Logistics turnover box convenient to stack

Abstract

The invention relates to the technical field of turnover boxes, in particular to a logistics turnover box convenient to stack. According to the technical scheme, the device comprises a box body, a bottom frame, a pressing plate, an ejector rod, mounting shafts, a clamping block and an oil cylinder, the bottom frame is arranged at the lower end of the box body, a top cover is arranged at the upper end of the box body, mounting plates are arranged at the two ends of the top cover, the mounting shafts are inserted into bearings, the clamping block is sleeved with the center of each mounting shaft, and clamping teeth are arranged at one end of each clamping block. Conical plates are arranged on the two sides of the lower end of the box body, a torsional spring is connected to the outer side of a mounting shaft in a sleeving mode, a pressing plate is arranged in the bottom frame, a first spring is arranged at the upper end of the pressing plate, an ejector rod is slidably inserted into a sliding sleeve, and a second spring is connected to the outer side of the ejector rod in a sleeving mode. According to the turnover box stacking device, through cooperation of the clamping blocks elastically supported through elastic torsion of the torsional springs and the conical plates, stacked turnover boxes are meshed and fixed, and the problems that during multi-layer stacking, the turnover boxes are prone to moving or inclining due to lack of grabbing force or a locking function, and stacking is inconvenient are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of turnover boxes, and in particular to a logistics turnover box which is convenient for stacking. Background Art

[0002] A turnover box is a portable box or container used to store and carry various items. This box usually has a durable shell and a convenient handle. It is usually used to store items such as clothing, documents, tools, etc. It is used when traveling, moving or transporting items. It can also be used as a travel case or suitcase.

[0003] During storage or transportation, turnover boxes are stacked together, but most of the turnover boxes have smooth outer walls. The smooth outer wall design of the turnover boxes provides advantages in some aspects, such as reducing friction and facilitating cleaning. However, this design may also bring stability problems during stacking. Since the smooth outer wall lacks gripping force or locking function when stacked in multiple layers, the turnover boxes are prone to move or tilt, resulting in the entire stacking structure being unstable and inconvenient for stacking during storage and transportation of the turnover boxes. Therefore, those skilled in the art provide a logistics turnover box that is easy to stack to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to provide a logistics turnover box that is easy to stack in view of the problems existing in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a logistics turnover box that is convenient for stacking, comprising a box body, a bottom frame, a pressure plate, a push rod, a mounting shaft, a block and an oil cylinder, characterized in that: a bottom frame is arranged at the lower end of the box body, a top cover is arranged at the upper end of the box body, two groups of symmetrically distributed mounting plates are arranged at both ends of the top cover, a bearing is embedded and installed inside the mounting plate, a mounting shaft is rotatably inserted inside the bearing, a block is sleeved at the center of the mounting shaft, a clamping tooth is arranged at one end of the block, cone plates are arranged on both sides of the lower end of the box body, torsion springs symmetrically distributed and connected to the block and the mounting shaft at both ends are sleeved on the outside of the mounting shaft, a pressure plate is arranged inside the bottom frame, a spring 1 connected to the inner wall of the upper end of the bottom frame is arranged on the upper end of the pressure plate, sliding sleeves are embedded and installed at both ends of the bottom frame, a push rod is slidably inserted inside the sliding sleeve, and a spring 2 with one end connected to the outer wall of the bottom frame is sleeved on the outside of the push rod.

[0006] Preferably, the lower end of the cone plate and the upper end of the block are both provided with cone surfaces with the same slope, and the outer wall of the box is sleeved with a heat preservation layer. When the cone surface of the block faces the cone surface of the corresponding cone plate, the longitudinal extrusion force reduces the resistance and wear of the structural parts during docking, and the heat preservation layer plays a role in heat preservation of the box.

[0007] Preferably, the inner diameter of the bottom frame is larger than the outer diameter of the top cover, the bottom frame and the top cover are both rectangular, and the outer diameter of the top cover is smaller than the outer diameter of the box body. The bottom frame is effectively sleeved on the outside of the top cover.

[0008] Preferably, a ball is rotatably mounted inside the lower end of the pressure plate, and the outer walls of both ends of the pressure plate are provided with extrusion surfaces. A force-bearing ball is provided at one end of the top rod, and the force-bearing ball is located above the extrusion surface. When the bottom frame and the top cover are docked, the ball fits with the upper end of the top cover to provide rolling support for the pressure plate. When the pressure plate rises, the force-bearing ball is squeezed by the extrusion surface, and when the force-bearing ball is squeezed by the extrusion surface, the resistance and wear of the contact surface are reduced.

[0009] Preferably, a top ball is provided at one end of the push rod, a limiting ring is sleeved on the outer wall of the push rod, and one end of the spring 2 is connected to the limiting ring. When the arc-shaped outer wall of the top ball presses the block, the wear and resistance of the top ball are reduced, and the elastic force of the spring 2 is applied to the push rod through the limiting ring.

[0010] Preferably, a handle is connected between the blocks, a plurality of through holes are opened inside the pressure plate, and a plurality of guide rods located inside the spring and slidably inserted into the through holes are arranged at the lower end of the box body.

[0011] Preferably, both ends of the installation shaft are provided with a rotating shaft, and the outer side of the rotating shaft is sleeved with an oil cylinder and a plug rod that are slidably plugged in each other. The rotating shaft rotates with the installation shaft, and the rotating shaft rotates through the installation shaft linkage.

[0012] Preferably, one end of the oil cylinder is provided with a fixing block 1 connected to the mounting plate, and one end of the plug rod is provided with a fixing block 2 connected to the rotating shaft. The oil cylinder is connected to the mounting plate through the fixing block 1, and the plug rod is connected to the rotating shaft 1 through the fixing block 2.

[0013] Preferably, a sealing ring is embedded in the opening of one end of the oil cylinder, one end of the plug rod is slidably inserted in the sealing ring, and one end of the plug rod is provided with a piston slidably installed in the oil cylinder. The plug rod slides in the oil cylinder through the sealing ring, which provides sliding support for the plug rod and seals the hydraulic oil in the oil cylinder.

[0014] Preferably, the piston is spherical, two sets of one-way valves are arranged relatively inside the piston, the oil cylinder and the plug rod are both arc-shaped, and the oil cylinder, the plug rod and the sealing ring are all centered on the rotating shaft. The one-way valve inside the piston allows the hydraulic oil flowing in different directions to be squeezed through, and the hydraulic oil exerts resistance on the piston through the small diameter of the one-way valve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When the turnover boxes are stacked, the bottom frame at the lower end is sleeved on the outer side of the top cover, and the cone plate squeezes the clamping block. When the cone plate passes through the clamping block, the torsion spring is used to reset the cone plate in one direction, and the clamping block is clamped on the upper end of the cone plate, which effectively bites and fixes the cone plate. When the turnover boxes are stacked, the stacked turnover boxes are firmly attached together.

[0017] At the same time, when disassembling, the turnover box is squeezed from top to bottom, the pressure plate is lifted up by force, the pressure plate pushes out the push rod, and then squeezes the block, so that the block is separated from the cone plate, and then the stacked turnover boxes are separated and taken out, which is convenient for the stacking of tubes during storage box transportation, with high stacking stability and better longitudinal utilization of storage space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention when viewed from the bottom at a first angle;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention when viewed from the bottom at a first angle;

[0021] Figure 4 It is a bottom-up three-dimensional structural schematic diagram of the guide rod of the present invention;

[0022] Figure 5 It is a schematic diagram of the main three-dimensional structure of the guide rod of the present invention;

[0023] Figure 6 It is a schematic diagram of the main three-dimensional structure of the top rod of the present invention;

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the card block of the present invention from a side view;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the oil cylinder in side section of the present invention.

[0026] : Illustrations: 1. box body; 2. insulation layer; 3. bottom frame; 4. top cover; 5. pressure plate; 6. ball bearing; 7. cone plate; 8. guide rod; 9. spring one; 10. through hole; 11. top ball; 12. limit ring; 13. spring two; 14. sleeve; 15. push rod; 16. force-bearing ball; 17. extrusion surface; 18. pull handle; 19. block; 20. tooth; 21. cone surface; 22. mounting shaft; 23. torsion spring; 24. mounting plate; 25. oil cylinder; 26. rotating shaft; 27. plug rod; 28. fixing block one; 29. ​​fixing block two; 30. bearing; 31. sealing ring; 32. piston; 33. one-way valve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 8 , the present invention provides three embodiments:

[0029] Embodiment 1:

[0030] A logistics turnover box convenient for stacking comprises a box body 1, a bottom frame 3, a pressure plate 5, a push rod 15, a mounting shaft 22, a clamping block 19 and an oil cylinder 25. The box body 1 is provided with a bottom frame 3 at the lower end, a top cover 4 is provided at the upper end, two sets of symmetrically distributed mounting plates 24 are provided at both ends of the top cover 4, a bearing 30 is embedded and installed inside the mounting plate 24, a mounting shaft 22 is rotatably plugged inside the bearing 30, a clamping block 19 is sleeved at the center of the mounting shaft 22, a clamping tooth 20 is provided at one end of the clamping block 19, cone plates 7 are provided on both sides of the lower end of the box body 1, symmetrically distributed torsion springs 23 connected to the clamping block 19 and the mounting shaft 22 at both ends are sleeved on the outer side of the mounting shaft 22, cone surfaces 21 with the same inclination are provided at the lower end of the cone plate 7 and the upper end of the clamping block 19, and a thermal insulation layer 2 is sleeved on the outer wall of the box body 1.

[0031] The box body 1 is a turnover box body. When storing or transporting the box body 1, the bottom frame 3 is placed on the top cover 4 at the upper end of the stacked box body 1. The ball 6 is fixed on the top cover 4. The ball 6 slides on the top cover 4 and is elastically supported by a spring 9. When the spring 9 is used, it is guided by the guide rod 8 for longitudinal movement. The ball 6 slides on the top cover 4, which is convenient for adjusting the position of the top cover 4 and reduces the laboriousness of adjusting the box body 1. After the bottom frame 3 corresponds to the top cover 4, it is sleeved on the outer side of the top cover 4.

[0032] At this time, through the weight of the box body 1 itself, the cone plate 7 and the block 19 are docked through the cone surface 21, the cone plate 7 squeezes the block 19, and through the diversion of the cone surface 21, the block 19 rotates outward through the installation shaft 22, and the torsion spring 23 twists when the block 19 rotates. When the cone surfaces 21 are misaligned with each other, after the block 19 loses the squeezing of the cone plate 7, the torsional elastic support of the torsion spring 23 pushes the block 19 to rotate and reset, and is clamped to the upper end of the cone plate 7, the cone plate 7 is clamped and fixed, the stacked box body 1 is effectively fixed, and the fixing parts are automatically docked, no additional installation is required, it is easy to use, the stacked turnover boxes are more stable, and the longitudinal space of the storage point is effectively utilized.

[0033] Embodiment 2:

[0034] It includes a box body 1, a bottom frame 3, a pressure plate 5, a push rod 15, a mounting shaft 22, a clamping block 19 and an oil cylinder 25. The bottom frame 3 is arranged at the lower end of the box body 1, and the top cover 4 is arranged at the upper end of the box body 1. Two groups of symmetrically distributed mounting plates 24 are arranged at both ends of the top cover 4. A bearing 30 is embedded and installed inside the mounting plate 24. The mounting shaft 22 is rotatably plugged inside the bearing 30. A clamping block 19 is sleeved at the center of the mounting shaft 22. A clamping tooth 20 is arranged at one end of the clamping block 19. Conical plates 7 are arranged on both sides of the lower end of the box body 1. The outer side of the mounting shaft 22 is sleeved with symmetrically distributed torsion springs 23 connected to the clamping block 19 and the mounting shaft 22 at both ends. The lower end of the cone plate 7 and the upper end of the clamping block 19 are provided with cone surfaces 21 with the same inclination. The outer wall of the box body 1 is sleeved with an insulation layer 2.

[0035] The box body 1 is a turnover box body. When storing or transporting the box body 1, the bottom frame 3 is placed on the top cover 4 at the upper end of the stacked box body 1. The ball 6 is fixed on the top cover 4. The ball 6 slides on the top cover 4 and is elastically supported by a spring 9. When the spring 9 is used, it is guided by the guide rod 8 for longitudinal movement. The ball 6 slides on the top cover 4, which is convenient for adjusting the position of the top cover 4 and reduces the laboriousness of adjusting the box body 1. After the bottom frame 3 corresponds to the top cover 4, it is sleeved on the outer side of the top cover 4.

[0036] At this time, through the weight of the box body 1 itself, the cone plate 7 and the block 19 are docked through the cone surface 21, the cone plate 7 squeezes the block 19, and through the diversion of the cone surface 21, the block 19 rotates outward through the mounting shaft 22, and the torsion spring 23 twists when the block 19 rotates. When the cone surfaces 21 are misaligned with each other, after the block 19 loses the squeezing of the cone plate 7, the torsional elastic support of the torsion spring 23 pushes the block 19 to rotate and reset, and is clamped to the upper end of the cone plate 7, and the cone plate 7 is clamped and fixed. The stacked box body 1 is effectively fixed, and the fixing parts are automatically docked, without the need for additional installation, and it is convenient to use. The stacked turnover boxes are more stable, and the longitudinal space of the storage point is effectively utilized.

[0037] A pressure plate 5 is arranged inside the bottom frame 3, and a spring 9 connected to the inner wall of the upper end of the bottom frame 3 is arranged on the upper end of the pressure plate 5. Sliding sleeves 14 are embedded and installed at both ends of the bottom frame 3. A push rod 15 is slidably inserted inside the sliding sleeve 14, and a spring 13 with one end connected to the outer wall of the bottom frame 3 is sleeved on the outer side of the push rod 15.

[0038] The inner diameter of the bottom frame 3 is larger than the outer diameter of the top cover 4 . The bottom frame 3 and the top cover 4 are both rectangular, and the outer diameter of the top cover 4 is smaller than the outer diameter of the box body 1 .

[0039] A ball 6 is rotatably mounted inside the lower end of the pressure plate 5 , and an extrusion surface 17 is provided on the outer walls of both ends of one end of the pressure plate 5 . A force-bearing ball 16 is provided at one end of the push rod 15 , and the force-bearing ball 16 is located above the extrusion surface 17 .

[0040] A top ball 11 is arranged at one end of the top rod 15 , a limit ring 12 is sleeved on the outer wall of the top rod 15 , and one end of the spring 13 is connected to the limit ring 12 .

[0041] A pull handle 18 is connected between the blocks 19 , a plurality of through holes 10 are provided inside the pressure plate 5 , and a plurality of guide rods 8 located inside the spring and slidably inserted into the through holes 10 are provided at the lower end of the box body 1 .

[0042] When the stacked boxes 1 need to be taken out, an extrusion force is applied to the upper end of the stacked boxes 1, and the extrusion force acts on the spring 1 9 through the pressure plate 5. The spring 1 9 is forced to contract and squeeze the force-bearing ball 16 through the extrusion surface 17. When the force-bearing ball 16 is squeezed, it drives the push rod 15 to move inside the sliding sleeve 14, and the spring 2 13 is pulled up by the force, driving the push rod 15 to move toward the outside of the bottom frame 3. The top ball 11 moves with the push rod 15, and then squeezes the block 19 outward, so that the block 19 rotates. When the block 19 moves out of the cone plate 7, the stacked boxes 1 are released, and the boxes 1 are effectively taken out. When the bite fixation is released, it can be achieved by only squeezing the box 1, and the removal of the box 1 is time-saving and convenient.

[0043] Embodiment three:

[0044] It includes a box body 1, a bottom frame 3, a pressure plate 5, a push rod 15, a mounting shaft 22, a clamping block 19 and an oil cylinder 25. The bottom frame 3 is arranged at the lower end of the box body 1, and the top cover 4 is arranged at the upper end of the box body 1. Two groups of symmetrically distributed mounting plates 24 are arranged at both ends of the top cover 4. A bearing 30 is embedded and installed inside the mounting plate 24. The mounting shaft 22 is rotatably plugged inside the bearing 30. A clamping block 19 is sleeved at the center of the mounting shaft 22. A clamping tooth 20 is arranged at one end of the clamping block 19. Conical plates 7 are arranged on both sides of the lower end of the box body 1. The outer side of the mounting shaft 22 is sleeved with symmetrically distributed torsion springs 23 connected to the clamping block 19 and the mounting shaft 22 at both ends. The lower end of the cone plate 7 and the upper end of the clamping block 19 are provided with cone surfaces 21 with the same inclination. The outer wall of the box body 1 is sleeved with an insulation layer 2.

[0045] The box body 1 is a turnover box body. When storing or transporting the box body 1, the bottom frame 3 is placed on the top cover 4 at the upper end of the stacked box body 1. The ball 6 is fixed on the top cover 4. The ball 6 slides on the top cover 4 and is elastically supported by a spring 9. When the spring 9 is used, it is guided by the guide rod 8 for longitudinal movement. The ball 6 slides on the top cover 4, which is convenient for adjusting the position of the top cover 4 and reduces the laboriousness of adjusting the box body 1. After the bottom frame 3 corresponds to the top cover 4, it is sleeved on the outer side of the top cover 4.

[0046] At this time, through the weight of the box body 1 itself, the cone plate 7 and the block 19 are docked through the cone surface 21, the cone plate 7 squeezes the block 19, and through the diversion of the cone surface 21, the block 19 rotates outward through the installation shaft 22, and the torsion spring 23 twists when the block 19 rotates. When the cone surfaces 21 are misaligned with each other, after the block 19 loses the squeezing of the cone plate 7, the torsional elastic support of the torsion spring 23 pushes the block 19 to rotate and reset, and is clamped to the upper end of the cone plate 7, the cone plate 7 is clamped and fixed, the stacked box body 1 is effectively fixed, and the fixing parts are automatically docked, no additional installation is required, it is easy to use, the stacked turnover boxes are more stable, and the longitudinal space of the storage point is effectively utilized.

[0047] A pressure plate 5 is arranged inside the bottom frame 3, and a spring 9 connected to the inner wall of the upper end of the bottom frame 3 is arranged on the upper end of the pressure plate 5. Sliding sleeves 14 are embedded and installed at both ends of the bottom frame 3. A push rod 15 is slidably inserted inside the sliding sleeve 14, and a spring 13 with one end connected to the outer wall of the bottom frame 3 is sleeved on the outer side of the push rod 15.

[0048] The inner diameter of the bottom frame 3 is larger than the outer diameter of the top cover 4 . The bottom frame 3 and the top cover 4 are both rectangular, and the outer diameter of the top cover 4 is smaller than the outer diameter of the box body 1 .

[0049] A ball 6 is rotatably mounted inside the lower end of the pressure plate 5 , and an extrusion surface 17 is provided on the outer walls of both ends of one end of the pressure plate 5 . A force-bearing ball 16 is provided at one end of the push rod 15 , and the force-bearing ball 16 is located above the extrusion surface 17 .

[0050] A top ball 11 is arranged at one end of the top rod 15 , a limit ring 12 is sleeved on the outer wall of the top rod 15 , and one end of the spring 13 is connected to the limit ring 12 .

[0051] A pull handle 18 is connected between the blocks 19 , a plurality of through holes 10 are provided inside the pressure plate 5 , and a plurality of guide rods 8 located inside the spring and slidably inserted into the through holes 10 are provided at the lower end of the box body 1 .

[0052] When the stacked boxes 1 need to be taken out, an extrusion force is applied to the upper end of the stacked boxes 1, and the extrusion force acts on the spring 1 9 through the pressure plate 5. The spring 1 9 is forced to contract and squeeze the force-bearing ball 16 through the extrusion surface 17. When the force-bearing ball 16 is squeezed, it drives the push rod 15 to move inside the sliding sleeve 14, and the spring 2 13 is pulled up by the force, driving the push rod 15 to move toward the outside of the bottom frame 3. The top ball 11 moves with the push rod 15, and then squeezes the block 19 outward, so that the block 19 rotates. When the block 19 moves out of the cone plate 7, the stacked boxes 1 are released, and the boxes 1 are effectively taken out. When the bite fixation is released, it can be achieved by only squeezing the box 1, and the removal of the box 1 is time-saving and convenient.

[0053] Rotating shafts 26 are provided at both ends of the installation shaft 22, and an oil cylinder 25 and a plug rod 27 which are slidably connected to each other are sleeved on the outer side of the rotating shaft 26.

[0054] A fixing block 1 28 connected to the mounting plate 24 is disposed at one end of the oil cylinder 25 , and a fixing block 29 connected to the rotating shaft 26 is disposed at one end of the plug rod 27 .

[0055] A sealing ring 31 is embedded in the opening of one end of the oil cylinder 25 , one end of the plug rod 27 is slidably inserted into the sealing ring 31 , and one end of the plug rod 27 is provided with a piston 32 slidably installed in the oil cylinder 25 .

[0056] The piston 32 is spherical, and two sets of one-way valves 33 are relatively distributed inside the piston 32. The oil cylinder 25 and the plug rod 27 are both arc-shaped, and the oil cylinder 25, the plug rod 27 and the sealing ring 31 all take the rotating shaft 26 as the center of the circle.

[0057] When the stacking box 1 is taken out, the block 19 is squeezed by the top ball 11 and rotated outward. The mounting shaft 22 supports the block 19 in rotation. When the block 19 rotates, the shaft 26 is driven to rotate. The shaft 26 drives the plug rod 27 to rotate inside the oil cylinder 25. The piston 32 slides inside the oil cylinder 25 following the plug rod 27. The hydraulic oil inside the oil cylinder 25 passes through the one-way valve 33 to apply resistance to the spherical piston 32, thereby applying a damping effect to the torsion spring 23. The torsion spring 23 is reset smoothly and the reset speed is reduced. When the piston 32 slides in the opposite direction, the hydraulic oil in different directions is effectively passed through the piston 32 through the two sets of one-way valves 33. At the same time, the piston 32 is subjected to resistance by the hydraulic oil in different directions. Because the block 19 is reset and decelerated, effective operation time is provided for taking out the stacking box 1, and the stacking and removal of the box 1 are more convenient.

[0058] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A logistic turnover box convenient for stacking, comprising a box body (1), a bottom frame (3), a pressing plate (5), a top rod (15), a mounting shaft (22), a clamping block (19) and an oil cylinder (25), characterized in that: The lower end of the box body (1) is provided with a bottom frame (3), the upper end of the box body (1) is provided with a top cover (4), both ends of the top cover (4) are provided with two groups of symmetrically distributed mounting plates (24), a bearing (30) is embedded and installed inside the mounting plate (24), a mounting shaft (22) is rotatably plugged inside the bearing (30), a clamping block (19) is sleeved at the center of the mounting shaft (22), one end of the clamping block (19) is provided with a clamping tooth (20), cone plates (7) are provided on both sides of the lower end of the box body (1), and the A torsion spring (23) symmetrically distributed and connected to the clamping block (19) and the mounting shaft (22) at both ends is sleeved on the outside of the mounting shaft (22); a pressure plate (5) is arranged inside the bottom frame (3); a spring (9) connected to the inner wall of the upper end of the bottom frame (3) is arranged on the upper end of the pressure plate (5); sliding sleeves (14) are embedded and installed at both ends of the bottom frame (3); a push rod (15) is slidably inserted inside the sliding sleeve (14); a spring (13) with one end connected to the outer wall of the bottom frame (3) is sleeved on the outside of the push rod (15).

2. A logistic turnover box convenient for stacking according to claim 1, characterized in that: The lower end of the cone plate (7) and the upper end of the clamping block (19) are both provided with cone surfaces (21) with the same slope, and the outer wall of the box body (1) is sleeved with a heat-insulating layer (2).

3. A logistic turnover box convenient for stacking according to claim 1, characterized in that: The inner diameter of the bottom frame (3) is greater than the outer diameter of the top cover (4); the bottom frame (3) and the top cover (4) are both rectangular; and the outer diameter of the top cover (4) is smaller than the outer diameter of the box body (1).

4. A logistic turnover box convenient for stacking according to claim 1, characterized in that: A ball (6) is rotatably mounted inside the lower end of the pressure plate (5), and an extrusion surface (17) is provided on the outer walls of both ends of one end of the pressure plate (5). A force-bearing ball (16) is provided at one end of the push rod (15), and the force-bearing ball (16) is located above the extrusion surface (17).

5. The stackable logistics turnover box according to claim 1, characterized in that: A top ball (11) is provided at one end of the top rod (15), a limiting ring (12) is sleeved on the outer wall of the top rod (15), and one end of the spring (13) is connected to the limiting ring (12).

6. A logistic turnover box convenient for stacking according to claim 1, characterized in that: A pull handle (18) is connected between the blocks (19), a plurality of through holes (10) are provided inside the pressure plate (5), and a plurality of guide rods (8) located inside the spring and slidably inserted into the through holes (10) are provided at the lower end of the box body (1).

7. A logistic turnover box convenient for stacking according to claim 1, characterized in that: Both ends of the installation shaft (22) are provided with rotating shafts (26), and the outer side of the rotating shaft (26) is sleeved with an oil cylinder (25) and a plug rod (27) which are slidably plugged into each other.

8. A logistic turnover box convenient for stacking according to claim 7, characterized in that: One end of the oil cylinder (25) is provided with a fixing block 1 (28) connected to the mounting plate (24), and one end of the plug rod (27) is provided with a fixing block 2 (29) connected to the rotating shaft (26).

9. A logistic turnover box convenient for stacking according to claim 7, characterized in that: A sealing ring (31) is embedded in the opening of one end of the oil cylinder (25), one end of the plug rod (27) is slidably inserted into the sealing ring (31), and one end of the plug rod (27) is provided with a piston (32) slidably installed in the oil cylinder (25).

10. A logistic turnover box convenient for stacking according to claim 9, characterized in that: The piston (32) is spherical, and two sets of one-way valves (33) are arranged inside the piston (32) and are relatively distributed. The oil cylinder (25) and the plug rod (27) are both arc-shaped, and the oil cylinder (25), the plug rod (27) and the sealing ring (31) are all centered on the rotating shaft (26).

Images