CN208578309U - A kind of catching device optimizing anti-sagging reliability - Google Patents

Abstract

The utility model discloses the catching devices that one kind can optimize anti-sagging reliability, including rack, runner, multiple trunnions, constriction, the constriction include flipping block, scotch and triggering block；It further include the 4th shaft；It further include the second shaft, the flipping block is connected by the second shaft with rack；It further include the support portion being set in rack, the support zone is in the side of scotch, in thrust of the scotch by trunnion, scotch is by rotation so that scotch part is subjected to displacement in the circumferential direction of runner, for the support zone on the deformation trace, the support portion is used to limit the position of the displacement stop；It further include the limited block being set on flipping block.This catching device structure is simple, controllable for realizing scaffold maximum speed of falling, while reliable performance when the structure design of this catching device may make catching device to realize anti-fall locking.

Description

A kind of catching device optimizing anti-sagging reliability

Technical field

The utility model relates to construction equipment technology fields, can optimize anti-sagging reliability more particularly to one kind Catching device.

Background technique

Lifting scaffold equipment is the new type scaffold that beginning of this century fast development is got up, and is had to China's construction technology progress It has a major impact.

Elevating scaffold, which refers to, to be set up certain altitude and is attached in engineering structure, by itself lifting device and dress It sets, successively can climb or decline with engineering structure, the external scaffolding with overturn-preventing, falling proof device, wherein falling proof device Or catching device is the important safety attachment on raise scaffold, it, can be to scaffold when improper whereabouts occurs for scaffold It is constrained, achievees the purpose that avoid that accident occurs.

In the prior art, such as application No. is 201020668449.2 utility model patent disclose it is a kind of specific for The anti-falling device for adhesive elevating scaffold applied of construction also has on the basis of performance prevents scaffold from falling extremely Have the characteristics that structure is simple, sensitive reliable, fall arrest is apart from short.

Further structure optimization is made to the catching device for being currently used for scaffold fall arrest, further to develop building for China Construction level is built, is those skilled in the art's technical problem urgently to be resolved.

Utility model content

Further structure optimization is made to the catching device for being currently used for scaffold fall arrest for set forth above, with into one The problem of construction that step develops China is horizontal, is those skilled in the art's technical problem urgently to be resolved, this is practical new Type provides a kind of catching device that can optimize anti-sagging reliability, this catching device structure is simple, falls maximum for realizing scaffold Speed is controllable, while the structure of this catching device designs reliable performance when catching device may make to realize anti-fall locking.

The catching device that one kind provided by the utility model can optimize anti-sagging reliability solves to ask by following technical essential Topic: one kind can optimize the catching device of anti-sagging reliability, including rack, be installed on the runner in rack by first rotating shaft, described Runner can be rotated around the axis of first rotating shaft, and multiple trunnions are provided in the outer rim of runner, and the trunnion is annular in shape between each other Uniformly distributed distribution relation, further includes for realizing the constriction of runner locking, the constriction includes flipping block, scotch and triggering Block, the scotch and triggering block are both secured on flipping block；

It further include the 4th shaft, the scotch is rotationally connected on flipping block by the 4th shaft, and under scaffold It falls in driving runner rotation process, for scotch when by the thrust applied by catching device upper journal, scotch can be around described the The rotation of four shafts；

It further include the second shaft, the flipping block is connected by the second shaft with rack, and flipping block can be around the second shaft Axis rotation, the second shaft is in the cooperation position on flipping block between scotch and triggering block；

Under constriction and runner disengaged position, flipping block torque caused by both scotch and triggering block gravity is made Under, using the second shaft as shaft, to following replying state: triggering block is located in the motion profile of trunnion, and scotch is located at branch Other than the motion profile of ear；

It falls and is driven in runner rotation process in scaffold, when triggering block is constrained by any trunnion, triggering block is right Answer drives flipping block to rotate around the second shaft under the active force of trunnion, and scotch turns to the motion profile of trunnion with flipping block It is interior；

It further include the support portion being set in rack, the support zone is propped up in the side of scotch in scotch When the thrust of ear, scotch by rotation so that scotch part is subjected to displacement in the circumferential direction of runner, the support zone In on the deformation trace, the support portion is used to limit the position of the displacement stop；

The first rotating shaft, the second shaft, the 4th shaft three axis be parallel to each other；

It further include the limited block being set on flipping block, the limited block is for being limited to movement rail of the scotch to trunnion In mark when movement, dead-centre position that scotch rotates around the 4th shaft.

Specifically, this programme is when in use, since catching device and guide rail have relatively on the length direction along guide rail Movement, in the above relative movement, when the trunnion on guide rail cross tube and runner interacts, cross bar drives runner It is rotated by shaft of first rotating shaft, i.e. elevating scaffold decrease speed is faster, and runner rotates faster around first rotating shaft.

In the present solution, using the second shaft as rotation center, scotch and triggering block are equivalent to as institute flipping block on constriction State on rotation center a pair of opposite side in not ipsilateral clump weight, be runner under constraints above portion and runner disengaged position with Constriction is contactless, and flipping block is only in the state of the torque that two sides clump weight gravity generates.In this way, when runner is rotating In the process, when any trunnion streaks triggering block position, corresponding trunnion promotes flipping block with the second shaft triggering block application For center of rotation, the power of scotch side to overturn to where entering runner rotary motion trace；It is closed in the constraint of corresponding trunnion and triggering block After system removes, flipping block rotates under the action of the clump weight of two sides around the second shaft to restore state.And streaked due to trunnion Track is fixed, in this way, when each trunnion is successively acted on triggering block, position of the fulcrum that each triggering block and scotch can move to Relatively fixed, the turnaround time of flipping block is relatively fixed, in this way, when next trunnion turns at scotch position, stop Whether block determines can scotch realize locking to runner via deviating from the motion profile of trunnion, and next trunnion Whether scotch is determined by deviating from the motion profile of trunnion by the velocity of rotation of runner when turning to scotch position, above turn The velocity of rotation of wheel determines by the decrease speed of guide rail, in this way, when the revolving speed of runner exceeds certain revolving speed, since scotch comes It has an effect with trunnion not as good as by deviating from the motion profile of trunnion, in this way, being used for by the radial direction setting in runner Scotch to be in contact condition with trunnion provides the support portion of support, or is directly used by flipping block, the transmitting of the second shaft In the power of locking runner, the locking to runner rotation can be realized, can by the trunnion on runner after the above runner is locked The locking to guide rail cross tube is realized, to reach anti-fall purpose.

In the present solution, by being limited to include support portion in rack, while scotch is turned by the 4th shaft and flipping block Dynamic connection, in this way, scotch, when by the thrust applied by catching device upper journal, scotch can occur to turn under the thrust Dynamic or sliding, due to defined above parallel for first rotating shaft, the second shaft, the 4th shaft three's axis, scotch is with flipping block It is rotated under the action of triggering block around the second shaft, when scotch is entered the rotary motion trace of trunnion by the outside of runner, scotch It rotates under the action of corresponding trunnion, since the direction of motion of corresponding trunnion is the circumferential direction along runner, in this way, right Answer trunnion that scotch part is driven to rotate to the direction of motion along corresponding trunnion by shaft of the 4th shaft, in this way, scotch It is subjected to displacement in the circumferential direction of runner.By the way that support portion is arranged in the rack of catching device, portion supported above is scotch Effect of contraction has been subjected to displacement in the circumferential direction of runner, i.e. support portion is used to provide the supporting surface of support scotch, in this way, It can be achieved to transmit the power for locking runner directly between runner and rack by scotch, and flipping block itself, constriction and machine The mechanical property of shaft between frame is only it is required that flipping block enables flipping block repeatedly past when corresponding catching device works Physical pendulum is dynamic, in this way, can directly be existed by scotch by the connection relationship for being designed as specific scotch and flipping block Transmission force between runner and rack, to achieve the purpose that optimize corresponding catching device stress, improve corresponding catching device reliability.

As those skilled in the art, the circumferential direction actually for scotch in runner is moved to occur with support portion Interaction, actually scotch can be slided along flipping block can also realize above-mentioned purpose of utility model, but use the above 4th Shaft realizes the scheme that scotch is connected with flipping block, not only makes constriction structure more simple；Simultaneously as stop itself Block can be rotated with flipping block around the second shaft, and position of the trunnion in space when constraint of each secondary scotch by corresponding trunnion Setting may be different with state, if being set as the above relationship that is slidably connected, in this way, can not to be used for and support on scotch Portion effect face and support portion on be used for scotch thought of as face can not be bonded completely, be unfavorable for support portion pair in this way The stability of scotch support, using this programme, since scotch can be rotated around the 4th shaft, flipping block can turn around the second shaft It is dynamic, in this way, it is ensured that meaning trunnion in office is under the restrained condition of scotch, when scotch stress, pass through flipping block rotate, stop Block rotation obtains support portion to the most reliable holding state of scotch.

The side for being used to contact with trunnion as those skilled in the art, such as scotch is leading portion, in the rear end of scotch Support portion is set, but needs to consider that support portion cannot directly interact with trunnion, specifically when setting, may be configured as For support zone in having the gap for crossing support portion on the side of trunnion or trunnion, the setting direction or form of scotch are full For sufficient scotch when contacting with trunnion, scotch is as the force transmission member between trunnion and support portion.

Meanwhile this catching device structure is simple, scaffold maximum speed of falling is controllable；Meanwhile compared to the prior art, such as Shen Please number are as follows: scheme provided by the utility application of CN201020668449.2 directly uses on existing runner this Body is used for the trunnion with cross bar phase separation as the component with constriction phase separation, in this way, can simplify the structure of catching device itself Design simultaneously as not needing to design the structures such as anti-fall card wheel, therefore aloows runner integrally formed or realizes runner locking Power transfer route upper connector or joint face it is less, in this way be conducive to catching device mechanical property reliability；Meanwhile compared to The prior art, the installation of constriction on the rack is using the outside for being installed on runner radial direction, in this way, convenient to first The both ends of shaft pass through rack and are constrained, to promote the bending resistance of first rotating shaft.

Simultaneously as scotch is moved with flipping block to the side for entering trunnion pivot region under the action of triggering block When, scotch under inertia it is possible that movement of the free end dyskinesia at the 4th rotating shaft position in space, in this way, It may cause the problem of scotch cannot well enter trunnion motion profile, in the present solution, by the way that the limited block is arranged, it is above Limited block is overturn during entering trunnion motion profile with flipping block for constraining scotch, but constraint scotch is not propping up It is overturn under ear effect around first rotating shaft, in this way, can further improve the reliability of this catching device.

Further technical solution are as follows:

As a kind of concrete implementation form, the scotch, flipping block are in tabular, in scotch to the fortune of trunnion In dynamic rail mark when movement, dead-centre position that scotch rotates around the 4th shaft are as follows: scotch turns to mutual with flipping block The location of when vertical.Using this programme, scotch is aloowed to enter branch in flipping block switching process as far as possible In the motion profile of ear, to realize the locking that rack rotates runner by support portion.

At work due to this programme, support portion provides supporting surface, described as the specific implementation of support portion Support portion is arranged in the top of first rotating shaft, and the support portion is to be arranged on the rack and open end is that the triangle of big end lacks Mouthful, support portion is used to constrain the supporting surface of scotch as an inclined-plane in triangular gap, and along runner under scaffold Rotation direction when rotating during drop, one end that inclined-plane is in front end is bottom end, and one end that inclined-plane is in rear end is top.It adopts With this programme, scotch is entered in notch by the open end of triangular gap, while by oblique where the restriction supporting surface Face, not only support portion handling ease, while can realize reliable constraint of the support portion to scotch, while inclined-plane is to the fortune of scotch It is dynamic that there is guiding role, can be used for that scotch is avoided to fail under the active force of trunnion with the constraint relationship of support portion.

It further include third shaft, the triggering block is connected by third shaft with flipping block, and triggering block can be turned with third Axis is shaft rotation；

Further include block, when the block is for limiting triggering block around the rotation of third shaft, rotates the position of stop, it is described Rotate stop are as follows: block is that triggering block or third shaft apply constraint and triggering block avoided further to rotate, what triggering block was stopped Point；

It falls and is driven in runner rotation process in scaffold, when triggering block is constrained by any trunnion, triggering block is right Answer under the active force of trunnion with block phase separation, and by block transmission force to drive flipping block to rotate around the second shaft, stop Block turns in the motion profile of trunnion with flipping block, at this point, due to passing through block transmission force between triggering block and flipping block, So when triggering block under the action of trunnion, force flipping block to rotate, so that scotch is fallen into the rotary motion trace of trunnion；

Rise in driving runner rotation process in scaffold, when triggering block is constrained by any trunnion, triggering block is right It answers and is rotated under the active force of trunnion around third shaft, so that corresponding trunnion is mutually staggered with triggering block, at this point, due to triggering block Realize being staggered for triggering block and trunnion relative position by rotating around third shaft, so when triggering block not by block to turning over Transmitting forces flipping block to rotate on switch block, so that the power of scotch and trunnion phase separation.

This programme is preferably arranged to third shaft, the 4th shaft, first rotating shaft, the second shaft axis when using In parallel.The lock that the transitive dependency of power rotates triggering block around third shaft in block between triggering block and flipping block in above procedure It is fixed.Since triggering block needs to rotate by shaft of third shaft at work, and in the prior art, triggering block and flipping block are realized Third shaft itself is not around itself axis when triggering block rotation can be used by the specific implementation that third shaft is rotatably connected Line rotation: if one end of third shaft and flipping block are welded to connect, be provided in triggering block for third shaft clearance fit Hole；Also may be configured as: third shaft itself is around own axis when triggering block is rotated using third shaft as axis: such as third One end of shaft is fixedly connected with triggering block or triggering block is an integral structure with third shaft, be provided on flipping block for The hole of third shaft clearance fit.So, block is when specific implementation is to triggering block rotational restraint, if third shaft and triggering block It rotates simultaneously, then may be configured as block and be fixed in rack, block immediate constraint triggers when third shaft goes to setting position Block or third shaft, can be by turning when using the implementation of constraint third shaft as those skilled in the art in third Blocking portion is arranged in the side of third shaft in the blocking portion of end face setting with the block phase separation of axis, and the above blocking portion can be phase For the end face or side convex block outstanding, i.e. block realizes the timing of triggering block rotation lock, convex block contacted with block avoid it is convex Block further rotates；Third shaft itself does not constrain third shaft around the block of own axis in triggering block rotation process Way of realization by block directly hinders triggering block further around third shaft rotation.

As those skilled in the art, for above scheme when realizing, actually triggering block cannot be around under the action of block Third shaft does 360 ° of rotations, and this programme needs to meet after completing the assembly with catching device: runner declines in scaffold When rotating in the process, trunnion can trigger triggering block and directly or indirectly be constrained by block；Runner is in scaffold uphill process transfer When dynamic, during the entire process of trunnion and triggering block phase separation, triggering block is not constrained by block directly or indirectly.

The triggering block set above is connected by third shaft with flipping block, while by design block, so that this programme Under the premise of meeting scaffold decline lock function, constriction does not influence the maximum speed of runner rotation during mentioning on scaffold Degree, therefore use the catching device of this programme not will cause scaffold when scaffold arbitrary speed is promoted and above mention and locked by catching device Efficiency when only, conducive to raising hoisting scaffold, simultaneously because scaffold, when above being mentioned, each trunnion is successively acted on triggering block When, only triggering block is rotated around third shaft on constriction, therefore the case where be flipped under trunnion effect compared to flipping block, this Scheme may make that bring the resistance that scaffold above mentions by catching device smaller.

As the specific installation and setting form of constriction, setting are as follows: second shaft is located at trunnion rotary motion trace Top, flipping block is in a strip shape, and scotch is located at the different ends of flipping block from triggering block.Using this programme, overturning is utilized as far as possible The length of block come serve as gravity generate torque the arm of force.

For convenience of constriction is changed in a free state, i.e., without under runner restrained condition, scotch is by trunnion motion profile The time of interior abjection, to control the triggering speed that this catching device realizes the rotation of runner locking runner, setting are as follows: scotch and triggering In block the two, the connection relationship of at least one and flipping block is to be detachably connected relationship.It can be removable with flipping block in this way, adjusting The quality for unloading the clump weight of connection, can be realized above-mentioned purpose.

For convenience of constriction is changed in a free state, i.e., without under runner restrained condition, scotch is by trunnion motion profile The time of interior abjection, to control the triggering speed that this catching device realizes the rotation of runner locking runner, setting are as follows: second shaft Link position on flipping block is adjustable on the length direction of flipping block, and the length direction is scotch and triggering block Line direction.Using this programme, i.e., by adjusting the means of torque arm length, realize above-mentioned purpose.

As the specific implementation for adjusting torque arm length, multiple hinge holes are provided on the flipping block, it is multiple hinged Hole is arranged along the length direction, and the second shaft is fixedly connected with rack, and flipping block passes through any hinge hole and the second shaft It is connected.

To avoid because flipping block position change on the second shaft axis influences trunnion triggering and touches block or influence stop Block causes the anti-fall performance of this programme unreliable with trunnion interaction, is arranged are as follows: and it further include limiting device, the limiting device For limiting position of the flipping block on the second shaft axis；External screw thread, the limiting device are provided in second shaft For two nuts being threadedly connected in the second shaft.This limit device structure is simple, easy to manufacture.

As the specific implementation of runner, the runner includes shell portion and header portion, and the shell portion is in Tubular, the header portion quantity is two pieces, and shell portion is respectively held and is respectively and fixedly provided with one piece of header portion, and header portion is in flat Plate；

N number of ear block is provided in each header portion, and the trunnion in each header portion is annularly uniformly distributed between each other；

Trunnion on two end plates part and is formed along the axis direction face one by one of runner in two ear blocks of face relationship One trunnion；

Each header portion is bolted with shell portion.Using this programme, each trunnion overlay area may make not only may be used It is wider, meanwhile, runner material is few, light-weight.Be bolted above scheme provide it is a kind of connection be easily achieved, simultaneously can avoid Such as introduce welding heat affected material mechanical performance, make each component part detachable with maintain easily and replace, reduce maintenance or The technical solution of use cost.

The utility model has the following beneficial effects:

In the present solution, by being limited to include support portion in rack, while scotch is turned by the 4th shaft and flipping block Dynamic connection, in this way, scotch, when by the thrust applied by catching device upper journal, scotch can occur to turn under the thrust Dynamic or sliding, due to defined above parallel for first rotating shaft, the second shaft, the 4th shaft three's axis, scotch is with flipping block It is rotated under the action of triggering block around the second shaft, when scotch is entered the rotary motion trace of trunnion by the outside of runner, scotch It rotates under the action of corresponding trunnion, since the direction of motion of corresponding trunnion is the circumferential direction along runner, in this way, right Answer trunnion that scotch part is driven to rotate to the direction of motion along corresponding trunnion by shaft of the 4th shaft, in this way, scotch It is subjected to displacement in the circumferential direction of runner.By the way that support portion is arranged in the rack of catching device, portion supported above is scotch Effect of contraction has been subjected to displacement in the circumferential direction of runner, i.e. support portion is used to provide the supporting surface of support scotch, in this way, It can be achieved to transmit the power for locking runner directly between runner and rack by scotch, and flipping block itself, constriction and machine The mechanical property of shaft between frame is only it is required that flipping block enables flipping block repeatedly past when corresponding catching device works Physical pendulum is dynamic, in this way, can directly be existed by scotch by the connection relationship for being designed as specific scotch and flipping block Transmission force between runner and rack, to achieve the purpose that optimize corresponding catching device stress, improve corresponding catching device reliability.

As those skilled in the art, the circumferential direction actually for scotch in runner is moved to occur with support portion Interaction, actually scotch can be slided along flipping block can also realize above-mentioned purpose of utility model, but use the above 4th Shaft realizes the scheme that scotch is connected with flipping block, not only makes constriction structure more simple；Simultaneously as stop itself Block can be rotated with flipping block around the second shaft, and position of the trunnion in space when constraint of each secondary scotch by corresponding trunnion Setting may be different with state, if being set as the above relationship that is slidably connected, in this way, can not to be used for and support on scotch Portion effect face and support portion on be used for scotch thought of as face can not be bonded completely, be unfavorable for support portion pair in this way The stability of scotch support, using this programme, since scotch can be rotated around the 4th shaft, flipping block can turn around the second shaft It is dynamic, in this way, it is ensured that meaning trunnion in office is under the restrained condition of scotch, when scotch stress, pass through flipping block rotate, stop Block rotation obtains support portion to the most reliable holding state of scotch.

The side for being used to contact with trunnion as those skilled in the art, such as scotch is leading portion, in the rear end of scotch Support portion is set, but needs to consider that support portion cannot directly interact with trunnion, specifically when setting, may be configured as For support zone in having the gap for crossing support portion on the side of trunnion or trunnion, the setting direction or form of scotch are full For sufficient scotch when contacting with trunnion, scotch is as the force transmission member between trunnion and support portion.

Meanwhile this catching device structure is simple, scaffold maximum speed of falling is controllable；Meanwhile compared to the prior art, such as Shen Please number are as follows: scheme provided by the utility application of CN201020668449.2 directly uses on existing runner this Body is used for the trunnion with cross bar phase separation as the component with constriction phase separation, in this way, can simplify the structure of catching device itself Design simultaneously as not needing to design the structures such as anti-fall card wheel, therefore aloows runner integrally formed or realizes runner locking Power transfer route upper connector or joint face it is less, in this way be conducive to catching device mechanical property reliability；Meanwhile compared to The prior art, the installation of constriction on the rack is using the outside for being installed on runner radial direction, in this way, convenient to first The both ends of shaft pass through rack and are constrained, to promote the bending resistance of first rotating shaft.

Simultaneously as scotch is moved with flipping block to the side for entering trunnion pivot region under the action of triggering block When, scotch under inertia it is possible that movement of the free end dyskinesia at the 4th rotating shaft position in space, in this way, It may cause the problem of scotch cannot well enter trunnion motion profile, in the present solution, by the way that the limited block is arranged, it is above Limited block is overturn during entering trunnion motion profile with flipping block for constraining scotch, but constraint scotch is not propping up It is overturn under ear effect around first rotating shaft, in this way, can further improve the reliability of this catching device.

Detailed description of the invention

Fig. 1 is making for one specific embodiment of catching device that one kind described in the utility model can optimize anti-sagging reliability With the schematic perspective view under state, the schematic diagram broken section；

Fig. 2 is the partial enlarged view of A portion shown in Fig. 1；

Fig. 3 is the partial enlarged view in the portion B shown in Fig. 1；

Fig. 4 is structural schematic diagram of B portion shown in Fig. 1 when with runner and rack phase separation.

Number in figure is successively are as follows: 1, rack, 2, flipping block, and 3, scotch, 4, triggering block, 5, runner, 51, trunnion, 6, Guide rail, 7, first rotating shaft, the 8, second shaft, 9, cross bar, 10, block, 11, third shaft, the 12, the 4th shaft, 13, support portion, 14, limited block, 15, inclined-plane.

Specific embodiment

Below with reference to embodiment, the utility model is described in further detail, but the structure of the utility model is not only It is limited to following embodiment.

Embodiment 1:

As shown in Figures 1 to 4, a kind of catching device optimizing anti-sagging reliability, including rack 1, are pacified by first rotating shaft 7 Loaded on the runner 5 in rack 1, the runner 5 can be rotated around the axis of first rotating shaft 7, and multiple are provided in the outer rim of runner 5 Ear 51, the trunnion 51 are annularly evenly distributed with distribution relation between each other, further include for realizing the constriction of 5 locking of runner, institute Stating constriction includes flipping block 2, scotch 3 and triggering block 4, and the scotch 3 is both secured on flipping block 2 with triggering block 4；

It further include the 4th shaft 12, the scotch 3 is rotationally connected on flipping block 2 by the 4th shaft 12, and foot Hand cradle falls in driving 5 rotation process of runner, and scotch 3 is when by the thrust applied by catching device upper journal 51, scotch 3 It can be rotated around the 4th shaft 12；

It further include the second shaft 8, the flipping block 2 is connected by the second shaft 8 with rack 1, and flipping block 2 can be around second turn The axis of axis 8 rotates, and the second shaft 8 is in the cooperation position on flipping block 2 between scotch 3 and triggering block 4；

Under constriction and 5 disengaged position of runner, flipping block 2 turns in scotch 3 with caused by 4 the two gravity of triggering block It is shaft with the second shaft 8, to following replying state: triggering block 4 is located in the motion profile of trunnion 51, stop under square effect Block 3 is located at other than the motion profile of trunnion 51；

It falls and is driven in 5 rotation process of runner in scaffold, when triggering block 4 is constrained by any trunnion 51, triggering block 4 Driving flipping block 2 is rotated around the second shaft 8 under the active force of corresponding trunnion 51, and scotch 3 turns to trunnion with flipping block 2 In 51 motion profile；

It further include the support portion 13 being set in rack 1, the support portion 13 is located at the side of scotch 3, in scotch 3 When thrust by trunnion 51, scotch 3 by rotation so that 3 part of scotch is subjected to displacement in the circumferential direction of runner 5, institute It states support portion 13 to be located on the deformation trace, the support portion 13 is used to limit the position of the displacement stop；

The first rotating shaft 7, the second shaft 8,12 three of the 4th shaft axis be parallel to each other；

It further include the limited block 14 being set on flipping block 2, the limited block 14 is for being limited to scotch 3 to trunnion 51 Motion profile in movement when, dead-centre position that scotch 3 rotates around the 4th shaft 12.

Specifically, this programme is when in use, since catching device and guide rail 6 have phase on the length direction along guide rail 6 To movement, in the above relative movement, when 6 cross tube 9 of guide rail interacts with the trunnion 51 on runner 5, cross bar 9 Drive runner 5 with first rotating shaft 7 for shaft rotation, i.e. elevating scaffold decrease speed is faster, and runner 5 is rotated around first rotating shaft 7 It is faster.

In the present solution, flipping block 2 with the second shaft 8 is rotation center on constriction, scotch 3 is equivalent to triggering block 4 To be in not ipsilateral clump weight on described rotation center a pair of opposite side, it is under constraints above portion and 5 disengaged position of runner Runner 5 and constriction are contactless, and flipping block 2 is only in the state of the torque that two sides clump weight gravity generates.In this way, when turning During rotation, when any trunnion 51 streaks 4 position of triggering block, corresponding trunnion 51 promotes to turn over wheel 5 to the application of triggering block 4 Switch block 2 is center of rotation, the power of the side to overturn to where entering 5 rotary motion trace of runner of scotch 3 with the second shaft 8；In corresponding branch After the constraint relationship of ear 51 and triggering block 4 removes, flipping block 2 rotates under the action of the clump weight of two sides around the second shaft 8 with extensive Multiple state.And since the track that trunnion 51 streaks is fixed, in this way, when each trunnion 51 is successively acted on triggering block 4, each triggering block 4 position of the fulcrum that can move to scotch 3 are relatively fixed, and the turnaround time of flipping block 2 is relatively fixed, in this way, next When a trunnion 51 is turned at 3 position of scotch, whether scotch 3 deviate from the motion profile via trunnion 51, determines to stop Can motion block 3 realize the locking to runner 5, and whether scotch 3 is by trunnion when next trunnion 51 turns to 3 position of scotch Abjection is determined by the velocity of rotation of runner 5 in 51 motion profile, the velocity of rotation of the above runner 5 by guide rail 6 decrease speed It determines, in this way, when the revolving speed of runner 5 exceeds certain revolving speed, since scotch 3 has little time to take off in the motion profile by trunnion 51 It has an effect out with trunnion 51, in this way, by the radial direction setting in runner 5 for being to be in contact condition with trunnion 51 Scotch 3 support portion 13 of support is provided, or the power for locking runner 5 is directly transmitted by flipping block 2, the second shaft 8, The locking rotated to runner 5 can be realized, after the above runner 5 is locked, by the trunnion 51 on runner 5, it can be achieved that guide rail 6 The locking of cross tube 9, to reach anti-fall purpose.

In the present solution, by being limited to include support portion 13 in rack 1, while scotch 3 passes through the 4th shaft 12 and turns over Switch block 2 is rotatablely connected, in this way, scotch 3, when by the thrust applied by catching device upper journal 51, scotch 3 can be described It rotates or slides under thrust, put down due to defined above for first rotating shaft 7, the second shaft 8,12 three's axis of the 4th shaft Row, scotch 3 rotate under the action of triggering block 4 around the second shaft 8 with flipping block 2, and scotch 3 is entered by the outside of runner 5 When the rotary motion trace of trunnion 51, scotch 3 rotates under the action of corresponding trunnion 51, due to the movement side of corresponding trunnion 51 To for along the circumferential direction of runner 5, in this way, corresponding trunnion 51 drives the part of scotch 3 to the movement along corresponding trunnion 51 Direction is shaft rotation with the 4th shaft 12, in this way, scotch 3 is subjected to displacement in the circumferential direction of runner 5.By anti-fall Support portion 13 is set in the rack 1 of device, and portion 13 supported above is that scotch 3 has been subjected to displacement about in the circumferential direction of runner 5 Shu Zuoyong, i.e. support portion 13 are used to provide the supporting surface of support scotch 3, in this way, it can be achieved that by scotch 3 directly in runner The power of transmitting locking runner 5 between 5 and rack 1, and the mechanical property of the shaft between flipping block 2 itself, constriction and rack 1 Only it is required that flipping block 2 is in corresponding catching device work, enable the repeatedly reciprocally swinging of flipping block 2, in this way, passing through It is designed as the connection relationship of specific scotch 3 and flipping block 2, it can be by scotch 3 directly between runner 5 and rack 1 Transmission force, to achieve the purpose that optimize corresponding catching device stress, improve corresponding catching device reliability.

As those skilled in the art, actually for scotch 3 runner 5 circumferential direction movement with support portion 13 Interact, actually scotch 3 can along flipping block 2 slide can also realize above-mentioned purpose of utility model, but use with Upper 4th shaft 12 realizes the scheme that scotch 3 is connected with flipping block 2, not only makes constriction structure more simple；Meanwhile by It can be rotated with flipping block 2 around the second shaft 8 in scotch 3 itself, and branch when constraint of each secondary scotch 3 by corresponding trunnion 51 Position and state of the ear 51 in space may be different, if being set as the above relationship that is slidably connected, in this way, can not make Be used on the face that act on support portion 13 and support portion 13 on scotch 3 with scotch 3 thought of as face can not be complete Full fitting, is unfavorable for the stability that support portion 13 supports scotch 3, using this programme, since scotch 3 can be around the 4th in this way Shaft 12 rotates, and flipping block 2 can be rotated around the second shaft 8, in this way, it is ensured that about pencil of the meaning trunnion 51 in office to scotch 3 Under state, when 3 stress of scotch, is rotated by the rotation of flipping block 2, scotch 3, it is most reliable to scotch 3 to obtain support portion 13 Holding state.

The side for being used to contact with trunnion 51 as those skilled in the art, such as scotch 3 is leading portion, in scotch 3 Support portion 13 is arranged in rear end, but needs to consider that support portion 13 cannot directly interact with trunnion 51, specific to be arranged When, it may be configured as support portion 13 and be located on the side or trunnion 51 of trunnion 51 gap having for crossing support portion 13, stop The setting direction or form of block 3 meet scotch 3 when contacting with trunnion 51, scotch 3 as trunnion 51 and support portion 13 it Between force transmission member.

Meanwhile this catching device structure is simple, scaffold maximum speed of falling is controllable；Meanwhile compared to the prior art, such as Shen Please number are as follows: scheme provided by the utility application of CN201020668449.2 directly uses on existing runner 5 this Body is used for the trunnion 51 with 9 phase separation of cross bar as the component with constriction phase separation, in this way, can simplify the knot of catching device itself Structure design simultaneously as not needing to design the structures such as anti-fall card wheel, therefore aloows runner 5 integrally formed or realizes runner 5 The transfer route upper connector or joint face of the power of locking are less, are conducive to the reliability of catching device mechanical property in this way；Meanwhile phase Compared with the prior art, installation of the constriction in rack 1 is using the outside for being installed on 5 radial direction of runner, in this way, convenient Pass through rack 1 to the both ends of first rotating shaft 7 to constrain, to promote the bending resistance of first rotating shaft 7.

Simultaneously as scotch 3 is with flipping block 2 to the side into 51 pivot region of trunnion under the action of triggering block 4 When movement, scotch 3 is under inertia it is possible that fortune of the free end dyskinesia at 12 position of the 4th shaft in space It is dynamic, in that way it is possible to the problem of causing scotch 3 that cannot well enter 51 motion profile of trunnion, in the present solution, by described in setting Limited block 14 is overturn during entering 51 motion profile of trunnion with flipping block 2 with upper limit position block 14 for constraining scotch 3, But constraint scotch 3 is overturn under the effect of trunnion 51 around first rotating shaft 7, in this way, can further improve this catching device can By property.

Embodiment 2:

As shown in Figures 1 to 4, the present embodiment is further qualified on the basis of embodiment 1: as a kind of specific reality Existing form, the scotch 3, flipping block 2 are in tabular, when scotch 3 is moved into the motion profile of trunnion 51, stop The dead-centre position that block 3 rotates around the 4th shaft 12 are as follows: scotch 3 turns to position locating when being mutually perpendicular to flipping block 2 It sets.Using this programme, scotch 3 is aloowed to enter the movement rail of trunnion 51 in 2 switching process of flipping block as far as possible In mark, to realize the locking that rack 1 rotates runner 5 by support portion 13.

At work due to this programme, support portion 13 provides supporting surface, as the specific implementation of support portion 13, The support portion 13 is arranged in the top of first rotating shaft 7, and the support portion 13 is to be arranged in rack 1 and open end is big end Triangular gap, support portion 13 be used for constrain scotch 3 supporting surface be triangular gap on an inclined-plane 15, and along turn Rotation direction of the wheel 5 during scaffold declines when rotation, one end that inclined-plane 15 is in front end is bottom end, after inclined-plane 15 is in The one end at end is top.Using this programme, scotch 3 is entered in notch by the open end of triangular gap, while passing through restriction Inclined-plane 15 where the supporting surface, not only 13 handling ease of support portion, while support portion 13 can be realized to the reliable of scotch 3 Constraint, while inclined-plane 15 has guiding role to the movement of scotch 3, can be used for the active force for avoiding scotch 3 in trunnion 51 Lower and support portion 13 the constraint relationship fails.

It further include third shaft 11, the triggering block 4 is connected by third shaft 11 with flipping block 2, and triggering block 4 can be with Third shaft 11 is shaft rotation；

Further include block 10, when the block 10 is rotated for limiting triggering block 4 around third shaft 11, rotates the position of stop It sets, the rotation stop are as follows: block 10 is that triggering block 4 or third shaft 11 apply constraint and triggering block 4 avoided further to rotate, touching The point that hair block 4 is stopped；

It falls and is driven in 5 rotation process of runner in scaffold, when triggering block 4 is constrained by any trunnion 51, triggering block 4 Under the active force of corresponding trunnion 51 with 10 phase separation of block, and by 10 transmission force of block to drive flipping block 2 around second turn Axis 8 rotates, and scotch 3 is turned to flipping block 2 in the motion profile of trunnion 51, at this point, due to triggering block 4 and flipping block 2 Between by 10 transmission force of block, so when triggering block 4 under the action of trunnion 51, force flipping block 2 to rotate, so that stop Block 3 is fallen into the rotary motion trace of trunnion 51；

Rise in driving 5 rotation process of runner in scaffold, when triggering block 4 is constrained by any trunnion 51, triggering block 4 It is rotated under the active force of corresponding trunnion 51 around third shaft 11, so that corresponding trunnion 51 is mutually staggered with triggering block 4, this When, since triggering block 4 realizes being staggered for triggering block 4 and 51 relative position of trunnion by rotating around third shaft 11, so when touch Hair block 4, which is transmitted not by block 10 on flipping block 2, forces flipping block 2 to rotate, so that scotch 3 and 51 phase separation of trunnion Power.

This programme is preferably arranged to third shaft 11, the 4th shaft 12, first rotating shaft 7, the second shaft 8 four when using Person's axis is parallel.In above procedure between triggering block 4 and flipping block 2 transitive dependency of power in block 10 to triggering block 4 around third The locking that shaft 11 rotates.Since triggering block 4 is needed at work with third shaft 11 for shaft rotation, and in the prior art, When realizing that the rotation of triggering block 4 can be used by the specific implementation that third shaft 11 is rotatably connected in triggering block 4 and flipping block 2 Third shaft 11 itself is not around own axis: if one end of third shaft 11 and flipping block 2 are welded to connect, in triggering block 4 It is provided with for the hole with 11 clearance fit of third shaft；Also it may be configured as: when triggering block 4 is rotated with third shaft 11 for axis Third shaft 11 itself is around own axis: as one end of third shaft 11 is fixedly connected with triggering block 4 or triggering block 4 and Three shafts 11 are an integral structure, and are provided on flipping block 2 for the hole with 11 clearance fit of third shaft.So, block 10 When specific implementation is to 4 rotational restraint of triggering block, if third shaft 11 rotates simultaneously with triggering block 4, block 10 may be configured as It is fixed in rack 1,10 immediate constraint triggering block 4 of block or third shaft 11 when third shaft 11 goes to setting position, makees It can be by being set in the end face of third shaft 11 when using the implementation of constraint third shaft 11 for those skilled in the art It sets with the blocking portion of 10 phase separation of block or blocking portion is set in the side of third shaft 11, the above blocking portion can be for relative to institute End face or side convex block outstanding are stated, i.e. block 10 realizes the timing of 4 rotation lock of triggering block, and convex block contacts with block 10 and avoids convex block Further rotation；Third shaft 11 itself does not constrain third around the block of own axis 10 in 4 rotation process of triggering block The way of realization of shaft 11 directly hinders triggering block 4 to rotate further around third shaft 11 by block 10.

As those skilled in the art, for above scheme when realizing, actually triggering block 4 cannot under the action of block 10 360 ° of rotations are done around third shaft 11, and this programme is after completing the assembly with catching device, need to meet: runner 5 is in foot hand When rotating during frame decline, trunnion 51 can trigger triggering block 4 and directly or indirectly be constrained by block 10；Runner 5 is in scaffold When being rotated in uphill process, in trunnion 51 and during the entire process of 4 phase separation of triggering block, triggering block 4 not directly or indirectly by It is constrained to block 10.

The triggering block 4 set above is connected by third shaft 11 with flipping block 2, while by design block 10, so that For this programme under the premise of meeting scaffold decline lock function, constriction does not influence the rotation of runner 5 during mentioning on scaffold Maximum speed, therefore the catching device of this programme is used not will cause scaffold when scaffold arbitrary speed is promoted and above mention and prevented Fall device locking, conducive to efficiency when improving hoisting scaffold, simultaneously because scaffold is when above being mentioned, each trunnion 51 successively with touching When sending out the effect of block 4, only triggering block 4 is rotated around third shaft 11 on constriction, therefore is issued compared to flipping block 2 in the effect of trunnion 51 The case where raw overturning, this programme may make that bring the resistance that scaffold above mentions by catching device smaller.

Embodiment 3:

As shown in Figures 1 to 4, the present embodiment is further qualified on the basis of embodiment 1: as the specific of constriction Installation and setting form, setting are as follows: second shaft 8 is located at the top of 51 rotary motion trace of trunnion, and flipping block 2 is in a strip shape, only Motion block 3 is located at the different ends of flipping block 2 from triggering block 4.Using this programme, weight is served as using the length of flipping block 2 as far as possible The arm of force of power generation torque.

For convenience of constriction is changed in a free state, i.e., without under 5 restrained condition of runner, scotch 3 is moved by trunnion 51 The time deviate from track, to control the triggering speed that this catching device realizes the rotation of 5 locking runner 5 of runner, setting are as follows: scotch 3 with 4 the two of triggering block, and the connection relationship of at least one and flipping block 2 is to be detachably connected relationship.It can be in this way, adjusting The quality for the clump weight that flipping block 2 is detachably connected, can be realized above-mentioned purpose.

For convenience of constriction is changed in a free state, i.e., without under 5 restrained condition of runner, scotch 3 is moved by trunnion 51 The time deviate from track, to control the triggering speed that this catching device realizes the rotation of 5 locking runner 5 of runner, setting are as follows: described the Two shafts 8 are adjustable on the length direction of flipping block 2 in the link position on flipping block 2, and the length direction is scotch 3 With the line direction of triggering block 4.Using this programme, i.e., by adjusting the means of torque arm length, realize above-mentioned purpose.

As the specific implementation for adjusting torque arm length, multiple hinge holes are provided on the flipping block 2, it is multiple hinged Hole is arranged along the length direction, and the second shaft 8 is fixedly connected with rack 1, and flipping block 2 passes through any hinge hole and second turn Axis 8 is connected.

To avoid because the position change on 8 axis of the second shaft of flipping block 2, which influences the triggering of trunnion 51, touches block or influence Scotch 3 causes the anti-fall performance of this programme unreliable with the interaction of trunnion 51, is arranged are as follows: and it further include limiting device, it is described Limiting device is for limiting position of the flipping block 2 on 8 axis of the second shaft；It is provided with external screw thread in second shaft 8, institute Stating limiting device is two nuts being threadedly connected in the second shaft 8.This limit device structure is simple, easy to manufacture.

As the specific implementation of runner 5, the runner 5 includes shell portion and header portion, the shell portion It is cylindrical in shape, the header portion quantity is two pieces, and shell portion is respectively held and is respectively and fixedly provided with one piece of header portion, and header portion is in Tabular；

N number of ear block is provided in each header portion, and the trunnion 51 in each header portion is annular in shape uniformly distributed between each other；

Trunnion 51 on two end plates part and is in two ear blocks of face relationship along the axis direction face one by one of runner 5 Form a trunnion 51；

Each header portion is bolted with shell portion.Using this programme, each 51 overlay area of trunnion may make not only Can be wider, meanwhile, runner 5 is few with material, light-weight.It it is bolted scheme above provides a kind of connection and be easily achieved, while it can It avoids such as the welding heat affected material mechanical performance of introducing, make each component part detachable to maintain easily and replace, reduce dimension The technical solution of shield or use cost.

The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical In novel protection scope.

Claims (10)

1. one kind can optimize the catching device of anti-sagging reliability, including rack (1), it is installed on rack (1) by first rotating shaft (7) Runner (5), the runner (5) can rotate around the axis of first rotating shaft (7), be provided with multiple trunnions in the outer rim of runner (5) (51), the trunnion (51) is annularly evenly distributed with distribution relation between each other, further includes for realizing the constraint of runner (5) locking Portion, which is characterized in that the constriction includes flipping block (2), scotch (3) and triggering block (4), the scotch (3) and touching Hair block (4) is both secured on flipping block (2)；

It further include the 4th shaft (12), the scotch (3) is rotationally connected on flipping block (2) by the 4th shaft (12), And scaffold falls and drives in runner (5) rotation process, scotch (3) is by the thrust applied by catching device upper journal (51) When, scotch (3) can be rotated around the 4th shaft (12)；

It further include the second shaft (8), the flipping block (2) is connected by the second shaft (8) with rack (1), and flipping block (2) can be around The axis of second shaft (8) rotates, and cooperation position of the second shaft (8) on flipping block (2) is located at scotch (3) and triggering block (4) between；

Under constriction and runner (5) disengaged position, flipping block (2) is produced by the gravity of both scotch (3) and triggering block (4) Torque under, with the second shaft (8) be shaft, be located at the movement rail of trunnion (51) to following replying state: triggering block (4) In mark, scotch (3) is located at other than the motion profile of trunnion (51)；

It falls and is driven in runner (5) rotation process in scaffold, when triggering block (4) is constrained by any trunnion (51), triggering Block (4) driving flipping block (2) under the active force of corresponding trunnion (51) is rotated around the second shaft (8), and scotch (3) is with overturning Block (2) turns in the motion profile of trunnion (51)；

It further include the support portion (13) being set on rack (1), the support portion (13) is located at the side of scotch (3), only When thrust of the motion block (3) by trunnion (51), scotch (3) by rotation so that scotch (3) part runner (5) circumferential direction Direction is subjected to displacement, and the support portion (13) is located on the deformation trace, and the support portion (13) is for limiting the displacement The position of stop；

The first rotating shaft (7), the second shaft (8), the 4th shaft (12) three axis be parallel to each other；

It further include the limited block (14) being set on flipping block (2), the limited block (14) is for being limited to scotch (3) to branch In the motion profile of ear (51) when movement, dead-centre position that scotch (3) rotates around the 4th shaft (12).

2. the catching device that one kind according to claim 1 can optimize anti-sagging reliability, which is characterized in that the scotch (3), flipping block (2) is in tabular, and in the motion profile of scotch (3) Xiang Zhier (51) when movement, scotch (3) is around the The dead-centre position that four shafts (12) rotate are as follows: scotch (3) turns to position locating when being mutually perpendicular to flipping block (2) It sets.

3. the catching device that one kind according to claim 1 can optimize anti-sagging reliability, which is characterized in that the support portion (13) it is arranged in the top of first rotating shaft (7), the support portion (13) is setting on rack (1) and open end is the three of big end Angular notch, support portion (13) are used to constrain the supporting surface of scotch as an inclined-plane (15) in triangular gap, and along Rotation direction of the runner (5) during scaffold declines when rotation, inclined-plane (15) are in one end of front end for bottom end, at inclined-plane In rear end one end be top.

4. the catching device that one kind according to claim 1 can optimize anti-sagging reliability, which is characterized in that further include that third turns Axis (11), the triggering block (4) is connected by third shaft (11) with flipping block (2), and triggering block (4) can be with third shaft (11) it is rotated for shaft；

Further include block (10), when the block (10) rotates for limiting triggering block (4) around third shaft (11), rotates stop Position, the rotation stop are as follows: block (10) is that triggering block (4) or third shaft (11) apply constraint and avoid triggering block (4) Further rotation, the point that triggering block (4) is stopped；

It falls and is driven in runner (5) rotation process in scaffold, when triggering block (4) is constrained by any trunnion (51), triggering Block (4) under the active force of corresponding trunnion (51) with block (10) phase separation, and by block (10) transmission force to drive overturning Block (2) is rotated around the second shaft (8), and scotch (3) turns in the motion profile of trunnion (51) with flipping block (2)；

Rise in driving runner (5) rotation process in scaffold, when triggering block (4) is constrained by any trunnion (51), triggering Block (4) rotates under the active force of corresponding trunnion (51) around third shaft (11), so that corresponding trunnion (51) and triggering block (4) It mutually staggers.

5. the catching device that one kind according to claim 1 can optimize anti-sagging reliability, which is characterized in that second shaft (8) it is located at the top of trunnion (51) rotary motion trace, flipping block (2) is in a strip shape, and scotch (3) and triggering block (4) are located at flipping block (2) different ends.

6. the catching device that one kind according to claim 1 can optimize anti-sagging reliability, which is characterized in that scotch (3) with In triggering block (4) the two, the connection relationship of at least one and flipping block (2) is to be detachably connected relationship.

7. the catching device that one kind according to claim 5 can optimize anti-sagging reliability, which is characterized in that second shaft (8) link position on flipping block (2) is adjustable on the length direction of flipping block (2), and the length direction is scotch (3) with the line direction of triggering block (4).

8. the catching device that one kind according to claim 7 can optimize anti-sagging reliability, which is characterized in that the flipping block (2) multiple hinge holes are provided on, multiple hinge holes are arranged along the length direction, and the second shaft (8) and rack (1) are fixed Connection, flipping block (2) are connected by any hinge hole with the second shaft (8).

9. the catching device that one kind according to claim 8 can optimize anti-sagging reliability, which is characterized in that further include limit dress It sets, the limiting device is for limiting position of the flipping block (2) on the second shaft (8) axis；It is set on second shaft (8) It is equipped with external screw thread, the limiting device is two nuts being threadedly connected on the second shaft (8).

10. the catching device that one kind according to claim 1 can optimize anti-sagging reliability, which is characterized in that the runner (5) Including shell portion and header portion, the shell portion is cylindrical in shape, and the header portion quantity is two pieces, and shell portion is each End is respectively and fixedly provided with one piece of header portion, and header portion is in tabular；

N number of ear block is provided in each header portion, and the trunnion in each header portion is annularly uniformly distributed between each other；

Trunnion on two end plates part and is formed along the axis direction face one by one of runner (5) in two ear blocks of face relationship One trunnion (51)；

Each header portion is bolted with shell portion.