Sealing structure of grain storage barrel and vacuum grain storage barrel thereof

Abstract

The sealing structure comprises a barrel body and a barrel cover covering an opening of the barrel body, a sealing ring is arranged between the barrel cover and the barrel body, a supporting piece is arranged on the opening of the barrel body, a containing groove is formed in the supporting piece, a rotating shaft is arranged in the containing groove, and the rotating shaft is connected with the barrel cover. The rotating shaft is movably connected with the barrel cover and can move up and down in the containing groove, and the rotating shaft capable of moving up and down is arranged in the supporting piece, so that when the barrel body is vacuumized, the sealing ring can deform more uniformly, and the sealing effect between the barrel body and the barrel cover is improved. And meanwhile, the barrel cover can be opened more conveniently when the vacuum is relieved.

Description

Technical Field

[0001] The utility model relates to the field of sealing structures, in particular to a sealing structure of a grain storage barrel and a vacuum grain storage barrel thereof. Background Art

[0002] The barrel body and barrel cover of existing vacuum grain storage barrels are usually connected by a rotating shaft, and a sealing ring is set between the two. When the inside of the barrel body is vacuumed, the barrel cover will move toward the barrel body under the action of the pressure difference between the inside and the outside, compressing the sealing ring, thereby ensuring the airtightness between the barrel body and the barrel cover.

[0003] However, in the above solution, due to the traditional rotating shaft structure between the barrel body and the barrel cover, when the barrel body is vacuumed, the barrel cover located near the rotating shaft cannot move toward the barrel body to compress the sealing ring, so the entire sealing ring cannot be evenly compressed, thereby affecting the airtightness between the barrel body and the barrel cover. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a sealing structure of a grain storage barrel, comprising a barrel body and a barrel cover covering the opening of the barrel body, a sealing ring is arranged between the barrel cover and the barrel body, a support frame is arranged on the opening of the barrel body, a receiving groove is arranged in the support frame, a rotating shaft is arranged in the receiving groove, the rotating shaft is movably connected to the barrel cover and can move up and down in the receiving groove, and an elastic member is arranged between the rotating shaft and the bottom of the receiving groove.

[0005] Furthermore, there are guide holes on both sides of the accommodating groove. The guide holes are in the shape of long strips and are vertically arranged opposite to each other. The rotating shaft passes through the guide holes and is movably connected to the barrel cover.

[0006] Furthermore, the elastic member includes an elastic bending portion and a supporting portion. When the elastic member is located in the accommodating groove, the supporting portion contacts the bottom of the accommodating groove, and the elastic bending portion contacts the rotating shaft.

[0007] Furthermore, the support portion is plate-shaped, and the number of the elastic bending portions is at least two.

[0008] Furthermore, a chamber is provided on the side wall of the barrel body, the support frame is located in the chamber, a spring is provided on the bottom of the support frame, and a through hole is provided on the side wall of the chamber.

[0009] Furthermore, limiting portions are vertically provided on both sides of the accommodating groove, and the rotating shaft is located between the limiting portions.

[0010] In addition, the present application also provides a vacuum grain storage barrel, including a barrel body and a barrel cover, wherein a vacuum pump and a battery box for providing power to the vacuum pump are arranged in the barrel cover.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The present invention provides a vertically movable shaft within the support frame, and a spring between the shaft and the support frame, thereby achieving a more uniform deformation of the sealing ring when the barrel is vacuumed, thereby improving the sealing effect between the barrel and the lid. Furthermore, the lid can be opened more conveniently when the vacuum is released. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the support frame of the present utility model;

[0016] Figure 3 This is a schematic structural diagram of the elastic member of the present utility model;

[0017] Figure 4 A cross-sectional view of the support frame of the present invention in a first working state;

[0018] Figure 5 It is a cross-sectional view of the support frame of the present invention in the second working state;

[0019] Figure 6 This is a schematic structural diagram of the barrel body of the present utility model;

[0020] Figure 7 It is a structural schematic diagram of the barrel cover of the present utility model.

[0021] The reference numerals and names in the figures are as follows:

[0022] Barrel body 100, barrel cover 200, sealing ring 110, support frame 300, accommodating groove 310, guide hole 311, rotating shaft 320, elastic member 330, elastic bending portion 331, supporting portion 332, chamber 120, spring piece 340, through hole 121, limiting portion 350, vacuum pump 400, battery box 500. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The present invention will be described in more detail. It should be understood that the specific embodiments described herein are intended only to explain the present invention and are not intended to limit the present invention. It should be noted that when an element is described as being "fixed to" another element, it may be directly on the other element, or one or more intervening elements may be present therebetween. When an element is described as being "connected to" another element, it may be directly connected to the other element, or one or more intervening elements may be present therebetween.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present invention, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] The preferred embodiment of the present invention will be further described with reference to the accompanying drawings. Figure 1 and Figure 2As shown, a sealing structure of a grain storage barrel includes a barrel body 100 and a barrel cover 200 covering the opening of the barrel body 100, a sealing ring 110 is arranged between the barrel cover 200 and the barrel body 100, a support frame 300 is arranged on the opening of the barrel body 100, a receiving groove 310 is arranged in the support frame 300, and guide holes 311 are provided on both sides of the receiving groove 310, the guide holes 311 are in the shape of long strips and are vertically arranged opposite to each other, a rotating shaft 320 is arranged in the receiving groove 310, the rotating shaft 320 passes through the guide hole 311 and is movably connected to the barrel cover 200, and an elastic member 330 is arranged between the rotating shaft 320 and the bottom of the receiving groove 310.

[0029] The support frame 300 is installed on the barrel body 100. Since the rotating shaft 320 passes through the guide hole 311 and is movably connected to the barrel cover 200, when the barrel cover 200 needs to be opened or closed, the barrel cover 200 and the support frame 300 are rotatably connected with the rotating shaft 320 as the axis. Moreover, since the guide hole 311 connecting the rotating shaft 320 and the support frame 300 is a vertically arranged strip, the rotating shaft 320 forms a virtual space in the guide hole 311 that can move up and down. Therefore, under normal circumstances, Figure 4 As shown, when the barrel cover 200 is closed on the barrel body 100 , the elastic member 330 acts as a support seat for the rotating shaft 320 , so that the rotating shaft 320 is located above the guide hole 311 .

[0030] like Figure 5 As shown, when the barrel body 100 is vacuumed, the barrel cover 200 presses the barrel body 100 inward due to the pressure difference between the inside and outside of the barrel body 100. At this time, the rotating shaft 320 moves downward along the guide hole 311, thereby squeezing the elastic member 330. As a result, the sealing ring 110 located near the support frame 300 is also deformed, so that the entire sealing ring 110 can be deformed more evenly, thereby improving the sealing effect between the barrel body 100 and the barrel cover 200. When the barrel body 100 is in a vacuum state, the elastic member 330 generates an upward elastic force on the rotating shaft 320 due to its reset, so that the sealing ring 110 located near the support frame 300 also recovers faster, making it easier to open the barrel cover 200. As can be seen from the above embodiment, the present application provides a vertically movable shaft 320 within the support frame 300, and a spring member is provided between the shaft 320 and the support frame 300. This allows the sealing ring 110 to deform more evenly when the barrel body 100 is vacuumed, thereby improving the sealing effect between the barrel body 100 and the lid 200. At the same time, the lid 200 can be opened more conveniently when the vacuum is released.

[0031] On the basis of the above embodiment, Figure 3As shown, the elastic member 330 includes an elastic bending portion 331 and a supporting portion 332. When the elastic member 330 is located in the accommodating groove 310, the supporting portion 332 is in contact with the bottom of the accommodating groove 310. In this way, when the elastic member 330 is compressed, the supporting portion 332 can support the bottom of the accommodating groove 310. The elastic bending portion 331 is in contact with the rotating shaft 320. When the rotating shaft 320 moves downward along the guide hole 311, the elastic bending portion 331 will deform, thereby generating elastic force.

[0032] In some embodiments, the support portion 332 is in the shape of a plate. Figure 3 As shown, the contact area with the bottom of the accommodating groove 310 is larger, which can provide better support. The number of the elastic bending parts 331 is at least 2, so that multi-point contact can be formed between the elastic bending parts 331 and the rotating shaft 320. When the rotating shaft 320 moves downward along the guide hole 311, the force on the elastic part 330 can be more uniform.

[0033] On the basis of the above embodiment, Figure 6 As shown, a chamber 120 is provided on the side wall of the barrel body 100, the support frame 300 is located in the chamber 120, a spring piece 340 is provided at the bottom of the support frame 300, and a through hole 121 is provided on the side wall of the chamber 120. When the support frame 300 is located in the chamber 120, the spring piece 340 can be embedded in the through hole 121 to be fixed. When the support frame 300 needs to be removed from the chamber 120, it is only necessary to press the spring piece 340 to remove it from the through hole 121.

[0034] On the basis of the above embodiment, Figure 2 As shown, limiting portions 350 are vertically provided on both sides of the accommodating groove 310 , and the rotating shaft 320 is located between the limiting portions 350 . The limiting portions 350 can further ensure that the rotating shaft 320 can move up and down in the guide hole 311 .

[0035] The present application also provides a vacuum grain storage barrel using the sealing structure of the grain storage barrel, such as Figure 7 As shown, it includes a barrel body 100 and a barrel cover 200, in which a vacuum pump 400 and a battery box 500 for providing power to the vacuum pump 400 are arranged. The barrel cover 200 is provided with a vacuum pump 400 for vacuuming, which is a prior art and will not be described in detail here.

[0036] When the barrel cover 200 covers the barrel body 100, the vacuum pump 400 is started to create a vacuum state inside the barrel body 100. At this time, the barrel cover 200 squeezes the barrel body 100 inward, and the rotating shaft 320 moves downward along the guide hole 311, thereby squeezing the elastic member 330. As a result, the sealing ring 110 located near the support frame 300 can also be deformed, so that the entire sealing ring 110 can be deformed more evenly, thereby improving the sealing effect between the barrel body 100 and the barrel cover 200.

[0037] The above exemplary embodiments are detailed, and the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included within the present invention.

Claims

1. A sealing structure for a grain storage barrel, comprising a barrel body (100) and a barrel cover (200) covering an opening of the barrel body (100), characterized in that: A sealing ring (110) is provided between the barrel cover (200) and the barrel body (100), a support frame (300) is provided on the opening of the barrel body (100), a receiving groove (310) is provided in the support frame (300), a rotating shaft (320) is provided in the receiving groove (310), the rotating shaft (320) is movably connected to the barrel cover (200) and can move up and down in the receiving groove (310), an elastic member (330) is provided between the rotating shaft (320) and the bottom of the receiving groove (310), and guide holes (311) are provided on both sides of the receiving groove (310), the guide holes (311) are in the shape of long strips and are vertically arranged opposite to each other, and the rotating shaft (320) passes through the guide holes (311) and is movably connected to the barrel cover (200).

2. The sealing structure of the grain storage barrel according to claim 1, characterized in that: The elastic member (330) comprises an elastic bending portion (331) and a supporting portion (332). When the elastic member (330) is located in the accommodating groove (310), the supporting portion (332) contacts the bottom of the accommodating groove (310), and the elastic bending portion (331) contacts the rotating shaft (320).

3. The sealing structure of the grain storage barrel according to claim 2, characterized in that: The support portion (332) is in a plate shape, and the number of the elastic bending portions (331) is at least two.

4. The sealing structure of the grain storage barrel according to claim 1, characterized in that: A chamber (120) is provided on the side wall of the barrel body (100), the support frame (300) is located in the chamber (120), a spring sheet (340) is provided at the bottom of the support frame (300), and a through hole (121) is provided on the side wall of the chamber (120).

5. The sealing structure of the grain storage barrel according to claim 1, characterized in that: Limiting portions (350) are vertically provided on both sides of the accommodating groove (310), and the rotating shaft (320) is located between the limiting portions (350).

6. A vacuum grain storage barrel, characterized in that: A sealing structure comprising a grain storage barrel according to any one of claims 1 to 5.

7. The vacuum grain storage barrel according to claim 6, characterized in that: The invention comprises a barrel body (100) and a barrel cover (200), wherein a vacuum pump (400) and a battery box (500) for providing power to the vacuum pump (400) are arranged in the barrel cover (200).

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