CN110060808B - Polypropylene sheet for wire - Google Patents
Polypropylene sheet for wire Download PDFInfo
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- CN110060808B CN110060808B CN201910408002.7A CN201910408002A CN110060808B CN 110060808 B CN110060808 B CN 110060808B CN 201910408002 A CN201910408002 A CN 201910408002A CN 110060808 B CN110060808 B CN 110060808B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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Abstract
The invention belongs to the technical field of polypropylene application, and particularly relates to a polypropylene sheet for wires; comprises a sheet material body; an air storage cavity, a liquid storage cavity and a reaction cavity are formed in the sheet body from top to bottom; a group of vertically placed arrows are arranged in the gas storage cavity, the tail parts of the arrows are contacted with the gas storage cavity through stretched arrow strings, the arrow strings and the gas storage cavity are bonded through synthetic resin glue, the head parts of the arrow strings extend into the liquid storage cavity, and the end parts of the arrow strings are fixedly connected with the gas storage cavity; a liquid storage ball is arranged right below the arrow, the thickness of the liquid storage ball is controlled to be 1-2 cm, the liquid storage ball is fixedly connected in a liquid storage cavity, and flame retardant liquid is compressed and filled in the liquid storage ball; the sheet material provided by the invention has a simple structure, and after the outermost layer of the sheet material body is combusted, the arrow can drive the arrow to puncture the liquid storage ball, so that the flame-retardant liquid in the sheet material flows out to form a flame-retardant layer, and the wire materials in the sheet material are effectively protected.
Description
Technical Field
The invention belongs to the technical field of polypropylene application, and particularly relates to a polypropylene sheet for wires.
Background
Polypropylene, a thermoplastic resin made by polymerizing propylene. The polypropylene is divided into isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene according to the arrangement position of methyl; the methyl groups arranged on the same side of the main molecular chain are called isotactic polypropylene, if the methyl groups are arranged on both sides of the main molecular chain disorderly, the isotactic polypropylene is called, and when the methyl groups are arranged on both sides of the main molecular chain alternately, the syndiotactic polypropylene is called. In general, polypropylene resins produced industrially have an isotactic structure content of about 95% and the balance of atactic or syndiotactic polypropylene. The industrial product takes an isotactic substance as a main component. Polypropylene also includes copolymers of propylene with a small amount of ethylene. Is usually a translucent colorless solid, odorless and nontoxic; the melting point can reach 167 ℃ because the structure is regular and highly crystallized; the product is heat-resistant and corrosion-resistant, and the steam sterilization of the product is a remarkable advantage. The density is low, and the plastic is the lightest general plastic.
Polypropylene can be used as a protective layer of wires, such as wires, optical fibers and the like, because of its good insulation property, but because polypropylene has a low melting point and is rapidly melted when being burnt, the wires are burnt, the economic loss is large, polypropylene loses the function of protecting the wires, and particularly for thicker wires, once a fire occurs, the loss is large, so that the problem needs to be solved.
Disclosure of Invention
The invention provides a polypropylene sheet for wires, which aims to make up the defects of the prior art and solve the problems that in the prior art, the polypropylene sheet has low melting point and cannot protect the wires after burning in fire.
The technical scheme adopted by the invention for solving the technical problems is as follows: the polypropylene sheet for the wire comprises a sheet body; an air storage cavity, a liquid storage cavity and a reaction cavity are formed in the sheet body from top to bottom; a group of vertically placed arrows are arranged in the gas storage cavity, the tail parts of the arrows are contacted with the gas storage cavity through stretched arrow strings, the arrow strings and the gas storage cavity are bonded through synthetic resin glue, the head parts of the arrow strings extend into the liquid storage cavity, and the end parts of the arrow strings are fixedly connected with the gas storage cavity; a liquid storage ball is arranged right below the arrow, the thickness of the liquid storage ball is controlled to be 1-2 cm, the liquid storage ball is fixedly connected in a liquid storage cavity, flame-retardant liquid is compressed and filled in the liquid storage ball, the arrow string resets when the sheet body catches fire, and the arrow flies out of the arrow string to puncture the liquid storage ball; after the outermost layer of the sheet body is burnt, the arrow string can be changed into a loose state from a stretching state, the arrow can fly out of the arrow string and puncture the liquid storage ball, after the arrow punctures the liquid storage ball, the flame retardant liquid in the liquid storage ball is discharged and enters the liquid storage cavity to form the flame retardant layer, so that the liquid wrapped in the sheet body is protected, the wires wrapped by the sheet body are prevented from burning, and a good flame retardant effect is achieved.
Preferably, a partition plate is arranged in the reaction cavity, one end of the partition plate penetrates through the top of the reaction cavity and extends into the liquid storage ball, and the other end of the partition plate is in contact with the bottom of the reaction cavity due to the gravity of the flame-retardant liquid in the liquid storage ball; iron powder and copper sulfate solution are placed in the reaction cavity and are separated through a partition plate, after the liquid storage ball is punctured by the arrow, the partition plate moves upwards, and the iron powder and the copper sulfate solution react to absorb heat; because of the reason that the fire-retardant liquid in the deposit liquid ball was discharged, the fire-retardant liquid gravity in the deposit liquid ball constantly reduced, because of the reason that the fire-retardant liquid gravity in the deposit liquid ball constantly reduced, the baffle can shift up in the deposit liquid ball, and when the baffle shifted up, the iron powder and the copper sulfate solution reaction heat absorption of reaction intracavity have reduced the sheet body because of the temperature that the burning produced, have slowed down the speed that the sheet body burns, have protected the wire rod of sheet body parcel.
Preferably, a cavity is formed in the arrow, an arrow made of a magnet is connected in the cavity in a sliding manner, a rectangular magnetic block is fixedly connected to the part, located in the liquid storage ball, of the partition plate, the magnetism of the rectangular magnetic block is larger than that of the arrow, the magnetic pole of the rectangular magnetic block is the same as that of the arrow, when the partition plate moves upwards, the rectangular magnetic block moves upwards, and the arrow slides in the cavity to enable the arrow to move upwards; when the partition plate moves upwards in the liquid storage ball, the rectangular magnetic block fixedly connected with the partition plate is mutually repelled with the same magnetic poles of the arrow, so that the arrow also moves upwards when the partition plate moves upwards in the liquid storage ball, the discharging speed of the flame-retardant liquid in the liquid storage ball is accelerated, the flame-retardant layer formed by the flame-retardant liquid can be quickly formed, and the wire wrapped by the sheet body is further protected.
Preferably, valves are arranged on two sides below the liquid storage ball, the valves are in sliding connection with the liquid storage ball, the valves are connected with the rectangular magnetic blocks through rigid ropes, and the valves are pulled to be opened through the rigid ropes when the rectangular magnetic blocks move upwards; the baffle drives the rectangular magnetic block to move upwards when moving upwards in the liquid storage ball, and when the rectangular magnetic block moves upwards, the valve is pulled to be opened through the rigid rope, so that the discharging speed of flame-retardant liquid in the liquid storage ball is further improved, and the flame-retardant layer is favorably and quickly formed to carry out good protection on the wire wrapped by the sheet body.
Preferably, an air cylinder is arranged in the reaction cavity, and the output end of the air cylinder is fixedly connected with a push block; the cavity is connected with the reaction cavity through a hose, the hose is positioned in the sheet body, and when the arrow moves upwards, gas in the cavity enters the cylinder to drive the cylinder to work; when the rectangular magnetic block moves upwards, the magnetism of the rectangular magnetic block is larger than that of an arrow, the magnetism of the rectangular magnetic block is the same as the magnetic pole of the arrow, when the rectangular magnetic block moves upwards, the arrow can move upwards in the cavity, when the arrow moves in the cavity, compressed gas enters the cylinder through the hose, after the arrow enters the gas in the cylinder, the cylinder works to push the push block to move, the reaction rate of iron powder and copper sulfate solution in the reaction cavity is improved, the temperature in the sheet body is effectively reduced, and the wire wrapped by the sheet body is better protected.
Preferably, the arrow string is of a hollow structure, carbon dioxide gas is filled in the arrow string of the hollow structure, and the carbon dioxide gas is used for isolating air; when the fire contacts with the arrow strings to burn the arrow strings, carbon dioxide gas inside the arrow strings is released, partial air can be blocked, and the burning speed of the sheet body is reduced.
After the outermost layer of the sheet body is burnt, the arrow string is changed into a loose state from a stretching state, the arrow flies out of the arrow string to puncture the liquid storage ball, and after the arrow punctures the liquid storage ball, the flame retardant liquid in the liquid storage ball is discharged and enters the liquid storage cavity to form the flame retardant layer, so that the liquid wrapped in the sheet body is protected, the wires wrapped by the sheet body are prevented from burning, and a good flame retardant effect is achieved; when the fire contacts with the arrow strings to burn the arrow strings, carbon dioxide gas in the arrow strings is released, partial air can be blocked, and the burning of the sheet body is reduced; the gravity of the flame-retardant liquid in the liquid storage ball is continuously reduced due to the discharge of the flame-retardant liquid in the liquid storage ball, the partition plate can move upwards in the liquid storage ball due to the continuous reduction of the gravity of the flame-retardant liquid in the liquid storage ball, and when the partition plate moves upwards, the iron powder and the copper sulfate solution in the reaction cavity react to absorb heat, so that the temperature of the sheet body generated by combustion is reduced, the combustion speed of the sheet body is slowed down, and wires wrapped by the sheet body are protected; when the partition plate moves upwards in the liquid storage ball, the rectangular magnetic block fixedly connected with the partition plate and the magnetic poles of the arrows repel each other, so that the arrows move upwards when the partition plate moves upwards in the liquid storage ball, the discharge rate of the flame-retardant liquid in the liquid storage ball is accelerated, a flame-retardant layer formed by the flame-retardant liquid can be quickly formed, and the wire wrapped by the sheet body is further protected; the partition board drives the rectangular magnetic block to move upwards while moving upwards in the liquid storage ball, and when the rectangular magnetic block moves upwards, the rigid rope pulls the valve to open, so that the discharging speed of the flame-retardant liquid in the liquid storage ball is further improved, and the flame-retardant layer is rapidly formed, so that the wire wrapped by the sheet body is well protected; when the rectangular magnetic block moves upwards, the magnetism of the rectangular magnetic block is larger than that of an arrow, the magnetism of the rectangular magnetic block is the same as the magnetic pole of the arrow, when the rectangular magnetic block moves upwards, the arrow can move upwards in the cavity, when the arrow moves in the cavity, compressed gas enters the cylinder through the hose, after the arrow enters the gas in the cylinder, the cylinder works to push the push block to move, the reaction rate of iron powder and copper sulfate solution in the reaction cavity is improved, the temperature in the sheet body is effectively reduced, and the wire wrapped by the sheet body is better protected.
The invention has the following beneficial effects:
1. the polypropylene sheet for the wire is simple in structure, and after the outermost layer of the sheet body is burnt, the arrow string can drive the arrow to puncture the liquid storage ball, so that the flame-retardant liquid in the sheet body flows out to form the flame-retardant layer, and the wire included in the sheet is effectively protected.
2. According to the polypropylene sheet for the wire, the partition plate is moved upwards by using the continuous outflow of the flame-retardant liquid in the liquid storage ball, so that the iron powder and the copper sulfate solution stored in the reaction cavity react, the iron powder and the copper sulfate solution can absorb heat during reaction, the burning rate of the sheet body is slowed down, and the time can be won for rescuing the wire wrapped in the polypropylene sheet.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
in the figure: the device comprises a sheet body 1, an air storage cavity 11, a liquid storage cavity 12, a reaction cavity 13, an arrow 2, an arrow string 21, a liquid storage ball 3, a partition plate 4, a cavity 5, an arrow 51, a rectangular magnet 52, a valve 6, a rigid rope 61, a cylinder 7, a push block 71 and a hose 72.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 3, the polypropylene sheet for wire rods according to the present invention includes a sheet body 1; an air storage cavity 11, a liquid storage cavity 12 and a reaction cavity 13 are formed in the sheet body 1 from top to bottom; a group of vertically placed arrows 2 are arranged in the air storage cavity 11, the tail parts of the arrows 2 are in contact with the air storage cavity 11 through arrow strings 21 in a stretching state, the arrow strings 21 are bonded with the air storage cavity 11 through synthetic resin glue, the head parts of the arrow strings 21 extend into the liquid storage cavity 12, and the end parts of the arrow strings 21 are fixedly connected with the air storage cavity 11; a liquid storage ball 3 is arranged right below the arrow 2, the thickness of the liquid storage ball 3 is controlled to be 1-2 cm, the liquid storage ball 3 is fixedly connected in a liquid storage cavity 12, flame retardant liquid is filled in the liquid storage ball 3 in a compressed mode, the arrow string 21 resets when the sheet body 1 is ignited, and the arrow 2 flies out of the arrow string 21 to puncture the liquid storage ball 3; after the outermost layer of the sheet body 1 is burnt, the arrow string 21 is changed from a stretching state to a relaxing state, the arrow 2 flies out of the arrow string 21 and punctures the liquid storage ball 3, after the arrow 2 punctures the liquid storage ball 3, the flame retardant liquid in the liquid storage ball 3 is discharged and enters the liquid storage cavity 12 to form a flame retardant layer, the liquid wrapped in the sheet body 1 is protected, the wire wrapped in the sheet body 1 is prevented from burning, and a good flame retardant effect is achieved.
As a specific embodiment of the present invention, a partition plate 4 is disposed in the reaction chamber 13, one end of the partition plate 4 passes through the top of the reaction chamber 13 and extends into the liquid storage ball 3, and the gravity of the combustion liquid in the liquid storage ball 3 makes the other end of the partition plate 4 contact with the bottom of the reaction chamber 13; iron powder and copper sulfate solution are placed in the reaction cavity 13 and are separated by a partition plate 4, after the liquid storage ball 3 is punctured by the arrow 2, the partition plate 4 moves upwards, and the iron powder and the copper sulfate solution react to absorb heat; because of the reason that the fire-retardant liquid in the deposit liquid ball 3 was discharged, the fire-retardant liquid gravity in the deposit liquid ball 3 constantly reduces, because of the reason that the fire-retardant liquid gravity in the deposit liquid ball 3 constantly reduces, baffle 4 can shift up in deposit liquid ball 3, when baffle 4 shifts up, iron powder and copper sulfate solution reaction heat absorption in the reaction chamber 13 has reduced sheet body 1 because of the temperature that the burning produced, the speed of the burning of sheet body 1 has been slowed down, the wire rod to sheet body 1 parcel has been protected.
As a specific embodiment of the invention, a cavity 5 is formed in the arrow 2, an arrow 51 made of a magnet is connected in the cavity 5 in a sliding manner, a rectangular magnetic block 52 is fixedly connected to a part of the partition plate 4 located in the liquid storage ball 3, the magnetism of the rectangular magnetic block 52 is greater than that of the arrow 51, the magnetic pole of the rectangular magnetic block 52 is the same as that of the arrow 51, when the partition plate 4 moves upwards, the rectangular magnetic block 52 moves upwards, and the arrow 51 slides in the cavity 5 to enable the arrow 2 to move upwards; when the partition plate 4 moves upwards in the liquid storage ball 3, the rectangular magnetic block 52 fixedly connected with the partition plate 4 and the magnetic poles of the arrow 51 are the same and mutually repulsed, so that when the partition plate 4 moves upwards in the liquid storage ball 3, the arrow 2 also moves upwards, the discharging speed of the flame-retardant liquid in the liquid storage ball 3 is accelerated, a flame-retardant layer formed by the flame-retardant liquid can be quickly formed, and the wire wrapped by the sheet body 1 is further protected.
As a specific embodiment of the invention, the two sides below the liquid storage ball 3 are provided with valves 6, the valves 6 are connected with the liquid storage ball 3 in a sliding manner, the valves 6 are connected with the rectangular magnetic block 52 through rigid ropes 61, and when the rectangular magnetic block 52 moves upwards, the rigid ropes 61 pull the valves 6 to open; the partition plate 4 drives the rectangular magnetic block 52 to move upwards while moving upwards in the liquid storage ball 3, and when the rectangular magnetic block 52 moves upwards, the valve 6 is pulled to be opened through the rigid rope 61, so that the discharging speed of the flame-retardant liquid in the liquid storage ball 3 is further increased, and the flame-retardant layer is favorably and quickly formed to well protect the wire wrapped by the sheet body 1.
As a specific embodiment of the present invention, a cylinder 7 is disposed in the reaction chamber 13, and an output end of the cylinder 7 is fixedly connected with a push block 71; the cavity 5 is connected with the reaction cavity 13 through a hose 72, the hose 72 is positioned inside the sheet body 1, and when the arrow 51 moves upwards, gas in the cavity 5 enters the cylinder 7 to drive the cylinder 7 to work; when the rectangular magnetic block 52 moves upwards, the magnetism of the rectangular magnetic block 52 is larger than that of the arrow 51, the magnetism of the rectangular magnetic block 52 is the same as that of the arrow 51, when the rectangular magnetic block 52 moves upwards, the arrow 51 can move upwards in the cavity 5, when the arrow 51 moves in the cavity 5, compressed gas enters the cylinder 7 through the hose 72, the cylinder 7 works to push the push block 71 to move after the gas enters the cylinder 7, the reaction rate of iron powder and copper sulfate solution in the reaction cavity 13 is improved, the temperature in the sheet body 1 is effectively reduced, and wires wrapped by the sheet body 1 are better protected.
As a specific embodiment of the invention, the arrow string 21 is a hollow structure, carbon dioxide gas is filled in the arrow string 21 of the hollow structure, and the carbon dioxide gas is used for isolating air; when the fire contacts the arrow string 21 to burn the arrow string 21, carbon dioxide gas inside the arrow string 21 is released, so that part of air can be blocked, and the burning speed of the sheet material body 1 is reduced.
When the sheet material is used, after the outermost layer of the sheet material body 1 is burnt, the arrow string 21 is changed from a stretching state to a relaxing state, the arrow 2 flies out of the arrow string 21 and punctures the liquid storage ball 3, after the arrow 2 punctures the liquid storage ball 3, the flame retardant liquid in the liquid storage ball 3 is discharged and enters the liquid storage cavity 12 to form a flame retardant layer, so that the liquid wrapped in the sheet material body 1 is protected, the wires wrapped in the sheet material body 1 are prevented from burning, and a good flame retardant effect is achieved; when the fire contacts the arrow string 21 to burn the arrow string 21, carbon dioxide gas in the arrow string 21 is released, so that part of air can be blocked, and the burning of the sheet body 1 is reduced; because of the reason that the fire-retardant liquid in the liquid storage ball 3 is discharged, the gravity of the fire-retardant liquid in the liquid storage ball 3 is continuously reduced, because of the reason that the gravity of the fire-retardant liquid in the liquid storage ball 3 is continuously reduced, the partition plate 4 can move upwards in the liquid storage ball 3, when the partition plate 4 moves upwards, the iron powder and the copper sulfate solution in the reaction cavity 13 react and absorb heat, the temperature generated by the combustion of the sheet body 1 is reduced, the combustion speed of the sheet body 1 is slowed down, and wires wrapped by the sheet body 1 are protected; when the partition plate 4 moves upwards in the liquid storage ball 3, the rectangular magnetic block 52 fixedly connected with the partition plate 4 and the magnetic poles of the arrow 51 are the same and mutually repulsed, so that the arrow 2 also moves upwards when the partition plate 4 moves upwards in the liquid storage ball 3, the discharging speed of the flame-retardant liquid in the liquid storage ball 3 is accelerated, a flame-retardant layer formed by the flame-retardant liquid can be quickly formed, and the wire wrapped by the sheet material body 1 is further protected; the partition plate 4 drives the rectangular magnetic block 52 to move upwards while moving upwards in the liquid storage ball 3, and when the rectangular magnetic block 52 moves upwards, the rigid rope 61 pulls the valve 6 to open, so that the discharge rate of the flame-retardant liquid in the liquid storage ball 3 is further improved, and the flame-retardant layer is favorably and quickly formed, so that the wire wrapped by the sheet material body 1 is well protected; when the rectangular magnetic block 52 moves upwards, the magnetism of the rectangular magnetic block 52 is larger than that of the arrow 51, the magnetism of the rectangular magnetic block 52 is the same as that of the arrow 51, when the rectangular magnetic block 52 moves upwards, the arrow 51 can move upwards in the cavity 5, when the arrow 51 moves in the cavity 5, compressed gas enters the cylinder 7 through the hose 72, the cylinder 7 works to push the push block 71 to move after the gas enters the cylinder 7, the reaction rate of iron powder and copper sulfate solution in the reaction cavity 13 is improved, the temperature in the sheet body 1 is effectively reduced, and wires wrapped by the sheet body 1 are better protected.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A polypropylene sheet for wire rods, characterized in that: comprising a sheet body (1); an air storage cavity (11), a liquid storage cavity (12) and a reaction cavity (13) are formed in the sheet body (1) from top to bottom; a group of vertically placed arrows (2) are arranged in the air storage cavity (11), the tail parts of the arrows (2) are in contact with the air storage cavity (11) through arrow strings (21) in a stretching state, the arrow strings (21) are bonded with the air storage cavity (11) through synthetic resin glue, the head parts of the arrow strings (21) extend into the liquid storage cavity (12), and the end parts of the arrow strings (21) are fixedly connected with the air storage cavity (11); a liquid storage ball (3) is arranged right below the arrow (2), the thickness of the liquid storage ball (3) is controlled to be 1-2 cm, the liquid storage ball (3) is fixedly connected in a liquid storage cavity (12), flame retardant liquid is filled in the liquid storage ball (3) in a compression mode, an arrow string (21) resets when the sheet body (1) catches fire, and the arrow (2) flies out from the arrow string (21) to puncture the liquid storage ball (3);
a partition plate (4) is arranged in the reaction cavity (13), one end of the partition plate (4) penetrates through the top of the reaction cavity (13) and extends into the liquid storage ball (3), and the gravity of the combustion liquid in the liquid storage ball (3) enables the other end of the partition plate (4) to be in contact with the bottom of the reaction cavity (13);
a cavity (5) is formed in the arrow (2), an arrow (51) made of a magnet is connected in the cavity (5) in a sliding mode, a rectangular magnetic block (52) is fixedly connected to the part, located in the liquid storage ball (3), of the partition plate (4), the magnetism of the rectangular magnetic block (52) is larger than that of the arrow (51), the magnetic pole of the rectangular magnetic block (52) is the same as that of the arrow (51), when the partition plate (4) moves upwards, the rectangular magnetic block (52) moves upwards, and the arrow (51) slides in the cavity (5) to enable the arrow (2) to move upwards;
the liquid storage ball is characterized in that valves (6) are arranged on two sides of the lower portion of the liquid storage ball (3), the valves (6) are in sliding connection with the liquid storage ball (3), the valves (6) are connected with the rectangular magnetic blocks (52) through rigid ropes (61), and the valves (6) are pulled to be opened through the rigid ropes (61) when the rectangular magnetic blocks (52) move upwards.
2. The polypropylene sheet for wire rods according to claim 1, wherein: an air cylinder (7) is arranged in the reaction cavity (13), and the output end of the air cylinder (7) is fixedly connected with a push block (71); the cavity (5) is connected with the reaction cavity (13) through a hose (72), the hose (72) is located inside the sheet body (1), and when the arrow (51) moves upwards, gas in the cavity (5) enters the cylinder (7) to drive the cylinder (7) to work.
3. The polypropylene sheet for wire rods according to claim 1, wherein: the arrow string (21) is of a hollow structure, carbon dioxide gas is filled in the arrow string (21) of the hollow structure, and the carbon dioxide gas is used for isolating air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408002.7A CN110060808B (en) | 2019-05-15 | 2019-05-15 | Polypropylene sheet for wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408002.7A CN110060808B (en) | 2019-05-15 | 2019-05-15 | Polypropylene sheet for wire |
Publications (2)
| Publication Number | Publication Date |
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| CN110060808A CN110060808A (en) | 2019-07-26 |
| CN110060808B true CN110060808B (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910408002.7A Active CN110060808B (en) | 2019-05-15 | 2019-05-15 | Polypropylene sheet for wire |
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| CN (1) | CN110060808B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6136423A (en) * | 1996-01-11 | 2000-10-24 | Fitzpatrick; Peter J. | Fire fighting apparatus |
| CN205348552U (en) * | 2016-02-24 | 2016-06-29 | 曾福英 | Interior decoration decorates fire wall |
| CN205595128U (en) * | 2016-04-22 | 2016-09-21 | 江苏东强股份有限公司 | Fire -retardant fire -resistant shielded cable of infiltration formula |
| CN208052744U (en) * | 2018-04-03 | 2018-11-06 | 江苏泛亚橡塑新材料有限公司 | A kind of highly effective flame-retardant type sponge |
| CN208379855U (en) * | 2018-06-14 | 2019-01-15 | 上海尧帝建筑装饰材料有限公司 | A kind of fireproof curtain wall |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120088050A1 (en) * | 2007-01-16 | 2012-04-12 | Berry Plastics Corporation | Reinforced flame retardant film for blast resistance protection |
| CN109441033A (en) * | 2018-11-27 | 2019-03-08 | 赵文立 | A kind of graphene fever wallpaper and its application method |
-
2019
- 2019-05-15 CN CN201910408002.7A patent/CN110060808B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6136423A (en) * | 1996-01-11 | 2000-10-24 | Fitzpatrick; Peter J. | Fire fighting apparatus |
| CN205348552U (en) * | 2016-02-24 | 2016-06-29 | 曾福英 | Interior decoration decorates fire wall |
| CN205595128U (en) * | 2016-04-22 | 2016-09-21 | 江苏东强股份有限公司 | Fire -retardant fire -resistant shielded cable of infiltration formula |
| CN208052744U (en) * | 2018-04-03 | 2018-11-06 | 江苏泛亚橡塑新材料有限公司 | A kind of highly effective flame-retardant type sponge |
| CN208379855U (en) * | 2018-06-14 | 2019-01-15 | 上海尧帝建筑装饰材料有限公司 | A kind of fireproof curtain wall |
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| CN110060808A (en) | 2019-07-26 |
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Effective date of registration: 20220107 Address after: 276000 north of Beicheng Second Road and east of luogushan Middle Road, Yishui County, Linyi City, Shandong Province Applicant after: Yishui Yite plastic products Co.,Ltd. Address before: 230000 Building 2, Institute of plasma physics, Chinese Academy of Sciences, Jinggang Town, Shushan District, Hefei City, Anhui Province Applicant before: Qiu Yuhao |
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