阅读说明：本技术 一种丁腈橡胶密封件 (Nitrile rubber sealing element ) 是由 吕晓刚 吴喜林 窦飞朋 王化勇 于 2020-11-25 设计创作，主要内容包括：本发明公开了一种丁腈橡胶密封件,其技术方案是：包括密封圈、耳挂和密封组件,所述密封圈外壁固定连接耳挂,所述耳挂绕密封圈中心位置阵列分布,所述耳挂设有六组,所述密封圈内壁固定安装密封组件,所述密封圈包括壳体,所述壳体设置为柔性材质,所述壳体外壁均匀喷涂脱模剂,所述壳体顶部外侧边缘位置设有密封棱一,所述壳体顶部内侧边缘位置设有密封棱二,所述壳体顶部开设密封槽,所述密封槽位于密封棱一和密封棱二之间,本发明有益效果是：在丁晴橡胶密封圈内部内壁固定安装填充板一,配合氯化聚乙烯橡胶使用,在对密封圈进行密封对接时,利用螺栓安装时管道对接时对氯化聚乙烯橡胶挤压提高了密封效果。(The invention discloses a nitrile rubber sealing element, which adopts the technical scheme that: the novel ear hook comprises a sealing ring, an ear hook and a sealing assembly, wherein the outer wall of the sealing ring is fixedly connected with the ear hook, the ear hook is distributed in an array mode around the center of the sealing ring, six groups of ear hooks are arranged on the ear hook, the sealing assembly is fixedly installed on the inner wall of the sealing ring, the sealing ring comprises a shell, the shell is made of flexible materials, a release agent is uniformly sprayed on the outer wall of the shell, a first sealing edge is arranged at the edge position of the outer side of the top of the shell, a second sealing edge is arranged at the edge position of the inner side of the top of the shell, a sealing groove is formed in the top: the first filling plate is fixedly installed on the inner wall of the interior of the nitrile rubber sealing ring and used in cooperation with chlorinated polyethylene rubber, and when the sealing ring is in sealing butt joint, the chlorinated polyethylene rubber is extruded when a pipeline is in butt joint when bolts are used for installation, so that the sealing effect is improved.)

1. A nitrile rubber seal comprising a seal ring (100), an ear hook (200) and a seal assembly (300), characterized in that: the utility model provides a sealing ring (100) outer wall fixed connection ear-hang (200), ear-hang (200) are put the array around sealing ring (100) central point and are distributed, ear-hang (200) are equipped with six groups, sealing ring (100) inner wall fixed mounting seal assembly (300), sealing ring (100) include casing (110), casing (110) set up to flexible material, casing (110) outer wall evenly spray release agent (111), casing (110) top outside edge position is equipped with sealed arris (112), casing (110) top inside edge position is equipped with sealed arris two (113), seal groove (114) are seted up at casing (110) top, seal groove (114) are located between sealed arris (112) and sealed arris two (113), casing (110) inner wall central point is equipped with density ring (115), density ring (115) with sealing ring (100) are through butadiene acrylonitrile rubber vulcanization technology production and are integrated structure, the thickness of the density ring (115) is not less than 2 mm.

2. A nitrile rubber seal according to claim 1, wherein: the ear-hang ring is characterized in that the ear-hang ring (200) is circular, the ear-hang ring (200) and the outer wall of the sealing ring (100) are of an integrated structure, a gasket groove (210) is formed in the top of the ear-hang ring (200), and the gasket groove (210) is annular.

3. A nitrile rubber seal according to claim 2, wherein: the central point of the top of the ear hanger (200) is provided with a screw hole (220), the screw hole (220) runs through the upper surface and the lower surface of the ear hanger (200), the top of the gasket groove (210) is sleeved with a gasket (230), the surface of the gasket (230) is provided with a through hole (231), and the through hole (231) is in a fine irregular hole shape.

4. A nitrile rubber seal according to claim 3, wherein: the top and the bottom of the ear hook (200) are configured identically, and two groups of gasket grooves (210), screw holes (220) and gaskets (230) are arranged in an up-down symmetrical mode relative to the sealing ring (100).

5. A nitrile rubber seal according to claim 1, wherein: the sealing assembly (300) comprises chlorinated polyethylene rubber (310), the chlorinated polyethylene rubber (310) is set to be in a normal state powder shape, the chlorinated polyethylene rubber (310) is filled in a cavity in the inner wall of the shell (110), and a first filling plate (320) is arranged at the bottom of the chlorinated polyethylene rubber (310).

6. A nitrile rubber seal according to claim 5, wherein: the shape of the first filling plate (320) is consistent with that of the sealing ring (100), two groups of the first filling plates (320) are arranged, and the two groups of the first filling plates (320) are vertically symmetrically and fixedly installed at the top and the bottom of the density ring (115).

7. A nitrile rubber seal according to claim 6, wherein: the surface of the first filling plate (320) is provided with a first special-shaped hole (321), and the first filling plate (320) has the stress deformation performance.

8. A nitrile rubber seal according to claim 1, wherein: the sealing assembly (300) further comprises two groups of filling plates (330), the two groups of filling plates (330) are vertically symmetrically and fixedly mounted at the top and the bottom of the density ring (115), the surface of each filling plate (330) is provided with a second special-shaped hole (331), and the second filling plate (330) has the stress deformation performance.

Technical Field

The invention relates to the technical field of high polymer materials, in particular to a nitrile rubber sealing element.

Background

The soft sealing element is a flexible element with excellent performance in a modern industrial pipeline, is used for preventing fluid or solid particles from leaking from adjacent joint surfaces and preventing external impurities such as dust, moisture and the like from entering materials or parts of parts inside machine equipment, although the rubber plastic sealing element is small, the rubber plastic sealing element has the function of making the rubber plastic sealing element become basic parts and accessories in national economy main industries such as national defense, chemical engineering, petroleum, coal, transportation, mechanical manufacturing and the like, and plays a very important role in national economy development, the nitrile rubber is prepared from butadiene and acrylonitrile by an emulsion polymerization method, the nitrile rubber is mainly produced by a low-temperature emulsion polymerization method, has excellent oil resistance, higher wear resistance, better heat resistance and strong bonding force, is mainly used for manufacturing oil-resistant rubber products, namely NBR, and is a synthetic rubber prepared by copolymerizing butadiene and acrylonitrile, the nitrile butadiene rubber is synthetic rubber with good oil resistance and aging resistance, and is suitable for producing rubber sealing elements due to excellent physical and chemical properties, and the sealing effect is good.

The prior art has the following defects: the existing nitrile rubber has a single structure, and is usually produced by adding additives and the like into the nitrile rubber as a main raw material, and the sealing element prepared by the method has the advantages of high aging speed, low toughness and poor mechanical property, and is easy to damage in the using process, so that the actual service life of the sealing ring is influenced, and the sealing effect is influenced.

Therefore, it is necessary to develop a nitrile rubber sealing member.

Disclosure of Invention

Therefore, the invention provides a nitrile rubber sealing element, which is characterized in that a density ring is arranged in a butadiene rubber sealing ring, the sealing ring is divided into an upper part and a lower part, a first filling plate is fixedly arranged on the inner wall of the butadiene rubber sealing ring and used in cooperation with chlorinated polyethylene rubber, and when the sealing ring is in sealed butt joint, chlorinated polyethylene rubber is extruded and the first filling plate is deformed when a bolt is installed, so that the problem of improving the sealing effect of the sealing ring is solved.

In order to achieve the above purpose, the invention provides the following technical scheme: including sealing washer, ear-hang and seal assembly, sealing washer outer wall fixed connection ear-hang, the ear-hang is put the array distribution around sealing washer central point, the ear-hang is equipped with six groups, sealing washer inner wall fixed mounting seal assembly, the sealing washer includes the casing, the casing sets up to flexible material, the even spraying release agent of casing outer wall, casing top outside edge position is equipped with sealed arris one, the inboard edge position in casing top is equipped with sealed arris two, the seal groove is seted up at the casing top, the seal groove is located between sealed arris one and the sealed arris two, casing inner wall central point puts and is equipped with the density ring, the density ring with the sealing washer is through the production of the fine rubber vulcanization technology as an organic whole structure of butyl, density ring thickness is not less than 2 millimeters.

Preferably, the ear-hang is set to be circular, the ear-hang and the outer wall of the sealing ring are of an integrated structure, a gasket groove is formed in the top of the ear-hang, and the gasket groove is annular.

Preferably, the central position of the top of the ear hanger is provided with a screw hole, the screw hole penetrates through the upper surface and the lower surface of the ear hanger, the top of the gasket groove is sleeved with a gasket, the surface of the gasket is provided with a through hole, and the through hole is in a fine irregular hole shape.

Preferably, the configuration of the top and the bottom of the ear hook is the same, and two groups of gasket grooves, screw holes and gaskets are arranged in an up-down symmetrical mode relative to the sealing ring.

Preferably, the sealing component comprises chlorinated polyethylene rubber, the chlorinated polyethylene rubber is set to be in a normal state powder shape, the chlorinated polyethylene rubber is filled in a cavity in the inner wall of the shell, and a first filling plate is arranged at the bottom of the chlorinated polyethylene rubber.

Preferably, the shape of the first filling plate is consistent with that of the sealing ring, the first filling plate is provided with two groups, and the two groups of the first filling plate are vertically and symmetrically fixedly installed at the top and the bottom of the density ring.

Preferably, the first special-shaped hole is formed in the surface of the first filling plate, and the first filling plate has the performance of being deformed under stress.

Preferably, the sealing assembly further comprises two groups of filling plates, the two groups of filling plates are vertically and symmetrically fixedly mounted at the top and the bottom of the density ring, the second special-shaped holes are formed in the surfaces of the two groups of filling plates, and the two groups of filling plates have the performance of being deformed under stress.

The invention has the beneficial effects that:

1. the sealing ring is divided into an upper part and a lower part by arranging the density ring inside the butadiene rubber sealing ring, the inner wall inside the butadiene rubber sealing ring is fixedly provided with the first filling plate which is used in cooperation with chlorinated polyethylene rubber, when the sealing ring is subjected to sealing butt joint, chlorinated polyethylene rubber is extruded when a pipeline is in butt joint when a bolt is used for mounting, and the chlorinated polyethylene rubber is powdery at normal temperature and has good flowability, so that the chlorinated polyethylene rubber can flow into a sealing gap for filling when being extruded by external force, and the sealing effect is improved;

2. through setting up the packing plate one, regard as the preparation material with metal aluminium, when sealing up the pipeline, because metal aluminium itself has certain toughness, the convenience is fixed the sealing washer, when extrudeing metal aluminium simultaneously, if there is the seal clearance, can compensate the packing to clearance department through the deformation of metal aluminium self, make sealed effect better, make the sealing washer combine rubber seal and metal seal's advantage, effectively improve sealing performance and improved the durability of sealing washer.

Drawings

FIG. 1 is a top view of a housing provided by the present invention;

FIG. 2 is a schematic view of a housing structure provided by the present invention;

FIG. 3 is a cross-sectional view of a housing and seal assembly provided by the present invention;

FIG. 4 is a side view of a seal ring provided by the present invention;

FIG. 5 is a top view of the infill panel provided in accordance with the present invention;

fig. 6 is a top view of a filler board according to example 2 of the present invention.

In the figure: the sealing ring 100, the housing 110, the release agent 111, the first sealing rib 112, the second sealing rib 113, the sealing groove 114, the density ring 115, the ear hook 200, the gasket groove 210, the screw hole 220, the gasket 230, the through hole 231, the sealing element 300, the chlorinated polyethylene rubber 310, the first filling plate 320, the first profiled hole 321, the second filling plate 330, and the second profiled hole 331.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example 1:

referring to fig. 1-5, the present invention provides a nitrile rubber seal comprising a seal ring 100, the sealing ring 100 comprises a shell 110, the shell 110 is made of flexible materials, a release agent 111 is uniformly sprayed on the outer wall of the shell 110, a first sealing edge 112 is arranged at the outer edge of the top of the shell 110, a second sealing edge 113 is arranged at the inner edge of the top of the shell 110, a sealing groove 114 is formed in the top of the shell 110, the sealing groove 114 is located between the first sealing edge 112 and the second sealing edge 113, a density ring 115 is arranged at the central position of the inner wall of the shell 110, the density ring 115 and the sealing ring 100 are produced into an integrated structure through a nitrile rubber vulcanization process, and the thickness of the density ring 115 is not less than 2 mm;

the sealing ring 100 is a material or a part for preventing fluid or solid particles from leaking from adjacent joint surfaces and preventing external impurities such as dust, moisture and the like from invading parts inside machine equipment, the sealing ring 100 has the function of sealing and leakage prevention when in pipeline connection, the material of the sealing ring 100 is nitrile rubber, the nitrile rubber is prepared from butadiene and acrylonitrile by emulsion polymerization, the nitrile rubber is mainly produced by low-temperature emulsion polymerization, the nitrile rubber has excellent oil resistance, higher wear resistance, better heat resistance and strong bonding force, the nitrile rubber has good sealing effect, meanwhile, the metal piece has good connection performance, the ear hook 200 has the function of installing fastening bolts when in butt joint of pipelines, two groups of pipelines are fixedly connected through the connecting bolts on the inner wall of the ear hook 200, the sealing effect is improved by bearing the sealing ring, six groups are symmetrically arranged in the ear hook 200 array, so that the bolt connection stress is more uniform, the sealing effect is prevented from being influenced by the deflection of the position of the sealing ring 100 caused by uneven stress;

the main material of the ear hook 200 is nitrile rubber, the ear hook 200 and the sealing ring 100 are arranged into an integrated structure, so that the sealing effect is better, gaps which may appear are isolated, the sealing assembly 300 has the function of compensating the gaps which appear on the inner wall of the sealing ring 100 through the deformation of the sealing assembly 300 when the sealing assembly is screwed and extruded by fastening bolts, so that the inner wall structure of the sealing ring 100 is more compact, the sealing effect of the sealing ring is further improved, the shell 110 has the function of installing the chlorinated polyethylene rubber 310, the inner part of the sealing ring 100 is divided into two symmetrical cavities through the matching of the density ring 115 and the shell 110, the chlorinated polyethylene rubber 310 is filled in the cavities to have the function of improving the sealing performance, the shell 110 is arranged into nitrile rubber, and the shell 110 has the function of wrapping and installing the chlorinated polyethylene rubber;

the release agent 111 is a functional substance between a mold and a finished product, the release agent 111 has chemical resistance, the release agent 111 is not dissolved when contacting with chemical components of different resins, particularly styrene and amines, the release agent 111 also has heat resistance and stress resistance, the release agent 111 has the advantages of preventing the sealing ring 100 from being condensed and being not detachable when detaching pipelines in sealing connection, the first sealing edge 112 and the second sealing edge 113 have the effects of wrapping the butted pipelines, increasing the contact area of the pipelines and the sealing ring 100 and improving the sealing effect, the density ring 115 has the effect of dividing the sealing ring 100 into two cavity areas, and the density ring 115 has the effect of installing the first filling plate 320;

further, the ear hook 200 is circular, specifically, the ear hook 200 and the outer wall of the sealing ring 100 are of an integrated structure, the top of the ear hook 200 is provided with a gasket groove 210, the gasket groove 210 is annular, the gasket groove 210 has the function of installing a gasket 230, when a fastening bolt is installed, the outer wall of the fastening bolt can be better connected with the ear hook 200 by sleeving the gasket 230 on the outer wall of the fastening bolt, and the gasket 230 is made of metal aluminum;

further, a screw hole 220 is formed in the center of the top of the ear-hook 200, specifically, the screw hole 220 penetrates through the upper surface and the lower surface of the ear-hook 200, a gasket 230 is sleeved on the top of the gasket groove 210, a through hole 231 is formed in the surface of the gasket 230, the through hole 231 is in a fine irregular hole shape, and the screw hole 220 has the function of installing a fastening bolt;

further, the top and bottom of the ear-hook 200 are configured identically, specifically, the gasket groove 210, the screw hole 220 and the gasket 230 are provided with two sets up and down symmetrically with respect to the sealing ring 100, and the gasket groove 210, the screw hole 220 and the gasket 230 are provided with two sets up and down, so that the pipes at the two ends of the sealing ring 100 can be conveniently connected in a sealing manner under the same condition, the two ends of the sealing ring 100 have the same hand-in effect, and the sealing performance is improved;

further, the sealing assembly 300 comprises chlorinated polyethylene rubber 310, specifically, the chlorinated polyethylene rubber 310 is set to be in a normal powder shape, the chlorinated polyethylene rubber 310 is filled in a cavity in the inner wall of the shell 110, a first filling plate 320 is arranged at the bottom of the chlorinated polyethylene rubber 310, the chlorinated polyethylene rubber 310 is a saturated high polymer material, the appearance of the chlorinated polyethylene rubber 310 is white powder, and the chlorinated polyethylene rubber 310 is nontoxic and odorless, has excellent weather resistance, ozone resistance, chemical resistance and aging resistance, and has excellent oil resistance, flame resistance and coloring performance, the chlorinated polyethylene rubber 310 has excellent fluidity, when the chlorinated polyethylene rubber 310 is extruded under stress, the chlorinated polyethylene rubber 310 can compensate and fill gaps in the inner wall of the sealing assembly 300 through flowing, so that the inner structure of the shell 110 is flat, the sealing effect of the sealing ring 100 is improved, when the outer part of the sealing ring 100 is uneven, when a gap is formed at the joint, the gap can be timely filled, the first filling plate 320 is made of metal aluminum, the metal aluminum is silver light metal and has good ductility, when the metal aluminum is stressed and is subjected to external force, the gap of the inner wall of the shell 110 is filled through self deformation, and meanwhile, the first special-shaped hole 321 is formed in the surface of the first filling plate 320, so that the first special-shaped hole 321 is filled when the chlorinated polyethylene rubber 310 is stressed, the connection rigidity of the sealing ring 100 is increased, and the sealing effect is improved;

further, the shape of the first filling plate 320 is consistent with that of the sealing ring 100, specifically, two groups of the first filling plates 320 are arranged, and the two groups of the first filling plates 320 are vertically symmetrically and fixedly installed at the top and the bottom of the density ring 115;

further, the first filling plate 320 has a first special-shaped hole 321 formed in the surface thereof, and specifically, the first filling plate 320 has a deformation performance under stress.

The using process of the invention is as follows: when the device is used, the release agent 111 is sprayed on the outer wall of the sealing ring 100, then the sealing ring 100 is butted at two ends of two groups of pipelines to be connected, the pipelines are inserted into the sealing groove 114, then the position of the sealing ring 100 is adjusted, the gaskets 230 are sequentially inserted into the inner walls of the twelve groups of screw holes 220, the gaskets 230 are pressed on the inner walls of the gasket grooves 210, then the nuts are fastened and connected through the nuts, the chlorinated polyethylene rubber 310 flows on the inner wall of the shell 110 when being extruded, when the shell 110 generates a gap, the chlorinated polyethylene rubber 310 flows into the gap through the fluidity, and then the gap on the inner wall of the shell 110 is compensated and filled by being stressed and deformed when the first filling plate 320 is extruded, so that the structure of the inner wall of the shell 110 is more compact.

Example 2:

referring to fig. 6, the present invention provides a nitrile rubber sealing member, which includes a sealing ring 100, an ear-hook 200 and a sealing assembly 300;

the sealing assembly 300 further comprises a second filling plate 330, the second filling plate 330 is provided with two groups, the two groups of second filling plate 330 are vertically symmetrically and fixedly arranged at the top and the bottom of the density ring 115, the second special-shaped holes 331 are formed in the surface of the second filling plate 330, the second filling plate 330 has the stress deformation performance, the second filling plate 330 is made of sponge, the sponge is made of porous material and has good water absorption performance and can be used for cleaning articles, the common sponge is made of wood cellulose fibers or foamed plastic polymers, and the gaps of the inner wall of the shell 110 can be filled through the deformation of the sponge when the sponge is subjected to external force, so that the sealing effect is improved.

The using process of the invention is as follows: when the invention is used, a person skilled in the art replaces the first filling plate 320 in the embodiment 1 with the second filling plate 330, then sprays the release agent 111 on the outer wall of the sealing ring 100, then butt-joints the sealing ring 100 at two ends of two groups of pipelines to be connected, inserts the pipelines into the sealing groove 114, then adjusts the position of the sealing ring 100, inserts the gasket 230 on the inner walls of twelve groups of screw holes 220 in sequence, presses the gasket 230 on the inner wall of the gasket groove 210, then fastens and connects the nuts through the nuts, flows on the inner wall of the shell 110 when the chlorinated polyethylene rubber 310 is extruded, flows into the gap through the fluidity of the chlorinated polyethylene rubber 310 when the shell 110 generates a gap, and then compensates and fills the gap on the inner wall of the shell 110 by being deformed when the second filling plate 330 is extruded, so that the inner wall structure of the shell 110 is more compact.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.