CN202301329U - Locking mechanism and lifting rod - Google Patents
Locking mechanism and lifting rod Download PDFInfo
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- CN202301329U CN202301329U CN2011203192912U CN201120319291U CN202301329U CN 202301329 U CN202301329 U CN 202301329U CN 2011203192912 U CN2011203192912 U CN 2011203192912U CN 201120319291 U CN201120319291 U CN 201120319291U CN 202301329 U CN202301329 U CN 202301329U
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- lifting bar
- locking mechanism
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Abstract
The utility model relates to a locking mechanism for fixing and locking the body position of a lifting rod which is lifted up. The locking mechanism comprises a locking pin, a spring for driving the locking pin to be in an stretching state is arranged on the locking pin, the rear end of the locking pin is provided with an electromagnet for attracting the locking pin to recede; a corresponding lifting rod comprises at least two guide pipes which are connected with one sleeved in the other; the upper end of an external guide pipe and the lower end of the adjacent internal guide pipe are respectively provided with locking holes with are corresponding to each other in position and size; the locking mechanism is fixed on one guide pipe, the position and size of the locking pin is corresponding to those of the locking hole; in normal state, the locking pin stretches forwards and are inserted into the locking hole to play the role of locking and positioning, when the electromagnet is in work, the locking pin recedes, two guide pipes are in a relative free state so as to descend the internal guide pipe; the mechanism avoids the manual locking or bolt or screw detaching, and only the electromagnet needs to be started and closed; therefore, the use is more labor-saving and convenient, and the operation process is safer.
Description
Technical field
The utility model relates to the mechanism of locking and positioning, is specifically related to be used for fixing on the lifting bar and locks the body of rod or the locking mechanism of body position after raising.
Background technique
In the existing technology, the locking and positioning after lifting bar, mast, mast etc. rise mainly is to utilize screw or bolt to screw in, and makes lifting bar or positions such as mast, mast fix.And reliable in order to lock and to locate, and make the rod member stress equalization that is positioned, avoid being destroyed, so such positioning screwn or bolt need distaff part side face evenly to be provided with a plurality of.And such locking device need rotate a plurality of bolts or nut or artificial pulling spring bolt with spanner in locking or when dismounting and pursue joint locking or release, and operation quite bothering.And if successively rotary screw or bolt can unbalance stress, cause rod member clamping stagnation or damage.Moreover, even while rotary screw or nut also are difficult to assurance fully synchronously, the situation of clamping stagnation or damage can appear equally.The more important thing is that locking and the adjacency that the people must stand in lifting bar during unlocking operation are operated, and are easy to cause potential safety hazard in case break down.
Simultaneously, the electromagnetic locking mode is not applied on lifting bar.And be applied to anchor ear and other mechanical self-latching mechanisms of lifting bar, to pursue the locking of joint or by the uncaging of joint, efficient is very low, the operating process more complicated in operating process.
Summary of the invention
The purpose of the utility model provides a kind of more convenient, labour-saving locking mechanism and utilize the lifting bar of this locking mechanism more that uses.
For realizing the foregoing invention purpose; The technological scheme that is adopted is: a kind of locking mechanism; Comprise spring bolt, it is characterized in that: be provided for ordering about the spring that spring bolt is in the state of protracting on the described spring bolt, the spring bolt rear end is provided with the electromagnet that contracts behind the attraction spring bolt.
In the technique scheme; Can regard that also spring bolt receives the elastic force of spring to be in the state that protracts under the normality as, spring in the raw or compressive state slightly, when work of electromagnet; Contract behind the spring bolt; The further compression of spring quilt, in such technological scheme, the fixing of each parts then has a lot of middle modes of implementing with being connected.Such locking mechanism can make the flexible function that plays lock or close of spring bolt under the effect of electromagnet.
Accordingly; Lifting bar after being set to above-mentioned locking mechanism on the lifting bar is: a kind of lifting bar of aforesaid locking mechanism; It is characterized in that: described lifting bar comprises at least two conduits of inside and outside socket, and outer conduit upper end and adjacent inner conduit lower end are provided with the corresponding locking hole of size and position; Described locking mechanism is fixed therein on the conduit, and the position of spring bolt is corresponding with size and locking hole.
Dimensions according to the size choose reasonable locking mechanism of lifting bar; Arrange the position of locking mechanism; Just can work as work of electromagnet, then contract behind the spring bolt so that insert the effect of playing sealed location in the locking hole when spring bolt protracts under the normality; Two conduits are in relative free state, can fall inboard conduit.When rising inner conduit once more, spring bolt arrived to inboard conduit outer wall before this, subscribed the position when inner conduit rises to, and then spring bolt just gos deep in the locking hole under spring force, plays the function of sealed location again.
Avoided artificial locking or demounting bolt or screw in such mechanism, only needed to start or close electromagnet, used obviously very laborsaving, convenient.
Description of drawings
Fig. 1 is a kind of structural representation of locking mechanism of mode of execution;
Fig. 2 is the structural representation of the locking mechanism of another kind of mode of execution;
Fig. 3 is the structural representation that utilizes the lifting bar of locking mechanism shown in Figure 1;
Fig. 4 is that A-A among Fig. 3 is to view;
Fig. 5 is the structural representation that utilizes the lifting bar of locking mechanism shown in Figure 2.
Embodiment
A kind of locking mechanism shown in Fig. 1 or 2; Comprise spring bolt 1, be provided for ordering about the spring 2 that spring bolt 1 is in the state of protracting on the spring bolt 1, spring 2 for example can be fixed the rear end; Front end is connected with spring bolt 1 or is set on the shaft of spring bolt 1 then, all can realize this function; Spring bolt 1 rear end is provided with the electromagnet 3 that contracts behind the attraction spring bolt 1; Such electromagnet 3 embodiments have a lot; For example Fig. 1, shown in 2 being positioned at spring bolt 1 rear and mutually from a segment distance; Electromagnet 3 work just can and make it to bounce back backward with spring bolt 1 attraction, just move towards the direction of pressure spring 2.
Can give like this protract with after the spring bolt 1 that contracts just can play the effect that is similar to lock core naturally.Further: described spring bolt 1 is arranged in the tubulose fixed cover 4, and spring bolt 1 is anterior identical with fixed cover 4 thicknesses, and layout is left mutually with electromagnet 3 in described spring bolt 1 rear end; Described locking mechanism comprises the position-limit mechanism of restriction spring bolt 1 preceding extensibility.Fixed cover 4 can be square tubulose, pipe shape preferably, and spring bolt 1 also is cylindric, can make spring bolt 1 flexible smooth and easy, simultaneously corresponding locking hole also is a circular hole, has reduced the difficulty of centering between spring bolt 1 and the locking hole, the convenient use.Spring bolt 1 rear end and electromagnet 3 are realized sealedly coincideing with the displacement distance of opening from the distance of arranging and spring bolt 1 mutually, perhaps the phase separation from more mostly can, those skilled in the art can select as required voluntarily.The purpose of position-limit mechanism is to prevent that spring 2 is in compressive state; Spring bolt 1 was launched away by the elastic force of spring 2 when electromagnet 3 cut off the power supply then; Such position-limit mechanism mode of execution is a lot; The structure of also being convenient to be provided with comparatively commonly used stops that in spring bolt 1 tail end setting perhaps the front end setting at spring bolt 1 stops exactly.
The concrete mode that such locking mechanism is applied on the lifting bar is exactly: a kind of lifting bar, lifting bar comprise at least two conduits 10,20 of inside and outside socket, and 3 conduits have drawn among Fig. 3; Be that example describes with conduit 10,20 mainly below: outer conduit 10 upper ends and adjacent inner conduit 20 lower ends are provided with the corresponding locking hole of size and position; Described locking mechanism be fixed on conduit 10 or the conduit 20 can, the position of spring bolt 1 is with big or small and locking hole is corresponding.What the position correspondence of locking hole referred to is exactly when inner conduit 20 rises to the position of working state; The locking hole position of its lower end and the locking hole position on the outer conduit 10 coincide, and are fixed on spring bolt 1 on conduit 10 or the conduit 20 then and protracted by spring force to insert in the locking hole.So just realized the sealed location of lifting bar.Electromagnet 3 work, spring bolt 1 just withdraws from locking hole, can put down inner conduit again.
Better structure is: described outer conduit 10 upper ends and adjacent inner conduit 20 lower ends are provided with corresponding countercheck mechanism; Countercheck mechanism is used to limit the lifting height of inner conduit 20.So just avoided inboard conduit 20 to be drawn out of outer conduit 10.Embodiment as for countercheck mechanism then has a lot; The projection that is positioned at same vertical guide for example is set on adjacent catheter 10,20; Inner conduit 20 rise the projection of back on it just with outer conduit 10 on projection keep out and cooperate, play the effect that limits lifting height.The lifting height of mechanism for monitoring monitoring inner conduit 20 perhaps is set; Rising to certain altitude just utilizes and clamps grips two conduits 10,20 and realize spacing; Also be a kind of good mode of execution, convenient and strength-savingly like this can also play certain positioning action, strengthen reliability of positioning conduit 20.
The preferred forms of countercheck mechanism is exactly: described countercheck mechanism comprises the metal upper shield 11 that is set in outer conduit 10 upper ends; With the stop collar 12 that is set in inner conduit 20 lower ends, described stop collar 12 upper-end surfaces stop with the top inwall formation of metal upper shield 11 and cooperate.Stop collar 12 materials are metal or plastics.Like Fig. 3, shown in 5; Obviously, the diameter of such inner conduit 20 can be less than outer conduit 10, to reserve the space that stop collar 12 is set; Certainly; Rise steadily with inner conduit 20 for lubricated, the through-hole aperture of the thickness of inner conduit 20 and metal upper shield 11 upper-end surfaces quite or smaller is slidingly matched with formation; The bore of stop collar 12 and outer conduit 10 quite or smaller also constitutes and is slidingly matched or slides from also being convenient to mutually.
Further, setting has certain elasticity, the less ring bush 13 of while friction factor between described outer conduit 10 upper ends and metal upper shield 11 inwalls; Described stop collar 12 upper-end surfaces stop through lining 13 formations with metal upper shield 11 and cooperate.The material of such ring bush 13 has a variety of, mainly is various engineering plastics, for example nylon, teflon, urethane plastic or the like.
As shown in Figure 3, described inner conduit 20 upper ends are provided with draws locking hole 21 in, and the position of drawing locking hole 21 in is corresponding with the position that lifting bar draws back spring bolt 1 in.Like this after inboard conduit 20 or 30 puts down; Spring bolt 1 can insert under the elastic force effect of spring 2 and draw locking hole 21 in, makes position stability between the conduit, can not take place axially, moving radially; In transportation or move can not skid off in the process and, be easy to carry.
Be more preferably: described adjacent catheter 10, rotating guide mechanism takes place when being provided for avoiding conduit 20 to go up and down between 20; The front end setting of described spring bolt 1 is led circle or chamfering or is set to the round end shape.Draw locking hole 21 like this in and can make lifting bar after drawing in, be in steady state, locking mechanism can make lifting bar rise afterwards the position, dimensionally stable is firm; And the conduit 20 that guide mechanism can make lifting bar is smooth and easy stable in the process that rises or fall, and avoids conduit 20 coaxial rotation, also just avoids rising will aiming at corresponding locking hole again after the conduit 20 and could utilizing fixedly adjacent catheter 10,20 of locking mechanism.Concrete structure as for guide mechanism then has a lot, for example on inner conduit 20, is provided with along the guiding groove of pipe range direction, and setting coincide with the guiding groove groove width and stretches into the spacing protuberance in the groove in outer conduit 10 upper ends; Perhaps feather key is set at conduit 20 outer walls, in metal upper shield 11 inside edges or the guiding groove that cooperates with feather key of conduit 10 upper end inward flange settings or the like can realize guide function to the utility model.The round end of spring bolt 1 front end or lead circle, chamfer design and be convenient to spring bolt 1 to insert locking hole more smooth and easy.
To the utility model mainly provide like Fig. 1, the locking mechanism shown in 2, its preferred structure that is assembled on the lifting bar mainly also has corresponding two kinds:
To locking mechanism shown in Figure 1, like Fig. 3, shown in 4, at least two protuberances of described metal upper shield 11 side face settings 111, the shaft core direction of conductive pipe 10,20 extends through hole on the protuberance 111, and the fixed cover 4 of described locking mechanism is fixed in the through hole; Two through holes are symmetrical about the axle core center of conduit 10,20; The thick dumbbell shaped in thin two ends in the middle of described spring bolt 1 is, fixed cover 4 inner chamber neutral positions are provided with bulge loop 5, and spring 2 is set on the shaft of spring bolt 1 intermediate portion, and bulge loop 5 is between the major diameter part 6 and spring 2 of spring bolt 1 rear end.The fixing of fixed cover 4 so both had been convenient in perforate on the protuberance 111, guaranteed structural strength again.Spring bolt 1 is simple with fixed cover 4 cooperating structures of optimizing, and it mainly is in order to prevent that spring bolt 1 from inserting the suction resistance that inner conduit 20 or 30 increases electromagnet 3 too deeply under the elastic force of spring 2 that bulge loop 5 is set to dumbbell shaped with spring bolt 1.Simultaneously such structure is that the structure of blind hole is convenient to assembling than the locking hole on inner conduit 20 or 30 again.Assembling as for locking mechanism itself also has a lot of mode of executions, and for example fixed cover 4 is processed as the two halves formula, assembles spring bolt 1 then and welds with spring 2.Perhaps, the bulge loop 5 in the fixed cover 4 is arranged on the body that cooperates with fixed cover 4 grafting.Locking mechanism is positioned at outer conduit 10 outsides, is positioned on the outer conduit 10 in other words in such structure, so be called for short " outlet structure ".
The using process of " outlet structure " is: when lifting bar rises every joint conduit 20 or 30 through pneumatic, hydraulic pressure, mode such as electronic or manual; Spring 2 is compressed; Open spring bolt 1 outside both sides; Also can at first let electromagnet 3 hold spring bolt 1 and be outside open configuration, aim at through the spacing locking hole of conduit 10, conduit 20 and limited ring 12 that makes of stop collar 12, at this moment spring bolt 1 slides into locking hole under the tension force effect of pressure spring 2; Or close electromagnet 3 power supplys and under the tension force effect of spring 2, slip into locking hole by spring bolt 1 automatically, so just accomplished the locking work of lifting bar.Locking between all the other each joints is carried out in the same way.When lifting bar will descend, at first open electromagnet 3 power supplys, electromagnet 3 is outwards pulled out spring bolt 1, and lifting bar just can carry out the step-down operation of each joint.
To locking mechanism shown in Figure 2; As shown in Figure 5; Described locking mechanism fixed cover 4 in neutral positions electromagnet 3 is set, spring bolt 1 is positioned at the two ends of fixed cover 4, the external stability at described fixed cover 4 two ends is in the symmetrically arranged hole of inner conduit 20 lower end edge tubular axis cores; The locking hole that supplies spring bolt 1 to insert on the described outer conduit 10 extends on metal upper shield 11 outer circumferential faces, and the outer end that is positioned at metal upper shield 11 of locking hole is provided with plug stifled 112.In such structure, the partial fixing that in fact is positioned at the symmetrically arranged hole of inner conduit 20 lower end edge tubular axis cores overlaps the part that 4 endoporus have just constituted locking hole.As long as can block locking hole, make spring bolt can not eject and get final product that what illustrate among Fig. 5 is a stifled ring, also can be other arbitrary shape and plug is stifled.This " built-in structure " beautiful shape is smooth, is convenient for carrying and uses.
" built-in structure " using process is: structurally be exactly with electromagnet 3 built-in be installed in be positioned at the 2nd inboard joint and back respectively save the conduit bottom; Spring bolt 1 is because of the inwardly contraction of pipe inner wall in the outer part of ground, outer end; Spring 2 is compressed, and perhaps electromagnet 3 inwardly holds spring bolt, when stop collar 12 arrives certain position; The locking hole of stop collar 12 is aimed at the locking hole on the correct position of outer conduit top; Through the tension force of spring 2, or electromagnet 3 outage back spring bolts 1 outwards open under pressure spring 2 effects, spring bolt 1 with regard to slip into outer conduit automatically, just the locking hole of last joint conduit is locked.Same, have gathering locking hole 21 in the bottom of every joint, make lifting bar respectively save conduit gathering locking later on and can not skid off.
It also can be three or more that the conduit of the utility model can be two, has illustrated the situation of 3 inside and outside sockets of conduit among Fig. 3, but also can be more, and the conduit joint number is many more, and the height after then lifting bar rises can be high more.Can utilize the locking mechanism of the utility model between the interior outer duct, constitute the novel elevating bar.
The utility model locking mode is a mechanical interlocking, and electromagnetism uncages, and locks safe and reliable, easy to operate.Can realize automatic control, locking and uncaging to operate does not need manual intervention, need not be equipped with extra instrument.The adhesive of electromagnetic coil has been the effect of unclamping, and the electromagnetic coil outage of locking back need not continue electric power and support, fully by mechanical self-latching.
The comparison of present technique and other technologies: lifting bar mainly relies on the manual mechanical interlocking that carries out at present.Anchor ear is set as locking mechanism at every joint, is mainly used in the locking work after the Pneumatic elevation bar raises.And this combination locking mechanism has solved these operation problems of anchor ear and pure mechanical interlocking; Lifting process only need be opened solenoid switch and just can all spring bolt be opened; Electromagnetic coil serial or parallel connection through to each joint becomes the closed-loop path; Just can realize more piece self-locking simultaneously and uncage simultaneously, thereby shorten lifting time greatly, improve efficient.This combination locking structure from cost locking mechanism than anchor ear locking or other modes low, and this locking mechanism does not occupy little space.Simultaneously, this combination locking structure can be carried out remote-controlled operation, makes personal safety be able to completely ensure, avoids the people to stand on the adjacency operation self-locking mechanism locking of lifting bar and the personal safety hidden danger of uncaging.
Claims (10)
1. a locking mechanism comprises spring bolt (1), it is characterized in that: be provided for ordering about the spring (2) that spring bolt (1) is in the state of protracting on the described spring bolt (1), spring bolt (1) rear end is provided with the electromagnet (3) that contracts behind the attraction spring bolt (1).
2. locking mechanism according to claim 1 is characterized in that: described spring bolt (1) is arranged in the tubulose fixed cover (4), and spring bolt (1) is anterior to coincide with fixed cover (4) thickness, and layout is left mutually with electromagnet (3) in described spring bolt (1) rear end; Described locking mechanism comprises the position-limit mechanism of the preceding extensibility of restriction spring bolt (1).
3. lifting bar that comprises the described locking mechanism of claim 2; It is characterized in that: described lifting bar comprises at least two conduits (10,20) of inside and outside socket, and outer conduit (10) upper end and adjacent inner conduit (20) lower end are provided with the corresponding locking hole of size and position; Described locking mechanism is fixed therein on the conduit, and the position of spring bolt (1) is corresponding with size and locking hole.
4. lifting bar according to claim 3 is characterized in that: described outer conduit (10) upper end and adjacent inner conduit (20) lower end are provided with corresponding countercheck mechanism; Countercheck mechanism is used to limit the lifting height of inner conduit (20).
5. lifting bar according to claim 3; It is characterized in that: described countercheck mechanism comprises the metal upper shield (11) that is set in outer conduit (10) upper end; With the stop collar (12) that is set in inner conduit (20) lower end, described stop collar (12) upper-end surface stops with the top inwall formation of metal upper shield (11) and cooperates.
6. lifting bar according to claim 5 is characterized in that: setting has certain elasticity, the less ring bush (13) of while friction factor between described outer conduit (10) upper end and metal upper shield (11) inwall; Described stop collar (12) upper-end surface stops through lining (13) formation with metal upper shield (11) and cooperates.
7. lifting bar according to claim 3 is characterized in that: described inner conduit (20) upper end is provided with draws locking hole (21) in, and the position of drawing locking hole (21) in is corresponding with the position that lifting bar draws back spring bolt (1) in.
8. according to claim 5 or 6 described lifting bars; It is characterized in that: at least two protuberances of described metal upper shield (11) side face setting (111); The shaft core direction that protuberance (111) is gone up conductive pipe (10,20) extends through hole, and the fixed cover of described locking mechanism (4) is fixed in the through hole; Two through holes are symmetrical about the axle core center of conduit (10,20); The thick dumbbell shaped in thin two ends in the middle of described spring bolt (1) is; Fixed cover (4) inner chamber neutral position is provided with bulge loop (5); Spring (2) is set on the shaft of spring bolt (1) intermediate portion, and bulge loop (5) is positioned between the major diameter part (6) and spring (2) of spring bolt (1) rear end.
9. according to any described lifting bar in the claim 5 to 7; It is characterized in that: described locking mechanism fixed cover (4) in the neutral position electromagnet (3) is set; Spring bolt (1) is positioned at the two ends of fixed cover (4), and the external stability at described fixed cover (4) two ends is in the symmetrically arranged hole of inner conduit (20) lower end edge tubular axis core; Described outer conduit (10) goes up the locking hole that supplies spring bolt (1) to insert and extends on metal upper shield (11) outer circumferential face, and the outer end that is positioned at metal upper shield (11) of locking hole is provided with plug stifled (112).
10. according to any described lifting bar in the claim 3 to 7, it is characterized in that: rotating guide mechanism takes place when being provided for avoiding conduit to go up and down between the described adjacent catheter; The front end setting of described spring bolt (1) is led circle or chamfering or is set to the round end shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203192912U CN202301329U (en) | 2011-08-26 | 2011-08-26 | Locking mechanism and lifting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203192912U CN202301329U (en) | 2011-08-26 | 2011-08-26 | Locking mechanism and lifting rod |
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| Publication Number | Publication Date |
|---|---|
| CN202301329U true CN202301329U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203192912U Expired - Fee Related CN202301329U (en) | 2011-08-26 | 2011-08-26 | Locking mechanism and lifting rod |
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| CN (1) | CN202301329U (en) |
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