Anti-fall container cover and container

Abstract

The present invention discloses an anti-drop container cover, comprising a cover body, a locking mechanism for preventing the cover body from falling from the container mouth, and a driving mechanism, wherein the locking mechanism comprises at least two locking parts, the locking parts are located at the edge of the cover body; when the cover body is closed on the container, the locking parts are clamped on the bottom side of the container mouth; the driving mechanism is used to drive at least one locking part to move toward the center of the cover body or away from the center of the cover body, so that the locking part leaves the bottom side of the container mouth or reaches the bottom side of the container mouth. The container cover of the present invention is firmly connected to the container mouth, so as to prevent the container cover from slipping and breaking from the container mouth.

Description

Technical Field

[0001] The invention relates to a container, in particular to an anti-falling container cover and a container. Background Art

[0002] A container refers to a device for containing materials. A general container includes a container body, a container lid, and a container spout for pouring out materials. For example, a teapot is a common container. Teapots are often used in family life or offices. Existing teapots are generally made of porcelain. The connection between the teapot lid and the teapot body is not tight. When serving tea to guests, the teapot lid often falls off and breaks because the teapot body is tilted at a large angle, causing inconvenience to people's lives.

[0003] In order to solve the above problems, the invention patent with the authorization announcement number CN 205267691 U discloses a new type of teapot, including a pot body, a pot cover, and a pot handle and a pot spout arranged on the pot body, characterized in that a rectangular groove is opened on the edge of the pot mouth of the pot body, and a vertical downward stopper is arranged on one side of the edge of the rectangular groove along the annular direction of the pot mouth; a rectangular block is arranged on the innermost edge of the pot cover; and a plastic handle is arranged on the inner side of the pot handle. When in use, when the teapot lid is covered and the pot cover is twisted so that the rectangular block is staggered with the rectangular groove, the rectangular block is stuck at the edge of the pot body, and the pot cover will not fall off; when the pot cover is taken out, the pot cover is twisted so that the rectangular block reaches the position of the rectangular groove, and then the pot cover is taken out. However, the above teapot still has the following problems: a rectangular block is arranged on one side of the teapot cover, so that only one side of the pot cover is clamped on the pot mouth, while the other side is not clamped, and when the tea is tilted, the pot cover still has the risk of falling off the pot mouth. Summary of the invention

[0004] The object of the present invention is to overcome the deficiencies of the prior art and provide an anti-drop container cover which is firmly connected to a container mouth, thereby preventing the container cover from slipping off the container mouth and breaking.

[0005] Another object of the present invention is to provide a container comprising the above-mentioned anti-fall container cover.

[0006] The technical solution of the present invention to solve the above technical problems is:

[0007] A drop-proof container cover comprises a cover body, a locking mechanism for preventing the cover body from falling from a container mouth, and a driving mechanism, wherein the locking mechanism comprises at least two locking parts, and the locking parts are located at the edges of the cover body; when the cover body is closed on the container, the locking parts are clamped on the bottom side of the container mouth; the driving mechanism is used to drive at least one locking part to move toward the center of the cover body or away from the center of the cover body, so that the locking part leaves the bottom side of the container mouth or reaches the bottom side of the container mouth.

[0008] The working principle of the above-mentioned anti-drop container cover is:

[0009] The container cover is used to cover the container mouth. The process of closing the container cover on the container mouth is: first, the driving mechanism is operated to make a locking part or multiple locking parts move toward the center of the cover body; when controlling a locking part to move toward the center of the cover body, the container cover is tilted so that the locking part that does not move extends downward into the container mouth and reaches the bottom side of the container mouth; then the side of the container cover located at the moving locking part is put into the container mouth; at this time, the driving mechanism is operated so that the moving locking part moves in a direction away from the center of the cover body and reaches the bottom side of the container mouth, and finally the outer side of the container cover is clamped on the container mouth by at least two locking parts, and the tilted container is closed. When materials are poured out, since the outer side of the container cover is clamped on the container mouth, the container cover is prevented from falling off the container and falling and breaking. When controlling the multiple locking parts to move toward the center of the cover body, the driving mechanism is operated to control the outer ends of the locking parts to reach a position inside the outer wall of the cover body, and then the container cover is closed on the container mouth. At this time, the driving mechanism is operated to make the multiple locking parts move away from the center of the cover body and reach the bottom side of the container mouth, and finally the outer side of the container cover is clamped on the container mouth by at least two locking parts. Similarly, when the container is tilted to pour materials, since the outer side of the container cover is clamped on the container mouth, the container cover is prevented from slipping off the container mouth and falling.

[0010] In a preferred embodiment of the present invention, the cover body comprises a top cover for covering the container opening and a cover core for matching with the inner diameter of the container opening, and the cover core is a hollow cylindrical structure.

[0011] In a preferred embodiment of the present invention, there are two locking parts, one of which is a fixed locking part and the other is a movable locking part, wherein the fixed locking part includes a fixed pin, one end of which is installed on the outer wall of the cover core, and the other end extends outward along the diameter direction; the movable locking part includes a movable buckle, which is arranged opposite to the fixed pin, and when the container cover is closed, the fixed pin and the movable buckle are both clamped on the bottom side of the container mouth.

[0012] Preferably, the movable buckle is a sliding buckle, which is slidably connected to a sliding buckle seat, which is arranged at the bottom of the top cover, and the sliding buckle seat is provided with a sliding buckle hole for accommodating the sliding buckle, and the axis of the sliding buckle hole is arranged along the diameter direction of the cover core; the driving mechanism is a sliding buckle driving mechanism for driving the sliding buckle to move outward or inward along the direction of the diameter of the cover core, and the sliding buckle driving mechanism includes a sliding driving rod and an avoidance groove arranged on the top cover, one end of the sliding driving rod is connected to the sliding buckle, and the other end extends upward into the avoidance groove and exceeds the cover surface of the top cover.

[0013] Preferably, the movable buckle is a swing buckle, and the driving mechanism is a swing driving mechanism for driving the swing buckle to swing outward or inward, and the swing driving mechanism includes a swing driving rod, a torsion spring, a torsion spring seat arranged at the bottom of the top cover, and an avoidance hole arranged on the top cover for avoiding the swing driving rod; one end of the swing driving rod is connected to the swing buckle, and the other end extends upward into the avoidance hole and exceeds the cover surface of the top cover; one end of the torsion spring is fastened to the swing driving buckle, and the other end is fastened to the torsion spring seat, and under normal conditions, the torsion force of the torsion spring makes the outer end of the swing buckle be located outside the outer wall of the cover core; an avoidance position is provided on the cover core corresponding to the swing range of the swing buckle.

[0014] Preferably, a driving part is provided at the upper end of the swing driving rod, and a flat position for convenient rotation operation is provided on the driving part.

[0015] The cam is configured to move the sliding rod in a direction of circumferential direction, the sliding rod being movably connected to the rod seat, the rod seat being arranged at the bottom of the top cover, the rod seat being provided with a rod hole for accommodating the sliding rod, the axial direction of the rod hole being arranged along the diameter direction of the cover core; the driving mechanism is a sliding rod driving mechanism for driving the sliding rod to move outward or inward along the axial direction of the rod hole, the sliding rod driving mechanism comprising a driving arm for driving the sliding rod to move inward and a return spring for providing an outward force for the sliding rod, the driving arm comprising a connecting plate, a driving plate arranged at the bottom of the connecting plate and a driving handle, the inner side of the driving plate is provided with a driving inclined surface, and the driving inclined surface is inclined outward from top to bottom; one end of the driving handle is arranged on the connecting plate, and the other end extends upward and passes through the container cover handle located at the center position of the top cover; the sliding rod is provided with a sliding groove for matching the driving plate, the inner end of the sliding groove is pressed against the driving inclined surface; one end of the return spring is pressed against the inner end surface of the sliding rod, and the other end is pressed against the inner wall of the cover core.

[0016] In a preferred embodiment of the present invention, there are two locking parts, both of which are movable locking parts, and the movable locking parts include a sliding pin, and the sliding pin is slidably connected to a pin seat, and the pin seat is arranged at the bottom of the top cover, and the pin seat is provided with a pin hole for accommodating the sliding pin, and the axial direction of the pin hole is arranged along the diameter direction of the cover core; the driving mechanism is a sliding pin driving mechanism for driving the two sliding pins to move outward or inward along the axial direction of the pin hole, and the sliding pin driving mechanism includes a driving claw for driving the two sliding pins to move inward and a driving claw for giving the two sliding pins a driving force. The sliding pin provides a thrust spring for an outward force, and the driving claw includes a connecting plate, two driving members arranged on both sides of the bottom of the connecting plate, and a driving handle. The inner sides of the two driving members are provided with driving inclined surfaces, and the two driving inclined surfaces are inclined outward from top to bottom; one end of the driving handle is arranged on the connecting plate, and the other end extends upward and passes through the container cover handle located at the center of the top cover; the sliding pin is provided with a driving groove for matching the driving member, and the inner end of the driving groove is pressed against the driving inclined surface; the two ends of the thrust spring are respectively pressed against the inner end surfaces of the two sliding pins.

[0017] Preferably, the bottom of the outer end of the sliding pin is provided with a chamfered surface for facilitating the lid core to enter the container opening.

[0018] In a preferred embodiment of the present invention, the container cover is provided with a leak-proof structure for preventing the material in the container from flowing out of the container mouth, the leak-proof structure comprises a rubber ring and an annular groove provided on the cover core for accommodating the rubber ring, and the position of the annular groove corresponds to the position of the container mouth.

[0019] A container comprises a container body, a container opening arranged above the container body, a container handle arranged on the container body, a container mouth for discharging materials and the container cover.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The anti-drop container cover of the present invention has locking parts on both sides of the cover body. When the container cover is closed on the container mouth, the locking parts on both sides of the cover body are clamped on the bottom side of the container mouth, so that the force of the container cover on the container mouth is balanced. When the container is tilted to pour material water, the connection between the container cover and the container is stable, which can prevent the container cover from slipping and breaking on the container mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1-Figure 3 It is a schematic diagram of a first embodiment of the anti-drop container cover of the present invention, wherein: Figure 1 The main sectional view, Figure 2 This is a three-dimensional image of the container lid turned upside down. Figure 3 A three-dimensional diagram of the container.

[0023] Figure 4-Figure 6 It is a schematic diagram of a second embodiment of the anti-drop container cover of the present invention, wherein: Figure 4 The main sectional view, Figure 5 This is a three-dimensional image of the container lid turned upside down. Figure 6 A three-dimensional diagram of the container.

[0024] Figure 7-Figure 9 It is a schematic diagram of a third embodiment of the anti-drop container cover of the present invention, wherein: Figure 7 The main sectional view, Figure 8 This is a three-dimensional image of the container lid turned upside down. Fig. 9 A three-dimensional diagram of the container.

[0025] Figure 10-12 Schematic diagram of a fourth embodiment of the anti-drop container cover of the present invention, wherein: Fig.10 The main sectional view, Fig.11 This is a three-dimensional image of the container lid turned upside down. Fig.12 A three-dimensional diagram of the container. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0027] See also Figure 1-Figure 12 A drop-proof container cover of the present invention comprises a cover body, a locking mechanism for preventing the cover body from falling from a container mouth, and a driving mechanism, wherein the locking mechanism comprises two locking parts, and the two locking parts are located on both sides of the cover body; when the cover body is closed on the container, the two locking parts are clamped on the bottom side of the container mouth; the driving mechanism is used to drive one locking part or the two locking parts to move toward the center of the cover body or away from the center of the cover body, thereby leaving the bottom side of the container mouth or reaching the bottom side of the container mouth.

[0028] See also Figure 1-Figure 12 The cover body includes a top cover 1 for covering the container mouth and a cover core 2 for matching the inner diameter of the container mouth, and the cover core 2 is a hollow cylindrical structure. The cover body with the above structure is provided, and the outer diameter of the cover core 2 matches the inner diameter of the container mouth. In this way, when the container cover is closed on the container mouth, the top cover 1 covers the container mouth on the top of the container mouth, and the cover core 2 matches the container mouth tightly, so that the container cover will not be loose and collide with the container mouth. In addition, the cover core 2 is set as a hollow cylindrical structure, which not only saves materials, but also reduces the weight of the container cover.

[0029] See also Figure 1-Figure 9There are two locking parts, one of which is a fixed locking part and the other is a movable locking part, wherein the fixed locking part includes a fixed pin 3, one end of which is mounted on the outer wall of the cover core 2, and the other end extends outward along the diameter direction; the movable locking part includes a movable buckle, which is arranged opposite to the fixed pin 3. When the container cover is closed, the fixed pin 3 and the movable buckle are both clamped on the bottom side of the container mouth. The locking part of the above structure is arranged, and the fixed pin 3 and the movable buckle are respectively located on both sides of the cover core 2. When clamped on the bottom side of the container mouth, the container cover can be firmly connected to the container mouth to prevent the container cover from slipping and breaking.

[0030] See also Figure 1-Figure 3 The movable buckle is a sliding buckle 4, and the sliding buckle 4 is slidably connected to the sliding buckle seat 5. The sliding buckle seat 5 is arranged at the bottom of the top cover 1, and a sliding buckle hole for accommodating the sliding buckle 4 is provided on the sliding buckle seat 5, and the axis of the sliding buckle hole is arranged along the diameter direction of the cover core 2; the driving mechanism is a sliding buckle 4 driving mechanism for driving the sliding buckle 4 to move outward or inward along the diameter direction of the cover core 2, and the sliding buckle 4 driving mechanism includes a sliding driving rod 6 and an avoidance groove arranged on the top cover 1, one end of the sliding driving rod 6 is connected to the sliding buckle 4, and the other end extends upward and exceeds the cover surface of the top cover 1. The sliding buckle 4 and the driving mechanism of the sliding buckle 4 of the above structure are provided, and the lower end of the driving rod is connected to the sliding buckle 4. When the sliding driving rod 6 is pushed inward, the sliding buckle 4 slides toward the center of the cover core 2, so as to facilitate closing the container cover on the container mouth or removing the container cover from the container mouth; when closing the container cover on the container mouth, the sliding driving rod 6 is pushed outward, so that the sliding buckle 4 slides away from the center of the cover core 2, thereby clamping on the bottom side of the container mouth and locking the container cover to the container mouth. In this embodiment, multiple movable locking parts can be provided, so that multiple sliding buckles 4 are located on the outside of the cover core 2, so that the container cover is more stable and reliable under the locking action of multiple sliding buckles 4.

[0031] See also Figure 4-Figure 5The movable buckle is a swing buckle 7, and the driving mechanism is a swing driving mechanism for driving the swing buckle 7 to swing outward or inward. The swing driving mechanism includes a swing driving rod 8, a torsion spring 9, a torsion spring seat arranged at the bottom of the top cover 1, and an avoidance hole arranged on the top cover 1 for avoiding the swing driving rod 8; one end of the swing driving rod 8 is connected to the swing buckle 7, and the other end extends upward and exceeds the cover surface of the top cover 1; one end of the torsion spring 9 is fastened to the swing driving buckle, and the other end is fastened to the torsion spring seat. Under normal conditions, the torsion force of the torsion spring 9 makes the outer end of the swing buckle 7 located outside the outer wall of the cover core 2; an avoidance position is provided on the cover core 2 corresponding to the swing range of the swing buckle 7. The swing buckle 7 and the swing buckle 7 driving mechanism are provided, the lower end of the swing driving rod 8 is connected to the swing buckle 7, the swing driving rod 8 is operated by hand, when the swing driving rod 8 is turned inward, the swing buckle 7 swings toward the center direction of the cover core 2, when the outer end of the swing buckle 7 reaches the inner side of the outer wall of the cover core 2, the swing buckle 7 is no longer clamped on the bottom side of the container mouth, so that it is convenient to close the container cover on the container mouth or take the container cover off the container mouth. In this embodiment, multiple movable locking parts can be provided, so that multiple swing buckles 7 are located on the outer side of the cover core 2, so that the container cover is more stable and reliable under the locking action of multiple swing buckles 7.

[0032] See also Figure 4-Figure 6 The upper end of the swing driving rod 8 is provided with a driving part, and the driving part is provided with a flat position for convenient rotation operation. When the swing driving rod 8 needs to be rotated, the flat position can be pinched with fingers to enhance the friction between the driving part and the fingers, thereby facilitating the rotation operation.

[0033] See also Figure 7-Figure 9The movable buckle is a sliding rod 17, and the sliding rod 17 is slidably connected to a rod seat 21. The rod seat 21 is arranged at the bottom of the top cover. The rod seat 21 is provided with a rod hole for accommodating the sliding rod 17, and the axial direction of the rod hole is arranged along the diameter direction of the cover core; the driving mechanism is a sliding rod 17 driving mechanism for driving the sliding rod 17 to move outward or inward along the axial direction of the rod hole. The sliding rod 17 driving mechanism includes a driving arm for driving the sliding rod 17 to move inward and a reset spring 20 for providing an outward force to the sliding rod 17, and the driving arm includes a connecting plate 22. A driving plate 18 and a driving handle 19 are arranged at the bottom of the connecting plate 22. A driving inclined surface 18-1 is arranged on the inner side of the driving plate 18, and the driving inclined surface 18-1 is inclined outward from top to bottom; one end of the driving handle 19 is arranged on the connecting plate 22, and the other end extends upward and passes through the container cover handle located at the center of the top cover 1; a sliding groove 17-1 for matching the driving plate 18 is provided on the sliding rod 17, and the inner end of the sliding groove 17-1 is pressed against the driving inclined surface 18-1; one end of the reset spring 20 is pressed against the inner end surface of the sliding rod 17, and the other end is pressed against the inner wall of the cover core. The above-mentioned sliding rod 17 driving mechanism is set. When the container cover is closed on the container mouth, under the thrust of the return spring 20, the sliding rod 17 moves outward and is clamped on the bottom side of the container mouth. In this way, the sliding rod 17 and the fixing pin 3 are clamped on the bottom side of the container mouth and will not loosen; in the process of holding the container cover, when the driving handle 19 is pressed downward, the driving plate 18 follows and moves downward. Since the driving inclined surface 18-1 is pressed against the inner end surface of the slide groove 17-1, and the driving inclined surface 18-1 is inclined from top to bottom and outward, when the driving plate 18 moves downward and drives the driving inclined surface 18-1 to move downward, the driving inclined surface 18-1 generates a force on the sliding rod 17 toward the center direction of the cover core 2, thereby making the sliding rod 17 move toward the center direction of the cover core 2, until the outer end of the sliding rod 17 reaches a position inside the outer wall of the cover core 2, thereby facilitating the closing of the container cover on the container mouth or removing the container cover from the container mouth. In this embodiment, multiple movable locking parts can be provided, so that multiple sliding rods 17 are located outside the cover core 2. In this way, the container cover is more stable and reliable under the locking action of the multiple sliding rods 17.

[0034] See also Figure 10-12The two locking parts are both movable locking parts, and the movable locking parts include a sliding pin 10, and the sliding pin 10 is slidably connected to a pin seat 11, and the pin seat 11 is arranged at the bottom of the top cover 1, and a pin hole for accommodating the sliding pin 10 is provided on the pin seat 11, and the axial direction of the pin hole is arranged along the diameter direction of the cover core 2; the driving mechanism is a sliding pin 10 driving mechanism for driving the two sliding pins 10 to move outward or inward along the axial direction of the pin hole, and the sliding pin 10 driving mechanism includes a driving claw for driving the two sliding pins 10 to move inward and a thrust spring 15 for providing an outward force to the two sliding pins 10, The driving claw includes a connecting plate 12, two driving members 13 arranged on both sides of the bottom of the connecting plate 12, and a driving handle 14. The inner sides of the two driving members 13 are provided with driving inclined surfaces 13-1, and the two driving inclined surfaces 13-1 are inclined outward from top to bottom; one end of the driving handle 14 is arranged on the connecting plate 12, and the other end extends upward and passes through the container cover handle located at the center of the top cover 1; the sliding pin 10 is provided with a driving groove 10-1 for matching the driving member 13, and the inner end of the driving groove 10-1 is pressed against the driving inclined surface 13-1; the two ends of the thrust spring 15 are respectively pressed against the inner end surfaces of the two sliding pins 10. The above-mentioned sliding pin 10 and sliding pin 10 driving structure are provided. When the container cover is closed on the container mouth, under the thrust of the thrust spring 15, the two sliding pins 10 move outward, thereby moving outward on both sides of the cover core 2 respectively, so as to be clamped on the bottom side of the container mouth, so that the container cover is locked on the container mouth; in the process of holding the container cover, when the driving handle 14 is pressed downward, the driving member 13 follows and moves downward. Since the driving inclined surface 13-1 is pressed against the inner end surface of the driving groove 10-1, and the driving inclined surface 13-1 is inclined from top to bottom and outward, when the driving member 13 moves downward and drives the driving inclined surface 13-1 to move downward, the driving inclined surface 13-1 generates a force on the sliding pin 10 toward the center direction of the cover core 2, thereby causing the two sliding pins 10 to move toward the center direction of the cover core 2 until the outer ends of the sliding pins 10 reach the position inside the outer wall of the cover core 2, thereby facilitating the closing of the container cover on the container mouth or removing the container cover from the container mouth. In this embodiment, multiple movable locking parts can be provided, so that multiple sliding pins 10 are located outside the cover core 2. In this way, the container cover is more stable and reliable under the locking action of the multiple sliding pins 10.

[0035] See also Figure 10-12 The outer bottom of the sliding pin 10 is provided with a chamfered surface for facilitating the cap core 2 to enter the container mouth. When the sliding pin 10 with the above structure is closed on the container mouth, even if the driving handle 14 is not pressed downward, the chamfered surface will be pressed by the container mouth during the contact with the container mouth, so that the sliding pin 10 moves toward the center direction of the cap core 2, further facilitating the operation of closing the container cover on the container mouth.

[0036] See also Figure 1-Figure 12 The container cover is provided with a leakproof structure for preventing the material in the container from flowing out of the container opening. The leakproof structure includes a rubber ring 16 and an annular groove provided on the cover core 2 for accommodating the rubber ring 16. The position of the annular groove corresponds to the position of the container opening. The leakproof structure is provided, and the rubber ring 16 is sleeved on the annular groove. When the container cover is closed on the container opening, the rubber ring 16 is located between the outer wall of the cover core 2 and the inner wall of the container opening. In this way, even if the container is tilted excessively, when the material in the container reaches the position of the container opening, the rubber ring 16 blocks the material below the container opening, thereby playing a role in leakproofing.

[0037] See also Figure 1-Figure 12 , the working principle of the above anti-drop container cover is:

[0038] The container cover is used to cover the container mouth. The process of closing the container cover on the container mouth is: first, the driving mechanism is operated to make a locking part or multiple locking parts move toward the center of the cover body; when controlling one locking part to move toward the center of the cover body, the container cover is tilted so that the other locking part that does not move extends downward into the container mouth and reaches the bottom side of the container mouth; then the side of the container cover located at the moving locking part is put into the container mouth; at this time, the driving mechanism is operated so that the moving locking part moves in a direction away from the center of the cover body and reaches the bottom side of the container mouth, and finally the two sides of the container cover are clamped on the container mouth, and the container is tilted. When pouring materials, since the two sides of the container cover are clamped on the container mouth, the container cover is prevented from falling off the container and the container cover is prevented from falling and breaking; when controlling the multiple locking parts to move toward the center of the cover body, the driving mechanism is operated to control the outer ends of the locking parts to reach a position inside the outer wall of the cover body, and then the container cover is closed on the container mouth; at this time, the driving mechanism is operated to make the multiple locking parts move in a direction away from the center of the cover body and reach the bottom side of the container mouth, and finally the outer side of the container cover is clamped on the container mouth. Similarly, when the container is tilted to pour materials, since the outer side of the container cover is clamped on the container mouth, the container cover is prevented from slipping off the container mouth and falling.

[0039] See also Figure 1-Figure 12 A container comprises a container body, a container mouth arranged above the container body, a container handle arranged on the container body, a container mouth for discharging materials, and the container cover. Both sides of the container cover are locked on the container mouth, and when the container is tilted to pour materials, the container cover will not slide off the container mouth, thereby preventing the container cover from falling and breaking.

[0040] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A drop-proof container cover, characterized in that: The container comprises a cover body, a locking mechanism for preventing the cover body from falling off the container mouth, and a driving mechanism, wherein the locking mechanism comprises at least two locking parts, and the locking parts are located at the edge of the cover body; when the cover body is closed on the container, the locking parts are clamped on the bottom side of the container mouth; the driving mechanism is used to drive at least one locking part to move toward the center of the cover body or away from the center of the cover body, so that the locking part leaves the bottom side of the container mouth or reaches the bottom side of the container mouth; The cover body comprises a top cover for covering the container mouth and a cover core for matching with the inner diameter of the container mouth, and the cover core is a hollow cylindrical structure; There are two locking parts, one of which is a fixed locking part and the other is a movable locking part, wherein the fixed locking part includes a fixed pin, one end of which is mounted on the outer wall of the cover core and the other end of which extends outwardly along the diameter direction; the movable locking part includes a movable buckle, which is arranged opposite to the fixed pin, and when the container cover is closed, the fixed pin and the movable buckle are both clamped on the bottom side of the container mouth; The movable buckle is a sliding buckle, and the sliding buckle is slidably connected to the sliding buckle seat, and the sliding buckle seat is arranged at the bottom of the top cover. The sliding buckle seat is provided with a sliding buckle hole for accommodating the sliding buckle, and the axis of the sliding buckle hole is arranged along the diameter direction of the cover core; the driving mechanism is a sliding buckle driving mechanism for driving the sliding buckle to move outward or inward along the diameter direction of the cover core, and the sliding buckle driving mechanism includes a sliding driving rod and an avoidance groove arranged on the top cover, one end of the sliding driving rod is connected to the sliding buckle, and the other end extends upward into the avoidance groove and exceeds the cover surface of the top cover; The movable buckle is a swing buckle, and the driving mechanism is a swing driving mechanism for driving the swing buckle to swing outward or inward. The swing driving mechanism includes a swing driving rod, a torsion spring, a torsion spring seat arranged at the bottom of the top cover, and an avoidance hole arranged on the top cover for avoiding the swing driving rod; one end of the swing driving rod is connected to the swing buckle, and the other end extends upward into the avoidance hole and exceeds the cover surface of the top cover; one end of the torsion spring is fastened to the swing buckle, and the other end is fastened to the torsion spring seat. Under normal conditions, the torsion force of the torsion spring makes the outer end of the swing buckle located outside the outer wall of the cover core; an avoidance position is provided on the cover core corresponding to the swing range of the swing buckle.

2. The anti-drop container cover according to claim 1, characterized in that: The movable buckle is a sliding rod, which is slidably connected to the rod seat, and the rod seat is arranged on the bottom of the top cover, and the rod seat is provided with a rod hole for accommodating the sliding rod, and the axial direction of the rod hole is arranged along the diameter direction of the cover core; the driving mechanism is a sliding rod driving mechanism for driving the sliding rod to move outward or inward along the axial direction of the rod hole, and the sliding rod driving mechanism includes a driving arm for driving the sliding rod to move inward and a return spring for providing an outward force for the sliding rod, and the driving arm includes a connecting plate, a driving plate arranged at the bottom of the connecting plate and a driving handle, the inner side of the driving plate is provided with a driving inclined surface, and the driving inclined surface is inclined outward from top to bottom; one end of the driving handle is arranged on the connecting plate, and the other end extends upward and passes through the container cover handle located at the center position of the top cover; the sliding rod is provided with a sliding groove for matching the driving plate, and the inner end of the sliding groove is pressed against the driving inclined surface; one end of the return spring is pressed against the inner end surface of the sliding rod, and the other end is pressed against the inner wall of the cover core.

3. The anti-drop container cover according to claim 1, characterized in that: There are two locking parts, both of which are movable locking parts. The movable locking parts include a sliding pin, which is slidably connected to a pin seat, which is arranged at the bottom of the top cover, and a pin hole for accommodating the sliding pin is provided on the pin seat, and the axial direction of the pin hole is arranged along the diameter direction of the cover core; the driving mechanism is a sliding pin driving mechanism for driving the two sliding pins to move outward or inward along the axial direction of the pin hole, and the sliding pin driving mechanism includes a driving claw for driving the two sliding pins to move inward and a driving claw for providing the two sliding pins with a driving force. A thrust spring with an outward force, the driving claw includes a connecting plate, two driving members arranged on both sides of the bottom of the connecting plate, and a driving handle, the inner sides of the two driving members are provided with driving inclined surfaces, and the two driving inclined surfaces are inclined outward from top to bottom; one end of the driving handle is arranged on the connecting plate, and the other end extends upward and passes through the container cover handle located at the center of the top cover; a driving groove for matching the driving member is provided on the sliding pin, and the inner end of the driving groove is pressed against the driving inclined surface; the two ends of the thrust spring are respectively pressed against the inner end surfaces of the two sliding pins.

4. The anti-drop container cover according to claim 3, characterized in that: The bottom of the outer end of the sliding pin is provided with a chamfered surface for facilitating the cover core to enter the container opening.

5. The anti-drop container cover according to claim 1, characterized in that: The container cover is provided with a leak-proof structure for preventing the material in the container from flowing out of the container opening. The leak-proof structure includes a rubber ring and an annular groove provided on the cover core for accommodating the rubber ring. The position of the annular groove corresponds to the position of the container opening.

6. A container, characterized in that: The invention comprises a container body, a container opening arranged above the container body, a container handle arranged on the container body, a container mouth for discharging materials, and an anti-drop container cover according to any one of claims 1 to 5.

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