Wafer packaging box transportation cart

Abstract

The utility model provides a wafer packaging box transportation cart which comprises a cart body, a plurality of conveying wheels, a plurality of conveying wheels and a plurality of conveying wheels. The cart body is internally provided with a space for containing wafer packaging boxes. The at least one horizontal folding piece is horizontally arranged in the trolley body to divide the interior of the trolley body into multiple layers, the horizontal folding piece is used for bearing a wafer packaging box, a receding hole is formed in the horizontal folding piece, the horizontal folding piece comprises a movable end and a fixed end, the fixed end is connected to the trolley body, and the movable end is connected to the trolley body. The movable end can slide horizontally so that the horizontal folding piece can be unfolded or folded horizontally. And the longitudinal folding piece is a flexible folding piece, the longitudinal folding piece comprises a lifting end and a limiting end, the limiting end is connected to the bottom of the vehicle body, and the lifting end penetrates through the horizontal folding piece through the receding hole in a lifting mode so as to divide each layer of space into a plurality of areas. The transport cart can prevent the wafer packaging box from being extruded and damaged in the horizontal direction and the vertical direction.

Description

Technical Field

[0001] This utility model relates to the field of wafer packaging box transportation devices, and in particular to a wafer packaging box transportation trolley. Background Technology

[0002] Trolleys are essential tools for placing and transporting wafer cassettes in semiconductor manufacturing plants. Currently, when using trolleys to transport wafer cassettes, the aim is usually to transport as many wafer cassettes as possible in a single trip while prioritizing safety. This inevitably leads to wafer cassettes being stacked, making the wafer cassettes on the bottom more susceptible to crushing. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a wafer packaging box transport trolley to solve the problem of stacking, squeezing and damage during the transport of wafer packaging boxes in the related art.

[0004] To achieve the above and other related objectives, this utility model provides a wafer packaging box transport trolley, comprising: a vehicle body, the interior of which is provided with space for accommodating wafer packaging boxes; at least one horizontal folding member, horizontally disposed within the vehicle body to divide the interior of the vehicle body into multiple layers, the horizontal folding member being used to carry the wafer packaging boxes, the horizontal folding member having clearance holes, the horizontal folding member including a movable end and a fixed end, the fixed end being connected to the vehicle body, the movable end being able to slide horizontally to allow the horizontal folding member to be horizontally unfolded or folded; and a longitudinal folding member, the longitudinal folding member being a flexible folding member, the longitudinal folding member including a lifting end and a limiting end, the limiting end being connected to the bottom of the vehicle body, the lifting end being able to be lifted and lowered through the clearance holes through the horizontal folding member to divide each layer of space into multiple areas.

[0005] Preferably, the vehicle body includes a bottom plate, a support plate, and four side plates. The bottom plate and the four side plates are arranged to form a cuboid. The support plate is horizontally disposed above the bottom plate and below the horizontal folding member. The edge of the support plate is fixed to the four side plates. The support plate is used to carry wafer packaging boxes. The support plate is provided with clearance holes for the lifting end to pass through. The limiting end is connected to the bottom plate.

[0006] Preferably, the vehicle body further includes a tray, which is horizontally connected to the outside of one of the side panels, and the side panel has a through hole. The fixed end is rotatably connected to the tray, the movable end passes through the through hole, and the horizontal folding member is slidably connected to the side panels located on both sides of the horizontal folding member. The tray is used to store the horizontal folding member when it is folded.

[0007] Preferably, the wafer packaging box transport trolley further includes a horizontal traction mechanism and a longitudinal traction mechanism. The horizontal traction mechanism is located on the vehicle body, and the movable end is connected to the horizontal traction mechanism and unfolds or folds horizontally under the drive of the horizontal traction mechanism. The longitudinal traction mechanism is located on the top of the vehicle body, and the lifting end is connected to the longitudinal traction mechanism and rises under the drive of the longitudinal traction mechanism, passing through the clearance hole and the horizontal folding member to divide each layer of space into multiple areas.

[0008] Preferably, the longitudinal traction mechanism includes a motor, a transmission rod, and a traction rope. The motor is connected to the vehicle body, the transmission rod is rotatably connected to the vehicle body and connected to the motor, and the traction rope is multi-stranded. All the multiple strands of the traction rope are wound around the transmission rod and connected to the longitudinal folding member. When the motor drives the transmission rod to rotate, the transmission rod retracts and expands the traction rope, so that the longitudinal folding member can be raised and unfolded or lowered and folded.

[0009] Preferably, the longitudinal folding member includes a first vertical member and a second vertical member, with a second vertical member respectively disposed on both sides of the first vertical member, and the first vertical member and the second vertical member are arranged perpendicularly.

[0010] Preferably, a plurality of second vertical members are provided on each side of the first vertical member, and the plurality of second vertical members are spaced apart along the first vertical member.

[0011] Preferably, the top end of the longitudinal folding member is provided with a rigid rod, which extends along the longitudinal folding member.

[0012] Preferably, the horizontal traction mechanism includes two rodless cylinders, which are respectively located at both ends of the movable end and are connected to the movable end.

[0013] Preferably, one side of the vehicle body is a transparent panel. The wafer packaging box transport trolley also includes a light sensor and a controller. The light sensor is located inside the vehicle body and is used to sense light intensity. The light sensor, the horizontal traction mechanism, and the vertical traction mechanism are all electrically connected to the controller. After the carrier plate is full of wafer packaging boxes, when the light intensity detected by the light sensor is lower than the preset light intensity, the controller first controls the vertical traction mechanism to pull the vertical folding piece upward to separate adjacent wafer packaging boxes, and the lifting end is lower than the horizontal folding piece. Then the controller controls the horizontal traction mechanism to pull the horizontal folding piece horizontally unfold.

[0014] As described above, the wafer packaging box transport trolley of this utility model has the following beneficial effects: The internal space of the transport trolley for accommodating wafer packaging boxes is divided into multiple layers by the horizontal folding mechanism. When the wafer packaging boxes are placed inside the trolley, they are placed vertically separately, thus preventing them from being crushed due to stacking. Furthermore, under the action of the longitudinal folding mechanism, the longitudinal folding mechanism can divide the internal space of the trolley into multiple areas in the horizontal direction, thereby achieving the purpose of separating adjacent wafer packaging boxes on the horizontal folding mechanism, thus preventing the wafer packaging boxes from being squeezed and damaged. Attached Figure Description

[0015] Figure 1 The diagram shown is a structural schematic of the wafer packaging box transport trolley of this utility model.

[0016] Figure 2 The diagram shown is a structural schematic of the horizontal folding component of this utility model.

[0017] Figure 3 The diagram shows the horizontal and vertical folding parts of this utility model.

[0018] Component designation explanation

[0019] 1. Horizontal folding component; 11. Partition; 110. Fixed end; 111. Movable end; 2. Longitudinal folding component; 21. First vertical component; 22. Second vertical component; 3. Controller; 4. Base plate; 41. Top plate; 42. Side plate; 43. Support plate; 44. Tray; 5. Motor; 51. Transmission rod; 52. Traction rope; 6. Light sensor. Detailed Implementation

[0020] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0021] Please see Figures 1-3 It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0022] This embodiment provides a wafer packaging box transport trolley. This wafer packaging box transport trolley is used to transport wafer packaging boxes; however, the intended use of the wafer packaging box transport trolley is not limited here.

[0023] The wafer packaging box transport trolley includes a body, a horizontal folding component 1, a longitudinal folding component 2, a horizontal traction mechanism, a longitudinal traction mechanism, and a controller 3 for controlling the horizontal and longitudinal traction mechanisms. The body is a hollow cuboid structure, including a bottom plate 4, a top plate 41, and four side plates 42. For ease of description, the side plates 42 are referred to as long side plates along the length of the body. Figure 1 The side panels 42 on the front and rear sides of the vehicle body, which are arranged along the width direction of the vehicle body, are called wide side panels 42. Figure 1 (Side panels 42 on the left and right sides). In this embodiment, at least one of the top panel 41 and the four side panels 42 on the vehicle body can be opened and closed to allow the wafer packaging box to be placed into the vehicle body. For example, if the top panel 41 can be opened and closed, then one side of the top panel 41 is hinged to one of the side panels 42.

[0024] To facilitate vehicle movement, casters can be installed on the vehicle's floor 4. A handle is provided on one of the long side panels 42 for easy operation and movement by the operator.

[0025] The vehicle body also includes a support plate 43 and a tray 44. The support plate 43 is horizontally spaced above the base plate 4. The edges of the support plate 43 are fixed to the four side plates 42 respectively. A clearance hole extending along the length of the vehicle body is opened in the middle of the support plate 43. The space between the support plate 43 and the base plate 4 is connected to the space on the support plate 43 through the clearance hole. The support plate 43 is used to support wafer packaging boxes.

[0026] The pallet 44 is horizontally connected to one of the wide side panels 42 and is located on the outside of the vehicle body. The pallet 44 is positioned higher than the support plate 43. The wide side panel 42 connected to the pallet 44 has a through hole to allow communication between the pallet 44 and the interior of the vehicle body. The other wide side panel 42 has a groove on its inner side, which extends along the width of the vehicle body.

[0027] like Figure 1 and Figure 2As shown, in this embodiment, the horizontal folding member 1 is disposed above the support plate 43. There is at least one horizontal folding member 1, and this embodiment uses one horizontal folding member 1 as an example for explanation. The horizontal folding member 1 includes multiple partitions 11, for example, the partitions 11 are rectangular. The multiple partitions 11 are arranged in parallel and along the length direction of the vehicle body, and adjacent partitions 11 are connected by hinges. The partitions 11 at both ends of the horizontal folding member 1 are a fixed end 110 and a movable end 111, respectively. The movable end 111 of the horizontal folding member 1 is horizontally slidably disposed inside the vehicle body. Specifically, the two oppositely arranged long side plates 42 are provided with guide rails or guide grooves, which are slidably connected to the edge of the horizontal folding member 1, so that the horizontal folding member 1 slides along the length direction of the vehicle body.

[0028] The fixed end 110 of the horizontal folding component 1 is rotatably connected to the tray 44. A horizontal traction mechanism is connected to the side panel 42 of the vehicle body and is also connected to the movable end 111. The horizontal traction mechanism drives the horizontal folding component 1 to move horizontally, achieving folding and unfolding states. When the horizontal folding component 1 is unfolded, the movable end 111 can be inserted into a slot. In other embodiments, the horizontal folding component 1 can be unfolded or folded manually.

[0029] In this embodiment, the horizontal folding member 1 has a clearance hole extending along the length of the vehicle body, and one end of the clearance hole passes through the movable end 111 of the horizontal folding member 1.

[0030] When the horizontal folding component 1 is unfolded, it is horizontally positioned above the support plate 43 and higher than the tray 44. In its unfolded state, the horizontal folding component 1 divides the space above the support plate 43 into two layers, allowing the operator to place wafer packaging boxes on both the horizontal folding component 1 and the support plate 43 simultaneously. Since wafer packaging boxes can also be placed on the horizontal folding component 1, more wafer packaging boxes can be accommodated within the vehicle body. When the horizontal folding component 1 is folded, i.e., the movable end 111 of the horizontal folding component 1 moves closer to the fixed end 110, it exits through the through-hole and folds into the tray 44. Understandably, the through-hole is large enough to allow the horizontal folding component 1 to pass smoothly through it.

[0031] In this embodiment, the longitudinal folding member 2 is made of a flexible material. The two ends of the longitudinal folding member 2 are a lifting end and a limiting end, respectively. The lifting end of the longitudinal folding member 2 is vertically movable within the vehicle body, and the limiting end is connected to the floor plate 4. A longitudinal traction mechanism is located at the top of the vehicle body and connected to the lifting end of the longitudinal folding member 2. A controller 3 controls the movement of the longitudinal traction mechanism. Under the control of the controller 3, the longitudinal traction mechanism can drive the lifting end to rise or fall a preset height each time, and this preset height is not greater than the floor height. When the lifting end is pulled by the longitudinal traction mechanism, it can move from below the support plate 43 through the clearance hole to above the support plate 43, thereby unfolding the longitudinal folding member 2. At this time, the longitudinal folding member 2 divides the space on the support plate 43 into two areas in the horizontal direction. When the longitudinal folding member 2 is folded, the lifting end, pulled by the longitudinal traction mechanism, can move from above the support plate 43 through the clearance hole to below the support plate 43, thereby folding the longitudinal folding member 2. At this time, the floor plate 4 supports the longitudinal folding member 2. Understandably, the clearance hole is large enough to be larger than the longitudinal folding member 2, so that the longitudinal folding member 2 can pass smoothly through the clearance hole.

[0032] When using a wafer packaging box transport trolley, two wafer packaging boxes can first be placed alternately on the support plate 43. Then, the longitudinal traction mechanism drives the lifting end of the longitudinal folding member 2 to rise, causing the longitudinal folding member 2 to unfold, with its lifting end lower than the horizontal folding member 1. At this time, the two wafer packaging boxes on the support plate 43 are separated, thus preventing them from colliding with each other. Then, the horizontal folding member 1 unfolds under the action of the horizontal traction mechanism. At this point, two more wafer packaging boxes can be placed on the horizontal folding member 1. Next, the longitudinal traction mechanism drives the longitudinal folding member 2 through the clearance hole of the horizontal folding member 1 to separate the two wafer packaging boxes on the horizontal folding member 1. Understandably, the clearance hole is large enough to allow the longitudinal folding member 2 to pass smoothly through it.

[0033] The horizontal traction mechanism can be a rodless cylinder (not shown in the figure). There are two rodless cylinders. When the two cylinders are respectively positioned on the outer sides of the two long side plates 42, each long side plate 42 has a rectangular hole extending along the length of the vehicle body. The rectangular hole is used to connect the rodless cylinder and the movable end 111 of the horizontal folding component 1. The movable end 111 achieves reciprocating motion under the drive of the rodless cylinder, thereby realizing folding or unfolding. In other configurations, the rodless cylinder can also be positioned on the inner side of the long side plate 42.

[0034] The longitudinal traction mechanism includes a motor 5, a transmission rod 51, and a traction rope 52. The motor 5 is mounted on one of the wide side plates 42. The motor 5 is connected to the transmission rod 51 via a gear set. The transmission rod 51 is positioned along the length of the vehicle body, and its two ends are rotatably connected to the two wide side plates 42 respectively. The traction rope 52 consists of multiple strands, all wound around the transmission rod 51 and connected to the lifting end. To prevent the longitudinal folding member 2 from wrinkling during folding, a rigid rod is provided at the top end (lifting end) of the longitudinal folding member 2. This rigid rod extends along the longitudinal folding member 2 and can freely pass through clearance holes and repositioning holes. When the motor 5 drives the transmission rod 51 to rotate, the transmission rod 51 retracts and expands the traction rope 52. When the traction rope 52 is retracted, it causes the lifting end to rise, thus unfolding the longitudinal folding member 2. When the traction rope 52 is released, the lifting end descends under gravity, thus folding the longitudinal folding member 2. Because the horizontal folding member 1 has a clearance hole, when the horizontal folding member 1 is unfolded, the traction rope 52 will enter the clearance hole, thereby avoiding interference between the traction rope 52 and the horizontal folding member 1. In other embodiments, the transmission rod 51 can be driven manually. In addition, to prevent the transmission rod 51 from rotating arbitrarily, a locking mechanism can be provided to lock the transmission rod 51.

[0035] like Figure 3 As shown, in other embodiments, the longitudinal folding member 2 includes an integrally formed first vertical member 21 and second vertical member 22. The first vertical member 21 extends along the length direction of the vehicle body, and the second vertical member 22 extends along the width direction of the vehicle body. At least one second vertical member 22 is provided on each side of the first vertical member 21. The second vertical member 22 is perpendicular to the first vertical member 21. In this case, the longitudinal folding member 2 is cross-shaped. It can be understood that in order for the longitudinal folding member 2 to pass through the support plate 43 when unfolded or folded, the clearance holes and repositioning holes on the support plate 43 are cross-shaped. In order to keep the longitudinal folding member 2 in a flat state, a rigid rod is provided at the top of the first vertical member 21. The rigid rod extends along the first vertical member 21. Similarly, a rigid rod is also provided at the top of the second vertical member 22. The rigid rods on the first vertical member 21 and the second vertical member 22 are connected to form a cross shape. The cross-shaped rigid rod can freely pass through the clearance holes and repositioning holes. To avoid interference between the position of the traction rope 52 and the horizontal folding member 1, all strands of the traction rope 52 are connected to the first vertical member 21. In addition, multiple second vertical members 22 can be provided on each side of the first vertical member 21, in which case the multiple second vertical members 22 are spaced apart along the first vertical member 21.

[0036] The bottom ends of the first vertical member 21 and the second vertical member 22 are fixed to the base plate 4. The traction rope 52 of the longitudinal traction mechanism is connected to the first vertical member 21. Both the first vertical member 21 and the second vertical member 22 are made of flexible material, allowing them to be folded and unfolded at will. When the motor 5 drives the transmission rod 51 to rotate, the transmission rod 51 winds up the traction rope 52. At this time, the traction rope 52 drives the first vertical member 21 and the second vertical member 22 to rise simultaneously for unfolding. When the transmission rod 51 releases the traction rope 52, the first vertical member 21 and the second vertical member 22 descend simultaneously to fold and store in the base plate 4.

[0037] Since the longitudinal folding member 2 is composed of the first vertical member 21 and the second vertical member 22, the first vertical member 21 and the second vertical member 22 can divide the space on the carrier plate 43 into more interval areas in the horizontal direction. When more wafer packaging boxes are placed on the carrier plate 43, the longitudinal folding member 2 can also separate multiple wafer packaging boxes, thereby avoiding problems such as collision between adjacent wafer packaging boxes.

[0038] like Figure 1 As shown, the wafer packaging box transport trolley also includes a light sensor 6. In this embodiment, a light sensor 6 is provided on each layer of the trolley body. Specifically, the light sensor 6 is located on the inner side of the trolley body, for example, on one of the long side panels 42, while the other long side panel 42 opposite to the light sensor 6 is set as a transparent plate so that light can shine into the trolley body. The light sensor 6 is used to sense the intensity of light. Each light sensor 6 is electrically connected to the controller 3. A preset light intensity can be set in the controller 3 so that the controller 3 controls the longitudinal traction mechanism and the horizontal traction mechanism according to the light intensity sensed by the light sensor 6. For example, when the light intensity is lower than the preset light intensity, the controller 3 controls the longitudinal traction mechanism and the horizontal traction mechanism to unfold the corresponding longitudinal folding piece 2 and the horizontal folding piece 1; when the light intensity is higher than the preset light intensity, the controller 3 controls the longitudinal traction mechanism and the horizontal traction mechanism to fold the corresponding longitudinal folding piece 2 and the horizontal folding piece 1.

[0039] When the wafer packaging box is not placed in the vehicle body, the light intensity sensed by the light sensor 6 is at its maximum. At this time, the horizontal folding component 1 and the vertical folding component 2 are in a folded state. When placing the wafer packaging box onto the support plate 43, it is first placed from the direction away from the light sensor 6 to the direction closer to the light sensor 6, until the wafer packaging box is full. The wafer packaging box has a light-blocking effect, and at this time, the light intensity sensed by the light sensor 6 is at its minimum and lower than the preset light intensity. The controller 3 first controls the vertical traction mechanism to pull the vertical folding component 2 to unfold, and then controls the horizontal traction mechanism to move so that the horizontal folding component 1 unfolds. When it is necessary to remove the wafer packaging box, the controller 3 can first control the vertical folding component 2 to descend below the horizontal folding component 1, and then remove the wafer packaging box on the horizontal folding component 1. Then the controller 3 controls the horizontal folding component 1 to fold to remove the wafer packaging box from the support plate 43.

[0040] In summary, when the longitudinal folding member 2 is cross-shaped, the implementation process of the wafer packaging box transport trolley in this embodiment is as follows: The longitudinal folding member 2 and the horizontal folding member 1 are initially in a folded state. For example, four wafer packaging boxes are first placed on the support plate 43. At this time, the light intensity measured by the first layer photosensitive sensor 6 is reduced to the minimum, that is, the light intensity is less than the set value. The controller 3 first controls the motor 5 to start, so that the motor 5 drives the transmission rod 51 to rotate, so as to wind up the traction rope 52, so that the traction rope 52 pulls the first vertical member 21 and the second vertical member 22 of the longitudinal folding member 2 to rise to a preset height at the same time. At this time, the first vertical member 21 and the second vertical member 22 divide the support plate 43 into four areas, and one wafer packaging box is placed in each area. Then the controller 3 controls the rodless cylinder to start, so that the rodless cylinder drives the movable end 111 of the horizontal folding member 1 to move, so that the horizontal folding member 1 unfolds. Next, four wafer packaging boxes are placed on the horizontal folding component 1. At this time, the light intensity measured by the second-layer photosensor 6 is reduced to a minimum, i.e., the light intensity is less than the set value. The controller 3 controls the motor 5 to start again, causing the motor 5 to drive the transmission rod 51 to rotate, thereby winding the traction rope 52. This causes the traction rope 52 to pull the first vertical component 21 and the second vertical component 22 of the longitudinal folding component 2 to rise simultaneously to the preset height. At this time, the space on the horizontal folding component 1 is divided into four areas, and one wafer packaging box is placed in each area. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A wafer packaging box transport trolley, characterized in that, include: The vehicle body has an interior space for accommodating wafer packaging boxes; At least one horizontal folding member is horizontally disposed in the vehicle body to divide the interior of the vehicle body into multiple layers. The horizontal folding member is used to carry a wafer packaging box. The horizontal folding member is provided with a clearance hole. The horizontal folding member includes a movable end and a fixed end. The fixed end is connected to the vehicle body. The movable end can slide horizontally to allow the horizontal folding member to be horizontally unfolded or folded. A longitudinal folding member, which is a flexible folding member, includes a lifting end and a limiting end. The limiting end is connected to the bottom of the vehicle body. The lifting end can be raised and lowered through the clearance hole through the horizontal folding member to divide each layer of space into multiple areas.

2. The wafer packaging box transport trolley according to claim 1, characterized in that: The vehicle body includes a base plate, a support plate, and four side plates. The base plate and the four side plates are arranged to form a cuboid. The support plate is horizontally positioned above the base plate and below the horizontal folding member. The edge of the support plate is fixed to the four side plates. The support plate is used to support wafer packaging boxes. The support plate is provided with clearance holes for the lifting end to pass through. The limiting end is connected to the base plate.

3. The wafer packaging box transport trolley according to claim 2, characterized in that: The vehicle body also includes a tray, which is horizontally connected to the outside of one of the side panels, and the side panel has a through hole. The fixed end is rotatably connected to the tray, the movable end passes through the through hole, and the horizontal folding member is slidably connected to the side panels located on both sides of the horizontal folding member. The tray is used to store the horizontal folding member when it is folded.

4. The wafer packaging box transport trolley according to claim 2, characterized in that: The wafer packaging box transport trolley also includes a horizontal traction mechanism and a vertical traction mechanism. The horizontal traction mechanism is located on the vehicle body, and the movable end is connected to the horizontal traction mechanism and unfolds or folds horizontally under the drive of the horizontal traction mechanism. The vertical traction mechanism is located on the top of the vehicle body, and the lifting end is connected to the vertical traction mechanism and rises under the drive of the vertical traction mechanism and passes through the horizontal folding member through the clearance hole to divide each layer of space into multiple areas.

5. The wafer packaging box transport trolley according to claim 4, characterized in that: The longitudinal traction mechanism includes a motor, a transmission rod, and a traction rope. The motor is connected to the vehicle body, the transmission rod is rotatably connected to the vehicle body and connected to the motor, and the traction rope is multi-stranded. All the traction rope strands are wound around the transmission rod and connected to the longitudinal folding member. When the motor drives the transmission rod to rotate, the transmission rod retracts and expands the traction rope, so that the longitudinal folding member can be raised and unfolded or lowered and folded.

6. The wafer packaging box transport trolley according to claim 1, characterized in that: The longitudinal folding member includes a first vertical member and a second vertical member. A second vertical member is respectively provided on both sides of the first vertical member, and the first vertical member and the second vertical member are arranged perpendicularly.

7. The wafer packaging box transport trolley according to claim 6, characterized in that: Multiple second vertical members are provided on each side of the first vertical member, and the multiple second vertical members are spaced apart along the first vertical member.

8. The wafer packaging box transport trolley according to claim 1, characterized in that: The top end of the longitudinal folding member is provided with a rigid rod, which extends along the longitudinal folding member.

9. The wafer packaging box transport trolley according to claim 4, characterized in that: The horizontal traction mechanism includes two rodless cylinders, which are respectively located at both ends of the movable end and are connected to the movable end.

10. The wafer packaging box transport trolley according to claim 4, characterized in that: One side of the vehicle body is a transparent panel. The wafer packaging box transport trolley also includes a light sensor and a controller. The light sensor is located inside the vehicle body and is used to sense light intensity. The light sensor, the horizontal traction mechanism, and the vertical traction mechanism are all electrically connected to the controller. After the carrier plate is full of wafer packaging boxes, when the light intensity detected by the light sensor is lower than the preset light intensity, the controller first controls the vertical traction mechanism to pull the vertical folding piece upward to separate adjacent wafer packaging boxes, and the lifting end is lower than the horizontal folding piece. Then the controller controls the horizontal traction mechanism to pull the horizontal folding piece horizontally unfold.

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