CN206593355U - The hoisting mechanism of snowmaker and the snowmaker including it - Google Patents

Abstract

The utility model provides the hoisting mechanism and snowmaker including it of a kind of snowmaker, including be close to set on the outside of inner bag upper surface the first reinforced support, be close to set on the inside of the housing upper surface of snowmaker and aligned with first reinforced support in symmetrically arranged second reinforced support up and down, sequentially pass through the setting of the two reinforced supports along the vertical direction sleeve pipe, set along the vertical direction through the sleeve pipe lengthenings screw rod, be arranged on the fixed support on the part on the outside of snowmaker of the lengthening screw rod.Can be to snowmaker to set the intensity at hoisting mechanism to strengthen by setting up the first reinforced support, the second reinforced support and sleeve pipe between the housing and inner bag of snowmaker, the installation steadiness of hoisting mechanism can so be strengthened, and then strengthen the installation steadiness of snowmaker.

Description

The hoisting mechanism of snowmaker and the snowmaker including it

Technical field

The utility model is related to a kind of hoisting mechanism of snowmaker and the snowmaker including it.

Background technology

Snowmaker is the principle landed using snowflake, and water and air is mixed and produces snowflake under appropriate conditions And it is used for the place of the various needs snow that fail to snow.People realize artificial snow, the principle of snowmaker by snowmaker It is：A special nozzle or spray gun are injected water into, pressure-air is touched there, current are divided into small by pressure-air Particle is simultaneously sprayed into the extraneous air of cold, and these small water droplets are frozen into ice crystal before falling earthward, that is, it is seen that Snowflake.

At present, the form of snowmaker is broadly divided into two kinds：The first is that ice maker produces flake ice, then using flake ice as Raw material artificial snow-making, its workflow is：First pass through ice maker and flake ice is made in water, then by deicing the piece made Ice is ground into powder, and finally powdered ice crystal is sent out by air conveying system.Another is to use traditional water under high pressure Artificial snow-making is mixed with air, its workflow is：Water under high pressure from high-pressure hydraulic pump exists with the pressure-air from air compressor Mixed at double feed inlet nozzle, take away heat using the volumetric expansion after natural evaporation and air delivery nozzle and droplet is frozen into ice It is brilliant.

Utility model content

Main purpose of the present utility model is to provide a kind of snowmaker for the installation steadiness that can strengthen snowmaker Hoisting mechanism and the snowmaker including it.

The utility model provides a kind of hoisting mechanism of snowmaker, is received in the housing of the snowmaker and inner bag is housed, The hoisting mechanism includes being close to the first reinforced support of setting on the outside of the inner bag upper surface, is close to the housing of the snowmaker Set and aligned in symmetrically arranged second reinforced support up and down, along the vertical direction with first reinforced support on the inside of upper surface The sleeve pipe of the two reinforced supports setting is sequentially passed through, the lengthening screw rod of sleeve pipe setting is run through along the vertical direction, this is arranged on Lengthen the fixed support on the part being located on the outside of the snowmaker of screw rod.

Using this structure, by set up between the housing of the snowmaker and the inner bag first reinforced support, Second reinforced support and sleeve pipe can be to the snowmakers to set the intensity at hoisting mechanism to strengthen, such energy Enough strengthen the installation steadiness of the hoisting mechanism.In addition, by setting the fixed support to strengthen the lengthening screw rod Positioning precision, can also strengthen the installation rigidity and intensity of the hoisting mechanism.

It is preferred that, it is provided with the inner bag at the top of heat exchanger, the heat exchanger and is provided with crossbeam, the bottom of the lengthening screw rod The crossbeam is fastened on after sequentially passing through the housing of the snowmaker, described sleeve pipe, the inner bag, the crossbeam from top to bottom On, also, the screw rod that lengthens tightened together by the upper surface outside of the first fastener and the housing of the snowmaker.

Using this structure, on the one hand the hoisting mechanism realizes that the installation of snowmaker is fixed, while can also realize institute State heat exchanger and be securedly mounted to the top of the snowmaker, in such manner, it is possible to reduce the amount of parts of the snowmaker, Jin Erjian Change the structure of snowmaker.

It is preferred that, sealing gasket is provided between the crossbeam and the inner bag, the bottom of the lengthening screw rod is from top to bottom Sequentially pass through be fastened on after the housing of the snowmaker, described sleeve pipe, the inner bag, the sealing gasket, the crossbeam it is described On crossbeam.

Using this structure, improved by setting the sealing gasket to be conducive on the inside of the heat exchanger and inner bag upper surface Sealing effectiveness.

It is preferred that, the fixed support is tightened together with the lengthening screw rod by the second fastener.

Using this structure, because the fixed support is tightened together with the lengthening screw rod by nut, on the one hand, The steadiness of both connections can be strengthened, on the other hand, the convenient regulation fixed support setting relative to the lengthening screw rod Height is put, to meet installation requirement.

It is preferred that, it is coated with screw thread fastening glue with the crossbeam place of being engaged in the lengthening screw rod.

Using this structure, be conducive to improving the steadiness that the lengthening screw rod is connected with the crossbeam.

It is preferred that, first reinforced support, second reinforced support and the fixed support are square arrangement.

The utility model additionally provides a kind of snowmaker, including it is foregoing in any described snowmaker hoisting mechanism.

Brief description of the drawings

Fig. 1 is the front view of snowmaker；

Fig. 2 is the rearview of snowmaker；

Fig. 3 is the right view of snowmaker shown in Fig. 1；

Fig. 4 is the top view of snowmaker shown in Fig. 3；

Fig. 5 for snowmaker shown in Fig. 4 A-A to sectional view；

Fig. 6 is the sectional view of the B-B direction of snowmaker shown in Fig. 3；

Fig. 7 for snowmaker shown in Fig. 3 C-C to sectional view；

Fig. 8 for snowmaker shown in Fig. 3 D-D to sectional view；

Fig. 9 for snowmaker shown in Fig. 4 E-E to phantom；

Figure 10 for snowmaker shown in Fig. 4 F-F to phantom；

Figure 11 for snowmaker shown in Fig. 4 F-F to phantom；

Figure 12 is the enlarged drawing at G in Figure 11；

Figure 13 is the enlarged drawing at H in Figure 11；

Figure 14 for snowmaker shown in Fig. 3 C-C to phantom；

Figure 15 is scheme of installation of the single fan assembly on snowmaker；

Figure 16 is the right view of single fan assembly shown in Figure 15；

Figure 17 is the schematic diagram of single-nozzle elbow component；

Figure 18 is the top view of single-nozzle elbow component shown in Figure 17；

Figure 19 for single-nozzle elbow component shown in Figure 18 I-I to sectional view.

Embodiment

Snowmaker described in the utility model is described in detail referring to Fig. 1~Figure 19.

As shown in Figure 1 to 4, snowmaker described in the utility model mainly includes a base 1 and configuration on the base 1 Snowmaker main body 2, wherein, base 1 is substantially open top and the channel-shaped part that is square, and snowmaker main body 2 is that cross section is in The chest portion of square longitudinal section (as shown in figure 3, i.e. by the plane of above-below direction before and after snowmaker) shape substantially in a rectangular trapezoid Part, is made up of the housing of base 1 and snowmaker main body 2 in the housing of whole snowmaker, the present embodiment, and the housing of snowmaker is by glass Glass steel texture in snowmaker main body 2 into as shown in figure 5, receive equipped with the spaced inner bag of housing with snowmaker main body 2 3, heat exchanger 4 is provided with inner bag 3, the polyurethane of insulation effect has been filled between the housing and inner bag 3 of snowmaker main body 2 Foamed material layer.(such as Fig. 3 of door 11 connected to be behave affectedly with the receipts that inner bag 3 is formed is opened up in the left side of snowmaker main body 2 It is shown).

As shown in Fig. 1~Fig. 5, Fig. 7, Fig. 9~Figure 10, at the top of snowmaker provided with the overall lifting set in frame-type Component, as shown in Fig. 9~Figure 10, hanging component mainly include being close to set on the outside of the upper surface of inner bag 3 and the arrangement that is square the One reinforced support 71, the housing upper surface inner side setting for being close to snowmaker main body 2 are simultaneously aligned with foregoing first reinforced support 71 In symmetrically arranged second reinforced support 72 up and down, corner-polyurethane of the first reinforced support 71 is sequentially passed through along the vertical direction Four sleeve pipes that the corner for the second reinforced support 72 that the corner of foamed material layer-and the first reinforced support 71 is aligned is set 73rd, the four lengthening screw rods 74 set along the vertical direction through this four sleeve pipes 73.The table in the top of heat exchanger 4 and inner bag 3 Sealing gasket is also equipped between face, the sealing gasket is to seal the gap between the upper surface of heat exchanger 4 and the inner surface of inner bag 3. Specifically, positioned at the crossbeam 41 at the top of heat exchanger 4, the sealing gasket being placed between heat exchanger 4 and inner bag 3, inner bag 3, snowmaker The through hole aligned with the set location of four sleeve pipes 73 is offered on the housing of main body 2 respectively, the lengthening screw rod being vertically arranged Housing-sleeve pipe 73- inner bags 3- that 74 bottom sequentially passes through snowmaker main body 2 from top to bottom is placed between heat exchanger 4 and inner bag 3 Sealing gasket-be located to be fastened on after the through hole aligned on the crossbeam 41 at the top of heat exchanger 4 be coated with screw thread fastening glue In through hole on crossbeam 41, it is close to outer side surface thereon in the housing upper of snowmaker main body 2 and is sequentially provided with to lengthening screw rod 74 The flat shim and high nut (constituting the first fastener) fastened.

As shown in Fig. 9~Figure 10, four middle and upper parts for lengthening screw rods 74 provided with connecting consolidating for they and the arrangement that is square Fixed rack 75, the fixed support 75 is tight to realize also through nut (constituting the second fastener) with lengthening the place of being engaged of screw rod 74 Gu.Mounting hole is further opened with fixed support 75, is engaged by fasteners such as bolts with the mounting hole and by fixed support 75 are arranged on the mounting and fixing bracket at the top of skiing shop, and the thus installation to realize snowmaker is fixed.

In the utility model, heat exchanger 4 is made up of plate-pipe heat exchanger of the prior art, and it is included along the longitudinal direction The polylith heat exchanger plates that are vertically arranged and are parallel to each other in the lateral direction, many of this polylith heat exchanger plates are sequentially passed through in left-right direction Individual heat exchanger tube, the U-tube of the multiple tube ends of connection are constituted.Heat exchanger 4 mainly passes through the hanging component shown in Fig. 9~Figure 10 The top of snowmaker is fixed on, is referred to described by Fig. 9~Figure 10.Overall heat exchanger 4 is in cube, it in inner bag 3 substantially along It is centrally located on fore-and-aft direction, and it is arranged on the whole left and right directions of inner bag 3, that is, the left and right ends of heat exchanger 4 are abutted On the inner surface of left and right two of inner bag 3.Specifically, as shown in figure 11, in the bottom of inner bag 3 in separately being set on fore-and-aft direction There are parallel setting and a pair of the second supports 31 set along whole left and right directions, the second support 31 is L-shaped by longitudinal section Part is constituted, wherein, the bottom of the vertical portion of second support 31 is fixed on the bottom of inner bag 3 or is formed at one with the bottom of inner bag 3 Body, the horizontal component of a pair of second supports 31 is in the longitudinal direction mutually away from setting.With a pair of foregoing a pair of second supports 31 1 Should be provided with a pair of first supports 32, also the part L-shaped by longitudinal section is constituted the first support 32, positioned at the first support of homonymy 32 horizontal component aligns setting with the horizontal component of second support 31, and both is linked together by trip bolt；The The vertical portion of one support 32 is set along the vertical direction.

Especially, as shown in figure 12, provided with the between the horizontal component of both second support 31 and first support 32 In two seals 34, the present embodiment, second seal 34 be made up of flexible materials such as rubber, silica gel, longitudinal section be in strip The sealing gasket of shape, sealing effect of the second seal 34 to improve both touching positions of second support 31 and first support 32 Really.As shown in figure 13, first seal 35 is configured with the top of the vertical portion of first support 32, the first seal 35 by Flexible material (for example, rubber, silica gel etc.) is made, in the present embodiment, and first seal 35 includes the positioning that a longitudinal section is in n shapes Portion 351 and be formed at one with the location division 351 and longitudinal section be in O shapes deformations 352, first seal 35 passes through location division 351 are plugged on the top of the vertical portion of first support 32, and the deformations 352 of first seal 35 are clamped in heat exchanger 4 and Between one support 32, carried out by the gap between the heat exchanging device 4 of deformations 352 and the vertical portion of first support 32 close Envelope.By upper, inner bag 3 is separated into positioned at the rear side of heat exchanger 4 by heat exchanger 4, multiple internal bladder supports and correspondence seal Air-inlet cavity and the air-out chamber positioned at the front side of heat exchanger 4, simultaneously as the bottom of heat exchanger 4 and the vertical portion of first support 32 Between by first seal 35 realize seal, between the top of heat exchanger 4 and inner bag 3 pass through sealing gasket realize sealing, heat exchange Sealing is also close in the left and right sides of device 4 between inner bag 3, i.e., the both sides up and down and the left and right sides of heat exchanger 4 are between inner bag 3 Encapsulation process has been carried out, can so force air-flow to flow through air-inlet cavity, heat exchanger 4, air-out chamber successively, in such manner, it is possible to protect Heat exchange is carried out during card airflow passes heat exchanger 4.

As shown in figure 5, thus the bottom of inner bag 3 towards setting is sunken into one water spilage tray of the bottom of inner bag 3 formation, in the water receiving One heater 36 of in the box that is, bottom of inner bag 3 setting, as shown in fig. 6, in the present embodiment, heater 36 is in wave by one The electric heating tube of setting is constituted.As shown in Fig. 1~Fig. 3, Fig. 7, Figure 14, installed on the right side of inner bag 3 in the middle part of fore-and-aft direction One is downwardly inclined the drainpipe 37 of setting, and upper end and the inner bag bottom of the drainpipe 37 are that water spilage tray is connected, and its lower end is passed through successively It is extend out to after wearing inner bag 3, the heat-insulation layer formed by polyurethane foam material, the housing of snowmaker main body 2 outside snowmaker main body 2 Portion, especially, the bottom of inner bag 3 that is, water spilage tray is tilted by the side away from drainpipe 37 towards the side close to drainpipe 37 Set；One blowing device 33 is installed in the lower section of foregoing drainpipe 37 on the right side outer surface of base 1, the blowing device 33 Air outlet is placed in the underface of the discharge outlet of drainpipe 37 just.Heat exchanger 4 after continuous firing its surface can frosting, when changing When hot device 4 itself carries out defrosting, the heater 36 of water spilage tray bottom is opened, and is dissolved by the heater 36 because of heat exchanger 4 Defrosting and the water or ice flowing in water spilage tray, thus produced water will be discharged along drainpipe 37, flow down by drainpipe 37 Water is dispelled immediately by blowing device 33, prevents that ice is formed at the discharge outlet of drainpipe 37 to stick together or ice piton.

As shown in Fig. 2~Fig. 8, three fan assemblies 5 being arranged side by side in left-right direction are installed on rear side of snowmaker, As shown in Figure 15~Figure 16, single fan assembly 5 includes an axial flow blower 51, the axial flow blower 51 is arranged on into snowmaker Blower fan fixed support 52 on the housing of main body 2, configuration the air inlet of axial flow blower 51 protective cover 53.The present embodiment In, axial flow blower 51 is rounded in the section on its axial direction, in the air inlet side of axial flow blower 51 provided with one and its The cylindrical portion 511 of portion's connection, constitutes the air inlet of axial flow blower 51, in the circle of the cylindrical portion 511 by the opening of the cylindrical portion 511 Symmetrically four mounting holes are offered in perimeter surface.Blower fan fixed support 52 be one it is overall be in annular bracket component, it vertical Section is L-shaped, and the horizontal component of blower fan fixed support 52 is engaged by screw and is fastened on the mounting hole in cylindrical portion 511 On axial flow blower 51；The internal preset in the housing of snowmaker main body 2 is close to the reinforcing plate 54 of its inner surface setting, is close in advance The inner surface setting of reinforcing plate 54 has nut, and when installing axial flow blower 51, the axle stream of blower fan fixed support 52 will be provided with first Blower fan 51 is seated to correspondence position and the vertical portion of blower fan fixed support 52 is close to the housing outer surface of snowmaker main body 2 and sets Put, then bolt is sequentially passed through to vertical portion, the housing of snowmaker main body 2, the foregoing reinforcing plate 54 of blower fan fixed support 52 And be finally tightened on and be close on the nut of the inner surface setting of reinforcing plate 54, the installation for being achieved in axial flow blower 51 is fixed.This reality Apply in example, protective cover 53 is the metal net shaped part corresponding with the air inlet of axial flow blower 51, it passes through the fasteners such as screw At the opening to constitute air inlet of the cylindrical portion 511 of axial flow blower 51, it can prevent larger by protective cover 53 Foreign matter enter axial flow blower 51 in.

As shown in Figure 1 and Figure 5, six be arranged side by side in left-right direction are provided with close to its bottom in the front side of snowmaker Elbow-for-nozzle component 6, as shown in Figure 17~Figure 19, single-nozzle elbow component includes a vertical tube part 61, the setting being vertically arranged In the bottom of vertical tube part 61 and communicate therewith setting elbow 62, configure outside circumference of the vertical tube part 61 with the phase joining place of elbow 62 Flange 63 on edge, foregoing three, which can be formed at, integrally may also be the assembling of three individual components and integrates.Wherein, flange 63 installation positioning actions, it is arranged on the housing bottom of snowmaker main body 2 using fasteners such as screws, and then realizes single spray Installation of the mouth elbow component on snowmaker is fixed；Vertical tube part 61 is mainly made up of straight-run of pipe, and the vertical tube part 61 is integrally placed at Between inner bag 3 and the housing of snowmaker main body 2, its top is through on the inside of it and with connecting inside inner bag 3 by the outside of inner bag 3 Lead to, that is, the top of vertical tube part 61 is connected with foregoing air-out chamber；Elbow 62 is made up of elbow of the prior art, and it is integrally placed at The front portion of base 1, its one end is connected with the bottom of vertical tube part 61, and it runs through before base 1 in contrast to one end of vertical tube part 61 Surface is set and stretched out from the preceding surface, and the snow output spot of snowmaker is constituted by the opening in contrast to the side of vertical tube part 61 of elbow 62, In addition, also coating one layer of heat-insulation layer 64 formed by polyurethane foam material in the outer surface of elbow 62.Especially, as Figure 17~ Shown in Figure 19, a through hole 651 is opened up in the rear side of elbow 62, a spray to be positioned to nozzle 66 is set in the through hole In mouth location division 65, the present embodiment, axially arranged straight-run of pipe of the nozzle location division 65 by edge perpendicular to vertical tube part 61 is constituted, One end being in contact with the wall portion of elbow 62 of this straight-run of pipe is set in open, in its end shape in contrast to the wall portion of elbow 62 Into a tapered opening 652, also, on the internal face of straight tube a stage portion is formed in the side close to the tapered opening 652 653, nozzle 66 is housed in nozzle location division 65 and is connected to the place side of tapered opening 652, and nozzle is limited by stage portion 653 66 relative to the place side of tapered opening 652 displacement.Nozzle location division 65 is preferably formed at one with elbow 62, reason of being not difficult Solution, both can be also made up of two individual components, and when using the latter's such case, nozzle location division 65 is via aforementioned through-hole 651 are inserted on elbow 62.

In addition, as shown in figure 8, be additionally provided with point water box 67 and electrical appliance kit 68 in base 1, this point of water box 67 are to by artificial snow-making The supply channel of machine is divided into six water supply branch roads, and this six water supply branch roads are corresponded with foregoing six elbow-for-nozzle components 6, often Individual water supply branch road is connected by pipe fitting with the nozzle 66 of single-nozzle elbow component 6.When snowmaker works, in heat exchanger 4 The cold air formed after generation heat exchange flows through the snow output spot discharge from snowmaker after vertical tube part 61, elbow 62 successively；Meanwhile, Current enter nozzle 66 by water supply branch road, and via the spouting formation high-pressure water mist of the nozzle 66, this partial high pressure water smoke is flowed Cold air instantaneous temperature reduction through elbow 62 condenses into snowflake, these snowflakes via elbow 62 in contrast to vertical tube part 61 opening (also That is snow output spot) spray out.

In addition, hanging component 7 is close at the top of snowmaker main body 2 is additionally provided with an electric-controlled box 8 and various pipeline valves Door, is provided with the control unit of snowmaker, for example and without limitation, the control unit is by being integrated with a variety of controls in electric-controlled box 8 The printed circuit board (PCB) of circuit processed is constituted, control unit and aforesaid heat exchangers 4, heater 36, blowing device 33, axial flow blower 51st, water knockout drum 67, nozzle 66, the difference signal connection of electric-controlled box 8, when snowmaker is run, control unit is according to control set in advance Processing procedure sequence sends control instruction to foregoing all parts, them is entered working condition.

Described with reference to said structure, reference picture 1- Figure 19 is easily described to the course of work of snowmaker.

The control unit of snowmaker is according to control program set in advance respectively to axial flow blower 51, heat exchanger 4, water knockout drum 67th, nozzle 66, which sends control instruction, makes them respectively enter running status.In the presence of axial flow blower 51, extraneous air is successively Protective cover 53, axial flow blower 51, the air-inlet cavity in inner bag 3, heat exchanger 4 are flowed through, becomes cold after carrying out heat exchange in heat exchanger 4 Air, the cold air is flowed through after the air-out chamber of inner bag 3, vertical tube part 61, elbow 62 successively after the discharge of heat exchanger 4, by snowmaker Snow output spot discharge.

Outside is supplied to the current of snowmaker to be supplied to point water box 67 via the water circuit system of snowmaker, is divided into by point water box 67 Six water supply branch roads, current enter nozzle 66 by water supply branch road, and via the spouting formation high-pressure water mist of nozzle 66, this part is high The cold air instantaneous temperature reduction that pressure water smoke is flowed through elbow 62 condenses into snowflake, and these snowflakes are via the snow output spot sprinkling of snowmaker Go out.

When heat exchanger 4 itself carries out defrosting, control unit sends control to heater 36, blowing device 33 respectively and referred to Order makes them enter running status, is dissolved by heater 36 and flow to the water in water spilage tray because of the defrosting of heat exchanger 4, thus institute The water of generation will be discharged along drainpipe 37, and the water flow down by drainpipe 37 is dispelled immediately by blowing device 33.

Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model Within the scope of shield.

Claims (7)

1. a kind of hoisting mechanism of snowmaker, receives in the housing of the snowmaker and inner bag (3) is housed, it is characterised in that

The first reinforced support (71) that the hoisting mechanism includes being close to setting on the outside of the inner bag (3) upper surface, be close to it is described Set and aligned with first reinforced support (71) on the inside of the housing upper surface of snowmaker and added in up and down symmetrically arranged second Strong support (72), the sleeve pipe (73) that the setting of the two reinforced supports is sequentially passed through along the vertical direction, run through the set along the vertical direction The lengthening screw rod (74) of pipe (73) setting, the consolidating on the part on the outside of the snowmaker for being arranged on the lengthening screw rod (74) Fixed rack (75).

2. the hoisting mechanism of snowmaker according to claim 1, it is characterised in that provided with heat exchange in the inner bag (3) Crossbeam (41) is provided with the top of device (4), the heat exchanger (4), the bottom for lengthening screw rod (74) sequentially passes through described from top to bottom Housing, described sleeve pipe (73), the inner bag (3), the crossbeam (41) of snowmaker are fastened on the crossbeam (41) afterwards, and And, it is described to lengthen screw rod (74) by the first fastener with being tightened together on the outside of the upper surface of the housing of the snowmaker.

3. the hoisting mechanism of snowmaker according to claim 2, it is characterised in that in the crossbeam (41) and the inner bag (3) it is provided with sealing gasket between, the bottom of the lengthening screw rod (74) sequentially passes through the housing of the snowmaker from top to bottom, described Sleeve pipe (73), the inner bag (3), the sealing gasket, the crossbeam (41) are fastened on the crossbeam (41) afterwards.

4. the hoisting mechanism of snowmaker according to claim 1, it is characterised in that the fixed support (75) adds with described Long bolt (74) is tightened together by the second fastener.

5. the hoisting mechanism of snowmaker according to claim 2, it is characterised in that the lengthening screw rod (74) with it is described Crossbeam (41) place of being engaged is coated with screw thread fastening glue.

6. the hoisting mechanism of snowmaker according to claim 1, it is characterised in that first reinforced support (71), institute State the second reinforced support (72) and the fixed support (75) is square arrangement.

7. a kind of snowmaker, it is characterised in that include the hoisting mechanism of any described snowmaker in claim 1~6.