CN108542195A - A kind of urban planning layering display platform - Google Patents

Abstract

The present invention relates to a kind of urban planning layering display platforms, effectively solve bad, the inconvenient to carry problem of bandwagon effect；Its technical solution solved be include tablet, having on tablet can horizontally slip and rotatable first rotating shaft, and there are multiple supporting rods being arranged above and below in first rotating shaft top, and has telescoping mechanism between supporting rod and first rotating shaft；There is sleeve in the rear and front end of supporting rod, and dismountable hollow cylinder is housed on former and later two sleeves, has the second shaft in cylinder, has torsional spring between the second shaft and cylinder, there is rotatable connecting rod on cylinder；There is rotatable hollow disk at supporting rod both ends, are connected with counterbore by guide rod between disk and sleeve；Coaxial internal gear is housed, internal gear can relatively rotate with disk, have first through hole on disk, have locating rod on sleeve in disk；There is external gear on supporting rod, annular groove is offered on supporting rod, there is the first pin on sleeve；Structure of the invention is ingenious, highly practical, novel, bandwagon effect diversification.

Description

A kind of urban planning layering display platform

Technical field

The present invention relates to urban planning field, especially a kind of urban planning layering display platform.

Background technology

Often intuitively reflect the planning side in the region using building sand table model in physical construction planning displaying Case or combination, accurately to express prcgramming ideas and desired effect, but since the sand table model of single plane is only capable of showing a kind of wound Meaning and scheme, planning and designing person can not show its multiple design simultaneously in same sand table model, and if planning region compared with When big, light model floor space is not larger, and planning details therein also can not completely embody, and onlooker can not also pass through sand table model The accurate mentality of designing for understanding designer or conception, for tier building, often each layer has different set Meter theory is difficult to show a kind of three-dimensional intuitive feeling, and traditional exhibition method is generally shown by the way of traditional Mode is relatively simple, cannot arbitrarily switch exhibition method, bandwagon effect is caused to be affected, and lacks novelty, cannot bring and regard Feel impact.

Meanwhile the displayings such as urban planning displaying, the displaying of commercial building layout, institution of higher learning's building plans model sand table displaying Cabinet is usually all the integral structure being fixedly mounted, and the showcase of this integral structure has bandwagon effect good, and structure is steady Fixed advantage, but the showcase of this structure haves the shortcomings that more, for example is not easy to dismantle and mobile, and relatively waste money Source, show stand volume is big, and difficulty is moved, and colleges and universities' building plans teachers' instruction cannot achieve classroom scene Sand Table Teaching.Therefore, existing Displaying device cannot increasingly meet the development in city, need to be improved.

Invention content

For the above situation, to solve problems of the prior art, the purpose of the present invention is just to provide a kind of city Planning layering display platform, can effectively solve that bandwagon effect is bad, problem inconvenient to carry.

Its technical solution solved is to include tablet, and respectively there are two can move left and right along tablet for the front and rear sides of tablet Sliding block, the sliding block of left and right side distinguishes correspondence, rotatable first is connected between former and later two sliding blocks of homonymy Shaft, there is supporting rod that is multiple parallel with first rotating shaft and being arranged above and below above first rotating shaft, between two neighboring supporting rod And telescoping mechanism is respectively connected between supporting rod and first rotating shaft；Supporting rod is not rotatable, and the rear and front end of each supporting rod is equal There are one rotatable sleeve, sleeve can be moved forward and backward suit along supporting rod, on former and later two sleeves there are one dresses and supporting rod Parallel and dismountable hollow cylinder, cylinder is interior through there is rotatable second shaft, is equipped with and turns round between the second shaft and cylinder Spring, the rear and front end of cylinder respectively there are one can swing connecting rod；

Respectively there are one the hollow disk being located on the inside of sleeve, disk and supports for suit on the rear and front end of each supporting rod Bar does not contact；Have multiple counterbores on the medial surface of sleeve, have on the lateral surface of disk it is multiple correspond with counterbore and be placed in it is heavy Guide rod in hole is connected with compression spring, before sleeve back-and-forth motion can make guide rod and disk through compression spring between the bottom and guide rod of counterbore After move；The internal gear coaxial with disk is housed, internal gear can be relatively rotated with disk, circumference on disk on the inner edge surface of disk Multiple first through hole are evenly equipped with, there is the locating rod that can be placed in first through hole on the medial surface of sleeve；When locating rod is placed in first When in through-hole, disk rotates simultaneously with internal gear；The external gear that can be meshed with internal gear is set on supporting rod, external gear is not Rotatably；Annular groove is offered on supporting rod, sleeve is equipped with the first pin that can be placed in annular groove；Sleeve moves inward meeting Internal gear is set to be engaged with external gear first, then the first pin can be placed in annular groove, while locating rod is placed in first through hole, Disk is set to be rotated simultaneously with internal gear.

Structure of the invention is ingenious, highly practical, novel, and bandwagon effect diversification, whole device tunable performance is good, tears open Dress is convenient, does not take up space, and it is also extremely convenient to carry transport.

Description of the drawings

Fig. 1 is the front view of the present invention（Unfolded state）.

Fig. 2 is the vertical view of the present invention.

Fig. 3 is the partial enlarged view in Fig. 1.

Fig. 4 is the matching relationship vertical view of supporting rod and cylinder.

Fig. 5 is the partial enlarged view in Fig. 4.

Fig. 6 is A-A sectional views in Fig. 5.

Fig. 7 is B-B sectional views in Fig. 5.

Fig. 8 is the relational graph of sliding block and first rotating shaft cooperation.

Fig. 9 is the vertical view (folded state) of the present invention.

Figure 10 is several exhibition method schematic diagrams.

Specific implementation mode

The specific implementation mode of the present invention is described in further details below in conjunction with attached drawing.

It is provided by Fig. 1 to Figure 10, the present invention includes tablet 1, and respectively there are two can be along tablet 1 or so for the front and rear sides of tablet 1 The sliding block 2 of mobile sliding block 2, left and right side distinguishes correspondence, is connected between former and later two sliding blocks 2 of homonymy rotatable First rotating shaft 3, there is supporting rod 4 that is multiple parallel with first rotating shaft 3 and being arranged above and below in the top of first rotating shaft 3, two neighboring It is respectively connected with telescoping mechanism between supporting rod 4 and between supporting rod 4 and first rotating shaft 3；Supporting rod 4 is not rotatable, each to support The rear and front end of bar 4 is set with there are one rotatable sleeve 5, and sleeve 5 can be moved forward and backward along supporting rod 4, former and later two sleeves 5 Upper dress is there are one and dismountable hollow cylinder 6 parallel with supporting rod 4, through there is rotatable second shaft 7 in cylinder 6, the Be equipped with torsional spring 8 between two shafts 7 and cylinder 6, the rear and front end of cylinder 6 respectively there are one can swing connecting rod 9；

Respectively there are one the hollow disk 10 for being located at 5 inside of sleeve, disks 10 for suit on the rear and front end of each supporting rod 4 It is not contacted with supporting rod 4；There are multiple counterbores on the medial surface of sleeve 5, has on the lateral surface of disk 10 multiple a pair of with counterbore one The guide rod 11 in counterbore is answered and be placed in, compression spring is connected between the bottom and guide rod 11 of counterbore, the back-and-forth motion of sleeve 5 can be through compression spring Guide rod 11 and disk 10 is set to be moved forward and backward；The internal gear 12 coaxial with disk 10, internal gear 12 are housed on the inner edge surface of disk 10 It can be relatively rotated with disk 10, multiple first through hole 17 are evenly distributed on disk 10, can be placed in by having on the medial surface of sleeve 5 Locating rod 16 in one through-hole 17；When locating rod 16 is placed in first through hole 17, disk 10 rotates simultaneously with internal gear 12；Branch The external gear 13 that can be meshed with internal gear 12 is set on strut 4, external gear 13 is not rotatable；Ring is offered on supporting rod 4 Shape slot 15, sleeve 5 are equipped with the first pin 14 that can be placed in annular groove 15；Sleeve 5 moves inward can make internal gear 12 first It is engaged with external gear 13, then the first pin 14 can be placed in annular groove 15, while locating rod 16 is placed in first through hole 17, is made Disk 10 rotates simultaneously with internal gear 12.

In order to make sliding block 2 that can be moved left and right along tablet 1, offer T-slot on the tablet 1, the lower end of sliding block 2 be with The matched T-block of T-slot, T-block are placed in T-slot and are moved left and right along T-slot, and it is vertical to be threaded on sliding block 2 The lower end of holding screw 18, holding screw 18 can be placed in T-slot.

It rotates and positions along sliding block 2 for the ease of first rotating shaft 3, circumference in the first rotating shaft 3 being located in sliding block 2 Multiple radial grooves 19 are evenly equipped with, sliding block 2 is equipped with multiple and 19 one-to-one first blind hole of groove, is set in the first blind hole There is the second pin 20 that can be moved along the first blind hole, compression spring is equipped between the second pin 20 and the first blind hole, the second pin 20 can It is placed in groove 19.

In order to realize that fixation, the expansion bracket are hinged by multiple telescopic units ending and are formed, each telescopic unit Including connecting rod 21 hinged in the middle part of a pair, the fixed block 22 that can be slided along first rotating shaft 3 there are two suits in first rotating shaft 3, The end of connecting rod 21 is hinged on fixed block 22, and it is rectangular to simultaneously support the cross section of bar 4, and the inner edge surface of fixed block 22 is also It is rectangular.

In order to realize that sleeve 5 is detachably installed with cylinder 6, the outer edge surface of the sleeve 5 is equipped with protruding block 23, cylinder 6 outer edge surface, which is equipped with, can be placed in T-slot and can be moved before and after T-slot with 23 matched T-slot of protruding block, protruding block 23 It is dynamic.

In order to easily facilitate operation, the external gear 13 is located at the inside of hollow disk 10, and annular groove 15 is located at first The inside of pin 14, the distance between external gear 13 and hollow disk 10 be less than between annular groove 15 and the first pin 14 away from From.

In order to realize that disk 10 is not relatively rotated with internal gear 12, described when locating rod 16 is placed in first through hole 17 Multiple second through-holes 24 are offered on the end face of internal gear 12, multiple second through-holes 24 are corresponded with multiple first through hole 17, Locating rod 16 can be also cross first through hole 17 and the second through-hole 24.

For the ease of in 14 automatic clamping annular groove 15 of the first pin, being evenly distributed on the inner edge surface of the sleeve 5 Multiple the second radial blind holes, the first pin 14 are placed in the second blind hole and can be moved along the second blind hole, the first pin 14 and the It is connected with compression spring between the bottom of two blind holes, driving lever 25, one end of driving lever 25 and the first pin 14 are connected on the first pin 14 Fixed, the other end is placed in the outside of sleeve 5.

In order to realize that the contraction and displaying to drawing, the outer edge surface of the cylinder 6 are equipped with opening, connecting rod 9 is wherein One end is hinged on cylinder 6, and the hinge joint of connecting rod 9 and cylinder 6 is located at the front and rear sides of opening, and has certain friction Power.

The use state of the present invention is under the action of before use, the supporting rod 4 of the left and right sides is in telescoping mechanism, to be in Contraction state, that is, two fixed blocks 22 being sleeved on each supporting rod 4, is located at the rear and front end of supporting rod 4, further By the connecting rod 21 being hinged, the distance between two neighboring supporting rod 4 is made to be in smaller state, at the same shaft with it is flexible The distance between bar is also smaller, makes entire compact；Left and right first rotating shaft 3 is in rotatable state, i.e. locking screw simultaneously Nail is not yet locked, and two first rotating shafts 3 in left and right, which are rotated at this time to multiple supporting rods 4, is in horizontal state, constitutes the left and right sides Supporting rod 4 be laid in the effect on tablet 1.To make the height of whole device there was only the thickness of about two tablets 1.

Sleeve 5 is not sleeved on the end of supporting rod 4 at this time, simultaneously because sleeve 5 is carried out with cylinder 6 by protruding block 23 It clamps, makes sleeve 5 that can be moved forward and backward along cylinder 6, and sleeve 5 can be made to be detached from cylinder 6, therefore sleeve 5 is also located at this time with cylinder 6 In the drawing for winding displaying in need in the second shaft 7 in disengaged position, cylinder 6 in advance, and drawing can be sleeved on Under the action of torsional spring 8 in two shafts 7, keep being wrapped in state in the second shaft 7, make cylinder 6, sleeve 5, with tablet 1 and Supporting rod 4 is in discrete state, then can be good by each part and device package with chest, is convenient for carrying, is readily transported.

When needing to be shown, first by tablet 1 it is horizontal positioned on ground, and can be as needed suitably to tablet 1 is fixed, and then rotates first rotating shaft 3, and the supporting rod 4 of the left and right sides can together carry out under the drive of telescoping mechanism at this time Rotation, and the angle of rotation is adjusted as needed, by rotating different angles, and the distance of the adjustment sliding of sliding block 2, Ke Yishi Existing different bandwagon effect, several situations as shown in Figure 10, or other bandwagon effects；In the mistake that first rotating shaft 3 rotates Cheng Zhong, first rotating shaft 3 can be rotated along sliding block 2, at this time since first rotating shaft 3 is equipped with groove 19, in the mistake of rotation Cheng Zhong, the second pin 20 can be stuck in groove 19, and since the dynamics of rotation first rotating shaft 3 is bigger, shaft is rotated further, Second pin 20 can be detached from groove 19 again, when after rotating first rotating shaft 3, the second pin 20 will be stuck in groove 19, from And the position of shaft is made to be fixed, it does not relatively rotate with sliding block 2；Simultaneously when the distance that sliding block 2 is moved left and right along tablet 1 After adjusting, lock-screw is rotated at this time, the lower face of lock-screw is made to be in contact with tablet 1, and sliding block 2 just cannot be after at this time It is continuous to be slided, realize the positioning to sliding block 2.

After the position of shaft has been fixed, it is pulled up supporting rod 4 at this time, or stretch telescoping mechanism, makes branch The distance between strut 4 and supporting rod 4 are adjusted greatly, and simultaneously supporting the distance between bar 4 and first rotating shaft 3 can also be adjusted It is bigger, so that whole device is in a relatively high position, due to having certain rub between the connecting rod 21 that is hinged Power to be wiped, i.e., there is certain frictional force, therefore after stretching at hinge joint, whole device can keep the state after stretching, if Frictional force not the gravity of resistance customer service supporting rod 4 when, telescoping mechanism is fixed in the connecting rod 9 that auxiliary can be used, and places flexible Mechanism is shunk.

After the position of supporting rod 4 is adjusted, a sleeve 5 is respectively clamped in the rear and front end of cylinder 6 at this time, due to set The outer edge surface of cylinder 5 is equipped with protruding block 23, the outer edge surface of cylinder 6 be equipped with 23 matched T-slot of protruding block, therefore can will Protruding block 23 on sleeve 5 slides into along the T-slot of cylinder 6.

It is then that the sleeve 5 of 6 rear and front end of cylinder is corresponding with supporting rod 4, and continue slid inward sleeve 5, make front and back two A sleeve 5 can be sleeved on the rear and front end of supporting rod 4, when sleeve 5 is sleeved on supporting rod 4, since disk 10 is in set The inside of cylinder 5, therefore the internal gear 12 on 10 inner edge surface of disk can be carried out with the external gear 13 on supporting rod 4 first Engagement, during engagement, can be potentially encountered the situation not corresponding with external gear 13 of internal gear 12, sleeve 5 can encounter one at this time Fixed resistance, it is only necessary to which continuing slid inward can be so that internal-external gear 13 engages, and when meeting obstructions, it is heavy that guide rod 11 can squeeze Compression spring in hole, and make compression spring is appropriate to be squeezed, again during, be located at the first pin 14 on 5 inner edge surface of sleeve still It does not stick into annular groove 15, while locating rod 16 also not yet enters in first through hole 17.

Then continue to turnbarrel 5, at this time due to the inner edge surface of the cross section of supporting rod 4 and fixed block 22 be it is rectangular, because This, supporting rod 4 is not rotatable, and the rear and front end of supporting rod 4 with sleeve 5 to the part of contact, cross section is circle, and is propped up Strut 4 is clearance fit with sleeve 5, therefore sleeve 5 can rotate, simultaneously because internal gear 12 can be rotated along disk 10, and it is interior The external gear 13 that gear 12 engages does not turn, therefore turnbarrel 5 at this time, sleeve 5 and the disk 10 connected by guide rod 11, with The cylinder 6 that sleeve 5 clamps can be rotated, opposite supporting rod 4, the internal gear 12 being set with supporting rod 4, external gear 13, It is not available for rotating.

After rotating to suitable angle, first rotating shaft of stopping rotating at this time 3, and continue slid inward sleeve 5, it covers at this time Cylinder 5 can drive the locating rod 16 being connected on 5 medial surface of sleeve that can move inward, after the sleeve 5 that stops rotating, first through hole 17 Can be corresponding with the second through-hole 24, locating rod 16, which moves inward, can be inserted into simultaneously in first through hole 17 and the second through-hole 24, make Disk 10 does not relatively rotate with internal gear 12, to make disk 10 be fixed, then makes sleeve 5 not further through guide rod 11 It is rotating, after above-mentioned locating rod 16 is inserted into first through hole 17 and the second through-hole 24, the first pin 14 can block as in annular groove 15, Prevent sleeve 5 from sliding in and out, the front and back position for the angle and sleeve 5 that so far sleeve 5 rotates also is fixed.

After sleeve 5 is fixed, 6 outer edge surface upper connecting rod 9 of cylinder will be hinged on and be pulled to vertical with cylinder 6, and will be twined The drawing being wound in the second shaft 7 pulls out cylinder 6, and drawing is fixed on by clip on connecting rod 9, is that whole device shows Similar to the exhibition method of Figure 10, facilitate exhibition.

It when that need not put on display, stirs be connected to driving lever 25 on the first pin 14 first, make the first pin 14 and annular groove 15 are detached from, and can slide in and out sleeve 5 at this time, so that sleeve 5, cylinder 6, supporting rod 4 is again at discrete state, and compress branch Strut 4 withdraws drawing, then installs each part and device with babinet.

In displaying, especially for similar to the isostructural building in market, often each layer of layout is not quite alike, when After investor takes a fancy to a certain layer, the drawing in the cylinder 6 of this layer or more can be all collapsible into cylinder 6 at this time, or between revolve The layer for turning this layer or more, be at the direction opposite with this layer, watches successively convenient for investor or consumer.

Benefit of the present invention has shaft and other machines by the two groups of displaying devices in setting left and right, i.e. equal this in the left and right sides Structure, and by setting corresponding sliding and rotation, so as to realize abundant bandwagon effect, and multiple phases can be passed through With the shape-designing of device, the exhibition being more pleasantly surprised is shown, vision grand banquet is brought to spectators.

The present invention is realized by will be attached by telescoping mechanism between supporting rod 4 and shaft to whole device Compression, while cylinder 6 is also at dismountable state with supporting rod 4, makes whole device in a contracted state, volume is greatly Reduce, it is easy to carry and transport, while drawing can be protected, place drawing damage.

The present invention is cleverly provided with sleeve 5 in view of easy to disassemble, therefore in the junction of cylinder 6 and supporting rod 4, And with 5 matched disk 10 of sleeve, internal gear 12, external gear 13, locating rod 16 etc., realizes and facilitate adjustment drawing Show that the fixation of angle and drawing, and easy-to-mount effect are easy to operate, it is only necessary to sliding push-in can clamping, stir Driving lever 25 can unclamp.

Structure of the invention is ingenious, highly practical, novel, and bandwagon effect diversification, whole device tunable performance is good, tears open Dress is convenient, does not take up space, and it is also extremely convenient to carry transport.

Claims (9)

1. a kind of urban planning layering display platform, including tablet（1）, which is characterized in that tablet（1）Front and rear sides respectively have Two can be along tablet（1）The sliding block moved left and right（2）, the sliding block of left and right side（2）Correspondence respectively, front and back the two of homonymy A sliding block（2）Between be connected with rotatable first rotating shaft（3）, first rotating shaft（3）Top have multiple and first rotating shaft（3）It is flat Row and the supporting rod being arranged above and below（4）, two neighboring supporting rod（4）Between and supporting rod（4）With first rotating shaft（3）Between connect It is connected to telescoping mechanism；Supporting rod（4）It is not rotatable, each supporting rod（4）Rear and front end be set with that there are one rotatable sets Cylinder（5）, sleeve（5）It can be along supporting rod（4）It is moved forward and backward, former and later two sleeves（5）There are one upper dresses and supporting rod（4）It is parallel and Dismountable hollow cylinder（6）, cylinder（6）It is interior through there is rotatable second shaft（7）, the second shaft（7）With cylinder（6）It Between be equipped with torsional spring（8）, cylinder（6）Rear and front end respectively there are one can swing connecting rod（9）；

Each supporting rod（4）Rear and front end on respectively suit there are one be located at sleeve（5）The hollow disk of inside（10）, Disk（10）With supporting rod（4）It does not contact；Sleeve（5）Medial surface on have multiple counterbores, disk（10）Lateral surface on have it is more It is a to be corresponded with counterbore and be placed in the guide rod in counterbore（11）, the bottom of counterbore and guide rod（11）Between be connected with compression spring, cover Cylinder（5）Back-and-forth motion can make guide rod through compression spring（11）And disk（10）It is moved forward and backward；Disk（10）Inner edge surface on be equipped with and circle Disk（10）Coaxial internal gear（12）, internal gear（12）With disk（10）It can relatively rotate, disk（10）On be evenly distributed in it is more A first through hole（17）, sleeve（5）Medial surface on have and can be placed in first through hole（17）Interior locating rod（16）；Work as locating rod （16）It is placed in first through hole（17）When interior, disk（10）With internal gear（12）It rotates simultaneously；Supporting rod（4）On be set with can with it is interior Gear（12）The external gear being meshed（13）, external gear（13）It is not rotatable；Supporting rod（4）On offer annular groove（15）, set Cylinder（5）Annular groove can be placed in by being equipped with（15）The first interior pin（14）；Sleeve（5）Internal gear can be made first by moving inward（12） With external gear（13）It engages, then the first pin（14）Annular groove can be placed in（15）It is interior, while locating rod（16）It is logical to be placed in first Hole（17）It is interior, make disk（10）With internal gear（12）It rotates simultaneously.

2. a kind of urban planning according to claim 1 layering display platform, which is characterized in that the tablet（1） On offer T-slot, sliding block（2）Lower end be to be placed in T-slot with the matched T-block of T-slot, T-block and along a T-slot left side It moves right, sliding block（2）On be threaded with vertical holding screw（18）, holding screw（18）Lower end can be placed in T-slot.

3. a kind of urban planning according to claim 1 layering display platform, which is characterized in that described is located at sliding block （2）Interior first rotating shaft（3）On be evenly distributed in multiple radial grooves（19）, sliding block（2）It is equipped with multiple and groove（19） One-to-one first blind hole, interior be equipped with of the first blind hole can be along the second pin that the first blind hole moves（20）, the second pin（20） Compression spring, the second pin are equipped between the first blind hole（20）Groove can be placed in（19）It is interior.

4. a kind of urban planning according to claim 1 layering display platform, which is characterized in that the expansion bracket by Multiple telescopic units ending is hinged composition, and each telescopic unit includes the hinged connecting rod in a pair of middle part（21）, first turn Axis（3）There are two can be along first rotating shaft for upper suit（3）The fixed block of sliding（22）, connecting rod（21）End be hinged on fixed block （22）On, simultaneously support bar（4）Cross section be rectangular, fixed block（22）Inner edge surface also be it is rectangular.

5. a kind of urban planning according to claim 1 layering display platform, which is characterized in that the sleeve（5） Outer edge surface be equipped with protruding block（23）, cylinder（6）Outer edge surface be equipped with and protruding block（23）Matched T-slot, protrusion Block（23）It can be placed in T-slot and can be moved forward and backward along T-slot.

6. a kind of urban planning according to claim 1 layering display platform, which is characterized in that the external gear （13）Positioned at hollow disk（10）Inside, annular groove（15）Positioned at the first pin（14）Inside, external gear（13）With it is hollow Disk（10）The distance between be less than annular groove（15）With the first pin（14）The distance between.

7. a kind of urban planning according to claim 1 layering display platform, which is characterized in that the internal gear （12）End face on offer multiple second through-holes（24）, multiple second through-holes（24）With multiple first through hole（17）One is a pair of It answers, locating rod（16）It can be also cross first through hole（17）With the second through-hole（24）.

8. a kind of urban planning according to claim 1 layering displaying device, which is characterized in that the sleeve（5） Inner edge surface on be evenly distributed in multiple the second radial blind holes, the first pin（4）It is placed in the second blind hole and can be blind along second Hole is moved, the first pin（14）And second blind hole bottom between be connected with compression spring, the first pin（14）On be connected with driving lever （25）, driving lever（25）One end and the first pin（14）Fixed, the other end is placed in sleeve（5）Outside.

9. a kind of urban planning according to claim 1 layering displaying device, which is characterized in that the cylinder（6） Outer edge surface be equipped with opening, connecting rod（9）Wherein one end be hinged on cylinder（6）On, connecting rod（9）With cylinder（6）Hinge joint The front and rear sides of opening are located at, and there is certain frictional force.