CN204355901U - The safety tongs of curve motion elevator - Google Patents

Abstract

A safety tongs for curve motion elevator, belongs to elevator safety protection facility technology field.Comprise caliper, top tumbler established by caliper top board, caliper base plate sets guide wheel; C font leaf spring, is located at the front side in caliper chamber, and the wall body of C font leaf spring is equipped with dynamic voussoir seat adjusting mechanism; Lifting rod driver train, is located in caliper chamber; Lifting rod, its upper end leans out caliper top board and forms lifting rod Connection Block, lower end connection lift plate; A pair slide block mechanism, is located between caliper top, base plate, and this respectively comprises scotch block and braking voussoir to slide block mechanism, feature: also comprise actuating unit, and it is located on the car bottom girder of lift car; The left and right side plate of caliper respectively establishes axis of revolution; A pair slide block mechanism also respectively comprises and is limited in guide plate, a roller frame and one group of roller for a pair.Ensure braking voussoir easy motion; Reduce action transmission link; Meet coordinating and brake request of safety tongs and guide rail; Convenient to manufacture, cost-saving and facilitate installation and use.

Description

The safety tongs of curve motion elevator

Technical field

The utility model belongs to elevator safety protection facility technology field, is specifically related to a kind of safety tongs of curve motion elevator.

Background technology

Safety tongs is the indispensable safety guard of elevator, is usually arranged on elevator car rack or counterweight frame, provides necessary guarantee to the safe operation of elevator.Above mentioned curve motion elevator refers to the curved shape of guide rail for elevator cage operation, and this guide rail is on such as light rail, subway, harbour, scenic spot, hillside and comprise Lao Lou to be installed at the place of interior special building and so on not rarely seen.Due to the curved shape of guide rail for elevator cage operation, thus the running orbit of safety tongs and guiderail track there are differences, specifically, gap between safety tongs with guide rail can not be held in identical state all along, and gap is too small, easily produces friction situation, cause safety tongs misoperation, otherwise enough friction force cannot be produced because of bad contact between safety tongs and guide rail, cause lift car to slow down and walk or drive slowly, be especially difficult to stop.Therefore, safety tongs structurally answers the running orbit of its running orbit of As soon as possible Promising Policy and lift car in the relation of following in sb's footsteps.

As is known in the industry, safety tongs self can not trigger, must by with velocity limiter with the use of, when elevator speed exceedes the limited speed of elevator governor setting and time overweight, or when suspension strop fracture occurs and be lax, rope-clamping pliers is made to clamp speed limiter wire rope by the action of velocity limiter, speed limiter wire rope is out of service, now along with the lower operation of lift car, speed limiter wire rope is installed on the safety tongs connecting rod mechanism on the bottom girder of lift car or back timber by shift mechanism lift, make the action of safety tongs connecting rod mechanism, drive safety tongs braking element and the guide rail contact of car both sides, make safety tongs clamping guide-rail, reach the stop of lift car.Meanwhile, the electric switch that velocity limiter and safety tongs configure works, and the safety return circuit of cutting-off controlling system, makes elevator traction machine quit work, and guarantees the life security of passenger under elevator overspeed state taking elevator.

Above mentioned velocity limiter and safety tongs with the use of technical information as Chinese patent CN1330032A(elevator governor), CN100575234C(elevator governor), CN102387977B(speed limiter for elevator) and CN101979299A(elevator governor), etc.By known to the reading of these patents being not limited to exemplify, because the action of safety tongs is all driven by steel rope, specifically, need to be equipped with velocity limiter, thus structure relative complex, and action transmission link is many, and the speed of response of safety tongs is relatively slow.Especially, once wire cable rupture, then safety tongs cannot play a role.

Can be seen in disclosed Chinese patent literature to use without the need to being driven by the steel rope of velocity limiter save velocity limiter and in elevator power-off time can the technical information of safety tongs of snap catch, as " safety tongs of lift car " that Authorization Notice No. CN201325827Y recommends, this patent formula is by processing pit to the clamping face (towards the surface of the side of guide rail under using state) of voussoir, and friction shoe is bumped in pit, to increase the friction force with guide rail, concrete technique effect can see Instructions Page 2 the 15 to 18 row of this patent, but there is following shortcoming: one, owing to losing coordinating between voussoir with sliding shoe rationally, thus resistance when lifting rod lift voussoir is up is relatively large, the clamping speed of impact and guide rail, namely the stop speed of lift car is had an impact, they are two years old, although mention at Instructions Page 3: " lifting rod is controlled by limiting device, the technology contents of both annexations and limiting device is same as the prior art ", but do not put to the proof the concrete structure of limiting device of the prior art, and be also not enough to make those skilled in the art come to realize the specific constructive form of limiting device according to specification sheets instruction, but limiting device is as the drive element of lifting rod, lifting rod is then execution unit, therefore the whether reasonable action effect that can be directly connected to lifting rod of limiting device structure, its three, owing to lacking guide and limit effect to voussoir, thus when lifting rod drives a pair wedge block movement, inevitably shake pendulum phenomenon, the overall clamping effect of impact and guide rail, its four, due to by the restriction of structure design, thus can not be applied to the aforesaid guide rail for lift car curve motion.

And for example application for a patent for invention publication number CN101565145A provides " novel progressive safety tongs ", this patent application scheme eliminates lifting rod for aforementioned CN201325807Y, principle of work can see Instructions Page 3 the 8 to 20 row, but except electromagnet indispensability for iron core is moved iron core spring except also have external for forcing the spring of a pair lever arm motion, known, the critical defect of spring easily produces fatigue phenomenon, such as when the force fades that spring makes the top of a pair lever arm scold out each other, the gripping power of brake rubber block to guide rail of a pair lever arm bottom just weakens, affect stop effect, and this patent application scheme is not suitable with equally for aforesaid guide rail.

For another example application for a patent for invention publication No. CN101804934A introduces to be had " a kind of safety tongs ", this patent is famous can be applied to the special guide rail of arc and the guide rail (specification sheets the 0002nd section of the 6 to 10 row) of aforesaid curve motion elevator, but not providing the detailed construction of caliper and pincers block, not providing the associated mechanisms as driver element for making pincers block and guide rail clamp, etc.

Also have " a kind of progressive safety gear " as Authorization Notice No. CN203497871U discloses, this patent formula has its specification sheets the 0013rd section of technique effect referred, but there is the described shortcoming of aforementioned CN201325807Y equally except making baroque shortcoming because using two lifting rod.

And then have " a kind of elevator safety gear of electromagnetic control " as Authorization Notice No. CN203885761U discloses, description according to this patent is substantially known: when power is off, magnet coil (patent claims coil) dead electricity, iron core action, lifting rod is driven by iron core, drive a pair contract block (a pair contract block with aspectant stateful connection on connecting panel) motion by lifting rod by connecting panel, and be clamped in guide rail and lift car is stopped.But have the following disadvantages: one, the structure due to a pair voussoir is lost and is rationally such as lacked necessary guiding with spacing, and the stationarity of thus moving is difficult to guarantee; Its two, owing to directly making lifting rod action by iron core, thus need to make iron core have enough application forces, and the enough application force of iron core to lifting rod will be ensured, the volume as driver element coil certainly will be increased; Its three, aforesaid guide rail can not be applicable to.

In view of above-mentioned prior art, still have necessity of improvement, the applicant has done positive and useful design for this reason, defines technical scheme described below, and carried out analogue test at the experimental establishment of the applicant taking under secrecy provision, result proves practicable.

Summary of the invention

Task of the present utility model is to provide a kind of contributing to ensure brake voussoir easy motion to as effectively spacing to use with guiding of the braking voussoir of slide block mechanism, be conducive to making lifting rod drive braking voussoir using less application force and use the volume of the hydraulic gear reduced as driver element, be of value to and match with guide rail and use and meet safety tongs to the brake request of guide rail with have and be convenient to simplify integral structure and use and save manufacturing cost and the safety tongs of installation and use curve motion elevator easily.

Task of the present utility model has been come like this, a kind of safety tongs of curve motion elevator, comprise a caliper, the caliper top board of this caliper is provided with a top tumbler in the side in the caliper chamber back to caliper, and a lower tumbler is being provided with back to the side in caliper chamber equally on the caliper base plate of caliper, the position of upper and lower guide wheel corresponds to each other, one C font leaf spring, this C font leaf spring is arranged on the front side in described caliper chamber, and the opening in the C font leaf spring chamber of this C font leaf spring is towards the front side of described caliper, C font leaf spring the wall body faced each other and be respectively provided with a scotch block adjusting mechanism at correspondence position, one lifting rod driver train, this lifting rod driver train is arranged in described caliper chamber, and is positioned at the rear side in caliper chamber, the lifting rod that one short transverse being parallel to C font leaf spring chamber is arranged, the upper end of this lifting rod leans out described caliper top board and is configured with a lifting rod Connection Block, this lifting rod Connection Block is connected with lifting rod driver train, is connected with a lift plate in the lower end of lifting rod, a pair slide block mechanism, this is arranged on described caliper top in the position of the accent corresponding to described C font leaf spring chamber with the state faced each other to slide block mechanism, between base plate, and be connected with described scotch block adjusting mechanism and described lift plate simultaneously, this respectively comprises a scotch block and a braking voussoir to slide block mechanism, scotch block moves in the position of the accent corresponding to described C font leaf spring chamber and is arranged on described caliper top, between base plate, and be connected with described scotch block adjusting mechanism, braking voussoir and scotch block bearing fit, and be connected with described lift plate, be characterised in that: also include an actuating unit, this actuating unit is arranged on the car bottom girder of lift car in a state of use, and be connected with described lifting rod driver train, the left side board and right side board of described caliper are respectively provided with single-revolution axle at the correspondence position of the side back to described caliper chamber, a pair described slide block mechanism also respectively includes and is limited in guide plate a pair, one roller frame and one group of roller, a pair spacing guide plate is arranged with the state faced each other, and this is to the left side of the short transverse of spacing guide plate and described braking voussoir bearing fit, and the right side of the short transverse of a pair spacing guide plate and described scotch block are fixed, roller frame is arranged between scotch block and braking voussoir, and one end of a roller frame extension spring is connected with in the middle position of the bottom of this roller frame, and the other end of roller frame extension spring is fixed on braking voussoir positioning plate, this braking voussoir positioning plate is fixed on described caliper base plate, one group of roller follows the short transverse interval setting of roller frame with transverse state, described braking voussoir contacts towards the side of one group of roller with one group of roller.

In a specific embodiment of the present utility model, the caliper base plate of described caliper is provided with one for the C font leaf spring supporting fixing screw to the supporting of described C font leaf spring, this C font leaf spring supporting fixing screw to probe in described caliper chamber and contacts with the bottom surface of C font leaf spring.

In another specific embodiment of the present utility model, a scotch block upper embedded groove is offered towards the side of caliper base plate in the position at the top corresponding to described scotch block at described caliper top board, and scotch block support fins is extended with on described caliper base plate and in the position corresponding to a pair slide block mechanism, caulking groove on this scotch block support fins and under the position of the bottom corresponding to described scotch block offers a scotch block, a convex platform is configured with at the top of described scotch block, and bottom is configured with a lower bulge, convex platform matches with described scotch block upper embedded groove, lower bulge matches with caulking groove under described scotch block, a scotch block adjustment screw is offered back to the side of described braking voussoir and in the position corresponding to described scotch block adjusting mechanism at scotch block, the position that scotch block adjusting mechanism is corresponding to this scotch block adjustment screw is connected with scotch block, a C font leaf spring supporting base is configured with in the bottom of the short transverse of scotch block and in the position of the side back to described braking voussoir, described C font leaf spring is bearing on this C font leaf spring supporting base, adjustment bolt hole is offered on described C font leaf spring and corresponding to the position of scotch block adjusting mechanism, scotch block adjusting mechanism adjusts screw in the position corresponding to adjustment screw hole with described scotch block and is connected.

In another specific embodiment of the present utility model, short transverse in the described front side of braking voussoir and the correspondence position of rear side and along braking voussoir respectively offers a spacing guide plate sliver mating groove, a spacing guide plate sliver is configured with in each bending in the left side of described a pair spacing guide plate, this spacing guide plate sliver and spacing guide plate sliver mating groove bearing fit, the right side of a pair spacing guide plate respectively offers a pair spacing guide plate bolt hole, a pair scotch block bolt hole is offered on described scotch block and corresponding to the position of a pair spacing guide plate bolt hole, the position that a pair spacing guide plate is corresponding to a pair scotch block bolt hole is fixed by means of described a pair spacing guide plate bolt hole and scotch block by spacing guide plate bolt of rear end plate, wherein: the bottom of described braking voussoir is corresponding with described braking voussoir positioning plate.

In another specific embodiment of the present utility model, at described lift plate towards the side of described lifting rod and the middle position of length direction being positioned at lift plate is configured with a lifting rod hinged seat, lower end and this lifting rod hinged seat of described lifting rod are hinged, a lift axle guide is respectively offered at the left end and right-hand member that lift plate, a lift axis hole is offered in the bottom of the short transverse of described braking voussoir, this lift axis hole is equipped a lift axle, this lift axle inserts lift bearing guide groove and is limited by holding piece, this holding piece is jump ring or spring cotter.

Also have in a specific embodiment of the present utility model, be configured with braking voussoir tooth at described braking voussoir back to the surface of the side of described roller frame.

More of the present utility model and in a specific embodiment, described scotch block adjusting mechanism comprises an adjustment screw and an adjustment screw spring, adjustment screw adjusts screw in the position corresponding to the adjustment screw hole on described C font leaf spring with described scotch block and is connected, adjustment screw spring is nested with on adjustment screw, one end of this adjustment screw spring is bearing on C font leaf spring, and the other end is bearing in the end of adjustment screw.

In an of the present utility model and then specific embodiment, described lifting rod driver train comprises oil cylinder and lift arm, oil cylinder is arranged in described caliper chamber in the position of the rear side corresponding to described C font leaf spring, and the oil cylinder post of this oil cylinder leans out described caliper top board, described lifting rod Connection Block is connected with the front end of lift arm, and the rear end lifting arm is connected with oil cylinder post and limit nut by the lift arm screwed on oil cylinder post and limit, described actuating unit is connected with described oil cylinder hydraulic oil circuit.

Of the present utility model again more and in a specific embodiment, the Hydraulic Pump that described actuating unit comprises motor and is connected with described oil cylinder hydraulic oil circuit, motor and hydraulic pump driving connect, and are arranged on the car bottom girder of lift car together with motor by Hydraulic Pump.

In an again of the present utility model and then specific embodiment, described top tumbler is arranged on top tumbler axle bed rotationally by top tumbler axle, and this top tumbler axle bed is fixed on described caliper top board; Described lower tumbler is arranged on lower tumbler axle bed rotationally by lower guide wheel shaft, and the position that this lower tumbler axle bed is corresponding to top tumbler axle bed is fixed on described caliper base plate.

The technical scheme that the utility model provides is relative to one of the technique effect of prior art, owing to adding a pair spacing guide plate, a roller frame and one group of roller in the structural system of a pair slide block mechanism, thus can have good spacing and directional tagging to braking voussoir, braking voussoir easy motion can be ensured; Two, because lifting rod driver train can make lifting rod drive the braking voussoir of a pair slide block mechanism to lifting rod direct effect, be extremely conducive to minimizing action transmission link and the structure of the lifting rod driver train as driver element can be simplified; Three, owing to being respectively provided with axis of revolution on the left side board and right side board of caliper, thus being matched with the revolution axle bed on the bottom girder of lift car by axis of revolution and meet coordinating and brake request of safety tongs and guide rail; Four, owing to having abandoned velocity limiter, thus not only integral structure has been able to effective simplification, and convenient to manufacture, cost-saving and facilitate installation and use.

Accompanying drawing explanation

Fig. 1 is the first example structure figure of the present utility model.

Fig. 2 is using state schematic diagram of the present utility model.

Fig. 3 is application examples schematic diagram of the present utility model.

Fig. 4 is another embodiment of the present utility model and using state schematic diagram.

Detailed description of the invention

In order to enable the inspector of Patent Office especially the public clearly understand technical spirit of the present utility model and beneficial effect, applicant will elaborate below by way of example, but not all the restriction to the utility model scheme to the description of embodiment, any according to being only pro forma but not substantial equivalent transformation and all should being considered as the technical solution of the utility model category done by the utility model design.

In the following description every relate to upper and lower, left and right, front and rear directivity or claim the concept of directionality to be all for the location status residing for the figure described, thus can not be understood as being particularly limited to the technical scheme that the utility model provides.

Embodiment 1:

Refer to Fig. 1, illustrate in this Fig. 1: a caliper 1, the caliper top board 11 of this caliper 1 is provided with a top tumbler 13 at the side pivot in the caliper chamber 12 back to caliper 1, and a lower tumbler 15 is being provided with back to the side pivot in caliper chamber 12 equally on the caliper base plate 14 of caliper 1, the position of upper and lower guide wheel 13,15 corresponds to each other, offer a cage guide groove 114 in the middle position of the front side of caliper top board 11, and be respectively fixed with a braking voussoir upper limit post 115 in the position of the both sides corresponding to cage guide groove 114, one C font leaf spring 2, this C font leaf spring 2 is arranged on the front side in described caliper chamber 12, and the opening in the C font leaf spring chamber 21 of this C font leaf spring 2 is towards the front side of caliper 1, C font leaf spring 2 the wall body faced each other and be respectively provided with a scotch block adjusting mechanism 22 at correspondence position, one lifting rod driver train 3, this lifting rod driver train 3 is arranged in caliper chamber 12, and is positioned at the rear side in caliper chamber 12, the lifting rod 4 that one short transverse being parallel to C font leaf spring chamber 21 is arranged, the upper end of this lifting rod 4 leans out caliper top board 11 in the position corresponding to the lifting rod resigning hole 112 be opened on caliper top board 11 and is configured with the lifting rod Connection Block 41 that a shape is U-shaped, this lifting rod Connection Block 41 is connected with lifting rod driver train 3, is connected with a lift plate 42 in the lower end of lifting rod 4, a pair slide block mechanism 5, this is arranged on caliper top in the position of the accent corresponding to C font leaf spring chamber 21 with the state faced each other to slide block mechanism 5, base plate 11, between 14, and simultaneously with scotch block adjusting mechanism 22 and lift plate 42 and be connected, this respectively comprises scotch block 51 and a braking voussoir 52 to slide block mechanism 5, scotch block 51 moves in the position of the accent corresponding to C font leaf spring chamber 21 and is namely arranged on caliper top adjustably, base plate 11, between 14, and be connected with aforesaid scotch block adjusting mechanism 22, braking voussoir 52 and scotch block 51 bearing fit, and be connected with aforesaid lift plate 42.

Structural system as the safety tongs of curve motion elevator of the present utility model also includes an actuating unit 6, this actuating unit 6 is arranged on (Fig. 2 and Fig. 3 shows) on the car bottom girder 81 of lift car 8 in a state of use, and the left side board and right side board of aforementioned caliper 1 are respectively provided with single-revolution axle 7 at the correspondence position of the respective side back to aforementioned caliper chamber 12, aforesaid a pair slide block mechanism 5 also respectively includes and is limited in guide plate 53 for a pair, one roller frame 54 and one group of roller 55, a pair spacing guide plate 53 is arranged with the state faced each other, and this is to the position in the left side of the short transverse of spacing guide plate 53 and braking voussoir 52 bearing fit, and the right side of the short transverse of a pair spacing guide plate 53 and aforesaid scotch block 51 are fixed, roller subrack 54 is arranged between scotch block 51 and braking voussoir 52, and one end of a roller frame extension spring 541 is connected with in the middle position of the bottom of this roller frame 54, and the other end of roller frame extension spring 541 is fixed on braking voussoir positioning plate 542, this braking voussoir positioning plate 542 is fixed on aforementioned caliper base plate 14, one group of roller 55 follows the short transverse interval setting rotationally of roller frame 54 with transverse state, aforementioned braking voussoir 52 contacts towards the side of one group of roller 55 with one group of roller 55.It can thus be appreciated that, due to the existence of roller frame 54 and one group of roller 55, make braking voussoir 52 indirectly with scotch block 51 bearing fit, and prior art will brake voussoir 52 directly and scotch block 51 bearing fit, and therefore the resistance of motion of braking voussoir 52 of the present utility model is minimum.

Continue to see Fig. 1, the caliper seat board 14 of aforementioned caliper 1 is provided with one for the C font leaf spring supporting fixing screw 16 to aforementioned C font leaf spring 2 supporting, this C font leaf spring supporting fixing screw 16 to be insinuated in aforementioned caliper chamber 12 and to contact with the bottom surface of C font leaf spring 2, this C font leaf spring fixing screw 16 is equipped with pair of locking nut 161, this contacts with the bottom surface of C font leaf spring 2 one of them lock nut (lock nut on the top of state shown in Fig. 1) in lock nut 161, and another lock nut (lock nut of the bottom of state shown in Fig. 1) in pair of locking nut 161 and the side contacts of caliper base plate 14 towards caliper chamber 12, the upper-lower position of C font leaf spring 2 can be changed by the adjustment to C font leaf spring supporting fixing screw 16, after completing adjustment, pair of locking nut 161 is locked.

A scotch block upper embedded groove 111 is offered towards the side of caliper base plate 14 in the position at top corresponding to scotch block 51 at aforementioned caliper top board 11, and scotch block support fins 141 is extended with on aforesaid caliper base plate 14 and in the position corresponding to a pair slide block mechanism 5, caulking groove 1411 on this scotch block support fins 141 and under the position of the bottom corresponding to scotch block 51 offers a scotch block, a convex platform 511 is configured with at the top of aforementioned scotch block 51, and bottom is configured with a lower bulge 512, convex platform 511 matches with aforesaid scotch block upper embedded groove 111, lower bulge 512 matches with caulking groove 1411 under described scotch block, a scotch block adjustment screw 513 is offered back to the side of aforementioned braking voussoir 52 and in the position corresponding to aforementioned scotch block adjusting mechanism 22 at scotch block 51, the position that scotch block adjusting mechanism 22 is corresponding to this scotch block adjustment screw 513 is connected with scotch block 51, a C font leaf spring supporting base 514 is configured with in the bottom of the short transverse of scotch block 5 and in the position of the side back to aforementioned braking voussoir 52, aforesaid C font leaf spring 2 is bearing on this C font leaf spring supporting base 514, offer on C font leaf spring 2 and in the position corresponding to scotch block adjusting mechanism 22 and adjust bolt hole 23, scotch block adjusting mechanism 22 adjusts screw 513 in the position corresponding to adjustment screw hole 23 with aforementioned scotch block and is connected.

By the adjustment to scotch block adjusting mechanism 22, can change the distance in opposite directions of the braking voussoir 52 of a pair slide block mechanism 5, aforesaid cage guide groove 114 corresponds between the braking voussoir 52 of a pair slide block mechanism 5.As preferred scheme, also can aforesaid scotch block support fins 141 towards on side roller frame back plate screw 1421 fix a roller frame back plate 142, the lower support of aforesaid roller frame 54 is on this roller frame back plate 142.

As shown in Figure 1, aforesaid braking voussoir positioning plate 542 adopts braking voussoir positioning plate screw 5421 to fix with the bottom of caliper base plate 14, more precisely fix with the bottom of scotch block support fins 141, and lean out scotch block support fins 141, so that the bottom supporting to aforesaid braking voussoir 52.And then offer an extension spring fixed orifice 5422 on braking voussoir positioning plate 542, the other end of aforementioned roller frame extension spring 541 is fixed on braking voussoir positioning plate 542 in the position corresponding to this extension spring fixed orifice 5422.

As shown in Figure 1 and for the location status shown in Fig. 1, short transverse in the aforesaid front side of braking voussoir 52 and the correspondence position of rear side and along braking voussoir 52 respectively offers a spacing guide plate sliver mating groove 521, aforesaid a pair spacing guide plate 53 each bending in left side and be configured with a spacing guide plate sliver 531, this spacing guide plate sliver 531 and spacing guide plate sliver mating groove 521 bearing fit, it can thus be appreciated that, spacing guide plate sliver 531 serves the effect of guide rail for spacing guide plate sliver mating groove 521, a pair spacing guide plate bolt hole 532 is respectively offered on the right side of a pair spacing guide plate 53, a pair scotch block bolt hole 515 is offered on aforementioned scotch block 51 and corresponding to the position of a pair spacing guide plate bolt hole 532, the position that a pair spacing guide plate 53 is corresponding to a pair scotch block bolt hole 515 is fixed with scotch block 51 by means of aforesaid a pair spacing guide plate bolt hole 532 by spacing guide plate bolt of rear end plate 533, and limit by executing the nut 5331 fitting over spacing guide plate bolt of rear end plate 533 end.As aforementioned, the bottom of braking voussoir 52 is corresponding with aforementioned braking voussoir positioning plate 542, plays braking voussoir 52 holding effect by braking voussoir positioning plate 542.

Still see Fig. 1, at aforesaid lift plate 42 towards the side of aforementioned lifting rod 4 and the middle position of length direction being positioned at lift plate 42 is configured with a lifting rod hinged seat 421, the lower end of aforementioned lifting rod 4 is articulated and connected by lifting rod hinging pin shaft and this lifting rod hinged seat 421, the lift axle guide 422 of an ovalize substantially is respectively offered at the lift left end of plate 42 and right-hand member, a lift axis hole 522 is offered in the bottom of the short transverse of aforementioned braking voussoir 52, this lift axis hole 522 is equipped a lift axle 5221, this lift axle 5221 inserts lift bearing guide groove 422 and is limited by holding piece 52211, in the present embodiment, holding piece 52211 is spring cotter, but also can use jump ring, when using jump ring, so on lift axle 5221, offer jump-ring slot, because the present embodiment uses spring cotter to serve as holding piece 52211, thus on lift axle 5221, cotter-pin hold is offered.As preferred scheme, also on lift axle 5221, spacer 52212 and a packing ring 52213 can be added in the position of both sides corresponding respectively to lift plate 42.

And then, namely braking voussoir tooth 523 is configured with back to the surface of the side of scotch block 51 back to the side of aforementioned roller frame 54 at aforementioned braking voussoir 52, if replace the braking voussoir tooth 523 of schematic structure with groined type striped or floating-point shape flange, equivalent replacement so should be considered as.

Aforesaid scotch block adjusting mechanism 22 preferably but not the structure be definitely limited to is as follows: comprise an adjustment screw 221 and an adjustment screw spring 222, adjustment screw 221 adjusts screw 513 in the position corresponding to the adjustment screw hole 23 on aforementioned C font leaf spring 2 with aforementioned scotch block and is connected, adjustment screw spring 222 is nested with on adjustment screw 221, one end of this adjustment screw spring 222 is bearing on C font leaf spring 2, and the other end is bearing in the end of adjustment screw 221.

Aforesaid lifting rod driver train 3 comprises an oil cylinder 31 and lift arm 32, oil cylinder 31 is arranged in aforesaid caliper chamber 12 in the position of the rear side corresponding to aforementioned C font leaf spring 2, and the oil cylinder post 311 of this oil cylinder 31 leans out aforesaid caliper top board 11 in the position corresponding to the oil cylinder post resigning hole 113 be opened on caliper top board 11, aforesaid lifting rod Connection Block 41 is connected with the front end lifting arm 32 by bearing pin 411, and the rear end lifting arm 32 is connected with oil cylinder post 311 and limit nut 3111 limit by screwing (by screw thread) lift arm on oil cylinder post 311.Above mentioned actuating unit 6 is connected with oil cylinder 31 hydraulic circuit.

The Hydraulic Pump 62 that above mentioned actuating unit 6 comprises motor 61 and is connected with oil cylinder 31 hydraulic circuit, motor connects (namely transmission coordinates) with Hydraulic Pump 62 transmission, and is arranged on the car bottom girder 81 of the lift car 8 illustrated by Fig. 3 together with motor 61 by Hydraulic Pump 62.As shown in Figure 2, the Hydraulic Pump of Hydraulic Pump 62 enters, oil return line 621,622 is connected with aforesaid oil cylinder 31, and according to general knowledge, Hydraulic Pump 62 is furnished with fuel tank 63, and namely Hydraulic Pump 62 is located in fuel tank 63, is arranged on car bottom girder 81 together with motor 61 by fuel tank 63.

Above mentioned top tumbler 13 is arranged on top tumbler axle bed 132 rotationally by top tumbler axle 131, and this top tumbler axle bed 132 is fixed on aforesaid caliper top board 11; Above mentioned lower tumbler 15 is arranged on lower tumbler axle bed 152 rotationally by lower guide wheel shaft 151, and the position that this lower tumbler axle bed 152 is corresponding to top tumbler axle bed 132 is fixed on aforementioned caliper base plate 14.

Embodiment 2:

Refer to Fig. 4, as shown in Figure 4, caliper 1 has additional an oil cylinder adapter plate 17, this oil cylinder adapter plate 17 walks abreast with aforesaid caliper top board 11, the oil cylinder 31 of aforementioned lifting rod driver train 3 is fixed on oil cylinder adapter plate 17, and the oil cylinder post 311 of oil cylinder 31 is towards caliper top board 11, namely oil cylinder post 311 stretches towards the direction of lifting rod 4 through oil cylinder adapter plate 17, to lift in space that arm 32 formed between caliper top board 11 with oil cylinder adapter plate 17 and to be connected with lifting rod Connection Block 41 and oil cylinder post 311.It can thus be appreciated that, oil cylinder 31 is shifted out caliper chamber 12 and can produce action effect to lifting rod 4 equally, and will be understood that equally and belong to technology contents category disclosed in the utility model.All the other are all with the description to embodiment 1.

Application examples:

Refer to Fig. 2 and Fig. 3 and composition graphs 1, show lift car 8(lift car 8 at this Fig. 2 and Fig. 3 to be shown by Fig. 3) car bottom girder 81 and show the guide rail 9 run for curve motion elevator, caliper 1 of the present utility model is matched with the revolution axle bed 811 be arranged on (being fixed on) car bottom girder 81 by aforesaid axis of revolution 6, and aforesaid upper and lower guide wheel 13,15 forms rolling pair (contacting with the guide pass of guide rail 9) with guide rail 9.Under elevator is in running order, the utility model moves with lift car 8 with car bottom girder 81, and shown in upper and lower guide wheel 13,15(Fig. 2, state evolution is left and right guide wheel) against guide wheel 9 and move.Actuating unit 6 and lifting rod driver train are in off working state, are namely in not to the state of lifting rod 4 generation effect, remain rational gap, do not produce the clamping action to guide rail 9 between the braking voussoir 52 of a pair slide block mechanism 5 and guide rail 9.

When the limit value of elevator speed beyond specified speed, signal is given to actuating unit 6 by the elevator speed sensor of electric life controller, motor 61 is worked, Hydraulic Pump 62 is driven by motor 61, by Hydraulic Pump 62, the oil cylinder 31 of lifting rod driver train 3 is worked, oil cylinder post 311 stretches outside cylinder body, drives lift arm 32 by oil cylinder post 311, drives lifting rod by lift arm 32.Location status for shown in Fig. 2: drive lifting rod 4 to left movement, because the braking voussoir 52 of a pair slide block mechanism 5 is respectively connected (lift axle 5221 and be placed in the lift axle guide 422 lifting plate 42) with lift plate 42 by lift axle 5221, thus drive lift axle 5221 to during left dislocation by lift plate 42 at lifting rod 4, drive braking voussoir 52 to left dislocation by lift axle 5221.Due to the shape of braking voussoir 52 in truncated rectangular pyramids body, thus the braking voussoir 52 of a pair slide block mechanism 5 shows as and closes up trend toward each other, is reliably clamped by correspondence guide rail 9 therebetween, makes lift car 8 stop on the rail 9, to ensure safety.In aforementioned process, owing to offering a pair spacing guide plate sliver mating groove 521 on braking voussoir 52, spacing guide plate sliver 531 again owing to be limited in guide plate 53 for a pair forms sliding pair with spacing guide plate sliver mating groove 521, also because the side of braking voussoir 52 towards roller frame 54 contacts with one group of roller 55, thus brake voussoir 52 and be able to easy motion and drag minimization, guarantee reliably to clamp effect to guide rail 9.

Claims (10)

1. a kind of safety tongs of curve motion elevator, comprise a caliper (1), go up at the caliper top board (11) of this caliper (1) and the side in the caliper chamber (12) back to caliper (1) is provided with a top tumbler (13), and go up at the caliper base plate (14) of caliper (1) and be provided with a lower tumbler (15) back to the side of caliper chamber (12) equally, the position of upper and lower guide wheel (13,15) corresponds to each other, one C font leaf spring (2), this C font leaf spring (2) is arranged on the front side of described caliper chamber (12), and the opening in the C font leaf spring chamber (21) of this C font leaf spring (2) is towards the front side of described caliper (1), C font leaf spring (2) the wall body faced each other and be respectively provided with a scotch block adjusting mechanism (22) at correspondence position, one lifting rod driver train (3), this lifting rod driver train (3) is arranged in described caliper chamber (12), and is positioned at the rear side of caliper chamber (12), the lifting rod (4) that one short transverse being parallel to C font leaf spring chamber (21) is arranged, the upper end of this lifting rod (4) leans out described caliper top board (11) and is configured with a lifting rod Connection Block (41), this lifting rod Connection Block (41) is connected with lifting rod driver train (3), is connected with a lift plate (42) in the lower end of lifting rod (4), a pair slide block mechanism (5), this is arranged on described caliper top in the position of the accent corresponding to described C font leaf spring chamber (21) with the state faced each other to slide block mechanism (5), base plate (11, 14) between, and be connected with described scotch block adjusting mechanism (22) and described lift plate (42) simultaneously, this respectively comprises a scotch block (51) and braking voussoir (52) to slide block mechanism (5), scotch block (51) moves in the position of the accent corresponding to described C font leaf spring chamber (21) and is arranged on described caliper top, base plate (11, 14) between, and be connected with described scotch block adjusting mechanism (22), braking voussoir (52) and scotch block (51) bearing fit, and be connected with described lift plate (42), it is characterized in that: also include an actuating unit (6), this actuating unit (6) is arranged on the car bottom girder of lift car in a state of use, and be connected with described lifting rod driver train (3), the left side board and right side board of described caliper (1) are respectively provided with single-revolution axle (7) at the correspondence position of the side back to described caliper chamber (12), described a pair slide block mechanism (5) also respectively includes and is limited in guide plate (53) for a pair, one roller frame (54) and one group of roller (55), a pair spacing guide plate (53) is arranged with the state faced each other, and this is to the left side of the short transverse of spacing guide plate (53) and described braking voussoir (52) bearing fit, and the right side of the short transverse of a pair spacing guide plate (53) and described scotch block (51) are fixed, roller frame (54) is arranged between scotch block (51) and braking voussoir (52), and one end of a roller frame extension spring (541) is connected with in the middle position of the bottom of this roller frame (54), and the other end of roller frame extension spring (541) is fixed in braking voussoir positioning plate (542), this braking voussoir positioning plate (542) is fixed on described caliper base plate (14), one group of roller (55) follows the short transverse interval setting of roller frame (54) with transverse state, described braking voussoir (52) contacts towards the side of one group of roller (55) with one group of roller (55).

2. the safety tongs of curve motion elevator according to claim 1, it is characterized in that being provided with C font leaf spring supporting fixing screw (16) for supporting described C font leaf spring (2) on the caliper base plate (14) of described caliper (1), this C font leaf spring supporting fixing screw (16) to probe in described caliper chamber (12) and contacts with the bottom surface of C font leaf spring (2).

3. the safety tongs of curve motion elevator according to claim 1, it is characterized in that offering a scotch block upper embedded groove (111) towards the side of caliper base plate (14) in the position at the top corresponding to described scotch block (51) described caliper top board (11), and above and in the position corresponding to a pair slide block mechanism (5) be extended with scotch block support fins (141) at described caliper base plate (14), caulking groove (1411) on this scotch block support fins (141) and under the position of the bottom corresponding to described scotch block (51) offers a scotch block, a convex platform (511) is configured with at the top of described scotch block (51), and bottom is configured with a lower bulge (512), convex platform (511) matches with described scotch block upper embedded groove (111), lower bulge (512) matches with caulking groove (1411) under described scotch block, scotch block adjustment screw (513) is offered back to the side of described braking voussoir (52) and corresponding to the position of described scotch block adjusting mechanism (22) at scotch block (51), the position that scotch block adjusting mechanism (22) is corresponding to this scotch block adjustment screw (513) is connected with scotch block (51), C font leaf spring supporting base (514) is configured with in the position of the side back to described braking voussoir (52) in the bottom of the short transverse of scotch block (5), described C font leaf spring (2) is bearing on this C font leaf spring supporting base (514), above and in the position corresponding to scotch block adjusting mechanism (22) offer at described C font leaf spring (2) and adjust bolt hole (23), scotch block adjusting mechanism (22) adjusts screw (513) in the position corresponding to adjustment screw hole (23) with described scotch block and is connected.

4. the safety tongs of curve motion elevator according to claim 1, it is characterized in that in the described front side of braking voussoir (52) and the correspondence position of rear side and respectively offer a spacing guide plate sliver mating groove (521) along the short transverse of braking voussoir (52), described a pair spacing guide plate (53) each bending in left side and be configured with a spacing guide plate sliver (531), this spacing guide plate sliver (531) and spacing guide plate sliver mating groove (521) bearing fit, the right side of a pair spacing guide plate (53) respectively offers a pair spacing guide plate bolt hole (532), go up described scotch block (51) and offer a pair scotch block bolt hole (515) in the position corresponding to a pair spacing guide plate bolt hole (532), the position that a pair spacing guide plate (53) is corresponding to a pair scotch block bolt hole (515) is fixed with scotch block (51) by means of described a pair spacing guide plate bolt hole (532) by spacing guide plate bolt of rear end plate (533), wherein: the bottom of described braking voussoir (52) is corresponding with described braking voussoir positioning plate (542).

5. the safety tongs of curve motion elevator according to claim 1, it is characterized in that at described lift plate (42) towards the side of described lifting rod (4) and the middle position of length direction being positioned at lift plate (42) is configured with a lifting rod hinged seat (421), lower end and this lifting rod hinged seat (421) of described lifting rod (4) are hinged, a lift axle guide (422) is respectively offered at the left end and right-hand member that lift plate (42), a lift axis hole (522) is offered in the bottom of the short transverse of described braking voussoir (52), this lift axis hole (522) is equipped a lift axle (5221), this lift axle (5221) inserts lift bearing guide groove (422) and is limited by holding piece (52211), this holding piece (52211) is jump ring or spring cotter.

6. the safety tongs of curve motion elevator according to claim 1, is characterized in that being configured with braking voussoir tooth (523) described braking voussoir (52) back to the surface of the side of described roller frame (54).

7. the safety tongs of curve motion elevator according to claim 3, it is characterized in that described scotch block adjusting mechanism (22) comprises an adjustment screw (221) and adjustment screw spring (222), adjustment screw (221) adjusts screw (513) in the position corresponding to the adjustment screw hole (23) on described C font leaf spring (2) with described scotch block and is connected, adjustment screw spring (222) is nested with in adjustment screw (221), one end of this adjustment screw spring (222) is bearing on C font leaf spring (2), the other end is bearing in the end of adjustment screw (221).

8. the safety tongs of curve motion elevator according to claim 1, it is characterized in that described lifting rod driver train (3) comprises oil cylinder (31) and lift arm (32), oil cylinder (31) is arranged in described caliper chamber (12) in the position of the rear side corresponding to described C font leaf spring (2), and the oil cylinder post (311) of this oil cylinder (31) leans out described caliper top board (11), described lifting rod Connection Block (41) is connected with the front end of lift arm (32), and the rear end lifting arm (32) is connected with oil cylinder post (311) and limit nut (3111) by the lift arm screwed on oil cylinder post (311) and limit, described actuating unit (6) is connected with described oil cylinder (31) hydraulic circuit.

9. the safety tongs of curve motion elevator according to claim 8, it is characterized in that the Hydraulic Pump (62) that described actuating unit (6) comprises motor (61) and is connected with described oil cylinder (31) hydraulic circuit, motor (61) and Hydraulic Pump (62) transmission connect, and are arranged on the car bottom girder of lift car together with motor (61) by Hydraulic Pump (62).

10. the safety tongs of curve motion elevator according to claim 1, it is characterized in that described top tumbler (13) is arranged on top tumbler axle bed (132) rotationally by top tumbler axle (131), and this top tumbler axle bed (132) is fixed on described caliper top board (11); Described lower tumbler (15) is arranged on lower tumbler axle bed (152) rotationally by lower guide wheel shaft (151), and the position that this lower tumbler axle bed (152) is corresponding to top tumbler axle bed (132) is fixed on described caliper base plate (14).