WO2015180615A1 - 一种非金属防爆球 - Google Patents

一种非金属防爆球 Download PDF

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Publication number
WO2015180615A1
WO2015180615A1 PCT/CN2015/079763 CN2015079763W WO2015180615A1 WO 2015180615 A1 WO2015180615 A1 WO 2015180615A1 CN 2015079763 W CN2015079763 W CN 2015079763W WO 2015180615 A1 WO2015180615 A1 WO 2015180615A1
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WO
WIPO (PCT)
Prior art keywords
ring
reinforcing sheet
equatorial
projection
piece
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PCT/CN2015/079763
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English (en)
French (fr)
Inventor
刘舜
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江苏科邦安全技术有限公司
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Publication of WO2015180615A1 publication Critical patent/WO2015180615A1/zh

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures

Definitions

  • the utility model relates to a non-metal explosion-proof ball.
  • inflammable and explosive liquids such as gasoline, liquefied gas and propane have been used more and more widely in daily production and life.
  • the above flammable explosive liquid (gas) body is stored in a fuel tank.
  • a fuel tank that is, a container for loading oil, specifically a device for storing fuel oil on a machine driven by a diesel engine or a gasoline engine.
  • the liquid level of the fuel tank is filled with a flammable mixed gas.
  • the fire source When there is a fire source, the fire source will ignite the adjacent mixed gas, and if the combustion of the mixed gas is not restricted, it will rapidly spread. Due to ignition and flame propagation, incremental pressure waves are generated in front of the flame front. The pressure waves compress the unburned mixture gas strongly, which will cause the fuel tank to explode, only a few milliseconds.
  • the alloy mesh explosion-proof material has the characteristics of good thermal conductivity, strong electrical conductivity and large specific surface area. After being fully distributed in the fuel tank, it can effectively suppress the propagation of the flame and abruptly attenuate the pressure wave of the explosion. At the same time, the alloy mesh explosion-proof material has high surface efficiency per unit volume, so that it has good heat absorption, can quickly absorb the heat released by the combustion, lower the temperature after the combustion reaction, and expand the reaction gas. As the degree is reduced, the pressure value in the container is not increased, so that the burning speed can not reach the limit speed of the explosion, thereby achieving the purpose of suppressing explosion.
  • alloy mesh explosion-proof material are metals such as aluminum and magnesium. Although they have certain corrosion resistance, there are problems of oxidation and aging. Once aging, it becomes brittle and forms debris. When it is vibrated, it will drop debris, pollute the oil or cause blockage to the oil pipeline. Therefore, alloy mesh explosion-proof Materials need to be replaced regularly, increasing costs and labor.
  • non-metallic balls are used as explosion-proof materials in the prior art.
  • various non-metallic explosion-proof balls in the prior art have complicated manufacturing processes and low efficiency.
  • the technical problem to be solved by the utility model is to provide a non-metallic explosion-proof ball for the problem that the non-metal explosion-proof ball manufacturing process is complicated and low in efficiency in the prior art.
  • a non-metallic explosion-proof ball comprising an equatorial ring, a longitude plate, an Antarctic ring and an Arctic ring; the equatorial ring and the longitude plate are arranged vertically; the Antarctic ring and the North Pole ring are respectively located on both sides of the equatorial ring; and the Antarctic ring is located One end of the longitude piece, the north pole ring is located at the other end of the longitude piece; the equatorial ring, the south pole ring, and the north pole ring are coaxial; along the axial direction of the equatorial ring, the projection of the south pole ring is located inside the projection of the equatorial ring; The projection of the north pole ring is located inside the projection of the south pole ring; the projection of the longitude slice extends from the projection of the north pole ring to the equatorial ring.
  • the non-metal explosion-proof ball provided by the utility model can be formed once in the axial direction of the equatorial ring, and the manufacturing process is simple and the efficiency is high. At the same time, the non-metallic explosion-proof ball is light in weight and small in volume occupation ratio.
  • the longitude piece has a plurality of, and the plurality of longitude pieces intersect at an axis of the equatorial ring.
  • a support piece is further fixed on the inner wall of the north pole ring.
  • the support piece has a "+" shape, and the plane of the support piece is perpendicular to the axis of the equatorial ring.
  • the non-metallic explosion-proof ball further includes a first reinforcing sheet; the first reinforcing sheet is disposed on a longitude piece between the north pole ring and the equatorial ring, and the first reinforcement is along an axial direction of the equatorial ring The projection of the slice is located between the projections of the Antarctic and Equatorial rings.
  • first reinforcing sheet is closed in a ring shape; and the first reinforcing sheet is parallel to an axis of the equatorial ring.
  • the non-metallic explosion-proof ball further includes a second reinforcing sheet; the second reinforcing sheet is disposed on the longitude piece between the south pole ring and the equatorial ring, and along the axial direction of the equatorial ring, the second reinforcement The projection of the patch is located between the projection of the south pole ring and the first stiffener.
  • the second reinforcing sheet has a closed loop shape, and the second reinforcing sheet is parallel to an axis of the equatorial ring.
  • a connecting piece is disposed between the second reinforcing piece and the outer wall of the south pole ring, and the connecting piece has a plane perpendicular to an axis of the equatorial ring.
  • the non-metallic explosion-proof ball further includes a third reinforcing sheet; the third reinforcing sheet is disposed on the equatorial ring along an axial direction of the equatorial ring, and one end of the third reinforcing piece is connected to the first reinforcement a sheet, the other end of the third reinforcing sheet is connected to the second reinforcing sheet; the projection of the third reinforcing sheet extends from the second reinforcing sheet to the equatorial ring along the axial direction of the equatorial ring; The plane bisects the angle formed by the two longitude sheets adjacent to the third reinforcing sheet.
  • the non-metallic explosion-proof ball having the above structure is used for the fuel tank, and under the premise of ensuring the compressive strength, the weight is lighter and the volume occupation ratio is smaller, and can reach 5% or less.
  • FIG. 1 is a top perspective view of a non-metallic explosion-proof ball provided in a preferred embodiment of the present invention
  • FIG. 2 is a bottom perspective view of a non-metallic explosion-proof ball provided in a preferred embodiment of the present invention
  • FIG. 3 is a transverse perspective view of a non-metallic explosion-proof ball provided in a preferred embodiment of the present invention.
  • Figure 4 is a front elevational view of a non-metallic explosion-proof ball provided in a preferred embodiment of the present invention.
  • Figure 5 is a rear elevational view of the non-metallic explosion-proof ball provided in a preferred embodiment of the present invention.
  • Figure 6 is a left side elevational view of the non-metallic explosion proof ball provided in a preferred embodiment of the present invention.
  • the “equator” is defined as the circle formed by the intersection of the plane passing through the sphere center in the horizontal direction and the sphere.
  • “Longitude” is defined as the circle formed by the intersection of the plane passing through the center of the sphere in the vertical direction and the spherical surface.
  • “Arctic” is defined as: the top of the sphere.
  • the non-metallic explosion-proof ball provided by the utility model comprises an equatorial ring, a longitude ring, an Antarctic ring and an Arctic ring; the equatorial ring and the longitude piece are vertically arranged; the Antarctic ring and the North Pole ring are respectively located on both sides of the equatorial ring; and the Antarctic ring Located at one end of the longitude piece, the north pole ring is located at the other end of the longitude piece; the equatorial ring, the south pole ring, and the north pole ring are coaxial; along the axial direction of the equatorial ring, the projection of the south pole ring is located inside the projection of the equatorial ring; The projection of the north pole ring is located inside the projection of the south pole ring; the projection of the longitude slice extends from the projection of the north pole ring to the equatorial ring.
  • non-metallic explosion-proof balls in the prior art In order to avoid the formation of oil accumulation at the intersection between the sheets, various non-metallic explosion-proof balls in the prior art generally open or hollow the corners formed between the sheets, however, the non-metallic explosion-proof balls of the structure It is very difficult to make in production, and it is necessary to open the mold from multiple directions. As a result, the manufacturing process of the non-metallic explosion-proof ball is complicated and the efficiency is low.
  • the non-metal explosion-proof ball provided by the utility model can be formed once in the axial direction of the equatorial ring, and the manufacturing process is simple, thereby greatly improving the production efficiency.
  • the non-metallic explosion-proof ball is light in weight and small in volume occupation ratio.
  • the longitude piece has a plurality of the longitude pieces in the The axis of the equatorial ring intersects.
  • a support piece is fixed to the inner wall of the north pole ring.
  • the north pole of the non-metallic explosion-proof ball can be ensured to have sufficient strength in the radial direction of the equatorial ring. Since the projection of the north pole ring is located inside the projection of the south pole ring along the axial direction of the equatorial ring, and the support piece is located inside the north pole ring, the arrangement of the north pole ring does not affect the non-metal explosion-proof ball provided by the present invention.
  • One molding process ensures the processing convenience and production efficiency of non-metallic explosion-proof balls.
  • the specific structure of the above support sheet is not particularly limited.
  • the support piece is in a "+" shape.
  • the four ends of the support piece extend to the inner wall of the north pole ring and are fixed.
  • the support sheet may be arranged in various manners.
  • the plane of the support sheet is preferably perpendicular to the axis of the equatorial ring.
  • the non-metallic explosion-proof ball further includes a first reinforcing sheet; the first reinforcing sheet is disposed on the longitude piece between the north pole ring and the equatorial ring, and along the In the axial direction of the equatorial ring, the projection of the first stiffener is located between the projections of the south pole ring and the equatorial ring.
  • the projection of the first reinforcing sheet along the axial direction of the equatorial ring is separated from the projection of the north pole ring and the equatorial ring, and the non-metallic explosion-proof ball can be smoothly formed at one time.
  • the first reinforcing sheet can effectively support the longitude sheet.
  • the specific structure may take various forms, and there is no particular limitation in the present invention.
  • the first reinforcing sheet is in a closed loop shape.
  • the first reinforcing sheet is parallel to the axis of the equatorial ring.
  • the non-metallic explosion-proof ball further includes a second reinforcing sheet.
  • the second reinforcing sheet is disposed on the longitude piece between the south pole ring and the equatorial ring, and along the axial direction of the equatorial ring, the projection of the second reinforcing sheet is located in the south pole ring and the first reinforcement Between the projections of the slices.
  • the shape of the second reinforcing sheet may take various existing shapes, and preferably, the second reinforcing sheet has a closed loop shape, and the second reinforcing sheet is parallel to the axis of the equatorial ring.
  • the projection of the second reinforcing sheet is located inside the projection of the first reinforcing sheet along the axial direction of the equatorial ring. It can be understood that the projection positions of the first reinforcing sheet and the second reinforcing sheet along the axial direction of the equatorial ring are interchangeable, for example, the projection of the first reinforcing sheet is located inside the projection of the second reinforcing sheet.
  • a connecting piece is disposed between the second reinforcing piece and the outer wall of the south pole ring, and the plane of the connecting piece and the equatorial ring The axis is vertical.
  • the non-metallic explosion-proof ball further includes a third reinforcing sheet; the third reinforcing sheet is disposed on the equatorial ring along the axial direction of the equatorial ring, and one end of the third reinforcing piece is connected to the first a reinforcing sheet, the other end of which is connected to the second reinforcing sheet; the projection of the third reinforcing sheet extends from the second reinforcing sheet to the equatorial ring along the axial direction of the equatorial ring; The plane of the slice is equally divided An angle formed by two longitude sheets adjacent to the third reinforcing sheet.
  • the third reinforcing sheet described above is very advantageous for further increasing the strength of the non-metallic explosion-proof ball.
  • the non-metallic explosion-proof ball includes an equatorial ring 1, two longitude pieces 2, an north pole ring 31, a support piece 32, an south pole ring 41, a connecting piece 42, a first reinforcing piece 5, and a second reinforcing piece 6. And 4 third reinforcing sheets 7.
  • the equatorial ring 1 has an annular shape and a hollow structure inside. Equatorial ring 1 level setting.
  • the center of the equatorial ring 1 is the center of the non-metallic explosion-proof ball.
  • the two longitude slices 2 intersect perpendicularly.
  • the two longitude pieces 2 intersecting perpendicularly are disposed on the equatorial ring 1, and the intersection of the two longitude pieces 2 coincides with the axis of the equatorial ring 1.
  • the top end of the longitude plate 2 is provided with a north pole ring 31.
  • the south end ring 41 is provided at the bottom end of the longitude plate 2.
  • the axes of the Arctic Ring 31, the South Pole Ring 41, and the Equatorial Ring 1 are collinear.
  • the support sheet 32 is generally in the shape of a "+". The four independent ends of the support piece 32 are attached to the inner wall of the north pole ring 31. The support sheets 32 are disposed along a horizontal plane.
  • the first reinforcing sheet 5 has a rectangular ring shape.
  • the first reinforcing sheet 5 is disposed on the two longitude sheets 2, and the first reinforcing sheet 5 is located between the north pole ring 31 and the equatorial ring 1.
  • the axis of the first reinforcing sheet 5 is collinear with the axis of the equatorial ring 1.
  • the second reinforcing sheet 6 has a rectangular ring shape.
  • the second reinforcing sheet 6 is disposed on the two longitude sheets 2, and the second reinforcing sheet 6 is located between the south pole ring 41 and the equatorial ring 1.
  • the axis of the second reinforcing sheet 6 is collinear with the axis of the equatorial ring 1.
  • the connecting piece 42 is disposed between the second reinforcing piece 6 and the south pole ring 41.
  • the third reinforcing sheet 7 is disposed on the equatorial ring 1 and the plane of the third reinforcing sheet 7 is on the axis of the equatorial ring 1. That is, the third reinforcing sheet 7 is perpendicular to the equatorial ring 1.
  • One ends of the four third reinforcing sheets 7 are respectively disposed on the top corners of the rectangular annular first reinforcing sheets 5, and the other ends are respectively disposed on the top corners of the rectangular annular second reinforcing sheets 6.
  • the plane of the third reinforcing sheet 7 bisects the angle formed by the two longitude sheets 2 adjacent to the third reinforcing sheet 7.
  • the projection of the equatorial ring 1 is annular.
  • the first reinforcing sheet 5 is projected in a rectangular shape, and the first reinforcing sheet 5 is projected in the projection of the equatorial ring 1.
  • the second reinforcing sheet 6 is also projected in a rectangular shape, and the second reinforcing sheet 6 is projected in the projection of the first reinforcing sheet 5.
  • the south pole ring 41 is projected in a circular shape and is located within the projection of the second reinforcing sheet 6. Since the connecting piece 42 is disposed between the second reinforcing piece 6 and the south pole ring 41, the connecting piece 42 is projected between the projection of the second reinforcing piece 6 and the projection of the south pole ring 41.
  • the north pole ring 31 is projected as a circle and is located within the projection of the south pole ring 41.
  • the support piece 32 is located inside the north pole ring 31, so the support piece 32 is projected within the projection of the north pole ring 31.
  • Both the longitude piece 2 and the four third reinforcing pieces 7 extend axially along the equatorial ring 1.
  • the two ends of the longitude film 2 are respectively connected to the outermost edge of the equatorial ring 1 projection and the projection of the north pole ring 31.
  • the two ends of the projection of the third reinforcing sheet 7 are respectively connected to the outermost edge of the projection of the equatorial ring 1 and the apex angle of the rectangular projection of the second reinforcing sheet 6.
  • the non-metal explosion-proof material provided by the utility model can be opened at one time, and the processing is convenient and the efficiency is high.
  • the above non-metal explosion-proof material is light in weight, the volume occupation ratio is less than 5%, and its strength is high, and the compression 1/3 strength is 136.2 kg. That is, the non-metal explosion-proof material has a very high weight while ensuring high strength, and is easy to process and high in efficiency.

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Abstract

一种非金属防爆球，包括赤道环（1）、经度片（2）、南极环（41）和北极环（31）；所述赤道环（1）和经度片（2）垂直设置；所述南极环（41）和北极环（31）分别位于赤道环（1）的两侧；并且南极环（41）位于经度片（2）的一端，北极环（31）位于经度片（2）的另一端；所述赤道环（1）、南极环（41）、北极环（31）同轴；沿所述赤道环（1）的轴向，所述南极环（41）的投影位于赤道环（1）的投影内部；所述北极环（31）的投影位于南极环（41）的投影内部；所述经度片（2）的投影从北极环（31）的投影延伸至赤道环（1）。所述的非金属防爆球制作工艺简单，生产效率高。

Description

一种非金属防爆球 技术领域
本实用新型涉及一种非金属防爆球。
背景技术
近年来随着国民经济的发展，汽油、液化气、丙烷等易燃易爆液(气)体在日常生产生活中应用越来越广泛。通常，上述易燃易爆液(气)体存储于燃油箱中。
燃油箱，即装油的容器，特指用柴油机或汽油机驱动的机器上储放燃料油的装置。
一般在燃油箱的液面上空间充满了可燃性混合气体，当存在火源时，火源会引燃其邻近的混合气体，若混合气体的燃烧不经限制会急速的扩散。由于点火和火焰传播，在火焰锋前面会产生递增的压力波，压力波强烈的压缩未燃混合气体，将导致油箱爆炸，整个过程只有几毫秒。
所以，在生产、运输、存储及使用过程中，由于安全措施不当或意外而经常引起燃烧和爆炸事故，往往造成重大的财产损失和人员伤亡。因此抑制危险化学品火灾爆炸就愈来愈引起人们的关注。
近年来各种防爆材料的出现有效解决了易燃易爆液(气)体在生产及储运过程中的安全性问题，其中合金网状防爆材料应用尤为广泛。
合金网状防爆材料具有导热性能好、导电性能强、比表面积大等特点，在充分分布于油箱后，可以有效地遏制火焰的传播，使燃爆压力波急剧衰减。同时这种合金网状防爆材料在单位容积内具有较高的表面效能，从而具有良好的吸热性，可以迅速地将燃烧释放出来的热量吸收，使燃烧反应后的温度降低，反应气体的膨胀程度缩小，容器内的压力值增高不大，使燃烧速度达不到爆炸的极限速度，从而达到抑爆的目的。
但是，合金网状防爆材料主要成分是铝、镁等金属，虽然它们具有一定的耐腐蚀性，但存在氧化和老化问题。一旦老化就会变脆，形成碎片，受到振动时会掉落碎屑，对油品造成污染或对输油管路造成堵塞。因此，合金网状防爆 材料需要定期更换，增加了成本和劳动力。
为克服上述问题，现有技术中采用非金属球作为防爆材料。然而，现有技术中的各种非金属防爆球制作工艺复杂，效率低。
实用新型内容
本实用新型所要解决的技术问题是针对现有技术中非金属防爆球制作工艺复杂、效率低的问题，提供一种非金属防爆球。
本实用新型解决上述技术问题所采用的技术方案如下：
提供一种非金属防爆球，包括赤道环、经度片、南极环和北极环；所述赤道环和经度片垂直设置；所述南极环和北极环分别位于赤道环的两侧；并且南极环位于经度片的一端，北极环位于经度片的另一端；所述赤道环、南极环、北极环同轴；沿所述赤道环的轴向，所述南极环的投影位于赤道环的投影内部；所述北极环的投影位于南极环的投影内部；所述经度片的投影从北极环的投影延伸至赤道环。
本实用新型提供的非金属防爆球沿赤道环的轴向开模即可一次成型，制作工艺简单，效率高。同时，该非金属防爆球重量轻，体积占用比小。
进一步的，所述经度片具有多个，所述多个经度片在所述赤道环的轴线处相交。
进一步的，所述北极环内壁上还固定有支撑片。
进一步的，所述支撑片呈“+”形，所述支撑片所在平面与所述赤道环的轴线垂直。
进一步的，所述非金属防爆球还包括第一加强片；所述第一加强片设置于北极环和赤道环之间的经度片上，并且沿所述赤道环的轴向，所述第一加强片的投影位于南极环和赤道环的投影之间。
进一步的，所述第一加强片为闭合环状；并且所述第一加强片与所述赤道环的轴线平行。
进一步的，所述非金属防爆球还包括第二加强片；所述第二加强片设置于南极环和赤道环之间的经度片上，并且沿所述赤道环的轴向，所述第二加强片的投影位于南极环和第一加强片的投影之间。
进一步的，所述第二加强片为闭合环状，所述第二加强片与所述赤道环的轴线平行。
进一步的，所述第二加强片和南极环外壁之间设置有连接片，所述连接片所在平面与所述赤道环的轴线垂直。
进一步的，所述非金属防爆球还包括第三加强片；所述第三加强片沿所述赤道环的轴向设置于赤道环上，并且所述第三加强片的一端连接至第一加强片，第三加强片的另一端连接至第二加强片；沿所述赤道环的轴向，所述第三加强片的投影从第二加强片延伸至赤道环；所述第三加强片所在平面平分与第三加强片相邻的两个经度片所形成的夹角。
具有上述结构的非金属防爆球用于油箱后，在保证压缩强度的前提下，重量更轻，体积占用比更小，可达到5％以下。
附图说明
图1是本实用新型优选实施方式中提供的非金属防爆球的顶部立体图；
图2是本实用新型优选实施方式中提供的非金属防爆球的底部立体图；
图3是本实用新型优选实施方式中提供的非金属防爆球的横向立体图；
图4是本实用新型优选实施方式中提供的非金属防爆球的主视图；
图5是本实用新型优选实施方式中提供的非金属防爆球的后视图；
图6是本实用新型优选实施方式中提供的非金属防爆球的左视图。
说明书附图中的附图标记如下：
1、赤道环；2、经度片；31、北极环；32、支撑片；41、南极环；42、连接片；5、第一加强片；6、第二加强片；7、第三加强片。
具体实施方式
为了使本实用新型所解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。
在本实用新型的描述中，相关术语定义如下：
“赤道”定义为：沿水平方向过球体球心的平面与球面相交所形成的圆。
“经度”定义为：沿竖直方向过球体球心的平面与球面相交所形成的圆。
“北极”定义为：球体顶部。
“南极”定义为：球体底部。
需要理解的是，上述术语、“经度”、“纬度”、“南极”、“北极”、“上”、“下”、 “竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。在本实用新型的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“设置”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本实用新型中的具体含义。
本实用新型提供的非金属防爆球包括赤道环、经度片、南极环和北极环；所述赤道环和经度片垂直设置；所述南极环和北极环分别位于赤道环的两侧；并且南极环位于经度片的一端，北极环位于经度片的另一端；所述赤道环、南极环、北极环同轴；沿所述赤道环的轴向，所述南极环的投影位于赤道环的投影内部；所述北极环的投影位于南极环的投影内部；所述经度片的投影从北极环的投影延伸至赤道环。
为避免在片与片之间的相交处形成积油，现有技术中的各种非金属防爆球通常将片与片之间形成的角落开孔或镂空，然而，该结构的非金属防爆球在制作时非常困难，需从多个方向开模方可。由此导致非金属防爆球的制作工艺复杂，并且效率低。本实用新型提供的非金属防爆球沿赤道环的轴向开模即可一次成型，制作工艺简单，大大提高了生产效率。
同时，该非金属防爆球重量轻，体积占用比小。
为保证非金属防爆球在赤道环的轴向上具有足够的强度，使其在使用时不出现坍塌等问题，优选情况下，所述经度片具有多个，所述多个经度片在所述赤道环的轴线处相交。
另一方面，优选情况下，所述北极环内壁上还固定有支撑片。此时可在赤道环径向上保证非金属防爆球的北极环具有足够的强度。由于沿所述赤道环的轴向，所述北极环的投影位于南极环的投影内部，而上述支撑片位于北极环内部，所以北极环的设置不会影响本实用新型提供的非金属防爆球的一次成型工艺，保证了非金属防爆球的加工便利性和生产效率。
对于上述支撑片，其具体结构没有特殊限制。优选情况下，为减少支撑片 与北极环相交处的积油，所述支撑片呈“+”形。支撑片的四个端部延伸至北极环的内壁并固定。
上述支撑片设置方式可以有多种，为便于加工，优选情况下，所述支撑片所在平面与所述赤道环的轴线垂直。
为进一步提高非金属防爆球的强度，优选情况下，所述非金属防爆球还包括第一加强片；所述第一加强片设置于北极环和赤道环之间的经度片上，并且沿所述赤道环的轴向，所述第一加强片的投影位于南极环和赤道环的投影之间。
上述第一加强片沿赤道环轴向的投影与北极环和赤道环的投影相分离，可保证该非金属防爆球可顺利一次成型。同时，该第一加强片可对经度片进行有效的支撑。
对于上述第一加强片，其具体结构可以采用各种形式，本实用新型中没有特殊限制。优选情况下，所述第一加强片为闭合环状。为便于更好的保证加强效果，利于后续加工，更优选所述第一加强片与所述赤道环的轴线平行。
根据本实用新型，为更进一步提高非金属防爆球的强度，优选情况下，所述非金属防爆球还包括第二加强片。
与第一加强片类似的，第二加强片设置于南极环和赤道环之间的经度片上，并且沿所述赤道环的轴向，所述第二加强片的投影位于南极环和第一加强片的投影之间。
同样，第二加强片的形状可采用现有的各种形状，优选情况下，所述第二加强片为闭合环状，所述第二加强片与所述赤道环的轴线平行。
对于上述第一加强片和第二加强片，沿所述赤道环的轴向，所述第二加强片的投影位于第一加强片的投影内部。可以理解的，上述第一加强片和第二加强片沿所述赤道环的轴向的投影位置可互换，如第一加强片的投影位于第二加强片的投影内部。
本实用新型中，为进一步提高非金属防爆球的稳定性和强度，优选情况下，所述第二加强片和南极环外壁之间设置有连接片，所述连接片所在平面与所述赤道环的轴线垂直。
根据本实用新型，所述非金属防爆球还包括第三加强片；所述第三加强片沿所述赤道环的轴向设置于赤道环上，并且所述第三加强片的一端连接至第一加强片，第三加强片的另一端连接至第二加强片；沿所述赤道环的轴向，所述第三加强片的投影从第二加强片延伸至赤道环；所述第三加强片所在平面平分 与第三加强片相邻的两个经度片所形成的夹角。
上述第三加强片对进一步提高非金属防爆球的强度非常有利。
下面结合图1-图6对本实用新型优选实施方式中提供的非金属防爆球的结构进行进一步说明。
参见图1-图6，该非金属防爆球包括赤道环1、两个经度片2、北极环31、支撑片32、南极环41、连接片42、第一加强片5、第二加强片6和4个第三加强片7。
具体的，赤道环1为圆环状，其内部为空心结构。赤道环1水平设置。赤道环1的圆心即为非金属防爆球的球心。
两个经度片2垂直相交。垂直相交的两个经度片2设置于赤道环1上，并且两个经度片2的交线与赤道环1的轴线重合。
经度片2的顶端设置有北极环31。经度片2的底端设置有南极环41。北极环31、南极环41、赤道环1三者的轴线共线。
支撑片32大体呈“+”形。支撑片32的四个独立的端部连接至北极环31的内壁上。支撑片32沿水平面设置。
第一加强片5呈矩形环状。第一加强片5设置于两个经度片2上，并且第一加强片5位于北极环31和赤道环1之间。第一加强片5的轴线与赤道环1的轴线共线。
第二加强片6呈矩形环状。第二加强片6设置于两个经度片2上，并且第二加强片6位于南极环41和赤道环1之间。第二加强片6的轴线与赤道环1的轴线共线。
连接片42设置于第二加强片6和南极环41之间。
第三加强片7设置于赤道环1上，并且第三加强片7所在平面过赤道环1的轴线。即，第三加强片7与赤道环1垂直。4个第三加强片7的一端分别设置于矩形环状第一加强片5的顶角上，另一端分别设置于矩形环状第二加强片6的顶角上。并且，第三加强片7所在平面平分与第三加强片7相邻的两个经度片2所形成的夹角。
同时，沿赤道环1轴向，赤道环1的投影为圆环状。
第一加强片5投影为矩形，第一加强片5投影位于赤道环1投影内。
同样，第二加强片6投影也为矩形，第二加强片6投影位于第一加强片5投影内。
南极环41投影为圆形，位于第二加强片6投影内。由于连接片42设置于第二加强片6和南极环41之间，所以，连接片42投影位于第二加强片6投影与南极环41投影之间。
北极环31投影为圆形，位于南极环41投影内。支撑片32位于北极环31内部，所以，支撑片32投影位于北极环31投影内。
两个经度片2和四个第三加强片7均沿赤道环1轴向延伸。沿赤道环1轴向，经度片2投影两端分别连接至赤道环1投影最外边缘和北极环31投影。第三加强片7投影两端分别连接至赤道环1投影最外边缘和第二加强片6矩形投影的顶角处。
本实用新型提供的非金属防爆材料可一次开模成型，加工方便，效率高。同时，上述非金属防爆材料重量轻，体积占用比小于5％，并且其强度高，压缩1/3强度为136.2kg。即，该非金属防爆材料在保证高强度的同时，重量非常轻，加工方便，效率高。
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型的保护范围之内。

Claims (10)

  1. 一种非金属防爆球，其特征在于，包括赤道环、经度片、南极环和北极环；
    所述赤道环和经度片垂直设置；所述南极环和北极环分别位于赤道环的两侧；并且南极环位于经度片的一端，北极环位于经度片的另一端；
    所述赤道环、南极环、北极环同轴；
    沿所述赤道环的轴向，所述南极环的投影位于赤道环的投影内部；所述北极环的投影位于南极环的投影内部；所述经度片的投影从北极环的投影延伸至赤道环。
  2. 根据权利要求1所述的非金属防爆球，其特征在于，所述经度片具有多个，所述多个经度片在所述赤道环的轴线处相交。
  3. 根据权利要求2所述的非金属防爆球，其特征在于，所述北极环内壁上还固定有支撑片。
  4. 根据权利要求3所述的非金属防爆球，其特征在于，所述支撑片呈“+”形，所述支撑片所在平面与所述赤道环的轴线垂直。
  5. 根据权利要求2-4中任意一项所述的非金属防爆球，其特征在于，所述非金属防爆球还包括第一加强片；
    所述第一加强片设置于北极环和赤道环之间的经度片上，并且沿所述赤道环的轴向，所述第一加强片的投影位于南极环和赤道环的投影之间。
  6. 根据权利要求5所述的非金属防爆球，其特征在于，所述第一加强片为闭合环状；并且所述第一加强片与所述赤道环的轴线平行。
  7. 根据权利要求6所述的非金属防爆球，其特征在于，所述非金属防爆球还包括第二加强片；
    所述第二加强片设置于南极环和赤道环之间的经度片上，并且沿所述赤道环的轴向，所述第二加强片的投影位于南极环和第一加强片的投影之间。
  8. 根据权利要求7所述的非金属防爆球，其特征在于，所述第二加强片为闭合环状，所述第二加强片与所述赤道环的轴线平行。
  9. 根据权利要求8所述的非金属防爆球，其特征在于，所述第二加强片和南极环外壁之间设置有连接片，所述连接片所在平面与所述赤道环的轴线垂直。
  10. 根据权利要求7-9中任意一项所述的非金属防爆球，其特征在于，所述非金属防爆球还包括第三加强片；
    所述第三加强片沿所述赤道环的轴向设置于赤道环上，并且所述第三加强片的一端连接至第一加强片，第三加强片的另一端连接至第二加强片；
    沿所述赤道环的轴向，所述第三加强片的投影从第二加强片延伸至赤道环；
    所述第三加强片所在平面平分与第三加强片相邻的两个经度片所形成的夹角。
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