Blocking explosion-proof ball

Abstract

The utility model discloses a blocking explosion-proof ball which comprises a plurality of top vertical rib pieces and a plurality of bottom vertical rib pieces which extend in the radial direction, and a top center pipe, a top connecting ring, a middle ring piece, a bottom connecting ring and a bottom center pipe which are sequentially distributed at intervals in the axial direction. Each top vertical rib sheet is simultaneously connected with the top central pipe, the top connecting ring, the middle ring sheet and the bottom connecting ring; each bottom vertical rib sheet is simultaneously connected with the top connecting ring, the middle ring sheet, the bottom connecting ring and the bottom central pipe; and the plurality of top vertical rib sheets and the plurality of bottom vertical rib sheets are arranged in a staggered manner. According to the blocking explosion-proof ball provided by the utility model, the overall structural strength is ensured, and ejection after injection molding is facilitated; in addition, a semi-closed structure does not exist, so that bubbles are not easy to form when the anti-explosion device is placed in a flammable and explosive gas or liquid container, the influence on the volume of the container is small, and the blocking and anti-explosion effects are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof technology, and in particular to an explosion-proof ball. Background Technology

[0002] Explosion-proofing during the storage, transportation, and use of gasoline, diesel, liquefied petroleum gas, natural gas, and other liquid and gaseous hazardous chemicals (such as methane, benzene, and other chemical raw materials) has always been a major research topic in explosion-proofing worldwide.

[0003] Therefore, multiple explosion-proof spheres can be filled into a container of flammable and explosive liquids, dividing the container's interior into several "chambers" or "cavities." These "chambers" or "cavities" can effectively suppress flame propagation and rapidly attenuate the explosion pressure wave. Simultaneously, the explosion-proof spheres have high surface efficiency per unit volume, resulting in excellent heat absorption. They can quickly absorb the heat released during combustion, lowering the temperature after the combustion reaction, reducing the expansion of the reacting gases, and minimizing the pressure increase within the container, thus preventing the combustion rate from reaching the explosive limit. When the flammable and explosive liquid inside the container is about to explode due to impact, high temperature, gunfire, artillery fire, etc., the explosion-proof spheres can absorb and suppress the explosion energy, thereby eliminating the risk of explosion and achieving the purpose of explosion suppression.

[0004] Among them, the following key parameters are usually used for the explosion-proof ball: (1) Duty cycle: refers to the percentage of the actual volume of all the balls to the volume of the container when the container is filled with explosion-proof balls. This ratio should be as small as possible. The smaller the ratio, the smaller the reduction in container volume caused by the balls, and the more liquid or gas can be put in. That is, in principle, under the premise of meeting the explosion-proof effect, the smaller the volume of the explosion-proof ball, the less volume is consumed; (2) Specific surface area: refers to the total surface area of ​​the balls put into the container. The larger this area is, the better; (3) Transmittance at each angle: refers to the ratio of the area of ​​light transmission to the area of ​​the projected outline after the ball is projected at a certain angle. The smaller this ratio is, the better. The smaller the ratio is, the smaller the light transmission area is.

[0005] However, some traditional explosion-proof spheres have a semi-enclosed structure, which makes them prone to forming air bubbles when placed in containers of flammable and explosive liquids, thus affecting the amount of liquid and gas that can be contained in the container. Furthermore, to ensure structural strength, traditional spheres have relatively thick walls and a large overall volume, making ejection after injection molding more difficult. Therefore, it is necessary to provide a barrier explosion-proof sphere to overcome these shortcomings. Summary of the Invention

[0006] The purpose of this invention is to provide a barrier explosion-proof ball, which aims to improve the problems of traditional explosion-proof balls that are prone to forming air bubbles and have difficulty being ejected after injection molding. It does not have a semi-closed structure and has high overall structural strength, which is beneficial for ejection after injection molding.

[0007] To achieve the above objectives, this utility model provides a barrier explosion-proof ball, comprising: a plurality of top vertical ribs and a plurality of bottom vertical ribs extending radially, and a top central tube, a top connecting ring, a middle ring, a bottom connecting ring, and a bottom central tube arranged sequentially and at intervals along the axial direction; each of the top vertical ribs is simultaneously connected to the top central tube, the top connecting ring, the middle ring, and the bottom connecting ring; each of the bottom vertical ribs is simultaneously connected to the top connecting ring, the middle ring, the bottom connecting ring, and the bottom central tube; the vertical projections of the plurality of top vertical ribs relative to the plane where the middle ring is located and the vertical projections of the plurality of bottom vertical ribs relative to the plane where the middle ring is located are staggered.

[0008] In a preferred embodiment, the top center tube and the bottom center tube are coaxially arranged and symmetrically arranged with respect to the plane in which the intermediate ring plate is located.

[0009] In a preferred embodiment, the inner side of the top vertical rib is straight, and its two ends are respectively connected to the top central tube and the bottom central tube.

[0010] In a preferred embodiment, each of the top vertical ribs has a molding notch with an opening facing the bottom connecting ring; the molding notch includes a first side and a second side arranged opposite to each other, the angle between the first side and the second side is 2°-4°, and the intersection point formed by the straight lines extending from the two sides is located near the side of the top central tube.

[0011] In a preferred embodiment, the interior of the top central tube is provided with an injection-molded part.

[0012] In a preferred embodiment, the bottom upright rib is rounded inward at the connection between the bottom connecting ring and the bottom center tube, and a pin position is provided at the position corresponding to the bottom connecting ring.

[0013] In a preferred embodiment, a plurality of bottom reinforcing ribs are further provided between the bottom central tube and the bottom connecting ring; the vertical projections of the plurality of bottom reinforcing ribs relative to the plane where the middle ring plate is located are staggered with the vertical projections of the plurality of top vertical ribs relative to the plane where the middle ring plate is located.

[0014] In a preferred embodiment, a straight line passing through the center of both the top and bottom center tubes is defined as the central axis; the width direction of the intermediate ring is perpendicular to the central axis; the top connecting ring is arranged around the central axis and its width direction is parallel to the central axis; the bottom connecting ring is arranged around the central axis and its width direction is parallel to the central axis.

[0015] In a preferred embodiment, there are four top vertical ribs, which are respectively connected to the four quadrant points of the top central tube; there are four bottom vertical ribs, which are respectively located in the middle of two adjacent top vertical ribs.

[0016] In a preferred embodiment, the outer diameter of the barrier explosion-proof ball is 28mm-32mm, the thickness of the top vertical rib, the bottom vertical rib, the top central tube, the top connecting ring, the middle ring, and the bottom connecting ring is 0.3mm-0.5mm, the thickness of the bottom central tube is 1mm-1.2mm, and the width of the injection molded part is greater than or equal to 1.5mm.

[0017] The explosion-proof ball provided by this utility model, by staggering multiple top vertical ribs and multiple bottom vertical ribs, can connect the top central tube, top connecting ring, middle ring, bottom connecting ring, and bottom central tube, while ensuring the overall structural strength. It can significantly reduce the structural volume and is beneficial to mold design, making it easy to eject after injection molding. In addition, the overall structure of the explosion-proof ball does not have a semi-closed structure, so it is not easy to form bubbles when placed in flammable and explosive liquid or gas containers, which has little impact on the container volume and is conducive to the explosion-proof effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A perspective view of the explosion-proof barrier ball provided by this utility model;

[0020] Figure 2 for Figure 1 The front view of the explosion-proof sphere is shown below;

[0021] Figure 3 for Figure 2 The front view of the explosion-proof ball after it has been rotated 45° is shown.

[0022] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the explosion-proof sphere along the EE direction.

[0023] Figure 5 for Figure 3 The diagram shows a three-dimensional sectional view of the explosion-proof sphere along the EE direction.

[0024] Figure 6 for Figure 1 The diagram shows a top view of the explosion-proof sphere.

[0025] Figure 7 for Figure 1 The image shown is a bottom view of the explosion-proof sphere.

[0026] Figure 8 for Figure 6 The diagram shows a cross-sectional view of the explosion-proof sphere along the HH direction.

[0027] Figure 9 for Figure 6 The diagram shows a three-dimensional cross-sectional view of the explosion-proof sphere along the HH direction.

[0028] Figure 10 for Figure 6 The diagram shows a cross-sectional view of the blast-proof ball along the FF direction;

[0029] Figure 11 for Figure 6 The diagram shows a three-dimensional cross-sectional view of the explosion-proof ball along the FF direction.

[0030] The following are the labels in the diagram: 100, explosion-proof barrier ball; 101, central shaft; 102, rounded corner; 10, top vertical rib; 11, mold drawing notch; 111, first side; 112, second side; 20, bottom vertical rib; 21, ejector pin position; 30, top center tube; 31, injection molded part; 40, top connecting ring; 50, middle ring; 60, bottom connecting ring; 70, bottom center tube; 80, bottom reinforcing rib. Detailed Implementation

[0031] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0032] It should also be understood that 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. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0033] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0034] In an embodiment of this utility model, a barrier explosion-proof ball 100 is provided for filling a container of flammable and explosive liquids. When the flammable and explosive liquid in the container is about to explode due to impact, high temperature, gunshot, artillery fire, etc., it absorbs and suppresses the explosion energy, thereby eliminating the risk of explosion of the flammable and explosive liquid.

[0035] like Figures 1-11 As shown, the explosion-proof ball 100 includes: a plurality of top vertical ribs 10 and a plurality of bottom vertical ribs 20 extending radially, and a top central tube 30, a top connecting ring 40, a middle ring 50, a bottom connecting ring 60 and a bottom central tube 70 distributed sequentially and at intervals along the axial direction.

[0036] In this embodiment, the outer diameter of the explosion-proof ball 100 is 28mm-32mm, preferably 30mm, with an effective volume of less than 950mm³ and a surface area of ​​less than 3980mm². The top vertical rib 10 and the bottom vertical rib 20 are both arc-shaped pieces of equal thickness; the top central tube 30, the top connecting ring 40, the middle ring piece 50, the bottom connecting ring 60, and the bottom central tube 70 are all annular pieces of equal thickness and width. The thickness of the top vertical rib 10, the bottom vertical rib 20, the top central tube 30, the top connecting ring 40, the middle ring piece 50, and the bottom connecting ring 60 is all 0.3mm-0.5mm.

[0037] Furthermore, the top center tube 30 and the bottom center tube 70 are coaxially arranged and symmetrically arranged with respect to the plane in which the middle ring plate 50 is located.

[0038] Specifically, in this embodiment, the straight line passing through the center of both the top central tube 30 and the bottom central tube 70 is defined as the central axis 101. The width direction of the intermediate ring 50 is perpendicular to the central axis 101, that is, the plane containing the intermediate ring 50 is perpendicular to the normal of the central axis 101. The top connecting ring 40 is arranged around the central axis 101, and its width direction is parallel to the central axis 101 to form a cylindrical structure. Similarly, the bottom connecting ring 60 is arranged around the central axis 101, and its width direction is parallel to the central axis 101 to form a cylindrical structure.

[0039] In embodiments of this invention, each top vertical rib 10 is simultaneously connected to the top central tube 30, the top connecting ring 40, the middle ring 50, and the bottom connecting ring 60. Each bottom vertical rib 20 is simultaneously connected to the top connecting ring 40, the middle ring 50, the bottom connecting ring 60, and the bottom central tube 70. The vertical projections of the multiple top vertical ribs 10 relative to the plane where the middle ring 50 is located are staggered with the vertical projections of the multiple bottom vertical ribs 20 relative to the plane where the middle ring 50 is located.

[0040] For example, there are four top vertical ribs 10, one end of which is connected to one of the four quadrant points of the top central tube 30. There are four bottom vertical ribs 20, which are respectively located in the middle of each pair of adjacent top vertical ribs 10. That is, the four top vertical ribs 10 and the four bottom vertical ribs 20 together divide the surface of the explosion-proof ball 100 into eight uniform parts. Therefore, it can ensure the overall structural strength of the explosion-proof ball, which is beneficial for ejection after injection molding; and it can avoid the formation of local semi-closed structures, so that when placed in a container of flammable and explosive liquids, it is not easy to form bubbles, and the impact on the effective volume of the container is small, which is conducive to improving the explosion-proof effect.

[0041] Furthermore, in one embodiment, the inner side of the top vertical rib 10 is straight, and its two ends are respectively connected to the top central tube 30 and the bottom central tube 70, thereby further avoiding the formation of a semi-enclosed structure inside.

[0042] Among them, combined Figures 10-11 As shown, each top vertical rib 10 has a mold-drawing notch 11 with an opening facing the bottom connecting ring 60. The mold-drawing notch 11 includes a first side 111 and a second side 112 arranged opposite to each other. The included angle between the first side 111 and the second side 112 is 2°-4°, and the intersection point formed by the straight lines extending from the two sides is located on the side closer to the top center tube 30. This not only facilitates mold drawing but also reduces the actual volume of the sphere.

[0043] like Figure 1 , Figures 4-6 As shown, the top central tube 30 has an injection molded part 31 inside. In this embodiment, the injection molded part 31 is a cross-shaped injection molded part; however, in other embodiments, the injection molded part 31 can also be triangular. The four vertices of the injection molded part 31 are aligned with the four top vertical ribs 10. The top injection cross structure formed by the top central tube 30 and the injection molded part 31 can be used as a pouring gate during injection molding. Here, the width of the injection molded part 31 is greater than or equal to 1.5 mm, meaning that this area is locally thickened to increase strength and facilitate ejection after injection molding.

[0044] Furthermore, combined Figure 5 and Figure 7As shown, the bottom vertical rib 20 has an inwardly rounded corner 102 (rounded corner radius not less than 1mm) at the connection between the bottom connecting ring 60 and the bottom center tube 70, and an ejector pin position 21 is provided at the corresponding position of the bottom connecting ring 60. The ejector pin position 21 is circular with a diameter of approximately 1.2mm, facilitating ejection and demolding after injection molding. Meanwhile, the thickness of the bottom center tube 70 is set to 1mm-1.2mm, which can serve as the position for the ejector pin, i.e., local thickening at this position increases strength and facilitates ejection after injection molding.

[0045] In this embodiment, a plurality of bottom reinforcing ribs 80 are also provided between the bottom center tube 70 and the bottom connecting ring 60. The vertical projections of the plurality of bottom reinforcing ribs 80 relative to the plane where the middle ring piece 50 is located are staggered with the vertical projections of the plurality of top vertical ribs 10 relative to the plane where the middle ring piece 50 is located. That is, the bottom reinforcing ribs 80 are located between the bottom center tube 70 and the bottom connecting ring 60, connecting only the bottom center tube 70 and the bottom connecting ring 60, and the bottom reinforcing ribs 80 are offset from the top injection molded part 31 at a certain angle in the top view direction, which can effectively increase the bottom strength and help the ball to be ejected from the mold after injection molding.

[0046] In summary, the explosion-proof ball 100 provided by this utility model, by staggering multiple top vertical ribs 10 and multiple bottom vertical ribs 20, can connect the top central tube 30, top connecting ring 40, middle ring 50, bottom connecting ring 60, and bottom central tube 70, while ensuring the overall structural strength. It can significantly reduce the structural volume and is beneficial for mold design, making it easy to eject after injection molding. In addition, the overall structure of the explosion-proof ball 100 does not have a semi-closed structure, so it is not easy to form bubbles when placed in flammable and explosive liquid or gas containers, which has little impact on the container volume and is conducive to the explosion-proof effect.

[0047] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A barrier explosion-proof ball, characterized in that, include: The system comprises multiple top and bottom vertical ribs extending radially, and a top central tube, a top connecting ring, an intermediate ring, a bottom connecting ring, and a bottom central tube arranged sequentially and at intervals along the axial direction. Each top vertical rib is simultaneously connected to the top central tube, the top connecting ring, the intermediate ring, and the bottom connecting ring. Each bottom vertical rib is simultaneously connected to the top connecting ring, the intermediate ring, the bottom connecting ring, and the bottom central tube. The vertical projections of the multiple top vertical ribs relative to the plane of the intermediate ring and the vertical projections of the multiple bottom vertical ribs relative to the plane of the intermediate ring are staggered.

2. The explosion-proof barrier ball as described in claim 1, characterized in that, The top center tube and the bottom center tube are coaxially arranged and symmetrically arranged with respect to the plane in which the middle ring plate is located.

3. The explosion-proof barrier ball as described in claim 2, characterized in that, The inner side of the top vertical rib is straight, and its two ends are respectively connected to the top central tube and the bottom central tube.

4. The barrier explosion-proof ball as described in claim 3, characterized in that, Each of the top vertical ribs has a mold-drawing notch with an opening facing the bottom connecting ring; the mold-drawing notch includes a first side and a second side arranged opposite to each other, the angle between the first side and the second side is 2°-4°, and the intersection point formed by the straight lines extending from the two sides is located on the side closer to the top center tube.

5. The explosion-proof barrier ball as described in claim 4, characterized in that, The top central tube has an injection-molded component inside.

6. The barrier explosion-proof ball as described in claim 1, characterized in that, The bottom vertical rib is rounded inward at the connection between the bottom connecting ring and the bottom central tube, and a pin position is provided at the position corresponding to the bottom connecting ring.

7. The explosion-proof barrier ball as described in claim 1, characterized in that, Multiple bottom reinforcing ribs are provided between the bottom central tube and the bottom connecting ring; the vertical projections of the multiple bottom reinforcing ribs relative to the plane where the middle ring plate is located are staggered with the vertical projections of the multiple top vertical ribs relative to the plane where the middle ring plate is located.

8. The explosion-proof barrier ball as described in claim 1, characterized in that, The central axis is defined as the straight line passing through the center of both the top and bottom central tubes; the width direction of the middle ring is perpendicular to the central axis; the top connecting ring is arranged around the central axis and its width direction is parallel to the central axis; the bottom connecting ring is arranged around the central axis and its width direction is parallel to the central axis.

9. The explosion-proof barrier ball as described in claim 1, characterized in that, The number of top vertical ribs is four, and they are respectively connected to the four quadrant points of the top central tube; the number of bottom vertical ribs is four, and they are respectively located in the middle of two adjacent top vertical ribs.

10. The explosion-proof barrier ball as described in claim 5, characterized in that, The outer diameter of the explosion-proof ball is 28mm-32mm, the thickness of the top vertical rib, the bottom vertical rib, the top central tube, the top connecting ring, the middle ring, and the bottom connecting ring is 0.3mm-0.5mm, the thickness of the bottom central tube is 1mm-1.2mm, and the width of the injection molded part is greater than or equal to 1.5mm.

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