Flip assembly and vacuum grain storage barrel

Abstract

The utility model relates to the technical field of flip type structures, and particularly discloses a flip assembly and a vacuum grain storage barrel. The flip cover assembly comprises a first supporting piece, a second supporting piece and a resistance mechanism. The first supporting piece and the second supporting piece are connected in a turnover mode. The resistance mechanism comprises an elastic clamping block and a fixed clamping block; the fixed clamping block is arranged on the second supporting piece; the elastic clamping block is arranged on the first supporting piece and abuts against the fixed clamping block. In the process that the first supporting piece and the second supporting piece are overturned towards the closing direction, the first supporting piece and the second supporting piece need to push and extrude the elastic clamping block; therefore, the elastic clamping block can provide elastic jacking force for the first supporting piece and the second supporting piece when the first supporting piece and the second supporting piece are turned over in the closing direction, so that the stability of the first supporting piece and the second supporting piece in the opening state is improved, and the risk that people or pets are injured due to clamping of the first supporting piece and the second supporting piece is reduced.

Description

Technical Field

[0001] This application relates to the field of flip-top structure technology, and more particularly to a flip-top assembly and a vacuum grain storage bin. Background Technology

[0002] Flip-top structures are common in everyday life, such as flip-top storage containers. To use them, you first place the items you want to store inside the container, then flip the lid over to close it, creating a relatively enclosed space between the lid and the container.

[0003] In practical applications, flip-top lids can easily fall and close on the container if it shakes, is placed unevenly, or is bumped. If a user's body is positioned on the container, there is a risk of being pinched by the lid and the container itself. For some vacuum storage containers, such as pet food containers, the weight of the lid increases when the vacuum unit is located on top, further increasing the risk of the user or pet being pinched by the falling lid. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a flip-top assembly and a vacuum grain storage container to reduce the risk of organisms being pinched by the cover.

[0005] To achieve the above-mentioned technical objectives, the first aspect of this application provides a flip cover assembly, including: a first support member, a second support member, and a resistance mechanism;

[0006] The first support member and the second support member are rotatably connected;

[0007] The resistance mechanism includes: an elastic locking block and a fixed locking block;

[0008] The fixing block is disposed on the second support member;

[0009] The elastic locking block is disposed on the first support member and abuts against the fixed locking block;

[0010] During the process of the first support member and the second support member flipping in the opening direction, the elastic block extends towards the fixed block.

[0011] Furthermore, the elastic block includes: a sliding block and a spring;

[0012] The sliding block is slidably disposed on the first support member and abuts against the fixed block;

[0013] One end of the spring abuts against the first support member, and the other end abuts against the sliding block.

[0014] As the first support member and the second support member flip in the opening direction, the sliding block slides towards the fixed block and the spring gradually extends.

[0015] Furthermore, when the first support member and the second support member are flipped relative to each other to be in a fully open state, the elastic block is located in the vertical direction of the fixed block, and the elastic block pushes against the top or bottom surface of the fixed block.

[0016] Furthermore, the top or bottom surface of the fixed block that abuts against the elastic block is a plane.

[0017] Furthermore, the end face of the sliding block that abuts against the fixed block is an inclined surface;

[0018] During the process of the first support member and the second support member flipping in the opening direction, the contact point between the inclined surface and the fixed block changes, causing the sliding block to slide closer to the fixed block.

[0019] Furthermore, the resistance mechanism includes: a support base;

[0020] The support base is fixed to the first support member;

[0021] The sliding block is slidably disposed within the support base.

[0022] Furthermore, a first mounting groove is provided inside the support base;

[0023] A protruding post is provided in the first mounting groove;

[0024] The sliding block is provided with a second mounting groove;

[0025] The spring is sleeved on the protrusion and extends into the second mounting groove.

[0026] Furthermore, it also includes: a disassembly and assembly mechanism;

[0027] The disassembly / connection mechanism includes: a fixing plate and a plug-in plate;

[0028] The fixing plate can be flipped to connect to the first support member;

[0029] The plug-in plate is fixedly connected to the second support member;

[0030] The plug-in plate is detachably connected to the fixing plate.

[0031] Furthermore, the disassembly / reassembly mechanism includes: a sliding block, a second elastic element, and a pressing block;

[0032] The fixing plate is provided with a lock hole;

[0033] The sliding block is slidably disposed on the plug-in plate;

[0034] When the sliding block is engaged with the lock hole, the plug plate engages with the fixing plate.

[0035] The second elastic element is disposed on the plug plate and is used to provide the sliding block with an elastic force to slide in the direction of the lock hole;

[0036] The pressing block is slidably disposed on the plug-in plate;

[0037] The pressing block and the sliding block are wedge-shaped, so that when the pressing block slides towards the sliding block, it causes the sliding block to slide away from the keyhole.

[0038] Furthermore, the disassembly / reassembly mechanism includes: two sliding blocks;

[0039] The fixing plate is provided with two lock holes;

[0040] The second elastic element is disposed between the two sliding blocks.

[0041] A second aspect of this application provides a flip cover assembly, comprising: a first support member, a second support member, and a resistance mechanism;

[0042] The first support member and the second support member are rotatably connected;

[0043] The resistance mechanism includes: a locking block and a fixing locking block;

[0044] The fixing block is disposed on the second support member;

[0045] The card block is disposed on the first support member, and the card block abuts against the fixed card block;

[0046] When the first support member and the second support member are flipped relative to each other to be in a fully open state, the locking block and the fixing block engage.

[0047] Furthermore, the card block is connected with an elastic protrusion;

[0048] The fixing block is provided with a card slot;

[0049] When the first support member and the second support member are flipped relative to each other to be in a fully open state, the elastic protrusion is engaged in the slot.

[0050] A third aspect of this application provides a vacuum grain storage bin, comprising: a vacuum assembly and a flip-top assembly as described in any one of the above claims;

[0051] In the flip-top assembly, the first support member is the cover body, and the second support member is the container;

[0052] The vacuum assembly is disposed on the first support or the second support.

[0053] Furthermore, a sealing surface is provided at the top of the inner wall of the second support member;

[0054] The sealing surface is an upward-sloping surface.

[0055] As can be seen from the above technical solutions, this application provides a flip-top assembly and a vacuum grain storage bin. The flip-top assembly includes: a first support member, a second support member, and a resistance mechanism; the first support member and the second support member are rotatably connected; the resistance mechanism includes: an elastic locking block and a fixed locking block; the fixed locking block is disposed on the second support member; the elastic locking block is disposed on the first support member and abuts against the fixed locking block.

[0056] As the first and second supports flip in the opening direction, the elastic block extends towards the fixed block. Conversely, as the first and second supports flip in the closing direction, they need to push against the elastic block. Therefore, the elastic block provides an elastic pushing force to the first and second supports when they flip in the closing direction, increasing the stability of the first and second supports in the open state and reducing the risk of injury to people or pets caused by the first and second supports clamping together. Attached Figure Description

[0057] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is a schematic diagram illustrating the flipping process of a flip cover assembly provided in an embodiment of this application;

[0059] Figure 2 A partial cross-sectional view of a flip cover assembly in a closed state, provided as an embodiment of this application;

[0060] Figure 3 A partial cross-sectional view of a flip cover assembly during the flip-opening process, provided as an embodiment of this application;

[0061] Figure 4 A partial cross-sectional view of a flip cover assembly in a fully open state, provided as an embodiment of this application;

[0062] Figure 5 A schematic diagram of the support base position of a flip cover assembly provided in an embodiment of this application;

[0063] Figure 6 A partial exploded view of the resistance mechanism of a flip cover assembly provided in this application embodiment;

[0064] Figure 7 A schematic diagram of a resistance mechanism and a disassembly mechanism for a flip cover assembly provided in an embodiment of this application;

[0065] Figure 8 A cross-sectional view of a disassembly mechanism for a flip cover assembly provided in an embodiment of this application;

[0066] Figure 9 A disassembly diagram of a flip cover assembly disassembly mechanism provided in an embodiment of this application;

[0067] Figure 10 A schematic diagram of a flip cover assembly when the first support member and the second support member are separated, provided in an embodiment of this application;

[0068] Figure 11 A schematic diagram illustrating the flipping process of a flip cover assembly provided for other embodiments of this application;

[0069] Figure 12 A schematic diagram of the overall structure of a vacuum grain storage bin provided in this application embodiment;

[0070] Figure 13 A schematic diagram of a vacuum grain storage bin provided in this application embodiment;

[0071] In the picture:

[0072] 10. First support component;

[0073] 20. Second support component;

[0074] 30. Resistance mechanism; 31. Elastic locking block; 311. Sliding locking block; 312. Spring; 313. Inclined surface; 314. Second mounting groove; 32. Fixed locking block; 33. Support base; 331. First mounting groove; 332. Protruding post; 34. Locking block; 35. Elastic protrusion; 36. Locking groove; 37. Support block;

[0075] 40. Disassembly / reassembly mechanism; 41. Fixing plate; 42. Insertion plate; 43. Sliding block; 44. Second elastic element; 45. Pressing block; 46. Locking hole; Third elastic element; 48. Connecting block;

[0076] 50. Vacuum components. Detailed Implementation

[0077] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0078] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0079] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0080] Please see Figure 1 In the first aspect of this application, a flip cover assembly is provided, including: a first support member 10, a second support member 20, and a resistance mechanism 30.

[0081] The first support member 10 and the second support member 20 are rotatably connected. The first support member 10 and the second support member 20 form a flip-top structure. In application, the first support member 10 and the second support member 20 can each serve as either a cover or a container. For ease of explanation, in this embodiment, the first support member 10 is used as the cover and the second support member 20 is used as the container.

[0082] The resistance mechanism 30 includes an elastic locking block 31 and a fixed locking block 32. The elastic locking block 31 is elastic. The fixed locking block 32 is disposed on the second support member 20; the elastic locking block 31 is disposed on the first support member 10 and abuts against the fixed locking block 32.

[0083] In this embodiment, the resistance mechanism 30 is positioned at a flipped position between the first support member 10 and the second support member 20. When the first support member 10 and the second support member 20 are in the closed state, the elastic locking block 31 is in the compressed state. As the first support member 10 and the second support member 20 flip relative to each other in the opening direction, the elastic locking block 31 gradually extends and remains in contact with the fixed locking block 32, that is, the elastic locking block 31 extends towards the fixed locking block 32.

[0084] Correspondingly, during the process of the first support member 10 and the second support member 20 flipping relative to each other in the closing direction, the first support member 10 needs to push the elastic block 31 to compress it. Therefore, the first support member 10 needs to overcome the elastic force of the elastic block 31 to do work during the closing and flipping process.

[0085] Under the elastic force of the elastic locking block 31, the closing resistance of the first support member 10 can be increased. In existing flip-top structures, after the lid is flipped open relative to the container, the angle between the lid and the end face of the container is generally greater than or equal to ninety degrees.

[0086] Taking the scenario where the lid is most likely to fall as an example, when the lid is flipped open relative to the container, the angle between the lid and the container's end face is 90 degrees. Without other supporting forces, the lid is prone to falling and closing on the container if it shakes, is placed unevenly, or experiences a slight bump. In this embodiment, as... Figure 1 As shown, when the first support member 10 is flipped to the right and fully opened, if the first support member 10 is flipped to the left, it needs to overcome the elastic force of the elastic block 31 to compress the elastic block 31. Therefore, it is more stable than when the elastic block 31 is not set, and thus the risk of the first support member 10 falling and injuring the user or pet is reduced.

[0087] For the installation of the elastic locking block 31, a support block 37 can be fixedly provided on the first support member 10. The elastic locking block 31 is provided on the support block 37.

[0088] It should be noted that the first support member 10 and the second support member 20 can be rotated relative to each other by means of hinges or other means. Correspondingly, when the first support member 10 rotates relative to the second support member 20, the elastic block 31 will rotate synchronously around the rotation axis of the first support member 10.

[0089] In practical applications, the position of the pivot between the first support member 10 and the second support member 20 can be set as needed, specifically so that the distance between the support block 37 and the fixed block 32 gradually increases during the flipping process.

[0090] As one implementation method, the elastic block 31 can be an integral block structure with elasticity, specifically, it can be compressed.

[0091] For a more specific embodiment, please refer to Figures 3 to 5 The elastic locking block 31 includes a sliding locking block 311 and a spring 312. The sliding locking block 311 is slidably disposed on the first support member 10 and abuts against the fixed locking block 32. One end of the spring 312 abuts against the first support member 10 and the other end abuts against the sliding locking block 311. During the process of the first support member 10 and the second support member 20 flipping in the opening direction, the sliding locking block 311 slides towards the fixed locking block 32 and the spring 312 gradually extends.

[0092] like Figure 2 As shown, when the first support member 10 and the second support member 20 are in the closed state, the spring 312 is in the compressed state.

[0093] like Figure 3 As shown, during the process of the first support member 10 flipping in the opening direction, the spring 312 gradually extends.

[0094] like Figure 4 As shown, when the first support member 10 is flipped to the fully open state, the elastic block 31 is located in the vertical direction of the fixed block 32, and the elastic block 31 pushes against the top or bottom surface of the fixed block 32. That is, in the fully open state, the spring 312 pushes the sliding block 311, causing the sliding block 311 to push against the top or bottom surface of the fixed block 32.

[0095] During the process of the first support member 10 flipping in the closing direction, as the first support member 10 flips, the sliding block 311 will be squeezed by the fixed block 32 and gradually slide towards the compression spring 312. Therefore, during the closing process, the first support member 10 needs to do work to overcome the elastic force of the spring 312. When the first support member 10 is flipped 90°, the stability of the first support member 10 after opening can be effectively improved.

[0096] As a further improvement, the top or bottom surface of the fixed block 32 that abuts against the elastic block 31 is a plane, which can further increase the stability of the first support member 10 in the open state.

[0097] In one embodiment, the first support member 10 is located above the second support member 20. Therefore, when the first support member 10 is fully open, the sliding block 311 pushes against the top surface of the fixed block 32. In the closed state, the sliding block 311 abuts against the inner side of the fixed block 32. The inner side and top surface of the fixed block 32 can be configured as an arc transition structure to facilitate the sliding block 311 to rotate around the fixed block 32.

[0098] In the embodiments illustrated in this application, the elastic locking block 31 is disposed on the first support member 10 and the fixing locking block 32 is disposed on the second support member 20, with the second support member 20 serving as a container and the first support member 10 serving as a lid. In practical applications, where the second support member 20 serves as the container and the first support member 10 serves as the lid, the elastic locking block 31 can also be disposed on the second support member 20 and the fixing locking block 32 can also be disposed on the first support member 10. Specific details will not be elaborated upon in this embodiment.

[0099] In one embodiment, the end face of the sliding block 311 that abuts against the fixed block 32 is an inclined surface 313; during the process of the first support member 10 and the second support member 20 flipping in the opening direction, the contact point between the inclined surface 313 and the fixed block 32 changes, so that the sliding block 311 slides closer to the fixed block 32.

[0100] Specifically, if we take the fixed block 32 as being located outside the sliding block 311, then in the closed state, the inclined surface 313 faces upwards and outwards.

[0101] In one embodiment, see Figures 2 to 6 The resistance mechanism 30 includes: a support base 33; the support base 33 is fixed on the first support member 10; and a sliding block 311 is slidably disposed within the support base 33.

[0102] In application, the sliding block 311 and the spring 312 can be integrated into the support base 33 to achieve modularity of the resistance mechanism 30. Correspondingly, the fixing block 32 can be detachably fixed to the second support member 20 by bolts or the like. The support base 33 can be detachably fixed to the support member 33 by bolts or other connecting parts.

[0103] Optionally, the support base 33 is provided with a first mounting groove 331; a protrusion 332 is provided within the first mounting groove 331; a second mounting groove 314 is provided within the sliding block 311; and a spring 312 is sleeved on the protrusion 332 and extends into the second mounting groove 314. The first mounting groove 331 is used for mounting the sliding block 311 and also provides guidance for its sliding. The protrusion 332 and the second mounting groove 314 are used for mounting the spring 312, and the protrusion 332 can also provide guiding support for the extension and retraction of the spring 312.

[0104] In practical applications, multiple protrusions 332 can be provided in the first mounting slot 331. Correspondingly, multiple springs 312 can be connected to the sliding block 311 at the same time. Furthermore, a support base 33 can be provided with multiple sliding blocks 311, that is, a fixed block 32 can connect to multiple sliding blocks 311.

[0105] When cleaning the flip-top assembly is required, existing flip-top assemblies generally can only be wiped or rinsed after opening the flip-top. However, when electronic components are installed on the flip-top assembly, such as when a vacuum assembly is installed on the flip-top assembly as described below, direct rinsing is not suitable. Furthermore, with the resistance mechanism 30 provided in this embodiment, dust is more likely to accumulate at the flip-top position of the flip-top assembly.

[0106] For ease of cleaning of the flip assembly, please refer to one embodiment. Figures 7 to 10 The flip-top assembly also includes a disassembly mechanism 40. The disassembly mechanism 40 includes a fixing plate 41 and a plug-in plate 42; the fixing plate 41 is flip-connected to the first support member 10; the plug-in plate 42 is fixedly connected to the second support member 20; the plug-in plate 42 and the fixing plate 41 are detachably connected.

[0107] In this embodiment, the first support member 10 and the second support member 20 are connected by a disassembly mechanism 40. When the plug plate 42 is removed from the fixing plate 41, the first support member 10 and the second support member 20 can be separated, which facilitates cleaning of the entire flip assembly.

[0108] In one embodiment, the aforementioned fixing block 32 can serve as a flip-connector between the first support member 10 and the second support member 20. Specifically, the fixing block 32 may be provided with a pivot, and the first support member 10 may be connected through the pivot, so that the fixing block 32 and the first support member 10 can be flipped together.

[0109] Furthermore, the fixing plate 41 can be disposed on the fixing block 32, or the fixing plate 41 and the fixing block 32 can be integrated. That is, the fixing plate 41 is rotatably connected to the first support member 10 by connecting the fixing block 32. Here, the fixing plate 41 and the fixing block 32 being integrated means that the fixing plate 41 and the fixing block 32 can be the same component.

[0110] In a more specific embodiment, the disassembly and assembly mechanism 40 includes: a sliding block 43, a second elastic element 44, and a pressing block 45; a locking hole 46 is provided on the fixing plate 41; the sliding block 43 is slidably disposed on the plug-in plate 42; when the sliding block 43 is engaged with the locking hole 46, the plug-in plate 42 is engaged with the fixing plate 41; the second elastic element 44 is disposed on the plug-in plate 42 and is used to provide elastic force to the sliding block 43 to slide in the direction of the locking hole 46; the pressing block 45 is slidably disposed on the plug-in plate 42; the pressing block 45 and the sliding block 43 are wedge-fitted so that when the pressing block 45 slides towards the sliding block 43, it drives the sliding block 43 to slide away from the locking hole 46.

[0111] In this embodiment, both the pressing block 45 and the sliding block 43 are provided with inclined surfaces, and the inclined surfaces of the two abut against each other. When it is necessary to separate the plug plate 42 from the fixing plate 41, by driving the pressing block 45 to slide, the pressing block 45 drives the sliding block 43 to slide, so that the sliding block 43 slides out of the lock hole 46 and separates from the fixing plate 41. At this time, pulling the first support member 10 and the second support member 20 to move in opposite directions can separate the two.

[0112] In one implementation, the plug-in plate 42 can be connected to the second support member 20 via the connecting block 48. Specifically, the connecting block 48 is fixed to the second support member 20 and serves as a support structure for the plug-in plate 42. Both the connecting block 48 and the second support member 20 may be provided with through holes; the through holes allow the pressing block 45 to pass through, facilitating the user to control the sliding of the pressing block 45.

[0113] In one embodiment, the disassembly mechanism 40 further includes a third elastic member 47; the third elastic member 47 connects the fixing plate 41 and the pressing block 45, and the third elastic member 47 can provide the pressing block 45 with an elastic force to slide away from the sliding block 43 so as to push the pressing block 45 to reset.

[0114] In one embodiment, the disassembly mechanism 40 may include: two sliding blocks 43; two locking holes 46 provided on the fixing plate 41; and a second elastic member 44 disposed between the two sliding blocks 43.

[0115] Please see Figure 11 The second aspect of this application provides a flip-top assembly, including: a first support member 10, a second support member 20, and a resistance mechanism 30; the first support member 10 and the second support member 20 are rotatably connected; the resistance mechanism 30 includes: a locking block 34 and a fixing locking block 32; the fixing locking block 32 is disposed on the second support member 20; the locking block 34 is disposed on the first support member 10, and the locking block 34 abuts against the fixing locking block 32; when the first support member 10 and the second support member 20 are flipped relative to each other to a fully open state, the locking block 34 and the fixing locking block 32 engage.

[0116] As a further improvement, the card block 34 is connected with an elastic protrusion 35; the fixed card block 32 is provided with a card groove 36; when the first support member 10 and the second support member 20 are flipped relative to each other to be in a fully open state, the elastic protrusion 35 is inserted into the card groove 36.

[0117] In this embodiment, after being flipped, the card block 34 can engage with the fixed card block 32, thereby increasing the flipping resistance between the card block 34 and the fixed card block 32 and improving the stability of the card block 34 after flipping.

[0118] Please see Figure 10 and Figure 12The third aspect of this application provides a vacuum grain storage container, including: a vacuum component 50 and a flip-top component of any of the above; in the flip-top component, the first support member 10 is the cover and the second support member 20 is the container; the vacuum component 50 is disposed on the first support member 10 or the second support member 20.

[0119] In practical applications, in order to facilitate user control of the vacuum component 50, the vacuum component 50 can be mounted on the first support member 10, which serves as the cover.

[0120] Optionally, a sealing surface is provided at the top of the inner wall of the second support member 20; the sealing surface is an inclined surface with the normal direction tilted upward.

[0121] Specifically, vacuum food storage containers can be used to store pet food as well as human food. To better preserve the food, a sealing structure such as a sealing gasket is provided between the first support member 10 and the second support member 20.

[0122] Taking the sealing ring on the outer periphery of the first support member 10 as an example, when the first support member 10 covers the second support member 20, the sealing surface on the second support member 20 abuts against the sealing ring.

[0123] In existing vacuum grain storage bins, the sealing surface of the second support member 20 is generally a stepped surface to improve the sealing effect and limit the rotation stroke of the first support member 10. However, in this embodiment, the stepped surface is set as an inclined surface, which can prevent the grain that falls out of the vacuum grain storage bin from accumulating on the sealing surface and affecting the sealing performance when the grain is taken out.

[0124] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A flip cover assembly, characterized in that, include: First support member (10), second support member (20) and resistance mechanism (30); The first support member (10) and the second support member (20) are rotatably connected; The resistance mechanism (30) includes: an elastic locking block (31) and a fixed locking block (32); The fixing block (32) is disposed on the second support member (20); The elastic locking block (31) is disposed on the first support member (10) and abuts against the fixed locking block (32). During the process of the first support member (10) and the second support member (20) flipping in the opening direction, the elastic block (31) extends towards the fixed block (32).

2. The flip-cover assembly according to claim 1, characterized in that, The elastic block (31) includes: a sliding block (311) and a spring (312); The sliding block (311) is slidably disposed on the first support member (10) and abuts against the fixed block (32). One end of the spring (312) abuts against the first support member (10), and the other end abuts against the sliding block (311). During the process of the first support member (10) and the second support member (20) flipping in the opening direction, the sliding block (311) slides towards the fixed block (32) and the spring (312) extends towards the fixed block (32).

3. The flip-cover assembly according to claim 2, characterized in that, When the first support member (10) and the second support member (20) are flipped relative to each other to be in a fully open state, the elastic block (31) is located in the vertical direction of the fixed block (32), and the elastic block (31) pushes against the top or bottom surface of the fixed block (32).

4. The flip-cover assembly according to claim 3, characterized in that, The top or bottom surface of the fixed block (32) that abuts against the elastic block (31) is a plane.

5. The flip-cover assembly according to claim 2, characterized in that, The end face of the sliding block (311) that abuts against the fixed block (32) is an inclined surface (313). During the process of the first support member (10) and the second support member (20) flipping in the opening direction, the contact point between the inclined surface (313) and the fixed block (32) changes, so that the sliding block (311) slides closer to the fixed block (32).

6. The flip-cover assembly according to claim 2, characterized in that, The resistance mechanism (30) includes: a support base (33); The support base (33) is fixed to the first support member (10); The sliding block (311) is slidably disposed within the support base (33).

7. The flip-cover assembly according to claim 6, characterized in that, The support base (33) is provided with a first mounting groove (331); A protruding post (332) is provided in the first mounting groove (331); The sliding block (311) is provided with a second mounting groove (314); The spring (312) is sleeved on the protrusion (332) and extends into the second mounting groove (314).

8. The flip-cover assembly according to any one of claims 1 to 7, characterized in that, Also includes: Disassembly / reassembly mechanism (40); The disassembly and assembly mechanism (40) includes: a fixing plate (41) and a plug-in plate (42). The fixing plate (41) can be flipped to connect to the first support member (10). The plug plate (42) is fixedly connected to the second support member (20); The plug-in plate (42) is detachably connected to the fixing plate (41).

9. The flip-cover assembly according to claim 8, characterized in that, The disassembly mechanism (40) includes: a sliding block (43), a second elastic element (44), and a pressing block (45); The fixing plate (41) is provided with a lock hole (46). The sliding block (43) is slidably disposed on the plug-in plate (42); When the sliding block (43) is inserted into the lock hole (46), the plug plate (42) is engaged with the fixing plate (41); The second elastic element (44) is disposed on the plug plate (42) and is used to provide the sliding block (43) with an elastic force to slide in the direction of the lock hole (46); The pressing block (45) is slidably disposed on the plug plate (42); The pressing block (45) and the sliding block (43) are wedge-fitted so that when the pressing block (45) slides towards the sliding block (43), it drives the sliding block (43) to slide away from the lock hole (46).

10. The flip-cover assembly according to claim 9, characterized in that, The disassembly mechanism (40) includes: a third elastic element (47); The third elastic element (47) connects the fixing plate (41) and the pressing block (45).

11. The flip-cover assembly according to claim 9, characterized in that, The disassembly mechanism (40) includes two sliding blocks (43). The fixing plate (41) is provided with two lock holes (46). The second elastic element (44) is disposed between the two sliding blocks (43).

12. The flip-cover assembly according to claim 8, characterized in that, The fixing plate (41) is disposed on the fixing block (32), or the fixing plate (41) and the fixing block (32) are integrally disposed.

13. A flip cover assembly, characterized in that, include: First support member (10), second support member (20) and resistance mechanism (30); The first support member (10) and the second support member (20) are rotatably connected; The resistance mechanism (30) includes: a locking block (34) and a fixing block (32); The fixing block (32) is disposed on the second support member (20); The card block (34) is disposed on the first support member (10), and the card block (34) abuts against the fixed card block (32). When the first support member (10) and the second support member (20) are flipped relative to each other to be in a fully open state, the locking block (34) and the fixing block (32) engage.

14. The flip-top assembly according to claim 13, characterized in that, The card block (34) is connected to an elastic protrusion (35); The fixing block (32) is provided with a slot (36); When the first support member (10) and the second support member (20) are flipped relative to each other to be in a fully open state, the elastic protrusion (35) is engaged in the slot (36).

15. A vacuum grain storage bin, characterized in that, include: Vacuum assembly (50) and flip-top assembly as claimed in any one of claims 1 to 14; In the flip-top assembly, the first support member (10) is the cover body, and the second support member (20) is the container; The vacuum assembly (50) is disposed on the first support (10) or the second support (20).

16. The vacuum grain storage bin according to claim 15, characterized in that, The top of the inner wall of the second support member (20) is provided with a sealing surface; The sealing surface is an upward-sloping surface.

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