container

Abstract

The present invention discloses a container, including a base and a side plate, wherein the base or the side plate is provided with a discharge port, and the discharge port is provided with a cover door, and the cover door is connected to the base or the side plate through a connecting device, wherein the connecting device includes a transmission member and an elastic member, and the cover door can drive the transmission member to move outward during the opening or closing process, so that the elastic member is compressed, and when the cover door is fully opened or closed, the elastic member rebounds and drives the transmission member to move inward, and the cover door automatically maintains an open or closed state. The overall structure of the present invention is novel and reliable, and the operation is simple. During the opening or closing process of the cover door, it is not necessary to confirm whether the cover door is adsorbed in place, and human operation errors can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the field of logistics and transportation, and in particular to a container. Background Art

[0002] A container that can carry all kinds of goods. Due to its standard size and easy mobility, it is widely used for temporary storage or transportation turnover.

[0003] For the convenience of description, we take liquid bulk containers as an example. This type of container is mainly used to load and unload various types of liquid goods. Early bulk liquid containers were mostly large hollow barrels. This type of container has a large recycling volume, and the interior is not easy to clean and easily causes secondary pollution. Now there is a new type of liquid packaging and transportation box on the market. This type of box has a bottom and two sets of opposite side panels, and the plastic liner used with it is located inside the box. When loading goods, the goods are injected from the filling port on the top of the plastic liner, and when discharging, the goods are discharged through the discharge port at the bottom of the side of the container. Because the side panels of this type of container are foldable and the matching plastic liner is disposable, the recycling volume is reduced while avoiding secondary pollution.

[0004] However, the discharge port of such containers generally needs to be covered by a cover door to achieve dust-proof and anti-tampering effects. Currently, most common cover doors are a plate-shaped integral part, which is flipped and bent using the flexibility of plastic to achieve the opening and closing functions of the cover door. A solution disclosed in a patent is that a buckle is provided at one end of the cover door to cooperate with the base for installation, and a magnet or the like is installed at the other end of the cover door and at the corresponding position on the side panel after it is flipped. At the same time, a fold for flipping is generally provided at a certain distance below the upper edge of the cover door. In this way, when the cover door is flipped up and opened, it can be adsorbed with the side panel to keep the cover door open. When closing the cover door, it is necessary to flip the cover door so that it is adsorbed with the base. In this way, the cover door can be opened and closed, which is convenient for discharging goods.

[0005] However, according to actual market feedback, this type of cover door has some disadvantages. Because this type of cover door is fixed in a state of flipping and bending with the help of magnet adsorption by utilizing the flexibility of plastic. This requires the operator to be very careful to ensure that the cover door is adsorbed by the magnet. If the cover door is not fully opened or closed, and the adsorption distance of the magnet is not reached, the cover door will remain tilted and extend out of the box, occupying space outside the box. When the boxes are stacked on each other, it is easy to hit the cover door, causing damage to the cover door. For the flexible connection part, since its thickness cannot be made too thick (usually the thickness does not exceed 0.5mm), the strength of the entire valve flap is limited, affecting the service life.

[0006] To sum up, in order to reduce human operating errors, lower the damage rate of the cover door during actual use, and improve the operating experience, how to automatically keep the cover door in an open or closed state has become a new research and development topic. Summary of the invention

[0007] The object of the present invention is to provide a container to solve the above problems in the prior art.

[0008] In order to solve the above problem, according to one aspect of the present invention, there is provided a container, comprising a base and a side panel, wherein the base or the side panel is provided with a discharge port, and the discharge port is provided with a cover door, and the cover door is connected to the base or the side panel via a connecting device, and the connecting device comprises a transmission member and an elastic member, and the transmission member can be driven to move outward during the opening or closing process of the cover door, so that the elastic member is compressed, and when the cover door is fully opened or closed, the elastic member rebounds and drives the transmission member to move inward, and the cover door automatically maintains an open or closed state.

[0009] In one embodiment, a housing cavity for accommodating the cover door is provided on the side panel or the base, the housing cavity is arranged on the outside of the discharge port, and a curved surface is provided on the top of the cover door. The curved surface cooperates with the top outer surface of the housing cavity when the cover door is rotated to open or close.

[0010] In one embodiment, the cover door is opened or closed by rotating around an axis, and the distance between the axis and the top of the cover door is greater than the distance between the axis and the bottom surface of the cover door and the distance between the axis and the front surface of the cover door.

[0011] In one embodiment, the cover door is provided with an axial hole, and the transmission member is rotatably connected to the cover door via a pin shaft, wherein the distance between the axial hole and the top of the cover door is greater than the distance between the axial hole and the bottom surface of the cover door and the distance between the axial hole and the front surface of the cover door.

[0012] In one embodiment, the connecting device further comprises a pin shaft, and a pin shaft hole is provided at one end of the transmission member, and the transmission member is rotatably connected to the cover door by the cooperation of the pin shaft with the pin shaft hole on the transmission member and the shaft hole on the cover door.

[0013] In one embodiment, the end of the transmission member where the pin shaft hole is set is provided with a curved surface, and when the cover door is rotated to open or close, the bottom of the connecting groove of the cover door cooperates with the curved surface.

[0014] In one embodiment, the discharge port is arranged on the base, and the base is also provided with a accommodating cavity for accommodating a cover door, the accommodating cavity is arranged on the outside of the discharge port, wherein grooves are respectively provided on both sides of the upper part of the accommodating cavity, one end of the connecting device is rotatably connected to the cover door, and the other end of the connecting device is installed in the groove.

[0015] In one embodiment, the connecting device further comprises a fixing piece, a buckle groove is provided at the bottom of the groove, and the fixing piece is provided with a buckle, and the buckle cooperates with the buckle groove to fix the fixing piece to the base.

[0016] In one embodiment, the cover door includes a cover plate, one end of the cover plate is provided with a protrusion, both sides of the protrusion are provided with connecting grooves, and one end of the connecting device is rotatably connected to the connecting groove.

[0017] In one embodiment, the top ends of the protrusions on both sides of the connecting groove are provided with arc surfaces, and the arc surfaces cooperate with the top outer surface of the accommodating cavity when the cover door is rotated to open or close.

[0018] In one embodiment, the protrusion is a boss with the front side protruding upward, and when the cover is in a closed state, the cover sinks into the accommodating cavity on the side of the base.

[0019] In one embodiment, the transmission member is provided with a mounting hole, the side wall of the mounting hole is provided with an elastic member mounting portion, the fixing member and the elastic member are installed in the mounting hole, wherein the fixing member is provided with an opening, a boss is provided in the opening, one end of the elastic member is installed on the elastic member mounting portion, and the other end of the elastic member is installed on the boss.

[0020] In one embodiment, the boss of the fixing member is arranged on a side wall of the buckle facing the opening.

[0021] In one embodiment, the elastic member is a spring, one end of the spring is fixed to the mounting portion of the transmission member, and the other end of the spring is fixed to the boss of the fixing member.

[0022] In one embodiment, a small door is provided on the side panel, and the discharge port is arranged on a base below the small door.

[0023] According to another aspect of the present invention, there is further provided a container, comprising a base and a side panel, wherein the base or the side panel is provided with a discharge port, wherein the discharge port is provided with a cover door, wherein the cover door is connected to the base or the side panel via a connecting device, wherein the connecting device comprises an elastic member, wherein the elastic member is elastically deformed during the process of opening or closing the cover door, and when the cover door is fully opened or closed, the elastic member is reset and drives the cover door to automatically maintain an open or closed state.

[0024] The discharge port of the container of the present invention adopts the form of a cover door, a fixing part, a transmission part and an elastic part cooperating with each other. During the process of operating the cover door to open or close, the cover door drives the transmission part to move outward, and the elastic part is compressed. When the cover door is fully opened or closed, the elastic part rebounds and the transmission part moves inward, thereby ensuring that the cover door automatically remains in an open or closed state. The overall structure is novel and reliable, and the operation is simple. During the process of opening or closing the cover door, it is not necessary to confirm whether the cover door is adsorbed in place, which can effectively avoid human operating errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of a container according to one embodiment of the present invention.

[0026] Figure 2 yes Figure 1 A three-dimensional view of the base.

[0027] Figure 3 yes Figure 1 A partial exploded perspective view of the base.

[0028] Figure 4 is a perspective view of the base with the cover door removed.

[0029] Figure 5-6 The invention is a three-dimensional diagram of a cover door provided with a connecting device at different angles.

[0030] Figure 7 yes Figure 5-6 A three-dimensional exploded view of a cover door provided with a connecting device.

[0031] Figure 8 It is a partial enlarged schematic diagram of the cover door.

[0032] Figure 9-10 They are three-dimensional views at different angles of a transmission member according to an embodiment of the present invention.

[0033] Figure 11-12 They are three-dimensional views at different angles of a fixing member according to an embodiment of the present invention.

[0034] Figure 13-16 The process of the cover door from the closed state to the open state is shown. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so that the purpose, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0036] In the following description, certain specific details are set forth for the purpose of illustrating the various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0037] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0038] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0039] The present invention generally relates to a container, wherein the container is provided with a discharge port, the discharge port is provided with a cover door, and the cover door is connected to the discharge port through a connecting device, wherein the connecting device includes a fixing member, a transmission member, and an elastic member. During the process of operating the cover door to be opened or closed, the cover door drives the transmission member to move outward, and the elastic member is compressed. When the cover plate is fully opened or closed, the elastic member rebounds, and the transmission member moves inward, thereby ensuring that the cover door automatically remains in an open or closed state. The overall structure is novel and reliable, and the operation is simple. During the process of opening or closing the cover door, it is not necessary to confirm whether the cover door is adsorbed in place, which can effectively avoid human operating errors.

[0040] The container of the present invention can be a composite intermediate bulk container (IBC). Composite intermediate bulk container (IBC) is a type of packaging turnover container widely used in food, biochemical, pharmaceutical, chemical and other industries internationally. Since IBC container barrels can be reused many times, they have obvious advantages in filling, storage and transportation. Compared with round barrels, IBC container barrels can save 35% of storage space. The size meets ISO standards. It is not only suitable for aseptic canning, but also has a compact box body, which is convenient for large-scale safe and efficient storage. Therefore, it is widely used in the transportation, packaging and storage of liquids, particles and flakes and other materials. At present, there are three existing specifications: 820L, 1000L, and 1250L. Usually, its composition structure includes a plastic liner, a filling port, a discharge valve, a side plate, a bottom plate and a cover plate. Since most of the liquids or particulates stored in IBC are pharmaceutical intermediates, beverage concentrates, food additives and even dangerous materials, they are not only valuable but also related to hygiene and safety. Therefore, a cover door is required to seal the discharge port during use.

[0041] According to one aspect of the present invention, it mainly relates to a container, including a base and a side panel, wherein the base or the side panel is provided with a discharge port, the discharge port is provided with a cover door, the cover door is connected to the base or the side panel via a connecting device, the connecting device includes an elastic member, the elastic member undergoes elastic deformation during the process of opening or closing the cover door, and when the cover door is fully opened or closed, the elastic member resets and drives the cover door to automatically maintain an open or closed state. For example, one end of the elastic member is directly connected to the cover door, and the other end of the elastic member is directly connected to the base or the side panel, when the cover door is opened or closed, the elastic member is stretched, and when the cover door is opened to a horizontal position, under the action of the elastic force of the elastic member, the cover door can continue to flip upwards so as to automatically remain open, or perhaps under the action of the elastic force, the cover door falls back and automatically remains closed.

[0042] According to a second aspect of the present invention, there is provided a container, comprising a base and a side panel, wherein the base or the side panel is provided with a discharge port, the discharge port is provided with a cover door, the cover door is connected to the base or the side panel via a connecting device, the connecting device comprises a transmission member and an elastic member, and the transmission member can be driven to move outward during the process of opening or closing the cover door, so that the elastic member is compressed, and when the cover door is fully opened or closed, the elastic member rebounds and drives the transmission member to move inward, and the cover door automatically maintains an open or closed state.

[0043] The second aspect of the present invention is described below mainly with reference to the accompanying drawings.

[0044] Combine the following Figure 1-16 An embodiment of the present invention is described in detail.

[0045] Figure 1 is a perspective view of a container 100 according to an embodiment of the present invention. Figure 2 yes Figure 1 A three-dimensional view of the base 1, Figure 3 yes Figure 1 A partial three-dimensional exploded view of the base 1, Figure 4 is a perspective view of the base with the cover door removed. Figure 1-4 As shown, the container 100 includes a base 1 and two pairs of opposite side panels 2 and 3. A small door 4 is provided on one of the side panels 2. The pair of opposite side panels 2 and 3 can be folded relative to the base 1. A discharge port 11 is provided on the base 1, and the discharge port 11 is usually arranged on one side of the base below the small door 4. A cover door 5 is provided on the discharge port 11, and dust and tamper-proof effects are achieved through the cover door 5.

[0046] Reference Figure 3-4 The cover door 5 is connected to the discharge port 11 through a connecting device 6. Specifically, a side wall of the base 1 is provided with a discharge port 11, and a cover door accommodating cavity 14 is provided on the outer side of the discharge port 11. Grooves 12 are also provided on both sides of the upper part of the cover door accommodating cavity 14. One end of the connecting device 5 is rotatably connected to the cover door 5, and the other end of the connecting device 5 is installed in the groove 12.

[0047] Figure 5-6 are three-dimensional views of a cover door 5 provided with a connecting device 6 at different angles, Figure 7 yes Figure 5-6 6 is a perspective exploded view of a cover door 5 provided with a connecting device 6. Figure 5-7 As shown, the cover door 5 is plate-shaped and includes a cover plate 50, a protrusion 51 is provided at one end of the cover plate 50, connecting grooves 52 are provided on both sides of the protrusion 51, shaft holes 521 are provided on both sides of the connecting groove 52, and the top cross-sections of the protrusions 51 on both sides of the connecting groove 52 are arc-shaped.

[0048] Figure 8 This is a partial enlarged schematic diagram of the cover door. Figure 8 Assuming that the distance between the shaft hole 521 and the top of the cover plate 50 is D3, the distance between the shaft hole 521 and the bottom of the cover plate 50 is D1, and the distance between the shaft hole 521 and the front of the cover plate 50 is D2, then D3 is greater than D2 and also greater than D1. There are no special requirements for D1 and D2, and they can be equal or different in size.

[0049] The advantages of this arrangement are: first, when the cover 50 begins to flip, it will drive the transmission member 61 to move outward, and the elastic member 62 will be passively compressed. When the cover 50 flips to a certain angle (exceeding the arc apex at the top of the cover 50), the elastic member 62 begins to rebound, driving the transmission member 61 to move inward, thereby driving the cover 50 to remain in an open or closed state; second, since the protrusion 51 on the cover 50 is a boss protruding upward from the front, when the cover 50 is in a closed state, the cover 50 sinks into the side of the box to avoid friction and collision, thereby increasing the service life. When the cover 50 is in an open state, the cover 50 is close to the side panel of the box, or is located in the corresponding accommodating cavity on the side panel, which can also play a protective role and increase the service life.

[0050] Continue to refer to Figure 5-7 The connecting device 6 generally includes a transmission member 61, an elastic member 62 and a fixing member 63. One end of the transmission member 61 is rotatably connected to the transmission cover 5, and the other end of the transmission member 61 extends into the groove 12 of the base 1. The elastic member 62 and the fixing member 63 are arranged in the transmission member 61. When the cover door 5 is opened or closed, the cover door 5 drives the transmission member 61 to move outward, and the elastic member 62 is compressed. When the cover door 5 is fully opened or closed, the elastic member 62 rebounds and the transmission member 61 moves inward, thereby ensuring that the cover door automatically remains in an open or closed state.

[0051] Specifically, a protrusion 51 is provided at the top of the cover door 5, and a connecting groove 52 is provided on both sides of the protrusion 51, and the transmission member 51 is rotatably connected to the connecting groove 52. In this example, an axis hole 521 is provided in the connecting groove 52, and the connecting device 6 also includes a pin 64, and a pin hole 612 is provided at one end of the transmission member 61. The main body of the pin 64 penetrates into the pin hole 612 and extends both ends into the axis hole 521 in the connecting groove 52, so that the transmission member 61 is rotatably connected to the cover door 5. However, it can be understood by those skilled in the art that the pin 64 may not be provided separately, but the pins may be integrally extended on both sides of the end of the transmission member 61.

[0052] Refer to the following Figure 9-10 The specific structure of the transmission member 61 is described. Figure 9-10 They are three-dimensional views of a transmission member 61 of an embodiment of the present invention at different angles. Figure 9-10As shown, the transmission member 61 is formed as a rectangular block structure as a whole and is provided with a mounting hole 611. An elastic member mounting portion 613 is provided on the end wall of the mounting hole 611. For example, the elastic member 62 is a spring, and the elastic member mounting portion 613 is a mounting protrusion. The end of the spring is sleeved on the mounting protrusion. A pin hole 612 is provided at the end of the mounting hole 611 of the transmission member 61. The pin hole 612 extends from the left side of the transmission member 61 to the right side of the transmission member 61. An arc surface 614 is provided at one end of the transmission member 61 where the pin hole 612 is provided. When the cover door 5 is rotated to open or close, the bottom of the connecting groove 52 of the cover door 5 contacts the arc surface 614.

[0053] Refer to the following Figure 11-12 The specific structure of the fixing member 63 will be described. Figure 11-12 They are three-dimensional views of a fixing member 63 according to an embodiment of the present invention at different angles. Figure 11-12 As shown, the fixing member 63 includes a main body 630, and the main body 630 is provided with an opening 631. A buckle 633 is provided at one end of the opening 631, and the other end of the opening 631 remains in an open state. A boss 632 is provided on the side of the buckle 633 facing the opening, and the boss 632 is used to install the other end of the elastic member. For example, if the elastic member is a spring, one end of the spring is sleeved on the elastic member mounting portion 613 in the transmission member 61, and the other end is sleeved on the boss 632 of the fixed main body 63.

[0054] Return to reference Figure 5-7 The pin hole 612 at one end of the transmission member 61 cooperates with the shaft hole 521 and the pin 64 on the cover plate 50 to be rotatably connected, the other end of the transmission member 61 extends into the groove 12 of the base 1, and the fixing member 63 and the elastic member 62 are located in the mounting hole 611 of the transmission member 61. Figure 13-16 , a buckle groove 13 is provided in the groove 12 of the base 1, and the buckle 633 on the fixing member 63 is fixed to the buckle groove 13 on the base 1, and both ends of the elastic member 62 are respectively fixed to the elastic member mounting portion 613 at one end in the mounting hole 611 of the transmission member 61, and the other end is fixed to the mounting boss 633 on the fixing member 63. During the process of operating the cover plate 50 to be opened or closed, the cover plate 50 rotates around the pin shaft 64, thereby driving the transmission member 61 to move outward, and the elastic member 62 is compressed. When the cover plate 50 is fully opened or closed, the elastic member 62 rebounds, and the transmission member 61 moves inward, thereby ensuring that the cover door 5 automatically remains in the open or closed state.

[0055] Figure 13-16 The process of the cover door 5 from the closed state to the open state is shown below. Figure 13-16 Describe the process of the cover door from closing to opening.

[0056] Fig.13 The cover door 5 is shown in a closed state. Fig.13As shown, the transmission member 61 is located in the groove 12 on the base 1, and the transmission member 61 can move in the groove 12. In particular, the buckle 633 on the fixing member 63 is fixedly connected with the buckle groove 13, so that the cover door 5 is fixedly connected with the base 1 as a whole.

[0057] Fig.14 The cover plate 50 is shown in a state of being flipped upward by 45°. Fig.14 As shown, the cover plate 50 rotates upward around the pin 64. Due to the structural characteristics of the cover plate 50 (D3 is greater than D2 and D1), the arc surface at the top of the cover plate 50 abuts against the side of the base 1, thereby driving the transmission member 61 to move outward, and the elastic member 62 is in a compressed state. Assuming that the external force for flipping upward is canceled at this time, the elastic member 62 rebounds, thereby driving the transmission member 61 to move inward, and the cover plate 50 automatically flips downward to maintain the closed state.

[0058] Fig.15 The cover plate 50 is shown in a state where it is turned up 90°. Fig.15 As shown, at this time, the top arc surface of the cover 50 is against the side of the base 1, and the compression of the elastic member 62 is the largest. Assuming that the external force for flipping upward is cancelled at this time, the elastic member 62 rebounds, thereby driving the transmission member 61 to move inward, and the cover 50 will automatically move downward or flip upward to maintain a closed or open state.

[0059] Fig.16 The cover is shown to be kept open. Fig.16 As shown, at this time, the front side of the protrusion 51 on the cover plate 50 abuts against the side surface of the base 1, the cover plate 50 is close to the side plate of the box body, and the elastic member 62 is in a rebound state.

[0060] It should be noted that, although the discharge port is disposed on the base in the above embodiments, those skilled in the art can understand that the discharge port can also be disposed on the side panel, and in this case, the corresponding structures of the discharge port disposed on the base are moved to the side panel, such as the groove, buckle groove accommodating cavity, etc. are also disposed on the side panel, and the discharge port is disposed on the side panel and does not affect the implementation of the present invention. In addition, in the above embodiments, a small door is disposed on the side panel of the container, but those skilled in the art can understand that the small door may not be disposed on the side panel.

[0061] It should also be noted that in the above embodiments, the side panels and the base can be folded together. At this time, when there is no goods stored in the container, the space occupied by the container can be reduced by folding the side panels onto the base. Of course, the side panels and the base may not be folded together, and these situations will not affect the implementation of the technical solution of the present invention.

[0062] In summary, the discharge port of the container of the present invention adopts the form of the cover plate, the fixing part, the transmission part and the elastic part cooperating with each other. During the process of operating the cover plate to open or close, the cover plate drives the transmission part to move outward, and the elastic part is compressed. When the cover plate is fully opened or closed, the elastic part rebounds and the transmission part moves inward, thereby ensuring that the cover door automatically remains in the open or closed state. The overall structure is novel and reliable, and the operation is simple. During the process of opening or closing the cover door, it is not necessary to confirm whether the cover door is adsorbed in place, which can effectively avoid human operation errors.

[0063] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A container, comprising a base and a side plate, wherein the base or the side plate is provided with a discharge port, the discharge port is provided with a cover door, and the cover door is connected to the base or the side plate through a connecting device, characterized in that: The connecting device includes a transmission member and an elastic member. When the cover door is opened or closed, the transmission member can be driven to move outward, so that the elastic member is compressed. When the cover door is fully opened or closed, the elastic member rebounds and drives the transmission member to move inward, and the cover door automatically remains in an open or closed state. The discharge port is arranged on the base, and the base is also provided with a receiving cavity for receiving the cover door, the receiving cavity is arranged outside the discharge port, wherein the upper part of the receiving cavity is provided with a groove, one end of the connecting device is rotatably connected to the cover door, and the other end of the connecting device is installed in the groove; The connecting device also includes a fixing piece, a buckle groove is provided at the bottom of the groove, and the fixing piece is provided with a buckle, and the buckle cooperates with the buckle groove to fix the fixing piece and the base.

2. The container according to claim 1, characterized in that The side panel or the base is provided with a receiving cavity for receiving the cover door, the receiving cavity is arranged outside the discharge port, the top of the cover door is provided with an arc surface, and the arc surface cooperates with the top outer surface of the receiving cavity during the process of the cover door being rotated to open or close.

3. The container according to claim 1, characterized in that The cover door is opened or closed by rotating around an axis, and the distance between the axis and the top of the cover door is greater than the distance between the axis and the bottom surface of the cover door and the distance between the axis and the front surface of the cover door.

4. The container according to claim 1, characterized in that The cover door is provided with an axial hole, and the transmission member is rotatably connected to the cover door through a pin shaft, wherein the distance between the axial hole and the top of the cover door is greater than the distance between the axial hole and the bottom surface of the cover door and the distance between the axial hole and the front surface of the cover door.

5. The container according to claim 4, characterized in that The connecting device also includes a pin shaft, and one end of the transmission member is provided with a pin shaft hole. The transmission member and the cover door are rotatably connected by the cooperation of the pin shaft with the pin shaft hole on the transmission member and the shaft hole on the cover door.

6. The container according to claim 5, characterized in that The end of the transmission member where the pin shaft hole is arranged is provided with an arc surface, and during the process of the cover door being rotated to open or close, the bottom of the connecting groove of the cover door cooperates with the arc surface.

7. The container according to claim 1, characterized in that The cover door comprises a cover plate, one end of the cover plate is provided with a protruding portion, both sides of the protruding portion are respectively provided with connecting grooves, and one end of the connecting device is rotatably connected to the connecting groove.

8. The container according to claim 7, characterized in that The top ends of the protruding parts on both sides of the connecting groove are provided with arc surfaces, and the arc surfaces cooperate with the top outer surface of the accommodating cavity during the process of the cover door being rotated to open or close.

9. The container according to claim 7, characterized in that The protruding portion is a boss with the front side protruding upward. When the cover is in a closed state, the cover sinks into the accommodating cavity on the side of the base.

10. The container according to claim 1, characterized in that The transmission member is provided with a mounting hole, and the side wall of the mounting hole is provided with an elastic member mounting portion, and the fixing member and the elastic member are installed in the mounting hole, wherein the fixing member is provided with an opening, and a boss is provided in the opening, one end of the elastic member is installed on the elastic member mounting portion, and the other end of the elastic member is installed on the boss.

11. The container according to claim 10, characterized in that The boss of the fixing member is arranged on a side wall of the buckle facing the opening.

12. The container according to claim 10, characterized in that The elastic member is a spring, one end of the spring is fixed on the mounting portion of the transmission member, and the other end of the spring is fixed on the boss of the fixing member.

13. The container according to claim 1, characterized in that The side plate is provided with a small door, and the discharge port is arranged on a base below the small door.

14. A container, comprising a base and a side plate, wherein the base or the side plate is provided with a discharge port, the discharge port is provided with a cover door, and the cover door is connected to the base or the side plate through a connecting device, characterized in that: The connecting device includes an elastic member, which is elastically deformed during the opening or closing of the cover door. When the cover door is fully opened or closed, the elastic member is reset and drives the cover door to automatically maintain the open or closed state. The discharge port is arranged on the base, and the base is also provided with a receiving cavity for receiving the cover door, the receiving cavity is arranged outside the discharge port, wherein the upper part of the receiving cavity is provided with a groove, one end of the connecting device is rotatably connected to the cover door, and the other end of the connecting device is installed in the groove; The connecting device also includes a fixing piece, a buckle groove is provided at the bottom of the groove, and the fixing piece is provided with a buckle, and the buckle cooperates with the buckle groove to fix the fixing piece to the base.

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