Plastic storage device

Abstract

The invention discloses a plastic storage device which is characterized in that a rotating cover plate for sealing is arranged at the top of a barrel, an annular convex edge is arranged at the bottom of the barrel, a limiting concave cavity is formed in the upper end face of the rotating cover plate, and a limiting assembly for limiting the annular convex edge and preventing sideslip through the dead weight of the barrel is arranged in the limiting concave cavity; the limiting assembly comprises a limiting abutting block, a limiting ring and an anti-skid mechanism, the limiting abutting block is embedded in the inner wall of the limiting concave cavity, a loop line cavity for driving the limiting abutting block to horizontally move is formed in the bottom of the limiting concave cavity, the limiting ring is slidably connected to the interior of the loop line cavity, and the anti-skid mechanism is fixedly connected to the inner wall of the limiting ring. By means of the large-weight storage device, the potential safety hazard of the large-weight storage device during carrying can be effectively reduced, and meanwhile the simplification and use convenience of the device are improved.

Description

Technical Field

[0001] The invention relates to the technical field of storage equipment, and in particular to a plastic storage device. Background Art

[0002] Plastic barrels are mostly used for the storage and transportation of various liquids. They have good characteristics for the packaging of special dangerous goods. They are not easy to break, rust-free, light, and have excellent oil and strong corrosion resistance. They are mostly used for the packaging of dangerous goods that require heat preservation, moisture resistance, pressure resistance, and corrosion resistance. Plastic barrels are mostly made of polyethylene, polypropylene, polyester and other plastics through blow molding, injection molding, suction molding, and rotational molding. They are mostly used to hold liquids and solid items in the chemical, pesticide, pharmaceutical, food, hardware and electronics, and electromechanical industries.

[0003] Chinese patent publication number CN116280687B discloses a chemical barrel that is easy to stack and has a firm structure, which includes a barrel body, a barrel cover and a clamp, a first clamp ring is convexly provided on the outer periphery of the top of the barrel body; a sleeve groove is provided around the bottom surface of the barrel cover to seal with the top edge of the barrel mouth, and a second clamp ring is provided around the barrel cover to seal against the first clamp ring; the clamp includes a first arc-shaped clamp ring and a second arc-shaped clamp ring, a locking swing hand is hinged at the other end of the first arc-shaped clamp ring, a locking arm is hinged at the other end of the second arc-shaped clamp ring, and the other end of the locking arm is hinged between the two ends of the locking swing hand, and a locking structure for locking and fixing the locking swing hand is provided between the swing end of the locking swing hand and the first arc-shaped clamp ring, and the first arc-shaped clamp ring and the second arc-shaped clamp ring are tightly held on the outside of the first clamp ring and the second clamp ring. A multi-level seal is formed between the barrel cover and the barrel body, and a locking structure is provided to lock and fix the rotation of the locking swing hand, effectively avoiding the phenomenon of loosening of the clamp, so as to improve the sealing assembly effect of the chemical barrel.

[0004] Existing storage devices are mostly limited by protrusions and grooves when stacking, but this structure can easily lead to difficulty in separation during transportation or cause the cylinder to slide sideways due to the small contact surface when tilting, which is inconvenient to use and has certain safety hazards.

[0005] Therefore, it is necessary to provide a plastic storage device to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a plastic storage device to solve the above technical problems.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plastic storage device, comprising a cylinder, a rotating cover for sealing is provided on the top of the cylinder, an annular convex extension is provided on the bottom of the cylinder, a limiting cavity is provided on the upper end surface of the rotating cover, and a limiting component is provided inside the limiting cavity for limiting and preventing the annular convex extension from sliding by the cylinder's own weight.

[0008] Furthermore, the diameter of the annular protrusion is smaller than the bottom of the cylinder, and the diameter of the limiting cavity is slightly larger than the annular protrusion.

[0009] As a further solution of the present invention, the limit assembly includes a limit block, a limit ring and an anti-slip mechanism, the limit block is embedded in the inner wall of the limit cavity, the bottom of the limit cavity is provided with a ring line cavity for driving the limit block to move horizontally, the limit ring is slidably connected to the inside of the ring line cavity, the anti-slip mechanism is fixedly connected to the inner wall of the limit ring, and the anti-slip mechanism protrudes from the surface of the limit cavity.

[0010] Furthermore, the anti-slip mechanism is provided with a plurality of groups, which are distributed in a ring shape inside the limiting cavity, and the width of the limiting ring is greater than the width of the annular protrusion.

[0011] As a further solution of the present invention, an elastic cavity is formed on the inner wall of the position-limiting cavity, the elastic cavity is connected with the loop cavity through a second connecting pipe, and the position-limiting stop block is elastically connected to the inside of the elastic cavity.

[0012] Furthermore, a closed cavity is formed between the limit ring and the ring line cavity, one end of the second connecting tube is connected to the side wall of the ring line cavity, and the end of the second connecting tube away from the ring line cavity is connected to the side of the bottom of the elastic cavity away from the limit stop block, and the space between the limit ring and the ring line cavity is filled with hydraulic medium.

[0013] As a further solution of the present invention, a bevel protrusion is provided at the bottom of the outer end surface of the annular projection, and a notch groove matching the rotation groove is provided on one side of the limit stop block that is in contact with the annular projection.

[0014] As a further solution of the present invention, the limiting ring includes a fixed ring and a rotating ring. The fixed ring is fixedly connected to the anti-slip mechanism, the fixed ring is slidably connected inside the ring wire cavity, the rotating ring is rotationally connected to the fixed ring through a vortex spring, and the outer extension of the fixed ring is fixedly connected with an adjustment ring for controlling the extension of the anti-slip mechanism.

[0015] Furthermore, the surface of the rotating ring is provided with anti-skid protrusions, and the anti-skid protrusions can be multiple groups of longitudinal grids, so as to increase the friction between the annular protrusion and the rotating ring.

[0016] As a further solution of the present invention, a first connecting tube is provided at the bottom of the ring line cavity, one end of the first connecting tube is connected to the bottom of the anti-slip mechanism, the end of the first connecting tube facing away from the anti-slip mechanism is connected to the bottom of the rotating ring, and a staggered conducting groove is provided inside the rotating ring. When the rotating ring rotates to release the limit of the anti-slip mechanism, the two ends of the conducting groove are respectively connected to the second connecting tube and the first connecting tube, and the limit stop block is arranged corresponding to the anti-slip mechanism.

[0017] Furthermore, a sealing gasket is provided at the bottom of the anti-slip mechanism, and the interior of the anti-slip mechanism is hollow.

[0018] As a further solution of the present invention, the anti-slip mechanism includes a positioning column and a telescopic sleeve, the positioning column is fixedly connected to the fixing ring, the telescopic sleeve is slidably sleeved inside the positioning column, the side end surfaces of the positioning column and the telescopic sleeve are provided with rotating grooves that are compatible with the adjustment ring, and the inner wall of the adjustment ring is provided with an arc-shaped groove that is compatible with the outer end surface of the telescopic sleeve.

[0019] Furthermore, the telescopic sleeve can be provided with multiple groups of mutually socketed ones, and the telescopic sleeve and the vortex spring, as well as the telescopic sleeves are limited by limiting grooves and limiting sliders to prevent them from rotating. A connecting cavity is provided inside the telescopic sleeve, and the middle part of the telescopic sleeve is elastically connected to the bottom of the ring cavity through an elastic member.

[0020] When the present invention is in use, after the cylinder is closed by rotating the cover plate, an annular convex extension is provided for easy transportation, and a limiting cavity is provided to improve the stability of stacking. The annular convex extension can be placed inside the limiting cavity so that the storage devices can be stacked on each other, which is convenient for transportation and storage of the devices. A limiting assembly is provided inside the limiting cavity. The limiting assembly limits the annular convex extension by the deadweight of the cylinder, thereby improving the stability of stacking. The limiting assembly can also be used to prevent the side slip caused by the tilt of the rotating cover plate during transportation, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 The present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 3 It is a schematic diagram of the cross-sectional structure of the rotating cover plate of the present invention; Figure 4 It is a schematic diagram of the structure of the limiting ring of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the rotating cover plate of the present invention; Figure 6 The present invention Figure 5 The enlarged structural diagram at B in the middle; Figure 7 It is a schematic diagram of the structure of the present invention in a stacked state; Figure 8 The present invention Figure 7 The enlarged structural diagram at C in the middle; Fig. 9 It is a schematic diagram of the telescopic sleeve structure of the present invention; Fig.10 It is a schematic diagram of the internal structure of the telescopic sleeve of the present invention; Fig.11 It is a schematic diagram of the structure of the present invention in the transport state; Fig.12 The present invention Fig.11 Enlarged structural diagram at D in the middle.

[0023] In the figure: 1. rotating cover plate; 2. limiting assembly; 3. limiting cavity; 4. cylinder; 5. annular protrusion; 6. limiting block; 7. limiting ring; 8. anti-skid mechanism; 9. annular cavity; 10. first connecting pipe; 11. second connecting pipe; 12. elastic cavity; 13. adjusting ring; 14. fixing ring; 15. arc groove; 16. rotating ring; 17. telescopic sleeve; 18. vortex spring; 19. anti-skid protrusion; 20. sealing gasket; 21. positioning column; 22. inclined protrusion; 23. rotating groove; 24. connecting cavity; 25. limiting slide groove. DETAILED DESCRIPTION Embodiment 1

[0024] like Figure 1 As shown, a plastic storage device includes a cylinder 4, a rotating cover plate 1 for sealing is provided on the top of the cylinder 4, an annular convex extension 5 is provided on the bottom of the cylinder 4, a limiting cavity 3 is provided on the upper end surface of the rotating cover plate 1, and a limiting component 2 is provided inside the limiting cavity 3 for limiting and preventing the annular convex extension 5 from sliding by the deadweight of the cylinder 4.

[0025] Furthermore, the diameter of the annular protrusion 5 is smaller than the bottom of the cylinder 4 , and the diameter of the limiting cavity 3 is slightly larger than the annular protrusion 5 .

[0026] When in use, after the cylinder 4 is closed by rotating the cover plate 1, an annular protrusion 5 is provided for easy transportation, and a limiting cavity 3 is provided to improve the stability of stacking. The annular protrusion 5 can be placed inside the limiting cavity 3, so that the storage devices can be stacked on each other, which is convenient for transportation and storage of the devices, and a limiting component 2 is provided inside the limiting cavity 3. The limiting component 2 limits the annular protrusion 5 by the deadweight of the cylinder 4, thereby improving the stability of stacking, and the limiting component 2 can also be used to prevent the rotating cover plate 1 from sliding sideways due to the tilting of the rotating cover plate 1 during transportation, thereby improving the safety of the device. Embodiment 2

[0027] Based on the first embodiment, Figure 1-2As shown, the limit assembly 2 includes a limit stop block 6, a limit ring 7 and an anti-slip mechanism 8. The limit stop block 6 is embedded in the inner wall of the limit cavity 3. The bottom of the limit cavity 3 is provided with a ring line cavity 9 for driving the limit stop block 6 to move horizontally. The limit ring 7 is slidably connected to the inside of the ring line cavity 9. The anti-slip mechanism 8 is fixedly connected to the inner wall of the limit ring 7, and the anti-slip mechanism 8 protrudes from the surface of the limit cavity 3.

[0028] Furthermore, the anti-slip mechanism 8 is provided in multiple groups and distributed in an annular shape inside the limiting cavity 3 , and the width of the limiting ring 7 is greater than the width of the annular protrusion 5 .

[0029] During use, when the storage devices are stacked up and down, the annular protrusion 5 will press the limiting ring 7, so that the limiting ring 7 moves downward inside the annular cavity 9. After moving downward, the annular protrusion 5 will fall into the annular cavity 9 for preliminary limiting. When stacking, the anti-slip mechanism 8 can be distributed in a ring shape on the surface of the limiting cavity 3, which can facilitate the guidance of the position of the annular protrusion 5 during stacking, thereby improving the convenience of using the storage device. When the limiting ring 7 moves downward, it will also drive the limiting stopper 6 to extend horizontally from the inner wall of the limiting cavity 3. The limiting stopper 6 is provided with a plurality of groups symmetrically arranged on the inner wall of the limiting cavity 3. The annular protrusion 5 is fixed and limited inside the annular cavity 9 by the groups of symmetrically extended limiting stoppers 6, thereby preventing the annular protrusion 5 from tilting or moving inside the annular cavity 9.

[0030] like Figure 1-3 and Figure 7-8 As shown, an elastic cavity 12 is formed on the inner wall of the limiting cavity 3 , the elastic cavity 12 is connected with the loop cavity 9 through a second connecting pipe 11 , and the limiting stop block 6 is elastically connected to the inside of the elastic cavity 12 .

[0031] Furthermore, a closed cavity is formed between the limit ring 7 and the ring line cavity 9, one end of the second connecting tube 11 is connected to the side wall of the ring line cavity 9, and the end of the second connecting tube 11 away from the ring line cavity 9 is connected to the side of the bottom of the elastic cavity 12 away from the limit stop block 6, and the space between the limit ring 7 and the ring line cavity 9 is filled with hydraulic medium.

[0032] When in use and stacked, the upper annular extension 5 is pressed against the limit ring 7 under the action of gravity, and the limit ring 7 slides inside the annular cavity 9, thereby pressing the medium inside the annular cavity 9 to the inside of the elastic cavity 12 through the second connecting tube 11, thereby pushing the limit stop block 6 to extend horizontally, and then limiting the annular extension 5 through the limit stop block 6, and the pressing ratio of the limit ring 7 will be much larger than the limit stop block 6, thereby generating a larger horizontal pressure on the limit stop block 6 to push it to limit the annular extension 5, thereby avoiding the upper cylinder 4 from tilting and detaching, etc., which leads to unstable stacking.

[0033] like Figure 1-3 and Figure 7-8As shown, the bottom of the outer end surface of the annular protrusion 5 is provided with an inclined protrusion 22, and the side of the limiting stop block 6 that is in contact with the annular protrusion 5 is provided with a notch groove that matches the rotation groove 23.

[0034] When in use, by providing a bevel protrusion 22 on the side end face of the annular protrusion 5, when the limit stop block 6 is extended to limit the annular protrusion 5, the possibility of the annular protrusion 5 escaping from the vertical direction can be effectively avoided through the bevel protrusion 22 and the groove of the limit stop block 6, and the elastic cavity 12 is connected with the annular cavity 9, so that the abutment between each group of limit stop blocks 6 is the same, so that the two groups of cylinders 4 can automatically become coaxial under the push of the limit stop block 6, thereby improving the stability of the stacking of the cylinders 4.

[0035] like Figure 1-6 As shown, the limiting ring 7 includes a fixed ring 14 and a rotating ring 16. The fixed ring 14 is fixedly connected to the anti-skid mechanism 8. The fixed ring 14 is slidably connected inside the annular cavity 9. The rotating ring 16 is rotatably connected to the fixed ring 14 through a vortex spring 18. The extension of the fixed ring 14 is fixedly connected to an adjusting ring 13 for controlling the extension of the anti-skid mechanism 8.

[0036] Furthermore, the surface of the rotating ring 16 is provided with anti-skid protrusions 19 , and the anti-skid protrusions 19 may be a plurality of groups of longitudinal grids, so as to increase the friction between the annular protrusion 5 and the rotating ring 16 .

[0037] When in use, when the cylinder 4 needs to be transported after being stacked, the upper cylinder 4 is generally tilted at a certain angle to facilitate the workers' transportation and unloading. However, in the conventional design, after the cylinder 4 is tilted, the friction between the annular convex extension 5 and the limiting concave cavity 3 is insufficient to reduce the contact surface, which can easily cause the cylinder 4 to slip sideways, thereby causing safety accidents such as goods falling off. If the annular convex extension 5 is fixed by a groove, the groove is too shallow and the fixing and limiting effect is poor. The groove is too deep, making it difficult for the annular convex extension 5 to be disengaged and inconvenient to use. Therefore, the present invention is provided with an annular cavity 9, which has a shallow depth and a surface area much larger than the annular convex extension 5. While improving the convenience of stacking, it is assisted in fixing by a limiting stop block 6 and an anti-skid mechanism 8. When the cylinder 4 needs to be transported, the upper cylinder 4 is rotated, so that the annular convex extension 5 drives the rotating ring 16 to rotate, and the anti-skid mechanism 8 extends out of the surface of the limiting concave cavity 3 through the adjusting ring 13 on the inner wall of the rotating ring 16. Therefore, when the cylinder 4 is tilted, the anti-skid mechanism 8 can effectively limit and resist the cylinder 4, thereby preventing the cylinder 4 from slipping sideways.

[0038] like Figure 1-12As shown, a first connecting tube 10 is provided at the bottom of the annular cavity 9, one end of the first connecting tube 10 is connected to the bottom of the anti-skid mechanism 8, and the end of the first connecting tube 10 facing away from the anti-skid mechanism 8 is connected to the bottom of the rotating ring 16. A staggered conducting groove is provided inside the rotating ring 16. When the rotating ring 16 rotates to release the limit of the anti-skid mechanism 8, the two ends of the conducting groove are respectively connected to the second connecting tube 11 and the first connecting tube 10, and the limit stop block 6 is correspondingly arranged to the anti-skid mechanism 8.

[0039] Furthermore, a sealing gasket 20 is provided at the bottom of the anti-slip mechanism 8, and the interior of the anti-slip mechanism 8 is hollow.

[0040] During use, when the rotating ring 16 contacts the anti-skid mechanism 8 driven by the annular convex extension 5 to limit the position, the second connecting pipe 11 will be connected with the first connecting pipe 10 through the conducting groove, so that the pressure in the elastic cavity 12 can enter the bottom of the anti-skid mechanism 8 through the first connecting pipe 10 and the second connecting pipe 11, so that the pressure in the elastic cavity 12 is reduced, and the limiting stop block 6 contacts the limiting effect of the annular convex extension 5. At this time, the cylinder 4 can drive the annular convex extension 5 to move and tilt at an angle, and when tilting, it will inevitably press the limiting stop block 6 on the inclined side, so that the liquid in the elastic cavity 12 further flows to the anti-skid mechanism 8. The internal liquid pressure of the anti-skid mechanism 8 is used to drive the anti-skid mechanism 8 to extend, so that when the cylinder 4 is tilted, the bottom of the inclined side correspondingly extends with the anti-skid mechanism 8. After the anti-skid mechanism 8 is extended, it is used to prevent the cylinder 4 from slipping sideways after tilting.

[0041] like Figure 1-12 As shown, the anti-slip mechanism 8 includes a positioning column 21 and a telescopic sleeve 17. The positioning column 21 is fixedly connected to the fixing ring 14. The telescopic sleeve 17 is slidably sleeved inside the positioning column 21. The side end surfaces of the positioning column 21 and the telescopic sleeve 17 are provided with a rotating groove 23 that is compatible with the adjustment ring 13. The inner wall of the adjustment ring 13 is provided with an arc-shaped groove 15 that is compatible with the outer end surface of the telescopic sleeve 17.

[0042] Furthermore, the telescopic sleeve 17 can be provided with a plurality of groups that are mutually socketed, and the telescopic sleeve 17 and the vortex spring 18, as well as the telescopic sleeve 17, are limited by a limiting groove 25 and a limiting slider to prevent them from rotating. A connecting cavity 24 is provided inside the telescopic sleeve 17, and the middle part of the telescopic sleeve 17 is elastically connected to the bottom of the annular cavity 9 through an elastic member.

[0043] When in use, in the initial state, that is, when the rotating ring 16 is not rotating, the adjusting ring 13 rotates to the inside of the rotating groove 23, and the positioning column 21 is fixedly connected to the fixing ring 14, so that the telescopic sleeve 17 is fixed inside the positioning column 21. When the adjusting ring 13 rotates until the arc-shaped groove 15 is in contact with the outer end surface of the telescopic sleeve 17, the first connecting tube 10 is connected with the second connecting tube 11, and the medium enters the inside of the connecting cavity 24 through the elastic cavity 12. A sealing gasket 20 is also provided at the bottom of the positioning column 21 to improve the airtightness of the connecting cavity 24. Under the action of the medium pressure in the connecting cavity 24, the telescopic sleeve 17 is driven from the positioning column 21 to the outside of the connecting cavity 24. The internal extension is used to limit the cylinder 4 to prevent it from sliding sideways, and when the telescopic sleeve 17 is extended, the rotating groove 23 fits with the inner wall of the telescopic sleeve 17 or the inner wall of the anti-slip mechanism 8 to prevent the medium from leaking out. When the upper cylinder 4 is moved away, under the elastic force of the telescopic sleeve 17 and the elastic part inside the elastic cavity 12, the medium inside the connecting cavity 24 and the elastic cavity 12 flows back into the inner part of the annular cavity 9, so that the limiting ring 7 is restored to be flush with the surface of the limiting concave cavity 3, and when the telescopic sleeve 17 is retracted into the positioning column 21, the rotating grooves 23 are aligned with each other. At this time, the adjusting ring 13 can be reversed under the action of the vortex spring 18 and limit the telescopic sleeve 17.

[0044] Working principle: After the cylinder 4 is closed by rotating the cover plate 1, an annular convex extension 5 is provided for easy transportation, and a limiting cavity 3 is provided to improve the stability of stacking. The annular convex extension 5 can be placed inside the limiting cavity 3, so that the storage devices can be stacked on each other, which is convenient for device transportation and storage, and a limiting component 2 is provided inside the limiting cavity 3. The limiting component 2 limits the annular convex extension 5 by the deadweight of the cylinder 4, so as to improve the stability of stacking, and the limiting component 2 can also be used to prevent the side slip caused by the tilt of the rotating cover plate 1 during transportation to improve the safety of the device. When the storage devices are stacked up and down, the annular convex extension 5 will press the limiting ring 7, so that the limiting ring 7 moves downward inside the annular cavity 9. After moving downward, the annular convex extension 5 will fall The annular convex extension 5 is initially limited in the ring line cavity 9, and the anti-slip mechanism 8 can be distributed in an annular shape on the surface of the limiting concave cavity 3 during stacking, which can facilitate the guidance of the position of the annular convex extension 5 during stacking, thereby improving the convenience of using the storage device, and the limiting ring 7 will also drive the limiting stopper 6 to extend horizontally from the inner wall of the limiting concave cavity 3 while moving downward, and the limiting stopper 6 is provided with a plurality of groups of symmetrically arranged on the inner wall of the limiting concave cavity 3, and the annular convex extension 5 is fixedly limited in the ring line cavity 9 by the symmetrically extended limiting stopper 6, so as to prevent the annular convex extension 5 from tilting or moving inside the ring line cavity 9, and when stacking, the upper annular convex extension 5 presses the limiting ring 7 under the action of gravity, and the limiting ring 7 slides inside the ring line cavity 9, thereby pressing the medium inside the ring line cavity 9 to the elastic cavity 12 through the second connecting pipe 11. The inner part of the ring 5 is pushed to extend horizontally, thereby pushing the limit stop block 6 to extend horizontally, and then limiting the annular convex extension 5 through the limit stop block 6, and the pressing ratio of the limit ring 7 will be much greater than that of the limit stop block 6, so that a large horizontal pressure can be generated on the limit stop block 6 to push it to limit the annular convex extension 5, avoiding the upper cylinder 4 from tilting and detaching, etc., which leads to unstable stacking. By providing an inclined protrusion 22 on the side end face of the annular convex extension 5, when the limit stop block 6 extends out to limit the annular convex extension 5, the possibility of the annular convex extension 5 escaping from the vertical direction can be effectively avoided through the inclined protrusion 22 and the groove of the limit stop block 6, and the elastic cavity 12 is connected with the ring line cavity 9, so that the abutment between each group of limit stop blocks 6 is the same, so that the two groups of cylinders 4 can automatically synchronize under the push of the limit stop block 6. The invention further provides a ring line cavity 9, which has a shallow depth and a surface area much larger than that of the annular convex extension 5, so as to improve the convenience of stacking. At the same time, the limiting stop block 6 and the anti-skid mechanism 8 are used to assist in fixing. When the cylinder 4 needs to be transported, the upper cylinder 4 is generally tilted at a certain angle to facilitate the workers' handling and unloading. However, in the conventional design, after the cylinder 4 is tilted, the friction between the annular convex extension 5 and the limiting concave cavity 3 is reduced and insufficient friction is easily caused to cause the cylinder 4 to slip sideways, thereby causing safety accidents such as the goods falling off. If the annular convex extension 5 is fixed by a groove, the groove is too shallow and the limiting effect is not good. If the groove is too deep, the annular convex extension 5 is difficult to detach and is inconvenient to use.Thus, the annular convex extension 5 drives the rotating ring 16 to rotate, and the anti-skid mechanism 8 extends out of the surface of the limiting concave cavity 3 through the adjusting ring 13 on the inner wall of the rotating ring 16, so that the anti-skid mechanism 8 can effectively limit and resist the cylinder 4 when the cylinder 4 is tilted, thereby preventing the cylinder 4 from sliding sideways. When the rotating ring 16 contacts the anti-skid mechanism 8 driven by the annular convex extension 5, the second connecting pipe 11 will be connected with the first connecting pipe 10 through the conducting groove, so that the pressure in the elastic cavity 12 can enter the bottom of the anti-skid mechanism 8 through the first connecting pipe 10 and the second connecting pipe 11, so that the elastic cavity 12 can be adjusted to the bottom of the anti-skid mechanism 8 through the first connecting pipe 10 and the second connecting pipe 11. The pressure in the cavity 12 is reduced, and the limiting stopper 6 contacts the limiting effect of the annular convex extension 5. At this time, the cylinder 4 can drive the annular convex extension 5 to move and tilt, and when tilting, it will inevitably press the limiting stopper 6 on the tilted side, so that the liquid in the elastic cavity 12 further flows to the anti-skid mechanism 8. The internal liquid pressure of the anti-skid mechanism 8 is used to drive the anti-skid mechanism 8 to extend, so that when the cylinder 4 is tilted, the bottom of the tilted side correspondingly extends with the anti-skid mechanism 8. After the anti-skid mechanism 8 is extended, it is used to prevent the cylinder 4 from sliding sideways after tilting. In the initial state, that is, when the rotating ring 16 is not rotated, the adjusting ring 1 3 is rotated to the inside of the rotating groove 23, and the positioning column 21 is fixedly connected with the fixing ring 14, so that the telescopic sleeve 17 is fixed inside the positioning column 21. When the adjusting ring 13 is rotated until the arc-shaped groove 15 is in contact with the outer end surface of the telescopic sleeve 17, the first connecting pipe 10 is connected with the second connecting pipe 11, and the medium enters the inside of the connecting cavity 24 through the elastic cavity 12. A sealing gasket 20 is also provided at the bottom of the positioning column 21 to improve the airtightness of the connecting cavity 24. Under the action of the medium pressure in the connecting cavity 24, the telescopic sleeve 17 is driven to extend from the inside of the positioning column 21 to limit the cylinder 4. The position is prevented from sliding sideways, and when the telescopic sleeve 17 is extended, the rotating groove 23 is in contact with the inner wall of the telescopic sleeve 17 or the inner wall of the anti-slip mechanism 8 to prevent the medium from leaking out. When the upper cylinder 4 is moved away, under the elastic force of the telescopic sleeve 17 and the elastic member inside the elastic cavity 12, the medium inside the connecting cavity 24 and the elastic cavity 12 flows back into the inner part of the loop cavity 9, so that the limiting ring 7 is restored to be flush with the surface of the limiting concave cavity 3, and when the telescopic sleeve 17 is retracted into the positioning column 21, the rotating grooves 23 are aligned with each other. At this time, the adjusting ring 13 can be reversed under the action of the vortex spring 18 and limit the telescopic sleeve 17.

Claims

1. A plastic storage device, comprising a cylinder, characterized in that: A rotating cover plate for sealing is provided on the top of the cylinder, an annular convex extension is provided on the bottom of the cylinder, a limiting cavity is provided on the upper end surface of the rotating cover plate, and a limiting component is provided inside the limiting cavity for limiting and preventing the annular convex extension from sliding sideways by the deadweight of the cylinder.

2. A plastic storage device according to claim 1, characterized in that: The limiting assembly includes a limiting block, a limiting ring and an anti-slip mechanism. The limiting block is embedded in the inner wall of the limiting cavity. A ring line cavity for driving the limiting block to move horizontally is opened at the bottom of the limiting cavity. The limiting ring is slidably connected to the inside of the ring line cavity. The anti-slip mechanism is fixedly connected to the inner wall of the limiting ring, and the anti-slip mechanism protrudes from the surface of the limiting cavity.

3. A plastic storage device according to claim 2, characterized in that: An elastic cavity is formed on the inner wall of the position-limiting cavity. The elastic cavity is connected with the loop cavity through a second connecting pipe. The position-limiting stopper is elastically connected to the inside of the elastic cavity.

4. A plastic storage device according to claim 3, characterized in that: The bottom of the outer end surface of the annular protrusion is provided with an inclined protrusion, and the side of the limiting stop block that is in contact with the annular protrusion is provided with a notch groove that matches the rotation groove.

5. A plastic storage device according to claim 1, characterized in that: The limiting ring includes a fixed ring and a rotating ring. The fixed ring is fixedly connected to the anti-slip mechanism, the fixed ring is slidably connected inside the ring wire cavity, the rotating ring is rotationally connected to the fixed ring through a vortex spring, and the outer extension of the fixed ring is fixedly connected to an adjustment ring for controlling the extension of the anti-slip mechanism.

6. A plastic storage device according to claim 5, characterized in that: A first connecting tube is provided at the bottom of the ring line cavity, one end of the first connecting tube is connected to the bottom of the anti-slip mechanism, and the end of the first connecting tube facing away from the anti-slip mechanism is connected to the bottom of the rotating ring. A staggered conducting groove is provided inside the rotating ring. When the rotating ring rotates to release the limit of the anti-slip mechanism, the two ends of the conducting groove are respectively connected to the second connecting tube and the first connecting tube, and the limit stop block is arranged corresponding to the anti-slip mechanism.

7. A plastic storage device according to claim 6, characterized in that: The anti-slip mechanism comprises a positioning column and a telescopic sleeve, wherein the positioning column is fixedly connected to a fixing ring, and the telescopic sleeve is slidably sleeved inside the positioning column.

8. A plastic storage device according to claim 7, characterized in that: The positioning column and the side end surface of the telescopic sleeve are provided with a rotation groove matched with the adjustment ring, and the inner wall of the adjustment ring is provided with an arc-shaped clamping groove matched with the outer end surface of the telescopic sleeve.

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