Container negative pressure restraining integrated tray

Abstract

A packaging negative pressure restraining integrated tray comprises a restraining tray assembly, and the restraining tray assembly clamps a battery through a plurality of parallel separation assemblies arranged between a front end plate and a rear end plate in a penetrating mode. The top of the restraining tray assembly is connected with a negative pressure fixing plate through an in-place confirmation device assembly and a height adjuster, a plurality of parallel negative pressure assemblies are arranged on the negative pressure fixing plate, and integrated negative pressure cups on the negative pressure assemblies downwards penetrate through the negative pressure fixing plate to be in butt joint with a liquid injection opening of a battery; the negative-pressure suction nozzle is assembled on the whole negative-pressure fixing plate which is in butt joint with the restraining tray assembly, and the height of the negative-pressure fixing plate is finely adjusted through an additional positioning device, so that the negative-pressure suction nozzle and a battery liquid injection port are accurately aligned on the basis of ensuring the air tightness.

Description

Technical Field

[0001] This invention belongs to the field of lithium battery formation testing technology, and specifically relates to an integrated negative pressure restraint tray. Background Technology

[0002] With the significant development of the lithium battery industry, the requirements for the production effect and efficiency of lithium batteries are becoming increasingly stringent. Currently, the lithium battery production process requires the use of negative pressure suction nozzles to remove gases from inside the battery to prevent air bubbles in the electrolyte from affecting battery function. In conventional battery formation equipment, the negative pressure suction nozzle and the tray holding the batteries are independent mechanisms. Often, due to insufficient airtightness, the battery filling port is exposed, leading to electrolyte contamination. Therefore, the production process is usually carried out in a high-temperature workshop of 45 degrees Celsius to prevent impurities from entering the electrolyte. To control the air humidity in the workshop, a large number of dehumidifiers are needed, resulting in high energy consumption.

[0003] Utility model CN220710379U discloses an integrated negative pressure restraint tray. By directly mounting the negative pressure mechanism onto the battery tray, the negative pressure nozzle directly connects to the lithium battery's liquid inlet, eliminating the common connection of the liquid inlet tubing between the nozzle and the battery, thus enhancing the airtightness of the negative pressure gas extraction process. However, the battery tray used in this design is relatively large, making it prone to inaccurate alignment with the negative pressure mechanism and difficult to adjust. Furthermore, dimensional errors due to manufacturing processes also exist between the negative pressure components, causing the nozzle to fail to accurately align with the battery's liquid inlet, affecting the efficiency of exhaust gas extraction. Additionally, the vertical stroke of the negative pressure nozzle cannot be accurately adjusted, easily leading to insufficient or excessive alignment between the nozzle and the battery's liquid inlet. Insufficient alignment can cause poor sealing and leakage, while excessive alignment can damage the nozzle. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes an integrated negative pressure restraint tray. The design concept involves mounting the negative pressure nozzle onto a single negative pressure fixing plate that connects to the restraint tray assembly. An additional positioning device is used to fine-tune the height of the negative pressure fixing plate, thereby ensuring accurate alignment between the negative pressure nozzle and the battery filling port while maintaining airtightness.

[0005] An integrated negative pressure restraint tray includes a restraint tray assembly 5, which includes a horizontal rectangular base plate 57. The base plate 57 has a vertical front end plate 51 and a vertical rear end plate 52 at its two longitudinal ends. The side of the front end plate 51 and the rear end plate 52 closest to each other is defined as the inner side, and the other side as the outer side. A support shaft 56 connects the transverse ends of the front end plate 51 and the rear end plate 52. A spacing adjustment plate 58, parallel to the front end plate, passes through the support shaft 56 near the front end plate. Several mounting brackets are slidably passed through the support shaft 56 between the spacing adjustment plate 58 and the rear end plate 52 along its longitudinal direction. Mounting components 54; mounting components 54 are arranged in pairs and flush with each other on the support shafts 56 on both sides, and the pairs of mounting components 54 are connected by transverse partition components 55; the longitudinally adjacent mounting components 54 are fitted together with a gap, so that the spacing between adjacent mounting components 54 is variable; the longitudinally adjacent partition components 55 form a battery slot for placing the battery; the partition component 55 closest to the spacing adjustment plate 58 is defined as the first partition component, and the partition component 55 closest to the rear end plate 52 is defined as the last partition component; the first partition component is connected to the spacing adjustment plate 58, and the last partition component is connected to the rear end plate 52;

[0006] The top of the restraint tray assembly 5 is covered with a rectangular negative pressure fixing plate 4. The front end of the negative pressure fixing plate 4 is connected to the front plate 51 through the positioning confirmer assembly 2 and the height adjuster assembly 3 that can be extended up and down. The rear end of the negative pressure fixing plate 4 is connected to the rear plate 52 through the positioning confirmer assembly 2 and the height adjuster assembly 3. The top of the negative pressure fixing plate 4 is provided with several negative pressure components 1 that are flush with the left and right sides and extend forward and backward. The negative pressure components 1 are loaded with integrated negative pressure cups 11. The integrated negative pressure cups 11 are arranged in front and back and pass downward through the longitudinal long groove 44 on the negative pressure fixing plate 4 and connect to the liquid injection port of the battery.

[0007] More specifically, the integrated negative pressure cup 11 in the negative pressure assembly 1 has a negative pressure fixing assembly 12 on one side of the horizontal direction. The negative pressure fixing assembly 12 is connected to the negative pressure fixing plate 4 through the fixing hole 45. The front end of the integrated negative pressure cup 11 is connected to the air control valve assembly 13, which is connected to the external negative pressure mechanism.

[0008] More specifically, the positioning confirmer assembly 2 includes a fixed shaft seat 21 fixed on the front end plate 51 and the rear end plate 52, and a fixing assembly 24 connecting the front and rear ends of the negative pressure fixing plate 4. A transverse retaining shaft 22 is inserted through the fixed shaft seat 21. The fixing assembly 24 is connected to the positioning hook 23 through the transverse fixed shaft 241. The positioning hook 23 can rotate axially along the fixed shaft 241. The lower end of the positioning hook is provided with a circular groove. After the positioning hook 23 rotates downward, the circular groove on it can fit into the retaining shaft 22. The size of the circular groove is slightly larger than the retaining shaft 22, allowing the retaining shaft 22 to move up and down slightly.

[0009] More specifically, the height adjuster assembly 3 includes a fixed guide sleeve 35 disposed on the front end plate 51 and the rear end plate 52, and a height adjusting shaft 31 connected to the negative pressure fixing plate 4; the lower end of the fixed guide sleeve 35 is connected to a bottom-closed guide shaft 36; the height adjusting shaft 31 is provided with a compression spring 32, a dust collection groove 33, a floating limit sleeve 34, the fixed guide sleeve 35, and the guide shaft 36 in sequence from top to bottom; the bottom of the height adjusting shaft 31 is threadedly connected to the fixed guide sleeve 35, and the height can be adjusted by rotation; the dust collection groove 33 prevents external dust from entering the interior of the fixed guide sleeve 35; the floating limit sleeve 34 prevents the height adjusting shaft 31 from rotating too far and disengaging from the fixed guide sleeve 35.

[0010] More specifically, the front end plate 51 is provided with a spacing adjustment component 53; the spacing adjustment component 53 contacts the spacing adjustment plate 58 through a rotatable longitudinal screw structure, and the spacing adjustment plate 58 can be rotated and longitudinally translated to adjust the spacing between the separator components 55.

[0011] More specifically, the negative pressure fixing plate 4 includes a rectangular negative pressure main plate 41, which has several parallel longitudinal grooves 44. The negative pressure main plate 41 between the grooves 44 has reinforcing ribs 42, and the negative pressure main plate 41 has positioning sleeves 43 connected to the position confirmer assembly 2 at both the front and rear ends.

[0012] More specifically, the separator 55 is a plate-like structure that is thick at both ends and thin in the middle.

[0013] Preferably, the front and rear ends of the negative pressure fixing plate 4 are equipped with two position confirmer assemblies 2 and two height adjuster assemblies 3 that can be extended up and down.

[0014] The working steps of this invention include:

[0015] 1. The initial negative pressure fixing plate 4 is separated from the restraint tray assembly 5. The external operator inserts the battery into the battery clamping position formed between the separating components 55 and rotates the spacing adjustment component 53 to shorten the distance between the spacing adjustment plate 58 and the rear end plate 52, so that the separating components 55 clamp the battery. The external robot lowers the negative pressure fixing plate 4 so that the negative pressure fixing plate 4 aligns with the top of the restraint tray assembly 5. The fixing shaft 241 on the negative pressure fixing plate 4 flips down to engage with the locking shaft 22, so that the negative pressure fixing plate 4 and the restraint tray assembly 5 are initially connected.

[0016] 2. External personnel axially rotate the height adjustment shaft 31 to adjust its depth in the fixed guide sleeve 35, adjust the connection tightness between the negative pressure fixing plate 4 and the restraint tray assembly 5, and drive the integrated negative pressure cup 11 on the negative pressure assembly 1 to be tightly connected to the battery's liquid inlet.

[0017] 3. External personnel open the pneumatic control valve assembly 13, the integrated negative pressure cup 11 connects to the external negative pressure system, and completes the extraction of gas from the battery;

[0018] 4. After the venting is completed, the external robotic arm removes the negative pressure fixing plate 4 from the top of the restraint tray assembly 5, and the external mechanism pushes the battery out of the restraint tray assembly 5 from below and removes the battery.

[0019] The technical advantages of this invention are as follows: Based on the existing technology, multiple negative pressure components 1 are assembled into a negative pressure fixing plate, and a positioning confirmation component 2 and a height adjustment component 3 are added, thereby ensuring airtightness and accurate alignment between the negative pressure nozzle and the battery filling port, and efficiently completing the battery venting process; the up and down stroke of the negative pressure nozzle can be accurately adjusted to avoid insufficient or excessive alignment between the negative pressure nozzle and the battery filling port. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the integrated negative pressure restraint tray of the present invention.

[0021] Figure 2 This is a structural diagram of the negative pressure component of the present invention.

[0022] Figure 3 This is a structural diagram of the positioning confirmer assembly of the present invention.

[0023] Figure 4 This is a structural diagram of the height adjuster assembly of the present invention.

[0024] Figure 5 This is a structural diagram of the negative pressure fixing plate of the present invention.

[0025] Figure 6 This is a structural diagram of the restraint tray assembly of the present invention.

[0026] Figure 7 This is a top view of the mounting components of the present invention.

[0027] Figure 8 This is the front view of the separator component of the present invention. Detailed Implementation

[0028] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0035] An integrated negative pressure restraint tray includes a restraint tray assembly 5, which includes a horizontal rectangular base plate 57. The base plate 57 has a vertical front end plate 51 and a vertical rear end plate 52 at its two longitudinal ends. The side of the front end plate 51 and the rear end plate 52 closest to each other is defined as the inner side, and the other side as the outer side. A support shaft 56 connects the transverse ends of the front end plate 51 and the rear end plate 52. A spacing adjustment plate 58, parallel to the front end plate, passes through the support shaft 56 near the front end plate. Several mounting brackets are slidably passed through the support shaft 56 between the spacing adjustment plate 58 and the rear end plate 52 along its longitudinal direction. Mounting components 54; mounting components 54 are arranged in pairs and flush with each other on the support shafts 56 on both sides, and the pairs of mounting components 54 are connected by transverse partition components 55; the longitudinally adjacent mounting components 54 are fitted together with a gap, so that the spacing between adjacent mounting components 54 is variable; the longitudinally adjacent partition components 55 form a battery slot for placing the battery; the partition component 55 closest to the spacing adjustment plate 58 is defined as the first partition component, and the partition component 55 closest to the rear end plate 52 is defined as the last partition component; the first partition component is connected to the spacing adjustment plate 58, and the last partition component is connected to the rear end plate 52;

[0036] The top of the restraint tray assembly 5 is covered with a rectangular negative pressure fixing plate 4. The front end of the negative pressure fixing plate 4 is connected to the front plate 51 through two positioning confirmer assemblies 2 and two vertically retractable height adjuster assemblies 3. The rear end of the negative pressure fixing plate 4 is connected to the rear plate 52 through two positioning confirmer assemblies 2 and two vertically retractable height adjuster assemblies 3. The top of the negative pressure fixing plate 4 is provided with several negative pressure components 1 that are flush with the left and right sides and extend forward and backward. The negative pressure components 1 are equipped with integrated negative pressure cups 11. The integrated negative pressure cups 11 are arranged in front and back and pass downward through the longitudinal long groove 44 on the negative pressure fixing plate 4 and connect to the liquid injection port of the battery.

[0037] In some embodiments, the integrated negative pressure cup 11 in the negative pressure assembly 1 is provided with a negative pressure fixing assembly 12 on one side of the horizontal direction. The negative pressure fixing assembly 12 is connected to the negative pressure fixing plate 4 through the fixing hole 45. The front end of the integrated negative pressure cup 11 is connected to a pneumatic control valve assembly 13, which is connected to an external negative pressure mechanism.

[0038] In some embodiments, the positioning confirmer assembly 2 includes a fixed shaft seat 21 fixed on the front end plate 51 and the rear end plate 52, and a fixing assembly 24 connecting the front and rear ends of the negative pressure fixing plate 4. A transverse retaining shaft 22 is inserted through the fixed shaft seat 21. The fixing assembly 24 is connected to the positioning hook 23 through the transverse fixing shaft 241. The positioning hook 23 can rotate axially along the fixing shaft 241. A circular groove is provided at the lower end of the positioning hook. After the positioning hook 23 rotates downward, the circular groove on it can fit into the retaining shaft 22. The size of the circular groove is slightly larger than the retaining shaft 22, allowing the retaining shaft 22 to move up and down slightly.

[0039] In some embodiments, the height adjuster assembly 3 includes a fixed guide sleeve 35 disposed on the front end plate 51 and the rear end plate 52, and a height adjusting shaft 31 connected to the negative pressure fixing plate 4; the lower end of the fixed guide sleeve 35 is connected to a bottom-closed guide shaft 36; the height adjusting shaft 31 is provided with a compression spring 32, a dust collection groove 33, a floating limit sleeve 34, the fixed guide sleeve 35, and the guide shaft 36 in sequence from top to bottom; the bottom of the height adjusting shaft 31 is threadedly connected to the fixed guide sleeve 35, and the height can be adjusted by rotation; the dust collection groove 33 prevents external dust from entering the interior of the fixed guide sleeve 35; the floating limit sleeve 34 prevents the height adjusting shaft 31 from rotating too far and disengaging from the fixed guide sleeve 35.

[0040] In some embodiments, the front end plate 51 is provided with a spacing adjustment component 53; the spacing adjustment component 53 contacts the spacing adjustment plate 58 through a rotatable longitudinal lead screw structure, and the spacing between the separating components 55 can be adjusted by rotating and longitudinally translating the spacing adjustment plate 58.

[0041] In some embodiments, the negative pressure fixing plate 4 includes a rectangular negative pressure main plate 41, which has several parallel longitudinal grooves 44. The negative pressure main plate 41 between the grooves 44 is provided with reinforcing ribs 42, and the front and rear ends of the negative pressure main plate 41 are provided with positioning sleeves 43 connected to the position confirmer assembly 2.

[0042] In some embodiments, the separator 55 is a plate-like structure that is thick at both ends and thin in the middle.

[0043] The working steps of this invention include:

[0044] 1. The initial negative pressure fixing plate 4 is separated from the restraint tray assembly 5. The external operator inserts the battery into the battery clamping position formed between the separating components 55 and rotates the spacing adjustment component 53 to shorten the distance between the spacing adjustment plate 58 and the rear end plate 52, so that the separating components 55 clamp the battery. The external robot lowers the negative pressure fixing plate 4 so that the negative pressure fixing plate 4 aligns with the top of the restraint tray assembly 5. The fixing shaft 241 on the negative pressure fixing plate 4 flips down to engage with the locking shaft 22, so that the negative pressure fixing plate 4 and the restraint tray assembly 5 are initially connected.

[0045] 2. External personnel axially rotate the height adjustment shaft 31 to adjust its depth in the fixed guide sleeve 35, adjust the connection tightness between the negative pressure fixing plate 4 and the restraint tray assembly 5, and drive the integrated negative pressure cup 11 on the negative pressure assembly 1 to be tightly connected to the battery's liquid inlet.

[0046] 3. External personnel open the pneumatic control valve assembly 13, the integrated negative pressure cup 11 connects to the external negative pressure system, and completes the extraction of gas from the battery;

[0047] 4. After the venting is completed, the external robotic arm removes the negative pressure fixing plate 4 from the top of the restraint tray assembly 5, and the external mechanism pushes the battery out of the restraint tray assembly 5 from below and removes the battery.

[0048] The technical advantages of this invention are as follows: Based on the existing technology, multiple negative pressure components 1 are assembled into a negative pressure fixing plate, and a positioning confirmation component 2 and a height adjustment component 3 are added, thereby ensuring airtightness and accurate alignment between the negative pressure nozzle and the battery filling port, and efficiently completing the battery venting process; the up and down stroke of the negative pressure nozzle can be accurately adjusted to avoid insufficient or excessive alignment between the negative pressure nozzle and the battery filling port.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A negative pressure restraint integrated pallet, comprising a restraint pallet assembly (5), the restraint pallet assembly (5) comprising a horizontal rectangular bottom plate (57); the bottom plate (57) is provided with a vertical front end plate (51) and a vertical rear end plate (52) at the longitudinal ends thereof respectively; the side of the front end plate (51) and the rear end plate (52) close to each other is defined as the inner side, and the other side is defined as the outer side; a support shaft (56) is connected between the transverse ends of the front end plate (51) and the rear end plate (52); a spacing adjustment plate (58) parallel to the front end plate is provided on the support shaft (56) close to the front end plate; a plurality of mounting assemblies (54) are slidably provided on the support shaft (56) between the spacing adjustment plate (58) and the rear end plate (52) in the longitudinal direction; the mounting assemblies (54) on the support shaft (56) on the transverse two sides are arranged in pairs and are flush with each other, and a transverse partition assembly (55) is connected between the mounting assemblies (54) arranged in pairs; the mounting assemblies (54) are gap-fitted between the longitudinally adjacent mounting assemblies (54), so that the spacing of the adjacent mounting assemblies (54) is variable; the longitudinally adjacent partition assemblies (55) enclose a battery slot for placing a battery; the partition assembly (55) closest to the spacing adjustment plate (58) is defined as the first partition assembly, and the partition assembly (55) closest to the rear end plate (52) is defined as the last partition assembly; the first partition assembly is connected to the spacing adjustment plate (58), and the last partition assembly is connected to the rear end plate (52); characterized in that: A rectangular negative pressure fixing plate (4) is provided on the top of the restraint pallet assembly (5), the front end of the negative pressure fixing plate (4) is connected to the front end plate (51) through a position confirmation assembly (2) and a height adjuster assembly (3) that can be extended up and down, and the rear end of the negative pressure fixing plate (4) is connected to the rear end plate (52) through the position confirmation assembly (2) and the height adjuster assembly (3) that can be extended up and down; a plurality of negative pressure assemblies (1) that are flush left and right and extend front and back are provided on the top of the negative pressure fixing plate (4), an integrated negative pressure cup (11) is loaded on the negative pressure assembly (1), and the integrated negative pressure cups (11) are arranged front and back and downwardly pass through longitudinal long grooves (44) on the negative pressure fixing plate (4) and are connected to the liquid injection ports of the batteries.

2. The pallet according to claim 1, characterized in that: The integrated negative pressure cup (11) in the negative pressure assembly (1) is provided with a negative pressure fixing assembly (12) on the transverse side thereof, and the negative pressure fixing assembly (12) is connected to the negative pressure fixing plate (4) through a fixing hole (45); a pneumatic control valve assembly (13) is connected to the front end of the integrated negative pressure cup (11), and the pneumatic control valve assembly (13) is connected to an external negative pressure mechanism.

3. The pallet according to claim 1, wherein: The in-place confirmator assembly (2) comprises a fixed shaft seat (21) fixed on the front end plate (51) and the rear end plate (52) and a fixed assembly (24) connected to the front and rear ends of the negative pressure fixed plate (4), the fixed shaft seat (21) is provided with a transverse clamping shaft (22); the fixed assembly (24) is connected to the in-place hook (23) through a transverse fixed shaft (241), the in-place hook (23) can rotate axially along the fixed shaft (241), and the lower end of the in-place hook is provided with a circular groove; the circular groove provided on the in-place hook (23) can be embedded with the clamping shaft (22) after the in-place hook is rotated downward; the size of the circular groove is slightly larger than that of the clamping shaft (22), so that the clamping shaft (22) can move up and down slightly.

4. The pallet according to claim 1, wherein: The height adjuster assembly (3) comprises a fixed guide sleeve (35) provided on the front end plate (51) and the rear end plate (52) and a height adjustment shaft (31) connected to the negative pressure fixed plate (4); the lower end of the fixed guide sleeve (35) is connected to a bottom-closed guide shaft (36); the height adjustment shaft (31) is sequentially provided with a compression spring (32), a dust collection groove (33) and a floating limiting sleeve (34), the fixed guide sleeve (35) and the guide shaft (36) from top to bottom; the bottom of the height adjustment shaft (31) is threadedly connected with the fixed guide sleeve (35), and the height can be adjusted by rotating; the dust collection groove (33) prevents external dust from entering the inside of the fixed guide sleeve (35); the floating limiting sleeve (34) prevents the height adjustment shaft (31) from rotating too far and being separated from the fixed guide sleeve (35).

5. The pallet according to claim 1, wherein: The front end plate (51) is provided with a spacing adjustment assembly (53); the spacing adjustment assembly (53) is connected to the spacing adjustment plate (58) through a rotatable longitudinal screw structure, the position of the spacing adjustment plate (58) can be moved by rotating, and then the spacing between the partition assemblies (55) can be adjusted.

6. The pallet of claim 1, wherein: The negative pressure fixed plate (4) comprises a rectangular negative pressure main plate (41), a plurality of parallel longitudinal long grooves (44) are arranged on the negative pressure main plate (41), reinforcing ribs (42) are arranged on the negative pressure main plate (41) between the long grooves (44), and positioning sleeves (43) connected to the in-place confirmator assembly (2) are arranged at the front and rear ends of the negative pressure main plate (41).

7. The pallet according to claim 1, wherein: The partition assembly (55) is a plate-shaped structure with thick transverse ends and a thin middle part.

8. The pallet of claim 1, wherein: The front end and the rear end of the negative pressure fixed plate (4) are provided with two in-place confirmator assemblies (2) and two height adjuster assemblies (3) that can be extended upward and downward. The front end and the rear end of the negative pressure fixed plate (4) are provided with two in-place confirmator assemblies (2) and two height adjuster assemblies (3) that can be extended upward and downward.

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