A height-adjustable plastic tray

Abstract

This utility model relates to the field of plastic pallet technology, and in particular to a height-adjustable plastic pallet, comprising a base plate, a top plate, four A-mounting shells and four B-mounting shells. The A-mounting shells and B-mounting shells are connected to the upper side of the base plate, and the top plate is located above the A-mounting shells and B-mounting shells. It also includes: four A-connecting plates located above the A-mounting shells, with four A-mounting grooves on the lower side of the top plate, and the A-connecting plates installed inside the A-mounting grooves; four lifting blocks, each with an A-positioning block on one side, fixedly connected to the inner side of the B-mounting shell, and the lifting blocks connected to the lower side of the top plate and slidable inside the B-mounting shells; a lifting mechanism; and four positioning units. By setting up the B-mounting shells, lifting blocks, A-positioning blocks, and positioning units, the height can be directly adjusted, and the pallet can be better supported and positioned, making the device safer to use and improving the service life of the pallet.

Description

Technical Field

[0001] This utility model relates to the field of plastic pallet technology, and in particular to a height-adjustable plastic pallet. Background Technology

[0002] A plastic pallet is a logistics unit used in conjunction with forklifts, racks, and other logistics equipment. It is used to store, load, and move goods, and is an indispensable piece of logistics equipment in modern warehousing.

[0003] The emergence of plastic pallets is an adaptation to environmental protection needs. Using plastic pallets instead of wooden pallets is the best product to reduce damage to forests. It is also an inevitable product of the development of the logistics industry. With the continuous strengthening of food safety awareness and the high requirements for hygiene in the pharmaceutical industry, plastic pallets have advantages such as corrosion resistance, moisture resistance, rust resistance, insect resistance, mold resistance, high load-bearing capacity, and long service life.

[0004] According to Chinese patent application number CN202421079659.6, a height-adjustable forklift plastic pallet is disclosed. It includes a pallet base, a pallet, and a connecting portion between them. The pallet base and pallet are vertically aligned. The connecting portion includes a lower toothed connecting plate and an upper toothed connecting plate. The lower toothed connecting plate is located on the left and right sides of the top surface of the pallet base. Multiple rows of straight toothed grooves are evenly distributed from top to bottom on the outer side of the lower toothed connecting plate and the inner side of the upper toothed connecting plate. The height of the pallet can be adjusted by inserting different toothed grooves into the lower and upper toothed connecting plates. The connecting portion also includes a lower positioning plate and an upper positioning plate, with a positioning mechanism between them. This plastic pallet is height-adjustable, allowing the use of different models of forklift forks. Furthermore, when stacking, the height between the pallet and the base can be lowered, reducing the gap between the pallet and the base and maximizing space utilization.

[0005] In the prior art, according to Chinese patent application number CN202421079659.6, a height-adjustable forklift plastic pallet is disclosed. This method requires first offsetting the upper and lower layers of the pallet, then manually adjusting the distance between the two layers, then putting the two layers together, and finally positioning them. After repeated use, this can easily lead to loosening, increasing the probability of misalignment and affecting the safety of pallet use. Therefore, we propose a height-adjustable plastic pallet to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies. For example, Chinese patent application number CN202421079659.6 discloses a height-adjustable forklift plastic pallet. This method requires manually adjusting the distance between the upper and lower layers of the pallet before assembling them and finally positioning them. After repeated use, this can easily lead to loosening, increasing the probability of misalignment and affecting the safety of pallet use. Therefore, this utility model proposes a height-adjustable plastic pallet.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Design a height-adjustable plastic pallet, including a base plate, a top plate, four A-mounting shells and four B-mounting shells, wherein the A-mounting shells and B-mounting shells are connected to the upper part of the base plate, and the top plate is located above the A-mounting shells and B-mounting shells, and further includes:

[0009] Four A-connecting plates are provided on the upper side of the A-mounting shell. The lower side of the upper plate is provided with four A-mounting slots, and the A-connecting plates are installed inside the A-mounting slots.

[0010] Four lifting blocks, one side of each lifting block is provided with a positioning block A, the positioning block A is fixedly connected to the inner side of the mounting shell B, the lifting block is connected to the lower side of the upper plate and the lifting block can slide inside the mounting shell B;

[0011] A buffer ring is connected to the outer side of the base plate;

[0012] The lifting unit is located between the four A mounting shells and the four A connecting plates, and the lifting unit can automatically move up and down with the upper plate.

[0013] Four positioning units are located between the lifting block and positioning block A. The positioning units can support and position the upper plate through the lifting block.

[0014] Preferably, the lifting unit includes four electro-hydraulic lifting rods and four batteries. A protective shell slides inside the A mounting housing, and the protective shell is connected to the lower side of the A connecting plate. The electro-hydraulic lifting rods are mounted on the upper side of the base plate, and the shaft ends of the electro-hydraulic lifting rods are connected to the lower side of the A connecting plate. The batteries are connected to the outer side of the A mounting housing, and the electro-hydraulic lifting rods are connected to the batteries and the controller via wires.

[0015] By adopting the above structure, the lifting unit can automatically move the upper plate up and down, adjust the height of the upper plate, and allow the pallet to automatically adjust to different needs, thereby improving the pallet's applicability and convenience.

[0016] Preferably, the inner side of the A mounting shell is provided with a plurality of A guide grooves, and an A guide strip slides inside the A guide grooves. The A guide strip is connected to the outer side of the protective shell. A support block is connected to the upper side of the base plate. An A sliding hole is provided on the upper side of the support block. A support column slides inside the A sliding hole. The support column is connected to the lower side of the upper plate.

[0017] By adopting the above structure, the A guide bar, support block and support column play a guiding and limiting role in the up and down movement of the upper plate, making the movement of the upper plate more stable.

[0018] Preferably, the positioning unit includes a movable block and two springs. A B sliding hole is provided on one side of the B mounting housing, and the movable block can slide inside the B sliding hole. The A positioning block has several A positioning grooves on the side facing the movable block. The lifting block has several B positioning grooves and an auxiliary groove on the side facing the movable block. The B positioning grooves and the auxiliary grooves are interconnected. Several A positioning strips are fixed on both sides of the movable block. Several C positioning grooves are provided inside the B sliding hole, and the A positioning strips can slide inside the A positioning grooves, B positioning grooves, C positioning grooves, and auxiliary grooves. A T-shaped auxiliary block is connected to one side of the movable block, and a connecting hole is provided on one side of the movable block. The T-shaped auxiliary block has an A connecting block on its lower side. The A connecting block is connected to the B connecting blocks on both sides by O-rings. The B connecting blocks are connected to the B mounting shell. The moving block is connected to the B connecting block by O-rings and connecting holes. The upper side of the base plate has four sliding grooves. The upper side of the moving block has a guide shell. The upper and lower sides of the moving block are connected to driving blocks. The driving blocks can slide inside the guide shell and the sliding grooves. One side of the driving block has an A limiting block. The A limiting block can be installed inside the guide shell and the sliding groove. The spring is located between the driving block and the A limiting block and is connected to the driving block and the A limiting block.

[0019] By adopting the above structure, the positioning unit can limit and position the lifting block and the A positioning block, thereby allowing the lifting block to limit and support the upper plate, making the upper plate more stable after adjustment, reducing pressure on the lifting part, and improving the service life of the pallet.

[0020] Preferably, the lifting block has B guide grooves on both sides and a limiting groove on the side of the lifting block away from the A positioning block. A B guide strip slides inside the B guide groove, and a B limiting block slides inside the limiting groove. The B guide strip and the B limiting block are connected to the inner side of the B mounting shell.

[0021] By adopting the above structure, the B guide bar and the B limit block can guide and limit the up and down movement of the lifting block, making the movement of the lifting block more stable.

[0022] Preferably, the B mounting shell has three positioning holes on one side, and the moving block is connected to three B positioning blocks on the side away from the T-shaped auxiliary block. The B positioning blocks can slide inside the positioning holes.

[0023] By adopting the above structure, the B positioning block can play a role in positioning and guiding the moving block, thereby improving the stability of the moving block.

[0024] The height-adjustable plastic tray proposed in this utility model has the following advantages:

[0025] 1. By setting up the B mounting shell, lifting block, A positioning block, and positioning unit, the height can be directly adjusted, and the pallet can be better supported and positioned, making the device safer to use and improving the service life of the pallet.

[0026] 2. By setting up the A mounting shell, A connecting plate, and lifting part, the pallet can be automatically adjusted up and down, reducing the labor intensity of adjustment and improving the convenience of pallet use. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the front side of a height-adjustable plastic tray proposed in this utility model;

[0028] Figure 2 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of area A in the middle;

[0029] Figure 3 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of area B in the middle section;

[0030] Figure 4 This is a three-dimensional cross-sectional view of the upper side of a height-adjustable plastic tray proposed in this utility model.

[0031] Figure 5 The present utility model proposes Figure 4 A magnified three-dimensional structural diagram of a portion of the central C area;

[0032] Figure 6 The present utility model proposes Figure 4 A magnified three-dimensional structural diagram of a portion of the central D region;

[0033] Figure 7 This is a front-section three-dimensional structural diagram of a height-adjustable plastic tray proposed in this utility model;

[0034] Figure 8 The present utility model proposes Figure 7 A magnified three-dimensional structural diagram of a portion of the central E region;

[0035] Figure 9 The present utility model proposes Figure 7 A magnified three-dimensional structural diagram of a portion of the central F region;

[0036] Figure 10 The present utility model proposes Figure 7 A magnified three-dimensional structural diagram of a portion of the G region.

[0037] In the diagram: 1. Base plate; 2. Top plate; 3. Mounting shell A; 4. Mounting shell B; 5. Connecting plate A; 6. Lifting block; 7. Positioning block A; 8. Lifting part; 81. Electro-hydraulic lifting rod; 82. Battery; 83. Protective shell; 84. Guide bar A; 85. Support block; 86. Support column; 9. Positioning unit; 91. Moving block; 92. Spring; 93. Positioning bar A; 94. T-shaped auxiliary block; 95. Connecting block A; 96. Connecting block B; 97. Guide shell; 98. Driving block; 99. Limiting block A; 910. Guide bar B; 911. Limiting block B; 912. Positioning block B; 10. Buffer ring. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] Reference Figure 1-10 A height-adjustable plastic pallet includes a base plate 1, an upper plate 2, four A mounting shells 3 and four B mounting shells 4. The A mounting shells 3 and B mounting shells 4 are connected to the upper side of the base plate 1. The upper plate 2 is located above the A mounting shells 3 and B mounting shells 4. A buffer ring 10 is connected to the outer side of the base plate 1. The buffer ring 10 can play a role in buffering and protecting, reducing the impact on the base plate 1 and the upper plate 2, and improving the safety and service life of the pallet. It also includes: four A connecting plates 5, four lifting blocks 6, buffer ring 10, lifting part 8, and four positioning units 9.

[0040] A connecting plate 5 is located on the upper side of A mounting shell 3. The lower side of the upper plate 2 is provided with four A mounting slots, and A connecting plate 5 is installed inside the A mounting slots.

[0041] The lifting unit 8 is located between the four A-mounting shells 3 and the four A-connecting plates 5. The lifting unit 8 can automatically move up and down with the upper plate 2. The lifting unit 8 includes four electric hydraulic lifting rods 81 and four batteries 82. A support block 85 is connected to the upper side of the base plate 1. The upper side of the support block 85 is provided with an A sliding hole. A support column 86 slides inside the A sliding hole and is connected to the lower side of the upper plate 2. A protective shell 83 slides inside the A-mounting shell 3 and is connected to the lower side of the A-connecting plate 5. Several A guide grooves are provided inside the A-mounting shell 3. A guide strip 84 slides inside the A guide groove and is connected to the outer side of the protective shell 83. The electric hydraulic lifting rods 81 are mounted on the upper side of the base plate 1 and the shaft end of the electric hydraulic lifting rod 81 is connected to the A-connecting plate 5. The lower side is connected, and the battery 82 is connected to the outside of the A mounting shell 3. The electric hydraulic lifting rod 81 is connected to the battery 82 and the controller through wires. The electric hydraulic lifting rod 81 can move the A connecting plate 5 up and down, so that the A connecting plate 5 can move the upper plate 2 up and down automatically, adjusting the height of the upper plate 2, so that the pallet can automatically adjust to adapt to different needs, improving the pallet's applicability and convenience. When the A connecting plate 5 moves up and down, it can also move the protective shell 83 up and down together. At this time, the protective shell 83 will slide inside the A mounting shell 3, which will protect the electric hydraulic lifting rod 81. At the same time, it can work with the A guide strip 84 to guide and limit the movement of the A connecting plate 5, making the movement of the upper plate 2 more stable.

[0042] A positioning block 7 is provided on one side of the lifting block 6. The positioning block 7 is fixedly connected to the inside of the mounting shell 4. The lifting block 6 is connected to the lower side of the upper plate 2 and can slide inside the mounting shell 4. The lifting block 6 is provided with B guide grooves on both sides and a limiting groove on the side of the lifting block 6 away from the positioning block 7. A B guide strip 910 slides inside the B guide groove and a B limiting block 911 slides inside the limiting groove. The B guide strip 910 and the B limiting block 911 are connected to the inside of the mounting shell 4. The B guide strip 910 and the B limiting block 911 guide and limit the up and down movement of the lifting block 6, making the movement of the lifting block 6 more stable.

[0043] Positioning unit 9 is located between lifting block 6 and A positioning block 7. Positioning unit 9 can support and position the upper plate 2 through lifting block 6. Positioning unit 9 includes moving block 91 and two springs 92. B mounting shell 4 has a B sliding hole on one side, and moving block 91 can slide inside the B sliding hole. A positioning block 7 has several A positioning grooves on the side facing moving block 91. Lifting block 6 has several B positioning grooves and auxiliary grooves on the side facing moving block 91. The B positioning grooves and auxiliary grooves are connected. Several A positioning strips 93 are fixed on both sides of moving block 91. Several C positioning grooves are provided inside the B sliding hole, and A positioning strips 93 can slide inside the B sliding hole. Inside the A, B, and C positioning slots and the auxiliary slot, a T-shaped auxiliary block 94 is connected to one side of the moving block 91. Three positioning holes are provided on one side of the B mounting shell 4. Three B positioning blocks 912 are connected to the side of the moving block 91 away from the T-shaped auxiliary block 94. The B positioning blocks 912 provide positioning and guidance for the moving block 91, improving its stability. The B positioning blocks 912 can slide inside the positioning holes. A connecting hole is provided on one side of the moving block 91. An A connecting block 95 is located below the T-shaped auxiliary block 94. B connecting blocks 96 are connected to both sides of the A connecting block 95 via O-rings. The B connecting blocks 96 are connected to the B mounting shell 4. The moving block 91 and the connecting block 96 (B) are connected via O-pins and connecting holes. When the upper plate 2 is adjusted, the moving block 91 is moved by the T-shaped auxiliary block 94, allowing the moving block 91 to slide with the A positioning strip 93 in the A positioning groove and the B positioning groove. This allows the corresponding A positioning strip 93 to move to the inside of the auxiliary groove. Then, when the lifting block 6 moves, the A positioning strip 93 on the lifting block 6 will slide in the auxiliary groove, preventing interference with the up-and-down movement of the lifting block 6. After the upper plate 2 is adjusted, the moving block 91, carrying the A positioning strip 93, enters the A positioning groove and the B positioning groove, allowing the moving block 91 to slide with the A positioning strip 93 in the A positioning groove and the B positioning groove. The moving block 91 limits and positions the lifting block 6 and the A positioning block 7 through the A positioning strip 93, thereby allowing the lifting block 6 to limit and support the upper plate 2, making the upper plate 2 more stable after adjustment, reducing the pressure on the lifting part 8, and improving the service life of the pallet. The connecting hole and the A connecting block 95 correspond to the fixed position and the adjustment position, respectively. After moving to the adjustment position, the moving block 91 is connected to the B connecting block 96 with an O-pin to achieve the positioning of the moving block 91. Similarly, when moving to the fixed position, the A connecting block 95 and the B connecting block 96 are connected with an O-pin to achieve the positioning of the moving block 91.

[0044] The base plate 1 has four sliding grooves on its upper side. The moving block 91 has a guide shell 97 on its upper side. The moving block 91 is connected to a drive block 98 on both its upper and lower sides. The drive block 98 can slide inside the guide shell 97 and the sliding groove. A limit block 99 is provided on one side of the drive block 98. The limit block 99 can be installed inside the guide shell 97 and the sliding groove. The spring 92 is located between the drive block 98 and the limit block 99 and is connected to the drive block 98 and the limit block 99. The spring 92 can cooperate with the drive block 98 to assist in resetting and moving the moving block 91, which improves the convenience of moving the moving block 91.

[0045] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation on this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A height-adjustable plastic pallet, comprising a base plate (1), a top plate (2), four A-mounting shells (3) and four B-mounting shells (4), wherein the A-mounting shells (3) and B-mounting shells (4) are connected to the upper side of the base plate (1), and the top plate (2) is located above the A-mounting shells (3) and B-mounting shells (4), characterized in that, Also includes: Four A connecting plates (5) are located on the upper side of the A mounting shell (3). The lower side of the upper plate (2) is provided with four A mounting slots, and the A connecting plates (5) are installed inside the A mounting slots. Four lifting blocks (6), one side of the lifting block (6) is provided with an A positioning block (7), the A positioning block (7) is fixedly connected to the inner side of the B mounting shell (4), the lifting block (6) is connected to the lower side of the upper plate (2) and the lifting block (6) can slide inside the B mounting shell (4); A buffer ring (10) is connected to the outside of the base plate (1); The lifting part (8) is located between the four A mounting shells (3) and the four A connecting plates (5). The lifting part (8) can automatically move up and down with the upper plate (2). Four positioning units (9) are located between the lifting block (6) and the A positioning block (7). The positioning units (9) can support and position the upper plate (2) through the lifting block (6).

2. A height adjustable plastic pallet as claimed in claim 1 wherein, The lifting unit (8) includes four electric hydraulic lifting rods (81) and four batteries (82). A protective shell (83) slides inside the A mounting shell (3). The protective shell (83) is connected to the lower side of the A connecting plate (5). The electric hydraulic lifting rods (81) are installed on the upper side of the base plate (1) and the shaft end of the electric hydraulic lifting rods (81) is connected to the lower side of the A connecting plate (5). The batteries (82) are connected to the outer side of the A mounting shell (3). The electric hydraulic lifting rods (81) are connected to the batteries (82) and the controller through wires.

3. A height adjustable plastic pallet according to claim 2, wherein, The inner side of the A mounting shell (3) is provided with several A guide grooves, and an A guide strip (84) slides inside the A guide groove. The A guide strip (84) is connected to the outer side of the protective shell (83). A support block (85) is connected to the upper side of the bottom plate (1). An A sliding hole is provided on the upper side of the support block (85). A support column (86) slides inside the A sliding hole. The support column (86) is connected to the lower side of the upper plate (2).

4. The height adjustable plastic pallet of claim 1, wherein, The positioning unit (9) includes a moving block (91) and two springs (92). A B sliding hole is provided on one side of the B mounting shell (4), and the moving block (91) can slide inside the B sliding hole. The A positioning block (7) has several A positioning grooves on the side facing the moving block (91). The lifting block (6) has several B positioning grooves and an auxiliary groove on the side facing the moving block (91). The B positioning grooves and the auxiliary grooves are interconnected. Several A positioning strips (93) are fixed on both sides of the moving block (91). Several C positioning grooves are provided inside the B sliding hole, and the A positioning strips (93) can slide inside the A positioning grooves, B positioning grooves, C positioning grooves, and auxiliary grooves. A T-shaped auxiliary block (94) is connected to one side of the moving block (91). A connecting hole is provided on one side of the moving block (91), and an A connecting block (95) is provided below the T-shaped auxiliary block (94). The A connecting block (95) is connected to the B connecting block (96) on both sides by O-pins. The B connecting block (96) is connected to the B mounting shell (4). The moving block (91) is connected to the B connecting block (96) by O-pins and connecting holes. The bottom plate (1) has four sliding grooves on the upper side. The moving block (91) has a guide shell (97) on the upper side. The moving block (91) has driving blocks (98) connected to both the upper and lower sides. The driving block (98) can slide in the guide shell (97) and the sliding groove. The driving block (98) has an A limiting block (99) on one side. The A limiting block (99) can be installed in the guide shell (97) and the sliding groove. The spring (92) is located between the driving block (98) and the A limiting block (99) and the spring (92) is connected to the driving block (98) and the A limiting block (99).

5. A height adjustable plastic pallet according to claim 4, wherein, The lifting block (6) has B guide grooves on both sides and a limiting groove on the side of the lifting block (6) away from the A positioning block (7). A B guide strip (910) slides inside the B guide groove and a B limiting block (911) slides inside the limiting groove. The B guide strip (910) and the B limiting block (911) are connected to the inside of the B mounting shell (4).

6. A height adjustable plastic pallet as claimed in claim 4 wherein, The B mounting shell (4) has three positioning holes on one side. The moving block (91) is connected to three B positioning blocks (912) on the side away from the T-shaped auxiliary block (94). The B positioning blocks (912) can slide inside the positioning holes.

Images