TW201400385A - Horizontal gearing device with multiple stand racks - Google Patents

Abstract

This invention provides a horizontal gearing device with multiple stand racks comprising at least one L-shaped frame strip, at least one motor rack and at least one horizontal gearing mechanism. The horizontal gearing mechanism comprises a motor, a first guide roller, a second guide roller, a transmission chain, an elastic linkage shaft, and a direction arm. The direction arm can change the angle of the elastic linkage shaft to clamp a drawing rack. The motor can drive the first guide roller, and the gearing chain can be linked to enable the second guide roller to rotate at the same direction together with the first guide roller, thereby horizontally drawing or pushing the drawing rack. The elasticity of the first and second guide rollers can meet the variation of rack diameter of the drawing, and the elasticity of the elastic linkage shaft can meet the angle change of caused by the direction arm such that the gearing chain can maintain a proper tension force.

Description

Horizontal transmission of multi-layer stand

The invention relates to a horizontal transmission device, in particular to a multi-layer vertical frame capable of changing the angle of at least one horizontal transmission mechanism to grip a multi-layered vertical pull-out shelf and horizontally leading or guiding the pull-out shelf Horizontal drive.

In the process of agricultural transformation, in order to increase the output of agricultural products per unit of manpower or unit area, the methods of mechanization and industrialization have been gradually introduced. Many agricultural technologies that originally required larger working areas for planting, cultivation or processing can be changed into multiple layers. The rack stacks several working areas upwards. In addition to making full use of the land area, the concentration of the working area is also conducive to manual or mechanical operations, saving manpower and time, such as wilting, mushroom cultivation, silkworm breeding, etc. Agricultural technology is nowadays mostly used in agricultural multi-layer stands.

However, the disadvantage of the multi-layer stand is that the shelf of the high place needs to be taken out and lowered to the manpower of the workmanship so that it can be raised and put back after the manpower operation, and the process of taking out and putting back the manpower is quite laborious and inconvenient, especially at the higher end. The less the shelf is difficult to reach, therefore, the provision of a power mechanical horizontal transmission device can make the agricultural technology operation using the multi-layer stand more convenient.

In view of the above, the present inventors have studied the above needs, and conceived to develop a novel horizontal transmission device of a multi-layer stand, wherein at least one horizontal transmission mechanism is disposed at least one horizontally movable position along the vertical column by at least one motor frame On the L-shaped frame strip, the direction of the elastic linkage shaft is changed by the directional arm to change the relative angle and distance between the horizontal transmission mechanism and one of the plurality of vertical shelves, so that the horizontal transmission mechanism can be borrowed The first guide wheel clamps or releases the pull-type shelf; and is disposed in the same direction as a driving of a motor by contacting a first guide wheel and a second guide wheel of the pull-type shelf through a transmission chain Rotating to derive or introduce the pull-type shelf; the first bead of the first guide wheel and the second bead of the second guide wheel are elastic, and can adapt to the change of the diameter of the pull-up shelf, In order to maintain sufficient clamping force and friction force; the elastic linkage shaft has a first spring to adapt to the angular variation of the horizontal transmission mechanism, so that the transmission chain can maintain proper tension; and the motor frame and the L-shaped frame Take a pivotal connection between the bars A second opposing spring, in the direction of the arm at a third set of the associated motor The springs all make the horizontal transmission of the multi-layer stand of the present invention operate smoothly and smoothly, and are convenient for taking out or putting into the pull-up shelf of the multi-layer stand.

It is an object of the present invention to provide a horizontal drive for a multi-layer stand that can be angled between horizontal drive mechanisms to grip any pull-out shelf in a multi-layer stand.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a horizontal transmission of a multi-layer stand which can be horizontally led out by any one of the pull-type shelves clamped by the horizontal drive mechanism.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a horizontal transmission of a multi-layer stand having elasticity that accommodates variations in the diameter of any of the pull-type shelves that are clamped by the horizontal drive.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a horizontal transmission of a multi-layer stand having an elasticity adapted to accommodate angular variations of the horizontal drive mechanism such that the two drive chains in the two horizontal drive mechanisms maintain proper tension.

In order to achieve the above object, the present invention provides a horizontal transmission device for a multi-layer stand comprising at least one L-shaped frame strip, at least one motor frame and at least one horizontal transmission mechanism, the horizontal transmission mechanism comprising a motor, a first a guide wheel, a second guide wheel, a transmission chain, an elastic linkage shaft and a directional arm; the L-shaped frame strip is slidably lifted along at least one column by a lifting device; the motor frame is disposed at the L One end of the frame strip is pivotally connected to the L-shaped frame strip by a first pivot; the first guide wheel is disposed on the motor and penetrates through the first axis, and can be divided into a first tire part And a first sprocket; the second guide wheel is penetrated by a second axis, and can be divided into a second tire portion and a second sprocket; the transmission chain is spanned on the first sprocket and the first a second sprocket; the elastic linkage shaft has one end connected to the second shaft and the other end pivotally connected to the motor by a second pivot, and includes a first spring, an inner limiting portion and an outer limiting portion. The first spring is disposed between the inner limiting portion and the outer limiting portion; the directional arm is coupled to the motor and the The elastic linkage shaft can be a pneumatic push rod or a hydraulic push rod.

The horizontal transmission device of the present invention can be symmetrically disposed such that the two L-shaped frame strips are located on opposite sides of a fixed frame including a plurality of columns, and the two L-shaped frame strips are respectively located on one side of at least one of the columns, and cooperate with one The lifting device is arranged such that the two L-shaped frame strips are respectively synchronously raised and lowered along the same columns on the same side thereof; the two L-shaped frame strips are used for supporting by a plurality of layers One of the pull-out shelves is taken out from the rack, and the array rollers are symmetrically arranged under the two long sides of the pull-type shelf, so that the rollers roll along the inner side of the two L-shaped frame strips, so as to facilitate the two horizontal transmission mechanisms. Exporting and moving the pull-out shelf horizontally onto the two L-shaped frame strips; the motor frame is configured to carry the horizontal transmission mechanism, and the second spring is disposed between the motor frame and the L-shaped frame strip Pivoting the motor frame and the first pivot of the L-shaped frame strip so that the angle between the motor frame and the L-shaped frame strip can be loosened to a limited extent; the horizontal transmission mechanism is disposed on the motor frame And causing the second guide wheel to protrude outside the range of the L-shaped frame; the motor is a speed reduction motor controlled by a frequency converter, can change the speed and torque of the output, and drive a first axis, which runs through the The first guide wheel of the first axis rotates with the first axis, and rotates with the second chain through the first sprocket and the second chain; the directional arm can change the elastic linkage axis Direction, the distance between the second guide wheel and the pull-up shelf is elongated or shortened to clamp Or releasing the pull-type shelf, and the directional arm and the motor are connected with an elastic buffering device to buffer the stress when the directional arm is actuated; the elastic linking shaft is adjusted through the spring inside the adjusting shaft The distance between the limiting portion and the outer limiting portion, that is, the distance between the second axis and the motor, to maintain the tension of the transmission chain to prevent the chain from falling off or rotating poorly; the first portion and the first portion The second portion has elasticity and can adapt to the change of the diameter of the pull-up shelf to provide sufficient positive force to cause friction between the first and second tires when the second tire is rotated And pulling or introducing the pull-type shelf by friction; through the arrangement of the components, the horizontal transmission of the multi-layer stand of the present invention is smoothed, and the user is allowed to take out the multi-layer stand through mechanical force Pull-out shelf.

In order to give the review board members a better understanding and understanding of the structural features and the efficacies of the present invention, the preferred embodiment and the detailed description will be given to illustrate the following: horizontal drive of the multi-layer stand of the present invention. The device is characterized in that: at least one horizontal transmission mechanism can change the angle of an elastic linkage shaft by a directional arm, respectively, so that the distance between a second guide wheel and a pull-type shelf is changed to clamp Or releasing a pull-out shelf; and powering a motor and engaging a drive chain to cause the first guide wheel and the second guide The wheel rotates in the same direction, and the pull-type shelf is horizontally led or introduced; the first tire portion of the first guide wheel and the second tire portion of the second guide wheel are elastic, and can be adapted to the pull-type shelf The frame diameter is varied to maintain sufficient clamping and frictional forces; the resilient linkage shaft has a spring that accommodates the angular variation of the horizontal drive mechanism to maintain proper tension of the drive chain.

First, please refer to the first figure and the second figure, which are a schematic diagram of a simple structure of the first embodiment of the present invention and a schematic diagram of a multi-layered stand structure of the first embodiment; as shown in the figure, the horizontal drive of the multi-layer stand of the present embodiment The device 1 includes a fixing frame 10, two L-shaped frame bars 11, two motor frames 13 and two horizontal transmission mechanisms 12, the fixing frame 10 includes a rectangular beam frame 100 and four vertical columns 102; the two L-shaped frame bars 11 are The motor frame 13 is disposed at one end of the two L-shaped frame strips 11 and is pivotally connected to the two L-shaped frame strips 11 respectively. The two horizontal transmission mechanisms 12 are respectively disposed on the two motor frames 13 such that the two horizontal transmission mechanisms 12 are also located on the outer side of the two L-shaped frame strips 11.

A multi-layer stand 3 is provided with a plurality of symmetrically arranged plurality of rails 32 at equal intervals between the four pillars 30. Each of the second-highest pillars 32 is provided with a pull-out shelf 34, and each of the pull-up shelves 34 The plurality of rollers 340 are symmetrically disposed below the long sides of the two sides of the pull-type shelf 34. The pull-type shelf 34 can be pulled out in an A direction and pushed in a B direction. When the user wants to take out one of the pull-type shelves 34, the two L-shaped frame strips 11 can be raised to the same height as the pull-type shelf 34 by a lifting device 2, and then disposed on the two L-shaped frames. The two horizontal transmission mechanisms 12 on the outer sides of the front end of the frame strip 11 are horizontally led out of the trailing edge A direction, and the rollers 340 can support the pull-type shelf 34 The support rails 32 roll and enter the two L-shaped frame strips 11, so that the two long sides of the pull-type shelf 34 are superposed on the two L-shaped frame strips 11 and descend to the artificial with the two L-shaped frame strips 11 The height at which operations can be performed. After the manual operation is completed, the two L-shaped frame strips 11 are raised by the lifting device 2 to the same height as the two supporting rails 32 supporting the drawing type shelf 34, and the horizontal transmission mechanism 12 pulls the drawing. The shelf 34 is pushed into the multi-layer stand 3 along the two rails 32 in the B direction.

Please refer to the third to sixth figures, which are the horizontal transmission mechanism of the first embodiment of the present invention. Schematic diagram of the structure, a schematic view of the horizontal transmission mechanism of the first embodiment, a schematic diagram of the actuation relationship of the first embodiment (1), and a schematic diagram of the actuation relationship of the first embodiment (2); as shown in the third and fourth figures, The two motor frames 13 are respectively pivotally connected to the outer ends of the two front ends of the two L-shaped frame strips 11 by two first pivots 130, and the inner sides of the two motor frame 13 are in contact with the two L-shaped frame strips 11 respectively. Two springs 132 (refer to the fifth or sixth figure), the two horizontal transmission mechanisms 12 (refer to the first figure) are respectively disposed on the two motor frames 13, such that the two horizontal transmission mechanisms 12 are located in the two L-shaped The outer side of the frame strip 11 and the two horizontal transmission mechanisms 12 are partially protruded from the two L-shaped frame strips 11 (in the figure, represented by a single-sided structure). The two horizontal transmission mechanisms 12 each include a motor 120 that drives a first axis 121, a first guide wheel 123 that is penetrated by the first axis 121, and a second guide that is penetrated by a second axis 122. The wheel 124 is pivotally connected to the drive chain 127 of the first guide wheel 123 and the second guide wheel 124, and is coupled to the motor 120 via a second pivot 1256 and is elastically coupled to the second shaft 122. The linkage shaft 125 and the elastic linkage shaft 125 and the one direction arm 126 of the motor 120 are simultaneously connected.

The first guide wheel 123 includes a first tire 1230 and a first sprocket 1232. The first sprocket 1232 is disposed under the first tire 1230. The second guide wheel 124 includes a second tire. a portion 1240 and a second sprocket 1242, the second sprocket 1242 is disposed under the second portion 1240; the transmission chain 127 is spanned across the first sprocket 1232 and the second sprocket 1242; One end of the linking shaft 125 is connected to the second shaft 122, and the other end is pivotally connected to the motor 120 by a second pivot 1256. The elastic linking shaft 125 includes a first spring 1250 and an inner limiting portion. 1252 and an outer limiting portion 1254, the first spring 1250 is disposed between the inner limiting portion 1252 and the outer limiting portion 1254; an elastic buffer device 1260 is disposed at a connection between the directional arm 126 and the motor 120. (See Figure 5 or Figure 6).

When the motor 120 drives the first shaft 121 to rotate, the first guide wheel 123 penetrated by the first shaft 121 rotates in the same direction as the motor 120, and the first sprocket 1232 transmits through the transmission chain 127. The second sprocket 1242 is rotated to make the structure of the second guide wheel 124 disposed on the second axis 122 in the same direction as the first guide wheel 123 and the motor 120. Rotating; the directional arm 126 can be a pneumatic push rod or a hydraulic push rod, which can control the direction of the elastic linking shaft 125, thereby changing the two second tire portions 1240 of the front end of the two horizontal transmission mechanism 12 and The relative distance between the pull-out shelves 34; the length of the elastic linking shaft 125 can be automatically adjusted through the spring 1250 sandwiched between the inner limiting portion 1252 and the outer limiting portion 1254; the inner side of the motor frame 13 is The second spring 132 (refer to the fifth or sixth figure) disposed at the contact of the L-shaped frame strip 11 and the first pivot 130 can limit the angle between the motor frame 13 and the L-shaped frame strip 11 The grounding arm is loosened or tensioned; and the directional arm and the motor are connected with an elastic buffering device (not shown) including a third spring to buffer the stress when the directional arm is actuated.

As shown in the fifth and sixth figures, when the pull-out shelf 34 is taken out by using the horizontal transmission of the multi-layer stand of the present invention (that is, the pull-type shelf 34 is pulled by the 34A position shown in the sixth figure) Up to the position of the 34B), the two elastic linking shafts 125 are first pulled apart by the two-direction arm 126 (as shown in FIG. 6 ), so that the two second tire portions 1240 and the pull-up shelf 34 are The second distance 1240 is located on the outer side of the two rails 32 and the pull-out shelf 34A, and does not overlap with the two rails 32 and the pull-up shelf 34A. Contacting; raising or lowering the two L-shaped frame strips 11 to the same height as the pull-type shelf 34A, and pushing the two elastic linking shafts 125 to the inner side by the two-direction arms 126, so that the two second guide wheels The relative distance between the 124 and the pull-up shelf 34 is reduced, and the two second portions 1240 are respectively in contact with the two sides of the pull-up shelf 34A (as shown in FIG. 5). The power provided by the two motors 120 and the transmission of the two first sprocket 1232, the two transmission chain 127 and the two second sprocket 1242 (the fifth and sixth figures omitting the sprocket and the transmission chain) Referring to the third or fourth figure, the second second portion 1240 is rotated against the pull-up shelf 34, and the pull-out shelf 34 is gradually led out, so that the two first portions 1230 are also Contacting the pull-type shelf 34 and rotating against the pull-up shelf 34, the pull-type shelf 34 can be applied due to the tire pressure of the two first tire portions 1230 and the two second tire portions 1240 The positive force, the pull-type shelf 34 is caused by the frictional force generated when the two first tread portions 1230 and the second second portion 1240 are closely rotated, and the two horizontal transmission mechanisms 12 are relatively displaced. And make The pull-type shelf 34 is horizontally led out; when the pull-type shelf 34 completely leaves the two-rail 32 and overlaps the two L-shaped frame strips 11 (ie, at position 34B of the sixth figure), the two directions The arm 126 pulls the two elastic linkage shafts 125 to both sides, and releases the pull-up shelf 34B. When the pull-type shelf 34 is led out, the first tread portion 1230 and the second tread portion 1240 of the horizontal transmission mechanism 12 on the right side in the fifth figure are rotated counterclockwise in the direction of A2, and the horizontal transmission mechanism 12 on the left side is One of the tread portions 1230 and the second tread portion 1240 are rotated clockwise in the direction of A3, and the pull-type shelf 34 is horizontally moved in the direction of A1.

When the pull-type shelf 34 is pushed back to support the two rails 32 of the pull-up shelf 34 by using the horizontal transmission of the multi-layer stand, the two-elastic linkage shaft 125 is first held by the two-direction arm 126. The state in which the two sides are pulled apart (as shown in the sixth figure) is such that the relative distance between the second second portion 1240 and the pull-up shelf 34 is increased, so that the second second portion 1240 does not The rails 32 are in contact with or collided; the two L-shaped strips 11 are raised or lowered to the same height as the two rails 32, and the two elastic linkage shafts 125 are pushed inwardly to push the second tire portions 1240 and The relative distance between the pull-up shelves 34 is pulled to guide the pull-type shelf 34 horizontally between the two-rails 32, so that the motor 120 rotates in the opposite direction to that when taken out, via the second a sprocket 1232, a transmission of the two transmission chains 127 and the two second sprocket 1242 (refer to the third or fourth figure), so that the two first tread portions 1230 and the second second tread portions 1240 are in close contact with each other The pull-type shelf 34 rotates, and the positive force generated by the two first tire portions 1230 and the second tire portions 1240 is generated on the pull-type shelf 34 and rotated. The pulling force generated by the pull-up shelf 34 causes a relative displacement between the pull-type shelf 34 and the two-level transmission mechanism 12 to push the pull-up shelf 34 horizontally; the pull-out shelf When the two L-shaped frame strips 11 are completely separated from the two L-shaped frame strips 11 and returned to the upper side of the two-sided rails 32 (ie, in the position of 34A in the sixth figure), the two-direction arm 126 pulls the two elastic linking shafts 125 to the sides. The pull-up shelf 34A is opened. When the pull-type shelf 34 is introduced, the first tread portion 1230 and the second tread portion 1240 of the horizontal transmission mechanism 12 on the right side in the fifth figure rotate clockwise in the direction of B2, and the horizontal transmission mechanism 12 on the left side The one tread 1230 and the second tread 1240 are rotated counterclockwise in the direction of B3, and the pull frame 34 is horizontally moved in the direction of B1. move.

In addition, the elasticity of the two first tire portions 1230 and the second second tire portions 1240 can be adapted to the change of the diameter of the pull-type shelf, so that the process of deriving the pull-type shelf 34 is smoother; The design of the interlocking shaft 125 is to adjust the distance between the inner limiting portion 1252 and the outer limiting portion 1254 by using the spring 1250 inside the elastic linking shaft 125 to change the length of the elastic linking shaft 125 to be subjected to the elasticity. The distance between the second shaft 122 connected to the pivoting shaft 125 and the pivoted motor 120 can be automatically adjusted to maintain the transmission chain 127 spanning the first sprocket 1232 and the second sprocket 1242. With proper tension, the relative position and distance between the second shaft 122 and the motor 120 are changed when the elastic linkage shaft 125 is pushed and pulled by the directional arm 126, so that the transmission chain 127 is driven by the first sprocket 1232. The first sprocket 1242 is detached from the second sprocket 1242, or the transmission is not smooth. The motor frame 13 and the L-shaped frame 11 are pivotally connected by a first pivot 130, and the motor frame 13 and the L are inside. The second frame 132 is disposed at the contact point of the frame strip 11 to enable the motor frame 13 and the L-shaped frame strip 11 The angle between the two second portions 1240 and the pull-up shelf 34 can be adjusted. The elastic buffer device 1260 of the direction of the directional arm 126 and the motor 120 can include a A third spring (not shown) is disposed to cushion the stress generated by the directional arm 126 when actuated.

In summary, the horizontal transmission device of the multi-layer stand of the present invention can change the angle of the horizontal transmission mechanism and the distance to the pull-type shelf by the direction arm thereof to clamp or release the pumping Pulling the shelf; and the motor can drive the first guide wheel, and simultaneously interlocking the second guide wheel with the drive chain, so that the first guide wheel and the second guide wheel rotate in the same direction to the pull-up layer The frame is horizontally led or pushed in; and the first tread portion of the first guide wheel and the second tread portion of the second guide wheel have elasticity, which can adapt to the change of the frame diameter of the pull-type shelf; The linkage shaft has elasticity to accommodate the angular variation of the horizontal transmission mechanism, so that the transmission chain can maintain an appropriate tension; the second spring is arranged to help adjust the distance between the second guide wheel and the pull-up shelf. The elastic buffer device is arranged to buffer the stress of the directional arm; and the horizontal transmission device of the multi-layer stand of the present invention is actuated by the arrangement of the components It is smooth and easy for the user to take out the pull-out shelf in the multi-layer stand by mechanical force.

Therefore, the present invention is a novelty, progressive and available for industrial use. It should be in accordance with the patent application requirements stipulated in the Patent Law of China. It is undoubtedly proposed to create a patent application according to law, and the Prayer Council will grant the patent as soon as possible. prayer.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and the variations, modifications, and modifications of the shapes, structures, features, and spirits described in the claims of the present invention. All should be included in the scope of the patent application of the present invention.

1‧‧‧Horizontal drive for multi-story stand

10‧‧‧ Fixing frame

11‧‧‧L type frame

12‧‧‧Horizontal drive mechanism

120‧‧‧Motor

121‧‧‧first axis

122‧‧‧Second axis

123‧‧‧First guide wheel

1230‧‧‧First Part

1232‧‧‧First sprocket

124‧‧‧Second guide wheel

1240‧‧‧second part

1242‧‧‧Second sprocket

125‧‧‧Flexible linkage shaft

1250‧‧‧First spring

1252‧‧‧Limited Department

1254‧‧‧Outside Department

1256‧‧‧second pivot

126‧‧‧direction arm

1260‧‧‧elastic buffer

127‧‧‧Drive sprocket

13‧‧‧Motor frame

130‧‧‧First pivot

132‧‧‧Second spring

2‧‧‧ lifting device

3‧‧‧Multi-layer stand

30‧‧‧ pillar

32‧‧‧ Tracks

34‧‧‧Through shelf

34A‧‧‧Through shelf

34B‧‧‧Through shelf

340‧‧‧Roller

A‧‧‧ Direction A

A1‧‧‧ Direction A1

A2‧‧‧ Direction A2

A3‧‧‧ Direction A3

B‧‧‧ Direction B

B1‧‧‧ Direction B1

B2‧‧‧ Direction B2

B3‧‧‧ Direction B3

1 is a schematic structural view of a first embodiment of the present invention; FIG. 2 is a schematic structural view of a multi-layered stand according to a first embodiment of the present invention; and FIG. 3 is a schematic structural view of a horizontal transmission mechanism according to a first embodiment of the present invention; 4 is a side cross-sectional view of a horizontal transmission mechanism according to a first embodiment of the present invention; FIG. 5 is a schematic diagram of an actuation relationship according to a first embodiment of the present invention; and a sixth diagram is an actuation relationship of the first embodiment of the present invention; Schematic (2).

11‧‧‧L type frame

120‧‧‧Motor

121‧‧‧first axis

122‧‧‧Second axis

123‧‧‧First guide wheel

1230‧‧‧First Part

1232‧‧‧First sprocket

124‧‧‧Second guide wheel

1240‧‧‧second part

1242‧‧‧Second sprocket

125‧‧‧Flexible linkage shaft

1250‧‧‧First spring

1252‧‧‧Limited Department

1254‧‧‧Outside Department

1256‧‧‧second pivot

127‧‧‧Drive sprocket

13‧‧‧Motor frame

130‧‧‧First pivot

32‧‧‧ Tracks

34‧‧‧Through shelf

340‧‧‧Roller

Claims (9)

The horizontal transmission device of the multi-layer stand comprises: at least one L-shaped frame strip; at least one motor frame is disposed at one end of the L-shaped frame strip and pivotally connected to the L-shaped frame strip by a first pivot; And at least one horizontal transmission mechanism is disposed on the motor frame, and includes: a motor driving a first axis; a first guide wheel disposed on the motor, passing through the first axis, and The first guide portion and a first sprocket are included; a second guide wheel is passed through a second shaft and includes a second tire portion and a second sprocket; a transmission chain is spanned The first sprocket and the second sprocket; an elastic linkage shaft having one end connected to the second shaft and the other end pivotally connected to the motor by a second pivot; and a directional arm connecting the shaft The motor is coupled to the elastic shaft. The horizontal transmission device of the multi-layer stand according to claim 1, wherein the L-shaped frame strip is driven by a lifting device, and the sliding is carried out along at least one of the columns. The horizontal transmission device of the multi-layer stand according to the first aspect of the invention, wherein the elastic linkage shaft system comprises a first spring, an inner limiting portion and an outer limiting portion, wherein the first spring system is disposed on the horizontal transmission device Between the inner limiting portion and the outer limiting portion. The horizontal transmission device of the multi-layer stand according to the first aspect of the invention, wherein the motor frame and the L-frame strip pivotally connected to the motor frame are provided with a second spring. The horizontal transmission device of the multi-layer stand according to claim 1, wherein the directional arm is a pneumatic push rod. The horizontal transmission device of the multi-layer stand according to claim 1, wherein the directional arm is a hydraulic push rod. The horizontal transmission device of the multi-layer stand according to claim 1, wherein an elastic buffering device is disposed at a connection between the directional arm and the motor. The horizontal transmission device of the multi-layer stand according to claim 7, wherein the elastic buffer device comprises a third spring. The horizontal transmission device of the multi-layer stand according to claim 1, wherein the motor is a one-speed reduction motor controlled by a frequency converter.