Light plate fork

Abstract

The utility model provides a light plate fork which comprises a plate fork assembly, a light plate fork assembly, a light plate fork assembly and a light plate fork assembly. A top plate fork; a driven belt wheel assembly and a driven synchronous belt are arranged on the middle plate fork; a connecting assembly; the guide wheel assembly is used for enabling the middle plate fork to move on the basic plate fork; and / or the guide wheel assembly is used for enabling the top plate fork to move on the middle plate fork; and the driving assembly is used for driving the driving belt wheel and / or the driving synchronous belt to rotate. The base plate fork, the middle plate fork and the top plate fork slide towards the two sides through the guide wheel assemblies and the connecting assemblies, the structure is simple, the weight is light, the energy consumption is low, the manufacturing cost is low, the structural design of the synchronous belt and the belt wheels is adopted, the operation speed is high, the efficiency is high, and later maintenance is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent warehousing technology, and in particular relates to a lightweight plate fork. Background Technology

[0002] Currently available pallet forks are mostly designed for heavy-duty stacker cranes. They have complex structures, high manufacturing costs, and are cumbersome to manufacture and install. They are also quite heavy. In practical applications, light-weight goods often require high-load-bearing pallet forks, resulting in excessive load capacity, excessive energy consumption, and low transmission efficiency due to the use of sprockets and chains. Furthermore, the sprocket and chain transmission mechanisms require cumbersome daily maintenance, frequent upkeep, and are prone to oil contamination, making the overall design appear unclean. Summary of the Invention

[0003] To address at least one technical problem in the prior art, this utility model provides a lightweight plate fork that consumes little energy and is easy to maintain. To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0004] This utility model embodiment provides a lightweight plate fork, including:

[0005] Plate fork assembly, extending along a first direction, the plate fork assembly comprising:

[0006] The base plate fork has drive pulleys at both ends, and a drive synchronous belt is wound around the two drive pulleys.

[0007] A top plate fork, located on one side of the base plate fork, is used to place goods;

[0008] An intermediate plate fork is disposed between the base plate fork and the top plate fork. Both ends of the intermediate plate fork are provided with driven pulley assemblies. Each driven pulley assembly is provided with a driven synchronous belt. One end of each driven synchronous belt is disposed on one side of the intermediate plate fork and the other end is disposed on the other side of the intermediate plate fork.

[0009] Connection components, including:

[0010] An active connection component is disposed on the side of the base plate fork near the intermediate plate fork and fixedly mounted on the active timing belt; the active connection component is fixedly connected to the intermediate plate fork.

[0011] Driven connection components, each of the driven synchronous belts is provided with driven connection components at both ends, and on each of the driven synchronous belts, one driven connection component is fixedly connected to the base plate fork and the other driven connection component is fixedly connected to the top plate fork;

[0012] A guide wheel assembly for moving the intermediate plate fork on the base plate fork; and / or, the guide wheel assembly for moving the top plate fork on the intermediate plate fork;

[0013] A drive assembly for driving the drive pulley and / or the drive timing belt to rotate.

[0014] Further, the active connection component and / or the passive connection component includes:

[0015] The first clamping plate is used to securely connect the plate fork assembly;

[0016] The second clamping plate is parallel to and fixedly connected to the first clamping plate, and the active synchronous belt or the driven synchronous belt passes through the space between the first clamping plate and the second clamping plate.

[0017] Furthermore, the first clamping plate has a toothed strip on the side near the second clamping plate;

[0018] And / or, the second clamping plate has a toothed strip on the side near the first clamping plate.

[0019] Furthermore, the first clamping plate is provided with extensions on both sides, and the extensions are fixedly connected to the plate fork assembly.

[0020] Furthermore, the first clamping plate is provided with a first mounting hole.

[0021] The second clamping plate is provided with second mounting holes, the number and position of the second mounting holes corresponding one-to-one with the number and position of the first mounting holes;

[0022] It also includes mounting bolts, which are threadedly connected to the first mounting hole and the second mounting hole.

[0023] Furthermore, any one of the driven pulley assemblies includes two driven pulleys spaced apart, one driven pulley being located on the side of the intermediate plate fork near the top plate fork, and the other driven pulley being located on the side of the intermediate plate fork near the base plate fork;

[0024] Any of the driven pulley assemblies is wound around a driven synchronous belt.

[0025] Furthermore, the base plate fork has bent portions on both sides, and the two bent portions are arranged opposite to each other; and / or, the middle plate fork has bent portions on both sides, and the two bent portions are arranged opposite to each other;

[0026] The bending section is L-shaped and includes a fixedly connected vertical plate and a horizontal plate. The vertical plate extends toward the top plate fork, and the horizontal plate extends toward the middle of the plate fork assembly.

[0027] The guide wheel assembly is in rolling connection with the cross plate.

[0028] Furthermore, the guide wheel assembly includes:

[0029] A guide wheel plate is fixedly connected to the plate fork assembly and is located at one end of the horizontal plate away from the vertical plate;

[0030] The first guide wheel and the first guide wheel shaft, one end of the first guide wheel shaft is tactilely connected to one side of the guide wheel plate and the other end is fixedly connected to the first guide wheel, the first guide wheel rolls along one side of the horizontal plate;

[0031] The second guide wheel and the second guide wheel shaft, one end of the second guide wheel shaft is rolledly connected to the other side of the guide wheel plate, and the other end is fixedly connected to the second guide wheel, and the second guide wheel rolls along the other side of the horizontal plate.

[0032] Furthermore, the guide wheel plate is provided with through holes.

[0033] The guide wheel assembly further includes a third guide wheel, which is disposed in the through hole and is rotatably connected to the guide wheel plate.

[0034] The third guide wheel rolls along the end of the horizontal plate away from the vertical plate.

[0035] Furthermore, the drive assembly is disposed on the side of the base plate fork opposite to the intermediate plate fork, and the drive assembly includes:

[0036] The motor includes an output shaft;

[0037] The drive wheel is fixedly connected to the output shaft;

[0038] The first transmission wheel is located upstream of the driving wheel.

[0039] The second transmission wheel is located downstream of the driving wheel.

[0040] The active synchronous belt passes sequentially through the first transmission wheel, the active wheel, and the second transmission wheel, and is wound around the base plate fork.

[0041] The beneficial effects of the technical solution provided by this utility model embodiment are:

[0042] In this embodiment of the utility model, the base plate fork, the middle plate fork, and the top plate fork achieve sliding of the lightweight plate fork to both sides through the guide wheel assembly and the connecting assembly. The structure is simple, lightweight, energy-efficient, and low-cost. The structure design of the synchronous belt and pulleys results in fast operation, high efficiency, and easy maintenance. Attached Figure Description

[0043] Figure 1This is a schematic diagram of the lightweight plate fork in an embodiment of this utility model.

[0044] Figure 2 This is a schematic diagram of the structure of the lightweight plate fork extension fork in the embodiment of this utility model.

[0045] Figure 3 This is a left view of the lightweight plate fork in an embodiment of this utility model.

[0046] Figure 4 This is a schematic diagram of the structure of the base plate fork in an embodiment of this utility model.

[0047] Figure 5 This is a schematic diagram of the structure of the middle plate fork in an embodiment of this utility model.

[0048] Figure 6 This is a schematic diagram of the connecting component in an embodiment of the present utility model.

[0049] Figure 7 This is a schematic diagram of the guide wheel assembly in an embodiment of the present invention.

[0050] Figure 8 This is a schematic diagram of the structure of the driving component in an embodiment of this utility model. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0052] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0055] This utility model embodiment provides a lightweight plate fork, including:

[0056] Plate fork assembly 1 extends along a first direction A, and the plate fork assembly 1 includes:

[0057] A base plate fork 11 has drive pulleys 111 at both ends, and a drive synchronous belt 112 is wound around the two drive pulleys 111.

[0058] A top plate fork 12 is provided on one side of the base plate fork 11, and the top plate fork 12 is used to place goods;

[0059] An intermediate plate fork 13 is disposed between the base plate fork 11 and the top plate fork 12. Both ends of the intermediate plate fork 13 are provided with driven pulley assemblies 131. Each driven pulley assembly 131 is provided with a driven synchronous belt 132. One end of each driven synchronous belt 132 is disposed on one side of the intermediate plate fork 13, and the other end is disposed on the other side of the intermediate plate fork 13.

[0060] Connection component 2 includes:

[0061] An active connection component 21 is disposed on the side of the base plate fork 11 near the intermediate plate fork 13 and fixedly mounted on the active timing belt 112. The active connection component 21 is fixedly connected to the intermediate plate fork 13.

[0062] Driven connection component 22, each of the driven synchronous belts 132 is provided at both ends of the driven connection component 22, and on each of the driven synchronous belts 132, one driven connection component 22 is fixedly connected to the base plate fork 11 and the other driven connection component 22 is fixedly connected to the top plate fork 12;

[0063] Guide wheel assembly 3, the guide wheel assembly 3 being used to move the intermediate plate fork 13 on the base plate fork 11; and / or, the guide wheel assembly 3 being used to move the top plate fork 12 on the intermediate plate fork 13;

[0064] Drive component 4 is used to drive the drive pulley 111 and / or the drive timing belt 112 to rotate.

[0065] In a specific embodiment, such as Figure 1 , Figure 2 , Figure 3 As shown, the top plate fork 12, the middle plate fork 13, and the base plate fork 11 are arranged sequentially from top to bottom. During operation, the position of the base plate fork 11 remains fixed. Since the active timing belt 112 is wound around the active pulleys 111 at both ends of the base plate fork 11, and the active connecting component 21 is also fixedly connected to the active timing belt 112, when the driving component 4 drives the active timing belt 112 to rotate, the active timing belt 112 can drive the rotation of the active pulleys 111, and can also drive the active connecting component 21 above the base plate fork 11 to move in the left and right directions. Since the active connecting component 21 is fixedly connected to the middle plate fork 13, the active connecting component 21 can drive the middle plate fork 13 to move in the left and right directions.

[0066] The driven pulley assemblies 131 are provided at both ends of the intermediate plate fork 13, and each of the driven pulley assemblies 131 is provided with a driven synchronous belt 132, such as Figure 5 As shown, the left and right ends of the intermediate plate fork 13 are respectively connected to a driven pulley assembly 131, and a driven synchronous belt 132 is provided on both the driven pulley assembly 131 at the left end and the driven pulley assembly 131 at the right end.

[0067] Furthermore, since one end of the driven synchronous belt 132 is located on one side of the intermediate plate fork 13 and the other end is located on the other side of the intermediate plate fork 13, and the driven connecting assembly 22 is provided at both ends of the driven synchronous belt 132, such as Figure 5As shown, both ends of the driven synchronous belt 132 on the left and both ends of the driven synchronous belt 132 on the right are connected to the driven connecting assembly 22. The upper end of the driven synchronous belt 132 is located on the upper side of the intermediate plate fork 13 and is fixedly connected to the driven connecting assembly 22. The lower end of the driven synchronous belt 132 is located on the lower side of the intermediate plate fork 13 and is fixedly connected to the driven connecting assembly 22. At the same time, the upper driven connecting assembly 22 is fixedly connected to the top plate fork 12, and the lower driven connecting assembly 22 is fixedly connected to the base plate fork 11. During operation, the position of the base plate fork 11 is fixed, and therefore the position of the lower driven connecting assembly 22 is also fixed. When the intermediate plate fork 13 moves to both sides, it can drive the upper driven connecting assembly 22 to move, thereby driving the top plate fork 12 to move.

[0068] More specifically, taking the right end of the intermediate plate fork 13 as an example, the right end of the intermediate plate fork 13 is provided with the driven pulley assembly 131 and the driven synchronous belt 132. During operation, the base plate fork 11 remains fixed, and consequently, the lower end of the driven synchronous belt 132 and the position of the driven connecting assembly 22 thereon remain fixed. When the intermediate plate fork 13 moves to the right, the driven pulley assembly 131 at the right end rotates, causing the driven connecting assembly 22 at the upper end of the driven synchronous belt 132 at the right end to move to the right, thereby driving the top plate fork 12 to move to the right. Similarly, when the intermediate plate fork 13 moves to the left, the driven connecting assembly 22 at the upper end of the driven synchronous belt 132 at the left end moves to the left, driving the top plate fork 12 to move to the left. The structure is simple. The base plate fork 11, the middle plate fork 13, and the top plate fork 12 can be made of aluminum alloy, which further reduces the overall weight of the lightweight plate fork and reduces energy consumption.

[0069] The specific configurations of the active connection component 21 and the driven connection component 22 described in this application are not limited. In one specific embodiment, the active connection component 21 and / or the driven connection component 22 include:

[0070] The first clamping plate 23 is used to fix the plate fork assembly 1;

[0071] The second clamping plate 24 is parallel to and fixedly connected to the first clamping plate 23 and the second clamping plate 24, and the active synchronous belt 112 or the driven synchronous belt 132 passes through the space between the first clamping plate 23 and the second clamping plate 24.

[0072] In a specific embodiment, such as Figure 4 and Figure 6As shown, taking the active connection component 21 as an example, the upper side is the first clamping plate 23, which is fixedly connected to the intermediate plate fork 13, and the lower side is the second clamping plate 24. The active synchronous belt 112 passes between the first clamping plate 23 and the second clamping plate 24, and the first clamping plate 23 and the second clamping plate 24 are fixedly connected to the active synchronous belt 112. When the active synchronous belt 112 moves, the first clamping plate 23 and the second clamping plate 24 move together with the active synchronous belt 112, thereby driving the intermediate plate fork 13 to move. The structure is simple, stable, and easy to install.

[0073] Furthermore, the first clamping plate 23 is provided with a toothed strip 241 on the side near the second clamping plate 24;

[0074] And / or, the second clamping plate 24 is provided with a toothed strip 241 on the side near the first clamping plate 23.

[0075] Taking the active connection component 21 as an example, such as Figure 4 and Figure 6 As shown, the toothed strip 241 can increase the friction between the active connecting component 21 and the active timing belt 112, thereby preventing slippage between the active connecting component 21 and the active timing belt 112 and ensuring the normal operation of the lightweight plate fork.

[0076] The shape and extension direction of the toothed strip 241 are not limited. For example, the toothed strip 241 can be a straight line or a wavy line. The extension direction of the toothed strip 241 can be parallel to the active synchronization belt 112, perpendicular to the active synchronization belt 112, or intersect with the extension direction of the active synchronization belt 112.

[0077] In a specific embodiment, such as Figure 4 As shown, the upper side of the second clamping plate 24 is provided with a straight toothed strip 241, and the extension direction of the toothed strip 241 is perpendicular to the extension direction of the active synchronization belt 112. The structure is simple, which makes the connection between the first clamping plate 23 and the second clamping plate 24 and the active synchronization belt 112 more compact.

[0078] Furthermore, the first clamping plate 23 is provided with extensions 231 on both sides, and the extensions 231 are fixedly connected to the plate fork assembly 1.

[0079] like Figure 5As shown, taking the driven connecting assembly 22 at the upper end of the driven synchronous belt 132 on the left as an example, the upper side is the first clamping plate 23, and the lower side is the second clamping plate 24. The first clamping plate 23 is fixedly connected to the top plate fork 12. The extension 231 can increase the contact area between the first clamping plate 23 and the top plate fork 12, making the connection between the first clamping plate 23 and the top plate fork 12 more secure, thereby increasing the stability of the connection between the driven connecting assembly 22 and the top plate fork 12. The extension 231 and the plate fork assembly 1 can be connected by welding or by screw fixing.

[0080] The connection method between the first clamping plate 23 and the second clamping plate 24 is not limited. In a specific embodiment, such as... Figure 6 As shown, the first clamping plate 23 is provided with a first mounting hole.

[0081] The second clamping plate 24 is provided with a second mounting hole, the number and position of the second mounting hole correspond one-to-one with the number and position of the first mounting hole;

[0082] It also includes mounting bolts 25, which are threadedly connected to the first mounting hole and the second mounting hole.

[0083] The number and position of the first mounting hole, the second mounting hole, and the mounting bolt 25 are not limited, and the number and position of the first mounting hole, the second mounting hole, and the mounting bolt 25 can be adaptively adjusted according to actual needs. In a specific embodiment, such as... Figure 5 As shown, the first clamping plate 23 is provided with twelve first mounting holes, and the second clamping plate 24 is also provided with sixteen second mounting holes. Eight mounting bolts 25 pass through the first mounting holes and are threadedly connected to the second mounting holes, and another eight mounting bolts 25 pass through the second mounting holes and are threadedly connected to the first mounting holes. This structure is simple and stable. The distribution of the mounting bolts 25 ensures that the weight of the connecting assembly 2 remains balanced, avoiding the phenomenon that the active synchronous belt 112 or the driven synchronous belt 132 will twist due to the instability of the center of gravity caused by the weight on one side.

[0084] The specific configuration of the driven pulley assembly 131 described in this application is not limited. In a specific embodiment, any group of driven pulley assemblies 131 includes two driven pulleys spaced apart. One driven pulley is located on the side of the intermediate plate fork 13 near the top plate fork 12, and the other driven pulley is located on the side of the intermediate plate fork 13 near the base plate fork 11.

[0085] Each of the driven pulley assemblies 131 is provided for a driven synchronous belt 132 to be wound around.

[0086] like Figure 1 He Ru Figure 2 As shown, taking the middle plate fork 13 at the left end as an example, the two driven pulleys are spaced apart in the vertical direction. This structure can prevent the driven synchronous belt 132 from colliding with the middle plate fork 13, and ensure the normal operation of the driven synchronous belt 132.

[0087] The connection method between the guide wheel assembly 3 and the plate fork assembly 1 is not limited. In one specific embodiment, the base plate fork 11 is provided with bending portions 14 on both sides and the two bending portions 14 are arranged opposite to each other; and / or, the intermediate plate fork 13 is provided with bending portions 14 on both sides and the two bending portions 14 are arranged opposite to each other.

[0088] The bending portion 14 is L-shaped and includes a vertical plate 141 and a horizontal plate 142 that are fixedly connected. The vertical plate 141 extends toward the top plate fork 12, and the horizontal plate 142 extends toward the middle of the plate fork assembly 1.

[0089] The guide wheel assembly 3 is tactilely connected to the horizontal plate 142.

[0090] like Figure 1 and Figure 3 As shown, the base plate fork 11 has bending portions 14 on both sides, which are tactilely connected to the guide wheel assembly 3, so that the middle plate fork 13 can move on the base plate fork 11 via the guide wheel assembly 3; similarly, the middle plate fork 13 also has bending portions 14 on both sides, which are tactilely connected to the guide wheel assembly 3, so that the top plate fork 12 can move on the middle plate fork 13 via the guide wheel assembly 3.

[0091] The number of guide wheel assemblies 3 is unlimited. In the above embodiment, four sets of guide wheel assemblies 3 are provided on the bending portion 14 on any side of the base plate fork 11, and four sets of guide wheel assemblies 3 are also provided on the bending portion 14 on any side of the intermediate plate fork 13. The structure is stable, the plate fork assembly 1 moves smoothly, and the reliability is high.

[0092] The specific configuration of the guide wheel assembly 3 is not limited. In one specific embodiment, as shown in the figure, the guide wheel assembly 3 includes:

[0093] The guide wheel plate 31 is fixedly connected to the plate fork assembly 1 and is disposed at one end of the horizontal plate 142 away from the vertical plate 141;

[0094] The first guide wheel 32 and the first guide wheel shaft 33, one end of the first guide wheel shaft 33 is rotatably connected to one side of the guide wheel plate 31, and the other end is fixedly connected to the first guide wheel 32. The first guide wheel 32 rolls along one side of the horizontal plate 142.

[0095] The second guide wheel 34 and the second guide wheel shaft 35, one end of the second guide wheel shaft 35 is tumblingly connected to the other side of the guide wheel plate 31, and the other end is fixedly connected to the second guide wheel 34, and the second guide wheel 34 rolls along the other side of the horizontal plate 142.

[0096] Furthermore, the guide wheel plate 31 is provided with through holes.

[0097] The guide wheel assembly 3 further includes a third guide wheel 36, which is disposed in the through hole and is tactilely connected to the guide wheel plate 31. The third guide wheel 36 rolls along the end of the horizontal plate 142 away from the vertical plate 141.

[0098] In a specific embodiment, such as Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, taking the right-side bend 14 of the middle plate fork 13 as an example, the guide wheel plate 31 is vertically arranged and has a through hole in the middle. The third guide wheel 36 is provided in the through hole. The upper side of the guide wheel plate 31 is connected to the first guide wheel shaft 33. The first guide wheel 32 is fixedly connected to the first guide wheel shaft 33, and the lower side is connected to the second guide wheel shaft 35. The second guide wheel 34 is fixedly connected to the second guide wheel shaft 35. When the guide wheel assembly 3 moves along the horizontal plate 142, the first guide wheel 32 rolls simultaneously on the upper side of the horizontal plate 142, the second guide wheel 34 rolls simultaneously on the lower side of the horizontal plate 142, and the third guide wheel 36 rolls simultaneously at the left end of the horizontal plate 142. The first guide wheel 32, the second guide wheel 34, and the third guide wheel 36 can limit the rolling direction of the guide wheel assembly 3, preventing the guide wheel assembly 3 from deviating during movement, thereby ensuring that the top plate fork 12 can move back and forth along the first direction A. The structure is simple and the reliability is high. Similarly, the top plate fork 12 can also move along with the guide wheel assembly 3 on the bent portion 14 of the middle plate fork 13.

[0099] Furthermore, the drive assembly 4 is disposed on the side of the base plate fork 11 opposite to the intermediate plate fork 13, and the drive assembly 4 includes:

[0100] Motor 41, the motor 41 including an output shaft;

[0101] The drive wheel 42 is fixedly connected to the output shaft;

[0102] The first transmission wheel 43 is located upstream of the drive wheel 42.

[0103] The second transmission wheel 44 is located downstream of the drive wheel 42.

[0104] The active synchronous belt 112 passes sequentially through the first transmission wheel 43, the active wheel 42, and the second transmission wheel 44, and is wound around the base plate fork 11.

[0105] In a specific embodiment, such as Figure 8 As shown, the drive assembly 4 is located on the lower side of the base plate fork 11. When the motor 41 operates, the output shaft rotates, driving the drive wheel 42 to rotate. Since the drive synchronous belt 112 passes sequentially through the first transmission wheel 43, the drive wheel 42, and the second transmission wheel 44, the drive wheel 42 can drive the drive synchronous belt 112 to rotate. Furthermore, the drive wheel 42 is equipped with a rack, which increases the friction between the drive wheel 42 and the drive synchronous belt 112, preventing the drive synchronous belt 112 from slipping during movement and improving the reliability of the lightweight plate fork.

[0106] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lightweight plate fork, characterized in that, include: A plate fork assembly (1) extending along a first direction (A), the plate fork assembly (1) comprising: The base plate fork (11) has drive pulleys (111) at both ends, and drive synchronous belts (112) are wound around the two drive pulleys (111). A top plate fork (12) is provided on one side of the base plate fork (11), and the top plate fork (12) is used to place goods; An intermediate plate fork (13) is provided between the base plate fork (11) and the top plate fork (12). Both ends of the intermediate plate fork (13) are provided with driven pulley assemblies (131). Each driven pulley assembly (131) is provided with a driven synchronous belt (132). One end of each driven synchronous belt (132) is provided on one side of the intermediate plate fork (13), and the other end is provided on the other side of the intermediate plate fork (13). Connection component (2), including: An active connection component (21) is disposed on the side of the base plate fork (11) near the intermediate plate fork (13) and fixedly mounted on the active timing belt (112). The active connection component (21) is fixedly connected to the intermediate plate fork (13). Driven connection component (22), both ends of any driven synchronous belt (132) are provided with the driven connection component (22), on any driven synchronous belt (132), one driven connection component (22) is fixedly connected to the base plate fork (11), and the other driven connection component (22) is fixedly connected to the top plate fork (12). Guide wheel assembly (3), the guide wheel assembly (3) being used to move the intermediate plate fork (13) on the base plate fork (11); and / or, the guide wheel assembly (3) being used to move the top plate fork (12) on the intermediate plate fork (13); The drive assembly (4) is used to drive the drive pulley (111) and / or the drive timing belt (112) to rotate.

2. The lightweight plate fork as described in claim 1, characterized in that, The active connection component (21) and / or the passive connection component (22) include: The first clamping plate (23) is used to fix the plate fork assembly (1) in place. The second clamping plate (24) is parallel to and fixedly connected to the first clamping plate (23). The active synchronous belt (112) or the driven synchronous belt (132) passes between the first clamping plate (23) and the second clamping plate (24).

3. The lightweight plate fork as described in claim 2, characterized in that, The first clamping plate (23) has a toothed strip (241) on the side near the second clamping plate (24); And / or, the second clamping plate (24) is provided with a toothed strip (241) on the side near the first clamping plate (23).

4. The lightweight plate fork as described in claim 2, characterized in that, The first clamping plate (23) is also provided with extensions (231) on both sides, and the extensions (231) are fixedly connected to the plate fork assembly (1).

5. The lightweight plate fork as described in claim 2, characterized in that, The first clamping plate (23) is provided with a first mounting hole. The second clamping plate (24) is provided with a second mounting hole, the number and position of the second mounting hole correspond one-to-one with the number and position of the first mounting hole; It also includes mounting bolts (25), which are threadedly connected to the first mounting hole and the second mounting hole.

6. The lightweight plate fork as described in claim 1, characterized in that, Each of the following driven pulley assemblies (131) includes two driven pulleys spaced apart, one driven pulley being located on the side of the intermediate plate fork (13) near the top plate fork (12), and the other driven pulley being located on the side of the intermediate plate fork (13) near the base plate fork (11); Any of the driven pulley assemblies (131) is provided for a driven synchronous belt (132) to be wound around.

7. The lightweight plate fork as described in claim 1, characterized in that, The base plate fork (11) has bending portions (14) on both sides, and the two bending portions (14) are arranged opposite to each other; and / or, the middle plate fork (13) has bending portions (14) on both sides, and the two bending portions (14) are arranged opposite to each other; The bending section (14) is L-shaped and includes a fixedly connected vertical plate (141) and horizontal plate (142). The vertical plate (141) extends toward the top plate fork (12), and the horizontal plate (142) extends toward the middle of the plate fork assembly (1). The guide wheel assembly (3) is tumbledly connected to the cross plate (142).

8. The lightweight plate fork as described in claim 7, characterized in that, The guide wheel assembly (3) includes: The guide wheel plate (31) is fixedly connected to the plate fork assembly (1) and is located at one end of the horizontal plate (142) away from the vertical plate (141); The first guide wheel (32) and the first guide wheel shaft (33) are connected at one end to one side of the guide wheel plate (31) and at the other end to the first guide wheel (32). The first guide wheel (32) rolls along one side of the horizontal plate (142). The second guide wheel (34) and the second guide wheel shaft (35) are connected in a rolling manner at one end to the other side of the guide wheel plate (31) and in a fixed manner at the other end to the second guide wheel (34). The second guide wheel (34) rolls along the other side of the horizontal plate (142).

9. The lightweight plate fork as described in claim 8, characterized in that, The guide wheel plate (31) is provided with through holes. The guide wheel assembly (3) further includes a third guide wheel (36), which is disposed in the through hole and is rotatably connected to the guide wheel plate (31); The third guide wheel (36) rolls along the end of the horizontal plate (142) away from the vertical plate (141).

10. The lightweight plate fork as described in claim 1, characterized in that, The drive assembly (4) is located on the side of the base plate fork (11) opposite to the intermediate plate fork (13), and the drive assembly (4) includes: The motor (41) includes an output shaft; The drive wheel (42) is fixedly connected to the output shaft; The first transmission wheel (43) is located upstream of the driving wheel (42). The second transmission wheel (44) is located downstream of the driving wheel (42). The active synchronous belt (112) passes sequentially through the first transmission wheel (43), the active wheel (42), and the second transmission wheel (44), and is wound around the base plate fork (11).

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