CN109083053A - A kind of moveable temporary guard rail for municipal works - Google Patents

Abstract

The invention belongs to guard bar technique fields, more particularly to a kind of moveable temporary guard rail for municipal works, it includes protective fence, mechanism of car, regulating mechanism, steering mechanism, wherein brake plate is in the presence of with ground after press contacts, there are biggish stiction between brake plate and ground, so that temporary guard rail of the invention will not be pushed easily；Make temporary guard rail of the invention that there is the braking effect of traditional temporary guard rail.In addition, when temporary guard rail of the invention is still pushed by external force after braking, preceding wheel and rear wheel can still roll, only brake plate is being worn, slide caused abrasion condition on the ground in a manner of non-rotary so as to avoid wheel in traditional temporary guard rail, the case where wheel is worn down to non-circular shape is avoided, ensure that wheel can make temporary guard rail smoothly walk.The configuration of the present invention is simple has preferable using effect.

Description

A kind of moveable temporary guard rail for municipal works

Technical field

The invention belongs to guard bar technique field more particularly to a kind of moveable temporary guard rails for municipal works.

Background technique

When municipal administration at present repairs the roads or repairs pipeline, it is often necessary to certain block zone isolation is got up, it is moveable at this time interim Guardrail prevents non-working person from entering it become convenient substantially that the zone isolation is got up.But, in some special circumstances, non- Staff can also be pushed to temporary guard rail, and non-working person pushes temporary guard rail in order to prevent, so traditional is moveable There is arrestment mechanism on the wheel of temporary guard rail.But after the wheel of moveable temporary guard rail is braked, in temporary guard rail After being pushed by larger external force, the wheel on temporary guard rail will be slided on the ground in a manner of non-rotary, so for a long time Go down to easily cause the abrasion of wheel, in turn results in wheel and be worn down to non-circular shape, non-circular state wheel is scrolling through It is easy to cause and jolts instead in journey.The wheel on temporary guard rail is worn down to non-circular shape in order to prevent, so just needing to design A kind of moveable temporary guard rail that wheel on temporary guard rail is not braked.

The present invention design a kind of moveable temporary guard rail for municipal works solve the problems, such as it is as above.

Summary of the invention

To solve drawbacks described above in the prior art, the present invention discloses a kind of moveable interim shield for municipal works Column, it adopts the following technical solutions to realize.

In the description of the present invention, it should be noted that the indicating positions such as term "inner", "lower", "upper" or position are closed System be orientation based on the figure perhaps positional relationship or the invention product using when the orientation or position usually put Set relationship, it is only for convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed or operated with specific orientation, therefore be not considered as limiting the invention.In addition, art Language " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.

A kind of moveable temporary guard rail for municipal works, it is characterised in that: it includes protective fence, pedestal, rear-wheel Son, arrestment mechanism, regulating mechanism, steering mechanism, preceding wheel, the first support plate, rear axle, the first belt pulley, belt, wherein pedestal Upper surface on protective fence is installed；Arrestment mechanism is installed on the lower surface of pedestal；On the lower surface of pedestal one end symmetrically There are two the first support plate, the other ends to be equipped with steering mechanism for installation；Two preceding wheels are mounted in steering mechanism；The side of pedestal Regulating mechanism is installed on face；Rear axle is mounted in the circular hole of two the first support plates by bearing, and the both ends of rear axle are worn Two the first support plates out；It symmetrically installs there are two rear wheel at the both ends of rear axle；First belt pulley is mounted on rear axle, and the One belt pulley is located between two the first support plates；One end of belt is mounted on the first belt pulley, and the other end is mounted on braking In mechanism.

Above-mentioned arrestment mechanism include square type support ring, the second fixed plate, the first fixed plate, square type guide tube, third support plate, Second support plate, one-way clutch, fixation hole, first rotating shaft, the second belt pulley, the first pinion gear, the first telescopic shaft, first are greatly Gear, leaf spring, first gear, connecting plate, second gear, the second telescopic shaft, the second pinion gear, change gear, the second gear wheel, Third gear, the second shaft, adjusting block, brake plate, third rack gear, the first guide block, the first sliding panel, the first spring, first are slided Slot, the first guide groove, second sliding slot, the second guide groove, the second sliding panel, the second guide block, second spring, the first rack gear, the second rack gear, Inclined-plane, wherein the first fixed plate, the second support plate, third support plate, square type guide tube and the second fixed plate are installed in above-mentioned bottom The lower surface middle of seat；Square type guide tube is between the first fixed plate and third support plate；Second support plate is close to above-mentioned One support plate, and the second support plate is between third support plate and the first support plate；Second fixed plate is close to the side of pedestal； The fixation hole of perforation is provided in second support plate；First telescopic shaft is made of the first pivoted housing and the first telescopic inner axis, and first stretches Contracting inner shaft drives the rotation of the first pivoted housing；One-way clutch is installed on the periphery of first rotating shaft；The periphery of one-way clutch It is fixedly mounted in the fixation hole of the second support plate；First gear is installed in first telescopic inner axis；First gear wheel is mounted on On first pivoted housing, and the first gear wheel is between one-way clutch and first gear；First rotating shaft is mounted on by bearing In the circular hole of two support plates, and first rotating shaft is located at the downside of the first telescopic shaft；Second belt pulley and the first pinion gear are respectively mounted In first rotating shaft, and the second belt pulley is between the second support plate and the first pinion gear；First pinion gear and the first canine tooth Wheel is meshed；Second telescopic shaft is made of the second pivoted housing and the second telescopic inner axis, and the second telescopic inner axis drive the rotation of the second pivoted housing Turn；Second pivoted housing is mounted in the circular hole of third support plate by bearing；Second pinion gear and second gear are installed in second In telescopic inner axis, and the second pinion gear is between second gear and the second pivoted housing；Change gear is mounted on third branch by axis On fagging；Second shaft is mounted in the circular hole of third support plate by bearing；Third gear and the second gear wheel are installed in In second shaft, and third gear is between the second gear wheel and third support plate；Change gear be located at the second gear wheel with Between second telescopic inner axis；Change gear is meshed with the second gear wheel；Change gear is matched with the second pinion gear；Connecting plate One end be mounted on the one end of the first telescopic inner axis far from the first pivoted housing, the other end is mounted on the second telescopic inner axis far from second On one end of pivoted housing；Second fixed plate is equipped with square type support ring far from one end of pedestal；Adjusting block passes through the side being slidably matched Formula is mounted in square type support ring, and the both ends of adjusting block are pierced by square type support ring；One end of adjusting block is fixedly mounted on company In plate face of the fishplate bar far from the first telescopic inner axis, the other end has inclined-plane；One end of two leaf springs is mounted on square type support ring On two sides, the other end is mounted on connecting plate；Two leaf springs are distributed in the two sides of adjusting block；Have first to slide in square type guide tube Slot；It symmetrically opens there are two the first guide groove the two sides of first sliding groove；There are two the two sides of first sliding panel one end are symmetrically installed First guide block, the other end are equipped with brake plate；Third rack gear is installed on the side of the first sliding panel；First sliding panel passes through cunning The mode of dynamic cooperation is mounted in the first sliding groove of square type guide tube；One end of first spring is mounted on the first sliding panel, another End is mounted on the bottom surface of first sliding groove, and the first spring is located in the first sliding groove of square type guide tube；Two the first guide blocks pass through cunning The mode of dynamic cooperation is separately mounted in two the first guide grooves；Third rack gear slides in square type guide tube；Third gear and third Rack gear is meshed；First fixed plate is far from the second sliding slot for being provided with perforation in the plate face of pedestal；The two sides of second sliding slot are symmetrically Second guide groove there are two opening；It symmetrically installs there are two the second guide block the two sides of second sliding panel；Second sliding panel passes through sliding The mode of cooperation is mounted in the second sliding slot of the first fixed plate；Two the second guide blocks are installed respectively by way of being slidably matched In two the second guide grooves；One end of two second springs is separately mounted on two the second guide blocks, and the other end is separately mounted to On the groove face of two the second guide grooves；Two second springs are located in two the second guide grooves；On the lower surface of second sliding panel First rack gear and the second rack gear are installed；First rack gear and the second rack gear are distributed along the length direction of the second sliding panel, and first There is spacing between rack gear and the second rack gear；First gear is matched with the first rack gear；Second gear is matched with the second rack gear.

One end of above-mentioned belt is mounted on the first belt pulley, and the other end is mounted on the second belt pulley.

Above-mentioned steering mechanism has the function of that wheel turns to before adjusting；Regulating mechanism makes adjusting block in square type support ring Sliding achievees the purpose that adjusting block generates displacement.

Above-mentioned steering mechanism also have the function of control to adjust mechanism action so that regulating mechanism movement after to adjusting block into Line position transposition section.

As the further improvement of this technology, above-mentioned regulating mechanism includes trigger board, slider bar, third fixed plate, third Guide block, third spring, third guide groove, third sliding slot, inclined-plane, wherein third fixed plate is mounted on the side of pedestal；Third is solid The third sliding slot of perforation is provided in fixed board；It symmetrically opens there are two third guide groove the two sides of third sliding slot；The two sides pair of slider bar Claiming ground installation, there are two third guide blocks；Slider bar is mounted in the third sliding slot of third fixed plate by way of being slidably matched； Two third guide blocks are separately mounted in two third guide grooves by way of being slidably matched；One end difference of two third springs It is mounted on two third guide blocks, the other end is separately mounted on the groove face of two third guide grooves；Two third springs distinguish position In two third guide grooves；One end of slider bar has inclined-plane, and the other end is equipped with trigger board；Trigger board and above-mentioned adjusting block Inclined-plane matches；The inclined-plane of slider bar is matched with above-mentioned steering mechanism.

As the further improvement of this technology, above-mentioned steering mechanism includes movable plate, press strip, handle, adjusting rod, the 4th solid Fixed board, the 5th fixed plate, the second telescopic rod, fixed block, the 6th fixed plate, the first telescopic rod, switch block, front axle, the ring disk, the 7th consolidate Fixed board, limit plate, c-type elastic piece, wherein the 4th fixed plate is mounted on above-mentioned pedestal far from one end upper surface of rear wheel；The Six fixed plates are mounted on above-mentioned pedestal far from one end lower surface of rear wheel by fixed block；Two the 7th fixed plates are symmetrically Be mounted in the 4th fixed plate, and two the 7th fixed plates be located at the 4th fixed plate far from one end of pedestal at；5th fixed plate It is mounted on the middle position of the 4th fixed plate；The mounting surface of 5th fixed plate is for the same side with the mounting surface of the 7th fixed plate； One end of two the second telescopic rods is mounted on the lower surface of the 5th fixed plate, and the other end is equipped with movable plate；Two second are stretched Contracting bar is symmetrically dispersed on movable plate；The middle position of movable plate is provided with the circular hole of perforation, and the circular hole is located at two second Between telescopic rod；One end of press strip is mounted on the side of movable plate；First telescopic rod is made of flexible housing and flexible interior bar, And flexible interior bar drives flexible housing rotation；Flexible housing is mounted in the circular hole of the 6th fixed plate by bearing, and flexible outer The both ends of set are pierced by the 6th fixed plate；Flexible interior bar is mounted in the circular hole of movable plate by bearing, and flexible interior bar passes through Movable plate；Flexible housing is fixedly installed with switch block far from one end of flexible interior bar；The two sides of switch block are symmetrically installed by two front axles； One end of adjusting rod is equipped with handle, and the other end passes through the 5th fixed plate and is mutually fixedly connected with one end of flexible interior bar；The ring disk It is fixedly mounted on adjusting rod, and the ring disk is between handle and the 5th fixed plate；Two c-type elastic pieces divide in a symmetrical manner It is not mounted in two the 7th fixed plates；Two limit plates are separately mounted in a symmetrical manner in two the 7th fixed plates；Two A c-type elastic piece is located between two the 7th fixed plates；Two limit plates are located between two the 7th fixed plates；Limit plate is located at The downside of c-type elastic piece；The ring disk is matched with two c-type elastic pieces；The ring disk is matched with two limit plates.

As the further improvement of this technology, two above-mentioned preceding wheels are separately mounted on above-mentioned two front axle；Above-mentioned pressure Item is matched with the inclined-plane on slider bar.

It is above-mentioned first rack gear, the second rack gear, first gear, second gear, second small as the further improvement of this technology Teeth on gear and change gear are all the same, for the teeth of first gear: the teeth of first gear not only have conventional tooth The shape of tooth, and the teeth both ends of first gear all have wedge angle.The design of teeth shape is: for first gear Axially move come when engaging again with the first rack gear, wedge angle can make the tooth in first gear in teeth of the present invention Tooth is smoothly inserted into the gap between two neighboring teeth on the first rack gear, generates first gear smoothly with first gear Engagement, avoids the case where teeth in first gear can not be inserted into the gap on the first rack gear between two neighboring teeth, And then avoid the case where can not engaging with the first rack gear when first gear moves axially.The design of same teeth can also make Second gear can smoothly engage when moving axially with the second rack gear.The design of same teeth also can make the second pinion gear in axis To it is mobile when can smoothly be engaged with change gear.

As the further improvement of this technology, the diameter of the diameter of above-mentioned first pinion gear less than the first gear wheel.In this way Design be: the first pinion gear through the first gear wheel drive the first telescopic shaft rotation, the first telescopic shaft drive first gear When rotation, the torque that the first pinion gear passes to first gear increases, and the rotation speed of first gear is lower than the first pinion gear Rotation speed, and then first gear is made to achieve the effect that deceleration torque increase.

As the further improvement of this technology, the diameter of the diameter of above-mentioned change gear less than the second gear wheel；Second is small Diameter of the diameter of gear less than the second gear wheel.Such design is: driving second in the redirected gear of the second pinion gear Gear wheel rotation, when the second gear wheel drives third gear to rotate through the second shaft, the second pinion gear passes to third gear Torque increases, and the rotation speed of third gear is lower than the rotation speed of the second pinion gear, and then so that third gear is reached deceleration and increase The effect of torsion.

As the further improvement of this technology, rubber handle set is installed on above-mentioned handle, and rubber handle puts on and has Anti-skid structure.

As the further improvement of this technology, above-mentioned c-type elastic piece is made of metal material.

As the further improvement of this technology, above-mentioned first spring is extension spring；Second spring is extension spring；Third Spring is compressed spring.

The design of rear wheel, rear axle, the first belt pulley, belt and the second belt pulley is: when after wheel move forward When dynamic, rear wheel rotates counterclockwise at this time；Wheel drives the rotation of the first belt pulley through rear axle afterwards, and the first belt pulley drives through belt Second belt pulley rotates counterclockwise.

For arrestment mechanism: the second belt pulley drives the first pinion gear to rotate through first rotating shaft, and the first pinion gear is through first Gear wheel drives the rotation of the first telescopic shaft, and the first telescopic shaft drives first gear rotation.The design of one-way clutch is, When the first pinion gear rotates counterclockwise, the first gear wheel drives the first telescopic shaft to rotate clockwise, in the list of one-way clutch To under effect, one-way clutch allows the first telescopic shaft to rotate clockwise, and one-way clutch limits the first telescopic shaft and revolves counterclockwise Turn.It is rotated counterclockwise since one-way clutch limits the first telescopic shaft, then the first pinion gear, first rotating shaft and the second belt pulley It can not rotate clockwise, so that the first belt pulley, rear axle and rear wheel can not rotate clockwise, that is, rear wheel will Walking can not be retreated.When change gear drives the rotation of third gear through the second gear wheel, the second shaft, third gear drives third Rack gear is mobile, and the first sliding panel of third rack drives slides in square type guide tube.Design for the first guide block, the first guide block with It is slided with the first sliding panel, the first guide block can guarantee the first sliding panel Stable sliding in square type guide tube, and the first guide block can also The first sliding panel is prevented to be detached from from square type guide tube.Design for the second guide block, the second guide block follow the second sliding panel to slide, Second guide block can guarantee the second sliding panel Stable sliding in second sliding slot, and the second guide block can also prevent the second sliding panel from It is fallen in one fixed plate.Design between first rack gear and the second rack gear with spacing is: first gear can only drive first Rack gear is mobile, and without driving the second rack gear mobile, the first rack gear will not drive second gear to rotate, and the second rack gear can drive the The rotation of two gears.Square type support ring can guarantee adjusting block after being extruded, and adjusting block can be slided in square type support ring steadily It is dynamic.

Change gear is matched with the second pinion gear, and first gear is matched with the first rack gear, second gear and the second tooth The effect that item matches is: first, when adjusting block is not affected by extruding, first gear and the first rack gear are in meshing state, Second gear and the second pinion gear are located at the two sides of the second rack gear, and second gear and the second pinion gear are not produced with the second rack gear Raw meshing relation.Second, after adjusting block is squeezed, adjusting block drives connecting plate mobile to the direction of the first telescopic shaft, the One telescopic inner axis and the second telescopic inner axis are compressed, and leaf spring is compressed, and the first gear in the first telescopic inner axis is detached from and first Rack gear engagement, the second gear and second during first gear disengaging is engaged with the first rack gear, in the second telescopic inner axis Rack gear engages, and the second pinion gear in the second telescopic inner axis is engaged with change gear.Third, when first gear and the first rack gear are complete After total detachment engagement, second gear is engaged with the second rack gear completely, and the second pinion gear is engaged with change gear completely.4th, when After adjusting block is no longer influenced by extruding, under the reset response of leaf spring, connecting plate drives adjusting block is mobile to reset, and connecting plate drives the One telescopic inner axis and the second telescopic inner axis are resetted to the direction of adjusting block is mobile, the second gear in the second telescopic inner axis be detached from The engagement of second rack gear, the disengaging of the second pinion gear are engaged with change gear；It is engaged in second gear disengaging with the second rack gear In the process, the first gear in the first telescopic inner axis is engaged with the first rack gear.5th, when second gear takes off with the second rack gear completely After engagement, the second pinion gear is disengaged from change gear completely, and first gear and the first rack gear are at a fully engaged.

For regulating mechanism: the design for third guide block, third guide block follow slider bar to slide, and third guide block can guarantee Slider bar Stable sliding in third sliding slot.

Trigger board is matched with the inclined-plane of above-mentioned adjusting block, the effect that press strip is matched with the inclined-plane on slider bar: first, When the inclined-plane on slider bar is not affected by extruding, third spring is uncompressed, the inclined-plane of the non-squeeze adjustments block of trigger board.Second, After press strip squeezes the inclined-plane on slider bar, slider bar is mobile to the direction of trigger board, and third guide block follows slider bar mobile, the Three springs are compressed, the inclined-plane of trigger board squeeze adjustments block.Third, after press strip no longer squeezes the inclined-plane on slider bar, Under the reset response of three springs, third guide block drives slider bar is mobile to reset, the inclined-plane of trigger board no longer squeeze adjustments block.

For steering mechanism: by swing handle, hand channel adjusting rod being driven flexible interior bar rotation, interior bar of stretching is through flexible Housing drives switch block rotation, and then switch block drives preceding wheel to rotate through front axle.Since flexible interior bar is mounted on movement by bearing In the circular hole of plate, and movable plate is fixed by two the second telescopic rods, so movable plate will not revolve in the rotation of flexible interior bar Turn；In the axial movement of flexible interior bar, movable plate can and then flexible interior bar movement.The ring disk is matched with two c-type elastic pieces, ring The effect that disk is matched with two limit plates: first, when the ring disk is located at the upper end of c-type elastic piece, at the ring disk and c-type elastic piece It is engaged in pushing, the position where the movable plate to stretch in interior bar at this time, so that the press strip on movable plate will not squeeze cunning The inclined-plane of dynamic item；Second, when adjusting rod moves down under large force, the ring disk squeeze c-type elastic piece, c-type elastic piece by Crossfade into flat, the ring disk can be easier to cross c-type elastic piece, and the ring disk can be located at the lower end of c-type elastic piece；Third, in the ring disk After c-type elastic piece can be crossed and be located at the lower end of c-type elastic piece, c-type elastic piece resets, and the ring disk is limited plate and is blocked, in this way The ring disk will be unable to be pressed down and maintain to be limited the position that plate is blocked；4th, when the ring disk needs to be returned to c-type elastic piece When upper end, the ring disk needs cross c-type elastic piece under large force.

The lower surface of brake plate of the invention has the rubbing surface of big coefficient of friction, after guaranteeing brake plate and ground face contact Big stiction can be generated, so that temporary guard rail of the invention will not be pushed easily.

Temporary guard rail of the invention the utility model has the advantages that

1, temporary guard rail of the invention can achieve the effect that traditional temporary guard rail braking, prevent temporary guard rail from being pushed easily.This When the temporary guard rail of invention is still pushed after braking, behaviour's brake plate only can be seriously ground without wheel is seriously worn；Relatively The replacement cost of the cost to be replaced after being seriously worn of wheel in traditional temporary guard rail, brake plate is taken turns well below replacement The cost of son has reached the cost for saving temporary guard rail replacement brake component.

2, when temporary guard rail of the invention is still pushed by external force after braking, preceding wheel and rear wheel can still be rolled, Only brake plate is being worn, and is slided on the ground in a manner of non-rotary so as to avoid traditional temporary guard rail braking rear-wheel Caused abrasion condition, reaches the case where avoiding wheel from being worn down to non-circular shape, ensure that wheel can make temporary guard rail flat Steady walking.

3, energy is pushed required for the braking of temporary guard rail of the invention is that the second bullet is stored in when rear-wheel sub-line is walked Inside spring, do not need specially to be supplied to the biggish lower pressure of brake plate；Needed when relative to traditional temporary guard rail braking compared with Big extraneous lower pressure, braking of the invention are convenient and efficient and laborsaving.

4, when temporary guard rail of the invention needs to brake, it is only necessary to push handle, and handle is also able to achieve steering Function, so that handle has the function of two.For the user, when being braked to temporary guard rail, handle is pushed in passing and just can Reach braking effect, to achieve the effect that a key is braked, substantially increases the convenience that temporary guard rail uses.

Detailed description of the invention

Fig. 1 is temporary guard rail overall schematic.

Fig. 2 is the 4th fixed plate and protective fence scheme of installation.

Fig. 3 is the lower surface institute mounting structure schematic diagram of pedestal.

Fig. 4 is arrestment mechanism and belt connection schematic diagram.

Fig. 5 is the first belt pulley scheme of installation.

Fig. 6 is one-way clutch and the second belt pulley scheme of installation.

Fig. 7 is belt scheme of installation.

Fig. 8 is that connecting plate is connected with the first telescopic inner axis and the second telescopic inner axis schematic diagram respectively.

Fig. 9 is the first pinion gear and the first gear wheel is meshed schematic diagram.

Figure 10 is third gear and third rack gear is meshed schematic diagram.

Figure 11 is square type guide tube diagrammatic cross-section.

Figure 12 is the schematic section elevation that the first sliding panel is installed on square type guide tube.

Figure 13 is the first fixed plate diagrammatic cross-section.

Figure 14 is the first rack gear and the second rack gear scheme of installation.

Figure 15 is second spring and the second guide block installation diagrammatic cross-section.

Figure 16 is that first gear is matched with the first rack gear, and second gear matches schematic diagram with the second rack gear.

Figure 17 is the elevational schematic view of Figure 16.

Figure 18 is leaf spring scheme of installation.

Figure 19 is the schematic diagram of the three-dimensional figure (a) of teeth He the top view (b) of teeth.

Figure 20 is the diagrammatic cross-section of third guide block and the installation of third spring.

Figure 21 is third fixed plate diagrammatic cross-section.

Figure 22 is trigger board scheme of installation.

Figure 23 is the cooperation of press strip and slider bar and the cooperation schematic diagram of trigger board and adjusting block.

Figure 24 is steering mechanism's schematic diagram.

Figure 25 is rear wheel scheme of installation.

Figure 26 is adjusting rod scheme of installation.

Figure 27 is the schematic diagram that the ring disk is matched with c-type elastic piece.

Figure label title: 1, protective fence；2, pedestal；3, rear wheel；4, arrestment mechanism；5, regulating mechanism；6, turning machine Structure；7, preceding wheel；8, the first support plate；9, rear axle；10, the first belt pulley；12, belt；15, square type support ring；16, second is solid Fixed board；17, the first fixed plate；18, square type guide tube；19, third support plate；20, the second support plate；21, one-way clutch；22, Fixation hole；23, first rotating shaft；24, the second belt pulley；25, the first pinion gear；26, the first telescopic shaft；27, the first pivoted housing；28, First telescopic inner axis；29, the first gear wheel；30, first gear；31, connecting plate；32, second gear；33, the second telescopic shaft； 34, the second pivoted housing；35, the second telescopic inner axis；36, the second pinion gear；37, change gear；38, the second gear wheel；39, third tooth Wheel；40, the second shaft；41, adjusting block；42, brake plate；43, third rack gear；44, the first guide block；45, the first sliding panel；46, First spring；47, first sliding groove；48, the first guide groove；49, second sliding slot；50, the second guide groove；51, the second sliding panel；52, Two guide blocks；53, second spring；54, the first rack gear；55, the second rack gear；56, inclined-plane；57, leaf spring；59, teeth；60, wedge angle； 61, trigger board；62, slider bar；63, third fixed plate；64, third guide block；65, third spring；66, third guide groove；67, third Sliding slot；70, movable plate；71, press strip；72, handle；73, adjusting rod；74, the 4th fixed plate；75, the 5th fixed plate；76, second Telescopic rod；77, fixed block；78, the 6th fixed plate；79, the first telescopic rod；80, switch block；81, front axle；82, stretch housing；83, Flexible interior bar；84, the ring disk；85, the 7th fixed plate；86, limit plate；87, c-type elastic piece.

Specific embodiment

As shown in Fig. 1,3,5, it includes protective fence 1, pedestal 2, rear wheel 3, arrestment mechanism 4, regulating mechanism 5, turning machine Structure 6, preceding wheel 7, the first support plate 8, rear axle 9, the first belt pulley 10, belt 12, as shown in Figure 1, 2, the wherein upper table of pedestal 2 Protective fence 1 is installed on face；Arrestment mechanism 4 is installed on the lower surface of pedestal 2；As shown in figure 3, the lower surface of 2 one end of pedestal On symmetrically installation is there are two the first support plate 8, as shown in Figure 1, the other end is equipped with steering mechanism 6；Two preceding wheels 7 are installed In steering mechanism 6；As shown in Figure 1, being equipped with regulating mechanism 5 on the side of pedestal 2；As shown in Figure 4,5, rear axle 9 passes through axis It holds and is mounted in the circular hole of two the first support plates 8, and the both ends of rear axle 9 are pierced by two the first support plates 8；The two of rear axle 9 Symmetrically there are two rear wheels 3 for installation at end；First belt pulley 10 is mounted on rear axle 9, and the first belt pulley 10 is located at two the Between one support plate 8；One end of belt 12 is mounted on the first belt pulley 10, and the other end is mounted on arrestment mechanism 4.

As shown in Fig. 4,6,8,16, above-mentioned arrestment mechanism 4 is fixed including square type support ring 15, the second fixed plate 16, first Plate 17, square type guide tube 18, third support plate 19, the second support plate 20, one-way clutch 21, fixation hole 22, first rotating shaft 23, Two belt pulleys 24, the first pinion gear 25, the first telescopic shaft 26, the first gear wheel 29, leaf spring 57, first gear 30, connecting plate 31, Second gear 32, the second telescopic shaft 33, the second pinion gear 36, change gear 37, the second gear wheel 38, third gear 39, second Shaft 40, adjusting block 41, brake plate 42, third rack gear 43, the first guide block 44, the first sliding panel 45, the first spring 46, first are sliding Slot 47, the first guide groove 48, second sliding slot 49, the second guide groove 50, the second sliding panel 51, the second guide block 52, second spring 53, first Rack gear 54, the second rack gear 55, inclined-plane 56, as shown in figure 3, wherein the first fixed plate 17, the second support plate 20, third support plate 19, square type guide tube 18 and the second fixed plate 16 are installed in the lower surface middle of above-mentioned pedestal 2；Square type guide tube 18 is located at first Between fixed plate 17 and third support plate 19；Second support plate 20 is close to above-mentioned first support plate 8, and the second support plate 20 is located at Between third support plate 19 and the first support plate 8；Second fixed plate 16 is close to the side of pedestal 2；It is provided in second support plate 20 The fixation hole 22 of perforation；As shown in Fig. 8,16, the first telescopic shaft 26 is made of the first pivoted housing 27 and the first telescopic inner axis 28, and the One telescopic inner axis 28 drive the rotation of the first pivoted housing 27；As shown in Figure 8,9, one-way clutch is installed on the periphery of first rotating shaft 23 Device 21；As shown in fig. 6, the periphery of one-way clutch 21 is fixedly mounted in the fixation hole 22 of the second support plate 20；Such as Fig. 7,9 It is shown, first gear 30 is installed in the first telescopic inner axis 28；First gear wheel 29 is mounted on the first pivoted housing 27, and first is big Gear 29 is between one-way clutch 21 and first gear 30；As shown in fig. 6, first rotating shaft 23 is mounted on second by bearing In the circular hole of support plate 20, and first rotating shaft 23 is located at the downside of the first telescopic shaft 26；Second belt pulley 24 and the first pinion gear 25 are installed in first rotating shaft 23, and the second belt pulley 24 is between the second support plate 20 and the first pinion gear 25；Such as Fig. 9 Shown, the first pinion gear 25 and the first gear wheel 29 are meshed；As shown in Fig. 8,16, the second telescopic shaft 33 is by 34 He of the second pivoted housing Second telescopic inner axis 35 are constituted, and the second telescopic inner axis 35 drive the rotation of the second pivoted housing 34；As shown in figure 8, the second pivoted housing 34 is logical Bearing is crossed to be mounted in the circular hole of third support plate 19；Second pinion gear 36 and second gear 32 are installed in the second telescopic inner axis On 35, and the second pinion gear 36 is located between second gear 32 and the second pivoted housing 34；Change gear 37 is mounted on third by axis In support plate 19；Second shaft 40 is mounted in the circular hole of third support plate 19 by bearing；Third gear 39 and the second canine tooth Wheel 38 is installed in the second shaft 40, and third gear 39 is between the second gear wheel 38 and third support plate 19；Deflecting Gear 37 is between the second gear wheel 38 and the second telescopic inner axis 35；Change gear 37 is meshed with the second gear wheel 38；Become It is matched to gear 37 with the second pinion gear 36；As shown in figure 8, to be mounted on the first telescopic inner axis 28 separate for one end of connecting plate 31 On one end of first pivoted housing 27, the other end is mounted on the one end of the second telescopic inner axis 35 far from the second pivoted housing 34；Such as Fig. 3,9 institutes Show, the second fixed plate 16 is equipped with square type support ring 15 far from one end of pedestal 2；As shown in Fig. 9,18, adjusting block 41 passes through cunning The mode of dynamic cooperation is mounted in square type support ring 15, and the both ends of adjusting block 41 are pierced by square type support ring 15；Adjusting block 41 One end be fixedly mounted in plate face of the connecting plate 31 far from the first telescopic inner axis 28, the other end have inclined-plane 56；Two leaf springs 57 one end is mounted on the two sides of square type support ring 15, and the other end is mounted on connecting plate 31；Two leaf springs 57 are distributed in The two sides of adjusting block 41；As shown in figure 11, there is first sliding groove 47 in square type guide tube 18；It symmetrically opens the two sides of first sliding groove 47 There are two the first guide grooves 48；As shown in Figure 10, the two sides of 45 one end of the first sliding panel are symmetrically installed there are two the first guide block 44, The other end is equipped with brake plate 42；Third rack gear 43 is installed on the side of first sliding panel 45；As shown in Figure 10,11,12, the One sliding panel 45 is mounted in the first sliding groove 47 of square type guide tube 18 by way of being slidably matched；Pacify one end of first spring 46 On the first sliding panel 45, the other end is mounted on the bottom surface of first sliding groove 47, and the first spring 46 is located at square type guide tube 18 In first sliding groove 47；Two the first guide blocks 44 are separately mounted in two the first guide grooves 48 by way of being slidably matched；Third Rack gear 43 slides in square type guide tube 18；Third gear 39 is meshed with third rack gear 43；As shown in figure 13, the first fixed plate 17 The second sliding slot 49 of perforation is provided in plate face far from pedestal 2；It symmetrically opens there are two the second guide groove the two sides of second sliding slot 49 50；As shown in figure 14, the two sides of the second sliding panel 51 are symmetrically installed there are two the second guide block 52；As shown in Figure 13,14,15, Second sliding panel 51 is mounted in the second sliding slot 49 of the first fixed plate 17 by way of being slidably matched；Two the second guide blocks 52 It is separately mounted to by way of being slidably matched in two the second guide grooves 50；One end of two second springs 53 is separately mounted to two On a second guide block 52, the other end is separately mounted on the groove face of two the second guide grooves 50；Two second springs 53 are located at In two the second guide grooves 50；As shown in Figure 14,16, the first rack gear 54 and the second tooth are installed on the lower surface of the second sliding panel 51 Item 55；First rack gear 54 and the second rack gear 55 are distributed along the length direction of the second sliding panel 51, as shown in Figure 16,17, and first There is spacing between rack gear 54 and the second rack gear 55；First gear 30 is matched with the first rack gear 54；Second gear 32 and second Rack gear 55 matches.

As shown in fig. 7, one end of above-mentioned belt 12 is mounted on the first belt pulley 10, the other end is mounted on the second belt pulley On 24.

Above-mentioned steering mechanism 6 has the function of that wheel 7 turns to before adjusting；Regulating mechanism 5 makes adjusting block 41 in square type branch It is slided in pushing out ring 15, achievees the purpose that adjusting block 41 generates displacement.

Above-mentioned steering mechanism 6 also has the function of that controlling to adjust mechanism 5 acts, so as to adjusting after the movement of regulating mechanism 5 Block 41 carries out displacement adjusting.

As shown in Figure 20,23, above-mentioned regulating mechanism 5 is led including trigger board 61, slider bar 62, third fixed plate 63, third Block 64, third spring 65, third guide groove 66, third sliding slot 67, inclined-plane 56, as shown in Figure 2,3, wherein third fixed plate 63 is installed On the side of pedestal 2；As shown in figure 21, the third sliding slot 67 of perforation is provided in third fixed plate 63；The two of third sliding slot 67 It symmetrically opens there are two third guide groove 66 side；As shown in figure 22, the two sides of slider bar 62 are symmetrically installed there are two third guide block 64；As shown in Figure 20,21,22, slider bar 62 is mounted on the third sliding slot 67 of third fixed plate 63 by way of being slidably matched In；Two third guide blocks 64 are separately mounted in two third guide grooves 66 by way of being slidably matched；Two third springs 65 One end be separately mounted on two third guide blocks 64, the other end is separately mounted on the groove face of two third guide grooves 66；Two Third spring 65 is located in two third guide grooves 66；As shown in figure 22, one end of slider bar 62 has inclined-plane 56, the other end Trigger board 61 is installed；Trigger board 61 is matched with the inclined-plane 56 of above-mentioned adjusting block 41；The inclined-plane 56 of slider bar 62 with above-mentioned turn It is matched to mechanism 6.

As shown in Fig. 1,24, above-mentioned steering mechanism 6 is solid including movable plate 70, press strip 71, handle 72, adjusting rod the 73, the 4th It is fixed board 74, the 5th fixed plate 75, the second telescopic rod 76, fixed block 77, the 6th fixed plate 78, the first telescopic rod 79, switch block 80, preceding Axis 81, the ring disk 84, the 7th fixed plate 85, limit plate 86, c-type elastic piece 87, as shown in Fig. 2, wherein the 4th fixed plate 74 is installed On one end upper surface of the above-mentioned pedestal 2 far from rear wheel 3；As shown in Figure 2,3, the 6th fixed plate 78 is installed by fixed block 77 On one end lower surface of the above-mentioned pedestal 2 far from rear wheel 3；As shown in Figure 24,27, two the 7th fixed plates 85 are symmetrically installed In the 4th fixed plate 74, and two the 7th fixed plates 85 are located at the 4th one end of fixed plate 74 far from pedestal 2；Such as Figure 24 institute Show, the 5th fixed plate 75 is mounted on the middle position of the 4th fixed plate 74；The mounting surface of 5th fixed plate 75 and the 7th is fixed The mounting surface of plate 85 is for the same side；As shown in Figure 24,26, one end of two the second telescopic rods 76 is mounted on the 5th fixed plate 75 On lower surface, the other end is equipped with movable plate 70；Two the second telescopic rods 76 are symmetrically dispersed on movable plate 70；Movable plate 70 Middle position be provided with the circular hole of perforation, and the circular hole is located between two the second telescopic rods 76；As shown in Figure 23,26, press strip 71 one end is mounted on the side of movable plate 70；As shown in figure 25, the first telescopic rod 79 is by flexible housing 82 and flexible interior bar 83 are constituted, and flexible interior bar 83 drives flexible housing 82 to rotate；Flexible housing 82 is mounted on the 6th fixed plate 78 by bearing In circular hole, and the both ends of flexible housing 82 are pierced by the 6th fixed plate 78；As shown in figure 26, interior bar 83 of stretching is installed by bearing In the circular hole of movable plate 70, and flexible interior bar 83 passes through movable plate 70；As shown in figure 25, housing 82 is stretched far from flexible interior bar 83 one end is fixedly installed with switch block 80；The two sides of switch block 80 are symmetrically installed by two front axles 81；As shown in figure 24, adjusting rod 73 One end handle 72 is installed, the other end passes through the 5th fixed plate 75 and is mutually fixedly connected with one end of flexible interior bar 83；Such as figure 24, shown in 27, the ring disk 84 is fixedly mounted on adjusting rod 73, and the ring disk 84 is between handle 72 and the 5th fixed plate 75；Such as Shown in Figure 27, two c-type elastic pieces 87 are separately mounted in a symmetrical manner in two the 7th fixed plates 85；Two limit plates 86 It is separately mounted in two the 7th fixed plates 85 in a symmetrical manner；Two c-type elastic pieces 87 are located at two the 7th fixed plates 85 Between；Two limit plates 86 are located between two the 7th fixed plates 85；Limit plate 86 is located at the downside of c-type elastic piece 87；The ring disk 84 match with two c-type elastic pieces 87；The ring disk 84 is matched with two limit plates 86.

As shown in figure 25, two above-mentioned preceding wheels 7 are separately mounted on above-mentioned two front axle 81；As shown in figure 23, above-mentioned Press strip 71 is matched with the inclined-plane 56 on slider bar 62.

Above-mentioned first rack gear 54, the second rack gear 55, first gear 30, second gear 32, the second pinion gear 36 and deflecting tooth Teeth 59 on wheel 37 are all the same, are as shown in Figure 19 (b) tooth if (a) in Figure 19 show the three-dimensional figure of teeth 59 The top view of tooth 59, for the teeth 59 of first gear 30: the teeth 59 of first gear 30 not only have the shape of traditional teeth 59 Shape, and 59 both ends of teeth of first gear 30 all have wedge angle 60.The design of 59 shape of teeth is: for the first tooth Wheel 30 axially moves come when engaging again with the first rack gear 54, wedge angle 60 can make first in teeth 59 of the present invention Teeth 59 on gear 30 are smoothly inserted into the gap between two neighboring teeth 59 on the first rack gear 54, make first gear 30 engage with smooth generate of first gear 30, and phase on the first rack gear 54 can not be inserted by avoiding the teeth 59 in first gear 30 The case where gap between adjacent two teeth 59, and then avoiding can not be with the first rack gear 54 when first gear 30 moves axially The case where engagement.The design of same teeth 59 can also enable second gear 32 smoothly to nibble when moving axially with the second rack gear 55 It closes.The design of same teeth 59 can also enable the second pinion gear 36 smoothly to engage when moving axially with change gear 37.

As shown in figure 8, diameter of the diameter of above-mentioned first pinion gear 25 less than the first gear wheel 29.Such design exists In: the rotation of the first telescopic shaft 26 is driven through the first gear wheel 29 in the first pinion gear 25, the first telescopic shaft 26 drives first gear When 30 rotation, the torque that the first pinion gear 25 passes to first gear 30 increases, and the rotation speed of first gear 30 is lower than first The rotation speed of pinion gear 25, and then first gear 30 is made to achieve the effect that deceleration torque increase.

As shown in figure 8, diameter of the diameter of above-mentioned change gear 37 less than the second gear wheel 38；Second pinion gear 36 it is straight Diameter of the diameter less than the second gear wheel 38.Such design is: driving in the redirected gear 37 of the second pinion gear 36 second largest Gear 38 rotates, and when the second gear wheel 38 drives third gear 39 to rotate through the second shaft 40, the second pinion gear 36 passes to the The torque of three gears 39 increases, and the rotation speed of third gear 39 is lower than the rotation speed of the second pinion gear 36, and then makes third Gear 39 achievees the effect that deceleration torque increase.

72 sets of rubber handle are equipped on above-mentioned handle 72, and rubber handle 72 is put on anti-skid structure.

Above-mentioned c-type elastic piece 87 is made of metal material.

Above-mentioned first spring 46 is extension spring；Second spring 53 is extension spring；Third spring 65 is compressed spring.

Workflow of the invention: the default setting of temporary guard rail of the invention are as follows: the inclined-plane 56 of adjusting block 41 is not affected by It squeezes, in the raw, as shown in Figure 16,17, first gear 30 and the first rack gear 54 are far from the second rack gear 55 for leaf spring 57 One end is meshed, and second gear 32 and the second pinion gear 36 are located at the two sides of the second rack gear 55, second gear 32 and the second small tooth Wheel 36 does not generate meshing relation with the second rack gear 55.Second spring 53 is in the raw.As shown in Figure 10, third gear 39 engage with third rack gear 43, and there are distances between brake plate 42 and ground.Third spring 65 in the raw, such as Figure 23 institute Show, the inclined-plane 56 on slider bar 62 is not affected by extruding.As shown in figure 27, when the ring disk 84 is located at the upper end of c-type elastic piece 87, the ring disk 84, which are in pushing with c-type elastic piece 87, is engaged, the position where the movable plate 70 to be stretched in interior bar 83 at this time, so that mobile Press strip 71 on plate 70 will not squeeze the inclined-plane 56 of slider bar 62.

The rear wheel 3 of temporary guard rail of the invention can only walk forward, cannot walk backward.When temporary guard rail needs forward When mobile, user's pull handle 72 drags temporary guard rail walking of the invention, as shown in figure 5, when after the forward movement of wheel 3 When, the rotation counterclockwise at this time of rear wheel 3.When temporary guard rail of the invention needs to turn, user passes through swing handle 72, 72 handle 72 of hand drives flexible interior bar 83 to rotate through adjusting rod 73, and interior bar 83 of stretching drives switch block 80 to rotate through flexible housing 82, And then switch block 80 drives preceding wheel 7 to rotate through front axle 81, preceding wheel 7 rotates to adjust the steering of temporary guard rail of the invention.

As shown in figure 5, when the rear wheel 3 of temporary guard rail of the invention is walked forward, the rotation counterclockwise at this time of rear wheel 3 Turn；Wheel 3 drives the rotation of the first belt pulley 10 through rear axle 9 afterwards, and the first belt pulley 10 drives the second belt pulley 24 inverse through belt 12 Hour hands rotation.Second belt pulley 24 drives the rotation of the first pinion gear 25 through first rotating shaft 23, and the first pinion gear 25 is through the first canine tooth 29 the first telescopic shaft 26 of drive of wheel rotates clockwise, and as shown in figure 16, the first telescopic shaft 26 drives first gear 30 to revolve clockwise Turn.First gear 30 drives the first rack gear 54 mobile to the direction far from the second rack gear 55, and the first rack gear 54 drives the second sliding Plate 51 is mobile, and the second guide block 52 and the second rack gear 55 follow the second sliding panel 51 mobile, and second spring 53 is stretched.With first Gear 30 persistently stirs the first rack gear 54, and first gear 30 can toggle it to the first rack gear 54 close to one end of the second rack gear 55, The continuing to rotate clockwise to maintain the first rack gear 54 of following first gear 30 is struck to the position of maximum distance.Due to There are spacing between first rack gear 54 and the second rack gear 55, engage so first gear 30 will not be generated with the second rack gear 55.? When first rack gear 54 is toggled it to the position of maximum distance by first gear 30, the position of the second rack gear 55 can allow second gear 32 After movement meshing relation can be generated with the second rack gear 55.

After temporary guard rail of the invention stops, due to first telescopic shaft of the limitation of one-way clutch 21,26 rotation counterclockwise Turn, then first gear 30 will not rotate counterclockwise, the first rack gear 54 still maintain by first gear 30 toggle it to it is maximum away from From position.

When temporary guard rail of the invention needs to brake, user pushes handle 72 with biggish power, and handle 72 to adjust Pole 73 pushes；When adjusting rod 73 moves down under large force, the ring disk 84 squeezes c-type elastic piece 87, c-type elastic piece 87 Gradually become flat, the ring disk 84 can be easier to cross c-type elastic piece 87, and the ring disk 84 can be located at the lower end of c-type elastic piece 87；? After the ring disk 84 can cross c-type elastic piece 87 and be located at the lower end of c-type elastic piece 87, c-type elastic piece 87 resets, and the ring disk 84 is limited Plate 86 is blocked, and such the ring disk 84 will be unable to be pressed down and maintain to be limited the position that plate 86 is blocked.In adjusting rod 73 During pushing so that the ring disk 84 crosses c-type elastic piece 87, adjusting rod 73 is pressed down flexible interior bar 83, movable plate 70 with It is moved down with flexible interior bar 83, the second telescopic rod 76 is stretched.Movable plate 70 moves down, and slides so that the press strip 71 of movable plate 70 squeezes The inclined-plane 56 of dynamic item 62；After press strip 71 squeezes inclined-plane 56 on slider bar 62, slider bar 62 is mobile to the direction of trigger board 61, Third guide block 64 follows slider bar 62 mobile, and third spring 65 is compressed, the inclined-plane 56 of 61 squeeze adjustments block 41 of trigger board.It is moving Movable plate 70 move down stopping after, press strip 71 is still in the state for pressing against 62 inclined-plane 56 of slider bar, and such trigger board 61 can be held The continuous inclined-plane 56 that press adjusting block 41.After the inclined-plane of adjusting block 41 56 is squeezed, adjusting block 41 drive connecting plate 31 to The direction of first telescopic shaft 26 is mobile, and the first telescopic inner axis 28 and the second telescopic inner axis 35 are compressed, and leaf spring 57 is compressed, and such as schemes 8, shown in 17, the disengaging of first gear 30 in the first telescopic inner axis 28 engage with the first rack gear 54, in the disengaging of first gear 30 and During first rack gear 54 engages, the second gear 32 in the second telescopic inner axis 35 is engaged with the second rack gear 55, and second is flexible The second pinion gear 36 in inner shaft 35 is engaged with change gear 37.It is engaged when first gear 30 is completely disengaged with the first rack gear 54 Afterwards, second gear 32 is engaged with the second rack gear 55 completely, and the second pinion gear 36 is engaged with change gear 37 completely.

Since first gear 30 is engaged departing from the first rack gear 54, then the first rack gear 54 cannot be maintained by One gear 30 toggles it to the position of maximum distance.At this point, the second spring 53 in tensional state can reset, 52 band of the second guide block Dynamic second sliding panel 51 is mobile to be resetted, and the first rack gear 54 and the second rack gear 55 follow the second sliding panel 51 is mobile to reset, the second tooth The mobile reset of item 55 drives second gear 32 to rotate counterclockwise.Second gear 32 drives the second small tooth through the second telescopic inner axis 35 The rotation counterclockwise of wheel 36；Second pinion gear 36 drive change gear 37 rotate clockwise, change gear 37 through the second gear wheel 38, As shown in Figure 10,12, the second shaft 40 drives third gear 39 to rotate clockwise, and third gear 39 drives third rack gear 43 downward Mobile, third rack gear 43 drives the first sliding panel 45 slide downward in square type guide tube 18, and brake plate 42 follows the first sliding panel 45 move down, and the first spring 46 is stretched.On the first sliding panel 45 brake plate 42 and ground face contact after, the second bullet at this time Spring 53, which does not reset, to be finished, so the second rack gear 55 on the second sliding panel 51 can still larger be stirred to second gear 32 1 Power, second gear 32 after a series of transmitting meeting so that third gear 39 still to third rack gear 43 have one it is biggish downwards Stir power；This ensures that being still remained on third rack gear 43 and the first sliding panel 45 after brake plate 42 and ground face contact Biggish lower pressure has reached between brake plate 42 and ground so that there are larger pressure between brake plate 42 and ground There are biggish stiction, so that temporary guard rail of the invention will not be pushed easily；Finally make temporary guard rail of the invention After having the effect of that wheel is braked on traditional temporary guard rail.

After temporary guard rail of the invention does not need to be braked, user is with biggish power by 72 pull-up of handle, handle 72 Pull-up adjusting rod 73, the ring disk 84 on adjusting rod 73 crosses c-type elastic piece 87, and the ring disk 84 eventually stays in c-type elastic piece 87 Upper end and the ring disk 84 can with c-type elastic piece 87 generate squeeze contact.After adjusting rod 73 is pulled up, adjusting rod 73 to stretch Interior bar 83 is pulled up, and then sliding panel is pulled up, and press strip 71 follows sliding panel mobile.Inclined-plane 56 on slider bar 62 is no longer influenced by The extruding of press strip 71, under the reset response of third spring 65, third guide block 64 drives slider bar 62 is mobile to reset, trigger board 61 The no longer inclined-plane 56 of squeeze adjustments block 41.After the inclined-plane of adjusting block 41 56 is no longer influenced by extruding, in the reset response of leaf spring 57 Under, connecting plate 31 drives adjusting block 41 is mobile to reset, connecting plate 31 drive the first telescopic inner axis 28 and the second telescopic inner axis 35 to The direction of adjusting block 41 is mobile to be resetted, and the disengaging of second gear 32 in the second telescopic inner axis 35 is engaged with the second rack gear 55, the The disengaging of two pinion 36 is engaged with change gear 37；During the disengaging of second gear 32 is engaged with the second rack gear 55, the First gear 30 in one telescopic inner axis 28 is engaged with the first rack gear 54.When second gear 32 is nibbled with the disengaging of the second rack gear 55 completely After conjunction, first gear 30 and the first rack gear 54 are at a fully engaged.After first gear 30 and the first rack gear 54 are at a fully engaged, due to list Prevent first gear 30 from rotating counterclockwise to clutch 21, then the first rack gear 54 cannot be further continued for mobile reset, into And second spring 53 is stretched to a certain degree.When the second pinion gear 36 is detached from change gear 37 after engagement, third gear 39 No longer to third rack gear 43 have it is downward stir power, then first sliding panel 45 is mobile under the reset response of the first spring 46 It resets, brake plate 42 follows the first sliding panel 45 is mobile to reset.

In conclusion main beneficial effect of the invention is: brake plate of the invention in the presence of with ground after press contacts, There are biggish stiction between brake plate and ground, so that temporary guard rail of the invention will not be pushed easily；Finally make After temporary guard rail of the invention has the effect of that wheel is braked on traditional temporary guard rail.In addition, temporary guard rail of the invention exists When still being pushed by external force after braking, preceding wheel of the invention and rear wheel can still be rolled, and only brake plate is being worn, from And avoid wheel in traditional temporary guard rail and slide caused abrasion condition on the ground in a manner of non-rotary, avoid wheel Son is worn down to the case where non-circular shape, ensure that wheel can make temporary guard rail smoothly walk；It finally avoids replacing this hair The case where bright preceding wheel and rear wheel；Relative to the wheel cost to be replaced after being seriously worn of wheel, made in the present invention Replacement cost of the movable plate after being seriously worn has reached saving temporary guard rail replacement braking parts well below the cost of replacement wheel The cost of part.

Claims (10)

1. a kind of moveable temporary guard rail for municipal works, it is characterised in that: it include protective fence, pedestal, rear wheel, Arrestment mechanism, regulating mechanism, steering mechanism, preceding wheel, the first support plate, rear axle, the first belt pulley, belt, wherein pedestal Protective fence is installed on upper surface；Arrestment mechanism is installed on the lower surface of pedestal；Symmetrically pacify on the lower surface of pedestal one end There are two the first support plate, the other ends to be equipped with steering mechanism for dress；Two preceding wheels are mounted in steering mechanism；The side of pedestal On regulating mechanism is installed；Rear axle is mounted in the circular hole of two the first support plates by bearing, and the both ends of rear axle are pierced by Two the first support plates；It symmetrically installs there are two rear wheel at the both ends of rear axle；First belt pulley is mounted on rear axle, and first Belt pulley is located between two the first support plates；One end of belt is mounted on the first belt pulley, and the other end is mounted on brake On structure；

Above-mentioned arrestment mechanism includes square type support ring, the second fixed plate, the first fixed plate, square type guide tube, third support plate, second Support plate, one-way clutch, fixation hole, first rotating shaft, the second belt pulley, the first pinion gear, the first telescopic shaft, the first canine tooth Wheel, leaf spring, first gear, connecting plate, second gear, the second telescopic shaft, the second pinion gear, change gear, the second gear wheel, Three gears, the second shaft, adjusting block, brake plate, third rack gear, the first guide block, the first sliding panel, the first spring, first sliding groove, First guide groove, second sliding slot, the second guide groove, the second sliding panel, the second guide block, second spring, the first rack gear, the second rack gear, tiltedly Face, wherein the first fixed plate, the second support plate, third support plate, square type guide tube and the second fixed plate are installed in above-mentioned pedestal Lower surface middle；Square type guide tube is between the first fixed plate and third support plate；Second support plate is close to above-mentioned first Support plate, and the second support plate is between third support plate and the first support plate；Second fixed plate is close to the side of pedestal；The The fixation hole of perforation is provided in two support plates；First telescopic shaft is made of the first pivoted housing and the first telescopic inner axis, and first is flexible Inner shaft drives the rotation of the first pivoted housing；One-way clutch is installed on the periphery of first rotating shaft；The periphery of one-way clutch is solid Dingan County is in the fixation hole of the second support plate；First gear is installed in first telescopic inner axis；First gear wheel is mounted on On one pivoted housing, and the first gear wheel is between one-way clutch and first gear；First rotating shaft is mounted on second by bearing In the circular hole of support plate, and first rotating shaft is located at the downside of the first telescopic shaft；Second belt pulley and the first pinion gear are installed in In first rotating shaft, and the second belt pulley is between the second support plate and the first pinion gear；First pinion gear and the first gear wheel It is meshed；Second telescopic shaft is made of the second pivoted housing and the second telescopic inner axis, and the second telescopic inner axis drive the rotation of the second pivoted housing； Second pivoted housing is mounted in the circular hole of third support plate by bearing；It is flexible that second pinion gear and second gear are installed in second In inner shaft, and the second pinion gear is between second gear and the second pivoted housing；Change gear is mounted on third support plate by axis On；Second shaft is mounted in the circular hole of third support plate by bearing；Third gear and the second gear wheel are installed in second In shaft, and third gear is between the second gear wheel and third support plate；Change gear is located at the second gear wheel and second Between telescopic inner axis；Change gear is meshed with the second gear wheel；Change gear is matched with the second pinion gear；The one of connecting plate End is mounted on the one end of the first telescopic inner axis far from the first pivoted housing, and the other end is mounted on the second telescopic inner axis far from the second pivoted housing One end on；Second fixed plate is equipped with square type support ring far from one end of pedestal；Adjusting block is pacified by way of being slidably matched In square type support ring, and the both ends of adjusting block are pierced by square type support ring；One end of adjusting block is fixedly mounted on connecting plate In plate face far from the first telescopic inner axis, the other end has inclined-plane；One end of two leaf springs is mounted on the two sides of square type support ring On face, the other end is mounted on connecting plate；Two leaf springs are distributed in the two sides of adjusting block；There is first sliding groove in square type guide tube； It symmetrically opens there are two the first guide groove the two sides of first sliding groove；It symmetrically installs there are two first the two sides of first sliding panel one end Guide block, the other end are equipped with brake plate；Third rack gear is installed on the side of the first sliding panel；First sliding panel is matched by sliding The mode of conjunction is mounted in the first sliding groove of square type guide tube；One end of first spring is mounted on the first sliding panel, other end peace On the bottom surface of first sliding groove, the first spring is located in the first sliding groove of square type guide tube；Two the first guide blocks are matched by sliding The mode of conjunction is separately mounted in two the first guide grooves；Third rack gear slides in square type guide tube；Third gear and third rack gear It is meshed；First fixed plate is far from the second sliding slot for being provided with perforation in the plate face of pedestal；The two sides of second sliding slot are symmetrically provided with Two the second guide grooves；It symmetrically installs there are two the second guide block the two sides of second sliding panel；Second sliding panel is by being slidably matched Mode be mounted in the second sliding slot of the first fixed plate；Two the second guide blocks are separately mounted to two by way of being slidably matched In a second guide groove；One end of two second springs is separately mounted on two the second guide blocks, and the other end is separately mounted to two On the groove face of second guide groove；Two second springs are located in two the second guide grooves；It is installed on the lower surface of second sliding panel There are the first rack gear and the second rack gear；First rack gear and the second rack gear are distributed along the length direction of the second sliding panel, and the first rack gear There is spacing between the second rack gear；First gear is matched with the first rack gear；Second gear is matched with the second rack gear；

One end of above-mentioned belt is mounted on the first belt pulley, and the other end is mounted on the second belt pulley；

Above-mentioned steering mechanism has the function of that wheel turns to before adjusting；Regulating mechanism makes adjusting block sliding in square type support ring It is dynamic, achieve the purpose that adjusting block generates displacement；

Above-mentioned steering mechanism also has the function of controlling to adjust mechanism action, so that carrying out position to adjusting block after regulating mechanism movement Transposition section.

2. a kind of moveable temporary guard rail for municipal works according to claim 1, it is characterised in that: above-mentioned tune Section mechanism includes trigger board, slider bar, third fixed plate, third guide block, third spring, third guide groove, third sliding slot, inclined-plane, Wherein third fixed plate is mounted on the side of pedestal；The third sliding slot of perforation is provided in third fixed plate；The two of third sliding slot It symmetrically opens there are two third guide groove side；It symmetrically installs there are two third guide block the two sides of slider bar；Slider bar passes through sliding The mode of cooperation is mounted in the third sliding slot of third fixed plate；Two third guide blocks are installed respectively by way of being slidably matched In two third guide grooves；One end of two third springs is separately mounted on two third guide blocks, and the other end is separately mounted to On the groove face of two third guide grooves；Two third springs are located in two third guide grooves；One end of slider bar has inclined-plane, The other end is equipped with trigger board；Trigger board is matched with the inclined-plane of above-mentioned adjusting block；The inclined-plane of slider bar and above-mentioned steering mechanism It matches.

3. a kind of moveable temporary guard rail for municipal works according to claim 1, it is characterised in that: above-mentioned turn It include movable plate, press strip, handle, adjusting rod, the 4th fixed plate, the 5th fixed plate, the second telescopic rod, fixed block, to mechanism Six fixed plates, the first telescopic rod, switch block, front axle, the ring disk, the 7th fixed plate, limit plate, c-type elastic piece, wherein the 4th fixed plate Above-mentioned pedestal is mounted on far from one end upper surface of rear wheel；It is separate that 6th fixed plate by fixed block is mounted on above-mentioned pedestal Afterwards on one end lower surface of wheel；Two the 7th fixed plates are symmetrically mounted in the 4th fixed plate, and two the 7th fixed plates At the 4th one end of fixed plate far from pedestal；5th fixed plate is mounted on the middle position of the 4th fixed plate；5th is solid The mounting surface of fixed board is for the same side with the mounting surface of the 7th fixed plate；One end of two the second telescopic rods is mounted on the 5th fixed plate Lower surface on, the other end is equipped with movable plate；Two the second telescopic rods are symmetrically dispersed on movable plate；The centre of movable plate Position is provided with the circular hole of perforation, and the circular hole is located between two the second telescopic rods；One end of press strip is mounted on the side of movable plate On face；First telescopic rod is made of flexible housing and flexible interior bar, and flexible interior bar drives flexible housing rotation；Flexible housing is logical It crosses bearing to be mounted in the circular hole of the 6th fixed plate, and the both ends of flexible housing are pierced by the 6th fixed plate；Flexible interior bar passes through Bearing is mounted in the circular hole of movable plate, and flexible interior bar passes through movable plate；Flexible housing is fixed far from one end of flexible interior bar Switch block is installed；The two sides of switch block are symmetrically installed by two front axles；One end of adjusting rod is equipped with handle, and the other end passes through the 5th It fixed plate and is mutually fixedly connected with one end of flexible interior bar；The ring disk is fixedly mounted on adjusting rod, and the ring disk is located at handle and Between five fixed plates；Two c-type elastic pieces are separately mounted in a symmetrical manner in two the 7th fixed plates；Two limit plates with Symmetrical mode is separately mounted in two the 7th fixed plates；Two c-type elastic pieces are located between two the 7th fixed plates；Two Limit plate is located between two the 7th fixed plates；Limit plate is located at the downside of c-type elastic piece；The ring disk and two c-type elastic piece phases Cooperation；The ring disk is matched with two limit plates.

4. a kind of moveable temporary guard rail for municipal works according to claim 2 or 3, it is characterised in that: two A above-mentioned preceding wheel is separately mounted on above-mentioned two front axle；Above-mentioned press strip is matched with the inclined-plane on slider bar.

5. a kind of moveable temporary guard rail for municipal works according to claim 1, it is characterised in that: above-mentioned Teeth on one rack gear, the second rack gear, first gear, second gear, the second pinion gear and change gear are all the same, for first The teeth of gear: the teeth of first gear not only have the shape of traditional teeth, but also the teeth both ends of first gear all have Wedge angle.

6. a kind of moveable temporary guard rail for municipal works according to claim 1, it is characterised in that: above-mentioned Diameter of the diameter of one pinion gear less than the first gear wheel.

7. a kind of moveable temporary guard rail for municipal works according to claim 1, it is characterised in that: above-mentioned change To gear diameter less than the second gear wheel diameter；Diameter of the diameter of second pinion gear less than the second gear wheel.

8. a kind of moveable temporary guard rail for municipal works according to claim 3, it is characterised in that: above-mentioned Rubber handle set is installed on hand, and rubber handle is put on anti-skid structure.

9. a kind of moveable temporary guard rail for municipal works according to claim 3, it is characterised in that: above-mentioned C Type elastic piece is made of metal material.

10. a kind of moveable temporary guard rail for municipal works according to claim 1, it is characterised in that: above-mentioned First spring is extension spring；Second spring is extension spring；Third spring is compressed spring.