CN207735473U - A kind of Neto formula angle freezer liner supporting mechanism - Google Patents

Abstract

The utility model discloses a kind of Neto formula angle freezer liner supporting mechanisms, including liftable cabinet Kou Tai and six pillar framework supporting mechanisms.Six pillar framework supporting mechanisms include three sets of column groups：First column group, the second column group and third column group.First column group, the second column group and third column group are sequentially arranged successively, and in longitudinal central axis line.The two root posts of three sets of column groups are respectively arranged on the both sides of longitudinal central axis line, and are symmetrical with longitudinal central axis line.Cabinet mouth platform ring column is arranged, and when top for tipping upside down on six pillar framework supporting mechanisms when freezer liner supports the cabinet mouth of freezer liner.It is respectively arranged with pressure pin in angle cabinet on three root posts of three sets of column group homonymies.Pressure pin is horizontally disposed in angle cabinet, and is mounted on column by angle cabinet Neto cylinder so that pressure pin is higher than the table top of cabinet mouth platform in angle cabinet, and under the driving of angle cabinet support cylinder, can stretch out the side that three root posts of three sets of column group homonymies are formed.

Description

A kind of Neto formula angle freezer liner supporting mechanism

Technical field

Automated job platform when being processed the utility model is related to freezer liner riveting.

Background technology

Freezer liner coaming plate is for being isolated freezer liner and refrigeration device.Freezer liner coaming plate is usually by Figured aluminium plate system At.In general, freezer liner coaming plate adds again after becoming degree of lip-rounding coaming plate after mutually being riveted by the U-shaped coaming plate made by two pieces of Figured aluminium plates It is formed after upper plate riveting.After being riveted again with Z-shaped bottom plate after small one and large one riveting of two U-shaped coaming plates, formed have it is step-like Freezer liner coaming plate.Under the prior art, by the riveting between two blocks of U-shaped coaming plates and Z-shaped bottom plate by being accomplished manually.

Invention content

Problem to be solved in the utility model：Riveting is carried out by automation riveting machine between two blocks of U-shaped coaming plates and Z-shaped bottom plate When connecing processing, freezer liner needs are supported by operation post, which needs to meet automated job needs, and can Support inclined mouth type freezer liner.

To solve the above problems, the scheme that the utility model uses is as follows：

A kind of Neto formula angle freezer liner supporting mechanism, including liftable cabinet Kou Tai and six pillar frameworks support machine Structure；Six pillar framework supporting mechanisms include three sets of column groups：First column group, the second column group and third column group；Often set is vertical Column group includes two mutually level columns；The column of first column group and the second column group is high column with height；Third column The column of group is shorter than the column of the first column group and the second column group, is short column；First column group, the second column group and third Column group is sequentially arranged successively, and in longitudinal central axis line；The two root posts of three sets of column groups are respectively arranged on longitudinal central axis The both sides of line, and be symmetrical with longitudinal central axis line；The column of three sets of column groups is identical at a distance from longitudinal central axis line；Cabinet mouth platform ring Column is arranged, and when top for tipping upside down on six pillar framework supporting mechanisms when freezer liner supports the cabinet of the freezer liner Mouthful；It is respectively arranged with pressure pin in angle cabinet on three root posts of three sets of columns group homonymy；Pressure pin is horizontally disposed in angle cabinet, And it is mounted on column by angle cabinet Neto cylinder so that pressure pin is higher than the table top of cabinet mouth platform in angle cabinet, and can be oblique Under the driving of mouth cabinet support cylinder, the side that three root posts of three sets of columns group homonymy are formed is stretched out, to make angle cabinet Interior pressure pin can support the cabinet mouth of the freezer liner of inclined mouth type.

Further, two high columns of the first column group are vertically arranged in first longitudinal direction translation plates by transverse adjusting mechanism On；The two root posts of second column group are vertically arranged in by transverse adjusting mechanism on longitudinally fixed plate；The two of third column group Root post is vertically arranged in by transverse adjusting mechanism in second longitudinal direction translation plates；Three corresponding to three sets of column groups are laterally adjusted Complete machine structure is connected with synchronous spacing adjustment driving mechanism；Synchronous spacing adjustment driving mechanism is for driving each transverse adjusting mechanism simultaneously So that each transverse adjusting mechanism adjusts column pitch-synchronous；First longitudinal direction translation plates and second longitudinal direction translation plates, which are mounted on, to be parallel to In the longitudinal slide rail of longitudinal central axis line, and it is connected separately with longitudinal translation driving mechanism；Longitudinal translation driving mechanism is for driving Central axes are moved along longitudinal direction for first longitudinal direction translation plates or second longitudinal direction translation plates.

Further, the transverse adjusting mechanism includes cross lead screw and horizontal slide rail；The two root posts bottom of the column group Portion is erected at by sliding block in horizontal slide rail respectively；Cross lead screw is equipped with forward and reverse screw thread, parallel with horizontal slide rail；It is described vertical The two root posts bottom of column group is separately connected the forward screw thread and reverse thread of cross lead screw by silk braid, so that when laterally Lead screw can drive the two root posts of the column group to be moved in a reverse direction in horizontal slide rail when rotating；Between the synchronization Include the first vertical petal shaft transmission, the second vertical petal shaft transmission, the vertical petal of third away from adjustment driving mechanism Shaft transmission, petal axis and the wide motor of tune；First vertical petal shaft transmission, the second vertical petal shaft transmission and Three vertical petal shaft transmissions are set on petal axis, and can be moved along petal axis；Petal axis is laterally adjusted perpendicular to described The cross lead screw of complete machine structure；Petal axis passes through the first vertical petal shaft transmission, the second vertical petal shaft transmission respectively Petal shaft transmission vertical with third connects the cross lead screw of the transverse adjusting mechanism corresponding to three sets of column groups；Petal axis connects Connect the wide motor of tune.

Further, cabinet mouth platform is connected with cabinet mouth platform elevating mechanism；The cabinet mouth platform elevating mechanism include chain, motor and Four sleeve screw rod column sleeve mechanisms；Lead screw column sleeve mechanism includes silk braid column and lead screw column；Silk braid column is vertically installed on pedestal；Silk Roofbolt is vertically arranged in the silk braid hole of silk braid column；The top of silk braid column is provided with driving gear；Gear is driven to be mounted on lead screw On column, and it can be rotated synchronously with lead screw column；Four sleeve screw rod column sleeve mechanisms are located at the quadrangle of pedestal；Cabinet mouth platform is four directions Shape plate body is mounted on the top of lead screw column, in horizontally disposed；Motor is mounted on the base, and is connected with driving gear；Chain ring Driving gear in each lead screw column sleeve mechanism and driving gear, so that motor can pass through driving gear and chain band Driving gear rotation in dynamic each lead screw column sleeve mechanism, and then drive the rotation of lead screw column.

The technique effect of the utility model is as follows：

1, six pillar framework supporting mechanisms of the step-like structure of three sets of column groups composition, size is adjustable, to just It is operated in automatic mechanical hand.Above and below six pillar framework supporting mechanisms when freezer liner, six pillar framework supporting mechanism sizes It reduces, consequently facilitating freezer liner is placed on six pillar framework supporting mechanisms or convenient for will be in refrigerator by automatic mechanical hand Courage takes out from six pillar framework supporting mechanisms.When riveting mechanism carries out riveting processing, six pillar framework supporting mechanisms expand Size carries out operation to be tensioned from inside freezer liner convenient for riveting mechanism.Six pillar framework supporting mechanism sizes simultaneously Adjustable design enables the six pillars framework supporting mechanism that the freezer liner of different sizes is supported to process.

2, the freezer liner is enable to support the freezer liner of inclined mouth type by pressure pin in telescopic angle cabinet, simultaneously Also the freezer liner of flat mouth can be supported.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model.

Fig. 2 is the dimensional structure diagram of the six pillar framework supporting mechanisms to visual angle after the utility model embodiment.

Fig. 3 is the dimensional structure diagram of the six pillar framework supporting mechanisms to visual angle before the utility model embodiment.

Fig. 4 is the structural schematic diagram that the utility model embodiment transverse adjusting mechanism adjusts driving mechanism with synchronous spacing.

Specific implementation mode

The utility model is described in further details below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of Neto formula angle freezer liner supporting mechanism, including six pillar frameworks support machine Structure 13 and cabinet mouth platform 111.Six pillar framework supporting mechanisms 13 are for placing processed freezer liner.When freezer liner is placed on When upper, freezer liner is tipped upside down in a manner of cabinet mouth down on six pillar framework supporting mechanisms 13.Cabinet mouth platform 111 is six pillar of ring The level table that framework supporting mechanism 13 is arranged, height is adjustable, and six pillar framework supporting mechanisms are tipped upside down on for working as freezer liner The cabinet mouth of freezer liner is supported when on 13.Six pillar framework supporting mechanisms 13 include six roots of sensation column.The frame of six roots of sensation column composition Structure size is adjustable, to match the freezer liner of different sizes.Six roots of sensation stem height is non-adjustable, and cabinet mouth platform 111 It is highly adjustable, so that the freezer liner supporting mechanism can support the freezer liner of different height.

The six roots of sensation column of six pillar framework supporting mechanisms 13 is divided into three sets of column groups, and it includes two identical height often to cover column group The column of degree.Three sets of column groups are respectively：First column group, the second column group and third column group.First column group and second The column of column group is high column 1331 with height.Column of the column of third column group than the first column group and the second column group It is short, it is short column 1332.It is, the six roots of sensation column of six pillar framework supporting mechanisms 13 includes four high columns 1331 and two Short column 1332.First column group, the second column group and third column group are sequentially arranged successively, and are located at longitudinal central axis line On.The two root posts of three sets of column groups are respectively arranged on the both sides of longitudinal central axis line, and with longitudinal central axis line be it is symmetrical, and three sets Spacing between the two root posts of column group is identical, and thus in the top group stepped structure of six roots of sensation column, can Match Z-shaped bottom plate.

Two high columns 1331 of the first column group are vertically arranged in first longitudinal direction translation plates by transverse adjusting mechanism On 1313.Two high columns 1331 of the second column group are vertically arranged in by transverse adjusting mechanism on longitudinally fixed plate 1317. Two short columns 1332 of third column group are vertically arranged in by transverse adjusting mechanism in second longitudinal direction translation plates 1316.First Longitudinal translation plate 1313 and second longitudinal direction translation plates 1316 are horizontally arranged at by sliding block is parallel to the longitudinal sliding of longitudinal central axis line On rail 1311, and it is connected separately with longitudinal translation driving mechanism：First longitudinal direction translational drive mechanism and second longitudinal direction driven in translation Mechanism.Longitudinal slide rail 1311 is horizontally arranged on bottom plate 1300.Bottom plate 1300 is then horizontally fixed on pedestal 110.

First longitudinal direction translational drive mechanism and second longitudinal direction translational drive mechanism are respectively used to driving first longitudinal direction translation plates 1313 and second longitudinal direction translation plates 1316 along longitudinal direction central axes move.First longitudinal direction translational drive mechanism includes first longitudinal direction driving Motor 1310 and first longitudinal direction lead screw 1312.First longitudinal direction lead screw 1312 is located in longitudinal central axis line, and connects first longitudinal direction drive Dynamic motor 1310.First longitudinal direction lead screw 1312 connects first longitudinal direction translation plates 1313 by silk braid.First longitudinal direction driving electricity as a result, Machine 1310 drives first longitudinal direction lead screw 1312 to rotate, and passes through 1313 bottom of first longitudinal direction lead screw 1312 and first longitudinal direction translation plates Screw thread engagement between silk braid, driving first longitudinal direction translation plates 1313 translate in longitudinal slide rail 1311.Second longitudinal direction is flat It includes second longitudinal direction driving motor 1314 and second longitudinal direction lead screw 1315 to move driving mechanism.Second longitudinal direction lead screw 1315 is located at longitudinal On central axes, and connect second longitudinal direction driving motor 1314.Second longitudinal direction lead screw 1315 connects second longitudinal direction translation by silk braid Plate 1316.Second longitudinal direction driving motor 1314 drives second longitudinal direction lead screw 1315 to rotate as a result, passes through second longitudinal direction lead screw 1315 Screw thread engagement between the silk braid of 1316 bottom of second longitudinal direction translation plates, driving second longitudinal direction translation plates 1316 are in longitudinal direction It is translated on sliding rail 1311.

In the present embodiment, longitudinally fixed plate 1317 is mounted in longitudinal slide rail 1311, but is not connected with having longitudinal translation driving Mechanism, therefore, longitudinally fixed plate 1317 are the relatively-stationary plate bodys in position.When first longitudinal direction translational drive mechanism and second longitudinal direction When translational drive mechanism respectively drives first longitudinal direction translation plates 1313 and the movement of second longitudinal direction translation plates 1316 so that first longitudinal direction Two of third column group in the two root posts and second longitudinal direction translation plates 1316 of the first column group in translation plates 1313 are vertical Column is moved relative to the two root posts of the second column group, so as to adjust fore-and-aft distance between column group, that is, adjusts six pillars 13 longitudinal size of framework supporting mechanism.

Transverse adjusting mechanism is used to adjust the spacing in column group between two root posts, and then adjusts the support of six pillar frameworks The lateral dimension of mechanism 13.Three transverse adjusting mechanisms corresponding to three sets of column groups are connected with synchronous spacing adjustment driving machine Structure.Synchronous spacing adjustment driving mechanism is for driving each transverse adjusting mechanism and making each transverse adjusting mechanism adjustment column spacing It is synchronous.Synchronous spacing adjustment driving mechanism includes the first vertical petal shaft transmission 1301, the second vertical petal axis driver The vertical petal shaft transmission 1303 of structure 1302, third, petal axis 1304 and adjust wide motor 1305.Transverse adjusting mechanism, such as Fig. 4 It is shown, including cross lead screw 1321 and horizontal slide rail 1322.The two root posts bottom of column group is vertical by sliding block 1323 respectively It is erected in horizontal slide rail 1322.Level is erected at first longitudinal direction translation to horizontal slide rail 1322 corresponding to three sets of column groups respectively Plate 1313, longitudinally fixed plate 1317, in second longitudinal direction translation plates 1316.Horizontal slide rail 1322 is transversely to the machine direction sliding rail 1311.It is horizontal It is equipped with forward and reverse screw thread to lead screw 1321, it is parallel with horizontal slide rail 1322.The two root posts bottom of column group passes through silk braid point Not Lian Jie cross lead screw 1321 forward screw thread and reverse thread so that phase can be driven when cross lead screw 1321 rotates The two root posts of column group are answered to be moved in a reverse direction in horizontal slide rail 1322.First vertical petal shaft transmission 1301, the second vertical petal shaft transmission 1302 petal shaft transmission 1303 vertical with third is set on petal axis 1304, And it can be moved along petal axis 1304.Petal axis 1304 is parallel to longitudinal slide rail 1311, and perpendicular to transverse adjusting mechanism Cross lead screw 1321.Petal axis 1304 is driven by the first vertical petal shaft transmission 1301, the second vertical petal axis respectively The petal shaft transmission 1303 vertical with third of mechanism 1302 connects the transverse direction of the transverse adjusting mechanism corresponding to three sets of column groups Lead screw 1321.Wide motor 1305 is adjusted in the connection of petal axis 1304.As a result, when adjusting wide motor 1305 that petal axis 1304 is driven to rotate, spend Valve axis 1304 is hung down by the first vertical petal shaft transmission 1301, the second vertical petal shaft transmission 1302 and third respectively Straight petal shaft transmission 1303 drives the cross lead screw 1321 of the transverse adjusting mechanism corresponding to three sets of column groups to rotate, to Adjust the spacing between the two root posts of three sets of column groups.Petal axis 1304 is the same as the spline in 105798180 A of patent document CN Axis.

111 ring column of cabinet mouth platform is arranged, that is, is provided with leghole on cabinet mouth platform 111.Six pillar framework supporting mechanisms 13 six roots of sensation column is each passed through corresponding leghole.Cabinet mouth platform 111 is connected with cabinet mouth platform elevating mechanism, and passes through cabinet mouth platform liter Descending mechanism realizes that lifting is adjustable.Cabinet mouth platform elevating mechanism for drive cabinet mouth platform 111 lift, including chain 112, motor 113 with And four sleeve screw rod column sleeve mechanism.Lead screw column sleeve mechanism includes silk braid column 121, lead screw column 122, driving gear 123 and two clampings Gear 124.Silk braid column 121 is vertically installed on pedestal 110.Lead screw column 122 is vertically arranged in the silk braid hole of silk braid column 121. Four lead screw column sleeve mechanisms are located at the quadrangle of pedestal 110.Cabinet mouth platform 111 is mounted on the top of lead screw column 122, is set in level It sets.Cabinet mouth platform 111 is square plate body, and quadrangle respectively corresponds to a sleeve screw rod column sleeve mechanism respectively.Pacify on the top of silk braid column 121 Equipped with horizontal gear cabinet mouth platform 125.Gear 123 is driven to be mounted on lead screw column 122, and positioned at the upper of gear cabinet mouth platform 125 Side.Two clamping gears 124 are mounted on gear cabinet mouth platform 125, are located at the both sides of driving gear 123.Drive gear 123 It can be rotated synchronously with lead screw column 122.When driving gear 123 to rotate, lead screw column 122 is driven to rotate.The lead screw column 122 of rotation Lead screw column 122 is driven to lift by the threaded function between lead screw column 122 and silk braid column 121, to drive 111 liters of cabinet mouth platform Drop.Motor 113 is mounted on pedestal 110, and is connected with driving gear 114.It installs and is provided with two on the table top of driving gear 114 A transition gear 115.Driving gear 123, clamping gear 124, driving gear 114 and transition gear 115 are respectively positioned on identical height On degree.Chain 112 intersects around driving gear 114, transition gear 115, driving gear 123 and clamping gear 124.Wherein, exist At driving gear 114 and transition gear 115, chain 112 is around driving gear 114 and two transition gears 115 so that chain 112 In omega structure, and it is meshed simultaneously with driving gear 114 and two transition gears 115.In driving gear 123 and clamping gear At 124, chain 112 be held on driving gear 123 and clamping gear 124 between, and simultaneously with driving gear 123 and be clamped gear 124 are meshed.As a result, when motor 113 drives driving gear 114 to rotate, chain 112 rotates movement therewith, and then drives each The driving gear 123 of a lead screw column sleeve mechanism rotates, and by the screw thread engagement between lead screw column 122 and silk braid column 121, drives Dynamic cabinet mouth platform 111 lifts.

Further, since cabinet mouth platform 111 is horizontal, thus can only support level cabinet mouth freezer liner.And freezer liner In more angles, that is, the refrigerator of low early and high after formula, freezer liner is also corresponding low early and high after and is in angle.Inclined mouth type it is cold Under the cabinet mouth platform mode of this level, the cabinet oral area point that rear side can only be supported high, the low cabinet oral area in front side point is hanged cabinet liner Sky can not support.For this purpose, the utility model realizes this inclined mouth type freezer liner using installing scalable bracket on column Support.

When freezer liner is angle cabinet, bracket is stretched out into the low cabinet oral area point in support front side.In the present embodiment, such as Fig. 2 Shown, the scalable bracket installed on column is pressure pin 1336 in angle cabinet.Pressure pin 1336 has three in angle cabinet.Three sets of columns It is each provided with pressure pin 1336 in an angle cabinet respectively on three root posts of group homonymy.Pressure pin 1336 is always above in angle cabinet The table top of cabinet mouth platform 111 is mounted on corresponding column by angle cabinet Neto cylinder 1335, and connects angle cabinet Neto cylinder 1335 piston so that pressure pin 1336 can be under the driving of angle cabinet support cylinder 1335 in angle cabinet, can protruding three The side that is formed of three root posts of set column group homonymy, to enable pressure pin 1336 in angle cabinet to support the refrigerator of inclined mouth type The cabinet mouth of liner.Since pressure pin 1336 is higher than the table top of cabinet mouth platform 111 in angle cabinet, when pressure pin 1336 stretches out in angle cabinet, The part that the cabinet open height of inclined mouth type freezer liner is short is supported by pressure pin 1336 in angle cabinet, and the cabinet mouth of inclined mouth type freezer liner is high High part is spent to be supported by cabinet mouth platform 111.

Claims (4)

1. a kind of Neto formula angle freezer liner supporting mechanism, which is characterized in that including liftable cabinet mouth platform (111) and six columns Formula framework supporting mechanism (13)；Six pillar framework supporting mechanisms (13) include three sets of column groups：First column group, the second column group With third column group；Often set column group includes two mutually level columns；The column of first column group and the second column group is same Height is high column；The column of third column group is shorter than the column of the first column group and the second column group, is short column；First is vertical Column group, the second column group and third column group are sequentially arranged successively, and in longitudinal central axis line；Two of three sets of column groups Column is respectively arranged on the both sides of longitudinal central axis line, and is symmetrical with longitudinal central axis line；The column and longitudinal central axis of three sets of column groups The distance of line is identical；Cabinet mouth platform (111) ring column is arranged, and six pillar framework supporting mechanisms (13) are tipped upside down on for working as freezer liner Top when support the cabinet mouth of the freezer liner；It is respectively arranged with angle cabinet on three root posts of three sets of columns group homonymy Interior pressure pin (1336)；Pressure pin (1336) is horizontally disposed in angle cabinet, and is mounted on column by angle cabinet Neto cylinder (1335) On so that pressure pin (1336) is higher than the table top of cabinet mouth platform (111) in angle cabinet, and can be in the drive of angle cabinet support cylinder (1335) Under dynamic, the side that three root posts of three sets of columns group homonymy are formed is stretched out, to make pressure pin (1336) energy in angle cabinet Enough cabinet mouths of the freezer liner of support inclined mouth type.

2. Neto formula angle freezer liner supporting mechanism as described in claim 1, which is characterized in that two of the first column group High column is vertically arranged in by transverse adjusting mechanism in first longitudinal direction translation plates；The two root posts of second column group pass through transverse direction Adjustment mechanism is vertically arranged on longitudinally fixed plate；The two root posts of third column group are vertically arranged in by transverse adjusting mechanism In second longitudinal direction translation plates；Three transverse adjusting mechanisms corresponding to three sets of column groups are connected with synchronous spacing adjustment driving machine Structure；Synchronous spacing adjustment driving mechanism is for driving each transverse adjusting mechanism and making each transverse adjusting mechanism adjustment column spacing It is synchronous；First longitudinal direction translation plates and second longitudinal direction translation plates, which are mounted on, to be parallel in the longitudinal slide rail of longitudinal central axis line, and respectively It is connected with longitudinal translation driving mechanism；Longitudinal translation driving mechanism is for driving first longitudinal direction translation plates or second longitudinal direction translation plates Central axes are moved along longitudinal direction.

3. Neto formula angle freezer liner supporting mechanism as claimed in claim 2, which is characterized in that the transverse adjusting mechanism Including cross lead screw (1321) and horizontal slide rail (1322)；The two root posts bottom of the column group is erected at by sliding block respectively In horizontal slide rail (1322)；Cross lead screw (1321) is equipped with forward and reverse screw thread, parallel with horizontal slide rail (1322)；The column The two root posts bottom of group is separately connected the forward screw thread and reverse thread of cross lead screw (1321) by silk braid, so that working as Cross lead screw (1321) can drive the two root posts of the column group in horizontal slide rail (1322) with opposite side when rotating To movement；The synchronous spacing adjustment driving mechanism includes the first vertical petal shaft transmission (1301), the second vertical petal The vertical petal shaft transmission (1303) of shaft transmission (1302), third, petal axis (1304) and the wide motor (1305) of tune；The One vertical petal shaft transmission (1301), the second vertical petal shaft transmission (1302) and the vertical petal axis driver of third Structure (1303) is set on petal axis (1304), and can be mobile along petal axis (1304)；Petal axis (1304) is perpendicular to described The cross lead screw (1321) of transverse adjusting mechanism；Petal axis (1304) passes through the first vertical petal shaft transmission respectively (1301), the second vertical petal shaft transmission (1302) and the vertical petal shaft transmission (1303) of third connect three sets of columns The cross lead screw (1321) of the corresponding transverse adjusting mechanism of group；Wide motor (1305) is adjusted in petal axis (1304) connection.

4. Neto formula angle freezer liner supporting mechanism as described in claim 1, which is characterized in that cabinet mouth platform (111) connects There is cabinet mouth platform elevating mechanism；The cabinet mouth platform elevating mechanism includes chain (112), motor (113) and four sleeve screw rod column sleeve machines Structure；Lead screw column sleeve mechanism includes silk braid column (121) and lead screw column (122)；Silk braid column (121) is vertically installed at pedestal (110) on；Lead screw column (122) is vertically arranged in the silk braid hole of silk braid column (121)；The top of silk braid column (121) is provided with drive Moving gear (123)；It drives gear (123) to be mounted on lead screw column (122), and can be rotated synchronously with lead screw column (122)；Four Sleeve screw rod column sleeve mechanism is located at the quadrangle of pedestal (110)；Cabinet mouth platform (111) is square plate body, is mounted on lead screw column (122) top, in horizontally disposed；Motor (113) is mounted on pedestal (110), and is connected with driving gear (114)；Chain (112) the driving gear (123) and driving gear (114) in each lead screw column sleeve mechanism, so that motor (113) energy Enough the driving gear (123) in each lead screw column sleeve mechanism is driven to rotate by driving gear (114) and chain (112), in turn Lead screw column (122) is driven to rotate.