A pallet that can be adjusted and fixed according to the size of the goods.

Abstract

This invention relates to the field of plastic pallet technology, specifically to a pallet that can be adjusted and fixed according to the size of the goods. It includes a base frame and a turntable frame. The turntable frame has pallet plates that slide against it along its diagonal direction. Each pallet plate has a slider that is detachably slidably mounted along its diagonal direction. The top of each slider rotatably abuts against a rotating ring. Symmetrically connected to the sidewalls of the rotating ring are abutment plates and abutment rings. Sliding seats are slidably mounted on both sides of the four edges at the bottom of the base frame. When dealing with goods whose placement surface is larger than the turntable frame's support surface, this invention, by adjusting the position of the pallet plates to reduce the unsupported portions at the four corners of the goods placement surface, provides upward reverse support from the pallet plates. Simultaneously, by adjusting the position of the sliders to ensure that the abutment plates or abutment rings are always firmly abutted against the sidewalls of the goods, the side abutment plates or abutment rings provide inward reverse support from the side.

Description

Technical Field

[0001] This invention relates to the field of plastic pallet technology, and more specifically to a pallet that can be adjusted and fixed according to the size of the goods. Background Technology

[0002] Plastic pallets are logistics units used in conjunction with forklifts or racking equipment. They are used to store, load, and move goods and are an indispensable piece of logistics equipment in modern warehousing. Plastic pallets are products created to meet environmental protection needs, and they are the best alternative to wooden pallets, reducing deforestation. Plastic pallets are favored and sought after by various industries for their corrosion resistance, moisture resistance, rust resistance, insect resistance, and mold resistance. In addition, plastic pallets have high load-bearing capacity and long service life. In actual work, goods can be temporarily transferred using a single plastic pallet, or multiple plastic pallets can be stacked layer by layer to a certain height and then transported to the racking by a forklift for overall transportation.

[0003] Existing plastic pallets are generally square in shape. When in use, goods are packed into square or round shapes and stacked on top of the pallet. In actual use, due to the inconsistent size of the goods, the bottom of the goods may be larger than the flat support of the pallet. This results in a lot of unsupported parts between the bottom of the goods and the pallet support surface. In other words, there are many unsupported parts around the bottom of the goods. During the handling of pallets and goods, the goods may tip over towards the unsupported parts due to shaking or collision, which may cause the goods to fall off the plastic pallet.

[0004] Therefore, it is necessary to invent a pallet that can be adjusted and fixed according to the size of the goods to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a pallet that can be adjusted and fixed according to the size of the goods. This solves the problem that in actual use, due to inconsistent goods sizes, the bottom of the goods may be larger than the pallet's support surface, resulting in a large number of unsupported portions between the bottom of the goods and the pallet's support surface. In other words, there are many unsupported portions around the bottom of the goods. During the handling of the pallet and the goods, the goods are prone to tipping towards the unsupported portions due to shaking or collision, which may lead to the goods falling off the plastic pallet.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pallet adjustable and fixed according to the size of goods includes a chassis frame and a turntable frame rotatably abutting against the top side of the chassis frame. Each of the four corners of the turntable frame has a pallet plate slidably abutting against it along its diagonal direction. Each pallet plate has a slider detachably slidably mounted along its diagonal direction. The top of each slider rotatably abuts against a rotating ring. Symmetrically connected to the sidewalls of the rotating ring are abutting plates and abutting rings. Sliding seats are slidably mounted on both sides of the four edges at the bottom of the chassis frame. Rotating rods are rotatably connected to the sliding seats. A guide limiting ring plate is rotatably connected between the ends of two adjacent rotating rods located on the same diagonal side, away from the sliding seats. The sidewalls of the guide limiting ring plate abut against the sidewalls of the pallets.

[0008] As a preferred embodiment of the present invention, the chassis frame has mounting grooves on all four sides at the bottom end, and a slide rail can be detachably embedded in each mounting groove. Two slide blocks are slidably connected to both sides of the slide rail, and the slide blocks can be locked at any position on the slide rail.

[0009] As a preferred embodiment of the present invention, the tray has a slot along its diagonal direction, a locking post is detachably embedded in the slot, the slider is slidably sleeved on the locking post, and the portions of the locking post on both sides of the slider are sleeved with springs that can restrict the sliding of the slider.

[0010] As a preferred embodiment of the present invention, the rotating rod and the slide are rotatably connected by a connecting frame, and a rotating column that can be rotatably inserted through one side of the guide limiting ring plate is connected to the other end of the rotating rod.

[0011] As a preferred embodiment of the present invention, the chassis frame has a through hole at its center, and the bottom center of the turntable frame is connected to a positioning post that rotates through the through hole and extends to the bottom of the chassis frame. The chassis frame has multiple positioning ring grooves, and each of the adapting positions at the bottom of the turntable frame is connected to a positioning stud that can slide along the positioning ring groove. The portion of the positioning stud located below the chassis frame is threaded with a first nut.

[0012] As a preferred embodiment of the present invention, each of the four corners of the turntable frame is provided with a movable groove for the pallet to slide along the diagonal, and each of the pallets is provided with a guide groove at a symmetrical position on both sides of the diagonal as the center line. Each movable groove is connected with a guide post that can slide along the guide groove.

[0013] In a preferred embodiment of the present invention, the top of the slider is connected to a mounting stud, the rotating ring is rotatably sleeved on the mounting stud, and the portion of the mounting stud located above the rotating ring is threaded with a second nut.

[0014] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0015] This invention uses a turntable frame as the pallet placement surface, and slides pallets at each of the four corners of the turntable frame to accommodate goods whose bottom surface is larger than the turntable frame's support surface after packaging. This ensures that when the bottom surface of the goods is larger than the turntable frame's support surface, the pallets can extend outwards along the diagonal direction, thus ensuring that the previously unsupported portions at the four corners of the goods' bottom are supported. By adjusting the pallet position to reduce the unsupported portions at the four corners of the goods' bottom, and by extending the sliding slider outwards along the diagonal direction, the abutment plate or abutment ring abuts and locks against the sidewalls of the goods, thereby securing the goods... The side walls provide clamping support, ultimately enabling the following when dealing with goods whose placement surface is larger than the turntable support surface: Firstly, by adjusting the position of the pallet to reduce the unsupported portions at the four corners of the placement surface, the pallet provides upward counter-support in case of subsequent tilting due to shaking or collision. Secondly, by adjusting the position of the slider to ensure that the abutment plate or abutment ring is always in contact with and clamped against the side walls of the goods, the abutment plate or abutment ring on the side provides inward counter-support in case of subsequent tilting due to shaking or collision. This ultimately increases the stability of the adjustment and fixation, preventing goods from tilting during transportation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the planar front view structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the planar top view structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the planar bottom view structure of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Chassis frame; 2. Turntable frame; 3. Positioning pin; 4. Positioning ring groove; 5. Positioning stud; 6. Support plate; 7. Guide groove; 8. Guide pin; 9. Slot; 10. Slot; 11. Slider; 12. Mounting stud; 13. Rotary ring; 14. Abutment plate; 15. Abutment ring; 16. Mounting groove; 17. Slide rail; 18. Slide seat; 19. Connecting frame; 20. Rotating rod; 21. Guide limit ring plate; 22. Rotary pin; 23. Spring; 24. First nut; 25. Second nut; 26. Movable groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0023] This invention provides, for example Figure 1-4 The pallet shown is adjustable and fixed according to the size of the goods. It includes a base frame 1 and a turntable frame 2 that rotatably abuts against the top side of the base frame 1. Each of the four corners of the turntable frame 2 has a pallet plate 6 that slides against it along its diagonal direction. Each pallet plate 6 has a slider 11 that is detachably slidably mounted along its diagonal direction. The top of the slider 11 rotatably abuts against a rotating ring 13. The side walls of the rotating ring 13 are symmetrically connected to abutment plates 14 and abutment rings 15. Each of the four sides of the bottom of the base frame 1 has a sliding seat 18 that is rotatably mounted on a rotating rod 20. A guide limiting ring plate 21 is rotatably connected between the ends of two adjacent rotating rods 20 located on the same diagonal and away from the sliding seat 18. The side walls of the guide limiting ring plate 21 abut against the side walls of the pallet plate 6. By rotating the turntable frame 2 and the base frame 1, the turntable frame 2 can be rotated to change the placement position of the goods on the pallet without moving the base frame 1 supported on the ground.

[0024] The chassis frame 1 has mounting grooves 16 on all four sides at the bottom. Each mounting groove 16 can be detachably fitted with a slide rail 17. Two slide blocks 18 are slidably connected to both sides of the slide rail 17, and the slide blocks 18 can be locked at any position on the slide rail 17. When the size of the cargo placement surface is larger than the support surface of the turntable frame 2, the slide blocks 18 are slid towards the end of the slide rail 17. Then, the rotating rods 20 on both sides drive the guide limiting ring plate 21 to move outward along the diagonal direction of the turntable frame 2, thereby driving the pallet 6 to slide outward along its diagonal direction, thus moving the pallet 6 to the four corners of the cargo placement surface, thereby providing upward support for the unsupported parts at the four corners.

[0025] The pallet 6 has a slot 9 along its diagonal direction. A locking post 10 is detachably embedded in the slot 9. The slider 11 is slidably sleeved on the locking post 10. The parts of the locking post 10 on both sides of the slider 11 are fitted with springs 23 to restrict the sliding of the slider 11. The abutment plate 14 and the abutment ring 15 can respectively abut and lock the directional or round goods. In the initial state, the slider 11 is stationary in the middle of the locking post 10. When the size of the goods increases, the slider 11 moves away from the center of the turntable frame 2 along the locking post 10 until the abutment plate 14 or the abutment ring 15 abuts against the side wall of the goods. During the process, one of the springs 23 is compressed and the other spring 23 is stretched, providing damping for the sliding of the slider 11 and restoring potential energy.

[0026] The rotating rod 20 is rotatably connected to the slide block 18 via a connecting frame 19. The other end of the rotating rod 20 is connected to a rotating column 22 that can rotatably pass through one side of the guide limiting ring plate 21. During the sliding of the slide block 18 along the slide rail 17, one end of the rotating rod 20 is rotatably connected to the slide block 18 via the connecting frame 19, thereby changing the position of one end of the rotating rod 20 and the angle between it and the slide rail 17, thereby driving the guide limiting ring plate 21 to move.

[0027] The chassis frame 1 has a through hole in the center. The bottom center of the turntable frame 2 is connected to a positioning post 3 that rotates through the through hole and extends to the bottom of the chassis frame 1. The chassis frame 1 has multiple positioning ring grooves 4. The bottom of the turntable frame 2 is connected to a positioning stud 5 that can slide along the positioning ring groove 4. The part of the positioning stud 5 located below the chassis frame 1 is threaded with a first nut 24. The positioning post 3 and the through hole can ensure that the turntable frame 2 always rotates concentrically with the chassis frame 1. When it is necessary to lock the position between the turntable frame 2 and the chassis frame 1, the first nut 24 is rotated until it abuts against the chassis frame 1.

[0028] The turntable frame 2 has movable grooves 26 at each of its four corners, allowing the pallet 6 to slide along the diagonal. The pallet 6 has guide grooves 7 symmetrically positioned on both sides of its diagonal. Guide posts 8 that can slide along the guide grooves 7 are connected to the movable grooves 26 at their respective positions. Since the guiding direction of the guide grooves 7 is consistent with the diagonal direction of the turntable frame 2, when the guide limiting ring plate 21 moves the pallet 6, the guide posts 8 slide along the guide grooves 7, thereby ensuring that the pallet 6 moves along the diagonal direction of the turntable frame 2.

[0029] The top of the slider 11 is connected to a mounting stud 12. The rotating ring 13 is rotatably sleeved on the mounting stud 12, and the portion of the mounting stud 12 above the rotating ring 13 is threaded with a second nut 25. When facing square or round goods, the rotating ring 13 is rotated to change the position of the abutment plate 14 and the abutment ring 15, so that the abutment plate 14 is for square goods and the abutment ring 15 is for round goods. The second nut 25 can lock the position of the rotating ring 13 on the mounting stud 12, thereby fixing the position of the abutment plate 14 or the abutment ring 15.

[0030] This invention uses a turntable frame 2 as the pallet placement surface, and slidably abuts against four corners of the turntable frame 2 with pallet plates 6 to accommodate goods whose bottom placement surface is larger than the supporting surface of the turntable frame 2 after packaging. This ensures that when the bottom placement surface of the goods is larger than the supporting surface of the turntable frame 2, the pallet plates 6 can extend outward along the diagonal direction, thus ensuring that the originally unsupported portions at the four corners of the goods' bottom are supported. While adjusting the position of the pallet plates 6 to reduce the unsupported portions at the four corners of the goods' bottom, a sliding slider 11 extends outward along the diagonal direction, causing the abutment plate 14 or abutment ring 15 to abut and lock against the sidewall of the goods, thereby securing the goods. The side walls provide clamping support, ultimately enabling the following when the cargo placement surface is larger than the support surface of the turntable 2: on the one hand, by adjusting the position of the pallet 6 to reduce the unsupported portion at the four corners of the cargo placement surface, the pallet 6 provides upward reverse support force in the event of subsequent tilting due to shaking or collision; on the other hand, by adjusting the position of the slider 11 to ensure that the abutment plate 14 or abutment ring 15 is always in contact with and clamped against the side walls of the cargo, the abutment plate 14 or abutment ring 15 on the side provides inward reverse support force in the event of subsequent tilting due to shaking or collision, thus increasing the stability of the adjustment and fixing and preventing the cargo from tilting during transportation.

[0031] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pallet that can be adjusted and fixed according to the size of the goods, characterized in that: The chassis includes a chassis frame (1) and a turntable frame (2) that rotatably abuts against the top side of the chassis frame (1). Each of the four corners of the turntable frame (2) is slidably abutted against a support plate (6) along its diagonal direction. Each support plate (6) is detachably slidably provided with a slider (11) along its diagonal direction. The top of the slider (11) is rotatably abutted against a rotating ring (13). The circumferential sidewall of the rotating ring (13) is detachably connected with a stop plate (14) and a stop ring (15) respectively. Each of the four sides of the bottom end of the chassis frame (1) is slidably provided with a slide seat (18). The slide seat (18) is rotatably connected with a rotating rod (20). The ends of two adjacent rotating rods (20) located on the same diagonal are rotatably connected with a guide limiting ring plate (21) away from the slide seat (18). The circumferential sidewall of the guide limiting ring plate (21) abuts against the sidewall of the support plate (6). The chassis frame (1) has mounting grooves (16) on all four sides at the bottom. Each mounting groove (16) can be detachably fitted with a slide rail (17). Two slide blocks (18) are slidably connected to both sides of the slide rail (17), and the slide blocks (18) can be locked at any position on the slide rail (17). The tray (6) has a slot (9) along its diagonal direction. A locking post (10) is detachably embedded in the slot (9). The slider (11) is slidably sleeved on the locking post (10). The portion of the locking post (10) located on both sides of the slider (11) is sleeved with a spring (23) that can restrict the sliding of the slider (11). The chassis frame (1) has a through hole in the center. The turntable frame (2) has a rotatable through hole connected to the center of the bottom end, and a positioning post (3) extending to the bottom of the chassis frame (1). The chassis frame (1) has multiple positioning ring grooves (4). The bottom end of the turntable frame (2) is connected to a positioning stud (5) that can slide along the positioning ring groove (4). The positioning stud (5) located below the chassis frame (1) is threaded with a first nut (24).

2. The pallet that can be adjusted and fixed according to the size of the goods as described in claim 1, characterized in that: The rotating rod (20) and the slide (18) are rotatably connected by a connecting frame (19), and a rotating column (22) that can be rotatably inserted through one side of the guide limiting ring plate (21) is connected above the other end of the rotating rod (20).

3. The pallet that can be adjusted and fixed according to the size of the goods as described in claim 1, characterized in that: The turntable frame (2) has movable grooves (26) at each of its four corners, allowing the pallet (6) to slide along the diagonal. The pallet (6) has guide grooves (7) symmetrically located on both sides of its diagonal. The movable grooves (26) are connected to guide posts (8) that can slide along the guide grooves (7).

4. The pallet that can be adjusted and fixed according to the size of the goods as described in claim 1, characterized in that: The top of the slider (11) is connected to a mounting stud (12), the swivel ring (13) is rotatably sleeved on the mounting stud (12), and the portion of the mounting stud (12) above the swivel ring (13) is threaded with a second nut (25).

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