Negative pressure structure for grain storage tank

Abstract

The utility model discloses a kind of negative pressure structures for grain storage barrel, including the barrel body with open part and cover body assembly, the cover body assembly forms covering to the open part, so that the closed accommodating space is formed in the barrel body, the cover body assembly includes contact plate and pulling component, deformation body is configured on the contact plate, when the contact plate closes the open part, the pulling component is used to pull deformation body to the reverse recess of accommodating space, so that it forms additional space on contact plate, the additional space is interconnected with accommodating space. The present application does not need to pass through additional electric power, only needs to pass through the deformation body configured on the contact plate, then pass through pulling component and pull deformation body to form additional space communicated with accommodating space, so negative pressure will be formed in barrel body, so that barrel body and cover body assembly can be more tightly closed together, thereby effectively reducing energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of grain storage bins, and more specifically to a negative pressure structure for grain storage bins. Background Technology

[0002] Existing grain storage silos typically use vacuum pumps to create negative pressure inside the silo, resulting in a tighter connection between the lid and the silo body. However, whether externally powered or battery-powered, these silos rely on electricity to achieve their effect. They become unusable during power outages or in outdoor environments. Furthermore, installing vacuum pumps requires the design of appropriate valves and air passages, leading to high design and production costs. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a negative pressure structure for a grain storage bin, comprising a bin body with an open portion and a lid assembly. The lid assembly covers the open portion, creating a sealed receiving space within the bin body. The lid assembly includes a contact plate and a pulling component. The contact plate is located on one side of the lid assembly and is used to close the open portion. A deformable part is disposed on the contact plate. When the contact plate closes the open portion, the pulling component pulls the deformable part to recess it in the opposite direction of the receiving space, creating an additional space on the contact plate. This additional space is interconnected with the receiving space.

[0004] Furthermore, the deformable part includes a deformable portion and a connecting portion, the connecting portion being located around the deformable portion and fixedly connected to the contact plate, the deformable portion protruding toward the receiving space, and the pulling member having a driven end located on the side of the deformable portion away from the receiving space.

[0005] Furthermore, an inner shell is wrapped around the side of the deformable body facing the receiving space, and the inner shell is fixed to the contact plate. The additional space is formed by the deformable body and the inner shell, and a number of ventilation holes are provided on the inner shell.

[0006] Furthermore, the pulling component includes a first sliding member, a transmission line, and a pulling body. The driven end is located at one end of the transmission line, the other end of the transmission line is connected to the pulling body, and the first sliding member is located at the bottom of the transmission line.

[0007] Furthermore, the cover assembly includes an upper cover, the pull member is located between the upper cover and the contact plate, the first slider is a pulley, a first pivot passes through the middle of the first slider, the first slider is axially connected to the bottom of the upper cover through the first pivot, and the first slider is located above the deformed shape.

[0008] Furthermore, the pulling body is located at the edge of the contact plate, and the pulling body is axially connected to the contact plate via a second rotating shaft. A fixed rod capable of moving around the second rotating shaft is provided outside the second rotating shaft, and the fixed rod is connected to the transmission line.

[0009] Furthermore, the pulling body has a pawl extending outward, the fixing rod is fixed to the pawl, and the open portion has an extension portion that can cooperate with the pawl.

[0010] Furthermore, the pulling component includes a second slider located between the pulling body and the first slider, and the second slider is located at the bottom of the transmission line.

[0011] Furthermore, the first sliding member is a pulley, and a third pivot passes through the middle of the second sliding member, with the second sliding member connected to the bottom of the upper cover via the third pivot.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This application does not require additional electricity. It only requires configuring a deformable part on the contact plate and then pulling the deformable part to form an additional space communicating with the receiving space. This creates a negative pressure inside the barrel, allowing the barrel and lid assembly to fit together more tightly, thereby effectively reducing energy consumption.

[0013] Additional aspects and advantages of this invention will be set forth in the description which follows, and some will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the cover assembly of this utility model; Figure 3 This is a standard cross-sectional view of the present invention. Figure 4 This is a cross-sectional view of the present invention under negative pressure. Figure 5 This is a schematic diagram of the inner shell of this utility model; Figure 6This is a schematic diagram of the structure of the pulling component of this utility model; Figure 7 This is a simplified structural diagram of another form of the pulling component of this utility model.

[0016] The reference numerals and names in the figure are as follows: Opening 110, barrel 100, cover assembly 200, receiving space 300, contact plate 210, pulling component 220, deformable part 230, extra space 400, deformable part 231, connecting part 232, driven end 221, inner shell 240, vent 241, first sliding member 222, transmission line 223, pulling body 224, top cover 250, first rotating shaft 222a, second rotating shaft 224a, fixing rod 224b, latch 224c, extension 111, second sliding member 225, third rotating shaft 225a. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] The present invention will now be described in more detail. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0019] In the description of this utility model, it should be noted that directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom," indicating directions or positional relationships, are generally based on the directions or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. In the description of this utility model, it should be noted that the use of terms such as "first" and "second" to define components is merely for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0021] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0022] The preferred embodiments of this utility model will now be further described with reference to the accompanying drawings. Figure 1 , Figure 2 and Figure 3 As shown, a negative pressure structure for a grain storage hopper includes a hopper body 100 with an open portion 110 and a lid assembly 200. The lid assembly 200 covers the open portion 110, forming a sealed receiving space 300 inside the hopper body 100. The lid assembly 200 includes a contact plate 210 and a pulling member 220. The contact plate 210 is located on one side of the lid assembly 200 and is used to close the open portion 110. A deformable part 230 is disposed on the contact plate 210. When the contact plate 210 closes the open portion 110, the pulling member 220 is used to pull the deformable part 230 in the opposite direction of the receiving space 300, so that it forms an additional space 400 on the contact plate 210. The additional space 400 is in communication with the receiving space 300.

[0023] This application applies to the field of food storage containers, including pet food storage containers. Its main purpose is to create a negative pressure inside the container when the container body 100 and the lid assembly 200 are closed, allowing the container body 100 and the lid assembly 200 to fit together tightly. In specific implementation, this is combined with... Figure 3 and Figure 4 As shown, the food to be stored is first placed into the barrel 100 through the open part 110, and then the open part 110 is closed by the lid assembly 200, forming a sealed storage space 300 inside the barrel. Then, by operating the pulling part 220, the deformation part 230 on the contact plate 210 is recessed in the opposite direction of the storage space 300 to form an additional space 400. Since the additional space 400 is formed on the contact plate 210, the additional space 400 and the storage space 300 are interconnected. Since the air volume in the storage space 300 is constant, the addition of the additional space 400 to the storage space 300 is equivalent to expanding the overall space, thus creating a negative pressure inside the barrel 100, which allows the barrel 100 and the lid assembly 200 to be closed more tightly.

[0024] Compared with the prior art, this application does not require additional electricity. It only requires configuring the deformable part 230 on the contact plate 210, and then pulling the deformable part 230 through the pulling member 220 to form an additional space 400 communicating with the receiving space 300. Therefore, a negative pressure is formed in the barrel 100, which allows the barrel 100 and the lid assembly 200 to be closed more tightly, thereby effectively reducing energy consumption.

[0025] Furthermore, based on the above embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, the deformable part 230 includes a deformable portion 231 and a connecting portion 232. The connecting portion 232 is located around the deformable portion 231 and is fixedly connected to the contact plate 210. The deformable portion 231 protrudes towards the receiving space 300. The pulling member 220 has a driven end 221, which is located on the side of the deformable portion 231 away from the receiving space 300. Under normal conditions, when the cover assembly 200 closes the opening 110, the deformable portion 231 protrudes towards the receiving space 300. When the pulling member 220 is operated, it pulls the pulling deformable part 230 towards the receiving space 300 through the driven end 221, thereby forming a reverse recess towards the receiving space 300. Due to the protrusion and the recess, the additional space 400 is larger, thus creating a larger negative pressure within the barrel 100, thereby further improving the tightness of the lid.

[0026] It should be noted that the deformation-specific deformation part 231 in the above embodiments changes from a normal state to a concave state, including but not limited to changing from a planar state to a concave state, and may also include changing from a convex state to a concave state. Therefore, the material of the deformation part 231 can be a colloid, or a sheet with a certain elasticity and poor air permeability. It should be understood that any material that can meet the above deformation characteristics is protected under this application.

[0027] Furthermore, based on the above embodiments, combined with Figure 3 , Figure 4 and Figure 5 As shown, an inner shell 240 is wrapped around the side of the deformable part 230 facing the receiving space 300. The inner shell 240 is fixed to the contact plate 210. The extra space 400 is composed of the deformable part 230 and the inner shell 240. Several ventilation holes 241 are provided on the inner shell 240. The inner shell 240 protects the side of the deformable part 230 facing the receiving space 300. The material of the deformable part 231 is usually a gel, which can prevent damage to the deformable part 231 when the barrel 100 is placed against a relatively hard object.

[0028] Furthermore, based on the above embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, the pulling component 220 includes a first sliding member 222, a transmission line 223, and a pulling body 224. The driven end 221 is located at one end of the transmission line 223, and the other end of the transmission line 223 is connected to the pulling body 224. The first sliding member 222 is located at the bottom of the transmission line 223. When the deformable part 230 needs to be pulled, the pulling body 224 is moved outward, causing its transmission line 223 to move along the first sliding member 222. This, in turn, pulls the deformable part 230 towards the receiving space 300 via the driven end 221.

[0029] Furthermore, based on the above embodiments, combined with Figure 2 and Figure 6 As shown, the cover assembly 200 includes an upper cover 250, a pulling member 220 located between the upper cover 250 and the contact plate 210, a first sliding member 222 being a pulley, and a first rotating shaft 222a passing through the middle of the first sliding member 222. The first sliding member 222 is axially connected to the bottom of the upper cover 250 via the first rotating shaft 222a, and is located above the deformable part 230. Thus, when the pulling deformable part 230 is pulled through the driven end 221, it can be pulled vertically, resulting in a better deformation effect of the deformable part 231.

[0030] Furthermore, based on the above embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, the pulling body 224 is located at the edge of the contact plate 210. The pulling body 224 is axially connected to the contact plate 210 via a second rotating shaft 224a. A fixed rod 224b, which can move around the second rotating shaft 224a, is provided outside the second rotating shaft 224a. The fixed rod 224b is connected to the transmission line 223. When the fixed rod 224b is pulled, its transmission line 223 moves on the first sliding member 222, thereby pulling the pulling deformation form 230 in the opposite direction toward the receiving space 300 via the driven end 221.

[0031] Furthermore, based on the above embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, a latch 224c extends outward from the pulling body 224, and a fixing rod 224b is fixed to the latch 224c. An extension 111 that can engage with the latch 224c is provided on the open portion 110. When the fixing rod 224b is pulled, it moves around the second rotating shaft 224a. When the deformable part 230 is pulled in the opposite direction toward the receiving space 300 via the transmission line 223, the latch 224c can also engage with the extension 111. This allows the user to create negative pressure inside the bucket 100 while closing the lid assembly 200 onto the bucket 100, thereby achieving a better tightness between the lid assembly 200 and the bucket 100. In this state, the pulling body 224 functions not only as an operating element for pulling the deformable part 230 to deform, but also as an operating element for engaging the bucket 100 and the lid assembly 200.

[0032] Furthermore, based on the above embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, the pulling component 220 includes a second sliding member 225, which is located between the pulling body 224 and the first sliding member 222, and is situated at the bottom of the transmission line 223. When the deformable part 230 needs to be pulled, the pulling body 224 is moved outward, causing the transmission line 223 to move along the first sliding member 222 and the second sliding member 225. The second sliding member 225 can better guide the transmission line 223 during movement. Simultaneously, when the fixed rod 224b pulls the transmission line 223, the transmission line 223 can also be wound around the first sliding member 222.

[0033] Furthermore, based on the above embodiments, combined with Figure 3 , Figure 4 and Figure 6 As shown, the first sliding member 222 is a pulley, and the middle part of the second sliding member 225 has a third rotating shaft 225a passing through it. The second sliding member 225 is axially connected to the bottom of the upper cover 250 through the third rotating shaft 225a. This allows the second sliding member 225 to be suspended at the bottom of the upper cover 250.

[0034] Figure 7 In another configuration of the pulling component 220 described herein, the first rotating shaft 222a, the second rotating shaft 224a, and the third rotating shaft 225a are on the same horizontal plane. Thus, when the pulling body 224 is moved outward, causing its transmission line 223 to move on the first sliding member 222 and the second sliding member 225, the transmission line 223 can be wound in the opposite direction around the third rotating shaft 225a, thereby making the winding of the transmission line 223 and the third rotating shaft 225a more tight.

[0035] The details of the above exemplary embodiments are provided, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A negative pressure structure for grain storage bins, characterized in that, The device includes a barrel (100) having an opening (110) and a lid assembly (200) that covers the opening (110) to form a sealed receiving space (300) inside the barrel (100). The lid assembly (200) includes a contact plate (210) and a pull member (220). A deformable part (230) is disposed on the contact plate (210). When the contact plate (210) closes the opening (110), the pull member (220) pulls the deformable part (230) toward a reverse recess in the receiving space (300) to form an additional space (400) on the contact plate (210), which is in communication with the receiving space (300).

2. The negative pressure structure for grain storage bins according to claim 1, characterized in that, The deformable part (230) includes a deformable part (231) and a connecting part (232), the connecting part (232) being located around the deformable part (231) and fixedly connected to the contact plate (210), the deformable part (231) protruding toward the receiving space (300), and the pulling member (220) having a driven end (221) located on the side of the deformable part (231) away from the receiving space (300).

3. The negative pressure structure for grain storage bins according to any one of claims 1 or 2, characterized in that, An inner shell (240) is wrapped around the side of the deformable body (230) facing the receiving space (300), and the inner shell (240) is fixed on the contact plate (210). The extra space (400) is composed of the deformable body (230) and the inner shell (240), and a plurality of ventilation holes (241) are provided on the inner shell (240).

4. The negative pressure structure for grain storage bins according to claim 2, characterized in that, The pulling component (220) includes a first sliding member (222), a transmission line (223), and a pulling body (224). The driven end (221) is located at one end of the transmission line (223), and the other end of the transmission line (223) is connected to the pulling body (224). The first sliding member (222) is located at the bottom of the transmission line (223).

5. The negative pressure structure for grain storage bins according to claim 4, characterized in that, The cover assembly (200) includes an upper cover (250), the pull member (220) is located between the upper cover (250) and the contact plate (210), the first slider (222) is a pulley, the middle of the first slider (222) is through a first pivot (222a), the first slider (222) is axially connected to the bottom of the upper cover (250) through the first pivot (222a), and the first slider (222) is located above the deformable part (230).

6. The negative pressure structure for grain storage bins according to claim 5, characterized in that, The pulling body (224) is located at the edge of the contact plate (210). The pulling body (224) is axially connected to the contact plate (210) via a second rotating shaft (224a). A fixed rod (224b) capable of moving around the second rotating shaft (224a) is provided outside the second rotating shaft (224a). The fixed rod (224b) is connected to the transmission line (223).

7. The negative pressure structure for grain storage bins according to claim 6, characterized in that, The pulling body (224) has a pawl (224c) extending outward, the fixing rod (224b) is fixed on the pawl (224c), and the open part (110) has an extension part (111) that can cooperate with the pawl (224c).

8. The negative pressure structure for grain storage bins according to claim 5, characterized in that, The pulling component (220) includes a second slider (225) located between the pulling body (224) and the first slider (222), and the second slider (225) is located at the bottom of the transmission line (223).

9. The negative pressure structure for grain storage bins according to claim 6, characterized in that, The first sliding member (222) is a pulley, and the middle part of the second sliding member (225) has a third rotating shaft (225a) passing through it. The second sliding member (225) is connected to the bottom of the upper cover (250) through the third rotating shaft (225a).

10. The negative pressure structure for grain storage bins according to claim 9, characterized in that, The first rotating shaft (222a), the second rotating shaft (224a), and the third rotating shaft (225a) are on the same horizontal plane.

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