CN85101078B - An apparatus for cleaning grits--purifier - Google Patents

Abstract

The present invention relates to a grain semolina selecting device which is provided with a plurality of screen layers which are stacked up and down, an inlet at one end, an outlet at the other end, a screenings collecting device provided with an adjustable baffle plate and an air distributing chamber, wherein the screen layers can be vibrated by at least one unbalanced vibrator; the inlet and the outlet are respectively used for feeding materials and discharging oversize materials; air is circulated in the screen layers above the air distributing chamber which is arranged in an air suction collecting channel which can be adjusted by the adjustable baffle plate. The present invention is provided with a supporting frame provided with a supporting frame top, a supporting frame base, and a middle support for connecting the supporting frame top and the supporting frame base; the screen layers are formed into a screen powder box which is supported near the supporting frame base in a vibrating mode, and the air distributing chamber is formed into the supporting frame top.

Description

Grain coarse powder refining equipment--wheat flour purifier

The invention relates to a kind of equipment of selected cereal semolina.This equipment has some sieve layers that stack up and down, can be by at least one unbalanced vibrator vibration; At one end establish an import, the other end is established an outlet, is used as the inflow of material and the discharge of oversize respectively, has the siftage collecting device of adjustable baffle plate, and by the air circulation of compass screen surface above the air chamber; The air chamber is in air-breathing collection conduit, and conduit available adjustment baffle plate is regulated.

The semolina picking equipment of the above-mentioned type almost constitutes the special machine that a class is specifically designed to flour milling, and this class machinery makes and may be become the cereal coarse grain of meal, fine powder and all size to its material that infeeds by sorting.

Major function of the present invention is to make by the semolina of sorting to have maximum particle size range, comprising pure coarse grain, product mix, light-end products, and specialities (comprising edible coarse grain), plumule or the like.Purpose is to seek to obtain the maximum production of pure coarse grain.

The present invention will make the variation of material input quantity the work quality of equipment not had a negative impact, and in the course of the work, machine is no longer made the change of not arrived in advance after setting up.

According to industrial process principle, the various compositions of extraction, main standard choice are the weight of sorting material from various screening installation, the sinking speed in air-flow and the size of granularity.

For finishing this task, in other industrial processes engineering fields, use all fluid beds, screen centrifuge, knot screen, pneumatic separator and other devices if any pulse of air.But known to, these install and all can not be used for improving the semolina refiner.Some particular requirements on semolina is selected, obviously can only satisfy with known semolina refiner, this class coarse grain refiner just occurred as far back as 18th century, people feel again and again, as other many art designs with a long history, a kind of important design is found in for example design of bicycle, and can it be come true, be the devil.

Meanwhile, known semolina refiner is existing development (yet needing the cooperation of some condition) aspect 26S Proteasome Structure and Function, the lacking of its progress brainstrust is thought and can't be remake further significant improvement, especially aspect master-plan.

Task of the present invention is that a kind of semolina refiner of development is compared with existing such machine, have further and enhance productivity, be convenient to the sorting of material, power need lack, manufacturing cost is reduced, and do not reduce the quality and the output of final products.

According to the present invention, use the semolina refiner of the above-mentioned type, the solution of problem will exceed people's expectation.This is that it has a top of the trellis, bracket base and the intermediate supports that is connected above-mentioned top and base because the structure of equipment is a support; The sieve layer constitutes sieve powder case, and the mode with vibration supports near bracket base; Propping up top of the trellis is formed by last air chamber.This design at first provide free space to center running device, and additional device concentrates on the glitch-free each point.According to design of the present invention, keep equipment and equipment clean environment on every side especially easily, according to preliminary test, in general aspect, the design has demonstrated various advantages, and does not have significant disadvantages.In addition, the present invention is doing might to realize many still unexpected improvement aspect the further favourable development, and these development will be narrated below.

By the cereal semolina refiner among the present invention, adopt the couple structure form, respectively there is an intermediate supports at the two ends of a top of the trellis.Sieve powder case can be installed on the structure of bracket base in the mode of vibrating with a spring system.Sieve powder case is as the actual core of refiner, preferably be supported on bracket base near, the space of its top can utilize, to obtain air chamber's optimum structure.The present invention can be used in the air circulation cleaning of material, and the distribution of air reaches optimum efficiency.Because vibrating body is supported on the below, preferably be supported on the base of support, so just can directly get rid of vibration force.In the design of support, it is mainly acted on be to carry various parts.Because the selected operation of semolina and necessary mechanical force all concentrate in their the real work scope, so not only can keep the quality of work, enhance productivity, and the life-span of entire equipment also can prolong owing to can make vibration force fully and the air circulation isolation of components.Therefore, in case air circulation is set up, after perhaps baffle plate being done to locate accordingly, just no longer need automatic adjusting, further adjusting neither be desirable.

An elastomeric element is arranged, preferably be installed between bracket base and the sieve powder case, therefore, cause by vibration and act on reaction force on the equipment, can in equipment self, disappear, because a support and a top of the trellis have constituted an effective counterweight with respect to vibrating mass.Preferably among the embodiment, flexible member can be installed between bracket base and the intermediate supports at another.In another better development form of the present invention, flexible member is arranged between a support intermediate supports and the top of the trellis.Flexible member also can be placed between a bracket base and the top of the trellis.Preferably intermediate supports itself is act as elastomeric element, stable running effect to obtain unexpected peace and quiet.

Of the present invention another preferably among the embodiment, sieve powder case is stretched out in the intermediate supports upper end, the bottom symmetry is inserted in the bracket base, this position between two bracket bases is not subjected to the influence of base.Therefore, on the length of entire equipment, and the top of length, the horizontal space that uses for air circulation is arranged in the inside of equipment.

Because below the sieve powder case that sucks as air, by the following air chamber that a base that supports with mode of vibration in the bottom forms, the air entry between base and the sieve powder case is preferably formed as roughly several centimeters gap.Therefore, for air circulation, and, all played the favourable influence that unanticipated arrives to the sorting of final products.

So far for this reason, people always imagine, and with the equipment of air-breathing mode work, there is not substantial knotty problem in the air-breathing district below fluid bed, and the local problem in the charge air flow can not bring significant effects to the distribution of air.After the present invention occurred, people just recognized; In following air chamber, a sure problem root has been left in the basket always, and reason is in known structure, and above-mentioned distributor chamber is used for distributing various final products simultaneously.According to the imagination in past, the product either way of various granularities is the screenings that land downwards, therefore, for this point, before the present invention, just is not subjected to further attention.In design of the present invention, having proposed one has the clearly following air chamber of regulation, and the product of various granularities can be sent below above-mentioned distributor chamber in by the base sorting.Generally can sub-elect two to four kinds of different products from screenings, its granularity changes with the longitudinally of equipment.For the product of the various granularities of sorting to greatest extent, in another advantageous embodiments of the present invention, base constitutes a centroclinal chute, it the middle part below, the number of products deflector apron is arranged.

If two gathering-devices will being used as two conveyer chutes are arranged in the below of base, and each base has two different outlets in the vertical, just can carry out clear and definite sorting by expectation.Because the groove-shaped depression that meets product orientation plate number is arranged in the bottom, and there is opening the below of above-mentioned depression, dependence product orientation plate, a discharge in two gathering-devices as requested.As chute, each can rotate on a centring point the product orientation baffle plate, and its structure preferably makes discharge area between chute and the base less than the sectional area in air-breathing gap.Because air-flow is always sought the path flow of resistance minimum, so this programme can guarantee corresponding air-flow is provided, and makes the product discharge area avoid the interference of any air-flow.As mentioned above, can directly arrange a two conveyer chute above bracket base, direction of vibration is identical with sieve powder case direction of vibration, and supports with bracket base, and mode of vibration is preferably the same with sieve powder case, but different with the vibration action of sieve powder case.

Another useful development form of the present invention is: from the direction of favorable current, controllable register is placed on the back of air chamber.Favourable according to another preferred development form, air chamber above the sieve layer is a kind of taper tapered shape, the air circulation chamber that some dividing plate forms are wherein arranged, these circular chambers are near the superiors' compass screen surface, each circular chamber all has a controllable register, is arranged in the convergent shape upper end and the transition piece between the sucting passage partly of air circulation chamber.Transition piece preferably is between the upper end and air-breathing collection conduit of air circulation chamber convergent shape part, and is horizontal positioned basically.Above-mentioned conduit preferably as one independently parts be installed on the air circulation chamber, and the structure of similar cyclone is arranged.

According to a kind of favourable development form of the present invention, be suitable for sieve powder case and base are made a vibratile standard component, the most handy vibratile mode in the bottom of two ends is supported on the bracket base.If sieve powder case and two vibration conveyer chute drive with a unbalanced vibrator jointly, do advantage in addition like this, sieve powder case can be fixed with vibrator better, and the action direction of its power can be regulated.For the ease of increasing amplitude, can use vibration component, by a linkage connector, drive two vibration conveyer chutes.Because gathering-device can rely on an end portion supports, the powder case is actuated connecting rod by one and a support is vibrated by sieving, and the movable joint tie point that crankpin end portion supports and gathering-device supports can change, to regulate the amplitude of vibration.

According to a particularly advantageous development form of the present invention, sieve powder case is supported by a spring system, can make the vibration of whole vibrational structure increase by two extra " frees degree ".Preferably there be rubber spring, steel spring or the flexible rubber connector of hollow in spring system.So just, vibrator and sieve powder case can be fixed, and the action direction of power still can be regulated.Because with respect to the performance of the action direction of the power of resonator device center of gravity, so the direction of vibration and intensity can be regulated on demand at the head and the afterbody of sieve powder case.When supporting gathering-device with a vibratile linkage, gathering-device is preferably vibrated by the adjustable connecting rod of actuating that is connected with sieve powder case.The vibration of sieve powder case is not depended in the selection of amplitude, though vibration is all produced by same unbalanced vibrator.

Hereinafter will do more detailed narration with regard to various non-limiting examples of the present invention and accompanying drawing thereof, accompanying drawing thes contents are as follows:

The vertical view of equipment that Fig. 1 the present invention proposes.

Fig. 2 is along the profile of II among Fig. 1-II line.

The schematic diagram of equipment that Fig. 3 the present invention proposes and support thereof and a top of the trellis.

Increase the schematic diagram of vibrating mass on Fig. 4 Fig. 3.

The last air chamber schematic diagram of the equipment that Fig. 5 is proposed by the invention.

Fig. 6 is along the profile of Fig. 5 IV-IV line.

Another embodiment of Fig. 7 Fig. 5.

The top view of Fig. 8 Fig. 7.

Fig. 9 uses the summary form of the sieve powder case support member of flexible rubber connector.

Figure 10 is installed in the sieve powder case on the spring and is installed in the associating support member (summary signal) of the vibration conveyer chute on the linkage connector.

Figure 11 changes the generalized schematic of transporting the whole bag of tricks of chute power transmission to vibration from sieve powder case.

To more being described in detail of various embodiment:

At first narrate Fig. 1 and Fig. 2, these two figure are the same with other accompanying drawings, all represent a kind of so-called pair of formula equipment, and it comprises two relatively independent cereal semolina refiners, and Fig. 2 clearly represents.These two equipment are arranged in the both sides of intermediate support structure independently.

Can see the material inlet 1 of equipment, bottom-right oversize outlet 2 from the upper left side of Fig. 1.Three sieve layers that stack up and down of label 3 expressions.Gathering-device 5(Fig. 2 outside an interior gathering-device 4 and one is arranged below sieve layer 3), be used to collect screenings.Each gathering- device 4 or 5 all has two outlets 6,7.A sieve of each common formation of group sieve layer powder case 8(Fig. 2).Therefore, according to the embodiment shown in the figure, each sieve powder case 8 can select two outlets 2 to discharge oversize, discharges screenings with four outlets 6,7.An end portion supports 12(of sieve powder case 8 usefulness Fig. 1), by vibrating elements and hollow rubber spring 13, be supported in vibratile mode on the base 10 of support 9.Have a unbalanced vibrator 14 and end portion supports 12 fixing, direction of vibration (referring to the arrow among Fig. 1 15) can pass through unbalanced vibrator 14 to regulate with the method for rotation on a tubular cruciform joint 16.In addition, known to, uneven intensity of force can be regulated by regulating corresponding uneven counterweight 17.Two unbalanced vibrators 14 are fixed on two cruciform joints 16, utilize the wiring of electrical equipment to make it to do mutual reciprocal rotation.So just offset their horizontal unbalanced moments, and obtained the pure linear extensional vibration of pressing arrow 15 directions.Cover 18 covers in the outside of unbalanced vibrator 14, for simplified structure, makes it to become the part of vibrator.

Gathering-device 4 constitutes the chute of vibration conveyer, and the two ends of each chute all are placed in rubber base and support on 19 (Fig. 1).The vibration power of gathering-device 4 is transmitted by connecting rod 20, and connecting rod 20 connects vibration end portion supports 12 and supports 19.The amplitude of selection or adjusting gathering-device 4 because acting on the position height that supports on 19, connecting rod 20 can change, so can not sieved powder case effect on amplitude.Support 9 directly carries all not vibrating mass, and vibrating mass is installed on the lower member of support.Each end at two supports all has an intermediate supports 21(Fig. 2).Insert in the understructure extension of support 21.As shown in Figure 2, intermediate supports 21 slightly reaches the top of the highest sieve layer, a carrying top of the trellis 11, and last air chamber 22 is formed by a top of the trellis 11 substantially.There is the shape of upwards shrinking gradually last air chamber, and is divided into the air circulation chamber 24 of 16 isolation on its length direction with dividing plate 23.As shown in Figure 5, dividing plate 23 extends near top sieve layer place.Dividing plate 23 and the selection of sieving interlamellar spacing require to make it to be a bit larger tham forever the maximum ga(u)ge S that material stack layer may reach.

On the upper inclined surface of air chamber 22, transparency window 25(Fig. 2 is arranged on its whole length), thereby can utilize electric light source 26, sieve the flow regime of layer 3 upper materials from the external control of equipment.Between the upper end of the air chamber 22 among Fig. 5 and Fig. 6 and the air-breathing collection conduit 27 controllable register 28 is arranged, can regulate according to concrete requirement with knob 29 to air.

Fig. 3 represents the not foundation structure of vibrating mass (supporting structure) of this equipment, has drawn two kinds of embodiment among the same figure.Wherein a kind of feasible embodiment is between bracket base 10 and intermediate supports 21, inserts an elastomeric element 30.According to second kind of embodiment, between an intermediate supports 21 and a top of the trellis 11, lay an elastomeric element 31.In first kind of embodiment, an intermediate supports 21 and a top of the trellis 11 form a not damping body of vibrating mass jointly.In second kind of embodiment, only form damping body with a top of the trellis 11.According to another kind of embodiment, intermediate supports 21 can be made with the light structures form, to embody elastomeric element.From Fig. 2 and 4, can also see another particularly advantageous embodiment.Sieving powder case 8 and exporting between 6,7, a vibratile base 32 is arranged, support by bracket base 10.On whole length of base 32, some depressions 33 are arranged, utilize the long baffle plate of product or chute 34(Fig. 4 in the bottom), towards inside and outside gathering-device orientation.The number of chute 34, with roughly with identical being advisable of number of relative air circulation chamber 24.As can be seen, working air current flows to by the air-breathing gap 35 of both sides.These measures have some advantages, and at first, the inflow of air-flow separates with the discharge of product fully.Product is discharged and is carried out below base 32, and does not have air-flow here.The avris charge air flow can guarantee that then the product stream that drops on the base 32 is folded to.Guide in the middle of the base, and chute 34 is just in the centre of base, so just concentrate towards inside.Another favourable part is that product stream is entered the gathering-device 4 of vibration or 5 penetralia by chute 34 guiding, discharges from exporting 6 or 7.In addition, product stream also has certain self-cleaning effect.According to prior art, controllable register is directly installed on gathering-device 4 or 5.Therefore half part of gathering-device often is capped for a long time, and the result just may form the dust arrester that cuts off below gathering-device.Another important advantage is, screenings can be very exactly on request granularity specification sorting, reason is the interference of having eliminated longitudinal air flow.

When coarse grain refiner of the present invention running, vibrator 14 energisings, so sieve powder case 8, base 32 and gathering- device 4,5 equipment vertically on, carry out the vibration action of predesignating.Simultaneously, entire equipment is in air-breathing collection conduit 27, or all sliding part and baffle plates are all adjusted by sorting function temporarily in the vacuum state that causes of the getter device that is connected with air-breathing collection conduit, and material enters from import 1, falls immediately on the top sieve layer 3.Because the vibration effect of material, the sieve layer tilts to outlet 2 directions from import 1, and the air-flow by sieve layer 3 etc., the motion of material on compass screen surface is as fluid (fluidisation).The basic function of semolina refiner is actually by screening process and constitutes, so air-flow can not be too strong, causes wholely material bedly all to float on compass screen surface.In fact, the main effect of air is to make material loose, evenly distributes on whole compass screen surface.

According to preset task, material can be divided into coarse grain, middle grain and particulate perhaps are divided into edible coarse grain and middle grain etc.Under latter event, for example, can guide the first six chute into gathering-device 4, back ten chute guiding gathering-devices 5.In this case, two kinds of screenings are final products, can supply with corresponding storage place or consumer, the oversize of outlet 2 is sent grinding system back to and is done further to grind or pulverize, and arrives second semolina refiner having made corresponding layout then and carries out selected.On second equipment, need to select required screen cloth specification according to concrete work, these do not belong to scope of the present invention.

The semolina refiner Once you begin turns round, and sees that machine workman's function just begins thereupon, and such as the operational situation of valuator device, the product that reaches obtaining carries out the evaluation of quality and quantity.

For this purpose, be with lamp 26(Fig. 2) turn on, the whole space illumination of air chamber.As if material on the compass screen surface can see if one or several air circulation is indoor the phenomenon of boiling water boiling being arranged from fenestra 25 at the indoor mobility status of each air circulation, so just should use the air capacity in the concrete circular chamber 24 of controllable register 28 restrictions.On the contrary, if on individual other some accumulation is arranged, so corresponding local air amount just should increase.If the Flow of Goods and Materials state is satisfied fully, product mix (exit) does not contain the product that belongs to screenings, will reexamine the quality of screenings so, then according to concrete condition, chute 34 correspondingly is fixed on the position of gathering- device 4,5 discharges.

In Fig. 1, can seeing, in each gathering- device 4,5, can from two different outlets 6,7, select an outlet for use, therefore can sieve and sub-elect four kinds of different products the powder case from each.

Fig. 7 and 8 has represented a kind of advantageous embodiments, can replace the example among Fig. 5 and Fig. 6.In the example of Fig. 7 and 8,, and replace sliding part without controllable register 28.These slips can make air requirement regulate more accurately on sliding position.According to the rotation of knob 29, can be in the cross section that the sliding part opening part is changed in proportion.Using sliding part also to have the another one advantage, is exactly the free cross-sectional area of air-breathing collection conduit 27, is not subjected to the influence of sliding part different opening position.

Particularly in the example of Fig. 7 and 8, found that the sectional area of air-breathing collection conduit 27 can keep constant on air-flow direction.

Fig. 9 represents to have the support of the resonator device of elastomer connector 42, and this support can be 40 to realize with a spring.

Can recognize that from Fig. 1 unbalanced vibrator 14 can be around a lateral shaft 16 rotation, thereby the action direction 41 of power can regulate on demand, as shown in arrow 41.If the action direction of power, generally can obtain the even vibration of whole sieve layer by the center of gravity S of resonator device.If but the action direction of power does not pass through center of gravity S, just so can be according to specific requirement, setting is equivalent to the vibration of angle α near import 1, and 2 places are provided with the vibration that is equivalent to angle β in outlet.

Figure 10 and the another kind of particularly advantageous embodiment of 11 expressions.In this case, the vibratile mode of sieve powder case, being installed in spring is on 40 or steel springs 42, as the free vibration device.The unbalanced vibrator that can regulate by the action direction of power is installed on the end portion supports 12, by using two vibrators 14 that direction of vibration is opposite, obtains quite pure linear oscillator, shown in Fig. 9 or 1.The vibratile mode of gathering- device 4,5 usefulness is installed in and supports on 19, separates with sieve powder case 8.End portion supports 12 is connected with support 19 by connecting rod 20.Therefore, but be the vibration of 40 resonator devices that support, can be delivered on the gathering- device 4,5 by connecting rod 20 by spring.Connecting rod 20 can be at differing heights position X1, X2 ... X6 is last fixing with support 19.So just, might on the basis that unbalanced vibrator 14 drives,, impel gathering- device 4,5 that bigger amplitude variations is arranged in the vertical by selecting the corresponding connecting rod route.This has just caused a kind of unexpected simple structure.For " screening " of reality effect, the sieve layer is done a kind of small amplitude motion, and gathering-device is equivalent to the effect of vibratory conveyer chute, is supporting suitably hinged on 19 by connecting rod 20, realizes a kind of vibration one sling movement of large amplitude.The combination of this free vibration device one connecting rod vibrator proved already, had unexpected good operation effect.

Claims (22)

1, a kind of equipment that is used for selected cereal semolina has some sieve layers 3 that stack up and down, can vibrate with at least one unbalanced vibrator 14; At one end establish an import; The other end is established an outlet 2, is used as the inflow of material and the discharge of oversize respectively; The siftage collecting device 4,5 that has adjustable baffle plate; And by the air circulation of sieve layer 3 above air chamber 22; The air chamber is in air-breathing collection conduit 27, and conduit available adjustment baffle plate 28 is regulated, and the invention is characterized in that device structure is a support 9, and it has a top of the trellis 11, bracket base 10 and the intermediate supports 21 that is connected described top and base; Sieve layer constitutes a sieve powder case 8, and with vibratile mode be supported on bracket base 10 near, prop up a top of the trellis 11 and form by last air chamber 22.

2,, it is characterized in that respectively there is an intermediate supports 21 at the two ends of support according to the formed equipment of claim 1.

3, according to the equipment of claim 1 or 2, it is characterized in that sieving spring of powder case 8 usefulness is 40 supports.

4,, it is characterized in that spring is 40 the rubber spring 13 of hollow to be arranged, steel spring 42 or flexible rubber connector 42 according to the equipment of claim 3.

5, according to the equipment of claim 3, it is fixing to it is characterized in that sieving powder case 8 and unbalanced vibrator 14, and its forced direction can be regulated.

6, according to the equipment in the claim 1, it is characterized in that gathering-device 4,5 can be by drive link 20 and a support 19, by an end portion supports 12 vibrations of sieve powder case, connecting rod 20 on the end portion supports 12 and the flexible connection point on the gathering-device can change, to regulate the amplitude of vibration.

7, according to the equipment in the claim 1, it is characterized in that intermediate supports 21 stretches out sieve powder case 8 on short transverse, the bottom symmetry of intermediate supports is inserted in its bracket base 10, and this position in the middle of two bracket bases is not subjected to the influence of base 10.

8, according to the equipment in the claim 1, it is characterized in that, below sieve powder case air suction inlet, by a following air chamber that forms with the base 32 of mode of vibration support in the bottom.

9,, it is characterized in that forming air and sucking gap 35 between base 32 and the sieve powder case 8 according to the equipment of claim 8.

10, according to the equipment of claim 8, it is characterized in that base 32 constitutes a centroclinal conveyer chute 34, there is the number of products deflector apron below in the middle.

11, according to the equipment of claim 10, it is characterized in that the groove-shaped depression that conforms to product orientation baffle plate number is arranged on the base 32, the lower opening of depression can be by the product orientation plate to two gathering-devices, 4,5 discharges.

12, according to the equipment of claim 10, it is characterized in that the product orientation plate constitutes the chute form, each bar chute can rotate around a pivot, owing to rotate like this, makes discharge area between chute 34 and the base 32 suck the sectional area in gap less than air.

13, according to the equipment in the claim 1, it is characterized in that having the two conveyer chutes 34 that can do equidirectional vibration with sieve powder case 8, be supported on the bracket base 10, but with sieve powder case 8 and separate.

14, according to the equipment in the claim 1, it is characterized in that controllable register 28 on air-flow direction, be arranged in 22 back, air chamber.

15, according to the equipment in the claim 1, it is characterized in that there is a tapered conical shape air chamber 22 above the sieve layer, air circulation chamber 24 with some iris types, circular chamber is near the superiors' compass screen surface, in the upper end and the transition piece between the sucting passage of each air circulation chamber convergent shape part, a controllable register 28 is arranged.

16, according to the equipment of claim 15, it is characterized in that the upper end of convergent shape part of air circulation chamber 22 and the transition piece between the sucting passage, be horizontal positioned substantially.

17,, it is characterized in that air-breathing collection conduit as individual components, is installed in the air chamber 22, and the structure of cyclone shape is arranged according to the equipment of claim 14 or 15.

18, according to the arbitrary equipment in the claim 8 to 13, the structure that it is characterized in that sieving powder case 8 and base is a vibratile standard component.

19,, it is characterized in that flexible member is placed between a bracket base 10 and the top of the trellis 11 according to the equipment in the claim 1.

20,, it is characterized in that flexible member 31 is placed between the intermediate supports 21 of bracket base 10 and support according to the equipment in the claim 1.

21, according to the equipment in the claim 1, the structure that it is characterized in that intermediate supports is a flexible member.

22,, it is characterized in that flexible member 31 is arranged between the intermediate supports 21 and a top of the trellis 11 of support according to the equipment in the claim 1.

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