CN112045608A

CN112045608A - Exempt from laborsaving spanner of regulation type

Info

Publication number: CN112045608A
Application number: CN202010913288.7A
Authority: CN
Inventors: 沈超锋
Original assignee: Huzhou Yuebin Intelligent Technology Co ltd
Current assignee: Huzhou Yuebin Intelligent Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2020-12-08

Abstract

The invention belongs to the field of hardware tools, and particularly relates to an adjustment-free labor-saving wrench which comprises a wrench head in a shape of a flat cylinder, wherein the lower side wall of the wrench head is inwards sunken to form a liquid storage tank filled with electrorheological fluid, an elastic membrane is connected to the notch of the liquid storage tank in a sealing manner, a rotary table is rotatably connected to the inner bottom surface of the liquid storage tank, a plurality of horizontally arranged magnet blocks are arranged at the upper end of the rotary table, a conductive layer is fixedly connected to the lower side wall of the rotary table, a plurality of parallel conductive wires are fixedly embedded in the rotary table, a circuit formed by the plurality of conductive wires and the conductive layer form a conduction loop, a rotary shaft is rotatably connected to the upper side wall of the rotary table through a coil. In the invention, when the electrorheological fluid is electrified and solidified, the electrorheological fluid in the clamping groove is solidified, and the electrorheological fluid in the clamping groove is communicated with the electrorheological fluid in the fluid storage groove, so that the integrity of the electrorheological fluid and the whole handle rod can be further improved.

Description

Exempt from laborsaving spanner of regulation type

Technical Field

The invention belongs to the field of hardware tools, and particularly relates to an adjustment-free labor-saving wrench.

Background

Various types of hardware tools are frequently used in production and life, the hardware tools are greatly convenient and fast for people's life, the wrench is a common mounting and dismounting tool, and is a hand tool for screwing bolts, screws, nuts and other threads to tightly hold openings or trepanning fasteners of the bolts or the nuts by utilizing a lever principle.

To most traditional spanners, need adjust the distance between the tooth and the fixed tooth on the spanner according to the size of nut when using, when the nut that needs a plurality of sizes are different rotates, need frequent regulation movable tooth in order to be suitable for various nuts, it is comparatively inconvenient during the use, moreover, most traditional spanners need use great power just can rotate when meetting fixed tighter nut, comparatively difficultly during the use.

Therefore, we propose an adjustment-free labor-saving wrench to solve the above problems.

Disclosure of Invention

The invention aims to provide an adjustment-free labor-saving wrench which is more convenient to use, aiming at the problem that most of traditional wrenches are inconvenient to use.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an exempt from laborsaving spanner of regulation type, is including being the cylindric spanner head of flat, the lower lateral wall of spanner head inwards caves in and forms inside reservoir that contains electrorheological fluids, the notch department sealing connection of reservoir has the elastic membrane, the interior bottom surface of reservoir rotates and is connected with the carousel, the upper end of carousel is equipped with the magnet piece that a plurality of levels set up, the lower lateral wall fixedly connected with conducting layer of carousel, the carousel internal fixation inlays and is equipped with many parallelly connected conductive wire that sets up, many the circuit that conductive wire constitutes switches on the return circuit with the conducting layer, the last lateral wall of carousel rotates through the coil spring and is connected with the pivot, the other end fixedly connected with of pivot dwang that the level set up, the other end of dwang has the handle bar through telescopic machanism swing joint.

The invention has the beneficial effects that:

the lower end of the wrench head is sleeved on the nut, the nut is sunk into the liquid storage tank, the handle rod is rotated, the rotating disc can drive the plurality of conductive wires to cut the magnetic induction lines of the magnet blocks, so that the conductive layers generate current, the electrorheological fluid becomes solid when being electrified, and then the electrorheological fluid and the wrench head form a whole, and the nut is clamped in the solidified electrorheological fluid, so that the electrorheological fluid wrench is suitable for nuts of various specifications, and frequent adjustment is not needed.

In the above regulation-free labor-saving wrench, the lower side wall of the rotary table is recessed inwards to form a plurality of clamping grooves communicated with the liquid storage tank.

When the electrorheological fluid is electrified and solidified, the electrorheological fluid in the clamping groove is solidified, and the electrorheological fluid in the clamping groove is communicated with the electrorheological fluid in the liquid storage groove, so that the integrity of the electrorheological fluid and the whole handle rod can be further improved.

In foretell laborsaving spanner of regulation type exempts from, telescopic machanism includes that fixed connection keeps away from the telescopic link of pivot one end at the dwang, be equipped with the slip chamber in the handle bar, the telescopic link is kept away from the one end of dwang and is extended to the slip intracavity setting and with the sealed sliding connection in slip chamber, be equipped with in the wrench head with dwang and telescopic link assorted rotation groove, be equipped with a plurality of gasbags on the lateral wall of handle bar, it is a plurality of the gasbag all communicates through pipe and slip chamber.

When rotating the handle bar hard, the gasbag on the handle bar can be extruded to the hand, and the gas in the gasbag is conducted the slip intracavity through the pipe, and atmospheric pressure can push the telescopic link to the outside of sliding chamber to increased the length of whole handle bar, known by lever principle, the power arm increases can be effectively laborsaving, more laborsaving during the use spanner.

In the above regulation-free labor-saving wrench, the notch of the rotation groove is rectangular.

When the rotating rod rotates by a certain angle in the rotating groove, the rotating rod can rotate and reset under the driving of the coil spring at the other end of the rotating shaft, and the nut is rotated by rotating the handle rod back and forth.

In foretell laborsaving spanner of regulation-free type, the notch of rotating the groove is cyclic annular setting, equidistance fixedly connected with is many to the inside spacing bag that contains non-Newtonian fluid in the notch of rotating the groove.

When the dwang of rapid rotation and spacing bag collide violently, can make the non-Newton fluid in the spacing bag solid attitude in the twinkling of an eye to carry on spacingly to the dwang, after the dwang stops down, the non-Newton fluid in the spacing bag can be liquidized again, and the dwang just can rotate in the original direction of rotation again in the same direction, need not to make a round trip to rotate the dwang to two directions, and is more convenient during the use.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment 1 of an adjustment-free labor-saving wrench according to the present invention;

FIG. 2 is a schematic view of an internal structure of a wrench head of an embodiment 1 of the adjustment-free power wrench of the present invention;

FIG. 3 is a schematic diagram showing the arrangement of a plurality of magnet blocks inside the handle head and a plurality of conductive wires inside the rotary table in embodiment 1 of the adjustment-free labor-saving wrench;

FIG. 4 is a schematic view of an external structure of a handle head in embodiment 1 of the adjustment-free labor-saving wrench;

fig. 5 is a schematic view of an external structure of a handle head in embodiment 2 of the adjustment-free labor-saving wrench.

In the figure, a wrench head 1, a liquid storage tank 2, an elastic membrane 3, a rotating disk 4, a magnet block 5, a conductive layer 6, a conductive wire 7, a coil spring 8, a rotating shaft 9, a rotating rod 10, a handle rod 11, a clamping groove 12, a telescopic rod 13, a sliding cavity 14, a rotating groove 15, an air bag 16, a catheter 17 and a limiting bag 18 are arranged.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1-4, an adjustment-free labor-saving wrench comprises a wrench head 1 which is in a flat cylindrical shape, wherein the lower side wall of the wrench head 1 is inwards sunken to form a liquid storage tank 2 which is internally filled with electrorheological fluid, an elastic membrane 3 is hermetically connected to the notch of the liquid storage tank 2, the elastic membrane 3 has better deformability, can be attached to the surface of a nut sunken in the liquid storage tank 2, can be suitable for nuts of various specifications, does not need to be frequently adjusted, and is time-saving and labor-saving when in use.

The interior bottom surface of reservoir 2 rotates and is connected with carousel 4, the upper end of carousel 4 is equipped with the magnet piece 5 of a plurality of levels setting, the distribution of polylith magnet piece 5 in wrench end 1 is shown in fig. 3, the lower lateral wall fixedly connected with conducting layer 6 of carousel 4, carousel 4 internal fixation inlays and is equipped with many parallel arrangement's conductive wire 7, every conductive wire 7 can both form a closed circuit that switches on, when carousel 4 rotates, the magnetic flux in a plurality of circuit that switches on can be continuous changes, thereby produce electric current, the distribution of many conductive wire 7 in carousel 4 is shown in fig. 3.

It should be mentioned that the lower side wall of the rotating disc 4 is recessed inwards to form a plurality of clamping grooves 12 communicated with the liquid storage tank 2, and as the electrorheological fluid in the clamping grooves 12 is communicated with the electrorheological fluid in the liquid storage tank 2, the integrity of the electrorheological fluid and the whole handle rod 11 can be further improved.

The circuit composed of a plurality of conductive wires 7 and the conductive layer 6 form a conducting loop, the upper side wall of the rotary table 4 is rotatably connected with a rotating shaft 9 through a coil spring 8, and the other end of the rotating shaft 9 is fixedly connected with a rotating rod 10 which is horizontally arranged.

The other end of dwang 10 has handle bar 11 through telescopic machanism swing joint, it is concrete, telescopic machanism includes that fixed connection keeps away from the telescopic link 13 of pivot 9 one end at dwang 10, be equipped with sliding chamber 14 in the handle bar 11, telescopic link 13 keeps away from the one end of dwang 10 and extends to sliding chamber 14 and set up and with sliding chamber 14 sealed sliding connection, when rotating handle bar 11 hard, atmospheric pressure can push the outside that sliding chamber 14 was pushed to telescopic link 13, the power arm increases effectively laborsavingly, it is more laborsaving during the use spanner.

The wrench head 1 is provided with a rotating groove 15 matching with the rotating rod 10 and the telescopic rod 13, it should be noted that the notch of the rotating groove 15 is rectangular, the side wall of the handle rod 11 is provided with a plurality of air bags 16, and the plurality of air bags 16 are all communicated with the sliding cavity 14 through a conduit 17.

The invention can be illustrated by the following operating modes:

when the wrench is used, the lower end of the wrench head 1 is sleeved on the nut, the elastic membrane 3 at the groove opening of the liquid storage tank 2 has good deformability, can be attached to the surface of the nut sunken in the liquid storage tank 2, can be suitable for nuts of various specifications, and does not need to be adjusted frequently.

Then rotate handle bar 11, the gasbag 16 on the handle bar 11 can be squeezed to the hand when rotating handle bar 11, the gas in the gasbag 16 conducts through pipe 17 in sliding chamber 14, atmospheric pressure can push lift-draw pole 13 to the outside of sliding chamber 14 to increased the distance between handle bar 11 and wrench end 1, known by lever principle, the power arm increases and can be effectively laborsaving, use this spanner of less power just, it is comparatively convenient to operate.

Can drive carousel 4 through dwang 10 and pivot 9 and rotate when rotating handle bar 11, pivoted carousel 4 can drive many conductive wires 7 and cut the magnetic induction line of magnet piece 5 and make conducting layer 6 produce electric current, just can become the solid when the electrorheological fluids circular telegram to form a whole with the spanner head, the nut joint is convenient for rotate the nut in the electrorheological fluids of solidification this moment.

The rotating rod 10 stops when rotating a certain angle in the rotating groove 15, and at this time, the rotating rod 10 is driven by the coil spring 8 at the other end of the rotating shaft 9 to rotate and reset, and the nut is rotated by rotating the handle rod 11 back and forth.

Example 2

As shown in fig. 5, the present embodiment is different from embodiment 1 in that: the notch of the rotating groove 15 is annularly arranged, and a plurality of pairs of limiting bags 18 containing non-Newtonian fluid are fixedly connected in the notch of the rotating groove 15 at equal intervals.

In this embodiment, when the dwang 10 of fast turn-round collides with spacing bag 18 acutely, can make the non-Newtonian fluid in the spacing bag 18 solid attitude in the twinkling of an eye to carry on spacingly to dwang 10, after dwang 10 stopped down, the non-Newtonian fluid in the spacing bag 18 can be liquidized again, and dwang 10 just can rotate in the same direction as original direction of rotation again, need not to make a round trip to rotate dwang 10 to two directions, and is more convenient during the use.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An adjustment-free labor-saving wrench comprises a wrench head (1) in a flat cylindrical shape, and is characterized in that the lower side wall of the wrench head (1) is inwards recessed to form a liquid storage tank (2) filled with electrorheological fluid, an elastic membrane (3) is hermetically connected at the opening of the liquid storage tank (2), a rotary table (4) is rotatably connected to the inner bottom surface of the liquid storage tank (2), a plurality of horizontally arranged magnet blocks (5) are arranged at the upper end of the rotary table (4), a conductive layer (6) is fixedly connected to the lower side wall of the rotary table (4), a plurality of parallel conductive wires (7) are fixedly embedded in the rotary table (4), a circuit formed by the plurality of conductive wires (7) and the conductive layer (6) form a conduction loop, a rotary shaft (9) is rotatably connected to the upper side wall of the rotary table (4) through a coil spring (8), and a horizontally arranged rotating rod (10) is fixedly connected to the other end of the rotary shaft, the other end of the rotating rod (10) is movably connected with a handle rod (11) through a telescopic mechanism.

2. An adjustment-free labor-saving wrench as claimed in claim 1, wherein the lower side wall of the rotary plate (4) is recessed inwardly to form a plurality of catching grooves (12) communicating with the reservoir (2).

3. The adjustment-free labor-saving wrench as claimed in claim 1, wherein the telescoping mechanism comprises a telescoping rod (13) fixedly connected to one end of the rotating rod (10) far away from the rotating shaft (9), a sliding cavity (14) is arranged in the handle rod (11), one end of the telescoping rod (13) far away from the rotating rod (10) extends into the sliding cavity (14) and is connected with the sliding cavity (14) in a sealing and sliding manner, a rotating groove (15) matched with the rotating rod (10) and the telescoping rod (13) is arranged in the wrench head (1), a plurality of air bags (16) are arranged on the side wall of the handle rod (11), and the air bags (16) are communicated with the sliding cavity (14) through a guide tube (17).

4. An adjustment-free power saving wrench as claimed in claim 3, wherein the notch of the rotation slot (15) is rectangular.

5. The adjustment-free labor-saving wrench as claimed in claim 4, wherein the slot opening of the rotating slot (15) is annularly arranged, and a plurality of pairs of limiting bags (18) containing non-Newtonian fluid are fixedly connected in the slot opening of the rotating slot (15) at equal intervals.