CN106263414B

CN106263414B - It is easy to instrument to carry the expansion locking device used

Info

Publication number: CN106263414B
Application number: CN201610859367.8A
Authority: CN
Inventors: 李雁
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-09-28
Filing date: 2016-09-28
Publication date: 2018-02-02
Anticipated expiration: 2036-09-28
Also published as: CN106263414A

Abstract

It is easy to instrument to carry the expansion locking device used the present invention relates to a kind of, it includes device case and flexible body provided with telescopic cavity and telescopic mouth, flexible one end top surface of the body away from telescopic mouth is provided with neck, device case is provided with the button switch that can inwardly compress and upspring automatically and the first lever and the second lever that can be rotated under button switch drive, first lever one end is connected with button switch side, middle part is rotatablely connected with device case, other end bottom is provided with can be raised with the first of neck grafting when flexible body part stretches out telescopic mouth, second lever one end is connected with button switch opposite side, middle part is rotatablely connected with device case, other end bottom is provided with can be raised with the second of neck grafting when flexible body is fully retracted into device case；Compared with prior art, product of the present invention uses more Portable safety, and compact-sized, good appearance, the simple cost of manufacture processing is low, effectively makes up the existing straight hidden danger and defect for jumping formula machine tool.

Description

It is easy to instrument to carry the expansion locking device used

Technical field

The present invention relates to machining tools art, more particularly to a kind of expansion locking device for being easy to instrument carrying to use.

Background technology

In real life, for the ease of transportation, some machine tools, which can be typically fabricated to, can be inserted into hiding work Position formula machine tool, folding machine tool, foldable jump formula machine tool or scalable hiding working position formula certainly Machine tool, such machine tool can not only greatly save accommodation space, be convenient for carrying, and can be hidden by working position Hide, reduce the danger of working position.

Wherein, it can be inserted into after hiding working position formula machine tool can hide working position insertion and carry again, use When working position is extracted again, such as insert concealed key etc., its is simple in construction, and aesthetics is high；But hide plug-in type machinery Instrument must use both hands to separate, and not only in-convenience in use, and work long hours and can mutually wear, so that lose original Work energy.

Folding machine tool can be folded first reduce volume after carry again, open again during use, such as：Fold Knife etc.；But common folding machine tool must both hands assistance opened it with external force, because of the principle of part interaction, grow Abrasion can be produced during time service, so that loosening, or even loses original function；

It is foldable from jump formula machine tool can first fold reduce volume after carry again, can automatically spring open during use, example Such as：Lifts is folded, folds and jumps key etc., singlehanded can be spread out by button during use, it is more convenient, but it is former to fold recovery Position, one-handed performance, mostly need both hands progress with regard to very inconvenient；In addition, its when carrying can because touching button unintentionally and Be automatically popped up, there is potential safety hazard, if plus safety lock can increase machine tool complexity again, in-convenience in use.

Scalable hiding working position formula machine tool can shrink working position hide after carry again, can be single during use Hand is automatically popped up by button, i.e., directly jumps formula machine tool, such as：Switchblade, straight lifts etc., its property easy to use, Aesthetics etc. is much higher than first three machine tool；But existing straight formula machine tool of jumping not only compares again in structure Miscellaneous, part is various, and manufacturing cost is high, is not easy to safeguard, due also to internal force reason easily produces potential safety hazard.

The content of the invention

The technical problems to be solved by the invention be to provide a kind of more compact structure, manufacturing cost it is lower, production and processing more Simply, using the more convenient safe expansion locking device for being easy to instrument carrying to use, existing straight jump formula machine tool is made up Hidden danger and defect.

The technical scheme that the present invention solves above-mentioned technical problem is as follows：

A kind of to be easy to instrument to carry the expansion locking device used, it includes device case and can partly stretch out the dress Put housing or be fully retracted into the flexible body of described device housing, the inside of described device housing, which is provided with, can accommodate the flexible sheet The telescopic cavity of body, the front end of described device housing, which is provided with, is available for the flexible body part to stretch out the flexible of described device housing Mouthful, one end top surface of the flexible body away from the telescopic mouth is provided with the neck for being used for fixing locked flexible body, the dress Housing is put to be provided with the button switch that can inwardly compress and upspring automatically and under button switch drive while can rotate The first lever and the second lever, first lever and the second lever are respectively positioned on the top of the flexible body, and described One lever is located at the button switch and is located at the another of the button switch close to the side of the telescopic mouth, second lever Side, one end of first lever are connected with the side of the button switch, and its middle part is connected with described device housing into rotation, its Other end bottom be provided with can when the flexible body part stretches out the telescopic mouth of described device housing with the neck grafting First is raised, and one end of second lever is connected with the opposite side of the button switch, and its middle part turns with described device housing Dynamic connection, its other end bottom be provided with can when the flexible body is fully retracted into described device housing with the neck grafting Second is raised.

Compared with prior art, the beneficial effects of the invention are as follows：

Product of the present invention is mainly by device case, button switch, the first lever, the second lever and the flexible body group of elasticity Into, only by button switch operation can to realize the flexible and fixed of flexible body, and because no internal force moves, Be not in the danger of the accidental extending apparatus housing telescopic mouth of fixture, not only using simpler, convenient, fast, safe, and And part is more simplified, structure is compacter, and manufacturing cost is lower, production and processing it is simpler, and due to whole device outside Portion only has a telescopic mouth and button switch, more attractive in appearance, effectively compensate for the existing straight hidden danger for jumping formula machine tool and lacks Fall into.

On the basis of above-mentioned technical proposal, the present invention can also do following improvement.

As a kind of preferred embodiment of the present invention, the described first raised and the second raised cylindrical, square, ball Shape is hemispherical, and first lever and the second lever are in the vertical rotation in surface where the flexible body telescopic direction.

Beneficial effect using above-mentioned preferred scheme is：First is raised or the second raised grafting with neck is more convenient, Smoothly, when first is raised or second it is raised in it is horizontal cylindric, spherical or hemispherical when, not only its grafting with neck is more Simply, conveniently, smoothly, and its separation with neck is also simpler, conveniently, smoothly, first lever and the second lever In the vertical rotation in surface where the flexible body telescopic direction, the body that stretches flexible and first raised or second is convex Rise with the grafting of neck can it is simpler, conveniently, it is smooth.

As another preferred embodiment of the present invention, the top surface of described device housing is provided with and can install the button and open The button slot is stretched into the button slot of pass, the bottom of the button switch, and the bottom of the button slot, which is provided with, can make the button The spring that switch can upspring automatically after inwardly compressing, the opposite sides of the button slot, which is respectively equipped with, can facilitate first lever With the first slotted eye and the second slotted eye of the second lever rotation, the side of the button switch, which is provided with, can drive first lever to turn Dynamic first axle or the first jack, opposite side are provided with the second hinge or the second jack that can drive second lever rotation, One end of first lever passes through first slotted eye, and is hinged or stretches into first jack, institute with the first axle The one end for stating the second lever passes through second slotted eye, and is hinged or stretches into second jack with the second hinge.

Beneficial effect using above-mentioned preferred scheme is：Button slot as setting installs button switch, not only button slot Manufacture processing it is simpler, conveniently, and be more prone to realize the inside compression of button switch and upspring automatically, more just Just the first lever and the second lever, are easily driven in the vertical rotation in surface where flexible body telescopic direction.

As another preferred embodiment of the present invention, the vallecular cavity of the button slot is in the form of a column.

Beneficial effect using above-mentioned preferred scheme is：Simpler convenience is not only produced and processed, and button switch exists Inwardly compression is realized in button slot and is upspring automatically simpler, conveniently.

As another preferred embodiment of the present invention, the button slot by the first slotted eye and the second slotted eye with it is described Telescopic cavity is connected, and first lever, the second lever are respectively positioned in the telescopic cavity, and the middle part and second of first lever The middle part of lever is rotatablely connected by first rotating shaft and the second rotating shaft and the madial wall of described device housing respectively.

Beneficial effect using above-mentioned preferred scheme is：The cavity of telescopic cavity is bigger, more saves material, cost-effective, The rotation of first lever and the second lever is more flexible, and rotation space is bigger, but flexible body easily teetertotters, and stretches It is not steady enough.

As another preferred embodiment of the present invention, the top surface of described device housing, which is provided with, can install first thick stick First mounting groove of bar and the second mounting groove that can install the second lever, first lever and the second lever are located at institute respectively State in the first mounting groove and second mounting groove, and the middle part of first lever passes through first rotating shaft and the described first installation The internal groove side wall rotation connection of groove, the middle part of second lever are rotated by the internal groove side wall of the second rotating shaft and second mounting groove Connection, the button slot are connected by the first slotted eye with first mounting groove, and pass through the second slotted eye and the described second installation Groove connects, and the bottom land of first mounting groove, which is provided with, can facilitate first lever rotation and facilitate first projection to stretch into institute State the first opening of telescopic cavity, the bottom land of second mounting groove, which is provided with, can facilitate second lever rotation and facilitate described the Two projections stretch into the second opening of the telescopic cavity, and first mounting groove and the second mounting groove are opened by described first respectively Mouth and the second opening connect with the telescopic cavity.

Beneficial effect using above-mentioned preferred scheme is：Telescopic cavity is located at the lower section of the first lever and the second lever, not only The rotation of first lever and the second lever is more flexible, and the first projection and the second projection are more smooth with the grafting of neck, more Simply, it is convenient, fast, stable to realize the flexible and fixed of flexible body, and the system of the first mounting groove and the second mounting groove Make processing it is simpler, the installation of the first lever and the second lever is simpler convenient.

As another preferred embodiment of the present invention, first opening and the second opening are in strip, and institute State the first opening and the second opening is less than the width of the flexible body perpendicular to the width of flexible body telescopic direction.

Beneficial effect using above-mentioned preferred scheme is：Both more convenient manufacture processing, and simpler convenient realization The rotation of first lever and the second lever, it can also effectively avoid flexible body from being teetertottered in telescopic process, will stretch Contracting body is limited in telescopic cavity, is stretched more steady.

As another preferred embodiment of the present invention, the shape size and first mounting groove of first opening Bottom land shape size it is identical, it is described second opening shape size and the bottom land of second mounting groove shape size phase Together.

Beneficial effect using above-mentioned preferred scheme is：Manufacture processing is simpler, convenient, fast, realizes the first lever Rotation with the second lever is more convenient, and rotation space is bigger.

As another preferred embodiment of the present invention, the length and width dimensions of the telescopic mouth are respectively less than the telescopic cavity and put down Row is additionally provided with least one in the length and width dimensions in the section of telescopic mouth, one end top surface of the flexible body away from the telescopic mouth Can prevent that flexible body from all stretching out the 3rd raised of telescopic cavity, the described 3rd it is raised with the line direction of the neck and institute The telescopic direction for stating flexible body is intersected, the neck and the flexible body tip be smaller than or it is convex equal to the described 3rd Play the spacing with the flexible body tip.

Beneficial effect using above-mentioned preferred scheme is：When the flexible mouth down of device case front end, the body that stretches is in weight When slide downward from telescopic mouth so as to stretch out in the presence of power, the 3rd projection can be stuck at telescopic mouth, both can effectively be prevented Flexible body because of switch out of turn of release button and whole stretches out telescopic cavity, use is safer, can more facilitate again, Accurately realize the first raised grafting with neck on the first lever, use is more convenient.

As another preferred embodiment of the present invention, the described 3rd raised bullet can inwardly to compress and upspring automatically Property it is raised, described first raised be equal to the neck with the spacing of the telescopic mouth and raised stretched with the described 3rd along flexible body The spacing in direction.

Beneficial effect using above-mentioned preferred scheme is：Elastic bumps both can effectively prevent flexible body because of release button The out of turn and whole of switch stretches out telescopic cavity, and use is safer, can inwardly compress under external force again, so that Flexible body is put into or taken out that telescopic cavity is simpler, convenient, fast, is more beneficial for the installation and removal of flexible body, not only It is more convenient to install and use, and repair, to change flexible body simpler, convenient, so as to it is cost-effective, extend product and use Life-span；First raised and telescopic mouth spacing is equal to neck and the 3rd projection can be more along the spacing of flexible body telescopic direction Simply, the first raised grafting with neck on the first lever precisely, is smoothly realized, use is more convenient.

Brief description of the drawings

Fig. 1 is a kind of structural representation of scheme of product of the present invention；

Fig. 2 is the front end surface structural representation of product in Fig. 1；

Fig. 3 is the structural representation of the flexible body of product in Fig. 1；

Fig. 4 is side cross-sectional view of the product along A-A directions in Fig. 1；

Fig. 5 is the side cross-sectional view of product another kind scheme of the present invention；

In accompanying drawing, the list of parts representated by each label is as follows：

1st, device case, 2, flexible body, 3, telescopic cavity, 4, telescopic mouth, the 5, first mounting groove, 6, button slot, 7, second Mounting groove, the 8, first lever, 9, first rotating shaft, 10, first is raised, and 11, button switch, 12, spring, the 13, second lever, 14, Second rotating shaft, 15, second is raised, and 16, neck, the 17, the 3rd is raised, the 18, second slotted eye.

Embodiment

The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.

Embodiment

As shown in Figures 1 to 5, it is a kind of to be easy to instrument to carry the expansion locking device that uses, it include device case 1 and Described device housing 1 can partly be stretched out or be fully retracted into the flexible body 2 of described device housing 1, the flexible body 2 can be The strip instrument such as key, blade, the inside of described device housing 1 is provided with the telescopic cavity 3 that can accommodate the flexible body 2, described The front end of device case 1 is provided with the telescopic mouth 4 for being available for the part of flexible body 2 to stretch out described device housing 1, the flexible sheet One end top surface of the body 2 away from the telescopic mouth 4 is provided with the neck 16 for being used for fixing locked flexible body 2；

Described device housing 1 is provided with the button switch 11 that can inwardly compress and upspring automatically and can opened in the button Close 11 and drive lower the first lever 8 and the second lever 13 rotated simultaneously, the lever 13 of the first lever 8 and second is respectively positioned on described The top of flexible body 2, and first lever 8 is located at the button switch 11 close to the side of the telescopic mouth 4, described the Two levers 13 are located at the opposite side of the button switch 11, one end of first lever 8 and the side of the button switch 11 Connection, its middle part are rotatablely connected with described device housing 1, and its other end bottom, which is provided with, to be stretched out in the flexible part of body 2 During the telescopic mouth 4 of described device housing 1 with the first projection 10 of the grafting of neck 16, one end of second lever 13 and institute The opposite side connection of button switch 11 is stated, its middle part is rotatablely connected with described device housing 1, and its other end bottom is provided with can be in institute State the second projection 15 with the grafting of neck 16, first projection 10 when flexible body 2 is fully retracted into described device housing 1 With the second raised 15 best cylindrical, squares, spherical or hemispherical, the lever 13 of the first lever 8 and second preferably exists Vertical rotation in surface where the telescopic direction of flexible body 2；

The top surface of described device housing 1 is preferably provided the button slot 6 that can install the button switch 11, the button slot 6 Vallecular cavity be preferably in the form of a column, the regular shape such as its section can be square, circle or other irregular shapes, the button switch The shape size of 11 shape size and the vallecular cavity of corresponding button groove 6 is mutually matched, and the bottom of the button switch 11 is stretched into The button slot 6, the bottom of the button slot 6 set the spring that the button switch 11 can be made to be upspring automatically after inwardly compressing 12, the spring 12 can be placed directly in the lower section of button switch in the button slot 6, can also one end and the button slot 6 bottom land is fixedly connected, and the other end is fixedly connected with the bottom of the button switch 11, the opposite sides point of the button slot 6 The first slotted eye and the second slotted eye 18 that She Zhi not can facilitate the lever 13 of the first lever 8 and second to rotate, the button switch 11 side is provided with the first axle that first lever 8 can be driven to rotate or the first jack, and opposite side is described provided with that can drive The second hinge or the second jack that second lever 13 rotates, one end of first lever 8 pass through first slotted eye, and with institute It is be hinged or stretch into first jack to state first axle, one end of second lever 13 passes through second slotted eye 18, and with The second hinge is be hinged or stretches into second jack, and first jack and the second jack may also extend through connection；

The shape of first lever 8 and the second lever 13 and length can be different and flexible according to the position of button switch 11 The actual conditions such as the job specification of body 2 make corresponding adjustment, such as：The shape of the lever 13 of first lever 8 and second can To be direct rod shape or curved bar shape, polymorphic structure can also be.

In the present invention, the button slot 6 can be made to be connected by the first slotted eye and the second slotted eye 18 with the telescopic cavity 3, First lever 8, the second lever 13 may be contained within the telescopic cavity 3, and the middle part of first lever 8 and the second lever 13 middle part is rotatablely connected by the rotating shaft 14 of first rotating shaft 9 and second and the madial wall of described device housing 1 respectively, such as Fig. 5 institutes Show, device case can be divided into two parts production and processing by the program during fabrication, install the first lever 8, the second lever 13 Assembled again with after button switch 11, the cavity of such telescopic cavity 3 is bigger, more saves material, cost-effective, the He of the first lever 8 The rotation of second lever 13 is more flexible, and rotation space is bigger, but flexible body 2 easily teetertotters, and stretches not flat enough Surely；

Can also described device housing 1 top surface be provided with can install first lever 8 the first mounting groove 5 and can Second mounting groove 7 of the second lever 13 is installed, the lever 13 of the first lever 8 and second is located at first mounting groove 5 respectively In second mounting groove 7, and the middle part of first lever 8 passes through first rotating shaft 9 and the inside groove of first mounting groove 5 Wall is rotatablely connected, and the middle part of second lever 13 is rotated by the internal groove side wall of the second rotating shaft 14 and second mounting groove 7 to be connected Connect, the button slot 6 is connected by the first slotted eye with first mounting groove 5, and passes through the second slotted eye 18 and the described second peace Tankage 7 connects, and the bottom land of first mounting groove 5, which is provided with, can facilitate first lever 8 to rotate and facilitate described first raised 10 stretch into the first opening of the telescopic cavity 3, and the bottom land of second mounting groove 7, which is provided with, can facilitate second lever 13 to rotate And facilitate second projection 15 to stretch into the second of the telescopic cavity 3 and be open, the mounting groove 7 of the first mounting groove 5 and second Connected respectively by the described first opening and the second opening with the telescopic cavity 3, first opening and the second opening are preferably equal In strip, and first opening and the second opening are less than the flexible sheet perpendicular to the width of the flexible telescopic direction of body 2 The width of body 3, the shape size of first opening can also be identical with the shape size of the bottom land of first mounting groove 5, The shape size of second opening can also be identical with the shape size of the bottom land of second mounting groove 7.

Product of the present invention is before use, flexible body 2 is located in the telescopic cavity 3 of device case 1, and second on the second lever 13 Projection 15 is plugged on flexible body 2 in neck 16, locked in device case 1 so as to which flexible body 2 be fixed；

In use, only needing the telescopic mouth 4 of the front end of device case 1 down, button switch 11, the first lever are then pressed 8 and second lever 13 will be rotated with the motion of button switch 11 so that the first raised 10 Hes on the first lever 8 The second projection 15 on second lever 13 is moved away from flexible body 2, is left and is stretched when the second projection 15 on the second lever 13 During neck 16 on contracting body 2, flexible body 2 slide downward so as to be stretched out from telescopic mouth 4, can stretched under gravity Terminate after the part extending apparatus housing 1 of contracting body 2, pressing button switch 11 will upspring, and the first lever 8 and the second lever 13 are again It can be rotated backward with the motion of button switch 11 so that in the first projection 10 and the second lever 13 on the first lever 8 Second projection 15 is moved towards flexible body 2, the card being plugged in when the first projection 10 on the first lever 8 on flexible body 2 When in groove 16, stretching body 2 can be locked by fixation, so as to come into operation；

When transportation is needed after use, it is only necessary to, then press button by the telescopic mouth 4 of the front end of device case 1 upward Switch 11, the first lever 8 and the second lever 13 will rotate with the motion of button switch 11 so that the first lever 8 On the first projection 10 and second the second projection 15 on lever 13 moved away from flexible body 2, when the on the first lever 8 When one projection 10 leaves the neck 16 on flexible body 2, stretch body 2 can under gravity slide downward from telescopic mouth 4 retract into telescopic cavity 3, terminate pressing after the flexible full retraction of body 2 enters device case 1, button switch 11 will bullet Rise, the first lever 8 and the second lever 13 can rotate backward with the motion of button switch 11 again so that on the first lever 8 The second projection 15 in first projection 10 and the second lever 13 is moved towards flexible body 2, and second on the second lever 13 When projection 15 is plugged in the neck 16 on flexible body 2, stretching body 2 can be locked in device case 1 by fixation, product If when carrying by the telescopic mouth 4 of device case 1 upward, flexible body 2 is more not easy to stretch out out of device case 1, carry It is safer.

In the present invention, the length and width dimensions of the telescopic mouth 4 are preferably respectively less than the telescopic cavity 3 cutting parallel to telescopic mouth 4 The length and width dimensions in face, one end top surface of the flexible body 2 away from the telescopic mouth 4 preferably also set up and at least one prevent from stretching Contracting body 2 all stretches out the 3rd projections 17 of telescopic cavities 3, and the line direction of the 3rd projection 17 and the neck 16 is and institute The telescopic direction for stating flexible body 2 is intersected, so as to ensure flexible body in stretching motion, the line of motion of the 3rd projection 17 and The line of motion of neck 16 is not arranged on the same straight line, the 3rd projection 17 and the first lever 8, the second lever 13 and button switch 11 Also it is not arranged on the same straight line, effectively avoids influenceing because the 3rd projection 17 crosses with the first lever 8 or the generation of the second lever 13 Flexible body 2 stretches；

So when the front end of device case 1 telescopic mouth 4 down, stretch body 2 under gravity slide downward so as to When being stretched out from telescopic mouth 4, the 3rd projection 17 can be stuck at telescopic mouth 4, both can effectively prevent flexible body 2 because of release button The out of turn and whole of switch 11 stretches out telescopic cavity 3, and use is safer, can more facilitate again, accurately realize first The first projection 10 and the grafting of neck 16, use on lever 8 is more convenient.

The elastic bumps that 3rd projection 17 preferably can inwardly be compressed and upspring automatically, so both can effectively be prevented Flexible body 2 all stretches out telescopic cavity 3 because of the out of turn of release button switch 11, and use is safer, again can be outside The lower inwardly compression of power effect, so as to be put into or take out telescopic cavity 3 simpler, convenient, fast for flexible body 2, it is more beneficial for The installation and removal of flexible body 2, it is more convenient not only to install and use, and repair, to change flexible body 2 simpler, just Victory, so as to cost-effective, extension product service life；

The neck 16 and the flexible end of body 2 be smaller than or equal to the described 3rd projection 17 with it is described flexible The spacing of the end of body 2, first projection 10 and the spacing of the telescopic mouth 4 are equal to the neck 16 and the described 3rd projection 17 along the flexible telescopic direction of body 2 spacing, so can with it is simpler, conveniently, accurately realize the first projection 10 and neck 16 grafting；

3rd projection 17 can be multiple, and be arranged in a linear perpendicular to the telescopic direction of the flexible body 2, more Individual 3rd projection 17 is stuck at telescopic mouth 4 jointly, both can with it is more efficient prevent flexible body 2 because release button switch 11 when Machine not pair does not all stretch out telescopic cavity 3, and use is safer, can more facilitate again, precisely, smoothly realize the first lever 8 On the first projection 10 and the grafting of neck 16, use it is more convenient.

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention, and any reference in claim should not be considered as to the involved claim of limitation.

The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims

1. a kind of be easy to instrument to carry the expansion locking device used, it is characterised in that it includes device case (1) and can portion Divide the flexible body (2) for stretching out described device housing (1) or being fully retracted into described device housing (1), described device housing (1) Inside is provided with the telescopic cavity (3) that can accommodate the flexible body (2), and the front end of described device housing (1), which is provided with, is available for described stretch The telescopic mouth (4) of described device housing (1) is stretched out in contracting body (2) part, and the flexible body (2) is away from the telescopic mouth (4) One end top surface be provided with and be used to fix the neck (16) of locked flexible body (2), described device housing (1) is provided with can be to internal pressure Contract the button switch (11) upspring automatically and can drive lower while rotation the first lever (8) in the button switch (11) With the second lever (13), first lever (8) and the second lever (13) are respectively positioned on the top of the flexible body (2), and institute The side that the first lever (8) is located at the close telescopic mouth (4) of the button switch (11) is stated, second lever (13) is located at The opposite side of the button switch (11), one end of first lever (8) are connected with the side of the button switch (11), its Middle part is rotatablely connected with described device housing (1), and its other end bottom is provided with can be described in flexible body (2) the part stretching During telescopic mouth (4) of device case (1) with the first of the neck (16) grafting raised (10), the one of second lever (13) End is connected with the opposite side of the button switch (11), and its middle part is rotatablely connected with described device housing (1), its other end bottom Provided with the second projection that can be when the flexible body (2) is fully retracted into described device housing (1) with the neck (16) grafting (15)。

2. according to claim 1 be easy to instrument to carry the expansion locking device used, it is characterised in that described first is convex Play (10) and the second projection (15) cylindrical, square, spherical or hemispherical, first lever (8) and the second lever (13) in the vertical rotation in surface where flexible body (2) telescopic direction.

3. according to claim 1 be easy to instrument to carry the expansion locking device used, it is characterised in that described device shell The top surface of body (1) is provided with the button slot (6) that can install the button switch (11), and institute is stretched into the bottom of the button switch (11) Button slot (6) is stated, the bottom of the button slot (6), which is provided with, can make what the button switch (11) can upspring automatically after inwardly compressing Spring (12), the opposite sides of the button slot (6), which is respectively equipped with, can facilitate first lever (8) and the second lever (13) to turn Dynamic the first slotted eye and the second slotted eye (18), the side of the button switch (11), which is provided with, can drive first lever (8) to turn Dynamic first axle or the first jack, opposite side are inserted provided with the second hinge or second that can drive the second lever (13) rotation Hole, one end of first lever (8) passes through first slotted eye, and is hinged or stretches into described first with the first axle and insert Hole, one end of second lever (13) pass through second slotted eye (18), and be hinged with the second hinge or stretch into described Second jack.

4. according to claim 3 be easy to instrument to carry the expansion locking device used, it is characterised in that the button slot (6) vallecular cavity is in the form of a column.

5. according to claim 3 be easy to instrument to carry the expansion locking device used, it is characterised in that the button slot (6) connected by the first slotted eye and the second slotted eye (18) with the telescopic cavity (3), first lever (8), the second lever (13) It is respectively positioned in the telescopic cavity (3), and the middle part of first lever (8) and the middle part of the second lever (13) pass through first respectively Rotating shaft (9) and the second rotating shaft (14) and the madial wall of described device housing (1) are rotatablely connected.

6. according to claim 3 be easy to instrument to carry the expansion locking device used, it is characterised in that described device shell The top surface of body (1) is provided with the first mounting groove (5) that can install first lever (8) and can install the second lever (13) the Two mounting grooves (7), first lever (8) and the second lever (13) are located at first mounting groove (5) and described second respectively In mounting groove (7), and the middle part of first lever (8) passes through first rotating shaft (9) and the internal groove side wall of first mounting groove (5) Rotation connection, the middle part of second lever (13) are turned by the internal groove side wall of the second rotating shaft (14) and second mounting groove (7) Dynamic connection, the button slot (6) are connected by the first slotted eye with first mounting groove (5), and by the second slotted eye (18) and Second mounting groove (7) connection, the bottom land of first mounting groove (5), which is provided with, can facilitate first lever (8) to rotate simultaneously Described first raised (10) are facilitated to stretch into the first opening of the telescopic cavity (3), the bottom land of second mounting groove (7) is provided with can Facilitate second lever (13) to rotate and facilitate described second raised (15) to stretch into the second of the telescopic cavity (3) and be open, First mounting groove (5) and the second mounting groove (7) pass through the described first opening and the second opening and the telescopic cavity (3) respectively Connection.

7. according to claim 6 be easy to instrument to carry the expansion locking device used, it is characterised in that described first opens Mouth and the second opening are in strip, and first opening and second is open perpendicular to the width of flexible body (2) telescopic direction Width of the degree less than the flexible body (3).

8. according to claim 7 be easy to instrument to carry the expansion locking device used, it is characterised in that described first opens Mouthful shape size it is identical with the shape size of the bottom land of first mounting groove (5), it is described second opening shape size and The shape size of the bottom land of second mounting groove (7) is identical.

9. according to any one of claim 1 to 8 be easy to instrument to carry the expansion locking device used, its feature exists In, the length and width dimensions of the telescopic mouth (4) are respectively less than length and width dimensions of the telescopic cavity (3) parallel to the section of telescopic mouth (4), One end top surface of the flexible body (2) away from the telescopic mouth (4), which is additionally provided with, at least one prevents flexible body (2) all Stretch out the 3rd raised (17) of telescopic cavity (3), the line direction of the described 3rd raised (17) and the neck (16) with it is described The telescopic direction of flexible body (2) is intersected, and the neck (16) is smaller than or equal to institute with flexible body (2) end State the spacing of the 3rd raised (17) and flexible body (2) end.

10. according to claim 9 be easy to instrument to carry the expansion locking device used, it is characterised in that the described 3rd Raised (17) are the elastic bumps that can inwardly compress and upspring automatically, between described first raised (10) and the telescopic mouth (4) Away from equal to the neck (16) and spacing of the described 3rd raised (17) along flexible body (2) telescopic direction.