TWM508784U - Lifting device - Google Patents

Abstract

A lifting device is disclosed. The lifting device includes a base plate, at least one multi-linkage mechanism, a carrier, at least one driving device. Each of the at least one driving device comprises a 2-directional screw rod and a driving unit. The driving unit disposed on one side of the 2-directional screw rod, the 2-directional screw rod is connected with one of the at least one multi-linkage mechanism. While rotating the 2-directional screw rod, the carrier will move upward/downward. By disposing the 2-directional screw rod, the operation space needed by the lifting device is decreased greatly.

Description

Lift table device

This creation is about a lifting platform device, especially for high cleanliness environments.

1 is a schematic view of a lifting platform device 10 of the prior art. The lifting platform device 10 includes a loading platform 12, at least one one-way screw 11, at least one set of multi-link mechanisms 14, and at least one driving device 15. The at least one one-way screw 11 is rotated by the at least one driving device 15, and the at least one set of multi-link mechanism 14 is driven to raise/lower the loading platform 12.

In the prior art, since the one-way screw 11 is used, there are the following problems: 1. Most of the threads of the one-way screw 11 are exposed to the outside, which may cause a certain degree of lubricant escape problem; 2. When the carrier When the 12 is at the highest or lowest position, a distal end 13 of the one-way screw 11 is rotated outward or inward, so that the lifting device 10 needs to use the maximum movable position of the distal end 13 as the working space of the lifting device 10, resulting in The waste of space, the operating space of the lifting device will be limited.

Therefore, it is necessary to provide a lifting table device suitable for use in a high-cleanness environment to solve the above problems.

In view of this, the purpose of the present invention is to provide a lifting platform device, particularly for use in a high-cleanness environment, which has the effect of improving the above problems.

In order to achieve the above object, the present invention provides a lifting platform device which is particularly suitable for use in a high cleanliness environment, the lifting platform device comprising a base, at least one set of multi-link mechanisms, a carrying platform and at least one driving device.

Each of the at least one set of multi-link mechanisms includes a first multi-link, a second multi-link, an upper mount, and a lower mount corresponding to the number of multi-links. The first multi-link and the first end of the second multi-link are connected to the upper fixing frame, and the first multi-link and the second end of the second multi-link are connected to the lower fixing member, The at least one lower fixture of each set of the multi-link mechanism is disposed on the base.

The carrier is for fixing to the upper holder of each set of the multi-link mechanism.

Each of the at least one driving device includes a bidirectional screw and a driving unit. The two-way screw is coupled to a set of multi-link mechanisms. When the driving units are operated, the two-way screw is driven to rotate, so that the connected multi-link mechanism is activated, so that the carrying platform rises or falls.

In an embodiment of the present invention, a distance between the first end point of the first multi-link and the first end point of the second multi-link is fixed, and the second of the first multi-link The distance between the end point and the second end of the second multi-link is fixed.

In an embodiment of the present creation, the first multi-link includes a first link having a threaded bore. The second multi-link includes a second link having a threaded bore. The base includes a first slide rail and a second slide rail. The first connecting member is slidably coupled to the first sliding rail, and the second connecting member is slidably coupled to the second sliding rail. One end of the two-way screw is inserted into the threaded hole of the first connecting member to be coupled with the first multi-link, and the other end of the two-way screw is inserted into the threaded hole of the second connecting member and the second multi-connector Rod connection.

In an embodiment of the present invention, the first connecting member and the second connecting member are screwed The inner wall of the pit is provided with threads in opposite directions.

In an embodiment of the present invention, the distance between each of the first links and each of the second links changes with the rotation of the two-way screw.

In an embodiment of the present invention, the first multi-link and the second multi-link each have a first link, a second link, a third link, and a fourth link. The first multi-link and the second multi-link are each pivotally coupled to the upper mount by the first link. The first multi-link and the second multi-link are each pivotally coupled to the lower fixture by the second link. The first link of the first multi-link is pivotally coupled to the second link, the first link of the second multi-link being pivotally coupled to the second link. The first link of the first multi-link is pivotally coupled to the third link, the first link of the second multi-link being pivotally coupled to the third link. The second link of the first multi-link is pivotally coupled to the fourth link, and the second link of the second multi-link is pivotally coupled to the fourth link. The third link of the first multi-link is pivotally coupled to the fourth link, and the third link of the second multi-link is pivotally coupled to the fourth link. The first multi-link is pivotally coupled to the first link by the fourth link, and the second multi-link is pivotally coupled to the second link by the fourth link.

In an embodiment of the present invention, the first link of the first multi-link is pivotally coupled to the third link at an intermediate portion, and the first link of the second multi-link is in the middle A portion is pivotally coupled to the third link. The second link of the first multi-link is pivotally coupled to the fourth link at an intermediate portion, the second link of the second multi-link being pivotable at an intermediate portion and the fourth link Turn to ground connection. The fourth link of the first multi-link is pivotally coupled to the second link at an intermediate portion, the fourth link of the second multi-link being pivotable at the intermediate portion and the second link Turn to ground connection.

In an embodiment of the present invention, the elevator apparatus further includes at least one crossbar fixed to the first plurality of links and adjacent ones of the adjacent two sets of the at least one set of multi-link mechanisms One or both of the second plurality of links of the at least one set of multi-link mechanisms.

Compared to the prior art, the present invention reduces the amount of space required for the operation of the elevator apparatus by using a two-way screw. Therefore, it can be applied to a high-cleanness environment to increase the convenience of the operator.

10, 100‧‧‧ lifting table device

11‧‧‧One-way screw

12, 170‧‧‧ Carrying platform

13‧‧‧ distal

14, 160‧‧‧Multi-bar linkage

15, 180‧‧‧ drive

110‧‧‧Base

120‧‧‧low fixtures

130‧‧‧Upper mounting

140‧‧‧First multi-link

141, 151‧‧‧ first link

142‧‧‧First slide rail

143‧‧‧First connector

145, 155‧‧‧ second link

147, 157‧‧‧ third link

149, 159‧‧‧ fourth link

150‧‧‧Second multi-link

152‧‧‧Second rail

153‧‧‧Second connector

181‧‧‧ drive unit

183‧‧‧Two-way screw

190‧‧‧cross bar

1411, 1511‧‧‧ first endpoint

1451, 1551‧‧‧ second endpoint

1412, 1512‧‧‧ third endpoint

1413, 1513‧‧‧ fourth endpoint

1472, 1572‧‧‧ fifth endpoint

1453, 1553‧‧‧ sixth endpoint

1491, 1591‧‧‧ seventh endpoint

1414, 1514‧‧‧ eighth endpoint

1 is a schematic view showing a lifting platform device of the prior art.

Fig. 2 is a schematic view showing a lifting platform device of the present invention.

Fig. 3 is a side view showing the lifting table device in Fig. 2.

The embodiments described in detail below with reference to the drawings will make the advantages and features of the present invention and the methods for achieving these advantages and features more apparent. However, the present invention is not limited to the embodiments disclosed below, and the present invention can be implemented in various ways that are different from each other. The embodiments disclosed below are only used to make the disclosure of the present creation more complete and contribute to the creation of the present creation. A person of ordinary skill in the art can fully understand the scope of the present creation, and the creation is defined in accordance with the scope of the patent application. Throughout the specification, the same reference numerals denote the same device elements.

Please refer to FIG. 2 , which illustrates a schematic diagram of a lifting platform device 100 . The lifting platform device 100 includes a base 110, two sets of multi-link mechanisms 160, a carrying platform 170, two cross bars 190, and two driving devices 180. The base 110 and the carrying platform 170 pass through the two sets of multi-link mechanisms 160 connections. Two crossbars 190 (the number can be increased or decreased) are disposed between the two sets of multi-link mechanisms 160, and the driving device 180 is used to raise or lower the loading platform 170 through the two sets of multi-link mechanisms 160. As shown in FIG. 3, if only the two sets of multiple linkage mechanisms 160 are present, the problem that the loading platform 170 may be unstable or even dumped may occur, so that the arrangement of the two crossbars 190 may increase the stability of the loading platform 170. Sex.

Each of the driving devices 180 includes a two-way screw 183 (threaded inside) and a driving unit 181, and each of the two-way screws 183 is connected to each of the at least one group of multi-link mechanisms 160, and the movement of the driving unit 181 drives the The movement of the two-way screw 183. By simultaneously driving each of the driving units 181, each of the two-way screws 183 rotates at the same time, thereby driving the rise or fall of each of the at least one group of multi-link mechanisms 160, and finally raising or lowering the stage 170.

Figure 3 is a side elevational view of the elevator apparatus 100 in Figure 2; The set of multi-link mechanisms 160 includes a first multi-link 140, a second multi-link 150, an upper mount 130, and a lower fixed mount 120 corresponding to the number of multi-links, the first multi-link 140 and the first One end of the two multi-links 150 is connected to the upper fixing frame 130 , and the other ends of the first multi-link 140 and the second multi-link 150 are respectively connected to the base 110 by the lower fixing member 120 . The first multi-link 140 includes a first link 143, a first link 141, a second link 145, a third link 147, and a fourth link 149, and has a plurality of end points as detailed below. At the first end point 1411, the first link 141 is pivotally coupled to the upper mount 130. At the second end point 1451, the second link 145 is pivotally coupled to the lower fixture 120. At a third end point 1412, the first link 141 is pivotally coupled to the second link 145. At a fourth end point 1413, the third link 147 is pivotally coupled to the first link 141. At a fifth end point 1472, the third link 147 is pivotally coupled to the fourth link 149. At a sixth end point 1453, the second link 145 is pivotally coupled to the fourth link 149. At the seventh endpoint 1491, the fourth A link 149 is pivotally coupled to the first link 143.

The second multi-link 150 includes a first link 153, a first link 151, a second link 155, a third link 157, and a fourth link 159, and has a plurality of end points as detailed below. At the first end point 1511, the first link 151 is pivotally coupled to the upper mount 130. At the second end point 1551, the second link 155 is pivotally coupled to the lower fixture 120. At a third end point 1512, the first link 151 is pivotally coupled to the second link 155. At a fourth end point 1513, the third link 157 is pivotally coupled to the first link 151. At a fifth end point 1572, the third link 157 is pivotally coupled to the fourth link 159. At a sixth end point 1553, the second link 155 is pivotally coupled to the fourth link 159. At the seventh end point 1591, the fourth link 159 is pivotally coupled to the second link 153.

In other words, the first endpoint 1411, 1511, the second endpoint 1451, 1551, the third endpoint 1412, 1512, the fourth endpoint 1413, 1513, the fifth endpoint 1472, 1572, the The sixth endpoints 1453, 1553, the seventh endpoints 1491, 1591 are all pivot points for pivoting. According to the present invention, the use of the lubricating oil only in the fulcrums for pivoting described above can reduce the problem of the escape of the lubricating oil. This also reduces the contamination that may be caused by the escape of lubricating oil in a high cleanliness environment. The biggest difference from the prior art is the use of the two-way screw to reduce the operating space required to raise/lower the lifting platform device.

In this embodiment, in particular, between the eighth end points 1414 of the first multi-link 140 of the two sets of multi-link mechanisms 160 and the second multi-links 150 of the two sets of multi-link mechanisms 160 A crossbar 190 is provided between the eighth end points 1514 to make the elevator apparatus 100 more stable.

The base 110 includes a first slide rail 142 and a second slide rail 152. Here, taking a group of multi-link mechanism 160 as an example, the first link member 143 is slidably coupled to the first slide rail. 142, the second connecting member 153 is slidably coupled to the second sliding rail 152, and one end of the two-way screw 183 is inserted into the threaded hole (not shown) of the first connecting member 143 to be connected to the first multiple The rod 140 is coupled, and the other end of the two-way screw 183 is inserted into the threaded hole of the second coupling member 153 to be coupled to the second multi-link 150.

The first connecting member 143 and the threaded hole of the second connecting member 153 are provided with mutually opposite threads (not shown). When the two-way screw 183 rotates, the first connecting member 143 and the second connecting member 153 are opposite to each other by the reverse thread of the first connecting member 143 and the inner wall of the threaded hole of the second connecting member 153. The direction of movement causes the loading platform 170 to ascend/descend, that is, the distance between the connecting member 153 and the connecting member 143 changes/decreases as the two-way screw 183 rotates.

During the ascending and descending process of the stage, the distance between the first end point 1411 of the first multi-link 140 and the first end point 1511 of the second multi-link 150 is fixed, the first multi-link The distance between the second end point 1451 of 140 and the second end point 1551 of the second multi-link 150 is fixed.

When the stage 170 is raised, the distance between the first link 143 and the second link 153 increases due to the reverse thread and the design of the double screw 183, thereby causing the stage 170 to rise.

When the stage 170 is lowered, the distance between the first link 143 and the second link 153 is reduced due to the reverse thread and the design of the double screw 183, thereby lowering the stage 170.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes without departing from the spirit and scope of the present invention. Retouching, so the scope of protection of this creation is attached The scope defined in the scope of application for patent application shall prevail.

100‧‧‧ Lifting table device

110‧‧‧Base

120‧‧‧low fixtures

130‧‧‧Upper mounting

140‧‧‧First multi-link

141, 151‧‧‧ first link

142‧‧‧First slide rail

143‧‧‧First connector

145, 155‧‧‧ second link

147, 157‧‧‧ third link

149, 159‧‧‧ fourth link

150‧‧‧Second multi-link

152‧‧‧Second rail

153‧‧‧Second connector

160‧‧‧Multi-bar linkage

170‧‧‧Loading station

180‧‧‧ drive

181‧‧‧ drive unit

183‧‧‧Two-way screw

190‧‧‧cross bar

Claims (8)

A lifting platform device suitable for use in a high cleanliness environment, the lifting platform device comprising: a base; at least one set of multi-link mechanisms, each of the at least one set of multi-link mechanisms including a first multi-link, a second a multi-link, an upper fixing frame and a lower fixing member corresponding to the plurality of connecting rods, wherein the first multi-link and the first end point of the second multi-link are connected to the upper fixing frame, the first multi-link The second end of the second multi-link is connected to the lower fixing member, and the at least one lower fixing member of each group of the multi-link mechanism is disposed on the base; a carrying platform is fixed for each group The upper fixing frame of the multi-link mechanism; and at least one driving device, each driving device comprises a bidirectional screw and a driving unit, the bidirectional screw is connected with a group of multi-link mechanisms; wherein when each driving unit operates, the driving The two-way screw rotates to cause the connected multi-link mechanism to move, thereby causing the carrier to ascend or descend. The lifting platform device of claim 1, wherein a distance between the first end point of the first multi-link and the first end point of the second multi-link is fixed, the first A distance between the second end of the connecting rod and the second end of the second multi-link is fixed. The lifting platform device of claim 1, wherein the first multi-link includes a first connecting member having a threaded hole, and the second multi-link includes a second connecting member having a threaded hole The base includes a first sliding rail and a second sliding rail. The first connecting member is slidably coupled to the first sliding rail, and the second connecting member is slidably coupled to the second sliding rail. One end of the screw is inserted into the threaded hole of the first connecting member to be coupled with the first multi-link, and the other end of the two-way screw is inserted into the threaded hole of the second connecting member to connect with the second multi-link Rod connection. The lifting platform device of claim 3, wherein the first connecting member and the inner wall of the threaded hole of the second connecting member are provided with threads in opposite directions. The lifting platform device of claim 3, wherein the distance between each of the first connecting members and each of the second connecting members changes with the rotation of the two-way screw. The lifting platform device of claim 3, wherein the first multi-link and the second multi-link each have a first link, a second link, a third link, and a fourth link, The first multi-link and the second multi-link are respectively pivotally connected to the upper holder through the first link, and the first multi-link and the second multi-link respectively pass the second a connecting rod is pivotally connected to the lower fixing member, the first connecting rod of the first multi-link is pivotally connected to the second connecting rod, and the first connecting rod of the second multi-link is pivotally connected The second link, the first link of the first multi-link is pivotally connected to the third link, and the first link of the second multi-link is pivotally connected to the third link, The second link of the first multi-link is pivotally connected to the fourth link, and the second link of the second multi-link is pivotally connected to the fourth link, the first multi-link The third link is pivotally connected to the fourth link, the third link of the second multi-link is pivotally connected to the fourth link, and the first multi-link passes the fourth link Pivotly connected to the first link The second multi-link is pivotally coupled to the second connector by the fourth link. The lifting platform device of claim 6, wherein the first link of the first multi-link is pivotally connected to the third link at an intermediate portion, the second multi-link a first link pivotally coupled to the third link at an intermediate portion; the second link of the first multi-link is pivotally coupled to the fourth link at an intermediate portion, the second plurality The second link of the link is pivotally coupled to the fourth link at an intermediate portion; and the fourth link of the first multi-link is pivotally coupled to the second link at an intermediate portion The fourth link of the second multi-link is pivotally coupled to the second link at an intermediate portion. The lifting platform device of claim 1, wherein the lifting platform device further comprises at least one crossbar fixed to the first of the two adjacent sets of the at least one set of multi-link mechanisms Multi-link and adjacent two sets of the second multi-link of the at least one set of multi-link mechanisms One or both.