Novel tray

Abstract

A novel tray comprises a bottom plate, a bearing plate is movably arranged on the bottom plate, and the novel tray is characterized in that a plurality of first inserting grooves are formed in the bottom plate, inserting rods are installed in the first inserting grooves in a sliding fit mode respectively, the inserting rods are fixedly installed on the bearing plate respectively, the inserting rods are connected with the corresponding first inserting grooves through elastic pieces respectively, and a plurality of first grooves are formed in the front side of the bottom plate. The first grooves are located in the outer side of the bearing plate, rotating shafts are rotationally arranged in the first grooves correspondingly, small gears and large gears are fixedly arranged on the peripheries of the rotating shafts correspondingly, racks are arranged on one sides of the small gears in a meshed and matched mode correspondingly, the racks are fixedly connected with the corresponding inserting rods, and guardrail plates are movably arranged on the sides, away from the racks, of the large gears correspondingly. The goods shelf is simple in structure and ingenious in conception, when goods are not placed, the guardrail plate is located in the first groove, after the goods are placed, under the action of the gravity of the goods, the guardrail plate moves out of the first groove and limits the goods, actual requirements can be met, and the goods shelf is suitable for popularization.

Description

Technical Field

[0001] This invention belongs to the field of logistics pallet technology, specifically a new type of pallet. Background Technology

[0002] With the rapid development of the social economy, logistics pallets are a medium that transforms static goods into dynamic goods. They are a type of cargo platform, and a mobile platform, or a movable ground. Even goods that lose their flexibility when placed on the ground immediately gain mobility and become flexible, mobile goods once loaded onto a pallet. However, during the process of moving goods with the pallet, especially when about to move or stop, the goods may shift off the pallet due to inertia. In a patent entitled "An Anti-sway Logistics Column Pallet" authorized by the State Intellectual Property Office on February 9, 2024, with the publication number CN220466054U, the aforementioned patent sets up guardrails around the pallet to prevent goods from falling off. However, the guardrails are always higher than the pallet, making it difficult to place goods on the pallet. Therefore, we have designed a pallet with guardrails that can be raised and lowered. Summary of the Invention

[0003] This invention provides a novel tray to overcome the shortcomings of the prior art.

[0004] This invention is achieved through the following technical solution:

[0005] A novel pallet includes a base plate with a movably mounted support plate on it. The base plate has several first slots, each containing a slidingly fitted rod. The rods are fixedly mounted on the support plate and connected to their respective slots via elastic elements. The front side of the base plate has several first grooves located outside the support plate. Each groove contains a rotating shaft, with a small gear and a large gear fixedly mounted on its outer circumference. A rack meshes with one side of each small gear, and the rack is fixedly connected to its corresponding rod. A guardrail is movably mounted on the side of the large gear away from the rack, allowing it to slide against the sidewall of the support plate. The guardrail is slidably mounted in its corresponding first groove and has toothed grooves that mesh with the large gear.

[0006] In the novel tray described above, the elastic element is a first spring.

[0007] As described above, in a novel pallet, several dovetail sliders are fixedly installed on the guardrail, and several dovetail grooves are opened on the side wall corresponding to the first groove, with the dovetail sliders slidably installed in the corresponding dovetail grooves.

[0008] As described above, in a novel type of tray, the large gear is slidably mounted on a rotating shaft, and the large gear can only slide along the axial direction of the rotating shaft. A retaining ring is fixedly mounted on the rotating shaft, and the retaining ring is connected to the large gear by a second spring. A smooth groove is provided on one side of the tooth groove. The small gear is rotatably mounted on the rotating shaft through a one-way bearing. A drive device for shifting the large gear is provided on one side.

[0009] As described above, in a novel pallet, the driving device includes an inverted Z-shaped rod, which is rotatably mounted on the base plate. One end of the inverted Z-shaped rod slides in contact with the side wall of the large gear, and the other end of the inverted Z-shaped rod is fixedly mounted with a foot rod.

[0010] As described above, in a novel type of tray, the bottom of the base plate is provided with a second slot.

[0011] As described above, in a novel pallet, the guardrail includes an upper plate and a lower plate. Several second grooves are formed on the lower plate. The inner wall of the second groove is connected to the upper plate by a third spring. A hinge shaft is fixedly installed on the upper plate, and a bearing seat is fixedly provided on the lower plate. The two ends of the hinge shaft are rotatably installed in the corresponding bearing seats. A rotating shaft is rotatably provided in the first groove. A support leg is fixedly installed on the outer periphery of the rotating shaft. A through groove is formed on the side wall of the first groove corresponding to the support leg. The rotating shaft and the hinge shaft are connected by a transmission device.

[0012] As described above, in a novel pallet, the transmission device includes a rotating shaft, which is a telescopic shaft. A first helical gear is fixedly mounted on one end of the hinge shaft, and a second helical gear is meshed with one side of the first helical gear. The second helical gear is fixedly mounted on the movable end of the rotating shaft.

[0013] As described above, in a novel type of tray, a square groove is formed on the large gear, and the rotating shaft is a square rod corresponding to the outer periphery of the large gear, with the square rod slidingly contacting and engaging with the square groove.

[0014] The advantages of this invention are: It has a simple structure and ingenious design. When no goods are placed on it, the guardrail is located within the first groove. After goods are placed on it, the guardrail moves outward from the first groove under the weight of the goods, thus limiting the movement of the goods. This meets practical needs and is suitable for widespread application. When using this invention, the goods are first placed on the support plate. Under the weight of the goods, the support plate moves closer to the bottom plate, causing the insert rod and rack to move towards the bottom plate. The rack drives the corresponding pinion, shaft, and gear to rotate. The rotation of the gear, through meshing with the tooth groove, causes the corresponding guardrail to move away from the bottom plate, so that the end of the guardrail exceeds the support plate, thereby limiting the movement of the goods and preventing them from tipping over or slipping. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 View from direction A; Figure 3 for Figure 1 A bottom view; Figure 4 for Figure 1 Enlarged view of section I; Figure 5 for Figure 1 Enlarged view of section II.

[0017] Reference numerals: 1. Base plate, 2. Bearing plate, 3. First slot, 4. Insert rod, 5. First groove, 6. Rotating shaft, 7. Through slot, 8. Small gear, 9. Large gear, 10. Rack, 11. Connecting rod, 12. Guardrail plate, 13. Tooth groove, 20. First spring, 30. Dovetail slider, 31. Dovetail groove, 41. Retaining ring, 42. Second spring, 43. Smooth groove, 50. Inverted Z-shaped rod, 51. Step rod, 60. Second slot, 70. Upper plate, 71. Lower plate, 72. Second groove, 73. Third spring, 74. First helical gear, 75. Second helical gear, 76. Rotating shaft, 77. Support leg, 78. Through slot, 90. Square slot, 91. Square rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] A new type of pallet, such as Figure 1 , 2As shown in Figures 3, 4, and 5, the device includes a base plate 1, on which a support plate 2 is movably mounted. The support plate 2 is located on the front side of the base plate 1. The device is characterized by: several first slots 3 formed on the base plate 1, each containing a slidingly fitted insert rod 4. The insert rods 4 are fixedly mounted on the support plate 2 and connected to their respective first slots 3 via elastic elements. Several first grooves 5 are formed on the front side of the base plate 1, located on the outer side of the support plate 2. In this embodiment, four first grooves 5 are provided, evenly distributed around the perimeter of the support plate 2. A rotating shaft 6 is rotatably mounted within each first groove 5, with both ends of the shaft 6 rotatably mounted on the corresponding sidewalls of the first groove 5 via bearings. A small gear 8 and a large gear 8 are fixedly mounted on the outer periphery of the rotating shaft 6. The gear 9, shaft 6, pinion 8, and gear 9 are coaxially arranged. A rack 10 is meshed with one side of the pinion 8. The rack 10 is fixedly connected to the corresponding insertion rod 4. In this embodiment, the pinion 8 is symmetrically distributed at both ends of the shaft 6. A through slot 7 is opened on the first slot 3. The through slot 7 connects the first slot 3 to the corresponding first groove 5. The rack 10 and the insertion rod 4 are fixedly connected by a connecting rod 11. The connecting rod 11 is slidably installed in the through slot 7. A guardrail 12 is movably provided on the side of the gear 9 away from the rack 10. The guardrail 12 can slide and contact the side wall of the bearing plate 2. The guardrail 12 is slidably installed in the corresponding first groove 5. A toothed groove 13 is opened on the guardrail 12. The gear 9 can mesh with the corresponding toothed groove 13. This invention features a simple structure and ingenious design. When no goods are placed on it, the guardrail 12 is located within the first groove 5. After goods are placed on it, the guardrail 12 moves outward from the first groove 5 under the weight of the goods, thus limiting the movement of the goods. This meets practical needs and is suitable for widespread application. When using this invention, the goods are first placed on the support plate 2. Under the weight of the goods, the support plate 2 moves closer to the base plate 1, causing the insert rod 4 and rack 10 to move towards the base plate 1. The rack 10 drives the corresponding pinion 8, shaft 6, and gear 9 to rotate. The rotation of the gear 9, through meshing with the tooth groove 13, causes the corresponding guardrail 12 to move away from the base plate 1, so that the end of the guardrail 12 exceeds the support plate 2, thereby limiting the movement of the goods.

[0020] Specifically, such as Figure 2 As shown, the elastic element in this embodiment is a first spring 20. The first spring 20 is coaxially arranged with the first slot 3 and the insertion rod 4. One end of the first spring 20 is fixedly connected to the bottom of the first slot 3, and the other end of the first spring 20 is fixedly connected to the lower end of the insertion rod 4. Several first springs 20 can act as a buffer when the goods are placed on the support plate 2 to prevent damage to the goods. In addition, when the goods are removed from the support plate 2, several first springs 20 can quickly drive the support plate 2 to return to its original position.

[0021] Furthermore, such as Figure 1As shown in the figure, in this embodiment, several dovetail sliders 30 are fixedly installed on the guardrail 12, and several dovetail grooves 31 are respectively opened on the side wall corresponding to the first groove 5. The dovetail sliders 30 are slidably installed in the corresponding dovetail grooves 31, and the inner wall of the dovetail groove 31 slides and contacts the corresponding outer wall of the dovetail slider 30. Through the cooperation of the dovetail sliders 30 and the dovetail grooves 31, the guardrail 12 can slide smoothly up and down along the inner wall of the first groove 5.

[0022] Furthermore, such as Figure 1 , Figure 5 As shown, in this embodiment, the large gear 9 is slidably mounted on the rotating shaft 6. The large gear 9 can only slide along the axial direction of the rotating shaft 6. A retaining ring 41 is fixedly mounted on the rotating shaft 6. The retaining ring 41 and the large gear 9 are connected by a second spring 42. The second spring 42 is fitted on the rotating shaft 6. One end of the second spring 42 is fixedly connected to the retaining ring 41, and the other end of the second spring 42 is fixedly connected to the side wall of the large gear 9. A groove 43 is provided on one side of the tooth groove 13. The small gear 8 is rotatably mounted on the rotating shaft 6 through a one-way bearing. A drive device for shifting the large gear 9 is provided on one side. The drive device moves the large gear 9, causing it to disengage from the tooth groove 13. At this point, the guardrail 12 can fall freely under the influence of gravity, and it no longer obstructs the goods, making it easier to remove them from the support plate 2. After the goods are removed, the weight of the support plate 2 is less than the elastic force of the elastic element, and the support plate 2 moves upward to reset. During this process, since the small gear 8 is rotatably mounted on the rotating shaft 6 through a one-way bearing, the small gear 8 will not drive the rotating shaft 6 and the large gear 9 to rotate.

[0023] Furthermore, such as Figure 1 , Figure 2 , Figure 3 As shown, the driving device in this embodiment includes an inverted Z-shaped rod 50, which is rotatably mounted on the base plate 1. The first groove 5 has pre-drilled holes. The inverted Z-shaped rod 50 passes through these holes and is rotatably mounted within them via bearings. One end of the inverted Z-shaped rod 50 slides against the side wall of the large gear 9, and the other end is fixedly mounted with a foot pedal 51. When the foot pedal 51 is stepped on, according to the lever principle, the end of the inverted Z-shaped rod 50 in contact with the side wall of the large gear 9 rotates. At this time, the end of the inverted Z-shaped rod 50 in contact with the side wall of the large gear 9 changes from inclined to horizontal, thereby pushing the large gear 9 into the light groove 43.

[0024] Furthermore, such as Figure 2 , Figure 3 As shown, the bottom of the base plate 1 in this embodiment is provided with a second slot 60, which is a cross slot, and the end of the cross slot is connected to the outside. The forklift forks can be inserted into the second slot 60 to lift the base plate 1.

[0025] Furthermore, such as Figure 2 , Figure 3 As shown, the guardrail 12 in this embodiment includes an upper plate 70 and a lower plate 71. Several second grooves 72 are formed on the lower plate 71. The inner wall of the second groove 72 is connected to the upper plate 70 by a third spring 73. The third spring 73 is coaxially arranged with the corresponding second groove 72. One end of the third spring 73 is fixedly connected to the bottom of the second groove 72, and the other end of the third spring 73 is fixedly connected to the lower side wall of the upper plate 70. A hinge shaft is fixedly installed on the upper plate 70, and a bearing is fixedly provided on the lower plate 71. The two ends of the hinge shaft are rotatably installed in the corresponding bearing. In this embodiment, two hinge shafts are provided on one guardrail 12 and are symmetrically distributed on both sides of the toothed groove 13. A rotating shaft 76 is rotatably provided in the first groove 5. The lower end of the rotating shaft 76 is rotatably installed in the first groove 5 through a bearing. A support leg 77 is fixedly installed on the outer periphery of the rotating shaft 76. A through groove 78 is formed on the side wall of the first groove 5 corresponding to the support leg 77. The rotating shaft 76 and the hinge shaft are connected by a transmission device. When the goods shift to one side, it will cause the center of gravity to become unbalanced. At this time, the goods will exert a pushing force on the upper plate 70 on one side. The upper plate 70 will drive the corresponding hinge shaft to rotate. The hinge shaft will drive the rotating shaft 76 and the support leg 77 to rotate through the transmission device. At this time, the outer end of the support leg 77 extends out from the corresponding through groove 78 to prevent the entire device from tipping over.

[0026] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the transmission device in this embodiment includes a rotating shaft 76, which is a telescopic shaft. The movable end of the rotating shaft 76 is rotatably mounted on the lower plate 71 via a bearing seat. A coaxial first helical gear 74 is fixedly mounted on one end of the hinge shaft. A second helical gear 75 is meshed with one side of the first helical gear 74. The second helical gear 75 is fixedly mounted on the movable end of the rotating shaft 76. The rotating shaft 76 and the second helical gear 75 are coaxially arranged, and the first helical gear 74 is coaxially arranged with the corresponding hinge shaft. When the hinge shaft rotates, it drives the corresponding first helical gear 74 to rotate. The first helical gear 74 then drives the corresponding second helical gear 75 and the rotating shaft 76 to rotate. When the guardrail plate 12 moves up and down, the rotating shaft 76, which is a telescopic shaft, can also change synchronously, so that the first helical gear 74 is always meshed with the second helical gear 75.

[0027] Furthermore, such as Figure 1 , Figure 5As shown, in this embodiment, the large gear 9 has a square groove 90, and the rotating shaft 6 has a square rod 91 corresponding to the outer periphery of the large gear 9. The square rod 91 and the square groove 90 are in sliding contact, and the inner wall of the square groove 90 is in sliding contact with the outer wall of the corresponding square rod 91. The sliding contact between the square rod 91 and the square groove 90 allows the large gear 9 to move axially along the rotating shaft 6, but it cannot rotate relative to the rotating shaft 6.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A novel tray comprising a base plate (1) on which a load bearing plate (2) is movably arranged, characterized in that: A plurality of first slots (3) are formed in the bottom plate (1), and the first slots (3) are respectively slidably connected with the inserting rods (4) which are fixedly arranged on the bearing plate (2), the inserting rods (4) are connected with the corresponding first slots (3) through elastic members, a plurality of first recesses (5) are formed in the front side of the bottom plate (1), the first recesses (5) are located outside the bearing plate (2), a rotating shaft (6) is rotatably arranged in each of the first recesses (5), a small gear (8) and a large gear (9) are fixedly arranged on the outer periphery of the rotating shaft (6), a rack (10) is arranged on one side of the small gear (8) in a meshing manner, the rack (10) is fixedly connected with the corresponding inserting rod (4), a guard plate (12) is movably arranged on the side of the large gear (9) away from the rack (10), the guard plate (12) can be in sliding contact with the side wall of the bearing plate (2), the guard plate (12) is slidably arranged in the corresponding first recess (5), a tooth groove (13) is formed in the guard plate (12), and the large gear (9) can be in meshing contact with the corresponding tooth groove (13).

2. A novel tray as claimed in claim 1, wherein: The elastic member is a first spring (20).

3. A novel tray as claimed in claim 1, wherein: A plurality of dovetail sliding blocks (30) are fixedly arranged on the guard plate (12), a plurality of dovetail sliding grooves (31) are formed in the corresponding side walls of the first recesses (5), and the dovetail sliding blocks (30) are slidably arranged in the corresponding dovetail sliding grooves (31).

4. A novel tray as claimed in claim 1, wherein: The large gear (9) is slidably arranged on the rotating shaft (6), the large gear (9) can only slide along the axis of the rotating shaft (6), a blocking ring (41) is fixedly arranged on the rotating shaft (6), the blocking ring (41) is connected with the large gear (9) through a second spring (42), a light groove (43) is arranged on one side of the tooth groove (13), the small gear (8) is rotatably arranged on the rotating shaft (6) through a one-way bearing, and one side of the large gear (9) is provided with a driving device for shifting the large gear (9).

5. A novel tray as claimed in claim 4, wherein: The driving device comprises inverted Z-shaped rods (50), the inverted Z-shaped rods (50) are rotatably arranged on the bottom plate (1), one end of the inverted Z-shaped rod (50) is in sliding contact with the side wall of the large gear (9), and the other end of the inverted Z-shaped rod (50) is fixedly arranged with a stepping rod (51).

6. A novel tray as claimed in claim 1, wherein: The bottom of the bottom plate (1) is provided with a second slot (60).

7. A novel tray as claimed in claim 1, wherein: The guard plate (12) comprises an upper plate (70) and a lower plate (71), a plurality of second recesses (72) are formed in the lower plate (71), the inner walls of the second recesses (72) are connected with the upper plate (70) through a third spring (73), a hinge shaft is fixedly arranged on the upper plate (70), an axle seat is fixedly arranged on the lower plate (71), the two ends of the hinge shaft are rotatably arranged in the corresponding axle seats, a rotating shaft (76) is rotatably arranged in the first recess (5), a supporting leg (77) is fixedly arranged on the outer periphery of the rotating shaft (76), a through groove (78) is formed in the side wall of the first recess (5) corresponding to the supporting leg (77), and the rotating shaft (76) and the hinge shaft are drivingly connected through a transmission device.

8. A novel tray as claimed in claim 7, characterized in that: The transmission device comprises a rotating shaft (76), the rotating shaft (76) is a telescopic shaft, a coaxial first helical gear (74) is fixedly installed at one end of the articulated shaft, a second helical gear (75) is engaged and matched on one side of the first helical gear (74), and the second helical gear (75) is fixedly installed at the movable end of the rotating shaft (76).

9. A novel tray as claimed in claim 4, wherein: The gear (9) is provided with a square groove (90), and the rotating shaft (6) is provided with a square rod (91) corresponding to the outer periphery of the gear (9). The square rod (91) is in sliding contact with the square groove (90).

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