 1 is arranged on the top of rotating column 2; Said handle 4 It is arranged at the tail of the rotating column 2 and forms a T shape with the rotating column 2; the central rotating shaft 3 is arranged inside the rotating column 2; the central rotating shaft 3 is provided with a gear one 5, a gear two 6 and a gear three 7; The rotating column 2 is provided with an operation window 8, which is convenient to rotate the central shaft 3; the wrench head 1 includes a wrench claw one 11, a wrench claw two 12, a wrench claw three 13 and a rack 14; the wrench claw one 11 has Two, opposite to each other; the front end of wrench claw 11 is provided with a working protrusion 15, and the rear end is connected with rack 14; Two 12 and wrench claw three 13 have the same structure as wrench claw one 11 and there are also two, which are respectively connected to the rack, and the rack three is respectively engaged with gear two 6 and gear three 7; said hand claw one 11 and wrench claw two 12 The working nose 15 of wrench claw three 13 forms a circle shape; at the position of the operation window 8, the central rotating shaft 3 is provided with a runner 9 .

When in use, put the wrench head 1 into the inner hexagonal bolt, and rotate the runner 9 counterclockwise, then the gear one 5, gear two 6 and gear three 7 rotate to drive the rack 14, so that the wrench claw one 11, the wrench claw two 12, The three wrench claws 13 move outward, and the six wrench claws move to the outside of the rotating column 2, so the circle formed by the working protrusion 15 of the wrench claw begins to expand until the working protrusion 15 is against the inside of the hexagon socket bolt. At this time, Just hold the handle 4 and rotate it hard, the torque is transmitted to the wrench head 1 through the rotating column 2, and finally the wrench head 1 is transmitted to the hexagon socket bolt to be unscrewed, and the action of unscrewing the hexagon socket bolt is completed.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (2)

1. a kind of inner hexagon spanner, it is characterised in that：Including driving end, rotary column, central rotating shaft and handle；The driving end is set On the top of rotary column；The handle is arranged on the afterbody of rotary column, with rotary column formation T fonts；The central rotating shaft is arranged on rotary column Inside；Gear one, gear two and gear three are provided with the central rotating shaft；Action pane is provided with the rotary column, just In center of rotation rotating shaft；The driving end includes spanner pawl one, spanner pawl two, spanner pawl three and rack；The spanner, which grabs one, to be had Two, it is oppositely arranged；Spanner grabs a front end and sets work plush copper, and rear end is connected with rack；The rack passes through rotary column and center Gear one in rotating shaft is engaged；The spanner pawl two and structure of spanner pawl three is identical with spanner pawl one also two, respectively with tooth Bar two and rack three are connected, and rack two and rack three are engaged with gear two and gear three respectively；The paw one, the He of spanner pawl two The work plush copper formation circle shape of spanner pawl three.

2. a kind of inner hexagon spanner according to claim 1, it is characterised in that：At the position of the action pane, in Runner is provided with heart rotating shaft.